1 0 0 0 OA 神経系活動に基づくフライス加工技能レベルの新しい定量的評価法
- 著者
- 不破 輝彦 本田 寛享 大友 勇人 二宮 敬一 池田 知純 貴志 浩久
- 出版者
- Polytechnic University of Japan 職業能力開発総合大学校
- 雑誌
- 技能科学研究 (ISSN:24343706)
- 巻号頁・発行日
- vol.38, no.4, pp.11-15, 2022 (Released:2022-07-11)
- 参考文献数
- 6
The purpose of this study was to evaluate the workers' skill levels quantitatively by biological measurement during performance of milling work. We evaluated the relationship between the workers' skill levels, the difficulty levels of the tasks, and the workers' nervous system activities, i.e., changes in oxyhemoglobin and deoxyhemoglobin in prefrontal cortex as central nervous system activities and LF/HF as autonomic nervous system activities. Subjects were divided into two groups, i.e., an expert group and an intermediate subject group. As a result, it was shown that there is a certain relationship between workers' skill levels, the difficulty level of the tasks and nervous system activities. In conclusion, there is a possibility that changes in nervous system activities can evaluate the workers' milling skill level quantitatively.
1 0 0 0 OA NPPV 鼻マスクのフィッティングにおける力学的検討
- 著者
- 尾田 雅文 二宮 敬一 原 利昭
- 出版者
- ライフサポート学会
- 雑誌
- ライフサポート (ISSN:13419455)
- 巻号頁・発行日
- vol.25, no.4, pp.124-129, 2013-12-30 (Released:2015-02-09)
- 参考文献数
- 10
- 被引用文献数
- 1 2
The number of patients with chronic respiratory deficiency, such as Chronic Obstructive Pulmonary Disease or Sleep Apnea syndrome, is increasing. For patients with comparatively serious symptoms, the Non-invasive Positive Pressure Ventilation (NPPV) may be prescribed. However, pressure necrosis or anaclisis could affect treatment by occurring at the contact area of nasal mask. In response to this problem, the construction of a simulation environment can be applied. This personal simulation model was created based on these measurement results and the interpolation results using the Free-form-deformation technique. A fundamental numerical analysis was performed, and Von Mises stress distribution was shown when the NPPV nasal mask made contact with the face. It is shown that the maximum stress can be decreased by 19.4% compared with the cases of standard mask. In conclusion, by using this system, the shape of a nasal mask suitable for each patient can be determined.