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Based on the mixture theory, to clarify the mechanism of macro segregation of blooms, a mathematical model of macro segregation coupled with a heat transfer equation and a solute balance equation is developed. The software is built with VC++ as the program language to predict the process, which can simulate the temperature filed, the solute concentration in the central portion and so on. The semi-analytical...
For the complex environment of coal mine, there are many noises and random errors, which make larger location error in coal mine, lead to the difficulty of finding the precise positions of staff. This paper presented an improved location algorithm based on time average, which was the characteristics of lower computational complexity, less communication cost and stronger anti-interference ability....
A new early warning method of the complex systems for real estate market is proposed in this paper. First, principle component analysis method is adopted, and 8 important indexes are screened from a great number of indices. Second, these 8 important indices are divided into 3 kinds which are called as antecedent, synchronous and delayed with the time-difference correlation analysis method. Third,...
This paper examines the efficient quantization of LSP parameters for very low bit rate vocoder below 300 bps, a new quantization scheme called variable dimension matrix quantization (VDMQ) is presented. In the VDMQ scheme, the extracted LSP parameters matrix with variable dimension is quantized directly without dimension conversion. Based on the distance measure definition between tow LSP matrices...
The state equation of five degrees of freedom rotor system suspended by AC hybrid magnetic bearings is given, and the approach to how to use linear quadratic method of optimal control theory to design a centralized and decentralized parameter controller is introduced. The simulation analysis between the centralized and decentralized parameter controllers is completed using MATLAB software. The digital...
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