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The emergency logistics system plays an important role in fighting against diseases and natural disasters. Evaluation of the emergency logistics system provide a basis for system optimization. An evaluation model for emergency logistics system based on hierarchy gray method is presented, which can solve uncertainty and complexity problems of emergency logistics system evaluation. The model establishes...
To investigate the effects of studying with network class and find out the virtues of network class, one hundred and sixty-seven students from the same grade and the same college who studied probability at the same time were enrolled in the study. They were divided into two groups, one group studied with traditional classroom education form and the other group studied with both traditional form and...
Metal rubber is a new type of structure function material made of tensioned metal wires. Although it has excellent performance, it is not widely used for its complex characteristics. Previous attempts are mostly based on mathematical model. In this paper, artificial neural network (ANN) is introduced as an alternative to mathematical model. The result from ANN showed a good agreement with the experiment...
In milling pocket corner, there maybe residual material left at sharp corners when stepover is extremely large in contour-parallel toolpath. This paper describes an improved pocket toolpath by inserting biarc transitions segments in contour-parallel toolpath. When reaching the sharp corner, the cutter moves along the biarc transitions toolpath so that the corner material is removed. The efficient...
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