Performance information

• Color Emotions for Skin Color Under a Light System Controlling Color Rendering Property　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Yoshimasa Tawatsuji; Kazunori Kaede; Keiichi Watanuki
  Emotional Engineering, Vol. 9: Move Ahead Toward Self-Satisfying Society (SSS), First page：91, Last page：111, Jan. 2022
  Emotional responses to color stimuli are referred to as color emotions. The current study reveals the relationships between color rendering properties and color emotions pertaining to facial skin colors, by using a light system that controlled the color rendering property. This study summarizes two previous studies. The first study examined color emotions toward facial skin color under various color rendering prop-erties. The second study assessed the relationships between color emotions using an average face irradiated by various illuminants with different color rendering prop-erties. Based on the models of the relationship between color emotions and color rendering properties obtained through these studies, a comparison of skin color itself and color emotions toward facial skin color are discussed. Specifically, the results suggest that color shifts in the red and green directions have different effects on the impressions of single colors and average faces.
  In book
  DOI：https://doi.org/10.1007/978-3-031-05867-7_9
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85161255662&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85161255662&origin=inward
  DOI ID：10.1007/978-3-031-05867-7_9, SCOPUS ID：85161255662
• Immediate Effect of Thumb-to-Ground Distance Training by a Target Multivariate Gait Data Generation Method Considering Physical Differences　　　　　　　　　　　　　　　
  Yusuke Osawa; Keiichi Watanuki; Kazunori Kaede
  Lecture Notes in Networks and Systems, Volume：260, First page：749, Last page：756, 2021
  Herein, we developed a machine-learning-based multivariate gait feedback training system to address the recent increase in the number of people requiring nursing care. Our system considers the physical differences of trainees in order to provide effective gait training and to reduce the burden on caregivers and physical therapists. We focused on “stumbling” as a target of training and examined the immediate effects of this training system and evaluated the effects of one training session in terms of the thumb-to-ground distance, joint angle, and floor reaction force. As a result of the experiment, participants’ thumb-to-ground distance increased significantly, indicating the effect of training on stumbling. In addition, the results showed that each part of the body and the timing of the trainee’s gait can be adjusted to satisfy the important criteria that determine the ideal thumb-to-ground distance and that each individual has freedom of flexibility in other areas.
  Springer Science and Business Media Deutschland GmbH, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-80829-7_92
  DOI ID：10.1007/978-3-030-80829-7_92, ISSN：2367-3389, SCOPUS ID：85112244741
• Evaluation of Effect of Look Aside Driving on Avoidance Behaviors of Cyclists　　　　　　　　　　　　　　　
  Yuki Akimoto; Keiichi Watanuki; Kazunori Kaede
  Lecture Notes in Networks and Systems, Volume：260, First page：796, Last page：801, 2021
  In recent years, as bicycle delivery services and shared bicycles have become popular, an increase in the simultaneous use of bicycles and smartphones has been observed. Thus, collisions of pedestrians and cars have increased, becoming a social problem. The cause of this problem is considered to be the reduced attention span caused by gazing at a smartphone, which requires the development of a safe driving support system to prevent accidents. In this study, as a preliminary step toward the development of a system, we first examined the effects of looking at a smartphone on the attention span of bicyclists. The results indicated that looking at a smartphone reduced subjective attention, but there was no correlation between the distance between the appearance of a pedestrian and the collision.
  Springer Science and Business Media Deutschland GmbH, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-80829-7_97
  DOI ID：10.1007/978-3-030-80829-7_97, ISSN：2367-3389, SCOPUS ID：85112235745
• Evaluation of Entrainment of Heart Rate and Brain Activation Depending on the Listener’s Nodding Response and the Conversation Situation　　　　　　　　　　　　　　　
  Tomofumi Sakata; Keiichi Watanuki; Kazunori Kaede; Tomio Watanabe
  Lecture Notes in Networks and Systems, Volume：260, First page：788, Last page：795, 2021
  In recent years, conversations over the screen with the face visible have become useful for meetings and lectures. If the listener does not seem to respond, the speaker’s ease of speaking may change depending on the presence or absence of entrainment. We also confirmed entrainment depending on the presence or absence of the listener’s reaction. While the speaker was speaking, we obtained fingertip plethysmographs and cerebral blood flow for each of the listeners and speakers. From the results of this experiment, synchronization of brain activation was observed at specific sites depending on the response of the listener and the type of conversation. Many entrainments were observed in the heart rate variability during face-to-face conversation and the nodding response. From the above results, it can be concluded that the occurrence of entrainment depends on the type of conversation and the response of the listener.
  Springer Science and Business Media Deutschland GmbH, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-80829-7_96
  DOI ID：10.1007/978-3-030-80829-7_96, ISSN：2367-3389, SCOPUS ID：85112201281
• Spatial Perception Under Visual Restriction by Moving a Sound Source Using 3D Audio　　　　　　　　　　　　　　　
  Koki Murakami; Keiichi Watanuki; Kazunori Kaede
  Lecture Notes in Networks and Systems, Volume：260, First page：757, Last page：764, 2021
  Recently, a path navigation system for visually impaired persons was developed that provides direction using three-dimensional (3D) audio. However, the path navigation system only provides the directions to a destination—the person cannot perceive either the shape of the room or the obstacles. Therefore, we investigated the effectiveness of 3D audio in spatial perception under visual restrictions. We conducted a spatial perception experiment and a walking experiment to confirm how accurately people can perceive spatial information by moving a sound source using 3D audio. In these experiments, we developed a mixed-reality application to provide spatial information in a virtual environment. A noise sound was presented and moved along the shape of the virtual room. The experimental results suggest that people can perceive spatial information and walk around the room by moving a sound source along the shape of the room.
  Springer Science and Business Media Deutschland GmbH, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-80829-7_93
  DOI ID：10.1007/978-3-030-80829-7_93, ISSN：2367-3389, SCOPUS ID：85112195109
• Learning and visualization of features using MC-DCNN for gait training considering physical individual differences　　　　　　　　　　　　　　　
  Yusuke Osawa; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Journal of Biomechanical Science and Engineering, Volume：16, Number：1, First page：1, Last page：17, 2021
  Several training methods have been developed to acquire motion information during real-time walking; these methods also feed the information back to the trainee. Trainees adjust their gait to ensure that the measured value approaches the target value, which may not always be suitable for each trainee. Therefore, we aim to develop a gait feedback training system that considers individual differences, classifies the gait of the trainee, and identifies adjustments for body parts and timing. A convolutional neural network (CNN) has a feature extraction function and is robust in terms of each feature position; therefore, it can be used to classify a gait as ideal or non-ideal. Additionally, when the gradient-weighted class activation mapping (Grad-CAM) is applied to the gait classification model, the output measures the influence degree contributed by the trainee's each body part to the classification results. Thus, the trainee can visually determine the body parts that need to be adjusted through the use of the output. In this study, we focused on gaits related to stumbling. We measured the kinematics and kinetics data for participants and generated multivariate gait data, which were labeled as “gait rarely associated with stumbling” class or “gait frequently associated with stumbling” class using clustering with dynamic time warping. Next, the multichannel deep CNN (MC-DCNN) was used to learn the gait using the multivariate gait data and the corresponding classes. Finally, the data for verification were input into the MC-DCNN model, and we visualized the influence degrees of each place of the multivariate gait data for classification using GradCAM. The MC-DCNN model classified gaits with a high accuracy of 97.64±0.40%, and it learned the features that determine the thumb-to-ground distance. The output of the Grad-CAM indicated body parts, timing, and the relative strength of features that have an important effect on the thumb-to-ground distance.
  Scientific journal
  DOI：https://doi.org/10.1299/jbse.20-00337
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85106568062&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85106568062&origin=inward
  DOI ID：10.1299/jbse.20-00337, ISSN：1880-9863, SCOPUS ID：85106568062
• Examinations of Color Emotions for Average Faces　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Yoshimasa Tawatsuji; Kazunori Kaede; Keiichi Watanuki
  Lecture Notes in Networks and Systems, Volume：260, First page：725, Last page：731, 2021
  Emotional responses to color stimuli are referred to as color emotions, and relationships between color attributes and them have been discussed in past studies. In the current study, we reveal relationships between color rendering properties and color emotions pertain to face colors by using of a light system controlling color rendering property. The system we developed in the previous study has four color (red, green, blue, and yellow) LEDs to enrich color rendering property. This study provides a comprehensive discussion of color rendering properties and color preference to average face by summarizing past two studies. The first study examined color emotions against skin color under various color rendering properties. As a result, we confirmed that the color rendering property certainly affects color emotions, and we obtained regression models to represent color emotions by color rendering properties. The second study assessed relationships between color emotions against averaged face irradiated by various illuminants with different color rendering properties. As a result, we confirmed that the color rendering property certainly affects color preference, and we obtained regression models to represent color emotions by color rendering properties. Based on the model of the relationship between color emotions and color rendering properties obtained through these two studies, a comparison of skin color itself and color emotions as a face color is discussed. Specifically, the results suggest that color shifts in the red and green directions have different effects on the impressions of single colors and average faces.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-80829-7_89
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85112182274&origin=inward
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  DOI ID：10.1007/978-3-030-80829-7_89, ISSN：2367-3370, eISSN：2367-3389, SCOPUS ID：85112182274
• Generation of gait data less prone to stumbling considering the physical differences among trainees　　　　　　　　　　　　　　　
  Yusuke Osawa; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Journal of Biomechanical Science and Engineering, Volume：16, Number：4, First page：1, Last page：15, 2021
  Several training methods have been developed to obtain motion information during real-time walking and feed it back to trainees who adjust their gait to ensure that the measured gait parameters approach target value, which may not always be suitable for every trainee owing to physical differences between individuals. This paper proposes a method of setting this target value considering these physical differences and discusses the usefulness of the gait training method, wherein a multichannel deep convolutional neural network (MC-DCNN) gait classification model constructed by learning ideal or non-ideal gait features beforehand is used for trainee gait classification. Activation maximization is applied to the MC-DCNN model; data wherein the ideal walking features are activated are generated based on trainee gait data. However, the amounts of features to be activated to generate a possible and natural gait are restricted. The original trainee gait, beyond individual physical differences, and gait data generated based on the original gait data seem to yield the target value considering the physical differences among individuals. This study focused on gait related to stumbling. To verify its usefulness, a multivariate gait dataset consisting of kinematic and kinetic indices labeled as “gait rarely associated with stumbling” or “gait frequently associated with stumbling” was divided into a training set, validation set, and test set. The MC-DCNN model learned gait features for multivariate gait data classification in the training set. It classified the gait with 96.04±0.12% accuracy against the validation set. Finally, by applying the proposed method to the multivariate gait data contained in the test set, we generated multivariate gait data classified as “gait rarely associated with stumbling” based on the input data. In addition, the generated multivariate gait data include motion that increases the thumb-to-ground distance and describe possible and natural gait considering the physical differences among individuals.
  Scientific journal
  DOI：https://doi.org/10.1299/jbse.20-00478
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  DOI ID：10.1299/jbse.20-00478, ISSN：1880-9863, SCOPUS ID：85120314710
• Examinations of Color Emotions for Average Faces.　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Yoshimasa Tawatsuji; Kazunori Kaede; Keiichi Watanuki
  Advances in Industrial Design - Proceedings of the AHFE 2021 Virtual Conferences on Design for Inclusion, Affective and Pleasurable Design, Interdisciplinary Practice in Industrial Design, Kansei Engineering, and Human Factors for Apparel and Textile Engineering, First page：725, Last page：731, 2021
  Springer, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-80829-7_89
  DOI ID：10.1007/978-3-030-80829-7_89, DBLP ID：conf/ahfe/MuramatsuTKW21
• An Ontological Description of Recipients' Mental States for Designing Kansei Value Creation　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; KIMITA Koji; KAEDE Kazunori; WATANUKI Keiichi
  The Proceedings of Design & Systems Conference, Volume：2020.30, First page：1401, 2020
  In recent years, the concept of value co-creation, which has expanded from value creation, has become widespread. Value co-creation is considered as a process of interaction between the provider's offering of a service and the recipient's consumption of the service. If receivers perceive positive emotions as a kind of value, the process of recognizing their value creation is a matter of Kansei or Kansei engineering. In this study, we attempted to describe an ontology in relation to Kansei value creation. Specifically, we conceptualized value creation and value capture as a type of design model, and specified the relationship between them and the design elements that compose the design model.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2020.30.1401
  DOI ID：10.1299/jsmedsd.2020.30.1401, eISSN：2424-3078, CiNii Articles ID：130008058626
• Development of Pedal Operation Analysis Method for Car Driving Simulator Using Head-mounted Display　　　　　　　　　　　　　　　
  KAEDE Kazunori; KOBAYASHI Kaito; MURAMATSU Keiichi; WATANUKI Keiichi
  The Proceedings of Design & Systems Conference, Volume：2020.30, First page：2408, 2020
  A head-mounted display with a head-tracking function enables the user to observe all directions of the field of view in response to the movement of the head, which results in a highly immersive image presentation. It is considered that an automobile driving simulator using this technology can reproduce more realistic driving behaviors without any discomfort than a conventional simulator that presents images on a planar display. In this study, we analyzed the effects of changes in driving posture on pedal operation, focusing on the accelerator and brake pedal operations.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2020.30.2408
  DOI ID：10.1299/jsmedsd.2020.30.2408, eISSN：2424-3078, CiNii Articles ID：130008058599
• Attention-Guiding Effect Measurement and Gaze Frequency Analysis of Motion Illusion in Visual Search Tasks　　　　　　　　　　　　　　　
  TOKONABE Kota; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2020.30, First page：1303, 2020
  There are two mechanisms of visual attention, which have different developmental processes. One is passive bottom-up attention and the other is active top-down attention. LED guide lights attract attention by the movement of light. Although such a bottom-up attention-grabbing display is intuitive, it has a disadvantage for constant use. In this study, we focused on the attention-inducing effect of the motion illusion to induce the illusion of motion in still images. The purpose of this study was to propose a display with high attention-getting effect by incorporating optical illusions. In this study, we used an illusory image of moving gratings to give the illusion of motion by placing black and white gratings in front of a gray background. To investigate the attention-inducing effects of illusory images, we conducted a visual search task with stimuli of illusory images that were not related to the task. In the visual search task, we tested whether the target in the upright disturbance was tilted to the left or right. As a result, we found that the optical illusion reduced the reaction time when guiding attention to the target. In addition, we measured the number of eye movements during the task and analyzed the number of gazes by using a gaze-measuring device. As a result, we found that the number of gazes decreased when the illusion induced the target's attention. The results suggest that the motion-induced optical illusion induces visual attention.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2020.30.1303
  DOI ID：10.1299/jsmedsd.2020.30.1303, eISSN：2424-3078, CiNii Articles ID：130008058622
• Driver state estimation during automatic driving using seat pressure　　　　　　　　　　　　　　　
  SATO Hayata; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2020.30, First page：1308, 2020
  Various driver states are predicted during autonomous driving. Therefore, it is necessary to present information that can flexibly respond to behavior during autonomous driving. At that time, driver state estimation technology becomes important. In this research, we focused on the seat pressure sheet that can acquire the information only by sitting down. we measured seat pressure distribution using a driving simulator, and predicted driving behavior using a convolutional neural network. In this research, we predicted five driver states: "Forward gaze", "Cell phone use", "Distract (right)", "Sleeping", and "Distract (left)”. As a result, it was possible to predict with an accuracy of 78.8% in inter participant evaluation and 97.3% in overall evaluation.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2020.30.1308
  DOI ID：10.1299/jsmedsd.2020.30.1308, eISSN：2424-3078, CiNii Articles ID：130008058627
• Evaluating the Interaction Between Human Walking and Two-Dimensional Emotion Variation by Using Physiological Signals　　　　　　　　　　　　　　　
  Jyun Rong Zhuang; Guan Yu Wu; Ya Jing Guan; Keiichi Muramatsu; Keiichi Watanuki; Eiichiro Tanaka
  Advances in Intelligent Systems and Computing, Volume：952, First page：40, Last page：47, 2020
  The purpose of this study is to assess the interaction between walking and emotion variation. Two-dimension walking condition map and the two-dimension emotion map were used to understand their relation. According to the tendency of the changing walking gait in response to the emotion variation, we found that two factors can be influenced by each other. Therefore, by using this relation, we proposed an evaluation method for the user obtaining a better rehabilitation effect while using the assistive device. We recommended that the patient should walk comfortably through following the personal walking limitation, they thus can freely two-way control the emotion and walking while using an assistive device. To conclude, our proposed evaluation method can be employed for various assistive devices.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-20441-9_5
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85067277836&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85067277836&origin=inward
  DOI ID：10.1007/978-3-030-20441-9_5, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85067277836
• Development of an LED lighting system through evaluation of legibility and visual fatigue　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Keiichi Watanuki; Naoya Mashiko; Yoichiro Watanabe; Masutsugu Tasaki
  Emotional Engineering, Vol. 8: Emotion in the Emerging World, First page：229, Last page：240, Jan. 2020
  Light-emitting diodes (LEDs) are commonly used to backlight text indicators in vehicles, among other uses. It is desirable that such text indicators are both easily legible and have low fatigue-inducing qualities. Suitable spectral distributions for text presentation in vehicles have not yet been clarified. This study examined the legibility and fatigue experienced by participants when reading sentences presented through backlight emission for 10 min in a dark room. The backlight indicators employed both colored and white LEDs. The participants were asked to answer questionnaires to evaluate the LEDs’ legibility and fatigue. Moreover, the participants’ critical fusion frequency and brain activity were measured to objectively evaluate fatigue. The questionnaire results show that all of the colored backlighting displayed an almost equal legibility. The overall results suggest that participants were most (least) fatigued when viewing text illuminated by high color-rending (greenish white backlighting). Thus, fatigue can be reduced by using LEDs with different spectral distributions.
  In book
  DOI：https://doi.org/10.1007/978-3-030-38360-2_15
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  DOI ID：10.1007/978-3-030-38360-2_15, SCOPUS ID：85088471731
• Evaluation of Psychological Emotions During Fragrance Exposure by Chaotic Analysis of Fingertip Plethysmography　　　　　　　　　　　　　　　
  Tomofumi Sakata; Keiichi Watanuki; Keiichi Muramatsu; Kazunori Kaede
  Advances in Intelligent Systems and Computing, Volume：952, First page：167, Last page：176, 2020
  Fragrance influences the psychophysiological state of a person; the volume of fingertip plethysmography is consequently affected by the aspiration of aroma. In this study, stimulation threshold at the time of aroma suction and emotional change around the discrimination threshold were evaluated by analyzing both a questionnaire and fingertip plethysmograph measurement. We built a fragrance generator to confirm the stimulus threshold, discrimination threshold, and acclimatization time of smell. Participants were asked to take a subjective evaluation of aroma intensity, comfortableness (comfort/discomfort), and aroma frequency in real time. The results confirmed the chaotic nature of the time series data of the fingertip plethysmographs. Moreover, the fingertip plethysmographs fluctuated when the participants responded that it did not smell in the subjective evaluation and when the maximum Lyapunov exponent increased, as the aroma fluctuation of the fingertip plethysmographs enlarged, corresponding to the uncomfortable values of the subjective evaluation.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-20441-9_18
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  DOI ID：10.1007/978-3-030-20441-9_18, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85067289236
• Evaluation of Emotions Induced by 2D and 3D Video Systems in a Two-Dimensional Emotion Space　　　　　　　　　　　　　　　
  Akifumi Harada; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Advances in Intelligent Systems and Computing, Volume：952, First page：144, Last page：153, 2020
  Recently, virtual reality (VR) has become a readily available technology owing to its compatibility with many devices and applications, such as head-mounted displays (HMDs). It is easy to experience an immersive virtual space by using an HMD. Generally, three-dimensional (3D) videos are considered to provide more realistic depictions compared to two-dimensional (2D) videos. Specifically, even for the same video, the influence on the viewer differs between the two viewing methods. However, depending on the type of emotion invoked in the person by the image, the realism is not necessarily important, so 3D is not always a more useful viewing method. We prepared similar 2D and 3D images and conducted experiments by measuring cerebral blood flow, sweating, heart rate variability, and conducting a questionnaire survey. Then, in the image providing soothing, it was found that 3D expression tended not to be favored.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-20441-9_16
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  DOI ID：10.1007/978-3-030-20441-9_16, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85067296025
• Chaotic Analysis of Finger Plethysmogram During Aroma Exposure for Evaluating Emotions and Examination of Optimal Analysis Method　　　　　　　　　　　　　　　
  Tomofumi Sakata; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Advances in Intelligent Systems and Computing, Volume：1202 AISC, First page：987, Last page：992, 2020
  Fragrance influences the psychophysiological state of a person as the volume of fingertip plethysmogram changes during one’s aspiration of aroma. Recent studies have used aroma in various settings, such as for medical care, relaxation, and productivity-enhancing environments. However, no study has elucidated the kind of behavior shown on the fingertip plethysmograph near the stimulation and discrimination threshold for the sense of smell when the odor intensity of aroma changes. Although our research suggests that emotions can be evaluated using the Lyapunov exponent of chaos analysis, no study has clarified the appropriate method for chaos analysis. Therefore, in this study, we performed a chaotic analysis of fingertip plethysmograms for evaluating emotional changes near the stimulation and discrimination thresholds during aroma inhalation. Results were evaluated using a correlation dimension and Lyapunov exponent. The optimal analysis method was examined thereafter.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-51194-4_129
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  DOI ID：10.1007/978-3-030-51194-4_129, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85088500365
• Comparison of Object-Based Three-Dimensional Sound and Ambient Sound for Straight Walking　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Shigekimi Tsukada; Kazunori Kaede; Keiichi Watanuki
  Advances in Intelligent Systems and Computing, Volume：1202 AISC, First page：981, Last page：986, 2020
  At present, visually impaired people have difficulty using mobility support facilities due to their dependence on the surrounding environment, such as sound and snowfall. In addition, people who later became visually impaired may find it difficult to use these facilities. The current study aimed to develop an easy-to-use walking guidance system that uses three-dimensional (3D) sounds, regardless of the surrounding environment, and examined the characteristics of the guidance sounds produced by the 3D sounds. We implemented this system using a head-mounted display capable of generating three-dimensional sound. Participants were asked to walk in a visually restricted environment to either a real guidance sound or a 3D guidance sound with three types of ambient sounds, and their walking trajectory was evaluated. As a result, we found that the 3D guidance sound showed the opposite tendency to deflect from the ambient sound. However, the guidance accuracy of the 3D guidance sound was similar to that of the real guidance sound.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-51194-4_128
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  DOI ID：10.1007/978-3-030-51194-4_128, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85088506546
• Visualization of Features in Multivariate Gait Data: Use of a Deep Learning for the Visualization of Body Parts and Their Timing During Gait Training　　　　　　　　　　　　　　　
  Yusuke Osawa; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Advances in Intelligent Systems and Computing, Volume：1202 AISC, First page：1007, Last page：1013, 2020
  In this study, we aimed to examine the usefulness of gait classification and feature visualization based on multivariate data for the development of a gait feedback training system capable of considering the physical differences among the trainees. The multivariate data considered in this study were the joint angles and the ground reaction forces. In addition, all multivariate gait data were labeled as gait “rarely associated with stumbling” or “frequently associated with stumbling”. A convolutional neural network was used to learn the gait features. Furthermore, the feature parts of the multivariate gait data used for classification were visualized on a heat map created using Grad-CAM. As the results indicate, a heatmap is able to show the feature parts of a gait frequently associated with stumbling, through which the trainee can adjust their gait.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-51194-4_132
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85088513064&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85088513064&origin=inward
  DOI ID：10.1007/978-3-030-51194-4_132, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85088513064
• Evaluation of the Attention Effect of the Fraser-Wilcox Illusion in a Visual Discrimination Task　　　　　　　　　　　　　　　
  Kota Tokonabe; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Advances in Intelligent Systems and Computing, Volume：1202 AISC, First page：1000, Last page：1006, 2020
  This study aimed to propose a display that incorporates the Fraser-Wilcox illusion with a higher attention effect. Fraser-Wilcox illusion is a type of visual illusion in which a part of a still image appears to be moving. We compared the attention effects of shapes that induce the Fraser-Wilcox illusion and those that do not. As an evaluation method of attention recall effect, the visual discrimination task, which was an experimental technique to measure the characteristics of visual attention, was used. The correlation between the strength of visual illusion and the target reaction time was examined. As a result, a strong negative correlation was observed. The larger the strength of visual illusion, the faster the detection of the target. These results suggest that the Fraser-Wilcox illusion has an alerting effect on visual illusion.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-51194-4_131
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85088533778&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85088533778&origin=inward
  DOI ID：10.1007/978-3-030-51194-4_131, ISSN：2194-5357, eISSN：2194-5365, SCOPUS ID：85088533778
• Visualization and generation for musical timbre using dynamic time warping method　　　　　　　　　　　　　　　
  KUBOTA Kouki; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2020, Number：0, First page：S12103, 2020
  

  In recent years, composers are required to have a high level of understanding of musical equipment due to the diversification of equipment, and researches on musical instruments and timbre understanding support systems have been conducted. Some of the previous studies use the overtones of the instruments as features and support them with illustrations based on principal component analysis, but further investigation of the correspondence with the overtone parameters is needed. In this study, the similarity of the overtone components was calculated using the dynamic time warping method and illustrated by clustering and principal component analysis, and the correspondence between the parameters was discussed in detail. As a result, it was suggested that there may be a correspondence between the visualized figure and the fundamental frequency components in the middle and high frequency range.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2020.S12103
  DOI ID：10.1299/jsmemecj.2020.S12103, CiNii Articles ID：130008004328
• Influence of Transparency on Depth Perception During Watching See-through Vision:(About Estimation Methods of Point of Gaze)　　　　　　　　　　　　　　　
  HOMMA Ryusei; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2020, Number：0, First page：S11526, 2020
  

  In this study, we examine influence of difference in estimation method of point of gaze on evaluation of transparency during watching see-through vision. There are the two methods of estimating point of gaze, which are the method that uses the midpoint of the line segment that shows the shortest distance between the two lines of sight in three-dimensional space or the method of estimating it from intersection of two lines of sight on the two-dimensional plane. We compared these methods. As the result, there are significant differences in estimation error of convergence distance and there is relatively small variance in the three-dimensional point-of-gaze estimation methods. This result suggests that the three-dimensional point-of-gaze estimation method is more effective in evaluating transparency.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2020.S11526
  DOI ID：10.1299/jsmemecj.2020.S11526, CiNii Articles ID：130008004283
• Impression Evaluation of Presence when using a Driving Simulator　　　　　　　　　　　　　　　
  KOBAYASHI Kaito; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2020, Number：0, First page：S11523, 2020
  

  When using a driving simulator, there is a problem that if the driving environment is not realistic enough, there will be a deviation from actual driving. On the other hand, it is said that using a head-mounted display (HMD), which has become widespread in recent years, improves the sense of reality in a VR environment.

  In this study, for the purpose of creating an index to evaluate the sense of presence, we simulated driving under two conditions of HMD and flat display, and classified the factors from subjective impression evaluation.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2020.S11523
  DOI ID：10.1299/jsmemecj.2020.S11523, CiNii Articles ID：130008004282
• Impression evaluation of three-dimensional shape formed by laminate shaping method and its touch　　　　　　　　　　　　　　　
  SUZUKI Tetsuhiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2020, Number：0, First page：S11511, 2020
  

  In this study, we conducted an experiment using the SD method questionnaire to find out how the impression of the person who touched the line is affected by the difference in the three-dimensional shape of the line formed by the laminate shaping method. We conducted a factor analysis on the questionnaire results and compared the impressions of each line. As a result of the factor analysis, five factors were extracted, the tendency of the line impression was found from the result of the questionnaire, and a significant difference was found in the impression difference of some lines. In addition, the relationship between the adjective pairs used in the SD method and the five senses was compared, and it was suggested that the lines used this experiment give the impression of being highly related to vision.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2020.S11511
  DOI ID：10.1299/jsmemecj.2020.S11511, CiNii Articles ID：130008004270
• Subjective and Objective Evalution of Emotions Cased by Olfactory Display　　　　　　　　　　　　　　　
  KAGEYAMA Haruka; MURAMATSU Keiichi; KAEDE Kazunori; WATANUKI Keiichi
  The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP, Volume：2020, Number：0, First page：1B02, 2020
  The olfactory brain that controls olfaction overlaps with the emotional brain that controls emotions, and is thought to have contributed greatly to the development of the emotional brain. Therefore, the sense of smell is considered to be more connected to emotions than other senses, and attention has been focused on manipulating the psychological state to a desirable state by using scent. However, it is thought that there is a gender difference in aroma. According to Oloveira et al., Women have a large number of neurons and neurons in the olfactory bulb, which play the role of receiving olfactory information, and women are superior in the smell separation test (1). Other studies have found that repeated exposure to odors increased olfactory sensitivity only in postpubertal women. From the previous case, it is considered that there is a gender difference in the intensity and type of emotion that occurs even when the same scent is presented. Therefore, in this study, we aimed to clarify the gender difference of psychological changes caused by scents.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeiip.2020.1B02
  DOI ID：10.1299/jsmeiip.2020.1B02, CiNii Articles ID：130007973829
• Machine Learning Approaches on Examination of Visual Fatigue Effect on Prefrontal Cortex Activity for LED Luminescent Sentence　　　　　　　　　　　　　　　
  NISHIKAWA Tomohiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi; MASHIKO Naoya
  The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP, Volume：2020, Number：0, First page：2A03, 2020
  This study aims to examine the relationship between visual fatigue and prefrontal cortex (PFC) activity during a backlit text reading task. We conducted a 10 min luminescent sentence reading task in a dark room. Time-course of oxy-Hb in the PFC was measured using a 22-channel wearable near-infrared spectroscope (NIRS). Subjective fatigue was assessed using the "Jikaku-sho shirabe" questionnaire. The critical flicker-fusion frequency (CFF) and LF/HF were assessed as objective index of fatigue and autonomic nervous system. 192 trials consisted of twelve healthy young volunteers and twelve LED treatments were analyzed. In the analysis, a linear non-gaussian acyclic (LiNGAM) model for causal discovery was introduced in addition to the correlation analysis. Our results suggested that the development of visual fatigue and central fatigue is related to the deactivation conditions in the medial PFC and Left PFC.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeiip.2020.2A03
  DOI ID：10.1299/jsmeiip.2020.2A03, CiNii Articles ID：130007973808
• Estimation of driving environment with mental strain using operation information of mobility scooter　　　　　　　　　　　　　　　
  KAEDE Kazunori; UTSUGI Masato; WATANUKI Keiichi; MURAMATSU Keiichi
  Transactions of the JSME (in Japanese), Volume：86, Number：892, First page：20, Last page：00162-20-00162, 2020
  

  Mobility scooters are three or four-wheeled electric-motor-driven wheelchairs with a handlebar for steering. In the use environment of a mobility scooter, there may be many obstacles that need to be avoided, such as pedestrians on a narrow sidewalk or cars on the edge of the road. These obstacles not only interfere with smooth driving but also induce mental strain on the user such as fear and anxiety, which may cause a decrease in comfort and an accident. The purpose of this study is to estimate physical obstacles in the road environment when driving a mobility scooter from operation information and physiological information of the user obtained during driving. We measured skin conductance, manipulation amount of accelerator, steering torque, and acceleration value in the horizontal plane when driving on a few courses with physical obstacles. We tried to build a machine learning model that estimates the type of physical obstacles in the course based on these time-series data by using a random forest classifier.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/transjsme.20-00162
  DOI ID：10.1299/transjsme.20-00162, CiNii Articles ID：130007961475
• Fatigue evaluation of colored LED backlit text based on prefrontal cortex activity measurement by Near-Infrared Spectroscopy　　　　　　　　　　　　　　　
  NISHIKAWA Tomohiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi; MASHIKO Naoya
  Transactions of the JSME (in Japanese), Volume：86, Number：890, First page：20, Last page：00034-20-00034, 2020
  

