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谷口 興紀 / 自然科学編121
「良好な景観」という用語について住民等による「景観計画素案」のための基礎的研究 その1
<著者名>  谷口 興紀
<発行年月> 2009年10月
<ISSN> 0287-1394
<概要表示>
 Generally speaking, fundamental terms used in the Act are defined at top parts. In case of Landscape Act there is no definition of “landscape”. Policy Scheme for the beautiful country-making which is in advance of it shows the term “landscape” by the ostensive definition using photos. Instead of the ostensive definition I propose the recursive definition of the term“ good landscapes” using the prolog language. Because the successful landscape plans by local residents themselves who are composed of various and diversified careers are agreed only by a series of procedural steps, not by using technical terms and depending on experts’ images. This is following the spirit of Landscape Act.
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中村 友道 / 自然科学編121
新しい概念に基づくダンパの開発(柔軟液体ダンパの発想と研究開発)
<著者名>  中村 友道
<発行年月> 2009年10月
<ISSN> 0287-1394
<概要表示>
 A new type of damper called “flexible liquid damper” is being developed. This damper is composed of a flexible ball partially filled with liquid. The important feature of this damper is the surface of the ball moves with the motion of the attached structure followed by the motion of the fluid inside the ball. This fluid-motion gives much energy dissipating effect, which results to a big damping ratio. In this paper, it is introduced how to be developed, and the basic trend of the damper is introduced by shaking tests, both by a pricking and by a shaker test. To compare with the dynamic damper, an analytical explanation is tried, but it is not enough to express the damping value of this damper only with the mechanism of the dynamic damper. It is supposed to have another effect by the fluid motion.
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吉川 晃,櫻井 恵三,小堀 修身,足立 勝重,沖田 耕三 / 自然科学編121
ポリカーボネートを用いたドリルの増減送り加工機構の検討
<著者名>  吉川 晃,櫻井 恵三,小堀 修身,足立 勝重,沖田 耕三
<発行年月> 2009年10月
<ISSN> 0287-1394
<概要表示>
 At present in strictly economic and environmental situations, the improvement of production efficiency and environmental bad influence is the actual subject in a drilling process. In this study, in order to solve the cutting mechanism during intermittently decelerated feed drilling with polycarbonate was investigated and the relation among the cutting force( thrust, torque), chip shape and breaking stress of chip etc. was discussed. The main results are as follows.(1) The torque force in case of intermittently decelerated feed drilling(Ff=2,3,4) nearly equal in comparison with conventional drilling(Ff=1) and the changed range of this torque varies approximately 20 % because of a dynamic component due to the periodic fluctuation of the applied feed.(2) The thrust force in case of intermittently decelerated feed drilling(Ff=2,3,4) increases approximately 50% in comparison with conventional drilling(Ff=1) and the changed range of this thrust varies approximately 50?60% than that of Ff=1.(3) The change of chip thickness is not a rectangle, it is chevron. On intermittently decelerated feed drilling, there was a chip of the folded condition on the slow feed part.(4) In breaking test of the chip, the breaking power is lowered of intermittently decelerated feed drilling further than conventional drilling. The breaking position is different by intermittently decelerated feed ratio.
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グェン ゴク タム / 自然科学編121
マルチスケール有限要素法によるアルミニウム合金板材の成形性の評価と改善
<著者名>  グェン ゴク タム
<発行年月> 2009年10月
<ISSN> 0287-1394
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サプコタ アチュタ / 自然科学編121
Intelligent Matching Algorithms for Particle Tracking Velocimetry
<著者名>  サプコタ アチュタ
<発行年月> 2009年10月
<ISSN> 0287-1394
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