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Stator of a permanent magnet synchronous motor (PMSM) for electric vehicle driving is focused on as the research object. Six kinds of finite element models for winding are built, and compared with test results to elect the model consistent with the actual stator winding. This model established contributes to the reference of motor stator vibration characteristics analysis model. On the basis of this...
As the analysis of business efficiency factors, this essay will mainly concentrate on effect from inner and micro factors. Moreover, the essay adopts company scale, proprietorship, human capital, and market share rate as independent variables, and the malmquist index, Technical Change and Efficiency Change as variables to set the model. Then it is found that the employee quality and market share rate...
Based on the supply and demand equilibrium market model, the paper uses the panel data model of 35 cities in China from 2003 to 2008 to explain inter-metropolitan variation in housing rents in China. The main conclusions are: (1) The housing rents are positively correlated with housing prices, but negatively correlated with housing price growth expectations; (2) The proportion of non-household population...
Based on AHP, this article analyzes the Northwest Energy Pipeline Competitive Strength Factors, and establishes the corresponding evaluation system. It also reaches the sort results of those factors according to the importance of achieving the overall goal. And finally, it proposes some relevant suggestions to the three types of Factors, which provides reference basis for the Government to plan and...
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