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The sprag overrunning clutch is an important functional unit of electro-mechanical transmission system. The defects of the overrunning clutch in traditional cage structure, such as sprag easily to roll over, large wear and poor manufacturing process, etc happened under the condition of high rotate speed. On basis of analyzing the traditional structure of cage, the main parts structure, working principle...
Estate industry plays many efforts on economics' development. For investigating impact factors about estate companies' operating performance and finding the breakthrough to improve operational capacity, this paper constructed the evaluation model based on principal component analysis and adopted 40 estate listed companies as example to verify the model. The results indicated that the model, proposed...
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