  This study aims to examine the benefit of visual fatigue evaluation based on prefrontal cortex (PFC) measurement by near infrared spectroscopy (NIRS), and to evaluate fatigue on various colored LED backlit text. In our method, eight adult participants read a LED backlit text 10 minutes in a dark room. Before and after task, subjective fatigue questionnaire "Jikaku-sho shirabe", subjective visual fatigue questionnaire (SVF), and the critical flicker-fusion frequency (CFF) were measured. The time-course of oxy-Hb in the PFC was measured using a 22-channel NIRS. Heart rate variability (HRV) was measured to access an autonomic nervous system balance. Six types of white LEDs were used for backlighting: general white as a control (W), high color-rendering white (WH), bluish white (WB), reddish white (WR), greenish white (WG), and yellowish white (WY). In our results, correlation analysis suggested that the development of central fatigue is related to deactivated condition in the mPFC, and the development of subjective visual fatigue is related to deactivated condition in the LPFC. In comparison between LED treatments, in WH condition, high subjective central fatigue, CFF decay and LF/HF were revealed, and the PFC inactivated. In WG condition, low subjective central fatigue and CFF decay revealed. Our findings suggested that participants get tired on high color-rendering white LED backlit text, and were less tired in greenish white LED backlit text. Also, NIRS provides benefits in the evaluation of visual fatigue.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/transjsme.20-00034
  DOI ID：10.1299/transjsme.20-00034, CiNii Articles ID：130007930459
• Influence of Initial Settings of Chaos Analysis on Fingertip Plethysmography for Evaluation of Emotions Induced by Exposure to Fragrance.　　　　　　　　　　　　　　　
  Tomofumi Sakata; Keiichi Watanuki; Keiichi Muramatsu; Kazunori Kaede
  2020 IEEE/SICE International Symposium on System Integration(SII), First page：590, Last page：595, 2020
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/SII46433.2020.9025903
  DOI ID：10.1109/SII46433.2020.9025903, DBLP ID：conf/sii/SakataWMK20
• Effects of Subjective Visual Fatigue on Brain Function During Luminescent Sentence Reading Task.　　　　　　　　　　　　　　　
  Tomohiro Nishikawa; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu; Naoya Mashiko
  2020 IEEE/SICE International Symposium on System Integration(SII), First page：390, Last page：394, 2020
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/SII46433.2020.9026251
  DOI ID：10.1109/SII46433.2020.9026251, DBLP ID：conf/sii/NishikawaWKMM20
• Effects of different Number of Chews and Chewing Frequency on Satiety　　　　　　　　　　　　　　　
  TAKAHASHI Kihiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：2403, Last page：2403, 2019
  

  Obesity has become a serious problem worldwide in the modern society with the change of food culture. Obesity would be a cause of many diseases such as hypertension, dyslipidemia and diabetes. Considering obesity, we examined satiety closely related to energy intake. In this study, we focused on the number of chews and chewing frequency, which are factors of satiety, and analyzed the influence on it. In the experiment, we compared satiety, hunger and masticatory muscle activity among the conditions when participants ate the same amount of food under the condition that the number of chews and the chewing frequency were changed. As a result, the datas of the increase rate of satiety and the masticatory muscle activity showed that participants of low weight and normal weight who consumed foods by chewing many times, and participants of obesity who consumed foods with large masticatory muscle activity for each chew could feel fullness earlier. Using this result, people can reduce the energy intake naturally by feeling fullness early in the diet, and it is expected to improve the eating habits of obese people.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.2403
  DOI ID：10.1299/jsmedsd.2019.29.2403, CiNii Articles ID：130007836247
• Development of a New Index for Lie Detection using Changes in Pupil Diameter　　　　　　　　　　　　　　　
  TAKAHASHI Ryota; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：2404, Last page：2404, 2019
  

  In recent years, new indicators focusing on cognitive activities have been developed for the purpose of improving the accuracy of lie detection tests. It has been pointed out that eye movement is particularly effective. In addition, there have been many reports of lie detection based on gaze movements and blinks. But these indicators are greatly influenced by human intentional control. In this study, we focus on the pupil diameter, which is difficult for humans to control intentionally. we verify whether it can be used a new index of lie detection method. In this experiment, we analyzed changes in pupil diameter when presenting a critical question and a non-critical question in a CIT issue. As a result, when the pupil diameter was dilated at the time of question presentation, the pupil diameter at the time of presentation of the critical question was smaller than that at the time of non-critical question presentation. This is because the cognitive load is suppressed by making the participants unaware of the contents when the critical question is presented. This result suggests that the pupil diameter can be used as a new index in the lie detection method.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.2404
  DOI ID：10.1299/jsmedsd.2019.29.2404, CiNii Articles ID：130007836246
• Evaluation of Effect on Psychological Emotions and Stress during Fragrance Exposure Using Fingertip Plethysmography　　　　　　　　　　　　　　　
  SAKATA Tomofumi; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：2402, Last page：2402, 2019
  

  When Fragrance influences the psychophysiological state of a person, and consequently the volume of fingertip plethysmography is affected by the aspiration of the aroma. Recently, studies have attempted to employ aroma in various scenarios, such as in smells for medical care, relaxation, environment improvement for productivity enhancement, and others. However, the type of fingertip plethysmograph behavior produced near the stimulation threshold that allows feeling the smell remains unclear, especially near the discrimination threshold, where fragrance intensity changes. In this study, the stimulation threshold at the time of aroma suction and the emotional change around the discrimination threshold are evaluated by analyzing both a questionnaire and fingertip plethysmograph measurement. As human biological systems produce chaotic behaviors such as heart beat rhythms and the plethysmograph, chaotic time series analysis was performed for fingertip plethysmograph measurements. Then, we evaluated psychophysiological responses during aroma suction, using a feature of the chaotic behavior in fingertip plethysmograph. In addition, we analyzed and compared with the conventional method LF / HF. As a result, we confirmed the fluctuation in the fingertip plethysmograph even when the research participants responded that it did not smell in the subjective evaluation. Further, we confirmed the fluctuating tendency of the fingertip plethysmographs when the Largest Lyapunov exponent increased as the aroma hen the maximum Lyapunov exponent increased as the aroma the fluctuation of the fingertip plethysmographs becomes large and corresponds to the uncomfortable values in from the subjective evaluation. In addition, the relaxing effect by smell was confirmed using LF / HF.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.2402
  DOI ID：10.1299/jsmedsd.2019.29.2402, CiNii Articles ID：130007836242
• Explanation of Cognitive Load on Brain Activity during Auditory Stroop Task using LRP　　　　　　　　　　　　　　　
  NISHIKAWA Tomohiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：2401, Last page：2401, 2019
  

  This study aims to examine the time-series effect of cognitive load on the cerebral blood flow. We used machine learning to extract features related to cognitive load in any brain region and time domain of oxy-Hb measured by NIRS. We conducted a 5min auditory stroop task. Ten healthy young volunteers participated in this study and performed five repeated experiments. The brain function in the prefrontal cortex was measured using 22ch wearable near-infrared spectroscopy. Cognitive load was assessed using questionnaire surveys NASA-TLX and accuracy. The results of analysis using neural network (NN) and layer-wise relevance propagation (LRP) suggest that around the inferior frontal gyrus (IFG) contain important features for classifying cognitive load, and oxy-Hb in IFG may increase with cognitive load. Our LRP method can extract common features to oxy-Hb within the same group, visualize the effect of cognitive load on individual data.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.2401
  DOI ID：10.1299/jsmedsd.2019.29.2401, CiNii Articles ID：130007836241
• Effect of Input Image Size on the Cancer Cells Identification in Pathological Image　　　　　　　　　　　　　　　
  HARA Ryosuke; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi; KAZAMA Shinsuke
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：2207, Last page：2207, 2019
  

  In this research, we conducted to generate Convolutional Neural Network (CNN) models which can distinguish between cancer cells and normal cells in the large intestine under 11 input image size (number of pixels) conditions (50×50 px, 100×100 px, 200×200 px, 300×300 px, 400×400 px, 500×500 px, 600×600 px, 700×700 px, 800×800 px, 900×900 px, 1000×1000 px) for the purpose of clarifying the effect of the input image size on the cancer cells identification in colorectal cancer pathology image. When we conducted to train models, we calculated model accuracy by 5-fold cross validation in each condition. As a result, the accuracy rate increased as input image size increased in 3 conditions (50×50 px, 100×100 px, 200×200 px). However, the accuracy rate of the model trained by 4 conditions (700×700 px, 800×800 px, 900×900 px, 1000×1000 px) were lower than that trained by other conditions. These results are thought to be caused by setting the kernel size to the same value in all conditions. Therefore, we concluded that it is necessary to determine an appropriate kernel size and stride for each input image size which can extracted features included in the input image when we conduct to generate a model for the purpose of distinguish between cancer cells and normal cells in the large intestine.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.2207
  DOI ID：10.1299/jsmedsd.2019.29.2207, CiNii Articles ID：130007836190
• Prediction of Driving Behavior Based on Seat Pressure and Driving Information　　　　　　　　　　　　　　　
  OGAWARA Yuya; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：1410, Last page：1410, 2019
  

  In recent years, the number of traffic accidents has decreased due to the development of driving support systems. Driving assistance system supports to the driver, however when driving assistance is not appropriate, the driver may be bothered by the assistance and distrusted of the system. In order to provide appropriate support, a method that driver behavior prediction has been proposed. In this research, we measured seat pressure distribution and driving information using a driving simulator, and predicted driving behavior using a convolutional neural network. In this research, we predicted five driving behaviors: "Go straight ahead", "Turn right", "Turn left", "right lane change", and "left lane change". As a result, it was possible to predict with an accuracy of 65.4% in inter participant evaluation and 96.4% in overall evaluation.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.1410
  DOI ID：10.1299/jsmedsd.2019.29.1410, CiNii Articles ID：130007836167
• Classification and Features Visualization of Gait Using Convolutional Neural Network for Gait Feedback Training Optimized for Individuals　　　　　　　　　　　　　　　
  OSAWA Yusuke; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：1409, Last page：1409, 2019
  

  In this research, to develop a gait feedback training system optimized for individuals where trainees can efficiently train features that do not satisfy ideal walking using a deep learning, we examine classification and features visualization of gait using Convolutional Neural Network (CNN) and Grad-CAM. In the experiment, the thumb-floor distance of right foot was measured when young people walked normally and when they walked with a brace, to limit their movement. Further, these data were clustered to 3 clusters using k-shape method. And these data were learned and classified as input data and using these cluster as the label. As the result, the accuracy was 86.07%. In addition, the part where the feature in thumb-floor distance appears were visualized as heat map using Grad-CAM and it is confirmed that usefulness for gait training.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.1409
  DOI ID：10.1299/jsmedsd.2019.29.1409, CiNii Articles ID：130007836166
• Estimation of driving environment with mental strain using operation information of mobility scooter　　　　　　　　　　　　　　　
  KAEDE Kazunori; UTSUGI Masato; WATANUKI Keiichi; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：1414, Last page：1414, 2019
  

  Mobility scooters are three or four-wheeled electric-motor-driven wheelchairs with a handlebar for steering. In the use environment of a mobility scooter, there may be many obstacles that need to be avoided, such as pedestrians on a narrow sidewalk or cars on the edge of the road. These obstacles not only interfere with smooth driving but also induce mental strain on the user such as fear and anxiety, which may cause a decrease in comfort and an accident. The purpose of this study is to estimate physical obstacles in the road environment when driving a mobility scooter from operation information and physiological information of the user obtained during driving. We measured skin conductance, manipulation amount of accelerator, steering torque, and acceleration when driving on a course with physical obstacles. We tried to build a model that estimates the type of physical obstacles in the course based on these time-series data by using a random forest, which is one of the machine learning methods.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.1414
  DOI ID：10.1299/jsmedsd.2019.29.1414, CiNii Articles ID：130007836163
• Behavioral visualization of nicotine in tobacco smoke in simulated space　　　　　　　　　　　　　　　
  MATSUMOTO Mariko; SAKATA Tomofumi; KUBOTA Koki; TOKONABE Kota; YOSHIZAWA Akira; UKAI Katsumi; MURAMATSU Keiichi; KAEDE Kazunori; WATANUKI Keiichi
  The Proceedings of Design & Systems Conference, Volume：2019, Number：0, First page：2208, Last page：2208, 2019
  

  Smoke separation is accelerating towards the Tokyo Olympics and Paralympics. However, there is no method for monitoring harmful chemical substances in tobacco smoke in real-time, so there are scientific lacks against non-smokers health whether the smoke separated space have no impact or not to their health. The main chemical substance in tobacco smoke is nicotine. We decided to build up a model first for nicotine. In this study, we use a newly developing gas analyzer which measures nicotine in real-time. From that nicotine measurement result, analyzes the nicotine behavior with FEM in a simulated space. Then make it learn the parameters of the nicotine behavior model, and using a different modeling and learning algorithm than general multi-agent reinforcement learning, we visualize the nicotine behavior in tobacco smoke through the new achieving model. First, we confirmed the availability of nicotine analysis with the gas analyzer.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2019.29.2208
  DOI ID：10.1299/jsmedsd.2019.29.2208, CiNii Articles ID：130007836152
• Face Landmark Analysis for Emotion Discrimination on Fake Smile Expressing just after Watching Emotion-eliciting Film　　　　　　　　　　　　　　　
  SAITO Naoto; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2019, Number：0, First page：S12103P, 2019
  

  The purpose of this study is to clarify feature for discriminating emotion while expressing fake smile. First, we experimented to record face expression in video. The flow of the experiment was following; we first displayed one of emotion-eliciting films, and participant expressed (fake) smile just after watching the film. At the end of the experiment, we let them assess what emotion they felt with two self-report measures. We prepared six emotion-eliciting films in order to record various face expression with various emotion. Then, we obtained face landmark positions from the face on the recorded video using a method proposed by Kazemi et al⁽¹⁾. We focused that eyes and mouth corners move well while smiling, and defined 15 feature values related to that landmarks. Furthermore, we grouped the feature values in emotion scores by clustering. There are significant differences in eye area between happiness and disgust, and in some mouth corners' feature values between happiness and fear as a result of comparison of clusters. we considered these differences resulted from disgust/fear, but negative emotion.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2019.S12103P
  DOI ID：10.1299/jsmemecj.2019.S12103P, CiNii Articles ID：130007816926
• Measurement of the Attention Effect of the Fraser-Wilcox Illusion Applied to Caution Making by Pre-cueing Task　　　　　　　　　　　　　　　
  TOKONABE Kota; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2019, Number：0, First page：S11114, 2019
  

  The caution making is used in various daily situations as a preventive measure of tumble accident which is one of the labor accidents. The purpose of this study is to propose a display that incorporates the Fraser-Wilcox illusion and has a higher attention effect. Fraser-Wilcox illusion is a type of visual illusion in which a part of a still image appears to be moving. We compare the attention effects of shapes that induce the Fraser-Wilcox illusion and those that do not. As an evaluation method of attention recall effect, the pre-cueing task which was an experimental technique to measure the characteristics of visual attention was used. The correlation between the amount of visual illusion and the target reaction time was examined. As a result, a strong negative correlation was observed. The larger the amount of visual illusion, the faster the detection of the target. These results suggest that the Fraser-Wilcox illusion has an alerting effect on visual illusion.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2019.S11114
  DOI ID：10.1299/jsmemecj.2019.S11114, CiNii Articles ID：130007816901
• Condition Evaluation of Used shoes using Convolutional Neural Network and Classification Tree　　　　　　　　　　　　　　　
  TANAMOTO Yuta; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2019, Number：0, First page：S11103, 2019
  

  The purpose of this study is to estimate the condition of second-hand goods from images using machine learning methods. Assuming that the condition evaluation of second-hand goods has a relationship with the damage that exists in them, we proposed and verified a method to estimate the condition of second-hand goods based on information of the damage. In this study, we chose men's dress shoes for condition evaluation and chose four types of damage: wrinkles, worn out of heel, dirt on outsole, dirt on inside as damage considered to be related to condition evaluation. (1)We create a CNN model that determines the presence or absence of damage, and (2) create a classification tree model that evaluates the state of the product from information on the presence or absence of damage and (3)We evaluated the condition of second-hand goods by combining two created models. As a result of verification, it was shown that the proposed method could evaluate the condition of used goods.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2019.S11103
  DOI ID：10.1299/jsmemecj.2019.S11103, CiNii Articles ID：130007816826
• The influence of warning method on driver response at switching of automatic/manual operation　　　　　　　　　　　　　　　
  SATO Hayata; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2019, Number：0, First page：J18105, 2019
  

  Warning at the time of switching from automatic to manual operation of vehicle is required to assist the driver appropriately. In this research, we focus on the driver's immersion in typing with a personal computer during automatic driving. We examined changes in driving operation after switching to manual operation when the warning sound is presented under four conditions including two conditions of beep sound and two conditions of presentation voice. The beeper was able to react quickly but it was found to be dangerous for driving operations. In voice presentation, it was suggested that a warning simply presented could not assist appropriately but presenting hazard avoidance instruction enabled quick reaction and assisted in calm driving behavior.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2019.J18105
  DOI ID：10.1299/jsmemecj.2019.J18105, CiNii Articles ID：130007816472
• The effect of 3D guiding sound and ambient sound for straight walking　　　　　　　　　　　　　　　
  TSUKADA Shigekimi; WATANUKI Keiichi; MURAMATSU Keiichi; KAEDE Kazunori
  The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP, Volume：2019, Number：0, First page：1B04, 2019
  Currently, the visually impaired find it difficult to use mobility support facilities because they depend on ambient environment such as ambient sound and snow cover. Further, people who acquired visual impairment in the later stages of life also find it difficult to use these facilities. Therefore, in this study, we aimed to develop a walking guidance system using 3D sounds that will not be influenced by the surrounding environment and will be easy to use. Further, we verified the induction effect in the blindfold state and the ambient sound. This system was implemented with a head mount display that is capable of producing 3D sound. Under a visual restriction environment, blindfolded participants were asked to walk toward a real or 3D guiding sound with three types of ambient sounds, and then, we measured the walking locus. We found that the 3D sound tends to provide veering tendency opposite of the ambient sound. However, the guiding accuracy of the 3D sound is similar to that of real sound.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeiip.2019.1B04
  DOI ID：10.1299/jsmeiip.2019.1B04, CiNii Articles ID：130007713510
• Evaluation of the Effect of the Amount of Information on Cognitive Load by Using a Physiological Index and the Stroop Task　　　　　　　　　　　　　　　
  Yushi Hashimoto; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  ADVANCES IN AFFECTIVE AND PLEASURABLE DESIGN, Volume：774, First page：85, Last page：93, 2019
  There have been several recent attempts to aid car drivers by providing information on internal and external car environments. The optimal amount of information must be determined to avoid confusion. In this study, the "Stroop task" was used for information processing, and the cognitive load was gradually increased by adding information in stages. We designed and conducted two tasks that originate in the "Stroop task"; these two tasks feature significant differences in cognitive load. We also measured brain activity using near-infrared spectroscopy (NIRS) under the assumption that such activity can be used as an index of cognitive load. Both tasks were associated with increased oxy-hemoglobin levels in the prefrontal area, and the task with a higher cognitive load was associated with a more substantial increase in oxy-hemoglobin; this indicates that oxy-hemoglobin levels may be used as an objective index for the evaluation of information-associated cognitive load.
  SPRINGER INTERNATIONAL PUBLISHING AG, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-94944-4_10
  DOI ID：10.1007/978-3-319-94944-4_10, ISSN：2194-5357, eISSN：2194-5365, Web of Science ID：WOS:000464092300010
• Examination of the Brain Areas Related to Cognitive Performance During the Stroop Task Using Deep Neural Network　　　　　　　　　　　　　　　
  Tomohiro Nishikawa; Yushi Hashimoto; Kosei Minami; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  ADVANCES IN AFFECTIVE AND PLEASURABLE DESIGN, Volume：774, First page：94, Last page：101, 2019
  To examine brain areas related to the cognitive load condition during the Stroop task, we proposed a method using a Deep Neural Network (DNN). We acquired cerebral blood flow data in congruent and incongruent tasks by near-infrared spectroscopy (NIRS) equipped with 22 ch. The data were used to train a DNN, and the influence of each factor on the output was evaluated. Our DNN model consists of independent input layers for each channel of NIRS, as well as fully-connected hidden layers and output layers. Our results suggest that the medial prefrontal cortex (focusing on cognition) and the left inferior frontal gyrus (focusing on language processing) were involved in the cognitive load during the Stroop task. These results in the Stroop task were consistent. Therefore, the proposed method's utility was confirmed.
  SPRINGER INTERNATIONAL PUBLISHING AG, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-94944-4_11
  DOI ID：10.1007/978-3-319-94944-4_11, ISSN：2194-5357, eISSN：2194-5365, Web of Science ID：WOS:000464092300011
• Real-time emotion recognition system with multiple physiological signals　　　　　　　　　　　　　　　
  Jyun-Rong Zhuang; Ya-Jing Guan; Hayato Nagayoshi; Keiichi Muramatsu; Keiichi Watanuki; Eiichiro Tanaka
  JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING, Volume：13, Number：4, 2019
  Emotion is an internal and subjective experience that plays a significant role in human life. There are several methods of recognizing emotions in people, the most authentic of which is using physiological signals, as they are beyond one's control and strongly correlated with human emotions. This study aims to develop an emotion recognition system based on three physiological signals, namely, brainwave, heartbeat, and facial muscular activity. It utilizes deep neural network (DNN) and the T method of Mahalanobis-Taguchi system (MTS) to process the multiple physiological signals and further recognize the states of human emotion. As such, nine emotions are effectively recognized on a two-dimensional model through the DNN, then compared against several other algorithms, such as MTS, SVM, Naive Bayes, and K-means, where its superior accuracy is validated. Moreover, although the T method only improves the classification accuracy on the valence state, it rather obtains the intensity of emotion in different states. Furthermore, in this study, the proposed DNN is implemented into a wide range of applications for an accurate understanding of the human emotional states, whereas the T method is utilized to respond to the emotional intensity in different states. Finally, a real-time emotion recognition system is developed with DNN as the classifier; this system can directly monitor the variation of the human emotion through reliable and objective emotion analysis results from the physiological signals. Thus, the method can provide useful treatment effect information for robots or assistive apparatus serving activities of daily living.
  JAPAN SOC MECHANICAL ENGINEERS, English, Scientific journal
  DOI：https://doi.org/10.1299/jamdsm.2019jamdsm0075
  DOI ID：10.1299/jamdsm.2019jamdsm0075, ISSN：1881-3054, Web of Science ID：WOS:000505034300007
• Analysis of Skin Conductance Reaction Related to Mental Stress Due to Corner Entry Speed of Mobility Scooter.　　　　　　　　　　　　　　　
  Kazunori Kaede; Masato Utsugi; Keiichi Watanuki; Keiichi Muramatsu
  2019 IEEE International Conference on Systems, Man and Cybernetics(SMC), First page：3430, Last page：3434, 2019
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/SMC.2019.8913915
  DOI ID：10.1109/SMC.2019.8913915, DBLP ID：conf/smc/KaedeUWM19
• Kansei Evaluation of Object-based Three-Dimensional Sound for Visual Impairments.　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Shigekimi Tsukada; Kazunori Kaede; Keiichi Watanuki
  2019 IEEE International Conference on Systems, Man and Cybernetics(SMC), First page：3205, Last page：3209, 2019
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/SMC.2019.8914603
  DOI ID：10.1109/SMC.2019.8914603, DBLP ID：conf/smc/MuramatsuTKW19
• Chaotic Analysis of Finger Plethysmograms for Evaluation Emotion Induced by Exposure to Fragrance.　　　　　　　　　　　　　　　
  Tomofumi Sakata; Keiichi Watanuki; Keiichi Muramatsu; Kazunori Kaede
  2019 IEEE International Conference on Systems, Man and Cybernetics(SMC), First page：1125, Last page：1129, 2019
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/SMC.2019.8914602
  DOI ID：10.1109/SMC.2019.8914602, DBLP ID：conf/smc/SakataWMK19
• Study on Gait Discrimination Method by Deep Learning for Biofeedback Training Optimized for Individuals.　　　　　　　　　　　　　　　
  Yusuke Osawa; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Intelligent Human Systems Integration 2019 - Proceedings of the 2nd International Conference on Intelligent Human Systems Integration, IHSI 2019: Integrating People and Intelligent Systems(IHSI), First page：155, Last page：161, 2019
  Springer, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-11051-2_24
  DOI ID：10.1007/978-3-030-11051-2_24, DBLP ID：conf/ihsi/OsawaWKM19
• Pupil Size as Input Data to Distinguish Comprehension State in Auditory Word Association Task Using Machine Learning.　　　　　　　　　　　　　　　
  Kosei Minami; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Intelligent Human Systems Integration 2019 - Proceedings of the 2nd International Conference on Intelligent Human Systems Integration, IHSI 2019: Integrating People and Intelligent Systems(IHSI), First page：123, Last page：129, 2019
  Springer, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-030-11051-2_19
  DOI ID：10.1007/978-3-030-11051-2_19, DBLP ID：conf/ihsi/MinamiWKM19
• Construction of a Multiple Driving Affective Scale　　　　　　　　　　　　　　　
  Masanori Matsuoka; Keiichi Muramatsu; Kazunori Kaede; Keiichi Watanuki; Toshihiro Shiimado; Yukio Nishizawa
  SAE Technical Papers, Volume：2018-October, Number：October, Oct. 2018
  The authors' goal is to develop brakes that are more satisfying to users in sensory aspects by explaining the relationship between people's state of mind and a vehicle's physical quantities. However, there are no scales to measure such feeling. In this study, a psychological scale was constructed to measure the affective state of general automobile drivers, for the purpose of clarifying the effects of brake characteristics on the affective state. To construct the affective scale, two experiments were conducted. In the first experiment, a comparison of four types of vehicles was performed and then an interview survey was conducted to collect a broad sample of terms used to evaluate the affective state. From the results, it was hypothesized that the evaluation terms were divided into eight categories. For each hypothesized category, ten evaluation terms were selected from the terms obtained in the interviews, the items of the existing psychological evaluation scale, and the synonym survey results of them. In the second experiment, we evaluated terms we selected to conduct an assessment of 15 types of driving scenarios that were selected from among brake evaluation patterns. Next, we conducted a factor analysis using the assessment results. As a result, the affective states were classified according to seven factors (Well-Being, Anxiety and Surprise, Liveliness, Positive Feelings, Disgust, Boredom, and Concentration), with five items attached to each factor, yielding a total of 35 items. The reliability and the validity of each scale were investigated. Results have shown that the subscales have highly internal consistency and factorial validity.
  International conference proceedings
  DOI：https://doi.org/10.4271/2018-01-1888
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85054006437&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85054006437&origin=inward
  DOI ID：10.4271/2018-01-1888, eISSN：0148-7191, SCOPUS ID：85054006437
• Comparison of implicit and explicit preference toward multiple colour combinations
  Keiichi Muramatsu; Siyuan Fang; Kazunori Kaede; Eiichiro Tanaka; Keiichi Watanuki; Tatsunori Matsui
  International Journal of the Digital Human, Volume：2, Number：1/2, First page：45, Last page：45, 2018
  Inderscience Publishers, Scientific journal
  DOI：https://doi.org/10.1504/ijdh.2018.096288
  DOI ID：10.1504/ijdh.2018.096288, ISSN：2046-3375, eISSN：2046-3383
• Walking assistive apparatus for gait training patients and promotion exercise of the elderly　　　　　　　　　　　　　　　
  Eiichiro Tanaka; Keiichi Muramatsu; Keiichi Watanuki; Shozo Saegusa; Louis Yuge
  Wearable Exoskeleton Systems: Design, control and applications, First page：255, Last page：290, Jan. 2018
  This chapter presents authors development work on walking assistant exoskeletons for gait training of patients and promotion exercise of the elderly. The first exoskeleton is a whole leg assisting device using a special parallel link mechanism. For gait training of motor palsy patients, a weight bearing lifter was attached, and an impedance control was tuned by using frequency entertainment. For the elderly, a torque controller taken into account the dynamics of both a user and the apparatus with real time acceleration data is developed. The second exoskeleton is a whole body assisting suit was developed by adding arm assistance to the whole leg apparatus. By assisting not only legs but also swinging arms, an increased cerebral activity of all areas can be expected via rehabilitation with the whole body exoskeleton. Finally, we developed a close-fitting type exoskeleton assisting only ankle joint, which leads to a product RE-Gait® in 2016. By utilizing the structure of bi-articular muscle and physiological phenomenon of stretch reflex, the user’s leg can be raised assisting only ankle joint. Experiments with by hemiplegic patients are enclosed, which show that abduct variation of the hip joint is decreased while the stride length is increased by using the device.
  In book
  DOI：https://doi.org/10.1049/PBCE108E_ch11
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85117995919&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85117995919&origin=inward
  DOI ID：10.1049/PBCE108E_ch11, SCOPUS ID：85117995919
• Evaluation of Mental Stress against Corner Entry Speed with Mobility Scooter Using Skin Conductance　　　　　　　　　　　　　　　
  UTSUGI Masato; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2018, Number：0, First page：3204, Last page：3204, 2018
  In this paper, we evaluated the mental stress recorded against corner entry speed while riding a mobility scooter by measuring skin conductance. A mobility scooter is a four-wheel electric wheelchair with a steering handle. These scooters, known as “Senior Car” are generally sold to the elderly. Some of these scooters have a system that automatically decelerates to approximately 70% of the maximum speed depending on the steering angle at corners. The preset deceleration rate can cause discomfort to the driver. To provide appropriate assistance without any discomfort, evaluating the mental stress of the driver is necessary. Skin conductance (SC) is one method for measuring sweating. It can measure mental sweating related to sympathetic nerve activity. We modified a commercially available mobility scooter to be used as an experimental wheelchair such that it can be controlled using a PC. We measured SC in a task that involved turning right into a corner at a constant speed using an experimental wheelchair and tried to evaluate the mental stress against the corner entry speed. Resultantly, a positive correlation between the amplitude of SC and entry speed was obtained. In addition, we performed a questionnaire to evaluate the ride discomfort after the experimental task. The questionnaire results demonstrate that the evaluation value of the items “No Fear” and “Safety” decreased as the speed increases. This result was consistent with the measurement results of the SC amplitude. From these results, we conclude that fear against corner entry speed could be evaluated using SC.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2018.28.3204
  DOI ID：10.1299/jsmedsd.2018.28.3204, CiNii Articles ID：130007654420
• Preliminary Study on Pupil Size and Blink Rate in Auditory Word Association Task　　　　　　　　　　　　　　　
  MINAMI Kosei; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2018, Number：0, First page：3205, Last page：3205, 2018
  In recent times, robots such as, service, communication, and cooperative robots, have been developed to assist humans in various tasks. Smooth communication is an important parameter to ensure appropriate assistance by robots. In communication, understanding the comprehension status of the partner leads to an easy-to-understand explanation. However, it is difficult to accurately understand the comprehension status of the partner. The purpose of this study is to clarify the relationship between thinking status and pupil size and blink rate. Word association tasks were conducted, wherein subjects associated a theme from five auditory words. Pupil size and blink rate were measured during the task using gaze measurement. The result showed that pupil size tended to increase during thinking and decrease with association. Decrease in blink rate distribution was observed after presentation of a word, following which a temporary peak occurred before association. However, no change in blink rate was observed after the association. Based on the results of the present study, it was revealed that thinking may be associated with pupil size and blink rate, and it can be suggested that the eye could be an index to evaluate thinking status.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2018.28.3205
  DOI ID：10.1299/jsmedsd.2018.28.3205, CiNii Articles ID：130007654419
• Evaluation of Cognitive Load Level Following Change of Amount of Information in Stroop task by Cerebral Blood Flow Measurement　　　　　　　　　　　　　　　
  HASHIMOTO Yushi; WATANUKI Keiichi; MURAMATSU Keiichi; KAEDE Kazunori
  The Proceedings of Design & Systems Conference, Volume：2018, Number：0, First page：3206, Last page：3206, 2018
  Determination of the optimal amount of information is essential to avoid confusion. In this study, the “Stroop task” was used for information processing, and the cognitive load was gradually increased by sequential adding of information. We designed and conducted two tasks that originate in the “Stroop task;” these two tasks feature significant differences in cognitive load. We also measured brain activity using near-infrared spectroscopy (NIRS) under the assumption that such activity could be used as an index of cognitive load. Both tasks were associated with increased oxy-hemoglobin levels in the prefrontal area, and the task with a higher cognitive load was associated with a more substantial increase in oxy-hemoglobin; this indicates that oxy-hemoglobin levels may be used as an objective index for the evaluation of information-associated cognitive load. In addition, this study included two groups (Group A and B) of patients who undertook the tasks. Based on the timing and the number of mistakes, it was observed that subjects in group A demonstrated lesser information processing ability than those in group B. The findings of the present study thus indicate that oxy-hemoglobin variation may depend on the information processing ability of the subject.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2018.28.3206
  DOI ID：10.1299/jsmedsd.2018.28.3206, CiNii Articles ID：130007654418
• Estimation Method of Energy Metabolism using Surface Electromyogram of the Upper Arm and Forearm during Wrist Curl　　　　　　　　　　　　　　　
  HAYASAKA Hideaki; WATANUKI Keiichi; KAEDE Kazunori; MURAMATHU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2018, Number：0, First page：3207, Last page：3207, 2018
  It is important to mesure energy metabolism for human health. Current mainstream activity meters show large inaccuracies in the estimation of energy metabolism for small mothion. In this study, we examined the estimation method of energy metabolism during exercise with small motion by using electromyography and heart rate, both of which are correlated with energy metabolism. We chose wrist curl a type muscular strength training to represent movement with small motion, and considered the flexor carpi radials and biceps brachii as target muscles. Multiple regression analysis was used to estimate energy metabolism; this allowed us to estimate that there is an error of about 25% when estimating total energy metabolism. Although comparison was carried out at ten-second intervals, estimation was difficult because of the large variation of experiment values. This study suggests that total energy metabolism during exercise with small motion can be estimated by using myoelectric potentials and heart rate.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2018.28.3207
  DOI ID：10.1299/jsmedsd.2018.28.3207, CiNii Articles ID：130007654417
• Measurement of Braking and Driving Forces during Walking on Virtual Slope　　　　　　　　　　　　　　　
  ISHIZAKA Norihiro; OSAWA Yusuke; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2018, Number：0, First page：1206, Last page：1206, 2018
  At nursing care sites, patients undergo an exercise regimen as rehabilitation and training for walking disorders. However, it is presumed that their motivation decreases over time because in a nursing home, walking exercises are performed in a closed space and are repetitions of monotonous movements. Therefore, it is necessary to develop a more varied and effective rehabilitation or training method. The purpose of this study is to develop a varied and effective training method wherein the trainee walks while viewing virtual reality (VR) images. Specifically, in the proposed method, the trainee views VR images of walking on a slope, while actually walking on a treadmill, and he/she controls the physical load. In this study, we conducted an experiment using a composed training system with the aim of analyzing the influence of watching VR imagery of walking on a slope on the braking and driving forces while walking on a horizontal treadmill. We improved the VR system to automatically adjust the treadmill speed from the position information of the trainee. Then, comparative experiments of the braking and driving forces were performed for cases of walking while watching images of level and slope grounds. As a result, the walking speed, braking force, and driving force tended to decrease when watching downward slope images compared to watching level ground images. Additionally, the walking speed, braking force, and driving force tended to increase when viewing upward slope images.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2018.28.1206
  DOI ID：10.1299/jsmedsd.2018.28.1206, CiNii Articles ID：130007654268
• Learning Cutting Skills Through a Support System Using a VR-HMD:(Teaching in the Processing Preparatory Work)　　　　　　　　　　　　　　　
  MENDORI Itaru; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Design & Systems Conference, Volume：2018, Number：0, First page：1302, Last page：1302, 2018
  Students in many universities, technical colleges, and technical high schools are practicing their cutting skills using general-purpose machining tools. However, there may be insufficient guidance due to the lack of the number of instructors and a limitation on the number of general-purpose machining tools that they can use. In this research, we propose a system to support the learning of cutting skills using a virtual reality head-mounted display. Preparing students to use machining tools require many training sessions, especially for cutting using a general-purpose lathe. A user can experience three types of content: drawing, tools, and the general-purpose lathe. This learning system was provided to seventeen students, and we conducted a questionnaire on its ease of understanding, appearance, enjoyability, intuitiveness, and operability. Resultantly, enjoyability and intuitiveness were highly evaluated. The results suggest that our proposed system can be used as a learning method. To improve the operability of the VR system, we can make use of specialized controllers or additional force presentation devices.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2018.28.1302
  DOI ID：10.1299/jsmedsd.2018.28.1302, CiNii Articles ID：130007654262
• Factorial analysis of stumbling using evaluation of lower limb trajectory and ground reaction force during walking　　　　　　　　　　　　　　　
  OSAWA Yusuke; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1210204, 2018
  

