著者
木村 尚 平林 平八郎 徳吉 睦生
出版者
一般社団法人 粉体粉末冶金協会
雑誌
粉体および粉末冶金 (ISSN:05328799)
巻号頁・発行日
vol.10, no.4, pp.172-180, 1963

A continuous method of producing iron strip from powder has been developed. Iron powder directly conversed to green strip by roll compacting, and which was continuously sintered, hot rolled and cooled in hydrogen atmosphere and coiled up. The effects of various continuous powder rolling factors, such as the sintering temperature, roll speed, and hot rolling lood on the properties of hot rolled strip were investigated with Husquvarna Star electrolytic iron powder and H&ouml;gan&auml;s sponge iron powder.<BR>In general, with increasing the sintering temperature and hot rolling lood the physical and mechanical properties of iron strip by powder rolling were improved, whereas the effect of roll speed was different, depending upon the sinterability of iron powder. These properties obtained were considerably well for the powder metallurgical product, although the sintering time was short. According to the repeated hot rolling or annealing and cold rolling, the pro. perties of the iron strip were equal to those of the conventional iron strip, especially the one made from Husquvarna Star iron powder showed superior magnetic properties.
著者
赤岩 隆
出版者
神戸薬科大学
雑誌
神戸薬科大学研究論集 : Libra (ISSN:13452568)
巻号頁・発行日
vol.8, pp.23-56, 2007

サルマン・ルシュデイの『真夜中の子供たち』は難解な作品である。その理由と、いわゆるマジック・リアリズムと呼ばれるものとは、じつに深い関係を持っている。本稿においては、『真夜中の子供たち』におけるマジック・リアリズムの有り様を詳しく探り、それとともに、この難解なルシュデイの作品を少しでも読みやすいものへと解きほぐすことによって、より本格的な作品論へと議論全般を開くことを目標とする。
著者
ARIMOTO Suguru NGUYEN Pham Thuc Anh
出版者
一般社団法人電子情報通信学会
雑誌
IEICE transactions on fundamentals of electronics, communications and computer sciences (ISSN:09168508)
巻号頁・発行日
vol.84, no.1, pp.39-47, 2001-01-01
被引用文献数
4

This paper is concerned with analysis of nonlinear dynamics under geometric constraints that express pinching motions of a pair of multi-degrees of freedom fingers with soft tips. The dynamics of such a pair of soft fingers can be expressed by a set of complicated nonlinear differential equations with algebraic constraints, even if the motion is constrained in a plane. However, it is shown from the passivity analysis that dynamic stable grasping (pinching) can be realized by means of a feedforward input of desired internal force with coefficients composed of elements of Jacobian matrices plus a feedback of the difference between moments of rotation exerted at both sides of the object. It is shown in the case of a pair of 2 d.o.f. and 3 d.o.f. fingers (corresponding to a pair of thumb and index fingers) that a principle of linear superposition is applicable to design of additional feedback signals for controlling simultaneously the posture (rotational angle) and position of the mss center of the object, though the dynamics are nonlinear. A sufficient condition for applicability of the principle of superposition is discussed and given as a condition for unique stationary resolution of the overall motion to elementary motions (stable grasping, rotation control, x and y coordinates control). The principle implies that a skilled motion can be resolved into some of elementary motions which human can learn separately and independently.
出版者
婦人之友社
雑誌
婦人之友
巻号頁・発行日
vol.104, no.6, pp.10-14, 2010-06
著者
遠藤 秀紀 九郎丸 正道 西田 隆雄 服部 正策 林 良博
出版者
社団法人日本獣医学会
雑誌
日本獣医学雑誌 (ISSN:09167250)
巻号頁・発行日
vol.54, no.1, pp.119-123, 1992-02-15
被引用文献数
2

心筋組織の肺静脈壁への分布が, 多くの哺乳類で報告されている. 同組織の哺乳類における系統発生学的起源を明らかにする目的で, 食虫類ジャコウネズミ(スンクス)の肺内肺静脈を, 光顕及び電顕を用いて観察した. 心筋組織は肺門部より肺内肺静脈小枝にまで広く分布し, 同構造の系統発生学的起源は, 最も原始的な哺乳類のグループにまで, さかのぼることができると考えられた. 微細形態学的には, 肺静脈の心筋細胞は, 左心房の心筋細胞と類似し, 大型の脂肪滴の分布が特徴的であった. また, これらの結果から, 同構造が肺循環血流の制御に寄与していることが示唆された.