著者

神田 皆人 向 篤志 島添 健次 田村 雄介 禹 ハンウル 上ノ町 水紀 石田 文彦 河原林 順 土屋 兼一 富田 英生

雑誌

2023年秋の大会

巻号頁・発行日

2023-07-19

著者

石田 文彦 小島 浩治

出版者

日本科学史学会

雑誌

科学史研究 (ISSN:21887535)

巻号頁・発行日

vol.39, no.215, pp.154-164, 2000 (Released:2021-08-23)

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This study attempts to grasp the actual situation of the Hyakukou Kagaku Ka (Industrial Chemistry Course) in Niigata School and also deals with the process and background of closing in 1880, 4 years after its establishment. 56 students were admitted to the Hyakukou Kagaku Ka in total and 17 students completed this course. The main academic subject was analytical chemistry and the promotion of the textile industry and the petroleum industry was targeted. In the Niigata Prefectural Assembly, the closing of the Hyakukou Kagaku Ka was decided for the reason that the major industry of Niigata Prefecture is agriculture and industrial chemistry is not so pressing and students are a few in reality. Local leaders, members of the Prefectural Assembly, who actually promote policy standing between local officials and local inhabitants and best know the community, believe that a policy promoting industry by means of industrial chemistry, proposed by local government officials is impractical and the actual requisite is agriculture. Investigating the situation of the textile industry and the petroleum industry in Niigata Prefecture in those days, we pointed out that both industries were not in a situation to receive engineers who studied industrial chemistry and it was 1900's after about 25 years that these engineers were to be demanded.

著者

石田 文彦 小島 浩治

出版者

日本科学史学会

雑誌

科学史研究 (ISSN:21887535)

巻号頁・発行日

vol.39, no.214, pp.99-107, 2000 (Released:2021-08-23)

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This study deals with the progress and background of establishing the Hyakukou Kagaku Ka (Industrial Chemistry Course) in Niigata School, the purpose of Hyakukou Kagaku Ka and its curriculums, etc. Niigata School for English-language was established by Governor Masataka Kusumoto in 1872, and it was the origin of secondary school in Niigata Prefecture. Kusumoto attempted to fix and develop secondary education with Niigata School, however, it became difficult to secure students owing to the competition with National Niigata School of English Studies established later. Governor Moriteru Nagayama, newly appointed under such circumstances, established the Hyakukou Kagaku Ka in Niigata School in 1876 with a model of the Seisaku Gaku Kyouzyou (Industrial Course) in National Tokyo Kaisei School with an intention of promoting the secondary education and industry in Niigata Prefecture. On the background where Niigata School and Hyakukou Kagaku Ka were established, we pointed out that Kusumoto and Nagayama, local government officials sent from the central government, had a policy achieving a national enrichment through promoting industry.

著者

石田 文彦 石井 太郎

出版者

日本産業技術史学会

雑誌

技術と文明 (ISSN:09113525)

巻号頁・発行日

vol.13, no.2, pp.1-28, 2003-07-10

参考文献数

66

著者

津田 展宏 山田 啓文 石田 文彦 宮下 正之 山口 正高

出版者

公益社団法人 精密工学会

雑誌

精密工学会誌 (ISSN:09120289)

巻号頁・発行日

vol.55, no.1, pp.146-151, 1989-01-05 (Released:2009-10-08)

参考文献数

4

被引用文献数

3 3

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We have developed the wide range scanning tunneling microscope (STM) to measure surface topography of a diamond turned gold mirror, a gold coated float polished glass surface and so on. Three dimensional positioning of our STM device is achieved not by using a famous piezoelectric tripod, but by monolithic high precision wide ange translation mechanisms, which we call multi-compound parallel spring. One of strong points of this device is that capability of this specially fabricated X-Y stage is to measure over a sample area of 70μm×70μm and is easily cut from a monolith. We have got an information that each diamond tip trace straightness of the turned surface using a high precision air bearing lathe changes noticeably in the portion. This fact shows that we still have to improve not only such manufacturing conditions as tool radius, and the roughness of tool tips but also the surface finish machine environments especially vibrations.

著者

柏手 章宏 石田 文彦 島井 博行 和田 克己 阪口 豊

出版者

一般社団法人電子情報通信学会

雑誌

電子情報通信学会技術研究報告. NC, ニューロコンピューティング (ISSN:09135685)

巻号頁・発行日

vol.105, no.659, pp.67-72, 2006-03-10

被引用文献数

3

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ヒトがタスク条件に応じて関節スティフネスを調節していることを検証するため,質量の異なる4種の球を掌で打撃する際の筋活動を計測した.その結果,球の質量の増加に応じて手首関節に関わる筋の同時活性度が高まることがわかった.次に,関節スティフネスが球の初速度に与える影響を調べるために,手首関節のトルク生成源を弾性要素を持たないトルク生成要素とした条件と受動的な弾性要素とした条件を設定して数値実験を行なった.その結果,初速度の最大値は前者の方が大きいものの,運動軌道のばらつきによって生じる初速度の変動は後者の方が小さく,また,球の質量が大きいほど後者の方が平均的パフォーマンスが高くなることが明らかになった.以上の結果は,ヒトが平均的な運動パフォーマンスが向上するように関節スティフネスを調節している可能性を示唆する.