著者

檀 武弘 村松 祐治 山縣 敏博 星本 健一 木村 隆

出版者

日本結晶成長学会

雑誌

日本結晶成長学会誌 (ISSN:03856275)

巻号頁・発行日

vol.21, no.4, pp.385-390, 1994-09-25

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Under microgravity conditions, interdiffusion experiments of molten Au-Ag alloy system were undertaken. The diffusion in the flight specimens was faster than that in the ground ones, and their concentration curves deviated from theoretical ones, extraordinarily. These results may be ascribed to Marangoni convection flow, which became dominant under microgravity conditions in place of the gravitational convection one. It may be caused by the existence of free surface and a very large concentration gradient at the interface of the diffusioncouple type of specimen. The suppression of free surface formation and consideration for the wettability between molten alloy and crucible material will be indispensable.

著者

松尾 利行 西田 豊明 星本 健一

出版者

社団法人人工知能学会

雑誌

人工知能学会誌 (ISSN:09128085)

巻号頁・発行日

vol.12, no.1, pp.68-77, 1997-01-01

被引用文献数

3

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In this paper, we describe a practical method of extracting, structuring, summarizing, and integrating technical information from technical papers in metallurgy. The heart of the method is packets of domain specific knowledge called KP (Knowledge Pieces) in which procedures for extracting and structuring technical information from technical papers are embedded. We studied information structure of ten technical papers in metallurgy and constructed about a hundred KPs. We implemented a system called METIS which takes technical papers in metallurgy encoded in a mark-up language and produces a varieties of summaries and surveys including structured technical summary, visual display of similarites and differences of relevant papers, and Cause-effect relations. We have undertaken qualitative and quantitative evaluation of METIS against 106 technical papers so far. The evaluation demonstrates the reliability and robustness of our method.