  It is generally agreed that the risk of falling increases with age. Falls in elderly individuals decrease their daily life activity level due to physical damage and increase fear of falling again. It is proposed that many elderly falls occur when walking, and in most, the cause is stumbling. Therefore, the aim of this study was to analyze the factors of stumbling during normal walking to prevent falls. Then we determined the thumb-floor distance, the angle of lower limb joints and the ground reaction forces. Furthermore, we calculated the moments of the lower limb joints from the obtained results. And compared these values during normal walking between elderly group and young group. Consequently, a significant positive correlation was found between the maximum value of the longitudinal component of ground reaction force and the maximum value of thumb-floor distance at terminal swing. Furthermore, when the longitudinal component of ground reaction force was the maximum, the hip flection moment of the elderly group was significantly lower than young group. These results showed that the cause of the fall of elderly is that the driving force at terminal stance is weak due to weak hip flexion muscles and that the knee joint is not sufficiently extended at terminal swing.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1210204
  DOI ID：10.1299/jsmemecj.2018.S1210204, CiNii Articles ID：130007620178
• The Effect of Difference in timbre on Recognition and Impression of Notification sound　　　　　　　　　　　　　　　
  TAKAHASHI Ryota; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1210203, 2018
  

  In recent years, it is required to design a notification sound which is easy to hear even in the daily life sound. It is necessary for the notification sound to use sound of frequency below 2000 Hz that the elderly can hear easily. Therefore, in this research, we aimed to evaluate how the influence on the recognition and impression of the notification sound is caused by the difference in the timbre. In this experiment, the participants heard three kinds of timbre of sine wave, rectangular wave and sawtooth wave. The threshold of listening sound pressure level was measured, and the questionnaire to evaluate impression of notification sound by semantic difference method was conducted. As a result, we found that the sine wave is familiar and does not give much tension or discomfort. In addition, we found that the rectangular wave and the sawtooth wave are less familiar and give a sense of urgency and discomfort. It was suggested that by changing the timbre of the notification sound, it is possible to design a notification sound that the intention is more easily heard and accurately transmitted.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1210203
  DOI ID：10.1299/jsmemecj.2018.S1210203, CiNii Articles ID：130007620171
• Development of the Pulse Rate Measurement with the Neck Using the Acceleration Sensor　　　　　　　　　　　　　　　
  IKEDA Akira; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1210202, 2018
  

  Demand for vital sign measurement systems have been increasing. Non-invasive systems are required that it can monitor health status over a prolonged period. Conventional devices can easily measure pulses. However, as the noise due to perspiration is superimposed on the waveform of the pulse, the peak of the pulse becomes unclear, so it is unsuitable for measurement for a long time. In this study, we devised a pulse measurement method that can deal with the above problem. We obtained the acceleration waveform from the carotid artery skin surface, using the acceleration sensor. These waveforms are pulse waves caused by the expansion and contraction of the carotid artery. By the measurement procedure that they devised, six of ten people were able to be measured the pulse. In addition, it became possible to measure the pulse by other four people straightening the neck and attached the sensor to the appropriate position carefully.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1210202
  DOI ID：10.1299/jsmemecj.2018.S1210202, CiNii Articles ID：130007620170
• Detection and Cause Estimation of Abnormality for Rotating Machinery using Convolutional Neural Network　　　　　　　　　　　　　　　
  HARA Ryosuke; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1110605, 2018
  

  In recent years, various researches on abnormality detection using machine learning have been conducted. However, when an abnormality is detected, it is necessary for engineers to find the cause of the abnormality and deal with it. If it is possible to estimate the cause of the abnormality at the time of detection, engineers can prepare appropriate repair tools and replacement parts. Machine downtime can be shorten by this estimation. In this research, we proposed new method and conducted experiment to verify its usefulness. In the proposal method, we use convolution neural network (CNN) to detect an abnormality and estimation a cause of it. Operating sound and current value were used for input. In the experiment, we chose geared motors as a model of a rotating machinery, and we used proposed method to them. As a result, we got an average accuracy rate of 82.41% on detection of abnormality, and also got average accuracy 67.84% on cause estimation of it. From these results, it was shown that the proposed method is effective for detection of abnormality and cause estimation of it for rotating machinery.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1110605
  DOI ID：10.1299/jsmemecj.2018.S1110605, CiNii Articles ID：130007620092
• Increasing the number of Mastication by Mastication Sound　　　　　　　　　　　　　　　
  TAKAHASHI Kihiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1110501, 2018
  

  In recent years, it has been said that the number of mastication and mealtime tends to decrease with the spread of fast foods and softening of foods. Decrease in the number of mastication causes many problems such as obesity, shrinkage of the jaw, loss of natural teeth. In this study, we examined a method to increase the number of mastication by changing the subjective texture of food by presenting mastication sound with bone conduction headphones when chewing food, based on a cross-modal. Moreover, we investigated what kind of mastication sound is effective for increasing the number of mastication from the viewpoint of texture. The result showed that there was a possibility of increasing the number of mastication. On the other hand, a certain result was not obtained with regard to the texture, because the texture which has the correlation with the number of mastication was different depending on the food. However, as the result of a questionnaire of the texture, the correlation between the texture of heavy and the number of mastication was found. Therefore, we confirmed the possibility of increasing the number of mastication by controlling the subjective heaviness of food.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1110501
  DOI ID：10.1299/jsmemecj.2018.S1110501, CiNii Articles ID：130007620081
• Investigation of effectiveness of sound image movement for cognitive support during driving　　　　　　　　　　　　　　　
  OGAWARA Yuya; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1110104, 2018
  

  In recent years, cognitive support research has been conducted to reducing the number of traffic accidents. There is a possibility of confusing the driver if the cognitive support is not appropriate. Therefore, there is a need for a method to support driver's perception of dangerous objects without hindering normal driving behavior. In this study, we measured driving behavior and cerebral blood flow when moving sound was used as cognitive support. By using the moving sound as the cognitive support, the brake operation at the time of avoiding the danger became moderate. From the results of cerebral blood flow, it was found that information can be transmitted with the same cognitive load as in normal operation. As a result, the possibility that the moving sound can appropriately assist perception of the surroundings of the driver has been shown.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1110104
  DOI ID：10.1299/jsmemecj.2018.S1110104, CiNii Articles ID：130007620068
• Development of Estimating System of Visual Fatigue against Luminescent Text Display based on Physiological Index　　　　　　　　　　　　　　　
  NISHIKAWA Tomohiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi; MASHIKO Naoya
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：G1200205, 2018
  

  Light emitting diodes (LEDs) have been widely used for the luminescent text display in automobiles. The purpose of the current study is to evaluate fatigue reduction characteristics in LEDs luminescent text display. For this purpose, we construct a model to estimate the participant's fatigue from physiological index. In the experiment, participants read Japanese sentences that were represented by backlight emitting for ten minutes. Brain activity were measured for the physiological index, and fatigue evaluation questionnaire was answered. The luminescent text display was implemented with LEDs of six kinds of white color. We constructed the deep learning model that inputs brain activity, and outputs "fatigue", "no fatigue" or "no change". The output was calculated from fatigue evaluation questionnaire. The model was able to estimate the fatigue with a validation accuracy of 86.4 %. Thus, the model showed the possibility that estimate fatigue based on the brain activity.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.G1200205
  DOI ID：10.1299/jsmemecj.2018.G1200205, CiNii Articles ID：130007619242
• RIDE COMFORT EVALUATION USING BRAIN ACTIVITY IN THE PREFRONTAL CORTEX INDUCED BY DISCOMFORT DURING HORIZONTAL VIBRATION　　　　　　　　　　　　　　　
  Kazunori Kaede; Yuta Arakawa; Keiichi Muramatsu; Keiichi Watanuki
  PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2017, VOL 11, 2018
  In this study, we measured brain activity using near-infrared spectroscopy (NIRS) when a person was feeling discomfort caused by vibrations. We used the variance in oxygenated hemoglobin (oxy-Hb) levels as an evaluation index. Correlation coefficients were derived from the results of brain function measurements and sensibility evaluation of discomfort using a questionnaire. As a result, a high negative correlation was observed between discomfort and both vibration and brain activation around the medial prefrontal cortex, and a high positive correlation was observed between discomfort and both vibration and brain activation around the lateral prefrontal cortex. This suggests the possibility of evaluating discomfort on the basis of brain activation.
  AMER SOC MECHANICAL ENGINEERS, English, International conference proceedings
  Web of Science ID：WOS:000428711400031
• Experimental Study on Color Preference and Visual Fatigue Against LED Lighting　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Kazunori Kaede; Eiichiro Tanaka; Keiichi Watanuki
  ADVANCES IN AFFECTIVE AND PLEASURABLE DESIGN (AHFE 2017), Volume：585, First page：78, Last page：85, 2018
  In recent times, light-emitting diode (LED) lighting has been widespread in offices and manufacturing buildings, but for assembly operation in manufacturing situations, it has not yet been explored. In this study, we measure color preference and visual fatigue to evaluate LED task lighting for assembly operation. We conducted an experiment to obtain subjective responses to color preference and to measure visual fatigue under LED lighting. The participants were asked to assemble a gearbox model as a task under three different lighting conditions. As a result, lighting with high color temperature was rated with high visibility, fatigability, and low preference. On the other hand, critical fusion frequency, which indicates visual fatigue, was higher in lighting with low color temperature than in lighting with other conditions. This indicates that color preference as a subjective response discords from visual fatigue evaluated by biological information.
  SPRINGER INTERNATIONAL PUBLISHING AG, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-60495-4_9
  DOI ID：10.1007/978-3-319-60495-4_9, ISSN：2194-5357, eISSN：2194-5365, Web of Science ID：WOS:000465822900009
• Analysis on Brain Activation and Eye Movement Related to Confidence for Responses to Multiple Choice Questions.　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Yuya Fujimura; Kazunori Kaede; Keiichi Watanuki
  IEEE International Conference on Systems, Man, and Cybernetics(SMC), First page：2998, Last page：3003, 2018
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/SMC.2018.00509
  DOI ID：10.1109/SMC.2018.00509, DBLP ID：conf/smc/MuramatsuFKW18
• Evaluation of Legibility and Visual Fatigue Caused by Luminescent Text Displays.　　　　　　　　　　　　　　　
  Daiki Saito; Keiichi Watanuki; Keiichi Muramatsu; Kazunori Kaede; Masutsugu Tasaki; Takashi Kanahira; Eiji Ishiguro; Naoya Mashiko
  Intelligent Human Systems Integration - Proceedings of the 1st International Conference on Intelligent Human Systems Integration (IHSI 2018): Integrating People and Intelligent Systems(IHSI), First page：646, Last page：651, 2018
  Springer, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-73888-8_100
  DOI ID：10.1007/978-3-319-73888-8_100, DBLP ID：conf/ihsi/SaitoWMKTKIM18
• Influence of VR-Based Slope Images on Walking Pattern.　　　　　　　　　　　　　　　
  Yusuke Osawa; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu; Norihiro Ishizaka
  Intelligent Human Systems Integration - Proceedings of the 1st International Conference on Intelligent Human Systems Integration (IHSI 2018): Integrating People and Intelligent Systems(IHSI), First page：375, Last page：380, 2018
  Springer, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-73888-8_58
  DOI ID：10.1007/978-3-319-73888-8_58, DBLP ID：conf/ihsi/OsawaWKMI18
• Study on Estimation of Driver's State During Automatic Driving Using Seat Pressure.　　　　　　　　　　　　　　　
  Kenta Okabe; Keiichi Watanuki; Kazunori Kaede; Keiichi Muramatsu
  Intelligent Human Systems Integration - Proceedings of the 1st International Conference on Intelligent Human Systems Integration (IHSI 2018): Integrating People and Intelligent Systems(IHSI), First page：35, Last page：41, 2018
  Springer, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-73888-8_7
  DOI ID：10.1007/978-3-319-73888-8_7, DBLP ID：conf/ihsi/OkabeWKM18
• Development of ontology toward common understanding of human sensibilities and emotions　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Tatsunori Matsui; Keiichi Watanuki
  Emotional Engineering: Understanding Motivation, Volume：6, First page：75, Last page：91, Nov. 2017
  With the ongoing development of information and communications technology, it is apparent that computers will be indispensable partners in future human life. In terms of computer information processing, techniques for coordinating human sensitivity and emotional levels are attracting attention and stand in contrast to conventional knowledge information processing. In this chapter, we present an overview of content-oriented research considering knowledge itself and describe an approach to handling knowledge of human sensitivity and emotions using computers. First, we provide an overview of existing content-oriented studies in the field of artificial intelligence (AI). Second, we discuss problems regarding the handling of knowledge of human sensibilities and emotions. Then, we introduce an ontology pertaining to the concept of color emotion as an approach to understanding human sensibilities and emotions. Finally, we describe the applicability of such an ontology to human-computer interactions and for the understanding of human nature through the concept of analysis-by-synthesis.
  In book
  DOI：https://doi.org/10.1007/978-3-319-70802-7_7
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85042500814&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85042500814&origin=inward
  DOI ID：10.1007/978-3-319-70802-7_7, SCOPUS ID：85042500814
• Development and evaluation of an assistive apparatus with pantograph mechanism for standing-up motion of elderly　　　　　　　　　　　　　　　
  Yun Ting Liao; Keiichi Muramatsu; Keiichi Watanuki; Eiichiro Tanaka
  Journal of Advanced Mechanical Design, Systems and Manufacturing, Volume：11, Number：6, Nov. 2017
  Due to the growing elderly population in many developed countries like Japan, assistive devices are increasingly needed to overcome the difficulties of their activities of daily living (ADL). The motion of standing up places a particular burden on the ankle and knee joints and connects static motions (e.g., sitting and lying) and kinetic motions (e.g., walking and climbing up/down the stairs). In our previous research, two types of standing-up assistance apparatuses were introduced according to the suitable standing-up motions. However, these devices are bulky and cannot be widely used in practical settings such as bus terminals. Regarding the suitable standing-up motions of the elderly in the previous literature, a standing-up apparatus with a pantograph mechanism is introduced to diminish the size of the mechanism based on three design principles: (1) the trajectory of the user's COG is an arc; (2) the trajectory of the user's hip joint while standing up is a straight line at an angle of 45 [deg] from the horizon; and (3) the user is supported until the knee angle reaches 60 [deg]. Simulations showed that the load on knee and ankle joint is decreased, and user may stand up easily with our proposed apparatus. A prototype of the apparatus that may be installed on various chairs in public was fabricated. Considering that the apparatus may be used in places without electric power supply, the apparatus is made simply with links and a gas spring instead of electric actuators. Experimental measurements of the trajectories of the center of gravity (COG) and hip joints show that the proposed apparatus may help users to stand in a way that minimizes stress on their lower-body joints.
  International conference proceedings
  DOI：https://doi.org/10.1299/jamdsm.2017jamdsm0088
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040245298&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85040245298&origin=inward
  DOI ID：10.1299/jamdsm.2017jamdsm0088, eISSN：1881-3054, SCOPUS ID：85040245298
• DEVELOPMENT OF A WALKING ASSISTANCE APPARATUS INCLUDING A TORQUE LIMITER IN A GEAR　　　　　　　　　　　　　　　
  TANAKA Eiichiro; NAGAYOSHI Hayato; KONDO Hirotoshi; MURAMATSU Keiichi; WATANUKI Keiichi
  The Proceedings of the JSME international conference on motion and power transmissions, Volume：2017, First page：12, Last page：2, 2017
  

  A walking assistance apparatus using a torque limiter was developed. We used the servo motor for hobby, it is relatively small, light weight, and included not only a motor and transmission gear, but also a driver and encoder. At first, we controlled the device using angle control method, according to the walking phase along to the mean data of able bodied people while walking. However, when the user stops walking suddenly or walk on outdoor various roads, the final gear was broken frequently. Because the gear was designed to break easily, to defend the motor from the inverse inputting overload torque. Then we developed a torque limiter mechanism in the final gear. This is a traction drive sandwiched a soft material plate between two circular disk. We carried out the experiment to measure the limit torques of eight kinds of the rubber material. In this paper, the results of the experiment were shown.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeimpt.2017.12-02
  DOI ID：10.1299/jsmeimpt.2017.12-02, CiNii Articles ID：130006008705
• DEVELOPMENT OF SMALL TYPE OF A STANDING UP ASSISTANCE DEVICE FOR THE ELDERLY　　　　　　　　　　　　　　　
  TANAKA Eiichiro; MURAMATSU Keiichi; WATANUKI Keiichi
  The Proceedings of the JSME international conference on motion and power transmissions, Volume：2017, First page：12, Last page：1, 2017
  

  We developed small type of a standing up device for the elderly. We have developed standing up devices; caster walker type and bed wheel chair type. They assist standing up motion, backed on following two conditions. 1) the trajectory of center of gravity of the user is round shape, 2) the trajectory of the hip joint of the user while standing up is straight line. These conditions were found from the data of able bodied elderly people, and the feature of their standing up conditions is to lean forward the upper body. By using these devices, the load of the knee joint decrease, and the user can learn how to stand up easily. However, these devices are bulky and usable scenes are limited. Then we developed small type, which can be used on various chairs. This type assists from sitting posture to the middle phase while standing up. The mechanism is constituted with links and a gas spring, instead of a motor. It is light weight, low cost, and small to be able to attach to the back of a chair. From the calculation, by using this new type, the output torques of the knee and ankle joints decreased.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeimpt.2017.12-01
  DOI ID：10.1299/jsmeimpt.2017.12-01, CiNii Articles ID：130006008706
• Development of a Rubber Belt Suit for Lift-Up Motion to Assist both Upper Limb and Back and Evaluation of Muscle Activity　　　　　　　　　　　　　　　
  TANAKA Eiichiro; MURAMATSU Keiichi; WATANUKI Keiichi; SAEGUSA Shozo; IWASAKI Yasuo; YUGE Louis
  JOURNAL OF JAPAN SOCIETY FOR DESIGN ENGINEERING, 2017
  

  We developed a new power assistance suit without the need for electricity. This suit is to support care worker's assistance behavior, e.g. lifting-up and holding motion. It is made of only rubber and nylon belts. This suit can assist the equipped person's arms and back with two kinds of equipped belts. One is for the waist, attached from the shoulder to the back of the knee via his/her back. The other is for the arms, attached from equipped person's forearm to the back of the knee via his/her back. To confirm the possibility of this suit, first, we interviewed medical doctors and physical therapists. Their comments were, it is important to adjust the length of each belt for an equipped person adequately, and it is effective for the assistance of motion in a half-sitting posture and in transfer motions between a bed and a wheel chair. Furthermore, we measured the variation of maximum output force and %MVC of the entire body muscles during lifting and holding motions using the suit and not. From the result, by using this suit, the maximum lifting weight of the equipped person was increased by over 8kg, and the arms and back of the equipped person were assisted effectively.

  
  Japan Society for Design Engineering, Japanese
  DOI：https://doi.org/10.14953/jjsde.2015.2667
  DOI ID：10.14953/jjsde.2015.2667, CiNii Articles ID：130005482421
• Proposal of feature extraction from biological information by convolutional neural network　　　　　　　　　　　　　　　
  NISHIKAWA Tomohiro; TAJIMA Kenji; HASHIMOTO Yushi; MURAMATSU Keiichi; KAEDE Kazunori; WATANUKI Keiichi; SAKAI Masako; Chung Elaine KY; SATO Atsushi
  The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP, Volume：2017, First page：G, Last page：7, 2017
  In recent years, with the development of IoT technologies, biological information of users has been easily acquired and accumulated. It is required that user's cognitive or emotional state could be accurately identified from such biological information. Various researches have used machine learning or deep learning however, generalized methods to handle biological data have not been established. In this paper, we propose a more versatile method using convolution neural network of deep learning to extract features from individual biometric information which is multi-channels time-series data representing user’s cognitive. We demonstrate a new method of extraction and distinguishment of features from cerebral blood flow, skin temperature, respiration and skin conductance measured during specific task conditions in the stroop experiment.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeiip.2017.G-07
  DOI ID：10.1299/jsmeiip.2017.G-07, CiNii Articles ID：130006008816
• Ontological descriptions of receiver states for sharing knowledge in learning service design　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Koji Kimita; Takatoshi Ishii; Yutaro Nemoto; Eiichirou Tanaka; Keiichi Watanuki; Tatsunori Matsui; Yoshiki Shimomura
  Journal of Advanced Mechanical Design, Systems and Manufacturing, Volume：11, Number：1, Jan. 2017
  Recently, the viewpoint of service has become widespread. In learning domains, service providers have been required to adopt the viewpoint and to provide values co-created by teachers and learners. However, production by a service provider means the generation of potential value, whereas usage by a service receiver implies the generation of real value. That is, a receiver creates value independent of the value generated by a provider. Indeed, value co-creation takes place in a joint sphere where providers and customers interact with each other. Thus, service providers must attempt to generate the potential value through service design and play a role of co-producer of the real value in the interactions between the providers and the receivers. In the current study, we developed an ontology to share the knowledge on value co-creation and the information related to the interactions between the providers and the receivers. In concrete terms, we proposed ontological descriptions of receiver states for sharing knowledge in learning service design, and conceptualized elements of consensus building and value co-creation, according to the conceptual model of value co-creation proposed in a previous study. In addition, concepts pertaining to academic emotions are also described to represent contents of consensus building. Then, we demonstrated instances of a consensus building, which is extracted from conversations during counseling by a teacher (mentor) and a learner. As a result, we obtained a metamodel for co-design processes in the learning service design, and a conceptual framework of the knowledge sharing on learning states including academic emotions by the ontological descriptions.
  Scientific journal
  DOI：https://doi.org/10.1299/jamdsm.2017jamdsm0008
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85032011423&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85032011423&origin=inward
  DOI ID：10.1299/jamdsm.2017jamdsm0008, eISSN：1881-3054, SCOPUS ID：85032011423
• A walking promotion method using the tuning of a beat sound based on a two-dimensional emotion map　　　　　　　　　　　　　　　
  Eiichirou Tanaka; Keiichi Muramatsu; Yusuke Osawa; Shozo Saegusa; Louis Yuge; Keiichi Watanuki
  Advances in Intelligent Systems and Computing, Volume：483, First page：519, Last page：525, 2017
  We proposed a method that promotes walking which uses a two-dimensional emotion map. In this method, a subject listened to a beat sound while walking. The beat was adjusted according to the condition of the subject, based on his/her comfortable walking frequency. Simultaneously, the walking velocity, the stride length, and the heart beat of the subject while walking was measured, and LF/HF was calculated from the result of measured heart beat. Furthermore, we asked them to give information on the condition of their feelings, from pleasant or not by 5 levels in each case of the beat sound. By using these data, a two-dimensional walking condition map and two-dimensional emotion map were made and we found the relation between these two maps. Therefore, according to the emotional condition of the targeted person while walking, this method can promote or restrain walking adequately, only adjusting the beat sound.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-41661-8_50
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84986253745&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84986253745&origin=inward
  DOI ID：10.1007/978-3-319-41661-8_50, ISSN：2194-5357, SCOPUS ID：84986253745
• Preliminary study of ontological descriptions of emotions using motion assistance apparatus　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Eiichirou Tanaka; Keiichi Watanuki
  Advances in Intelligent Systems and Computing, Volume：483, First page：535, Last page：542, 2017
  In the current study, we formulated ontological descriptions for emotional states of users using motion assistance apparatus. In our previous studies, we developed apparatus that assists the ankle joints of patients in neuro-rehabilitation. Although we have confirmed the apparatus can improve the gait of the patient while walking, we have to capture and manage patients’ emotions as feedback of the usage. The ontological descriptions provide a feasible framework for common understanding while sharing and using this knowledge. In future work, we will develop a subset of this framework for more practical usage, in addition to expanding the descriptions of emotional states. After that, we will assess the validity and utility for design and implementation of software and hardware applications using this subset.
  International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-41661-8_52
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84986269194&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84986269194&origin=inward
  DOI ID：10.1007/978-3-319-41661-8_52, ISSN：2194-5357, SCOPUS ID：84986269194
• Analysis of standing up aid mechanism for elderly on bus seats　　　　　　　　　　　　　　　
  BAI Wenjie; WATANUKI Keiichi; MURAMATSU Keiichi; KAEDE Kazunori
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：S1150105, 2017
  

  The increase in the aging population is one of the common problems in the world. Many elderly people experience difficulty in standing up from their seats owing to muscular depression. To improve the QOL (Quality of Life) and ADL (Activities of Daily Living) of elderly people, improvement of the traffic environment is necessary. We developed an assistive seat to help elderly people rise from their seats in a bus with fewer loads. We verified the performance of the assistive seat through EMG analysis. In conclusion, the developed assistive bus seat was effective in helping the user to stand up without difficulty.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.S1150105
  DOI ID：10.1299/jsmemecj.2017.S1150105, CiNii Articles ID：130006550814
• Development of Driving Support System for Step Climbing Electric Wheelchair Based on Operation Input and Predicted Evaluation of Human Exposure to Whole-body Vibration　　　　　　　　　　　　　　　
  KAEDE Kazunori; Otsuka Ryohei; WATANUKI Keiichi; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：S1150206, 2017
  

  It is difficult for users of electric wheelchair who suffer from quadriplegia or have compromised motor skills to manipulation of the joystick finely. Also, there is a risk causing a loss of control upon impacts with steps. In this research, we design a system that performs to assist fine control of the speed depending on the height of the step. This system uses a laser range finder to detect the step from remotely, and uses the valuation of human exposure to whole-body vibration in order to estimate discomfort that arose from the step height and step climbing speed. The potential of this system is also verified and manifested to reduce the impact caused by collisions with steps.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.S1150206
  DOI ID：10.1299/jsmemecj.2017.S1150206, CiNii Articles ID：130006550802
• Preliminary Study on Predictive Excretion System by Neural Network　　　　　　　　　　　　　　　
  TAJIMA Kenji; OSAWA Yusuke; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：S1150205, 2017
  

