When the original source signals and input channel are unknown, blind source separation (BSS) tries decomposing the mixed signals observed to obtain the original source signals, as seems mysterious. BSS has found many applications in biomedicine science, image processing, wireless communication...

In this paper, the authors first analyze the research and development of semantic retrieval technology based on ontology, and introduce the key theoretical knowledge of ontology and semantic web, including the definition, description language, classification and semantic web. Secondly, this...

With the development and construction of the city, more and more high-rise buildings, more and more intensive, urban high-rise building pilot pollution problems become more and more prominent, urgent technical researchers continue to optimize the current communication network solutions. CDMA...

In the case of coal mine accidents, in order to ensure timely rescue of the suffering people in a complex environment of underground localization, focusing on Received Signal Strength Indicator (RSSI) in underground personnel positioning accuracy is low and the problem of dynamic tracing...

As society progresses with computer technology, the rapid development of network technology, data, and information technology has become the development trend in today's society. How to improve college employment rate and improve their own competitiveness is a problem faced by many universities....

This design introduced the operation process of the lift. In accordance with the requirements of energy conservation design teaching building Mingde building automatic control of the lift. By setting the TDD slope integration time Siemens MM440 transducer to control the elevator has the speed,...

The large-scale online open course (MOOC) is a new online learning model in the field of distance open education in recent years. It embodies the learner as the center of the teaching philosophy, changing the traditional network curriculum content fixed, structured features, so that learners...

Hybrid electric vehicle (HEV) is a kind of new cars with low fuel consumption and low emissions, which combines the advantages of traditional vehicle's long endurance and no-pollution of pure electric vehicles. It represents the future direction of development of vehicle for a period of time....