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This paper presents a data mining based dynamic scheduling approach which responses to changing system status for semiconductor manufacturing system. The proposed approach, based on the historical data, applies genetic algorithm as feature selection tool to eliminate the redundant data and K-nearest neighbor algorithm as a classifier to select the scheduling rule. Finally, a scheduling strategy selection...
the end position addition mass and activation joint rotary inertia have important effect on elastic motion stability of flexible manipulator arm. On the basis of mode analysis, the dynamics model of flexible manipulator arm is deduced using Lagrange equation, the state space expression and transfer function are deduced after state variable and input-output are selected. The necessary and sufficient...
First of all, the effect of flexural rigidity on the elastic vibration amplitude of the end position of flexible manipulator arm is analysed systematically, and according to this analysis, we hold that the increase of flexural rigidity can reduce the vibration amplitude of the end position of flexible manipulator arm. Then, the effect of axial tensile force on natural frequency and flexural rigidity...
Traveler' process of decision-making is very complicated, which influenced by many factors. Based on the analysis of activity based travel demand theory, the path diagram is given, which describes the decision processes of travelers. Analysis the influence factors from the aspects of socio-demographics, activities participation and travel behaviors, the endogenous and exogenous variables of model...
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