  Currently, Japan is entering a super aging society, and as the population of elderly people increases, the number of care recipients are also on the rise. The burden on nursing care homes is increasing; specifically, the burden on caregivers in excretion assistance is huge. Therefore, the need to develop nursing care equipment to support such tasks is increasing. In this study, a preliminary investigation was conducted to determine the possibility of excretion time prediction using data from the diet of a care recipient. We requested and obtained meal data and excretion data from experiment collaborators. We attempted to design a system that predicts the excretion time by a process similar to machine learning using a neural network that corresponds to the two sets of data. We can roughly predict the excretion time. The result showed that it is possible to predict the excretion time from the meal record. In the future, we will include details of the food we eat and biological information to improve prediction accuracy.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.S1150205
  DOI ID：10.1299/jsmemecj.2017.S1150205, CiNii Articles ID：130006550801
• Sign language recognition by interframe difference image using convolution neural network　　　　　　　　　　　　　　　
  NISHIKAWA Tomohiro; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：S1150204, 2017
  

  Sign language is used for communicating with deaf persons. To facilitate the communication between the deaf and the hearing communities, a sign language translator is required. However, sign language varies from country to country. Furthermore, the number of words is increasing as society develops, and as a result, artificial translation has become challenging. Therefore, substantial research has been carried out to recognize and translate sign language by means of computing methods. In this paper, we propose a sign language recognition method that can adapt to video images captured by general-purpose cameras, and not by special input devices such as a depth sensor. According to this method, sign language regions are extracted from moving images by interframe difference image processing, and are recognized by using a convolution neural network (CNN). As a result of the one-person-leave-out cross validation experiment to recognize 30 words, the highest validation accuracy observed was 90.0%. Thus, the proposed method's potential for sign language recognition is manifested.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.S1150204
  DOI ID：10.1299/jsmemecj.2017.S1150204, CiNii Articles ID：130006550800
• Development of reduction system for virtual reality sickness using virtual glass frame　　　　　　　　　　　　　　　
  ISHIZAKA Norihiro; WTANUKI Keiichi; KAEDE Kazunori; MURAMATU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：S1110401, 2017
  

  In this paper, we aimed at obtaining knowledge about the effect of adding a virtual glass frame and additional information to the Virtual Reality(VR) image on VR sickness. The virtual glass frame is an object model imitating a glass frame arranged in the VR space. The frame is arranged to cover the peripheral visual field when viewing a VR image using a head mounted display. We created VR contents such a spin room and carried out comparison experiments between conditions where the virtual glass frame was added to the VR image using a questionnaire and bio-information. It was found that addition of the virtual glass frame to the VR image reduces the occurrence of vection in the peripheral vision and that the evaluation value of VR sickness decreases. Moreover, adding horizontal information to the frame reduces the confusion of vestibular sensation; furthermore, it was found that the evaluation value of VR sickness further decreases.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.S1110401
  DOI ID：10.1299/jsmemecj.2017.S1110401, CiNii Articles ID：130006550763
• Estimation of Driver's State While Automatic Driving Using Seat Surface Pressure　　　　　　　　　　　　　　　
  OKABE Kenta; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：J1810202, 2017
  

  Automation level 3 of an automobile is an automatic operation in the normal state;, however, the operation is switched to the driver when it is determined that operation of the system is difficult to continue. In previous study, there were cases where automatic operation cannot be smoothly switched from manual operation owing to motion other than driving, or a decrease in arousal level during automatic operation. It is considered that estimating the condition of the driver can support smooth switching. In this study, we estimated the state of the driver while automatic driving using seat surface pressure. Results indicate that the estimation was approximately 100% in the individual evaluation and 78.4% in the overall evaluation using machine learning. This suggests that it is possible to estimate the driver's state while automatic driving.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.J1810202
  DOI ID：10.1299/jsmemecj.2017.J1810202, CiNii Articles ID：130006550447
• Quantitative evaluation of danger recognition by bio information during driving　　　　　　　　　　　　　　　
  HASHIMOTO Yushi; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：J1230103, 2017
  

  Recently, some measures to prevent traffic accidents have been introduced; for example, information presentation by a head up display (HUD), vibration at the handle, and sound signals. However, the index to verify these utilities has not been established yet. According to a preceding study, the relationship between brain activity and negative emotion was observed by the near-infrared spectroscopy (NIRS). Moreover, other studies show that mental stress is related to galvanic skin reaction (GSR), respiration (RSP), and blood volume pulse (BVP). In this paper, we considered danger recognition to be associated with negative emotion and mental stress situation, and examined whether the status of danger recognition can be observed by combining bio-information. We observed that danger recognition is correlated to brain activity and GSR. Additionally, the oxy-Hb and GSR were observed to change when recognizing danger. This result suggests that measuring brain activity and GSR can be used to establish whether danger is recognized or not, and the potential of evaluating presence of danger recognition by using bio-information

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.J1230103
  DOI ID：10.1299/jsmemecj.2017.J1230103, CiNii Articles ID：130006550438
• Evaluation of legibility and visual fatigue against luminescent text display using LED　　　　　　　　　　　　　　　
  SAITO Daiki; WATANUKI Keiichi; MURAMATSU Keiichi; KAEDE Kazunori; TASAKI Masutsugu; KANAHIRA Takashi; ISHIGURO Eiji; MASHIKO Naoya
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：J1230102, 2017
  

  LEDs are widely used for backlighting of text indicators in vehicles. It is desirable that such text indicators have high legibility and low fatigue-inducing qualities. Suitable spectral distributions for text presentation in vehicles have not yet been clarified. This study examined legibility and fatigue when participants watched various text presentations. Participants read Japanese sentences that were presented by backlight emission, for 10 minutes in a dark room. The backlight indicators employed two color LEDs. The participants were asked to answer questionnaires to evaluate legibility and fatigue. Critical fusion frequency, brain activity and electrocardiogram were measured to evaluate fatigue objectively. Based on the questionnaire results, both colored backlight equal in legibility. Subjective evaluations showed that fatigue is more likely to be caused by high color rending white backlighting. On the other hand, objective evaluations (critical fusion frequency, brain activity and electrocardiogram) showed that fatigue is likely to be caused by high color rending white backlighting.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.J1230102
  DOI ID：10.1299/jsmemecj.2017.J1230102, CiNii Articles ID：130006550437
• Development of Composition Generation System by Adjective Choice Using GA　　　　　　　　　　　　　　　
  KOYAMA Haruya; WATANUKI Keiichi; MURAMATSU Keiichi; KAEDE Kazunori
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：J1230106, 2017
  

  It is said that music is effective for controlling feelings. For example, we can feel relaxed to listen to slow music. This paper proposes a generation system which composes music by means of a genetic algorithm. The composition which is generated by the system consists of the melody part, the chord part, and the bass part. The system can specify the atmosphere of the generated composition by choosing adjective words; "lightness", "intensity", and "complexity". To reflect the effect of adjective points on atmosphere of generated composition, the system adjusts the parameters of an evaluation function. As a result of a composition generating experiment, similar melodies and rhythms were found in each composition. To evaluate the appropriateness of the function about reflecting the effect of adjective points on atmosphere of generated composition, we conducted a questionnaire investigation. As a result, satisfactory answers are obtained for a specific adjective word.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.J1230106
  DOI ID：10.1299/jsmemecj.2017.J1230106, CiNii Articles ID：130006550433
• Evaluation of Emotion during Listening to Classical Music based on Near-Infrared Spectroscopy　　　　　　　　　　　　　　　
  TSUKADA Daichi; WATANUKI Keiichi; MURAMATSU Keiichi; KAEDE Kazunori
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：J1230105, 2017
  

  In recent years, the number of people who suffer from dementia has increased as the aging population increases. Since a standard method for the treatment of dementia has not been developed, there has been an attempt to combine the treatment of dementia with complementary and alternative medicine. Among complementary and alternative medicine methods, music therapy has attracted attention because of its low risk of side effects. Currently, group therapy is the mainstream of music therapy in Japan because of insufficient number of music therapists. As a result, care for individuals has not been sufficient. Therefore, it is necessary to provide pleasant music for each patient that can be automated. For this reason, a music selection system is required, and this system can be realized by measuring emotions using biological information such as brain activity. In this study, we analyzed brain activity while listening to classical music using near infrared spectroscopy. In our experiment, participants listened to four types of music with different characteristics. The results show that the oxy-Hb rises when participants feel uncomfortable, while the oxy-Hb decreases when participants dislike the music. This indicates that emotions and preferences while listening to music can be identified using brain activity.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.J1230105
  DOI ID：10.1299/jsmemecj.2017.J1230105, CiNii Articles ID：130006550431
• Analysis of the relationship between eye movement and psychological state caused by interest and perplexity　　　　　　　　　　　　　　　
  MINAMI Kosei; WATANUKI Keiichi; KAEDE Kazunori; MURAMATU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：J1230104, 2017
  

  It is argued that, in human communication, the impression of a message is determined by nonverbal information. In this paper, we evaluated the relationship between human sensibility and eye movement. We conducted two kinds of experiments to induce a change in the psychological state. We used pictures of beverages as visual stimuli. A single image was applied in one experiment type, and double images were applied in the other experiment type. We carried out a questionnaire survey regarding the interest level with respect to the displayed image and measured eye movement with a gaze measurement system. The results indicated that the gaze time related to the displayed images with higher interest was longer in the double images experiment type. The number of blinks increased or decreased according to perplexity. The number of saccades increased or decreased in response to the perplexity levels in the double images experiment, and the change of saccades related to the interest in the single image experiment. These results showed that the eye movements have a potential for evaluating the psychological state.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.J1230104
  DOI ID：10.1299/jsmemecj.2017.J1230104, CiNii Articles ID：130006550429
• Experimental Study on Effects of Providing Gaze Information on Turn-Taking　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; SEKINE Shunsuke; KAEDE Kazunori; WATANUKI Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2017, Number：0, First page：G1600106, 2017
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2017.G1600106
  DOI ID：10.1299/jsmemecj.2017.G1600106, CiNii Articles ID：130006550091
• Sleepiness Evaluation of Driver using Near-Infrared Spectroscopy　　　　　　　　　　　　　　　
  OKABE Kenta; WATANUKI Keiichi; KAEDE Kazunori; HOU Lei; MURAMATSU Keiichi
  The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP, Volume：2016, Number：0, First page：G, Last page：1-3, 2016
  

  A number of traffic accidents have occurred due to human errors such as inattentive driving and drowsy driving. Sleepiness is considered as one of the causes of these traffic accidents. For this reason, establishment of the sleepiness evaluation method during driving a car has been required. In this paper, we measured changes in cerebral blood flow during driving a car using a portable near-infrared spectroscopy device. The results show that oxygenated hemoglobin tends to decrease with the rise of the sleepiness level evaluated by facial expression and that there are negative correlations between oxygenated hemoglobin and sleepiness level in many trials. This suggests the possibility of sleepiness evaluation of a driver using near-infrared spectroscopy.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeiip.2016.G-1-3
  DOI ID：10.1299/jsmeiip.2016.G-1-3, CiNii Articles ID：130007162974
• Conceptual Descriptions of Design Action and Objects in Electronic Components Design　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; TANAKA Eiichirou; WATANUKI Keiichi
  The Proceedings of the Machine Design and Tribology Division meeting in JSME, Volume：2016, Number：0, First page：B3, Last page：1, 2016
  

  Recently, improvement of design capability is one of important issues in industry However, it's really difficult to share knowledge of design possessed by experts with novices, because the knowledge exists depending on their skill and degree of prociency. Thus the current study aims to excavate the experts' Knowledge. We then described design objects related to action to design electronic components.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemdt.2016.16.B3-1
  DOI ID：10.1299/jsmemdt.2016.16.B3-1, CiNii Articles ID：130007152375
• Experimental Study of Attention Induction Using Sound Image Movement　　　　　　　　　　　　　　　
  TSUNORI Takashi; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：S1110203, 2016
  

  In recent years, various driving support system has been developed as traffic accident prevention. However, they are unless transmitted to the intention that led to providing support, there is a possibility that the rather confusing the driver. Therefore, when the adoption of the driving assistance system, consider plenty the human visual attention to contribute significantly to cognition, without disturbing with the normal driving behavior, it is required a method for supporting recognition of the surrounding dangerous object. In this paper, we investigated the reaction time when subjected to experiments using dual task, has been presented a variety of auditory stimuli as lead cue stimuli. As a result, when using auditory stimulation with sound image movement, it tended to the reaction time of the central issue and the peripheral issues becomes earlier were observed. The result showed that the possibility of inducing an attention without considering the driver by using sound image movement as a visual assistance.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.S1110203
  DOI ID：10.1299/jsmemecj.2016.S1110203, CiNii Articles ID：130007069953
• Examining effectiveness of cognitive rehabilitation by cooperative operation between remote locations　　　　　　　　　　　　　　　
  SAITO Daiki; WATANUKI Keiichi; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：S1170402, 2016
  

  In recent years, the number of dementia elderly person has been increasing. Various cognitive rehabilitation is underwent in nursing homes. However, it is difficult for them living far away from their home to undergo cognitive rehabilitation. Therefore, if they undergo cognitive rehabilitation in remote locations, many of them can improve dementia. In this research, we examined cognitive rehabilitation by cooperative between remote locations. When they undergo cognitive rehabilitation in remote locations, improvement of their presence is needed and it is assumed that cooperative operation can improve their presence. We chose a maze done by two persons cooperatively as concrete cooperative operation. In our experiment, firstly we compared brain activity between doing the maze and calculating because calculation is used as cognitive rehabilitation. Secondly we examined the possible of improvement of their presence during doing the maze. The result shows that the maze and calculation caused similar brain activity and cooperative operation improve presence. It reveals effectiveness of cognitive rehabilitation by cooperative between remote locations.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.S1170402
  DOI ID：10.1299/jsmemecj.2016.S1170402, CiNii Articles ID：130007069141
• Proposal and assessment of the walking promotion / continuation method based on two-dimensional emotional map　　　　　　　　　　　　　　　
  OSAWA Yusuke; TANAKA Eiichiro; MURAMATU Keiichi; WATANUKI Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：S1170305, 2016
  

  Various walking assistance devices which promote rehabilitation and exercise for elderly have been developed. However, these devices can't support walking for exercise, because many elderly feels fatigue and bored in assisted walking. Therefore, the aim of our current study is to assist not only physically but also mentally elderly walkers to keep up their motivation. Concretely, we propose a walking promotion method that walkers listen to the beat sound adjusted according to their emotions with the ankle support assistance device. In order to confirm the effectiveness of the method, we conducted two experiments. The first experiment has four conditions where walkers have the device assist or not and the beat sound assist or not. As a result, the gait was improved with the device and sound assist where target cadences were adjusted according to their walking cycle. The second experiment has two conditions where walkers assisted sound adjusted according to their emotions or not. As a result, awakening levels perceived by the walkers remarked higher than ones in usual walking. These results showed the effectiveness of the method and possibility of the control of the emotion while walking.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.S1170305
  DOI ID：10.1299/jsmemecj.2016.S1170305, CiNii Articles ID：130007069125
• Sleepiness Evaluation Using Portable Near-infrared Spectroscopy Device during Driving Car　　　　　　　　　　　　　　　
  OKABE Kenta; WATANUKI Keiichi; KAEDE Kazunori; HOU Lei; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：S1170205, 2016
  

  Many traffic accidents in car driving are associated with sleepiness. It is possible to prevent these traffic accidents by detecting sleepiness of the drivers while driving their car and making them pay attention to driving. Since the possibility that cerebral blood flow is related to sleepiness has been suggested, it is assumed that it would be able to evaluate sleepiness by the changes in cerebral blood flow. In this paper, we measured changes in cerebral blood flow during driving a car using a portable near-infrared spectroscopy device. The results show that oxygenated hemoglobin that is included in the cerebral blood flow tends to decrease with the rise of the sleepiness level evaluated by facial expression and that there is the significant difference in mean oxy-Hb between the two sleepiness level. From this vital reaction, it is suggested that the possibility of sleepiness evaluation of a driver using near-infrared spectroscopy and detection of driver's sleepiness at the level that driver's consciousness become low.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.S1170205
  DOI ID：10.1299/jsmemecj.2016.S1170205, CiNii Articles ID：130007069122
• Analysis of Brain Activation in Prefrontal Cortex Induced by Discomfort during Horizontal Vibration　　　　　　　　　　　　　　　
  ARAKAWA Yuta; WATANUKI Keiichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：J1210104, 2016
  

  In this research paper, we measured brain activities by near-infrared spectroscopy (NIRS) when a person is feeling the discomfort caused by vibration. In particular, we examined the effect on brain activation by the presence or absence of notice sound at the time of the start of vibration. We used a variance of oxygenated hemoglobin (oxy-Hb) as an evaluation index. We observed a difference in tendency of brain activation between the presence and absence of signal which affect participants in a surprising way. High negative correlation was observed between discomfort to vibration and brain activation around the medial prefrontal cortex, when value of surprise at the start of the vibration is small. High positive correlation is observed between discomfort to vibration and brain activation around the prefrontal cortex outer portion, when value of surprise at the start of the vibration is big. Possibility to evaluate the discomfort is suggested on the basis of brain activation which reflects the changes in the psychological state by surprise.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.J1210104
  DOI ID：10.1299/jsmemecj.2016.J1210104, CiNii Articles ID：130007063166
• Evaluation of Color Preference and Visual Fatigue under Task Lighting　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; KAEDE Kazunori; TANAKA Eiichiro; WATANUKI Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：J1210101, 2016
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.J1210101
  DOI ID：10.1299/jsmemecj.2016.J1210101, CiNii Articles ID：130007063163
• Modeling of Body Motion by the Mahalanobis-Taguchi System for Application to Control System　　　　　　　　　　　　　　　
  ASAKA Yusuke; WATANUKI Keiichi; FUKUDA Syuichi; KAEDE Kazunori; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：J1210105, 2016
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.J1210105
  DOI ID：10.1299/jsmemecj.2016.J1210105, CiNii Articles ID：130007062961
• ANALYSIS OF BRAIN ACTIVITY INFLUENCED BY REPLICATION ACCURACY IN IMITATION LEARNING IN MANUFACTURING INDUSTRIES　　　　　　　　　　　　　　　
  Yusuke Asaka; Keiichi Watanuki; Shuichi Fukuda; Keiichi Muramatsu; Lei Hou
  PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2016, VOL 1A, 2016
  Here, we investigate and discuss the effect of accuracy of imitation for improvement of skills on brain activity. In order to improve the skills, learners combine and accumulate information of the skills through practice. Thus, we used near infrared spectroscopy (NIRS) to investigate brain activity during the process of improvement. Evaluation of the level of knowledge acquisition with monitoring of brain activity can be an indicator of the learner's degree of skill progression.Therefore, our final goal is constructing a new learning model based on brain activity monitoring and improving learning efficiency. We experimented on the assembly operation by imitation learning that assumed work in the manufacturing industries from a previous example. As a result, we showed the possibility of brain activity shift with improvement of the skill. In this article, we targeted task accuracy and investigated whether the brain activity shift is caused by a progress in the task accuracy, act of practice, or some other factor. As a result, we showed a possibility that the trend shift in the right and left dorsolateral prefrontal area and frontal pole was not caused by the simple task accuracy improvement but by the action of practice, which helped subjects store the information.
  AMER SOC MECHANICAL ENGINEERS, English, International conference proceedings
  Web of Science ID：WOS:000393000300051
• Easy set-up and in situ automatic gear diagnostic system using only laser reflection　　　　　　　　　　　　　　　
  Eiichirou Tanaka; Keyaki Nakajima; Kazunari Okabe; Hitoshi Takebe; Kazuteru Nagamura; Kiyotaka Ikejo; Shinji Hashimura; Keiichi Muramatsu; Keiichi Watanuki; Ryozo Nemoto
  JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING, Volume：10, Number：4, 2016
  We developed a new method that can diagnose damage on a gear tooth surface using a laser beam without a rotary encoder. The method procedure is as follows: 1) The tooth bottom, the tooth tip and their two median values are detected using the differential values of the laser reflection data. 2) The gear rotation speed is calculated with these four positions, and interpolated according to the rotation fluctuation. 3) Using the calculated gear rotation speed, the measured data can be converted to the corresponding gear rotation angles. Thus we can diagnose the damage of the gear tooth surface precisely and can easily set up the experimental measurements without being influenced by rotational fluctuation. To confirm the validity of the method, we conducted the diagnosis experiment and we created contour maps to show the diagnosis accuracy variation according to the fluctuations of the amplitude and cycle. Based on these maps, we found that the diagnosis accuracy of the damage size is the same irrespective of the presence or absence of a rotary encoder. The diagnosis accuracy of the damage location without using a rotary encoder is lower than the result obtained using a rotary encoder because we assumed that the detection of the damage start point is delayed using this new method. Furthermore, we defined the limit using the conditions of this method from the sampling theorem; the validity of this definition could also be confirmed from the contour map.
  JAPAN SOC MECHANICAL ENGINEERS, English, Scientific journal
  DOI：https://doi.org/10.1299/jamdsm.2016jamdsm0059
  DOI ID：10.1299/jamdsm.2016jamdsm0059, ISSN：1881-3054, Web of Science ID：WOS:000384230900006
• Study of RE-Gait (R) as the Device That Promotes Walking Using a Two-Dimensional Emotion Map　　　　　　　　　　　　　　　
  Eiichirou Tanaka; Yusuke Osawa; Keiichi Muramatsu; Keiichi Watanuki; Shozo Saegusa; Louis Yuge
  ROMANSY 21 - ROBOT DESIGN, DYNAMICS AND CONTROL, Volume：569, First page：369, Last page：376, 2016
  We developed a walking assistance apparatus RE-Gait (R) for not only the elderly but also apoplexy patients, which assist the ankle joint of the equipped person. By only assisting the ankle joint, the equipped person's leg can be raised. To keep up the user's motivation for exercise using this apparatus, it is necessary to assist not only physically but also mentally. Therefore we suggested the new method of promotion walking, using the walking assistance apparatus while listening to the beat sound, which was adjusted according to a two-dimensional emotion map. In this paper, the relation between emotion map and walking condition map is shown.
  SPRINGER INT PUBLISHING AG, English, International conference proceedings
  DOI：https://doi.org/10.1007/978-3-319-33714-2_41
  DOI ID：10.1007/978-3-319-33714-2_41, ISSN：0254-1971, Web of Science ID：WOS:000389589200041
• COLOR EMOTION UNDER LED LIGHT SYSTEM CONTROLLING COLOR RENDERING PROPERTY　　　　　　　　　　　　　　　
  Keiichi Watanuki; Hiroshi Shinoda; Keiichi Muramatsu
  PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2015, VOL. 11, 2016
  Emotional responses to color stimuli are referred to as color emotions, and relationships between color attributes and them have been discussed in past studies. In the current study, we reveal relationships between color rendering properties and color emotions to provide a light system controlling color emotions along with color rendering property. We developed such a system and conducted two evaluations of the system performance and color emotions under the light generated by the system. The system we developed in the current study has four color (red, green, blue, and yellow) LEDs to enrich color rendering property.In addition, we conducted a subjective assessment to explore relationships between color emotions and color rendering properties. In the assessment, we studied color emotions against facial skin irradiated by various illuminants with different color rendering properties. We prepared sixteen different light conditions and the participants of the study were asked to respond to the stimuli with fifteen Likert scales. As a result, we confirmed that the color rendering property certainly affects color emotions, and we obtained regression models to represent color emotions by color rendering properties. Furthermore, we found that male and female test subjects experience different color emotions based on skin color.
  AMER SOC MECHANICAL ENGINEERS, English, International conference proceedings
  Web of Science ID：WOS:000377419900040
• Framework to describe constructs of academic emotions using ontological descriptions of statistical models.　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Eiichirou Tanaka; Keiichi Watanuki; Tatsunori Matsui
  Research and practice in technology enhanced learning, Volume：11, Number：1, First page：5, Last page：5, 2016, ［International magazine］
  Many studies have been conducted during the last two decades examining learner reactions within e-learning environments. In an effort to assist learners in their scholastic activities, these studies have attempted to understand a learner's mental states by analyzing participants' facial images, eye movements, and other physiological indices and data. To add to this growing body of research, we have been developing the intelligent mentoring system (IMS), which performs automatic mentoring by using an intelligent tutoring system (ITS) to scaffold learning activities and an ontology to provide a specification of learner's models. To identify learner's mental states, the ontology operates on the basis of the theoretical and data-driven knowledge of emotions. In this study, we use statistical models to examine constructs of emotions evaluated in previous psychological studies and then produce a construct of academic boredom. In concrete terms, we develop ontological descriptions of academic boredom that are represented with statistical models. To evaluate the validity and utility of the descriptions, we conduct an experiment to obtain subjective responses regarding learners' academic emotions in their university course and describe them as instances on the basis of the ontological descriptions.
  English, Scientific journal
  DOI：https://doi.org/10.1186/s41039-016-0029-1
  DOI ID：10.1186/s41039-016-0029-1, PubMed ID：30613238, PubMed Central ID：PMC6302842
• Development of a walking assistance apparatus for gait training and promotion of exercise.　　　　　　　　　　　　　　　
  Eiichirou Tanaka; Keiichi Muramatsu; Keiichi Watanuki; Shozo Saegusa; Louis Yuge
  2016 IEEE International Conference on Robotics and Automation(ICRA), First page：3711, Last page：3716, 2016
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/ICRA.2016.7487557
  DOI ID：10.1109/ICRA.2016.7487557, DBLP ID：conf/icra/TanakaMWSY16
• Framework to describe constructs of academic emotions using ontological descriptions of statistical models.　　　　　　　　　　　　　　　
  Keiichi Muramatsu; Eiichirou Tanaka; Keiichi Watanuki; Tatsunori Matsui
  Res. Pract. Technol. Enhanc. Learn., Volume：11, Number：1, First page：5, Last page：5, 2016
  Scientific journal
  DOI：https://doi.org/10.1186/s41039-016-0029-1
  DOI ID：10.1186/s41039-016-0029-1, DBLP ID：journals/rptel/MuramatsuTWM16
• Evaluation of a Device that Promotes Walking Using a Two-Dimensional Emotion Map　　　　　　　　　　　　　　　
  Eiichirou Tanaka; Yusuke Osawa; Keiichi Muramatsu; Keiichi Watanuki; Shozo Saegusa; Louis Yuge
  2016 WORLD AUTOMATION CONGRESS (WAC), 2016, [Reviewed]
  We developed a device that promotes walking which uses a two-dimensional emotion map for the exercise of the elderly. This map was made with two axes, the horizontal axis was pleasant or unpleasant, with the vertical axis being arousal or not, same as the circumplex model of affect (J.A. Russell (1980)). This device has two means to promote walking. One is an ankle joint assistance system, which consists of a servo motor and a controller which can adjust the targeted walking cycle, the targeted angle of the ankle joint, and the sensitivity of the sensors which was attached under the sole. The other is a beat listening system. The beat listening system makes the beat sound, which is decided for the purpose of the user, and based on the walking cycle. The user listens to the beat sound using head phones. By combining and using these two means simultaneously, users can change their gait and emotion, therefore, they can continue to walk for a long time.
  IEEE, English, International conference proceedings
  ISSN：2154-4824, Web of Science ID：WOS:000386618400018
• HUMAN ACTION MODELING AND APPLICATION TO A CONTROL SYSTEM USING THE MAHALANOBIS-TAGUCHI SYSTEM　　　　　　　　　　　　　　　
  Yusuke Asaka; Keiichi Watanuki; Shuichi Fukuda; Keiichi Muramatsu; Kazunori Kaede
  PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2016, VOL 1A, 2016, [Reviewed]
  This paper discusses human action modeling and its application to a control system that uses the Mahalanobis Taguchi System (MTS). In this study, we define embodied knowledge as being included in tacit knowledge. We also define a set of skills based on experiences and intuitive sense as seen in creating an art, sport, craft, or other skilled task. Embodied knowledge is difficult to express explicitly. As our goals, we analyze embodied knowledge acquisition for human action modeling and apply to a control system by using MTS.
  An analysis of embodied knowledge using devices and pattern-recognition techniques to recognize un-explicit knowledge are being developed owing to recent improvements in technology. Embodied knowledge acquisition element of recognition can be represented as a pattern recognition technique. In this paper, we confirm that MTS is an adaptive method for recognizing pattern in human action modeling.
  We set up a control model including a controller using the MTS, which is modeled after an internal model of the cerebellum. We apply the controller based on the Recognition Taguchi (RT) method to invert the control of the pendulum. The result indicate that the controller is capable of detecting disturbance.
  AMER SOC MECHANICAL ENGINEERS, English, International conference proceedings
  Web of Science ID：WOS:000393000300050
• 3304 Conceptual descriptions of receiver states for sharing knowledge in learning service design　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; KIMITA Koji; ISHII Takatoshi; NEMOTO Yutaro; TANAKA Eiichirou; WATANUKI Keiichi; MATSUI Tatsunori; SHIMOMURA Yoshiki
  The Proceedings of Design & Systems Conference, Volume：2015.25, First page：_3304-1_, Last page：_3304-6_, 2015
  Recently, view point of service has been widespread. In learning domains, service providers have been required to adopt it and to provide values co-created by teachers and learners. The value co-creation takes place in joint sphere where providers and customers make interaction, and the value is subjectively perceived by receivers (learners in learning service). That is, a mental state of leaner is one of possible value in the co-creation. The current study aims to develop a conceptual framework which describes mental states of learners for specifying values in the co-creation. As a result, we proposed ontological descriptions of learning event which consists of a teacher, a learner, learning materials, and a learning action by the learner. In concrete terms, we proposed ontological descriptions for receiver states in a learning activity, on the basis of a conceptual model of value co-creation. The ontological descriptions are useful for sharing knowledge on values perceived by learners to design learning services.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2015.25._3304-1_
  DOI ID：10.1299/jsmedsd.2015.25._3304-1_, eISSN：2424-3078, CiNii Articles ID：110010049902
• 223 Effects of Research Internship Program for Human-Machine Interface by High School and University Partnerships　　　　　　　　　　　　　　　
  WATANUKI Keiichi; KAEDE Kazunori; HOU Lei; MURAMATSU Keiichi; OKAMURA Kiyoyuki
  The Proceedings of the Tecnology and Society Conference, Volume：2015, First page：39, Last page：40, 2015
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmetsd.2015.39
  DOI ID：10.1299/jsmetsd.2015.39, eISSN：2432-9487, CiNii Articles ID：110010051053
• J1210104 Analysis of Emotion during Listening to Music Using Brain Activity　　　　　　　　　　　　　　　
  TANGE Kazuya; WATANUKI Keiichi; HOU Lei; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2015, First page：_J1210104-, Last page：_J1210104-, 2015
  In recent years, the way to alleviate the disease by using of music that is so-called music therapy, has become popular in Japan. The music therapy is a therapeutic pedagogical technique which is carried out towards the recovery of cognitive and emotional disorders by using of music. Due to awareness of health in the super-aging society of Japan, demands for music therapy is increasing. However, it is difficult to appeal a preference of music for patients who have disorder of speech. Therefore, objective measurement method of emotion, like a measurement method of brain activity, is necessary for provision of music that fit each patients. In this paper, we conducted analysis of brain activity by using of Near-infrared spectoroscopy during listening to music. In our experiment, subjects listened to six kinds of music that combined various tempos and keys. The result shows that each combination of keys and tempos caused different brain activity. It reveals that emotions during listening to music can be identified by using of brain activity.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2015._j1210104-
  DOI ID：10.1299/jsmemecj.2015._j1210104-, eISSN：2424-2667, CiNii Articles ID：110010049045
• メンターと学習者の合意形成の表現に向けた発話内容の概念化の試み　　　　　　　　　　　　　　　
  村松 慶一; 木見田 康治; 石井 隆稔; 根本 裕太郎; 田中 英一郎; 綿貫 啓一; 松居 辰則; 下村 芳樹
  Volume：2015, Number：0, First page：1E5OS11b3, Last page：1E5OS11b3, 2015
  

  高等教育においては，教育サービスの提供者と受給者が目標とする学習成果についての合意形成を行うことで，高い利用価値を共創的に実現することが期待される．本研究では，合意形成の過程を可視化するために，合意された話題の意味内容の概念化を試みる．具体的には，メンターと学習者のカウンセリング事例を取り上げ，サービス提供者，受給者，コンテンツ・チャネルとして発話内容を位置づける．

