Osaka Sangyo University Repository / 大阪産業大学リポジトリ
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A Study on Survey and Analysis sheets of Internal Control in Health Care Organization
Get PDFdepartmental bulletin pape
Investigation on Aerodynamics of Vehicles Running in Close Proximity（Influence of Body Shape）
Get PDFAerodynamic characteristics between two vehicles running parallel at very close distance are discussed in this paper. In case of a truck passing a passenger car like a sedan, a hatchback or a minivan type vehicle, measurements of the aerodynamic drag, side force and yawing moment were performed by a wind tunnel. From the result of the measurements and numerical simulations, the following conclusions became clear. As for a side-force, the force acted in the direction which pushed out the passenger car outside from the truck as the truck approached the passenger car. As the truck caught up with the passenger car, the direction of the side-force became reverse. When the front of the truck reached at the front of the passenger car, the side-force which pushed the passenger car to the truck became maximum. As for the yawing moment, the interesting characteristics became clear.departmental bulletin pape
A Study of Ringing Sound Generated with Wineglasses
Get PDFThis paper analyzes the mechanism of frictional sound, “wine glass ringing,” caused by rubbing the rim of a wine glass with a wetted finger. We consider the following two cases.
（1）The rim of a fixed glass（glass harp）rubbed at a certain speed with wetted finger, and（2）the rim of a rotating glass（glass harmonica）rubbed with a wetted finger. The sound was caused by the negative slope of frictional coefficient against sliding velocity between a glass and a wetted finger. The sound was caused by a light load, approximately 0.15N. With a larger load, the sound level becomes smaller. Furthermore, the sound frequency was close to the natural frequency of glass at the mode having two nodal meridians and having the minimum damping coefficient. On a simplified view, one might represent the wineglass as a thin-walled cylinder, attached to a rigid circular base. This model was in close agreement with the experiment results. Results were the same for experiments conducted on 16 kinds of vessels.departmental bulletin pape
Prevent of Drowning through Basic Swimming and Water Safety Skills for Physical Education Students
Get PDF2021年４月に国連総会決議でGlobal drowning preventionが宣言され，世界溺死防止デーが毎年７月25日に開催されることとなった．多くの河川・周囲に海という身近に水環境がある日本では，多くの台風・豪雨災害・洪水・津波が発生してきている．水に対処する知識と行動が安全教育に求められている．水泳系領域の具体的指導内容は，水遊びから水に浮く・クロール・平泳ぎなどの泳法に加え，小学校５年生から足からの入水と背浮きと，着衣のまま水に落ちた場合の溺水予防のための対処が取り入れられた．さらに溺水予防に貢献する指導者となる可能性の高い体育専攻学生のため，水中での様々な身体操作から入水，立ち飛び込み，様々な泳法を取り入れたプログラムを提供する．articl
The Relation Between Rustle of Clothes and Rubbing Noise Caused by Mangetout
Get PDF「衣ずれの音」は日本人には昔からよく親しまれた音である。歩くときに着物の裾などがこすれ合って発生する。「絹ずれ」とも呼ばれることがあるが，これは絹の着物が衣ずれを比較的発生しやすいことによる。一方，エンドウ豆の一種である「絹さやエンドウ（絹さや）」は八百屋やスーパーの野菜売り場でよく目にする。この絹さやの名称はさやどうしがこすれ合って発生する音が衣ずれの音に似ていることから名づけられたようである。本報告では，「衣ずれの音」と「絹さやエンドウのこすれ音」の比較実験を行い，発生する音の周波数がよく似ていることを確かめた。departmental bulletin pape
Translation and Annotation of “The Mathematical Classic of Zhang Qiujian （張丘建算経）” Vol. 7
Get PDF“The Mathematical Classic of Zhang Qiujian” was written during the Southern and Northern Dynasties, which was listed as one of the Ten Computational Canons（算経十書）during the Tang dynasty. The aim of our research is to provide a complete translation and annotation of it from the viewpoint of our previous work on “The Nine Chapters on the Mathematical Art（九章算術）.”
This is the seventh article based on our research and results in which we studied the problems 26 to 38 of the third volume.『張丘建算経』は南北朝期に書かれた算術書であり、唐代に編纂された算経十書の一つである。我々は、我々の『九章算術』研究を起点に、『張丘建算経』の訳注を完成させることを目的としている。本訳注稿では南宋本を底本とし、これに諸家の校訂を加える。
本論文では、『張丘建算経』巻下の算題［二六］～［三八］に対する訳注を与える。departmental bulletin pape