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In recent years, advanced utilization of contents of information are required to use information and knowledge resources sufficiently. In order to satisfy such requirement, we made a generating system of conceptual structures based on semantic relationships among technical terms and an information retrieval system using them. This paper reports improvements on an automatic extraction of equivalent relationships which called C-TRAN.
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¡¡It is very important to evaluate the characteristics of materials in order to use them effectually. However, the usual database systems can't be used easily in a uniform manner¡¤because the developed systems don't have a common format and haven't opened to the public.Therefore, in this study, the computer software which can search material data accumulated by XML document and evaluate the characteristics of materials through the Internet has been developed using the Java language.The Java is a very useful programming language which is possible to develop the application for handling the data through the Internet.The retrieval system has been developed using Servlet and XSLT. The evaluation tool is possible to express some graphs¡ÊS¡ÝNcurve¡¤Stress¡ÝStrain curve,etc.¡Ëand some parameters of the equation can be determined. The developed open system is very useful for the engineering design.