  
  Japanese
  DOI：https://doi.org/10.11517/pjsai.JSAI2015.0_1E5OS11b3
  DOI ID：10.11517/pjsai.JSAI2015.0_1E5OS11b3, CiNii Articles ID：130007423059
• Development of the easy set-up and in situ automatic gear diagnostic system using a laser beam　　　　　　　　　　　　　　　
  Keyaki Nakajima; Eiichirou Tanaka; Kazunari Okabe; Hitoshi Takebe; Kazuteru Nagamura; Kiyotaka Ikejo; Shinji Hashimura; Keiichi Muramatsu; Keiichi Watanuki; Ryozo Nemoto
  Proceedings of the ASME Design Engineering Technical Conference, Volume：10, 2015
  We developed a method which can diagnose damage on a gear tooth surface by using laser beam without a rotary encoder. This method is as follows: 1) The tooth bottom, the tooth tip and their two medians are detected by the differentials of the laser reflection data. 2) The gear rotation speed is calculated with these four positions, and interpolated according to the rotation fluctuation. 3) By using the calculated gear rotation speed, the measured data can be converted corresponding to the gear rotation angle. Thus we diagnose gear tooth surface damage without being influenced by rotational fluctuation. We did diagnosis experiments and we made contour maps show diagnosis accuracy. From these maps, we got the following conclusions: 1) The accuracy of damage diagnosis is the same level regardless of the presence or absence of a rotary encoder. 2) The cycle of rotational fluctuation hardly affects the accuracy. 3) Bigger fluctuation amplitude makes the range accuracy worse, however the position accuracy improves.
  International conference proceedings
  DOI：https://doi.org/10.1115/DETC201547252
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84979032229&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84979032229&origin=inward
  DOI ID：10.1115/DETC201547252, SCOPUS ID：84979032229
• Motion assistance apparatus enabled for neuro-rehabilitation of patients and for the promotion of exercise for the elderly.　　　　　　　　　　　　　　　
  Eiichirou Tanaka; Ryosuke Niwa; Kazuki Osawa; Keyaki Nakajima; Keiichi Muramatsu; Keiichi Watanuki; Shozo Saegusa; Louis Yuge
  IEEE International Conference on Advanced Intelligent Mechatronics(AIM), First page：937, Last page：942, 2015
  IEEE, International conference proceedings
  DOI：https://doi.org/10.1109/AIM.2015.7222659
  DOI ID：10.1109/AIM.2015.7222659, DBLP ID：conf/aimech/TanakaNONMWSY15
• Evaluation of human thermal comfort using near-infrared spectroscopy　　　　　　　　　　　　　　　
  Keiichi Watanuki; Lei Hou; Yuuki Kondou
  Proceedings of the ASME Design Engineering Technical Conference, Volume：1A, 2014
  Air-conditioning equipment is used in various places such as houses, office buildings, and public facilities and is indispensable in modern-day life. Therefore, the energy consumption of air-conditioning equipment accounts for a large percentage of the total energy consumption in the average household. Specifically, it accounts for 26% of the annual energy consumption in ordinary homes and 27% in industry, according to the Annual Energy Report for Japan, which was presented by the Ministry of the Economy, Trade, and Industry, and the Agency for Natural Resources and Energy in 2010. Therefore, it is desirable to reduce energy consumption by reducing the air-conditioning load. The Ministry of the Environment recommends a constant preset temperature of 28°C in summer to decrease energy consumption. However, many people feel uncomfortable in such a thermal environment. Thus, an air-conditioning control to simultaneously suppress energy consumption and maintain human thermal comfort is desired. To develop such a control, an index to accurately evaluate human thermal comfort is needed. When a person feels comfortable or uncomfortable, their prefrontal area, which is involved in thinking and the feeling of emotions, is activated. It is presumed that the measurement of the brain activation reaction of a person will reveal whether the person feels comfortable or uncomfortable in the thermal environment. The evaluation of thermal comfort by means of brain activation reactions will allow one to develop the optimum airconditioning control to maintain human thermal comfort. This paper proposes a method to evaluate thermal comfort via brain signals and ultimately aims to develop an air-conditioning control system utilizing this evaluation method. This paper will describe the measurement procedure of brain activation reactions to indoor-temperature change by using near-infrared spectroscopy and the relationship between thermal comfort and brain activation reaction. This study also investigated the changes in oxyHb levels together with indoor-temperature changes, measured with the NIRS. We measured the changes in the oxyHb levels of the prefrontal area when the temperature increased and decreased. As a result, the oxyHb level in the prefrontal area correlated with the indoor-temperature change, the PMV, and the subjects' declaration of thermal sensation. Conversely, the change in the oxyHb level with the inclusion of wind and a constant indoor temperature significantly differed with that with a varying indoor temperature. Furthermore, the oxyHb change correlated with the PMV and the subject's declaration of thermal sensation. Therefore, the measured oxyHb change may represent the thermal comfort of a person.
  American Society of Mechanical Engineers (ASME), English, International conference proceedings
  DOI：https://doi.org/10.1115/DETC201435430
  DOI ID：10.1115/DETC201435430, SCOPUS ID：84961297228
• Virtual reality-based lathe operation training based on brain activity assessment using functional near-infrared spectroscopy　　　　　　　　　　　　　　　
  Keiichi Watanuki; Lei Hou
  Advanced Concurrent Engineering, First page：301, Last page：308, 2011
  This paper proposes a new virtual reality-based lathe operation training and human resource development. In our proposed system, the education content is displayed in the immersive virtual environment with haptic information, whereby a trainee may experience work in the virtual site operation. The brain functional activities of the worker under virtual and real skills training are measured using near-infrared spectroscopy, and the characteristics of these activities are analyzed in detail. © 2011 Springer-Verlag London Limited.
  English, International conference proceedings
  DOI：https://doi.org/10.1007/978-0-85729-799-0_35
  DOI ID：10.1007/978-0-85729-799-0_35, ISSN：1865-5440, SCOPUS ID：84870222404
• Design of non-invasive brain-machine interface using near-infrared spectroscopy (brain activation response during center of gravity movement trials)　　　　　　　　　　　　　　　
  Lei Hou; Keiichi Watanuki
  Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Volume：77, Number：783, First page：3962, Last page：3967, 2011
  Research on brain-machine-interfaces (BMIs) is widespread and rapidly growing in concert with the rapid advances of recent years in brain science and engineering, and systems technologies for interactions between human and machine are of major interest. It is very important for development of BMIs to analysis brain activities. In this paper, we present measurement of brain activation response for weight shifting and center of gravity movement trials using near-infrared spectroscopy (NIRS). We measured their brain activations by NIRS. To evaluate effects of skin blood flow, we used probes with two distinct distances (15mm and 30mm) for NIRS and simultaneously measured skin blood flow. We also measured the position of the center of gravity using the ground reaction meter. The results showed that oxy-Hb changes were influenced by direction of movement. We also found that NIRS signals generally reflected skin blood flow. © 2011 The Japan Society of Mechanical Engineers.
  Japan Society of Mechanical Engineers, Japanese, International conference proceedings
  DOI：https://doi.org/10.1299/kikaic.77.3962
  DOI ID：10.1299/kikaic.77.3962, ISSN：0387-5024, SCOPUS ID：84859621578
• Augmented reality-based training system for metal casting　　　　　　　　　　　　　　　
  Keiichi Watanuki; Lei Hou
  Journal of Mechanical Science and Technology, Volume：24, Number：1, First page：237, Last page：240, Feb. 2010
  Products fabricated by metal casting are affected by casting design and pouring. In order to design products efficiently, engineers must consider the shape of the pouring gate and the fluidity of metal in the runner. Engineers must envision the shape of the product and the fluidity of the metal in three dimensions. However, this task is difficult, especially for beginners. Therefore, we developed an augmented reality-based training system for metal casting that allows visualization of fluidity. The proposed training system uses simple physical operations to compute and display fluidity in real-time. Visualization of three-dimensional images as well as training on this system is simple. © KSME &
  Springer 2010.
  English, Scientific journal
  DOI：https://doi.org/10.1007/s12206-009-1175-9
  DOI ID：10.1007/s12206-009-1175-9, ISSN：1738-494X, SCOPUS ID：77949648758
• Gait generation and change of direction for the underactuated three-legged robot　　　　　　　　　　　　　　　
  Kazunori Kaede; Keiichi Watanuki
  JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, Volume：24, Number：1, First page：55, Last page：58, Jan. 2010, [Reviewed]
  This paper describes a three-legged robot that consists of one actuated leg and two passive legs. The active leg has a knee joint and an ankle joint. The passive legs have no knee joint, although they have a passive ankle joint respectively. The passive leg part and the actuated leg part are linked by a hip part. The robot behavior is passive while the robot is supported by its passive legs and swings the actuated leg part. Generally, in the event that an actuator or a transmitting mechanism fails, robots cannot apply torques to the joint. We therefore took up a walking robot with passive knee joints not only for the energy-efficient walking but also with a view to making ambulation failsafe in case of mechanical failures.
  KOREAN SOC MECHANICAL ENGINEERS, English, Scientific journal
  DOI：https://doi.org/10.1007/s12206-009-1176-8
  DOI ID：10.1007/s12206-009-1176-8, ISSN：1738-494X, Web of Science ID：WOS:000273828400012
• Development of virtual reality-based universal design review system　　　　　　　　　　　　　　　
  Keiichi Watanuki
  JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, Volume：24, Number：1, First page：257, Last page：262, Jan. 2010, [Reviewed]
  When designing universal design products or their interfaces, it is necessary to have knowledge about the environment in which the target product is going to be used. Product development should consider the interaction between the envisaged product or a demo product with the same functions on the one hand, and the users on the other, as well as observing the everyday activities of typical users, understanding the procedures and methods for using the product and subsequently pinpointing the areas which are problematic or in need of improvement. To evaluate whether the designed product is easy to use, and to improve its usability, it is also essential to record the perceptions of the people, the movement characteristics, the operability, any mental or physical stress, and so on. There is a need for products and environments which are easily applicable to various people and utilizational setups. In this paper, we present the development of a tangible design review system which makes use of virtual reality technology to display a close model of the actual product, making readily available not only visual information but also the perception of volume and weight through the fusion of kinesthetic information, enabling many people to communicate easily while experiencing this virtual reality. Furthermore, the design review of universal design products which makes use of this system will be discussed.
  KOREAN SOC MECHANICAL ENGINEERS, English, Scientific journal
  DOI：https://doi.org/10.1007/s12206-009-1156-z
  DOI ID：10.1007/s12206-009-1156-z, ISSN：1738-494X, Web of Science ID：WOS:000273828400056
• Virtual reality-based casting skill transfer and human resource development　　　　　　　　　　　　　　　
  Keiichi Watanuki
  17TH INTERNATIONAL CONFERENCE ON ARTIFICIAL REALITY AND TELEXISTENCE, ICAT 2007, PROCEEDINGS, First page：316, Last page：317, 2007, [Reviewed]
  This paper proposes a new virtual reality-based skill transfer and human resource development system for casting design, which is composed of the explicit and tacit knowledge transfer systems using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, whereby a trainee may experience work in the virtual site operation. Provided that the trainee has gained explicit and tacit knowledge of casting through the multimedia-based knowledge transfer system, the immersive virtual environment catalyzes the internalization of knowledge and also enables the trainee to gain tacit knowledge before undergoing on-the-job training at a real-time operation site.
  IEEE COMPUTER SOC, English, International conference proceedings
  Web of Science ID：WOS:000253933000055
• Concurrent Modeling and Control for Mechatronics System Using Petri Nets　　　　　　　　　　　　　　　
  WATANUKI Keiichi; OHTAKI Hideyuki
  The proceedings of the JSME annual meeting, Volume：2000, First page：305, Last page：306, 2000
  Mechatronics systems are hybrid systems, which consist of mechanical system, electronic device, control system, computer software, and so on. For demands of higher precision and function enhancement, mechatronics systems have required parallel operation and cooperative control. This paper proposes a UML (Unified Modeling Language)/Petri net method for modeling and analysis of a mechatronics control system. Based on our UML/Petri nets representation, it is possible to generate the control program automatically. We have conducted simulations and confirmed that the proposed method UML/Petri nets is useful for control system analysis of mechatronics system.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecjo.2000.2.0_305
  DOI ID：10.1299/jsmemecjo.2000.2.0_305, CiNii Articles ID：110002522752, CiNii Books ID：AA11461871
• Analysis of nonlinear vibration of timing belt: (under meshing impact and varying tension by eccentric pulley)　　　　　　　　　　　　　　　
  Shaochang Li; Hideyuki Otaki; Keiichi Watanuki
  American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Volume：305, First page：271, Last page：277, 1995
  Analytical results are presented for nonlinear vibrations of a timing belt with parametric excitation in tension and meshing impact forces. Galerkin method is employed to the equation of motion. The steady-state responses are calculated using the harmonic balance method. The numerical results yield the following conclusions. The resonant amplitude increases with the increase of pulley speed for constant tension. In the case of variable tension, the resonant peak value varies with rate of variable tension, and increases with increase of tension. Amplitude reduction by means of periodic variation of tension is effective for tension and rate of variable tension.
  ASME, English, International conference proceedings
  ISSN：0277-027X, SCOPUS ID：0029426409
• グラフ理論による機械システムの設計法　　　　　　　　　　　　　　　
  綿貫 啓一; 大滝 英征; 石川 義雄; 矢野 智昭
  Volume：22, Number：6, First page：343, Last page：351, 1987
  Japanese
  DOI：https://doi.org/10.5988/jime1966.22.343
  DOI ID：10.5988/jime1966.22.343, ISSN：0388-3051, CiNii Articles ID：130001333993, CiNii Books ID：AN00196373

• Development of a torque limiter for the gear of an assistive walking device　　　　　　　　　　　　　　　
  ZHUANG Jyun-Rong; NAGAYOSHI Hayato; KONDO Hirotoshi; MURAMATSU Keiichi; WATANUKI Keiichi; TANAKA Eiichiro
  Journal of Advanced Mechanical Design, Systems, and Manufacturing (Web), Volume：11, Number：6, 2017
  ISSN：1881-3054, J-Global ID：201802265264369855
• 歩行補助機RE-Gaitの開発　　　　　　　　　　　　　　　
  田中 英一郎; 村松 慶一; 大澤 優輔; 綿貫 啓一; 三枝 省三; 弓削 類
  Volume：37回, First page：135, Last page：136, Nov. 2016
  Japanese
  医中誌Web ID：2017197860
• G-1-3 Sleepiness Evaluation of Driver using Near-Infrared Spectroscopy　　　　　　　　　　　　　　　
  OKABE Kenta; WATANUKI Keiichi; KAEDE Kazunori; HOU Lei; MURAMATSU Keiichi
  Conference on Information, Intelligence and Precision Equipment : IIP, Volume：2016, First page："G, Last page：1-3-1"-"G-1-3-3", 14 Mar. 2016
  A number of traffic accidents have occurred due to human errors such as inattentive driving and drowsy driving. Sleepiness is considered as one of the causes of these traffic accidents. For this reason, establishment of the sleepiness evaluation method during driving a car has been required. In this paper, we measured changes in cerebral blood flow during driving a car using a portable near-infrared spectroscopy device. The results show that oxygenated hemoglobin tends to decrease with the rise of the sleepiness level evaluated by facial expression and that there are negative correlations between oxygenated hemoglobin and sleepiness level in many trials. This suggests the possibility of sleepiness evaluation of a driver using near-infrared spectroscopy.
  The Japan Society of Mechanical Engineers, Japanese
  CiNii Articles ID：110010045031, CiNii Books ID：AA11902117
• Study of Practical Use of the Gear Tooth Surface Damage Diagnosis using a Laser Beam　　　　　　　　　　　　　　　
  TANAKA Eiichirou; NEMOTO Ryozo; NAKAJIMA Keyaki; OKABE Kazunari; TAKEBE Hitoshi; NAGAMURA Kazuteru; IKEJO Kiyotaka; HASHIMURA Shinji; MURAMATSU Keiichi; MAURAMATSU Keiichi
  The Proceedings of the Machine Design and Tribology Division meeting in JSME, Volume：2016, Number：0, First page：B4, Last page：4, 2016
  

  We developed an automatic damage diagnosis system of the gear tooth surface using a laser beam. Only attaching a laser sensor in a gear box, we can grasp the size and place of the damage on a gear tooth surface without using a rotary encoder. We confirmed the limit of this method against the velocity fluctuation. Furthermore, to utilize this system in the practical field, we developed a new system which was small, light weight, and low cost. The accuracy between new and conventional system was compared, and we confirmed the results were comparable level.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemdt.2016.16.B4-4
  DOI ID：10.1299/jsmemdt.2016.16.B4-4, CiNii Articles ID：130007152402
• 学習者の心的状態と生体情報に関する概念記述の試み　　　　　　　　　　　　　　　
  村松 慶一; 田中 英一郎; 綿貫 啓一; 松居 辰則
  Volume：2016, Number：0, First page：1C5OS13b6, Last page：1C5OS13b6, 2016
  Japanese
  DOI：https://doi.org/10.11517/pjsai.JSAI2016.0_1C5OS13b6
  DOI ID：10.11517/pjsai.JSAI2016.0_1C5OS13b6, CiNii Articles ID：130007424543
• Analysis of Relationship between Brain Activity and Confidence of Response while taking in Multiple-Choice Test　　　　　　　　　　　　　　　
  FUJIMURA Yuya; WATANUKI Keiichi; MURAMATSU Keiichi
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：J1210102, 2016
  

  In recent years, the research in intelligent educational systems has much interest in exploring data from educational settings to understand learners behavior and mental states. Therefore, the means to grasp psychological state of learner has been demanded from a more variety of physiological indicators. In present study, it aims to grasp how the learner approach to the question. By measuring the brain activated by using the multiple-choice questions, this study is to analyze the relationship between confidence and brain activation at the time of answer the question. As a result, in the prefrontal cortex frontal pole vicinity, tended to increase oxyHb when there is high confidence of the answer. In addition, answer time tended to be quick when there is high confidence of the answer. The result shows that it may be able to grasp the state of learner by measuring combination of the change of oxyHb and answer time.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.J1210102
  DOI ID：10.1299/jsmemecj.2016.J1210102, CiNii Articles ID：130007063164
• Development of RE-Gait® and Study of the Walking Promotion Method　　　　　　　　　　　　　　　
  TANAKA Eiichiro; OSAWA Yusuke; MURAMATSU Keiichi; WATANUKI Keiichi; SAEGUSA Shozo; YUGE Louis
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2016, Number：0, First page：S1110202, 2016
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2016.S1110202
  DOI ID：10.1299/jsmemecj.2016.S1110202, CiNii Articles ID：130007069952
• Conceptual Descriptions of Emotional State Evaluation for Development of Value Recognition Map　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; TANAKA Eiichiro; MATSUI Tatsunori; WATANUKI Keiichi
  The Proceedings of Design & Systems Conference, Volume：2016, Number：0, First page：1101, Last page：1101, 2016
  

