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RISS 인기검색어
- 검색키워드
- 저자 : Eiichi Kobayashi (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
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Development of Safety Index for Evaluation of Ship Navigation
Soo-Jin Hwang,Eiichi Kobayashi,Nobujazu Wakabayashi 한국항해항만학회 2014 한국항해항만학회지 Vol.38 No.3
As a sense of practical field, most researchers emphasize the importance of safety management to prevent marine accidents. The purpose of this paper is to develope a new safety evaluation method using Safety Index (SI) which is to measure the emotional feeling of navigation officer by traffic situations. In this study, the questionnaires with SI are used to investigate the degree of sensing levels of navigation officers according to the navigation situations. In addition, the traffic data obtained from AIS (Automatic Identification System) data are used to give actual situations in the questionnaire investigation. As results of questionaries investigations based upon the AIS data, it is shown that the Safety Index can be used as a criterion to determine the safety levels of ship navigating in a coastal areas.
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Atsushi KOBAYASHI,Toshiki HIROGAKI,Eiichi AOYAMA 제어로봇시스템학회 2020 제어로봇시스템학회 국제학술대회 논문집 Vol.2020 No.10
In recent years, electronic devices have become lighter, thinner, shorter, smaller, and more multifunctional, leading micro drilling technology to become more sophisticated. In order to meet these demands on electronics, this paper proposes a drilling machine tool with a counterbalance vibration control mechanism. A finite element analysis model of the machine tool is created and analysis results are compared with vibration measurement experiment results. Finally, the vibration characteristics of the resulting machine tool equipped with a vibration damping mechanism are examined. Model validity was confirmed by comparing analytic and experimental results. Results show that mounting this mechanism on a drilling machine tool reduces vibration, improves hole position accuracy, and reduces wear and chipping of the drill tip surface.
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Development of Safety Index for Evaluation of Ship Navigation
Soo-Jin Hwang,Eiichi Kobayashi,Nobujazu Wakabayashi 한국항해항만학회 2014 한국항해항만학회지 Vol.38 No.3
As a sense of practical field, most researchers emphasize the importance of safety management to prevent marine accidents. The purpose of this paper is to develope a new safety evaluation method using Safety Index (SI) which is to measure the emotional feeling of navigation officer by traffic situations. In this study, the questionnaires with SI are used to investigate the degree of sensing levels of navigation officers according to the navigation situations. In addition, the traffic data obtained from AIS (Automatic Identification System) data are used to give actual situations in the questionnaire investigation. As results of questionaries investigations based upon the AIS data, it is shown that the Safety Index can be used as a criterion to determine the safety levels of ship navigating in a coastal areas.
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Development of Safety Index for Evaluation of Ship Navigation
Hwang, Soo-Jin,Kobayashi, Eiichi,Wakabayashi, Nobujazu Korean Institute of Navigation and Port Research 2014 한국항해항만학회지 Vol.38 No.3
As a sense of practical field, most researchers emphasize the importance of safety management to prevent marine accidents. The purpose of this paper is to develope a new safety evaluation method using Safety Index (SI) which is to measure the emotional feeling of navigation officer by traffic situations. In this study, the questionnaires with SI are used to investigate the degree of sensing levels of navigation officers according to the navigation situations. In addition, the traffic data obtained from AIS (Automatic Identification System) data are used to give actual situations in the questionnaire investigation. As results of questionaries investigations based upon the AIS data, it is shown that the Safety Index can be used as a criterion to determine the safety levels of ship navigating in a coastal areas.
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The Influence of Tsunamis on Moored Ships and Ports
Masayoshi Kubo,Ik-Soon Cho,Shigeki Sakakibara,Eiichi Kobayashi,Syunichi Koshimura 한국항해항만학회 2005 한국항해항만학회지 Vol.29 No.4
Planning for the construction of ports and harbors usually takes place without the consideration of tsunamis because of their rare occurrence, approximately once every 100 years. However, recent warnings indicate that massive earthquakes could occur in Japan within the next 30 years. Earthquakes may generate large-scale tsunamis. Therefore, any tsunamis in the vicinity of Japan would also be expected to affect eastern Korea. Therefore, with the looming concerns of tsunamis and earthquakes, immediate attention must be given to the planning of ports and harbors. The warnings deserve an immediate response. The threatened regions cover a very large territory, and the degree of severity of the tsunamis is forecasted to be varied. Therefore, any modeling of the potential scenarios will require a broad array of possibilities. The objective of this paper is to consider the potential damage from tsunamis to ports and moored ships in Japan and Korea. In addition, consideration will be given to how the construction plans of ports and harbors should be changed to cope with the threats from earthquakes and tsunamis.
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The Influence of Tsunamis on Moored Ships and Ports
Kubo Masayoshi,Cho Ik-Soon,Sakakibara Shigeki,Kobayashi Eiichi,Koshimura Syunichi Korean Institute of Navigation and Port Research 2005 한국항해항만학회지 Vol.29 No.4
Planning for the construction of ports and harbors usually takes place without the consideration of tsunamis because of their rare occurrence, approximately once every 100 years. However, recent warnings indicate that massive earthquakes could occur in Japan within the next 30 years. Earthquakes may generate large-scale tsunamis. Therefore, any tsunamis in the vicinity of Japan would also be expected to affect eastern Korea. Therefore, with the looming concerns of tsunamis and earthquakes, immediate attention must be given to the planning of ports and harbors. The warnings deserve an immediate response. The threatened regions cover a very large territory, and the degree of severity of the tsunamis is forecasted to be varied. Therefore, any modeling of the potential scenarios will require a broad array of possibilities. The objective of this paper is to consider the potential damage from tsunamis to ports and moored ships in Japan and Korea. In addition, consideration will be given to how the construction plans of ports and harbors should be changed to cope with the threats from earthquakes and tsunamis.
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