Zobrazeno 1 - 10 of 227 pro vyhledávání: '"Kazuya SEO"'
1
Akademický článek
Measurement of aerodynamic force and moment acting on a javelin using a magnetic suspension and balance system
Autor: Kazuya Seo, Hiroyuki Okuizumi, Yasufumi Konishi, Takuto Kobayashi, Hiroaki Hasegawa, Shigeru Obayashi
Publikováno v: Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract The rules governing the dimensions of the Javelin were substantially changed in 1986. It was considered that this new design guaranteed there was zero pitching moment at 0° angle of attack and that the pitching moment decreased (became nega
Externí odkaz: https://doaj.org/article/aaa47e2c362b4a62bebdf9b766a61037
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2
Akademický článek
Range of motion patterning in trunk and upper and lower extremities of high school baseball pitchers
Autor: Machiko Hiramoto, Tomoyuki Matsui, Ruo Hashimoto, Yoshikazu Azuma, Kazuya Seo, Tetsuya Miyazaki, Yuya Watanabe, Noriyuki Kida, Toru Morihara
Publikováno v: Journal of Physical Fitness and Sports Medicine, Vol 12, Iss 1, Pp 17-25 (2023)
Evaluating range of motion (ROM) using several joints is essential for rehabilitating throwing injuries. We used multivariate analysis to elucidate the ROM patterns in baseball pitchers. This cross-sectional study measured the variable ROM in the upp
Externí odkaz: https://doaj.org/article/26a4f4f60ae847cfa64133c75f1ff603
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3
Akademický článek
Effect of surface design on drag properties of soccer balls
Autor: Kaito TADA, Masaki HIRATSUKA, Shinichiro ITO, Kazuya SEO
Publikováno v: Nihon Kikai Gakkai ronbunshu, Vol 89, Iss 924, Pp 23-00045-23-00045 (2023)
The paper describes the critical Reynolds number of soccer balls as a function of the total groove volume on the ball surface. In this study, the aerodynamic drag and separation point of 6 soccer balls with different panel orientations were measured
Externí odkaz: https://doaj.org/article/70060d9a152d48949d313b4776c11c4b
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4
Akademický článek
Preface
Autor: Motomu Nakashima, Kazuya Seo
Publikováno v: Journal of Biomechanical Science and Engineering, Vol 15, Iss 1, Pp 20preface1-20preface1 (2020)
Externí odkaz: https://doaj.org/article/818c2e6a592544e3ac4b7864a3f4e0eb
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5
Utility of a new lower limb and trunk functional evaluation for pitchers with focus on the physical characteristics of players with a throwing disorder
Autor: Tomoyuki Matsui, Yoshikazu Azuma, Machiko Hiramoto, Kazuya Seo, Tetsuya Miyazaki, Kanta Matsuzawa, Noriyuki Kida, Toru Morihara
ObjectivesA pitching motion involves three-dimensional whole body movement. Proper pelvic and trunk rotation movement are important for the prevention of throwing injuries. Given that throwing is not a simple rotation movement, the evaluation of prop
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::637632a4f5ef790635f60c50b5be2b89
https://doi.org/10.1101/2023.03.30.23287922
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10
Akademický článek
Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS
Autor: Takuto Kobayashi, Kazuya Seo, Shoya Kaneda, Kasumi Sasaki, Kento Shinji, Shogo Oyama, Hiroyuki Okuizumi, Yasufumi Konishi, Hiroaki Hasegawa, Shigeru Obayashi
Publikováno v: Proceedings, Vol 49, Iss 1, p 144 (2020)
Using the world’s largest magnetic suspension and balance system (MSBS) and a low-turbulence wind tunnel, we successfully measured the aerodynamic forces acting on a non-spinning women’s javelin. It was found that the drag and the lift increased
Externí odkaz: https://doaj.org/article/10a4bf19ef9a438ab39625d157568188
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