  Recently, value creation from view point of service has been widespread. A service process is regarded as a kind of interaction between service providers and receivers. Sharing and managing such the knowledge on human Kansei are of growing significance to providing product's values focused on customers. However, any sufficiently-advanced technologies that realize such knowledge sharing and management have been established. One typical approach is to clarify and systematize concepts as an ontology which is a basis to describe knowledge. In the current study, we discuss a method to develop an ontology describing knowledge on human Kansei and introduce several existing ontologies. The ontology will serve as a useful reference to develop value recognition map and be of assistance to designers.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmedsd.2016.26.1101
  DOI ID：10.1299/jsmedsd.2016.26.1101, CiNii Articles ID：130007153927
• P-11 Experimental Study on Color Preference as Implicit Attitude toward Color Combinations(Proceedings of the 46^ Annual Meeting)　　　　　　　　　　　　　　　
  MURAMATSU,Keiichi; FANG,Siyuan; TANAKA,Eiichirou; WATANUKI,Keiichi; MATSUI,Tatsunori
  Volume：39, Number：5_SUPPLEMENT, First page：128, Last page：129, 26 Sep. 2015
  Japanese
  CiNii Articles ID：110009988955, CiNii Books ID：AN00313976
• 2307 Development and Evaluation of a Walking Assistance Apparatus for Practical Use　　　　　　　　　　　　　　　
  TANAKA Eiichirou; MURAMATSU Keiichi; WATANUKI Keiichi; SAEGUSA Shozo; YUGE Louis
  Volume：2015, Number：25, First page："2307, Last page：1"-"2307-7", 23 Sep. 2015
  We developed a walking assistance apparatus which can be used for neuro-rehabilitation of patients. This apparatus assists only the ankle joints of the equipped person and he/she can raise his/her leg by using the stretch reflex to bi-articular muscle. To confirm the effectiveness of the apparatus, we carried out the experiment for the patients of walking with wearing the apparatus, and the angle variation of the ankle was measured. From the results, by using this apparatus, the dorsiflexion and plantarflexion of the ankle joint of the equipped person can increase while walking. Furthermore, to grasp the lifetime limit of the apparatus, we developed the fatigue test apparatus for the power transmission device of the walking assistance apparatus: from the motor to the worm-helical gearbox through the flexible shaft. This apparatus supplies the power with the motor which is the same as the motor which is used in the walking apparatus. As a result, we could define the limit to replace of the flexible shaft according to the condition of the user.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：1348-0286, CiNii Articles ID：110010049862, CiNii Books ID：AA11901475
• S1180102 Development of the Motion Assistance Apparatus for the Promotion of Exercise for the Elderly　　　　　　　　　　　　　　　
  TANAKA Eiichirou; NIWA Ryosuke; OSAWA Kazuki; NAKAJIMA Keyaki; MURAMATSU Keiichi; WATANUKI Keiichi; SAEGUSA Shozo; YUGE Louis
  Mechanical Engineering Congress, Japan, Volume：2015, First page："S1180102, Last page：1"-"S1180102-5", 13 Sep. 2015
  We developed a motion assistance apparatus which can be used for neuro-rehabilitation of patients and for the promotion of exercise for the elderly. This apparatus assists only the ankle joints of the equipped person according to the posture of him/her while walking, getting up, sitting, and standing. To confirm the effectiveness of the apparatus, we carried out the experiment of walking with wearing the apparatus, and the angle variation of the ankle was measured. From the results, by using this apparatus, the dorsiflexion and plantarflexion of the ankle joint of the equipped person can increase while walking. Therefore, this apparatus can prevent stumbling and promote walking and various motions.
  The Japan Society of Mechanical Engineers, Japanese
  CiNii Articles ID：110010049568, CiNii Books ID：AA12588255
• P-11 Experimental Study on Color Preference as Implicit Attitude toward Color Combinations(Abstracts of the 46th Annual Meeting)　　　　　　　　　　　　　　　
  Muramatsu,Keiichi; Fang,Siyuan; Tanaka,Eiichirou; Watanuki,Keiichi; Matsui,Tatsunori
  Volume：39, Number：5, First page：204, 01 Sep. 2015
  Japanese
  CiNii Articles ID：110009987832, CiNii Books ID：AN00313976
• 歩行・起立・立位補助機の開発　　　　　　　　　　　　　　　
  田中 英一郎; 村松 慶一; 綿貫 啓一; 三枝 省三; 弓削 類
  Volume：2015, First page：45, Last page：45, Sep. 2015
  Japanese
  医中誌Web ID：2016064566
• J1210105 Descriptions of Concepts Related to Learning States in Learning Service Design　　　　　　　　　　　　　　　
  MURAMATSU Keiichi; KIMITA Koji; ISHII Takatoshi; NEMOTO Yutaro; TANAKA Eiichirou; WATANUKI Keiichi; MATSUI Tatsunori; SHIMOMURA Yoshiki
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2015, Number：0, First page：_J1210105, Last page：-_J1210105-, 2015
  Recently, view point of service has been widespread. In learning domains, service providers have been required to adopt it and to provide values co-created by teachers and learners. The current study aims conceptualization of learners states extracted from utterance contents agreed by a teacher (mentor) and a leaner along with conversation analysis in the previous study. As a result, we proposed ontological descriptions which clarify ASIS/TOBE states perceived by teachers and learners.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2015._J1210105-
  DOI ID：10.1299/jsmemecj.2015._J1210105-, J-Global ID：201602279798843665, CiNii Articles ID：110010049046
• Walking assistance apparatus enabled for neuro-rehabilitation of patients and its effectiveness　　　　　　　　　　　　　　　
  TANAKA Eiichirou; MURAMATSU Keiichi; WATANUKI Keiichi; SAEGUSA Shozo; YUGE Louis
  Mechanical Engineering Letters (Web), Volume：1, 2015
  ISSN：2189-5236, J-Global ID：201602202542642695
• 3204 Personalization of resistance torque feedback for operational assistance　　　　　　　　　　　　　　　
  KAEDE Kazunori; WSTANUKI Keiichi
  Volume：2013, Number：23, First page："3204, Last page：1"-"3204-5", 23 Oct. 2013
  The operational feelings of manual control levers are important to maneuver devices that need manual operations according to user's intentions. In this research, we built and tested a prototype of a manual control input lever of single degree of freedom using a magnetic particle brake in a rotational joint in place of the servo motors. And a one-way clutch is mounted on the rotating shaft so that the resisting torque of the magnetic particle brake is transferred to the lever in a one way. The drag torque was displayed haptically by appropriate actuation of the magnetic particle brake to support the manipulation. In order to assist in deciding the control input, the lever displays the resisting torque against user operations. The purpose of the presented system is to reduce the burden on the operation with respect to the intention of a user. We examine the influence of the resistance torque by psychophysical methods. The results of this research enable control input devices to adapt the ability of movement and preference of the user.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：1348-0286, CiNii Articles ID：110009934448, CiNii Books ID：AA11901475
• 2510 Development of Intuitive Remote Controlled Mericlone System　　　　　　　　　　　　　　　
  WSTANUKI Keiichi; KAEDE Kazunori; SAKAIDA Sennma; MURAKI Takeshi
  Volume：2013, Number：23, First page："2510, Last page：1"-"2510-6", 23 Oct. 2013
  In this study, we developed the intuitive remote controlled manipulator system using touch panel display and mouse, and we examined the possibility of the application to the extraction work of the shoot apical meristem of the plant. The shoot apical meristem does not have the infection of the virus in the plant body. Therefore we can get a Virus-free seedling having high production efficiency by culturing this part. This technique is called "mericlone" and is known widely in the agriculture world, but this is hard labor because of precision work with microscope. This system we have developed not only reduce the burden on worker but also provide high precision controlling and space saving. In this study, with LAMP method (loop-mediated isothermal amplification method), we have confirmed that there was no PVX (Potato virus X) in the potato meristem with primordia using our developed manipulator system The newly designed primer set can discriminate the result.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：1348-0286, CiNii Articles ID：110009934437, CiNii Books ID：AA11901475
• 1A1-V09 Assistance System for Hand-operated Lever Using Magnetic Particle Brake to Hold Tilted Position(Cooperation between Human and Machine(1))　　　　　　　　　　　　　　　
  KAEDE Kazunori; WATANUKI Keiichi
  Volume：2012, First page："1A1, Last page：V09(1)"-"1A1-V09(2)", 27 May 2012
  Practical realization of service robots is in demand to compensate for the shrinking workforce due to aging populations. Robotics technologies can help support our aging populations in both social and work environments. We developed a manual control link mechanism using magnetic particle brakes at each joint in place of servo motors. This mechanism can be used to support a positioning action passively. It meets the requirements of safety, low acoustic noise, and high efficiency. In this paper, we describe the design and the dynamics analysis of a prototype mechanism, including the self-weight compensation, which is realized by appropriate driving of the magnetic particle brakes, and the resistance torque display to hold tilted position of the link.
  The Japan Society of Mechanical Engineers, Japanese
  CiNii Articles ID：110009907426, CiNii Books ID：AA11902933
• 104 Analysis of Brain Activity for VR- and OJT-based Manufacturing Skills Transfer Using Near-Infrared Spectroscopy　　　　　　　　　　　　　　　
  WATANUKI Keiichi; HOU Kei; KAEDE Kazunori
  Volume：2011, First page：7, Last page：8, 18 Nov. 2011
  The Japan Society of Mechanical Engineers, Japanese
  CiNii Articles ID：110009663386, CiNii Books ID：AA11902489
• 2A1-C03 Direct Handling of the Link Mechanism by the Frictional Force Feedback Using Magnetic Particle Brakes(Cooperation between Human and Machine)　　　　　　　　　　　　　　　
  KAEDE Kazunori; WATANUKI Keiichi
  Volume：2011, First page："2A1, Last page：C03(1)"-"2A1-C03(2)", 26 May 2011
  There has been more interest in nursing-care robot in these days. Safety and reliability are required to these equipments. Additionally, low acoustic noise and energy saving performance are expected. In this research, we make a prototype of a link mechanism using magnetic particle brakes at each joint in place of servo motors. The magnetic particle brakes are proportional torque devices. The torque is controlled by varying the excitation current. This mechanism can hold up a target object and support positioning action passively. A dynamics analysis of the prototype is described at first and self weight compensation and force display to support positioning action is realized by appropriate actuation of magnetic particle brakes.
  The Japan Society of Mechanical Engineers, Japanese
  CiNii Articles ID：110009692054, CiNii Books ID：AA11902933
• バーチャルトレーニングとOJTを融合した技能伝承および人材育成　　　　　　　　　　　　　　　
  綿貫啓一
  Volume：44, Number：2, First page：77, Last page：92, 2009
• バーチャルトレーニングとOJTを融合した技能伝承および人材育成　　　　　　　　　　　　　　　
  綿貫啓一
  設計工学, Volume：44, Number：2, First page：77, Last page：92, 2009
• VR mediated skill transfer　　　　　　　　　　　　　　　
  Keiichi Watanuki
  Proceedings of the ASME Design Engineering Technical Conference, Volume：3, First page：1201, Last page：1206, 2008
  This paper proposes a new virtual reality mediated skill transfer and human resource development system for manufacturing technology and skill, which are composed of the explicit and tacit knowledge transfer systems using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, whereby a trainee may experience work in the virtual site operation. Provided that the trainee has gained explicit and tacit knowledge of casting through the multimedia-based knowledge transfer system, the immersive virtual environment catalyzes the internalization of knowledge and also enables the trainee to gain tacit knowledge before undergoing on-the-job training at a real-time operation site. Copyright © 2008 by ASME.
  English
  DOI：https://doi.org/10.1115/DETC2008-50153
  DOI ID：10.1115/DETC2008-50153, SCOPUS ID：81155151261
• VR Mediated Skill Transfer　　　　　　　　　　　　　　　
  K. Watanuki
  ASME 2008 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (IDETC/CIE 2008), First page：DETC2008-510153, 2008
• Knowledge Acquisition and Job Training for Fundamental Manufacturing Technologies and Skills by Using Immersive Virtual Environment(Knowledge Transfer)　　　　　　　　　　　　　　　
  WATANUKI Keiichi; Keiichi Watanuki; Graduate School of Science and Engineering Saitama University
  Journal of Japanese Society for Artificial Intelligence, Volume：22, Number：4, First page：480, Last page：490, 01 Jul. 2007
  Japanese
  ISSN：0912-8085, CiNii Articles ID：110006318298, CiNii Books ID：AN10067140
• A quick intelligent control system for a mobile robot to avoid collision with moving obstacles (vol 11, pg 569, 2005)　　　　　　　　　　　　　　　
  WH Yang; K Watanuki; S Zhao
  MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, Volume：11, Number：12, First page：1310, Last page：1310, Nov. 2005
  SPRINGER, English, Others
  DOI：https://doi.org/10.1007/s00542-005-0614-5
  DOI ID：10.1007/s00542-005-0614-5, ISSN：0946-7076, Web of Science ID：WOS:000233568100010
• A quick intelligent control system for a mobile robot to avoid collision with moving obstacles　　　　　　　　　　　　　　　
  WH Yang; K Watanuki; S Zhao
  MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, Volume：11, Number：8-10, First page：569, Last page：576, Aug. 2005
  This paper proposes a concept of initial minimum safety spacing (IMSS) for a robot to avoid the collision with moving obstacles from any direction. A quick intelligent control system based on IMSS to avoid the collision is presented. In the system, the necessary deceleration and steering can be predicted using the fuzzy reasoning, which only needs to input one variable of the collision danger degree judged according to IMSS. So, the membership functions and the fuzzy rules are very simple, the calculation time for the avoidance is reduced. These advantages are verified by the numerical simulation results.
  SPRINGER, English
  DOI：https://doi.org/10.1007/s00542-005-0556-y
  DOI ID：10.1007/s00542-005-0556-y, ISSN：0946-7076, Web of Science ID：WOS:000232416700004
• Development of Force Feedback and Haptic Devices for Knowledge Acquisition and Job Training in the Immersive Virtual Environment
  綿貫啓一
  Volume：16年度, First page：159, Last page：164, 2005
  The environment where Japanese industry has been paid with respect is changing tremendously due to the globalization of economics, where Asian countries are undergoing economical and technical development as well as advancing in information technology. For example, in the design of custom-made casting product, a designer who is lack of casting knowledge may not be able to produce a good design. In order to obtain a good design and manufacturing, it is necessary to equip the designer and manufacturer with a support system related to casting design or so called, knowledge transfer and creation system. This report describes a new virtual reality based knowledge acquisition and job training system for casting design, which is composed of the explicit and tacit knowledge transfer system using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, where by a trainee may experience himself in the virtual site operations. Provided that the trainee has gained explicit and tacit knowledge of casting through the multimedia-based knowledge transfer system, the immersive virtual environment serves as an internalization of knowledge and also enable the trainee to gain tacit knowledge before undergoing on the job training at real operation site.
  Japanese
  ISSN：1880-4446, CiNii Articles ID：120001370777
• 没入型仮想共有環境システムにおける熟練技能伝承用力覚および触覚提示装置の開発
  綿貫啓一
  総合研究機構研究プロジェクト研究成果報告書, Volume：16年度, First page：159, Last page：164, 2005
  The environment where Japanese industry has been paid with respect is changing tremendously due to the globalization of economics, where Asian countries are undergoing economical and technical development as well as advancing in information technology. For example, in the design of custom-made casting product, a designer who is lack of casting knowledge may not be able to produce a good design. In order to obtain a good design and manufacturing, it is necessary to equip the designer and manufacturer with a support system related to casting design or so called, knowledge transfer and creation system. This report describes a new virtual reality based knowledge acquisition and job training system for casting design, which is composed of the explicit and tacit knowledge transfer system using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, where by a trainee may experience himself in the virtual site operations. Provided that the trainee has gained explicit and tacit knowledge of casting through the multimedia-based knowledge transfer system, the immersive virtual environment serves as an internalization of knowledge and also enable the trainee to gain tacit knowledge before undergoing on the job training at real operation site.
  Japanese
  ISSN：1880-4446, CiNii Articles ID：120001370777
• VR空間における可視化モデル呈示方法とその没入感・現実感への効果　　　　　　　　　　　　　　　
  綿貫啓一
  Volume：14, First page：384, Last page：387, 2004
  CiNii Articles ID：20001365485
• Man-Machine Collaboration for Creative Activity(Review of Research Fruits by the Technical Committees of JSPE)　　　　　　　　　　　　　　　
  IGOSHI Masanori; WATANUKI Keiichi
  Journal of the Japan Society of Precision Engineering, Volume：69, Number：8, First page：1065, Last page：1070, 2003
  The Japan Society for Precision Engineering, Japanese
  DOI：https://doi.org/10.2493/jjspe.69.1065
  DOI ID：10.2493/jjspe.69.1065, ISSN：0912-0289, CiNii Articles ID：110001373570, CiNii Books ID：AN1003250X
• 創造的作業のための人と機械の協調環境　　　　　　　　　　　　　　　
  IGOSHI Masanori; WATANUKI Keiichi
  精密工学会誌, Volume：69, Number：8, First page：1065, Last page：1070, 2003
  The Japan Society for Precision Engineering, Japanese
  DOI：https://doi.org/10.2493/jjspe.69.1065
  DOI ID：10.2493/jjspe.69.1065, ISSN：0912-0289, CiNii Articles ID：110001373570, CiNii Books ID：AN1003250X
• Optimization of grinding performance of tumbling ball mill　　　　　　　　　　　　　　　
  G Hu; H Otaki; K Watanuki
  JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING, Volume：44, Number：1, First page：267, Last page：274, Mar. 2001
  Based on motion and impact analysis, a theoretical model is presented for optimization of grinding performance of a tumbling ball mill. The motion of ball media in the tumbling ball mill is analyzed. The impact parameters of the ball media caused by the falling motion are deduced. The impact and attrition grindabilities are studied. The grinding performance is expressed as the proportion of grindability of all collisions to that of the collisions of ball media in the are of the shell at a theoretically suitable speed, and is calculated from the point of view of the separation layer. The mathematical model is established and program coding is implemented to optimize grinding performance for the tumbling bail mill. An example of design calculations is given which shows that the grinding performance under the optimized operation parameters is improved significantly.
  JAPAN SOC MECHANICAL ENGINEERS, English
  DOI：https://doi.org/10.1299/jsmec.44.267
  DOI ID：10.1299/jsmec.44.267, ISSN：1344-7653, CiNii Articles ID：110004164262, Web of Science ID：WOS:000168481300035
• 5層積層梁の振動に関する研究　　　　　　　　　　　　　　　
  大滝 英征; 張 栄; 綿貫 啓一
  Volume：2000, Number：1, First page：131, Last page：136, 19 May 2000
  Japanese
  CiNii Articles ID：10004537309, CiNii Books ID：AA1158965X
• Some Considerations on the Optimization Model of Charge Motion in Tumbling Ball Mill　　　　　　　　　　　　　　　
  胡 国明; 大滝 英征; 綿貫 啓一
  Volume：2000, Number：1, First page：113, Last page：118, 19 May 2000
  English
  CiNii Articles ID：10004537279, CiNii Books ID：AA1158965X
• Stress Analysis of Brittle Particles in Double Impact　　　　　　　　　　　　　　　
  胡 国明; 大滝 英征; 綿貫 啓一
  Volume：2000, Number：1, First page：107, Last page：112, 19 May 2000
  Japanese
  CiNii Articles ID：10004537270, CiNii Books ID：AA1158965X
• 接着剤の紙表面への付着と強度　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一; 長坂 保美
  Volume：2000, Number：1, First page：33, Last page：36, 19 May 2000
  Japanese
  CiNii Articles ID：10004537192, CiNii Books ID：AA1158965X
• 組立/分解工程のモデル化および作業シミュレーション　　　　　　　　　　　　　　　
  綿貫 啓一; 上山 英夫; 大滝 英征
  Volume：2000, Number：1, First page：13, Last page：16, 19 May 2000
  Japanese
  CiNii Articles ID：10004537176, CiNii Books ID：AA1158965X
• 紙製ハニカム構造の強度　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一; 長坂 保美
  Volume：2000, Number：1, First page：27, Last page：32, 19 May 2000
  Japanese
  CiNii Articles ID：10004537191, CiNii Books ID：AA1158965X
• 連結車両のモデル化　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一; 長坂 保美
  Volume：2000, Number：1, First page：23, Last page：26, 19 May 2000
  Japanese
  CiNii Articles ID：10004537190, CiNii Books ID：AA1158965X
• 218 Application to Color Uneven Area Defects Inspection on Machine Parts by Using Wavelet Transform　　　　　　　　　　　　　　　
  WATANUKI Keiichi; ENDO Shin; OHTAKI Hideyuki
  Volume：2000, First page：81, Last page：82, 2000
  Recently, industries cannot survive worldwide competition unless they introduce new products with better quality, at lower cost, and with shorter lead time in the production processes. But in the testing process it has not been automated, and the improvement is required. However, it is difficult to attempt the automation for manifold parts in the testing process, and to detect the color uneven area by the simple image processing. Therefore, the inspection is mainly carried out by the visual observation. The automation of the testing process is important thing in view of improvement of the inspection accuracy and shorter lead time. Then, this paper proposes new feature extraction and defects inspection method for slight defects and color uneven area of machine parts by using Wavelet transform. Using this method, the feature extraction filter and defects inspection system for color uneven area of machine parts are developed, and the color uneven area on the black rubber piece is detected. Our experiments have confirmed that the proposed methods are useful for color uneven area defects inspection for machine parts.
  Japanese
  CiNii Articles ID：110002500032, CiNii Books ID：AA11902219
• 紙製構造物の基礎的研究　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一
  Volume：1999, Number：1, First page：33, Last page：36, May 1999
  Japanese
  CiNii Articles ID：10002802775, CiNii Books ID：AA1158965X
• 円孔を有する無限体に生じる衝撃応力　　　　　　　　　　　　　　　
  大滝 英征; 呉 若珊; 綿貫 啓一
  Volume：1999, Number：1, First page：41, Last page：44, May 1999
  Japanese
  CiNii Articles ID：10002802777, CiNii Books ID：AA1158965X
• 紙の衝撃強度に関する一考察　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一
  Volume：1999, Number：1, First page：37, Last page：40, May 1999
  Japanese
  CiNii Articles ID：10002802776, CiNii Books ID：AA1158965X
• 紙製梁同士の接合部における補強材の強度　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一
  Volume：1999, Number：1, First page：45, Last page：46, May 1999
  Japanese
  CiNii Articles ID：10002802778, CiNii Books ID：AA1158965X
• 柔軟性を有する多リンクロボットアームの衝突時における振動解析　　　　　　　　　　　　　　　
  林 敏; 大滝 英征; 綿貫 啓一
  Volume：1999, Number：1, First page：67, Last page：70, May 1999
  Japanese
  CiNii Articles ID：10002802810, CiNii Books ID：AA1158965X
• Dynamic Behaviour of the Article Suspended by the Balls which are made from Paper　　　　　　　　　　　　　　　
  OHTAKI Hideyuki; WATANUKI Keiichi
  Journal of Japan Society for Design Engineering, Volume：34, Number：4, First page：129, Last page：133, Apr. 1999
  Japanese
  ISSN：0919-2948, CiNii Articles ID：10002249119, CiNii Books ID：AN10402165
• 中小企業向けの生産管理システム構築　　　　　　　　　　　　　　　
  大滝 英征; 李 紹昌; 綿貫 啓一
  Volume：1998, Number：1, First page：17, Last page：20, May 1998
  Japanese
  CiNii Articles ID：10002802591, CiNii Books ID：AA1158965X
• ペトリネットによるジョブショップ型生産システムの表現および最適化　　　　　　　　　　　　　　　
  綿貫 啓一; 村田 忠夫; 大滝 英征
  Volume：1998, Number：1, First page：13, Last page：16, May 1998
  Japanese
  CiNii Articles ID：10002802584, CiNii Books ID：AA1158965X
• 柔軟性を持つロボットアームの衝突振動解析　　　　　　　　　　　　　　　
  林 敏; 大滝 英征; 綿貫 啓一
  Volume：1998, Number：1, First page：65, Last page：68, May 1998
  Japanese
  CiNii Articles ID：10002802638, CiNii Books ID：AA1158965X
• 遺伝的アルゴリズムによるCAD図面の認識および部品の抽出　　　　　　　　　　　　　　　
  綿貫 啓一; 大滝 英征; 村本 浩
  Volume：1997, Number：2, First page：113, Last page：116, 01 Oct. 1997
  Japanese
  CiNii Articles ID：10002802504, CiNii Books ID：AA1158965X
• ペトリネットによる機械の設計・生産スケジューリング　　　　　　　　　　　　　　　
  綿貫 啓一; 村田 忠夫; 大滝 英征
  Volume：1997, Number：2, First page：107, Last page：112, 01 Oct. 1997
  Japanese
  CiNii Articles ID：10002802493, CiNii Books ID：AA1158965X
• 紙の折り曲げ　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一
  Volume：1997, Number：1, First page：53, Last page：55, May 1997
  Japanese
  CiNii Articles ID：10002802343, CiNii Books ID：AA1158965X
• 丸めた紙群による物体の支持　　　　　　　　　　　　　　　
  大滝 英征; 綿貫 啓一
  Volume：1997, Number：1, First page：31, Last page：34, May 1997
  Japanese
  CiNii Articles ID：10002802327, CiNii Books ID：AA1158965X
• マニピュレータの衝突解析　　　　　　　　　　　　　　　
  林 敏; 大滝 英征; 綿貫 啓一
  Volume：1996, Number：2, First page：121, Last page：124, 01 Oct. 1996
  Japanese
  CiNii Articles ID：10002802249, CiNii Books ID：AA1158965X
• Driving of an Actuator Using Muscular Voltage　　　　　　　　　　　　　　　
  OTAKI Hideyuki; WATANUKI Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：62, Number：601, First page：144, Last page：150, 25 Sep. 1996
  It is difficult to drive an actuator using muscular voltage measured by the conventional method, which is based on medical treatment and is not intended to elucidate the movement of an arm. In this paper, we propose a suitable measuring method to elucidate the movement by changing the position of an electrode. We also propose two evaluation values calculated from measured voltage to represent the movement of an arm. Using a fuzzy method based on these values, we can represent the movement of an arm fairly well. We applied this fuzzy method to driving an arm-type actuator, which can reproduce the movement of an arm.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002382843, CiNii Books ID：AN00187463
• Analysis of Vibration of Timing Belt (Under a Moving Load)　　　　　　　　　　　　　　　
  LI Shaochang; OHTAKI Hideyuki; WATANUKI Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：62, Number：595, First page：1113, Last page：1119, 25 Mar. 1996
  Analytical results are presented for vibration of a wide timing belt under a moving load. The equation of motion is derived from Hamilton's principle, and approximate solutions to the basic equation are obtained using the Galerkin method. The steady-state responses are calculated using the harmonic balance method. Analytical results are presented which show the contributions of moving load position and moving load value to response curves. The response amplitude that varies with the width of timing belt. In the case of variable velocity, the response value shows very complicated behavior with pulley rotation. The response curves of vibration are greatly influenced by the moving load and the velocity.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002382560, CiNii Books ID：AN00187463
• Movement Control of a Small Jumping Machine　　　　　　　　　　　　　　　
  OHTAKI Hideyuki; WATANUKI Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：61, Number：590, First page：4075, Last page：4081, 25 Oct. 1995
  We have developed a small jumping machine. For such machines, it is difficult to control the direction and velocity of motion by using conventional control devices, since there is not sufficient space to install them. Therefore we must develop another suitable control method. In this report, we investigate the following and movement control method of a small jumping target and elucidate its performance by analyzing graphical data extracted using a CCD camera. We propose a method of creating a virtual eye on the computer display, with which to follow a target. Moreover, we propose a controling method of jumping direction and velocity.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002382146, CiNii Books ID：AN00187463
• Analysis of Nonlinear Oscillations of Timing Belt (3rd Report, Wide Timing Belt)　　　　　　　　　　　　　　　
  LI Shaochang; OTAKI Hideyuki; WATANUKI Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：61, Number：585, First page：2037, Last page：2043, 25 May 1995
  Analytical results are presented for nonlinear vibrations of a wide timing belt with parametric excitation in tension and meshing impact forces. The equation of motion is developed from Hamilton's principle, and approximate solutions to the basic equation are obtained using the Galerkin method. The steady-state responses are calculated using the harmonic balance method. Analytical results are presented which show the contributions of pulley speed and tension to natural frequencies. The resonant amplitude varies with cross section y. In the case of variable tension, the resonant peak value varies with the rates of variable tension, and tension. Amplitude reduction by means of periodic variation of tension is effective for tension and rate of variable tension.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002381893, CiNii Books ID：AN00187463
• Analysis of Nonlinear Oscillations of Timing Belt : 2nd Report, Under Meshing Impact and Varying Tension by Eccentric Pully　　　　　　　　　　　　　　　
  Li Shao-Chang; Otaki Hideyuki; Watanuki Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：60, Number：575, First page：p2415, Last page：2421, Jul. 1994
  Analytical results are presented for nonlinear vibrations of a timing belt with parametric excitation in tension and meshing impact forces, with application of the Galerkin method to the basic equation. The steady-state responses are calculated using the harmonic balance method. The numerical results yielcl the following conclusions. The resonant amplitude increases with the increase of pully speed for constant tension. In the case of variable tension, the resonant peak value varies with rate of variable tension, and inceases with increase of tension. Amplitude reduction by means of periodic variation of tension is effective for tension and rate of variable tension.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002381527, CiNii Books ID：AN00187463
• Analysis of Nonlinear Oscillations of the Timing Belt : 1st Report, Regions of Resonance of the Timing Belt　　　　　　　　　　　　　　　
  Li Shao-Chang; Otaki Hideyuki; Ishikawa Yoshio; Watanuki Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：59, Number：568, First page：p3902, Last page：3906, Dec. 1993
  The tension in timing belts is subject to periodic fluctuation. This is brought about by factors such as an eccentric pulley and error of one pitch of the pulley, etc. This paper presents the regions of resonance of a timing belt. The equation of an axially moving timing belt with tension of periodic variation is developed. For theoretical analysis, the perturbation method of multiple scales is used. A study is carried on the instability regions with subharmonic and summonic types of parametric resonance. The effects of various system parameters, such as the timing belt speed and the gyroscopic matrix, upon the instability regions have been studied.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002380840, CiNii Books ID：AN00187463
• Mechatronics Education and Our Participation in Robot Contest
  綿貫 啓一; 大滝 英征
  CACS FORUM, Volume：13, First page：42, Last page：46, Dec. 1993
  In our department of mechanical engineering, in connect with mechatronics education which is a part of machine design and drawing lecture, we always participate actively in NHK's Idea Robot Contest and the Contest of "Sumo"Robot, and have been successfully awarded many prizes. In this article we wish to introduce program of mechatronics education and our participation in robot contest.
  Japanese
  CiNii Articles ID：120001788036
• Automatic Generation of Equations of Motion for Mechanical System Using Linear Graph Theory : Application to Mechanical Vibration Systems　　　　　　　　　　　　　　　
  Watanuki Keiichi; Ohtaki Hideyuki; Ishikawa Yoshio; Urashima Yoshihito; Maruyama Kazuo
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：59, Number：562, First page：p1960, Last page：1965, Jun. 1993
  Recently, the importance of system design in the field of mechanical engineering has been increasingly recognized. However suitable and useful methods for machine design are not yet established. An analytical method of the dynamic characteristics in the mechanical system, a method utilizing linear graph theory, is proposed. In this paper, for practical use of this analytical method, a program is developed which can analyze the dynamic characteristics automatically. As an example, in the mechanical vibration system, with the arrangement of the elements on the computer display, the system graph and the equations of motion are automatically produced by means of a cut-set matrix, and the dynamic characteristics of the system are derived by means of a computer algebraic method.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002381106, CiNii Books ID：AN00187463
• Structures Which Support the Parabolic Structural Surface　　　　　　　　　　　　　　　
  OHTAKI Hideyuki; ISHIKAWA Yoshio; WATANUKI Keiichi
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：58, Number：555, First page：p3422, Last page：3428, Nov. 1992
  Structures which can be modified to make fine adjustments to arbitrary structural surfaces have been investigated in the construction of space structures. Considering the geometrical configuration of these structures, the. same concept might be applied to structures such as those which are used in collecting sunlight. In this paper, we describe a designing method by which to build to build structures that can be extended and adapted to a parabolic structural surface.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002380590, CiNii Books ID：AN00187463
• Automatization of Dynamic Characteristic Analysis of Mechanical System (Application to the Motion Transmitting Mechanism)　　　　　　　　　　　　　　　
  WATANUKI Keiichi; MARUYAMA Kazuo; OHTAKI Hideyuki
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：58, Number：548, First page：p1292, Last page：1296, Apr. 1992
  Recently, the importance of system design in the field of mechanical engineering has been increasingly recognized. But suitable and useful methods for machine design are not yet established. An analytical method for the dynamic characteristics in the mechanical system, a method using linear graph theory, is proposed. In this paper, for the purpose of the practical use of this analytical method, a program which can analyze the dynamic characteristic automatically is developed. As an example, in the motion transmitting mechanism arranging the elements on the display of the computer, the system graph and the tableau equation are automatically produced, and the dynamic characteristics of the system are derived.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002380305, CiNii Books ID：AN00187463
• Analysis of Dynamic Behaviour for a Lead Screw-Type Positioning System Using Linear Graph Theory : Transient Response Analysis of Feedback Control System and Reduction of Positioning Time　　　　　　　　　　　　　　　
  WATANUKI Keiichi; MARUYAMA Kazuo; OHTAKI Hideyuki
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：58, Number：546, First page：p538, Last page：543, Feb. 1992
  Recently, the fine positioning system has been used in the mechanical industry, and has required the improvement of positioning accuracy, reduction of positioning time, increase of carrying capacity and so on. However, the existing control method for the positioning stage may cause delay of phase response or residual vibration when disturbance or overweight acts on the system or stage drives at high speed. In order to obtain the optimum control inputs, it is necessary to grasp the dynamic behaviour of the system precisely. First, this paper deals with the transient response of the positioning stage using the linear graph theory reported in the previous papers. The simulated results of transient response of the positioning stage are compared with the experimental ones, and they are found to be in good agreement. Next, a procedure which can reduce the settling time of positioning is proposed by utilizing this method. As a result, this procedure was able to reduce the settling time by 55%, as compared with only proportional control.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002380194, CiNii Books ID：AN00187463
• 跳躍による微小移動装置の特性　　　　　　　　　　　　　　　
  山本 一幸; 大滝 英征; 石川 義雄; 綿貫 啓一
  Volume：58, Number：551, First page：2096, Last page：2102, 1992
  DOI：https://doi.org/10.1299/kikaic.58.2096
  DOI ID：10.1299/kikaic.58.2096, ISSN：0387-5024, CiNii Articles ID：110002380427
• 跳躍による微小移動装置の特性　　　　　　　　　　　　　　　
  Kazuyuki YAMAMOTO; Hideyuki OTAKI; Yoshio ISHIKAWA; Keiichi WATANUKI
  日本機械学会論文集(C編), Volume：58, Number：551, First page：2096, Last page：2102, 1992
  DOI：https://doi.org/10.1299/kikaic.58.2096
  DOI ID：10.1299/kikaic.58.2096, ISSN：0387-5024, CiNii Articles ID：110002380427
• Analysis of Dynamic Behaviour for a Lead Screw-Type Positioning System Using Linear Graph Theory　　　　　　　　　　　　　　　
  WATAMUKI Keiichi; MARUYAMA Kazuo; OHTAKI Hideyuki
  Transactions of the Japan Society of Mechanical Engineers C, Volume：56, Number：526, First page：p1570, Last page：1575, Jun. 1990
  Recently, the fine positioning system has come to be used in the mechanical industry, and has required improvement of positioning accuracy, reduction of positioning time, increase of carrying capacity and so on. However, the existing control method for the positioning stage may cause delay of phase response or residual vibration when disturbance or overweight acts on the system or stage drives at a high speed. In order to obtain the optimum control inputs, it is necessary to grasp the dynamic behaviour of the system exactly. This paper deals with the transient response of the positioning stage using the linear graph theory which has been reported previously. The simulated results are compared with the experimental ones, and they are found to be in good agreement. Through these studies, it is concluded that this method is useful in analysing the dynamic behaviour of a positioning system.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002379475, CiNii Books ID：AN00187463
• 飽和液を利用した推進装置　　　　　　　　　　　　　　　
  Volume：25, Number：11, First page：458, Last page：463, 1990
• 飽和液を利用した推進装置　　　　　　　　　　　　　　　
  日本設計工学会誌, Volume：25, Number：11, First page：458, Last page：463, 1990
• Analysis of Dynamic Behaviour for Power Transmission Mechanism Using Linear Graph Theory　　　　　　　　　　　　　　　
  SAE 1987 Transactions, Volume：3, Number：871975, First page：1176, Last page：1183, 1988
• An Analysis of Dynamics Behavior for a Power Transmission Mechanism Using Linear Graph Theory : In the Case of Consideration of Motor, Support and Gear　　　　　　　　　　　　　　　
  WATANUKI Keiichi; OTAKI Hideyuki; ISHIKAWA Yoshio
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：53, Number：494, First page：p2135, Last page：2142, Oct. 1987
  The importance of system design in the field of mechanical engineering has been increasingly recognized recently. But suitable and useful methods for machine design are not yet established. So we must derive easy and useful designing methods for each machine element. In the previous report, we derived a new designing method by linear graph theory and analyzed the results of the dynamic behaviour of a power transmission mechanism as an example. In the report, we understand that the mechanisms which are subject to restrictions of high accuracy and high performance must be designed by considering the characteristic of each machine element. This report deals with a more general power transmission mechanism containing a motor, bearing, support and so on, and analyzes the results of dynamic behaviour. Provided that the analytical model and system graph as in this report are prepared for the mechanism, the performance of the mechanism is easily grasped by this method.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002390386, CiNii Books ID：AN00187463
• Application to Linear Graph Theory for CAE of Power Transmission Mechanism　　　　　　　　　　　　　　　
  WATANUKI Keiichi; OTAKI Hideyuki; ISHIKAWA Yoshio; YANO Tomoaki
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：53, Number：486, First page：p494, Last page：498, Feb. 1987
  At the present time, the machines with high accuracy and performance tend to be designed by CAE methods. But suitable and useful CAE methods are not established for all machine parts and elements. Thus, we must derive easy and useful methods for each machine part. This report deals with a new method using linear graph theory as one CAE method and analyzes the results of dynamic behaviour concerning power transmission mechanism. By this method, addition and deletion of machine elements are made flexibly, and performances of the system are analyzed rapidly. So this method is effective for extensive machine design.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002390008, CiNii Books ID：AN00187463
• Analysis of dynamic behaviour for power transmission mechanism using linear graph theory　　　　　　　　　　　　　　　
  Keiichi Watanuki; Hideyuki Ohtaki; Yoshio Ishikawa
  SAE Technical Papers, Volume：3, Number：871975, First page：1176, Last page：1183, 1987
  The importance of system design in the field of mechanical engineering has been increasingly recognized recently. But suitable and useful methods for machine design are not yet established. So we must derive easy and useful designing methods for each machine element. We derived a new designing method by linear graph theory and analyzed the results of the dynamic behaviour of a power transmission mechanism as an example. And we understand that the mechanisms which are subject to restrictions of high accuracy and high performance must be designed by considering the characteristic of each machine element. This report deals with a more general power transmission mechanism containing a motor, bearing, support an so on, and analyzes the results of dynamic behaviour. Provided that the analytical model and system graph as in this report are prepared for the mechanism, the performance of the mechanism is easily grasped by this method. Copyright © 1987 Society of Automotive Engineers, Inc.
  English
  DOI：https://doi.org/10.4271/871975
  DOI ID：10.4271/871975, SCOPUS ID：84877493532
• Stress Distribution and Deformation of Some Cams　　　　　　　　　　　　　　　
  WATANUKI Keiichi; OTAKI Hideyuki; ISHIKAWA Yoshio
  Transactions of the Japan Society of Mechanical Engineers. Series C., Volume：51, Number：472, First page：p3281, Last page：3287, Dec. 1985
  rights: 社団法人日本機械学会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: IsVersionOf: http://ci.nii.ac.jp/naid/110002388950/各種自動機械に用いられている位置決め装置の構成要素であるカムなどは,機械の高精度高性能化に伴って,多種多様な形状のものが使用されるようになってきている.しかしこのような機械要素の応力分布および変形に関する研究はほとんどなされていない.そこで,本報では,複素応力関数を利用して理論解析を行い,種々の形状のカムについて応力分布および変形を求めた.
  The Japan Society of Mechanical Engineers, Japanese
  ISSN：0387-5024, CiNii Articles ID：110002388950, CiNii Books ID：AN00187463

• パートナーロボット資料集成 第3編 現代ロボット図鑑 サイバーアシスト・マイスター・ロボット （印刷中）　　　　　　　　　　　　　　　
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• VR空間における鋳造技能獲得のための力覚呈示装置の開発 日本設計工学会平成17年度春季研究発表講演会講演論文集　　　　　　　　　　　　　　　
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• Development of the Internet-Based Customer-oriented Ordering System Framework for Complicated Mechanical Product JSME International Journal, Series C　　　　　　　　　　　　　　　
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• パートナーロボット資料集成 第3編 現代ロボット図鑑 サイバーアシスト・マイスター・ロボット （印刷中）　　　　　　　　　　　　　　　
  ブッカーズ, 2005
• VR空間における鋳造技能獲得のための力覚呈示装置の開発 日本設計工学会平成17年度春季研究発表講演会講演論文集　　　　　　　　　　　　　　　
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• Development of the Internet-Based Customer-oriented Ordering System Framework for Complicated Mechanical Product JSME International Journal, Series C　　　　　　　　　　　　　　　
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• CAVEを用いた熟練技能伝承の内面化 第8回CAVE研究会資料　　　　　　　　　　　　　　　
  2003
• ２足歩行ロボットを動かそう！ 埼玉大学工学部一日体験入学テキスト　　　　　　　　　　　　　　　
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• 高度マルチメディア技術を用いた技能伝承システムの構築 ファナックFAロボット財団平成13年度の助成による研究開発の報告　　　　　　　　　　　　　　　
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• 職人の技を立体映像で伝承 NHKテレビおはよう日本，10月20日放映　　　　　　　　　　　　　　　
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• CAVEを用いた熟練技能伝承の内面化 第8回CAVE研究会資料　　　　　　　　　　　　　　　
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• ２足歩行ロボットを動かそう！ 埼玉大学工学部一日体験入学テキスト　　　　　　　　　　　　　　　
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• 高度マルチメディア技術を用いた技能伝承システムの構築 ファナックFAロボット財団平成13年度の助成による研究開発の報告　　　　　　　　　　　　　　　
  2003
• 職人の技を立体映像で伝承 NHKテレビおはよう日本，10月20日放映　　　　　　　　　　　　　　　
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• Motion Analysis of a Tumbling Ball Mill Based on Non-Linear Optimization Minerals Engineering　　　　　　　　　　　　　　　
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• インターネットベースCADの現状 InterLab　　　　　　　　　　　　　　　
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• Motion Analysis of a Tumbling Ball Mill Based on Non-Linear Optimization Minerals Engineering　　　　　　　　　　　　　　　
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• インターネットベースCADの現状 InterLab　　　　　　　　　　　　　　　
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• C言語の基礎とプログラミングテクニック　　　　　　　　　　　　　　　
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• C言語の基礎とプログラミングテクニック　　　　　　　　　　　　　　　
  総合技術センター, 1996
• メカトロニクスシステムの設計･制御技法－よりよいロボット・アクチュエータ・センサ・制御回路の作り方－　　　　　　　　　　　　　　　
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• エンジニアのためのCプログラミング入門　　　　　　　　　　　　　　　
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• DelphiによるWindowsプログラミング入門　　　　　　　　　　　　　　　
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• 暮らしの中のハイテク技術－キッチン編－ 埼玉交流ソサエティ定例会講演資料　　　　　　　　　　　　　　　
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• Data Structure of Knowledge Base Based on Object Model Japanese Journal of Advanced Automation Technology　　　　　　　　　　　　　　　
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• メカトロニクスシステムの設計･制御技法－よりよいロボット・アクチュエータ・センサ・制御回路の作り方－　　　　　　　　　　　　　　　
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• 暮らしの中のハイテク技術－キッチン編－ 埼玉交流ソサエティ定例会講演資料　　　　　　　　　　　　　　　
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• Data Structure of Knowledge Base Based on Object Model Japanese Journal of Advanced Automation Technology　　　　　　　　　　　　　　　
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• CIMを支えるFA機器の動向　　　　　　　　　　　　　　　
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• CIMを支えるFA機器の動向　　　　　　　　　　　　　　　
  日刊工業新聞社, 1994

