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The Research on the Describing Knowledge of GIS Path Based on Natural Language

Chang D., Li B., Wang Q.

Przegląd Elektrotechniczny

2012

R. 88, nr 1b

159-162

The describing method of GIS path based on natural language becomes a focus of researches on the application of intelligent GIS. The knowledge of description of path is the core problem and fundament of realization. According to the classified method of knowledge which classification includes the fact knowledge, the rules knowledge and the controlling knowledge, the paper analyses and concludes all kind of description knowledge during the describing process of path, and builds the describing knowledge base of path. Finally, the paper realizes the prototype describing system with path chart and Chinese by which the describing knowledge are test.

Zaproponowano inteligentny system gromadzenia danych dla GIS (Geographic Information System). Bazą jest znajomość ścieżki. Artykuł analizuje wszystkie możliwe metody opisu i buduje bazę wiedzy.

Development of a large beam facility

Oh B., In S., Lee K., Jeong S., Seo C., Chang D.

Nukleonika

2006

Vol. 51, nr 1

37-42

A large beam facility for the application of high power ion beams has been developed at the Korea Atomic Energy Research Institute (KAERI). The primary usage of this facility is to develop an 8 MW neutral beam heating system for a tokamak, but other applications using a large beam would also be possible in the near future. The facility is composed of a bucket ion source (120 kV, 65 A), related beam line components including a large vacuum chamber (3 m x 4 m x 5 m), power supplies for the ion source, control and DAS (Data Acquisition System), beam diagnostics system, and a water circulation system (2 MW) for cooling of the beam line components. The maximum beam parameters at present are a beam energy of 87 kV and a beam current of 17.5 A with a beam size of 13 x 45 cm2. A maximum pulse length of 10 s could be achieved with a 1 MW beam power. The beam power with a hydrogen ion will be increased up to 7.5 MW during 5 s.