著者

清水 哲雄 小松 治男 馬田 俊雄 高橋 清 佐藤 正矩

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 C編 (ISSN:03875024)

巻号頁・発行日

vol.64, no.623, pp.2348-2353, 1998-07-25 (Released:2008-02-26)

参考文献数

3

被引用文献数

1

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Understanding the spinning mechanism of an impacted golfball is an important factor in golf science and engineering. The rigid sphere model which considers the Coulomb-type slip friction presented independently by Daish and Kawamura (referred to here as the Daish-Kawamura model) seems to well explain the experimental results of golfball spinning. For a more general interpretation of the spin phenomenon, we attempted to modify this model by introducing a physical quantity called the "s parameter", which is defined as the ratio of the circumferential velocity of the ball to its centroid velocity. An experiment performed to verify the appropriateness of the new parameter introduction led to the following conclusions: The spin phenomenon in golf impact can be divided into two phases, in both of which the Daish-Kawamura model is effective. A method is described to evaluate the coefficient of slip friction under high sliding velocities, and the value is estimated as 0.07 for a slippery surface condition.

著者

吉田 亜由美 松本 博之 飯田 康人 高橋 啓 藤田 結花 辻 忠克 藤兼 俊明 清水 哲雄 小笠原 英紀 斉藤 義徳

出版者

THE JAPANESE SOCIETY FOR TB AND NTM

雑誌

結核 (ISSN:00229776)

巻号頁・発行日

vol.71, no.6, pp.415-421, 1996-06-15 (Released:2011-05-24)

参考文献数

10

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The patient was 69-year-old male. He had a history of treatment for tuberculosis by artificial pneumothorax about 47 years ago. He was admitted an another hospital under the diagnosis of tuberculous pyothorax. He was transferred to our hospital because of chest pain and fever. Laboratory findings on the admission were as follows: ESR was 120 mm/hr, CRP was 20.22mg/dl and other data were almost within normal limits. Chest X-ray showed a massive shadow in the right lower lung field, adjacent to the chest wall. Computed tomography (CT) showed tumor shadow with low density and invasions into the adjacent chest wall. Histological examination of surgically excised tumor biopsy revealed malignant lymphoma. The patient's condition improved and the size of tumor decreased temporarily by chemotherapy. Then, he began to complain of chest pain and high fever, and tumor in the chest wall invaded into the whole chest wall. He died of disseminated. intravascular coagulation despite continuing chemotherapy. Postmortem examination re vealed the following findings: the tumor existed mainly in the parietal pleura or the chest wall, adjacent to the lesion of pyothorax, and immunohistochemical examination showed that tumor was malignant lymphoma, diffuse, large B-cell type. Recent studies have shown a close association between EBV infection and pyothorax-associated lymphoma. We have to keep in mind the possible development of malignant lymphoma following tuberculous pyothorax, when we see patients complaining of fever or chest pain with tuberculous pyothorax.

著者

清水 哲雄

出版者

滋賀大学経済学会

雑誌

彦根論叢 (ISSN:03875989)

巻号頁・発行日

no.189, pp.p19-37, 1978-03

著者

清水 哲雄

出版者

滋賀大学

雑誌

彦根論叢 (ISSN:03875989)

巻号頁・発行日

vol.285, 1993-11-30

著者

藤兼 俊明 藤田 結花 辻 忠克 松本 博之 佐々木 信博 清水 哲雄 坂井 英一

出版者

日本肺癌学会

雑誌

肺癌 (ISSN:03869628)

巻号頁・発行日

vol.36, no.6, pp.765-774, 1996-10-20

参考文献数

21

被引用文献数

2

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女性肺癌の臨床像について, とくに喫煙歴に注目して男性と比較検討した.女性の喫煙率は男性の1/3以下, 平均喫煙指数も1/2以下であった.女性では男性と比較して腺癌, 無自覚症状者, 臨床病期I期, IV期, PS0, 4が有意に多く, 検診発見者が多い傾向にあった.しかし, 喫煙歴別では, 非喫煙女性で非喫煙男性に比較してPS0が有意に多かったほかに男女間に有意差はなかった.また, 喫煙女性は非喫煙女性と比較し自覚症状発見者, 有自覚症状者が有意に多く, IV期, PS4が多い傾向にあった.予後は, 全症例およびおもな予後因子で層別しても男女間に有意差はなかったが, 腺癌のIV期では女性の予後が有意に良好であった.女性肺癌の臨床像の特徴は男性と比較して喫煙歴が少ないことによる影響が大きいと考えられた.また, 喫煙歴の有無は男性と比較して女性でより大きく臨床像に影響を与えていた.