• 工業高校における組み込みシステム技術者育成の取組み事例　　　　　　　　　　　　　　　
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• 工業高校における組み込みシステム技術者育成の取組み事例　　　　　　　　　　　　　　　
  日本機械学会関東支部第15期総会講演会講演論文集, 2009
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• Mixed Reality-Based Casting Skill Transfer and Human Resource Development　　　　　　　　　　　　　　　
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• Knowledge Acquisition and Job Training for Advanced Technical Skills Using Immersive Virtual Environment　　　　　　　　　　　　　　　
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• 没入型仮想共有環境システムによる設計・製造知識の獲得および職人技の伝承　　　　　　　　　　　　　　　
  2005
• 室内空調用コントローラのハードウェア進化 （講演予定）　　　　　　　　　　　　　　　
  日本冷凍空調学会年次大会講演論文集, 2005
• 顧客志向受注システムのためのレコメンド手法の検証　　　　　　　　　　　　　　　
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• オントロジーによる機械設計知識の体系化のための表現　　　　　　　　　　　　　　　
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• 組立／分解性を考慮した製品設計およびバーチャルリアリティ空間における製品評価　　　　　　　　　　　　　　　
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• VRによる匠の技の伝承　　　　　　　　　　　　　　　
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• バーチャルリアリティ技術を用いた設計・製造知識の獲得および人材育成　　　　　　　　　　　　　　　
  日本機械学会2005年度年次大会講演資料集, 2005
• 室内空調用コントローラの進化的自動設計と実装方法の検討　　　　　　　　　　　　　　　
  第39回空調調和・冷凍連合講演会講演論文集, 2005
• 没入型仮想共有環境システムにおける熟練技能伝承用力覚および触覚呈示装置の開発　　　　　　　　　　　　　　　
  埼玉大学紀要工学部, 2005
• Characteristics of Journal Bearings Lubricated with Ferrofluid in Different Magnetic Fields　　　　　　　　　　　　　　　
  Proceedings of the First KSME-JSME Joint International Conference on Manufacturing, Machine Design and Tribology, CD-ROM THB-104, 2005
• Knowledge Acquisition and Job Training for Advanced Technical Skills Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  Proceedings of the First KSME-JSME Joint International Conference on Manufacturing, Machine Design and Tribology, CD-ROM DLM-401, 2005
• Knowledge Acquisition and Job Training for Advanced Technical Skills Using Cyber Assist Meister Robot　　　　　　　　　　　　　　　
  Proceedings of the 36th International Symposium on Robotics, CD-ROM TH2COS-2, 2005
• Virtual Reality Based Knowledge Transfer for Advanced Casting Skills　　　　　　　　　　　　　　　
  Proceedings of the 1st International Conference on Design Engineering and Science, 2005
• Multimedia Based e-Learning and Virtual Reality Based Job Training for Skilled Workers　　　　　　　　　　　　　　　
  Proceedings of the 10th International Telework Workshop and the 2nd ITA Conference, 2005
• 没入型仮想共有環境システムによる設計・製造知識の獲得および職人技の伝承　　　　　　　　　　　　　　　
  2005年情報学シンポジウム講演論文集, 2005
• 可搬型仮想共有環境システムの開発および鋳造方案支援への適用　　　　　　　　　　　　　　　
  2004
• 実システムへの実装を考慮した室内空調制御器の機能創発　　　　　　　　　　　　　　　
  2004
• VR空間における鋳造技能獲得のための力覚呈示方法の検討　　　　　　　　　　　　　　　
  2004
• 視覚情報によるロボットアーム制御に関する教育事例　　　　　　　　　　　　　　　
  2004
• バーチャルリアリティを用いたデザインレビューに関する教育事例　　　　　　　　　　　　　　　
  2004
• 可搬型仮想共有環境システムを用いた技術者教育支援　　　　　　　　　　　　　　　
  2004
• 可搬型仮想共有環境システムによる鋳造方案設計支援　　　　　　　　　　　　　　　
  2004
• 実システムでの実時間を考慮した室内空調制御器の進化的機能形成　　　　　　　　　　　　　　　
  2004
• ファジイ理論およびデータマイニングによるインターネット顧客志向受注システムのための仕様選択支援　　　　　　　　　　　　　　　
  2004
• オントロジーに基づく機械設計知識の構造化および共有化(eラーニングへの適用)　　　　　　　　　　　　　　　
  2004
• VR空間における可視化モデル呈示方法とその没入感・現実感への効果　　　　　　　　　　　　　　　
  2004
• 組立／分解性および締結性能を考慮したカンチレバーフック形スナップフィット形状の最適化　　　　　　　　　　　　　　　
  2004
• 磁性流体を潤滑剤として用いたジャーナル軸受の動特性　　　　　　　　　　　　　　　
  2004
• レンズモデルによる鋳造作業者の造型動作の評価　　　　　　　　　　　　　　　
  2004
• セマンテッィクウェブによる機械設計知識の構造化および共有化　　　　　　　　　　　　　　　
  2004
• インターネットベース顧客志向受注システムの構築（要求仕様と生産能力を考慮した製品実現性提示アルゴリズム）　　　　　　　　　　　　　　　
  2004
• XMLベース遠隔計測システムにおけるデータベースの構築　　　　　　　　　　　　　　　
  2004
• 没入型仮想共有環境を用いた鋳造方案支援システムのGUI構築　　　　　　　　　　　　　　　
  2004
• 歩行負担を考慮した歩行補助杖の最適設計　　　　　　　　　　　　　　　
  2004
• 磁性流体ジャーナル軸受の特性に及ぼす磁場分布の影響　　　　　　　　　　　　　　　
  2004
• 可搬型仮想共有環境システムによる鋳造方案の知識獲得および内面化　　　　　　　　　　　　　　　
  2004
• システム同定を用いた車室内空調の快適性を考慮した制御器設計支援　　　　　　　　　　　　　　　
  2004
• 製造業における技術・技能の伝承および知識創出　　　　　　　　　　　　　　　
  2004
• 没入型仮想共有環境による鋳造方案支援システムの構築　　　　　　　　　　　　　　　
  2004
• 産・学・官 パワー結集！ テレビ埼玉 9月5日放映　　　　　　　　　　　　　　　
  2004
• 進化計算による車室内空調制御器のプログラム支援　　　　　　　　　　　　　　　
  2004
• 可搬型仮想共有環境におけるコンテンツ呈示方法と学習効果　　　　　　　　　　　　　　　
  2004
• 温熱的静環境下における温冷感や快適感に及ぼす時間的・心理的影響　　　　　　　　　　　　　　　
  2004
• Knowledge Transfer and Creation for High-Level Skills by Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  2004
• Structuring and Sharing of Mechanical Design Knowledge Using Semantic Web Technology　　　　　　　　　　　　　　　
  2004
• Development of the Framework for Internet-based Customer-oriented Ordering and Manufacturing System　　　　　　　　　　　　　　　
  2004
• Knowledge Creation and Transfer for Advanced Technical Skills Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  2004
• 車室内空調の快適性を考慮したコントローラ設計手法　　　　　　　　　　　　　　　
  2004
• 可搬型仮想共有環境システムによる鋳造製品設計支援　　　　　　　　　　　　　　　
  2004
• マルチメディアおよびバーチャルリアリティ技術を用いた設計・製造知識の獲得　　　　　　　　　　　　　　　
  2004
• 可搬型仮想共有環境システムの開発および鋳造方案支援への適用　　　　　　　　　　　　　　　
  日本設計工学会平成16年度春季研究発表講演会講演論文集, 2004
• 実システムへの実装を考慮した室内空調制御器の機能創発　　　　　　　　　　　　　　　
  日本設計工学会平成16年度秋季研究発表講演会講演論文集, 2004
• VR空間における鋳造技能獲得のための力覚呈示方法の検討　　　　　　　　　　　　　　　
  日本設計工学会平成16年度秋季研究発表講演会講演論文集, 2004
• 視覚情報によるロボットアーム制御に関する教育事例　　　　　　　　　　　　　　　
  日本設計工学会第2回教育研究事例発表会講演論文集, 2004
• バーチャルリアリティを用いたデザインレビューに関する教育事例　　　　　　　　　　　　　　　
  日本設計工学会第2回教育研究事例発表会講演論文集, 2004
• 可搬型仮想共有環境システムを用いた技術者教育支援　　　　　　　　　　　　　　　
  日本工学教育協会平成16年度工学・工業教育研究講演会講演論文集, 2004
• 可搬型仮想共有環境システムによる鋳造方案設計支援　　　　　　　　　　　　　　　
  日本機械学会第4回機素潤滑設計部門講演会講演論文集, 2004
• 実システムでの実時間を考慮した室内空調制御器の進化的機能形成　　　　　　　　　　　　　　　
  日本機械学会第14回設計工学・システム部門講演会講演論文集, 2004
• ファジイ理論およびデータマイニングによるインターネット顧客志向受注システムのための仕様選択支援　　　　　　　　　　　　　　　
  日本機械学会第14回設計工学・システム部門講演会講演論文集, 2004
• オントロジーに基づく機械設計知識の構造化および共有化(eラーニングへの適用)　　　　　　　　　　　　　　　
  日本機械学会第14回設計工学・システム部門講演会講演論文集, 2004
• VR空間における可視化モデル呈示方法とその没入感・現実感への効果　　　　　　　　　　　　　　　
  日本機械学会第14回設計工学・システム部門講演会講演論文集, 2004
• 組立／分解性および締結性能を考慮したカンチレバーフック形スナップフィット形状の最適化　　　　　　　　　　　　　　　
  日本機械学会関東支部第10期総会講演会講演論文集, 2004
• 磁性流体を潤滑剤として用いたジャーナル軸受の動特性　　　　　　　　　　　　　　　
  日本機械学会関東支部第10期総会講演会講演論文集, 2004
• レンズモデルによる鋳造作業者の造型動作の評価　　　　　　　　　　　　　　　
  日本機械学会関東支部第10期総会講演会講演論文集, 2004
• セマンテッィクウェブによる機械設計知識の構造化および共有化　　　　　　　　　　　　　　　
  日本機械学会関東支部第10期総会講演会講演論文集, 2004
• インターネットベース顧客志向受注システムの構築（要求仕様と生産能力を考慮した製品実現性提示アルゴリズム）　　　　　　　　　　　　　　　
  日本機械学会関東支部第10期総会講演会講演論文集, 2004
• XMLベース遠隔計測システムにおけるデータベースの構築　　　　　　　　　　　　　　　
  日本機械学会関東支部第10期総会講演会講演論文集, 2004
• 没入型仮想共有環境を用いた鋳造方案支援システムのGUI構築　　　　　　　　　　　　　　　
  日本機械学会関東学生会第43回学生員卒業研究発表会講演前刷集, 2004
• 歩行負担を考慮した歩行補助杖の最適設計　　　　　　　　　　　　　　　
  日本機械学会関東学生会第43回学生員卒業研究発表会講演前刷集, 2004
• 磁性流体ジャーナル軸受の特性に及ぼす磁場分布の影響　　　　　　　　　　　　　　　
  日本機械学会2004年度年次大会講演論文集, 2004
• 可搬型仮想共有環境システムによる鋳造方案の知識獲得および内面化　　　　　　　　　　　　　　　
  日本機械学会2004年度年次大会講演論文集, 2004
• システム同定を用いた車室内空調の快適性を考慮した制御器設計支援　　　　　　　　　　　　　　　
  日本機械学会2004年度年次大会講演論文集, 2004
• 製造業における技術・技能の伝承および知識創出　　　　　　　　　　　　　　　
  日本機械学会2004年度年次大会講演資料集, 2004
• 没入型仮想共有環境による鋳造方案支援システムの構築　　　　　　　　　　　　　　　
  精密工学会2004年度春季大会学術講演会講演論文集(CD-ROM論文集), 2004
• 産・学・官 パワー結集！ テレビ埼玉 9月5日放映　　　　　　　　　　　　　　　
  職人の技をバーチャルリアリティ技術で伝承, 2004
• 進化計算による車室内空調制御器のプログラム支援　　　　　　　　　　　　　　　
  ヒューマンインタフェース学会研究報告集, 2004
• 可搬型仮想共有環境におけるコンテンツ呈示方法と学習効果　　　　　　　　　　　　　　　
  ヒューマンインタフェース学会ヒューマンインタフェースシンポジウム2004論文集, 2004
• 温熱的静環境下における温冷感や快適感に及ぼす時間的・心理的影響　　　　　　　　　　　　　　　
  ヒューマンインタフェース学会ヒューマンインタフェースシンポジウム2004論文集, 2004
• Knowledge Transfer and Creation for High-Level Skills by Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  Supercomputing Conference (SC2004), 2004
• Structuring and Sharing of Mechanical Design Knowledge Using Semantic Web Technology　　　　　　　　　　　　　　　
  Proceedings of the First Asia International Symposium on Mechatronics (AISM 2004), 2004
• Development of the Framework for Internet-based Customer-oriented Ordering and Manufacturing System　　　　　　　　　　　　　　　
  Proceedings of the First Asia International Symposium on Mechatronics (AISM 2004), 2004
• Knowledge Creation and Transfer for Advanced Technical Skills Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  Proceedings of the 2nd International Conference on Business and Technology Transfer (ICBTT 2004), 2004
• 車室内空調の快適性を考慮したコントローラ設計手法　　　　　　　　　　　　　　　
  Design Symposium 2004講演論文集, 2004
• 可搬型仮想共有環境システムによる鋳造製品設計支援　　　　　　　　　　　　　　　
  Design Symposium 2004講演論文集, 2004
• マルチメディアおよびバーチャルリアリティ技術を用いた設計・製造知識の獲得　　　　　　　　　　　　　　　
  ACP研究会第2回研究会講演資料, 2004
• 高付加価値製品設計・生産のための技能伝承および知識創出　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境を用いた技術者教育の試み　　　　　　　　　　　　　　　
  2003
• 組込みシステムに対応するマルチタスクプログラミング教材の提案　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境システムを用いた鋳造熟練技能の内面化　　　　　　　　　　　　　　　
  2003
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境による鋳造方案支援システムの構築　　　　　　　　　　　　　　　
  2003
• ペトリネットを用いたインターネット受注型顧客志向生産システムの解析　　　　　　　　　　　　　　　
  2003
• 強化学習を用いた昆虫規範型多足ロボットの歩容の最適化　　　　　　　　　　　　　　　
  2003
• サーブリック分析による鋳造作業者の作業分析　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境システムを用いた鋳造作業の内面化　　　　　　　　　　　　　　　
  2003
• 組込みOSを利用したキャリアロボットの製作　　　　　　　　　　　　　　　
  2003
• 情報共有を考慮したXMLべース遠隔計測システムの構築　　　　　　　　　　　　　　　
  2003
• 熟練技能伝承のための知識可視化システムの構築　　　　　　　　　　　　　　　
  2003
• ネットワーク型計測制御装置の自動車用空調実験システムへの応用　　　　　　　　　　　　　　　
  2003
• ニューラルネットを用いた自動車車室内の快適度予測　　　　　　　　　　　　　　　
  2003
• セマンティックウェブによる機械設計式データの共有化　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境システムによる設計・製造のための熟練技能伝承および知識創出　　　　　　　　　　　　　　　
  2003
• インターネット／マルチメディア技術を用いた鋳造技能伝承および知識創出　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境システムによる熟練技能伝承および知識創出　　　　　　　　　　　　　　　
  2003
• 没入型仮想共有環境システムを用いた熟練技能の内面化　　　　　　　　　　　　　　　
  2003
• 快適性を考慮した自動車用空調システムの制御プログラム自動生成　　　　　　　　　　　　　　　
  2003
• Knowledge Transfer and Creation for High-Level Skills by Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  2003
• A Quick Intelligent Control System for a Mobile Robot to Avoid Collision with Moving Obstacles　　　　　　　　　　　　　　　
  2003
• 技能伝承と知識創出　　　　　　　　　　　　　　　
  2003
• インターネット／マルチメディア技術を用いた設計知識伝承システムの構築　　　　　　　　　　　　　　　
  2003
• 高付加価値製品設計・生産のための技能伝承および知識創出　　　　　　　　　　　　　　　
  日本溶接協会平成14年度第2回システム化技術検討プロジェクト資料, 2003
• 没入型仮想共有環境を用いた技術者教育の試み　　　　　　　　　　　　　　　
  日本設計工学会第1回教育研究事例発表会研究発表講演論文集, 2003
• 組込みシステムに対応するマルチタスクプログラミング教材の提案　　　　　　　　　　　　　　　
  日本設計工学会第1回教育研究事例発表会研究発表講演論文集, 2003
• 没入型仮想共有環境システムを用いた鋳造熟練技能の内面化　　　　　　　　　　　　　　　
  日本設計工学会2003年度秋季研究発表講演会講演論文集, 2003
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  日本情報処理開発協会電子商取引推進センター 製品表現のための先進技術動向報告書, 2003
• 没入型仮想共有環境による鋳造方案支援システムの構築　　　　　　　　　　　　　　　
  日本機械学会第13回設計工学・システム部門講演会講演論文集, 2003
• ペトリネットを用いたインターネット受注型顧客志向生産システムの解析　　　　　　　　　　　　　　　
  日本機械学会第13回設計工学・システム部門講演会講演論文集, 2003
• 強化学習を用いた昆虫規範型多足ロボットの歩容の最適化　　　　　　　　　　　　　　　
  日本機械学会関東支部第9期総会講演会講演論文集, 2003
• サーブリック分析による鋳造作業者の作業分析　　　　　　　　　　　　　　　
  日本機械学会関東支部第9期総会講演会講演論文集, 2003
• 没入型仮想共有環境システムを用いた鋳造作業の内面化　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• 組込みOSを利用したキャリアロボットの製作　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• 情報共有を考慮したXMLべース遠隔計測システムの構築　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• 熟練技能伝承のための知識可視化システムの構築　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• ネットワーク型計測制御装置の自動車用空調実験システムへの応用　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• ニューラルネットを用いた自動車車室内の快適度予測　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• セマンティックウェブによる機械設計式データの共有化　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2003桐生講演論文集, 2003
• 没入型仮想共有環境システムによる設計・製造のための熟練技能伝承および知識創出　　　　　　　　　　　　　　　
  日本機械学会RC206研究会（次世代統合CAD/CAEシステムの開発とその適用）平成15年度第4回委員会資料, 2003
• インターネット／マルチメディア技術を用いた鋳造技能伝承および知識創出　　　　　　　　　　　　　　　
  日本機械学会2003年度年次大会講演論文集, 2003
• 没入型仮想共有環境システムによる熟練技能伝承および知識創出　　　　　　　　　　　　　　　
  精密工学会北陸信越支部支部総会・特別講演会講演資料, 2003
• 没入型仮想共有環境システムを用いた熟練技能の内面化　　　　　　　　　　　　　　　
  ヒューマンインタフェース学会ヒューマンインタフェースシンポジウム2003論文集, 2003
• 快適性を考慮した自動車用空調システムの制御プログラム自動生成　　　　　　　　　　　　　　　
  ヒューマンインタフェース学会ヒューマンインタフェースシンポジウム2003論文集, 2003
• Knowledge Transfer and Creation for High-Level Skills by Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  Supercomputing Conference (SC2003), 2003
• A Quick Intelligent Control System for a Mobile Robot to Avoid Collision with Moving Obstacles　　　　　　　　　　　　　　　
  Proceedings of IIP/ISPS Joint MIPE’03, 2003
• 技能伝承と知識創出　　　　　　　　　　　　　　　
  2003年度精密工学会春季大会講演論文集(CD-ROM論文集), 2003
• インターネット／マルチメディア技術を用いた設計知識伝承システムの構築　　　　　　　　　　　　　　　
  2003年度精密工学会春季大会講演論文集(CD-ROM論文集), 2003
• 同期マルチメディア統合言語を利用した単品鋳物製品設計支援システムの構築　　　　　　　　　　　　　　　
  2002
• 梁部に空かを有するスナップフィットの最適形状　　　　　　　　　　　　　　　
  2002
• 階層分析法を用いた最適設計支援システムの構築（グラフモデルを用いた構成の最適化）　　　　　　　　　　　　　　　
  2002
• インターネット／マルチメディア技術を用いた単品鋳物製品設計支援システムの構築　　　　　　　　　　　　　　　
  2002
• 階層分析法を用いた最適設計支援システムの構築　　　　　　　　　　　　　　　
  2002
• 移動障害物の運動状況を考慮した自律移動物体の衝突回避最小安全距離の解析　　　　　　　　　　　　　　　
  2002
• マルチメディア技術を用いた熟練技能伝承システムにおける暗黙知と形式知の連携　　　　　　　　　　　　　　　
  2002
• ロボットの移動障害物回避に関する誘導時間の短縮化　　　　　　　　　　　　　　　
  2002
• インターネット／マルチメディア技術を用いた機械設計知識伝承システムの構築　　　　　　　　　　　　　　　
  2002
• 環境に優しい製品設計　　　　　　　　　　　　　　　
  2002
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築－暗黙知の獲得および表現法－　　　　　　　　　　　　　　　
  2002
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  2002
• 同期マルチメディア統合言語を利用した単品鋳物製品設計支援システムの構築　　　　　　　　　　　　　　　
  日本設計工学会平成14年度春季研究発表会講演論文集, 2002
• 梁部に空かを有するスナップフィットの最適形状　　　　　　　　　　　　　　　
  日本機械学会第12回設計工学・システム部門講演会講演論文集, 2002
• 階層分析法を用いた最適設計支援システムの構築（グラフモデルを用いた構成の最適化）　　　　　　　　　　　　　　　
  日本機械学会第12回設計工学・システム部門講演会講演論文集, 2002
• インターネット／マルチメディア技術を用いた単品鋳物製品設計支援システムの構築　　　　　　　　　　　　　　　
  日本機械学会第12回設計工学・システム部門講演会講演論文集, 2002
• 階層分析法を用いた最適設計支援システムの構築　　　　　　　　　　　　　　　
  日本機械学会関東支部第8期総会講演会講演論文集, 2002
• 移動障害物の運動状況を考慮した自律移動物体の衝突回避最小安全距離の解析　　　　　　　　　　　　　　　
  日本機械学会関東支部第8期総会講演会講演論文集, 2002
• マルチメディア技術を用いた熟練技能伝承システムにおける暗黙知と形式知の連携　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2002宇都宮講演論文集, 2002
• ロボットの移動障害物回避に関する誘導時間の短縮化　　　　　　　　　　　　　　　
  日本機械学会2002年度年次大会講演論文集, 2002
• インターネット／マルチメディア技術を用いた機械設計知識伝承システムの構築　　　　　　　　　　　　　　　
  日本機械学会2002年度年次大会講演論文集, 2002
• 環境に優しい製品設計　　　　　　　　　　　　　　　
  埼玉県工業技術センター南部研究所客員研究員講演会, 2002
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築－暗黙知の獲得および表現法－　　　　　　　　　　　　　　　
  2002年度精密工学会春季大会講演論文集, 2002
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  2002年度精密工学会秋季大会講演論文集, 2002
• 組立／分解工程のモデル化および作業シミュレーション　　　　　　　　　　　　　　　
  2001
• XMLベース人間－機械協調制御システムの構築　　　　　　　　　　　　　　　
  2001
• 組立／分解性を考慮したカンチレバーフック型スナップフィットの最適形状　　　　　　　　　　　　　　　
  2001
• 色むら欠陥検出におけるウェーブレット係数操作の最適化　　　　　　　　　　　　　　　
  2001
• 車室内用快適度センサーモジュールの開発　　　　　　　　　　　　　　　
  2001
• 昆虫規範型多足ロボットの開発(昆虫の歩容解析に基づくロボットの制御)　　　　　　　　　　　　　　　
  2001
• 昆虫規範型多足ロボットの開発(昆虫の歩容解析)　　　　　　　　　　　　　　　
  2001
• マルチメディア技術を用いた単品鋳物製造のための熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  2001
• XMLベースによる分散ネットワーク型計測モジュールの開発　　　　　　　　　　　　　　　
  2001
• XMLによる3次元CADデータの共有化　　　　　　　　　　　　　　　
  2001
• SMIL/XMLによる熟練技能者の知識表現　　　　　　　　　　　　　　　
  2001
• 拡張ファジィ・ペトリネットによる機械の組立／分解作業のモデル化および解析　　　　　　　　　　　　　　　
  2001
• An XML-based Sensing and Control for Human-Machine Cooperative System　　　　　　　　　　　　　　　
  2001
• XMLベース計測データ収集システムの構築　　　　　　　　　　　　　　　
  2001
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  2001
• 組立／分解工程のモデル化および作業シミュレーション　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2001
• XMLベース人間－機械協調制御システムの構築　　　　　　　　　　　　　　　
  日本機械学会関東支部第7期総会講演会講演論文集, 2001
• 組立／分解性を考慮したカンチレバーフック型スナップフィットの最適形状　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• 色むら欠陥検出におけるウェーブレット係数操作の最適化　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• 車室内用快適度センサーモジュールの開発　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• 昆虫規範型多足ロボットの開発(昆虫の歩容解析に基づくロボットの制御)　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• 昆虫規範型多足ロボットの開発(昆虫の歩容解析)　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• マルチメディア技術を用いた単品鋳物製造のための熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• XMLベースによる分散ネットワーク型計測モジュールの開発　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• XMLによる3次元CADデータの共有化　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2001鳩山講演論文集, 2001
• SMIL/XMLによる熟練技能者の知識表現　　　　　　　　　　　　　　　
  日本機械学会2001年度年次大会講演論文集, 2001
• 拡張ファジィ・ペトリネットによる機械の組立／分解作業のモデル化および解析　　　　　　　　　　　　　　　
  第19回設計シンポジウム講演論文集, 2001
• An XML-based Sensing and Control for Human-Machine Cooperative System　　　　　　　　　　　　　　　
  Proceedings of the International Conference on Mechatronics and Information Technology, 2001
• XMLベース計測データ収集システムの構築　　　　　　　　　　　　　　　
  2001年度精密工学会春季大会講演論文集, 2001
• インターネット／マルチメディア技術を用いた熟練技能伝承システムの構築　　　　　　　　　　　　　　　
  2001年度精密工学会秋季大会講演論文集, 2001
• 連結車両のモデル化　　　　　　　　　　　　　　　
  2000
• 接着剤の紙表面への付着と強度　　　　　　　　　　　　　　　
  2000
• 紙製ハニカム構造の強度　　　　　　　　　　　　　　　
  2000
• Stress Analysis of Brittle Particles in Double Impact　　　　　　　　　　　　　　　
  2000
• Some Consideration on the Optimization Model of Charge Motion in Tumbling Ball Mill　　　　　　　　　　　　　　　
  2000
• 5層積層梁野振動に関する研究　　　　　　　　　　　　　　　
  2000
• 不規則移動物体の追跡を目的としたニュートラルネットワークの最適化　　　　　　　　　　　　　　　
  2000
• XML/Javaによる部品規格票とCAEとの統合　　　　　　　　　　　　　　　
  2000
• 部品の色むら検出へのWavelet解析の適用　　　　　　　　　　　　　　　
  2000
• 紙製自動車の製作　　　　　　　　　　　　　　　
  2000
• PMVによる車室内空調制御法　　　　　　　　　　　　　　　
  2000
• ペトリネットによるメカトロニクス機器の並列／協調動作のモデル化および制御　　　　　　　　　　　　　　　
  2000
• Webベース製品設計・生産システムの開発事例　　　　　　　　　　　　　　　
  2000
• Webベース製品設計・生産システムの構築　　　　　　　　　　　　　　　
  2000
• 快適性を考慮した自動車空調システムの設計支援　　　　　　　　　　　　　　　
  2000
• Temperature Control Method of a Car Air Conditioning System Considering Passenger’s Comfort　　　　　　　　　　　　　　　
  2000
• 弾・塑性域締結ねじ性能試験の性能向上 －第2報，Visual C++による計測制御プログラムの開発－　　　　　　　　　　　　　　　
  2000
• 連結車両のモデル化　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2000
• 接着剤の紙表面への付着と強度　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2000
• 紙製ハニカム構造の強度　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2000
• Stress Analysis of Brittle Particles in Double Impact　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2000
• Some Consideration on the Optimization Model of Charge Motion in Tumbling Ball Mill　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2000
• 5層積層梁野振動に関する研究　　　　　　　　　　　　　　　
  日本設計工学会平成12年度春季研究発表講演会講演論文集, 2000
• 不規則移動物体の追跡を目的としたニュートラルネットワークの最適化　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 2000
• XML/Javaによる部品規格票とCAEとの統合　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 2000
• 部品の色むら検出へのWavelet解析の適用　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2000桐生講演論文集, 2000
• 紙製自動車の製作　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2000桐生講演論文集, 2000
• PMVによる車室内空調制御法　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会2000桐生講演論文集, 2000
• ペトリネットによるメカトロニクス機器の並列／協調動作のモデル化および制御　　　　　　　　　　　　　　　
  日本機械学会2000年度年次大会講演論文集, 2000
• Webベース製品設計・生産システムの開発事例　　　　　　　　　　　　　　　
  日本ねじ研究協会誌, 2000
• Webベース製品設計・生産システムの構築　　　　　　　　　　　　　　　
  東京工業大学精密工学研究所第32回シンポジウム, 2000
• 快適性を考慮した自動車空調システムの設計支援　　　　　　　　　　　　　　　
  第18回設計シンポジウム講演論文集, 2000
• Temperature Control Method of a Car Air Conditioning System Considering Passenger’s Comfort　　　　　　　　　　　　　　　
  Proceedings of the ISCA International Conference on Computer Applications in Industry and Engineering, 2000
• 弾・塑性域締結ねじ性能試験の性能向上 －第2報，Visual C++による計測制御プログラムの開発－　　　　　　　　　　　　　　　
  2001年度精密工学会春季大会講演論文集, 2000
• 組立／分解性を考慮したスナップフィットの最適形状　　　　　　　　　　　　　　　
  1999
• 柔軟性を有する多リンクロボットアームの衝突時における振動解析　　　　　　　　　　　　　　　
  1999
• 紙製梁同士の接合部における補強材の強度　　　　　　　　　　　　　　　
  1999
• 紙製構造物の基礎的研究　　　　　　　　　　　　　　　
  1999
• 紙の衝撃強度に関する一考察　　　　　　　　　　　　　　　
  1999
• 円孔を有する無限体に生じる衝撃応力　　　　　　　　　　　　　　　
  1999
• ペトリネットによるメカトロニクス機器の制御系解析　　　　　　　　　　　　　　　
  1999
• Webベース設計・生産システムのインターフェース構築　　　　　　　　　　　　　　　
  1999
• Javaによるメカトロニクス機器の制御　　　　　　　　　　　　　　　
  1999
• 段差における車椅子の三次元運動解析　　　　　　　　　　　　　　　
  1999
• Modeling of Impact Dynamic of a Flexible Robot Manipulators　　　　　　　　　　　　　　　
  1999
• An Estimate of Temperature in a Passenger Compartment by Numerical Simulation Using the Linear Graph Theory　　　　　　　　　　　　　　　
  1999
• Evaluation Method for Assembly/Disassembly by Petri Nets　　　　　　　　　　　　　　　
  1999
• Fuzzy-Timing Petri Net Model of Temperature Control for Car Air Conditioning System　　　　　　　　　　　　　　　
  1999
• Dynamics of Flexible Arm with Impact　　　　　　　　　　　　　　　
  1999
• 組立／分解性を考慮したスナップフィットの最適形状　　　　　　　　　　　　　　　
  日本設計工学会1999年度年次大会講演論文集, 1999
• 柔軟性を有する多リンクロボットアームの衝突時における振動解析　　　　　　　　　　　　　　　
  日本設計工学会1999年度春季研究発表会講演会講演論文集, 1999
• 紙製梁同士の接合部における補強材の強度　　　　　　　　　　　　　　　
  日本設計工学会1999年度春季研究発表会講演会講演論文集, 1999
• 紙製構造物の基礎的研究　　　　　　　　　　　　　　　
  日本設計工学会1999年度春季研究発表会講演会講演論文集, 1999
• 紙の衝撃強度に関する一考察　　　　　　　　　　　　　　　
  日本設計工学会1999年度春季研究発表会講演会講演論文集, 1999
• 円孔を有する無限体に生じる衝撃応力　　　　　　　　　　　　　　　
  日本設計工学会1999年度春季研究発表会講演会講演論文集, 1999
• ペトリネットによるメカトロニクス機器の制御系解析　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’99宇都宮講演論文集, 1999
• Webベース設計・生産システムのインターフェース構築　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’99宇都宮講演論文集, 1999
• Javaによるメカトロニクス機器の制御　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’99宇都宮講演論文集, 1999
• 段差における車椅子の三次元運動解析　　　　　　　　　　　　　　　
  日本機械学会関東学生会第38回学生員卒業研究発表講演会講演会前刷集, 1999
• Modeling of Impact Dynamic of a Flexible Robot Manipulators　　　　　　　　　　　　　　　
  Proceedings of the First International Conference on the Integration of Dynamics, Monitoring and Control (DYMAC99), 1999
• An Estimate of Temperature in a Passenger Compartment by Numerical Simulation Using the Linear Graph Theory　　　　　　　　　　　　　　　
  Proceedings of SAE International Congress and Exposition, 1999
• Evaluation Method for Assembly/Disassembly by Petri Nets　　　　　　　　　　　　　　　
  Proceedings of Internationnal Conference on Engineering Design (ICED99), 1999
• Fuzzy-Timing Petri Net Model of Temperature Control for Car Air Conditioning System　　　　　　　　　　　　　　　
  Proceedings of IEEE Internationnal Conference on Systems, Man, and Cybernetics (IEEE SMC'99), 1999
• Dynamics of Flexible Arm with Impact　　　　　　　　　　　　　　　
  Proceedings of Asia-Pacific Vibration Conference, 1999
• コンピュータを利用した生産工程の自動化に関する研究－ラーメン麺体の厚み測定による生産効率に関する研究－　　　　　　　　　　　　　　　
  1998
• コンピュータを利用した生産工程の自動化に関する研究－TCP/IPを利用した産業コンピュータネットワークについて－　　　　　　　　　　　　　　　
  1998
• 中小企業向け生産管理システムの構築　　　　　　　　　　　　　　　
  1998
• 柔軟を持つロボットアームの衝突振動解析　　　　　　　　　　　　　　　
  1998
• ペトリネットによるジョブショップ型生産システムの表現および解析　　　　　　　　　　　　　　　
  1998
• ペトリネットを用いた組立／分解性評価法　　　　　　　　　　　　　　　
  1998
• ファジイ・ペトリネットによる機械の分解作業の表現および解析　　　　　　　　　　　　　　　
  1998
• 不整地移動ロボットの三次元運動解析　　　　　　　　　　　　　　　
  1998
• 車室内の独立温度制御法　　　　　　　　　　　　　　　
  1998
• 快適性を考慮した室内空調制御法　　　　　　　　　　　　　　　
  1998
• カオス理論を用いた不規則移動物体の追跡法　　　　　　　　　　　　　　　
  1998
• アソシアトロンを用いた超音波センサの対象物認識　　　　　　　　　　　　　　　
  1998
• 不整地移動ロボットの駆動制御に関する研究　　　　　　　　　　　　　　　
  1998
• 自律型二輪車の駆動に関する研究　　　　　　　　　　　　　　　
  1998
• Modeling and Planning of Assembling/Disassembling Machine System by Fuzzy-Timing Petri Nets　　　　　　　　　　　　　　　
  1998
• コンピュータを利用した生産工程の自動化に関する研究－ラーメン麺体の厚み測定による生産効率に関する研究－　　　　　　　　　　　　　　　
  平成9年度埼玉県中小企業研究者養成研修事業成果発表会テキスト, 1998
• コンピュータを利用した生産工程の自動化に関する研究－TCP/IPを利用した産業コンピュータネットワークについて－　　　　　　　　　　　　　　　
  平成9年度埼玉県中小企業研究者養成研修事業成果発表会テキスト, 1998
• 中小企業向け生産管理システムの構築　　　　　　　　　　　　　　　
  日本設計工学会平成10年度春季研究発表会講演論文集, 1998
• 柔軟を持つロボットアームの衝突振動解析　　　　　　　　　　　　　　　
  日本設計工学会平成10年度春季研究発表会講演論文集, 1998
• ペトリネットによるジョブショップ型生産システムの表現および解析　　　　　　　　　　　　　　　
  日本設計工学会平成10年度春季研究発表会講演論文集, 1998
• ペトリネットを用いた組立／分解性評価法　　　　　　　　　　　　　　　
  日本機械学会第76期全国大会講演論文集, 1998
• ファジイ・ペトリネットによる機械の分解作業の表現および解析　　　　　　　　　　　　　　　
  日本機械学会第75期通常総会講演会講演論文集, 1998
• 不整地移動ロボットの三次元運動解析　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’98浦和講演論文集, 1998
• 車室内の独立温度制御法　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’98浦和講演論文集, 1998
• 快適性を考慮した室内空調制御法　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’98浦和講演論文集, 1998
• カオス理論を用いた不規則移動物体の追跡法　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’98浦和講演論文集, 1998
• アソシアトロンを用いた超音波センサの対象物認識　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’98浦和講演論文集, 1998
• 不整地移動ロボットの駆動制御に関する研究　　　　　　　　　　　　　　　
  日本機械学会関東学生会第37回学生員卒業研究発表講演会講演会前刷集, 1998
• 自律型二輪車の駆動に関する研究　　　　　　　　　　　　　　　
  日本機械学会関東学生会第37回学生員卒業研究発表講演会講演会前刷集, 1998
• Modeling and Planning of Assembling/Disassembling Machine System by Fuzzy-Timing Petri Nets　　　　　　　　　　　　　　　
  Proceedings of the ISCA 7th International Confernce on Intelligence Systems, 1998
• 紙の折り曲げ　　　　　　　　　　　　　　　
  1997
• 丸めた紙群による物体の支持　　　　　　　　　　　　　　　
  1997
• 遺伝的アルゴリズムによるCAD図面の認識および部品の抽出　　　　　　　　　　　　　　　
  1997
• ペトリネットによる機械の設計・生産スケジューリング　　　　　　　　　　　　　　　
  1997
• 高レベル・ファジイ・ペトリネットによる機械システムの組立作業時間の解析　　　　　　　　　　　　　　　
  1997
• だ円歯車形状材の応力分布　　　　　　　　　　　　　　　
  1997
• ファジイ・ペトリネットによる機械部品の組立作業時間の解析　　　　　　　　　　　　　　　
  1997
• 自律型二輪車の不倒制御　　　　　　　　　　　　　　　
  1997
• 埼玉大学機械工学科における創造的設計　　　　　　　　　　　　　　　
  1997
• バリなし鋳物製造に関する研究（鋳型合わせ面による影響）　　　　　　　　　　　　　　　
  1997
• ファジイ・ペトリネットによる部品組立組立／分解作業の表現および解析　　　　　　　　　　　　　　　
  1997
• A Evaluation Method Concerning the Complexity of Parts Processing Using the Algebraic Graph Theory　　　　　　　　　　　　　　　
  1997
• Performance Analysis of Assembling Gear Transmission Mechanism by Fuzzy-Timing Petri Net　　　　　　　　　　　　　　　
  1997
• Performance Analysis of Assembling Mobile Robot by High-Level Fuzzy-Timing Petri Nets　　　　　　　　　　　　　　　
  1997
• Dynamic Behavior of Robotics Manipulator During Impacting with A Work-piece　　　　　　　　　　　　　　　
  1997
• 紙の折り曲げ　　　　　　　　　　　　　　　
  日本設計工学会平成9年度春季研究発表会講演論文集, 1997
• 丸めた紙群による物体の支持　　　　　　　　　　　　　　　
  日本設計工学会平成9年度春季研究発表会講演論文集, 1997
• 遺伝的アルゴリズムによるCAD図面の認識および部品の抽出　　　　　　　　　　　　　　　
  日本設計工学会平成9年度秋季研究発表会講演論文集, 1997
• ペトリネットによる機械の設計・生産スケジューリング　　　　　　　　　　　　　　　
  日本設計工学会平成9年度秋季研究発表会講演論文集, 1997
• 高レベル・ファジイ・ペトリネットによる機械システムの組立作業時間の解析　　　　　　　　　　　　　　　
  日本計算工学会計算工学講演会論文集, 1997
• だ円歯車形状材の応力分布　　　　　　　　　　　　　　　
  日本機械学会論文集(A編), 1997
• ファジイ・ペトリネットによる機械部品の組立作業時間の解析　　　　　　　　　　　　　　　
  日本機械学会第74期通常総会講演会講演論文集, 1997
• 自律型二輪車の不倒制御　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’97桐生講演論文集, 1997
• 埼玉大学機械工学科における創造的設計　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’97桐生講演論文集, 1997
• バリなし鋳物製造に関する研究（鋳型合わせ面による影響）　　　　　　　　　　　　　　　
  日本機械学会関東支部ブロック合同講演会’97桐生講演論文集, 1997
• ファジイ・ペトリネットによる部品組立組立／分解作業の表現および解析　　　　　　　　　　　　　　　
  第15回設計シンポジウム講演論文集, 1997
• A Evaluation Method Concerning the Complexity of Parts Processing Using the Algebraic Graph Theory　　　　　　　　　　　　　　　
  Proceedings of the ISCA 12th International Conference on Computers and Their Applications, 1997
• Performance Analysis of Assembling Gear Transmission Mechanism by Fuzzy-Timing Petri Net　　　　　　　　　　　　　　　
  Proceedings of the ISCA 10th International Conference on Computer Application in Industry, 1997
• Performance Analysis of Assembling Mobile Robot by High-Level Fuzzy-Timing Petri Nets　　　　　　　　　　　　　　　
  Proceedings of the 2nd International Workshop on Advanced Mechatronics, 1997
• Dynamic Behavior of Robotics Manipulator During Impacting with A Work-piece　　　　　　　　　　　　　　　
  Proceedings of A-PVC ’97, 1997
• 製造業におけるマルチメディアの役割　　　　　　　　　　　　　　　
  1996
• 紙製自転車の製作　　　　　　　　　　　　　　　
  1996
• ロープ駆動機構の運動解析　　　　　　　　　　　　　　　
  1996
• ニュートラルネットワークを用いた表面欠陥　　　　　　　　　　　　　　　
  1996
• 歯付きベルトの振動特性に関する研究（移動負荷を受ける場合）　　　　　　　　　　　　　　　
  1996
• 筋電を利用したアクチュエータの駆動　　　　　　　　　　　　　　　
  1996
• グラフ理論による車室内空調のための温度推定　　　　　　　　　　　　　　　
  1996
• 製造業におけるマルチメディアの役割　　　　　　　　　　　　　　　
  平成7年度埼玉県マルチメディア研究報告書, 1996
• 紙製自転車の製作　　　　　　　　　　　　　　　
  日本設計工学会講演論文集, 1996
• ロープ駆動機構の運動解析　　　　　　　　　　　　　　　
  日本設計工学会講演論文集, 1996
• ニュートラルネットワークを用いた表面欠陥　　　　　　　　　　　　　　　
  日本設計工学会講演論文集, 1996
• 歯付きベルトの振動特性に関する研究（移動負荷を受ける場合）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1996
• 筋電を利用したアクチュエータの駆動　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1996
• グラフ理論による車室内空調のための温度推定　　　　　　　　　　　　　　　
  自動車技術会1996年度秋季大会学術講演会前刷集, 1996
• 跳躍移動体の駆動制御　　　　　　　　　　　　　　　
  1995
• 歯付きベルトの非線形振動特性に関する研究（第3報，幅広の歯付きベルトの場合）　　　　　　　　　　　　　　　
  1995
• グラフ理論による熱流体系の解析　　　　　　　　　　　　　　　
  1995
• 部品の加工難易度の評価に関する研究　　　　　　　　　　　　　　　
  1995
• 遺伝的アルゴリズムを用いた機械図面の認識に関する研究　　　　　　　　　　　　　　　
  1995
• グラフ理論による熱流体解析　　　　　　　　　　　　　　　
  1995
• 磁性体を用いた非磁性体の形状検出に関する基礎的研究　　　　　　　　　　　　　　　
  1995
• 画像処理による布地表面の方向性推定法　　　　　　　　　　　　　　　
  1995
• ペトリネットを用いたガタを有するリンク機構の解析　　　　　　　　　　　　　　　
  1995
• 歯付きベルトの非線形振動特性に関する研究（移動荷重を受ける場合）　　　　　　　　　　　　　　　
  1995
• Analysis of Nonlinear Vibration of Wide Timing Belt　　　　　　　　　　　　　　　
  1995
• Analysis of Nonlinear Vibration of Timing Belt (Under Meshing Impact and Varying Tension by Eccentric Pulley)　　　　　　　　　　　　　　　
  1995
• Integration of CAD and CAM System Using Macrofunction　　　　　　　　　　　　　　　
  1995
• 跳躍移動体の駆動制御　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1995
• 歯付きベルトの非線形振動特性に関する研究（第3報，幅広の歯付きベルトの場合）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1995
• グラフ理論による熱流体系の解析　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1995
• 部品の加工難易度の評価に関する研究　　　　　　　　　　　　　　　
  日本機械学会第73期全国大会講演会講演論文集, 1995
• 遺伝的アルゴリズムを用いた機械図面の認識に関する研究　　　　　　　　　　　　　　　
  日本機械学会第73期全国大会講演会講演論文集, 1995
• グラフ理論による熱流体解析　　　　　　　　　　　　　　　
  日本機械学会第72期通常総会講演会講演論文集, 1995
• 磁性体を用いた非磁性体の形状検出に関する基礎的研究　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1995
• 画像処理による布地表面の方向性推定法　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1995
• ペトリネットを用いたガタを有するリンク機構の解析　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1995
• 歯付きベルトの非線形振動特性に関する研究（移動荷重を受ける場合）　　　　　　　　　　　　　　　
  日本機械学会VS Tech’95 振動・音響新新技術シンポジウム講演論文集, 1995
• Analysis of Nonlinear Vibration of Wide Timing Belt　　　　　　　　　　　　　　　
  Proceedings of the International Conference on Structural Dynamics, Vibration, Noise and Control, 1995
• Analysis of Nonlinear Vibration of Timing Belt (Under Meshing Impact and Varying Tension by Eccentric Pulley)　　　　　　　　　　　　　　　
  Proceedings of ASME PVP, Current Topic in Computational Mechanics, 1995
• Integration of CAD and CAM System Using Macrofunction　　　　　　　　　　　　　　　
  JSME International Journal, Series C, 1995
• 歯付きベルトの非線形振動特性に関する研究（第2報，かみあい衝撃とプーリの偏心により張力変化を受ける場合）　　　　　　　　　　　　　　　
  1994
• CAMシステムにおけるマクロ情報の生成　　　　　　　　　　　　　　　
  1994
• 寸法公差を考慮したNC加工の自動化　　　　　　　　　　　　　　　
  1994
• グラフ理論による骨組み構造物の自動解析に関する研究　　　　　　　　　　　　　　　
  1994
• キャンパー角可変サスペンションの基礎的研究　　　　　　　　　　　　　　　
  1994
• 歯付きベルトの非線形振動特性に関する研究（第2報，かみあい衝撃とプーリの偏心により張力変化を受ける場合）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1994
• CAMシステムにおけるマクロ情報の生成　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1994
• 寸法公差を考慮したNC加工の自動化　　　　　　　　　　　　　　　
  日本機械学会第71期通常総会講演会講演論文集, 1994
• グラフ理論による骨組み構造物の自動解析に関する研究　　　　　　　　　　　　　　　
  日本機械学会関東学生会第33回学生員卒業研究発表講演会講演前刷集, 1994
• キャンパー角可変サスペンションの基礎的研究　　　　　　　　　　　　　　　
  日本機械学会関東学生会第33回学生員卒業研究発表講演会講演前刷集, 1994
• 銅イオン交換結晶質チタン酸繊維を基剤とした摩擦材の摩擦特性　　　　　　　　　　　　　　　
  1993
• 対象モデルを適用した知識ベースのデータ構造　　　　　　　　　　　　　　　
  1993
• 対象モデルを適用したウィンドウ環境の構築　　　　　　　　　　　　　　　
  1993
• 歯付きベルトの非線形振動特性に関する研究（第1報，歯付きベルトの共振領域）　　　　　　　　　　　　　　　
  1993
• マクロ機能によるCADとCAMシステムの結合　　　　　　　　　　　　　　　
  1993
• グラフ理論による機械システムの運動方程式の自動生成（機械振動系への適用）　　　　　　　　　　　　　　　
  1993
• 熱流体系解析のグラフ理論の適用　　　　　　　　　　　　　　　
  1993
• グラフ理論による機械システムの運動方程式の自動生成（機械振動系への適用）　　　　　　　　　　　　　　　
  1993
• 超音波波形のファジィ処理による対象物認識　　　　　　　　　　　　　　　
  1993
• 線形代数的グラフ理論を用いた部品加工の複雑さのトポロジカル評価　　　　　　　　　　　　　　　
  1993
• グラフ理論によるダクト系の熱流体解析　　　　　　　　　　　　　　　
  1993
• オブジェクト指向による搬送車スケジューリングシステムの構築　　　　　　　　　　　　　　　
  1993
• グラフ理論による送りねじを用いた位置決め機構の解析法 (1)　　　　　　　　　　　　　　　
  1993
• Study on Friction Behavior of Preloaded Linear Rolling Guides　　　　　　　　　　　　　　　
  1993
• メカトロニクス教育とロボットコンテストへの参加　　　　　　　　　　　　　　　
  1993
• 銅イオン交換結晶質チタン酸繊維を基剤とした摩擦材の摩擦特性　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1993
• 対象モデルを適用した知識ベースのデータ構造　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1993
• 対象モデルを適用したウィンドウ環境の構築　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1993
• 歯付きベルトの非線形振動特性に関する研究（第1報，歯付きベルトの共振領域）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1993
• マクロ機能によるCADとCAMシステムの結合　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1993
• グラフ理論による機械システムの運動方程式の自動生成（機械振動系への適用）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1993
• 熱流体系解析のグラフ理論の適用　　　　　　　　　　　　　　　
  日本機械学会第70期通常総会講演会講演論文集, 1993
• グラフ理論による機械システムの運動方程式の自動生成（機械振動系への適用）　　　　　　　　　　　　　　　
  日本機械学会第70期通常総会講演会講演論文集, 1993
• 超音波波形のファジィ処理による対象物認識　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1993
• 線形代数的グラフ理論を用いた部品加工の複雑さのトポロジカル評価　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1993
• グラフ理論によるダクト系の熱流体解析　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1993
• オブジェクト指向による搬送車スケジューリングシステムの構築　　　　　　　　　　　　　　　
  日本機械学会山梨講演会講演論文集, 1993
• グラフ理論による送りねじを用いた位置決め機構の解析法 (1)　　　　　　　　　　　　　　　
  日本ねじ研究協会誌, 1993
• Study on Friction Behavior of Preloaded Linear Rolling Guides　　　　　　　　　　　　　　　
  Proceedings of the First China/Japan International Symposium on Machine Elements, 1993
• メカトロニクス教育とロボットコンテストへの参加　　　　　　　　　　　　　　　
  CACS FORUM, 1993
• 予圧を与えた転がり直動システムの摩擦力について　　　　　　　　　　　　　　　
  1992
• パソコン環境下でのAIツール構築について　　　　　　　　　　　　　　　
  1992
• CAMシステムにおけるマクロ機能の自動生成　　　　　　　　　　　　　　　
  1992
• 放物面体を支持する骨組構造物　　　　　　　　　　　　　　　
  1992
• 機械システムの動特性解析の自動化（運動伝達機構への適用）　　　　　　　　　　　　　　　
  1992
• グラフ理論による送りねじを用いた位置決め機構の動的挙動の解析（フィードバック制御系の過渡応答解析および位置整定時間の短縮）　　　　　　　　　　　　　　　
  1992
• 単球が平面上を転がる際の摩擦力の発生について　　　　　　　　　　　　　　　
  1992
• 予圧を与えた転がり直動システムの摩擦力について　　　　　　　　　　　　　　　
  日本設計工学会平成4年度春季研究発表講演会講演論文集, 1992
• パソコン環境下でのAIツール構築について　　　　　　　　　　　　　　　
  日本設計工学会平成4年度春季研究発表講演会講演論文集, 1992
• CAMシステムにおけるマクロ機能の自動生成　　　　　　　　　　　　　　　
  日本設計工学会平成4年度秋季研究発表講演会講演論文集, 1992
• 放物面体を支持する骨組構造物　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1992
• 機械システムの動特性解析の自動化（運動伝達機構への適用）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1992
• グラフ理論による送りねじを用いた位置決め機構の動的挙動の解析（フィードバック制御系の過渡応答解析および位置整定時間の短縮）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1992
• 単球が平面上を転がる際の摩擦力の発生について　　　　　　　　　　　　　　　
  精密工学会1992年度春季学術講演会講演論文集, 1992
• グラフ理論による送りねじを用いた位置決め機構の動的挙動の解析　　　　　　　　　　　　　　　
  1990
• グラフ理論による送りねじを用いた位置決め機構の動的挙動の解析（フィードバック制御系の過度応答解析および位置製定時間の短縮）　　　　　　　　　　　　　　　
  1990
• グラフ理論を用いた位置決め機構の設計法－ねじ送り機構の高速化－　　　　　　　　　　　　　　　
  1990
• グラフ理論による送りねじを用いた位置決め機構の動的挙動の解析　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1990
• グラフ理論による送りねじを用いた位置決め機構の動的挙動の解析（フィードバック制御系の過度応答解析および位置製定時間の短縮）　　　　　　　　　　　　　　　
  日本機械学会九州支部佐賀地方講演会講演論文集, 1990
• グラフ理論を用いた位置決め機構の設計法－ねじ送り機構の高速化－　　　　　　　　　　　　　　　
  精密工学会1990年度春季大会学術講演会講演論文集, 1990
• メカトロニクスにおける振動と制御Ⅰグラフ理論を利用した振動解析　　　　　　　　　　　　　　　
  1988
• メカトロニクスにおける振動と制御Ⅰグラフ理論を利用した振動解析　　　　　　　　　　　　　　　
  日本能率協会‘88新テクノロジーシンポジウム, 1988
• グラフ理論による機械システムの設計法　　　　　　　　　　　　　　　
  1987
• メカトロニクスにおける振動と制御Ⅰグラフ理論を利用した振動解析　　　　　　　　　　　　　　　
  1987
• 動力伝達軸系のCAEへのグラフ理論の適用　　　　　　　　　　　　　　　
  1987
• グラフ理論による動力伝達軸系の動的挙動の解析（モータの特性，支持台の剛性，歯車の剛性を考慮した場合）　　　　　　　　　　　　　　　
  1987
• グラフ理論による動力伝達軸系の動的挙動の解析（モータの特性，支持台の剛性，歯車の剛性を考慮した場合）　　　　　　　　　　　　　　　
  1987
• Analysis of Dynamic Behaviour for Power Transmission Mechanism Using Linear Graph Theory　　　　　　　　　　　　　　　
  1987
• グラフ理論による機械システムの設計法　　　　　　　　　　　　　　　
  日本舶用機関学会, 1987
• メカトロニクスにおける振動と制御Ⅰグラフ理論を利用した振動解析　　　　　　　　　　　　　　　
  日本能率協会‘87新テクノロジーシンポジウム, 1987
• 動力伝達軸系のCAEへのグラフ理論の適用　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1987
• グラフ理論による動力伝達軸系の動的挙動の解析（モータの特性，支持台の剛性，歯車の剛性を考慮した場合）　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1987
• グラフ理論による動力伝達軸系の動的挙動の解析（モータの特性，支持台の剛性，歯車の剛性を考慮した場合）　　　　　　　　　　　　　　　
  日本機械学会東海支部三重地方講演会講演概要集, 1987
• Analysis of Dynamic Behaviour for Power Transmission Mechanism Using Linear Graph Theory　　　　　　　　　　　　　　　
  Proceedings of SAE Passenger Car Meeting and Exposition, 1987
• 内歯形状材の応力分布および変形　　　　　　　　　　　　　　　
  1986
• 動力伝達軸系のCAEへのグラフ理論の適用　　　　　　　　　　　　　　　
  1986
• 内歯形状材の応力分布および変形　　　　　　　　　　　　　　　
  日本機械学会論文集(A編), 1986
• 動力伝達軸系のCAEへのグラフ理論の適用　　　　　　　　　　　　　　　
  日本機械学会関西支部第246回講演会講演概要集, 1986
• カムの応力分布および変形　　　　　　　　　　　　　　　
  1985
• 内歯形状材の応用分布および変形　　　　　　　　　　　　　　　
  1985
• カムの応力分布および変形　　　　　　　　　　　　　　　
  日本機械学会論文集(C編), 1985
• 内歯形状材の応用分布および変形　　　　　　　　　　　　　　　
  日本機械学会山梨地方講演会講演論文集, 1985
• カムの応力分布および変形　　　　　　　　　　　　　　　
  1984
• カムの応力分布および変形　　　　　　　　　　　　　　　
  日本機械学会北陸信越支部北陸地方講演会講演論文集, 1984

