Development of Highly Versatile Phase Diagram Database on the Object-Oriented Scheme

面向对象方案的高度通用相图数据库的开发

• 批准号: 10650686
• 负责人: ONO Noboru
• 金额: $ 2.11万
• 依托单位: Hachinohe Institute of Technology (2000)Tohoku University (1998-1999)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650686/
• 关键词: phase diagram; database; object-oriented system; crystal structure; 鉄基二元系状態図; オントロジー

Distinct features and functionalities of the object-oriented database system may be exploited in the construction of highly versatile phase diagram database services. To test and demonstrate this expectation, the following tasks were carried out : (1) an object-oriented database system program was developed from scratch and tuned for the phase diagram database services ; (2) Classes necessary for phase diagram databases were designed ; (3) Over a hundred phase diagrams were input to a database ; (4) A public phase diagram database service was carried out.During this research term, about 150 collection and improvements were made in the object-oriented database system, MOOD-SX, to achieve further versatility and higher performance. These include the transfer and display of image files and also the development of a user-interface Java applet that allows the database access from the popular web browsers. The MOOD-SX is enlisted in more than 5 public software archives such as SAL, Scientifi … More c Applications for Linux.In the class design, it was noted that the object-oriented class design was equivalent to the ontology in the field of knowledge engineering. Special care, therefore, was taken to make explicit and formal representations of concepts that appeared in the descriptions of equilibrium phase diagrams. For example : (1) a pseudo-binary phase diagram is specified with two terminal compositions but these compositions may be represented as well with substances with the compositions ; (2) a phase may be characterized with a crystal structure, a crystal structure being characterized with a structure type and composition ; and (3) phase as such is an entity distinct from substance.With the class set designed based on discussions as above, about 100 pieces of iron-base binary phase diagrams were input to a database together with about 300 phases and about 80 structure types that appear in the diagrams. The database was offered to public access. Upon this data input, several inconsistencies were found in the source information provided and well proofed in the form of printed tables. This demonstrates the effectiveness of the compilation of data in an object-oriented scheme. Less

面向对象的数据库系统的独特特征和功能可用于构建高度通用的相图数据库服务。为了验证这一预期，我们进行了以下工作：（1）从零开始开发面向对象的数据库系统程序，并针对相图数据库服务进行了调优：（2）设计了相图数据库所需的类：（3）将一百多个相图输入数据库;（4）实现了公共相图数据库服务，在本课题研究期间，对面向对象的数据库系统MOOD-SX进行了约150处的收集和改进，使其具有更好的通用性和更高的性能。其中包括图像文件的传输和显示，以及用户界面Java applet的开发，该applet允许从流行的Web浏览器访问数据库。MOOD-SX已被SAL、Scientifi等5个以上的公共软件存档所收录 ...更多信息 c应用程序在Linux中的应用。在类设计中，指出面向对象的类设计等价于知识工程领域的本体。因此，要特别注意对平衡相图描述中出现的概念进行明确和正式的表述。举例来说：（1）伪二元相图用两个末端组成来指定，但是这些组成也可以用具有所述组成的物质来表示;（2）相可以用晶体结构来表征，晶体结构用结构类型和组成来表征;和（3）阶段本身是一个不同于实质的实体。通过基于上述讨论设计的类集，将约100张铁基二元相图与图中出现的约300个相和约80种结构类型一起输入数据库。该数据库供公众使用。在输入这一数据时，发现所提供的原始资料中有几处不一致之处，并以印刷表格的形式进行了很好的校对。这证明了在面向对象的方案中汇编数据的有效性。少

项目成果

N.Ono, R.Kainuma, H.Ohtani, K.Ishida and K.Kato: "Ontology for Phase Diagrams"The proceedings of International Conference on Intelligent Processing and Manufacturing of Materials Indexed CD-ROM. (1999)

N.Ono、R.Kainuma、H.Ohtani、K.Ishida 和 K.Kato：“相图本体论”材料智能加工与制造国际会议论文集索引 CD-ROM。

Noboru Ono: "Ontology on Materiales Science and Engineering" Proceedings of 8th German-Japan Workshop on Chemical Information. (印刷中). (1999)

Noboru Ono：“材料科学与工程本体论”第八届德国-日本化学信息研讨会论文集（正在出版）。

Noboru Ono: "Ontology on Materials Science and Engineering"Proceedings of 8^<th> German-Japan Workshop on Chemical Information. 75-77 (1999)

Noboru Ono：“材料科学与工程本体论”第八届德日化学信息研讨会论文集。

小野 陽: "Ontology for Phase Diagram Databases"Proc.IPMM^!99 CD-ROM (ISBN 0-7803-5490-7). (1999)

Yo Ono：“相图数据库本体”Proc.IPMM^!99 CD-ROM (ISBN 0-7803-5490-7) (1999)。

N.Ono: "Ontology on Materials Science and Engineering"The Proceedings of 8^<th> German-Japan Workshop on Chemical Information. 75-77 (1999)

N.Ono：“材料科学与工程本体论”第八届德日化学信息研讨会论文集。