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The conventional topic map is extended on the structure of logic organization. The association of topic-knowledge element-occurrence and the relevance between the topics and between the knowledge elements are established. Distributed knowledge management based on extended topic maps is proposed. The semantic organization and joining between the physical resource entities and the abstract concepts...
Street lamp lighting system is an essential part of public facility for city construction. To design an automated reliable and efficient street lamp remote control system is certain request for modernization of the city. The paper have studied and developed a set of street lamp management and controlling system based municipal affairs using modern computer technique and remote communication technique...
The conventional model for knowledge organization management is based on resource; index and metadata catalog. It is difficult to express the concept of knowledge resource, the information contained in knowledge elements and the inner relevance of information. In an attempt to solve this problem, a new model for distributed knowledge organization management is proposed based on extended topic maps...
Monitoring seasonal changes in vegetation activity over wide areas is essential for many applications, Satellite remote sensing offers a systematic and objective means for detecting and monitoring ecological environment.A large amount of satellite remote sensing data at different spatial, spectral and temporal resolutions was proved to estimate Land cove change.One of the most widely used approaches...
The on-line monitoring of high voltage equipment is an important technique to ensure the safe of electric power transmission. And the key of the technique is the detection of divulge current. At first, the error of the current transducer is analyzed. Then a type of low current transducer with cored structure and high accuracy is described which is specially designed for on line monitoring of high...
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