• Cultural differences in moral development and parent-child transference: A cognitive neuroscience approach　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2021 - 31 Mar. 2026
  Waseda University
  Grant amount(Total)：17290000, Direct funding：13300000, Indirect funding：3990000
  Grant number：21H00939
• Dialogue environment generation and control system based on embodied entrainment　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2020 - 31 Mar. 2024
  Okayama Prefectural University
  Grant amount(Total)：17420000, Direct funding：13400000, Indirect funding：4020000
  Grant number：20H04232
• 児童に寄り添った「表現の見取り」を可能とする教員支援システムの創出とその効果検証　　　　　　　　　　　　　　　
  01 Apr. 2019 - 31 Mar. 2023
  Grant amount(Total)：16900000, Direct funding：13000000, Indirect funding：3900000
  Grant number：19H01664
• Development of a Model for Kansei Value Recognition and Mapping of Biological Information by a Knowledge Engineering Approach　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 01 Apr. 2016 - 31 Mar. 2020
  MURAMATSU Keiichi, Saitama University
  Grant amount(Total)：4550000, Direct funding：3500000, Indirect funding：1050000
  By systematizing the knowledge on the Kansei evaluation based on biological information, we aimed to understand the structure of the mind called Kansei value recognition in a unified way. In this study, we analyzed the relationship between the senses by organizing the words used in the sensory evaluation. Then, we conducted experiments on Kansei evaluation to obtain basic knowledge about subjective evaluation of visual, auditory and olfactory stimuli and their corresponding biological information. On the basis of these results, we tried to develop a new method for the expression of biological data corresponding to the cognitive and psychological states of the participants in the experiment. We then constructed an ontology defining the user's state of mind, including emotions and sensations. This provides a basis for expressing the user's emotions and sensations related to Kansei evaluation.
  Grant number：16K00367
• Virtual Reality-Based Skills Training and Real Skills Training Based on Brain Activity Assessment Using Near-Infrared Spectroscopy　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2010 - 2012
  WATANUKI Keiichi, Saitama University
  Grant amount(Total)：4420000, Direct funding：3400000, Indirect funding：1020000
  This study proposes a new virtual reality-based skills training and human resource development. In our proposed system, the education content is displayed in the immersive virtual environment with haptic information, whereby a trainee may experience work in the virtual site operation. The brain functional activities of the worker under virtual and real skills training are measured using near-infrared spectroscopy, and the characteristics of these activities are analyzed in detail.
  Grant number：22560241
• Study of human support system based on sociological analysis of interactions in human care　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), 2007 - 2009
  YAMAZAKI Keiichi; KUNO Yoshinori; KUZUOKA Hidiaki; YAMADA Youko; IGARASHI Motoko; KOBAYASHI Ako; YAMAZAKI Akiko; IDA Yasuko; ITOU Hiroaki; WATANUKI Keiichi; YUKIOKA Tetsuo; MATTHEW Burdelski, Saitama University
  Grant amount(Total)：29380000, Direct funding：22600000, Indirect funding：6780000
  This study aims to develop various human support systems for human care facilities such as senior homes, nursery schools, and appreciation support areas in museums through utilizing video data recorded at such facilities and analyzed through the methods of ethnomethodology, an approach derived from sociology. The results enabled us to develop a wheelchair robot based on research conducted at a senior home, and a museum guide robot based on research conducted at an appreciation support area in a museum.
  Grant number：19203025
• Development of Knowledge Acquisition and Skill Transfer System Using Immersive Virtual Environment　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2007 - 2008
  WATANUKI Keiichi, Saitama University
  Grant amount(Total)：4420000, Direct funding：3400000, Indirect funding：1020000
  Grant number：19560251
• Development of Haptic Device for Advanced Technical Skills in the Immersive Virtual Environment　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2004 - 2005
  WATANUKI Keiichi, Saitama University
  Grant amount(Total)：3100000, Direct funding：3100000
  The environment in which Japanese industry has achieved great respect is changing tremendously due to the globalization of economics, where Asian countries are undergoing economic and technical development as well as benefiting from the advances in information technology. For example, in the design of custom-made casting product, a designer whom lacking of casting knowledge may not be able to produce a good design. In order to obtain a good design and manufacturing result, it is necessary to equip the designer and manufacturer with a support system related to casting design or so called, knowledge transfer and creation system. This paper proposes a new virtual reality based knowledge acquisition and job training system for casting design, which is composed of the explicit and tacit knowledge transfer system using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersive virtual environment, where by a trainee may experience himself in the virtual site operations. Provided that the trainee has gained explicit and tacit knowledge of casting through the multimedia-based knowledge transfer system, the immersive virtual environment catalyzes the internalization of knowledge and also enable the trainee to gain tacit knowledge before undergoing on the job training at real operation site. The advantage of our system is that it provides the user an opportunity to visually and haptically experience the foundry workflow in a virtually-real manner. By combining the usages of our system and OJT, training program is expected to become a highly efficient and effective futuristic means of human resources development of engineers and technicians. When using the "Portable immersive Virtual Environment System", the user enters a "3D Visualized System". By wearing 3D stereoscopic glasses (eye-gear) the user can see a stereoscopic 3D image of the workflow, in which even the shape and form of a product can be experienced and "felt" by using the haptic system as shown in Fig.10. Simply put, this robot can be used as a system to support the internalization process of learning which is the Phase 4 of the knowledge conversion process defined by the SECI Model. There are many advantages in using this system for in-house education and training purpose. Notable advantages are : (1)The worker can virtually experience the foundry workflow prior to actually performing the works at the worksite in the foundry factory. (2)Learn about the work procedures beforehand. (3)Fully learn about the risks and danger throughout the work process. (4)Train beginner/intermediate level workers that haven't reached veteran level yet, so they can smoothly perform their tasks at the worksite.
  Grant number：16560112
• -　　　　　　　　　　　　　　　
  Competitive research funding
• -　　　　　　　　　　　　　　　
  Competitive research funding