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The method of failure modes, effect and criticality analysis (FMECA) is one of absolutely necessarily elements in reliability systems engineering. The effective application of FMECA can improve the freight car quality and reliability. The basic principle of FMECA is introduced. The method to apply FMECA into bogie failure of railway freight car is proposed. The quantitative and qualitative evaluation...
The access control service has been an important orientation in the security research. In this paper, the essentiality of access control service in the E-Commerce Web was analyzed; the relative technologies were introduced at the same time. And through describing a concrete collaborative e-commerce platform, a detailed description of how to design and implementation of access control systems were...
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