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Design an Implementation of an Ontology-based Knowldge Management System
Hideki Mima,Taesung Yoon,Katsumori Matsushima 한국전자거래학회 2004 한국전자거래학회 학술대회 발표집 Vol.2004 No.-
The purpose of the study is to develop an integrated knowledge management system for the domains of genome and nano-technology, in which terminology-based literature mining, knowledge acquisition, knowledge structuring, and knowledge retrieval are combined. The system supports integrating different types of databases (papers and patents, technologies and innovations) and retrieving different types of knowledge simultaneously. The main objective of the system is to facilitate knowledge acquisition from documents and new knowledge discovery through a terminology-based similarity calculation and a visualization of automatically structured knowledge. Implementation issue of the system is also mentioned.
Recent Progress and Surface-Related Key Issues in III-V Semiconductor Nanoelectronics
Hideki Hasegawa 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.3
Recent trends toward a ``ubiquitous network society" have opened up new horizons for III-V nanoelectronics based on nanostructures which will have much wider application areas than they do today. In this paper, recent progresses and issues of III-V nanoelectronics are reviewed, focusing on achievements by the author's group. As for nanostructure fabrication, a combination of top-down and bottom-up approaches, instead of the traditional top-down approach applied to multi-layer epitaxial wafers is required to form high-density nanostructure networks. As such, a selective molecular beam epitaxy growth of nanowire networks is presented and discussed. Large-scale integration of quantum nanodevices requires a new combination of system architecture and hardware architecture, such as the hexagonal (BDD) quantum logic circuit approach. The remaining key issue is the removal of surface states and Fermi level pinning from surfaces of nanostructures. Use of a silicon interface control layer (Si ICL) is shown to be promising for this purpose.