著者

齊藤 亜由子 行田 正三 安部 芳絵 雑賀 高

出版者

公益社団法人 日本工学教育協会

雑誌

工学教育 (ISSN:13412167)

巻号頁・発行日

vol.70, no.4, pp.4_2-4_7, 2022 (Released:2022-07-22)

参考文献数

19

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This paper describes the diversity promotion efforts which support students with disabilities and sexual minorities at technical universities. By reference to examples of reasonable accommodation, we have identified that adjusting the balance between reasonable accommodation for students and safety in the experiments and graduation researches might have been important especially at technical universities. The results of the questionnaire conducted for the students indicated that it is important to disseminate the efforts to promote diversity at the university for both the students who need reasonable accommodation and the students who do not need reasonable accommodation in order to enrich their university life. We concluded that it is necessary to provide students the opportunities in which they can accept diverse values and have their own ideas.

著者

齊藤 亜由子 木澤 悟 雑賀 高

出版者

公益社団法人 日本工学教育協会

雑誌

工学教育 (ISSN:13412167)

巻号頁・発行日

vol.69, no.4, pp.4_40-4_45, 2021 (Released:2021-08-01)

参考文献数

13

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In this paper, we focused on researchers in the engineering field and examined the relationship between career self-reliance and the experience of writing research papers. We conducted a questionnaire survey on the research paper writing experience and career self-reliance for researchers in the engineering field who had experience as professors in higher education institutions. As a result, we found that “A sense of achievement and growth experience gained by writing a research paper” affects both “Psychological aspects of career self-reliance” and “Behavioral aspects of career self-reliance”. Especially, the survey results demonstrated that “A sense of achievement and growth experience gained by writing a research paper” affects “Professional self-efficacy” and “Adaptation behavior to changes in the work environment”.

著者

齊藤 亜由子 宮脇 和人 小松 瞭 巖見 武裕

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 (ISSN:21879761)

巻号頁・発行日

vol.84, no.865, pp.18-00263, 2018 (Released:2018-09-25)

参考文献数

20

被引用文献数

1

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This paper describes the use of nine-axis motion sensors to evaluate the motion sensor position on the thigh and lower leg during walking. The motion sensors are mounted on a subject's body using adhesive tape. The muscles constantly relax or contract because of human movement. Therefore, joint angle estimation using motion sensors produces different accuracy depending on the position where the motion sensor is mounted. Evaluating the motion sensor position is important for improving the joint angle estimation accuracy. For this study, the authors used six nine-axis motion sensors and a 3D motion analysis system to assess walking exercise. Three motion sensors were mounted to the thigh; three were mounted to the lower leg. The knee joint angle was estimated using a sensor fusion algorithm that corrected the centrifugal acceleration and the tangential acceleration in the acceleration sensor output. We evaluated the accuracy of knee joint angle estimation by comparing the nine-axis motion sensor results and the 3D motion analysis system results. Results demonstrated the possibility of high-accuracy estimation when the motion sensor is attached to a position 50% or 75% from the upper end of the thigh and another sensor is attached to a position 25% or 50% from the upper end of the lower leg.

著者

齊藤 亜由子 宮脇 和人 木澤 悟

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 (ISSN:21879761)

巻号頁・発行日

vol.83, no.852, pp.17-00234-17-00234, 2017 (Released:2017-08-25)

参考文献数

16

被引用文献数

2

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This paper presents a proposed method for center of gravity (COG) velocity estimation during squatting using information obtained from lower limb motion measurements. A squat exercise uses the lower limb joints and the muscles around these joints. The squat exercise velocity changes according to the lower limb muscle activity. Some earlier reports of relevant studies have suggested that muscle weakness and neurological deterioration influence the COG velocity when standing up. Therefore, it is important to clarify the relation between the COG velocity and lower limb motion for efficient training and the prevention of falls among older people. For this study, we constructed a squat velocity model that represents the relation between the COG velocity and lower limb joint power during squatting. Although no joint power indicates each muscle activity in detail, it is possible to estimate muscle activities around the joints approximately by using the joint power. For this experiment, the squat exercise was measured using a 3D motion analysis system. The experiment was conducted for three stance widths. The COG velocity and the lower limb joint powers were calculated using information from the 3D motion analysis system. We estimated the squat velocity model parameters by application of Kalman filter using the measurement information. The analysis results for the squat velocity model indicated a quantitative relation between the COG velocity and the lower limb joint power during squatting. Furthermore, comparable results were obtained from three stance widths. This analytical method is anticipated for use in evaluation of motor function and exercise assisting device design.