Mengchun Zhang

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For a novel 3-PRRR/PPRR redundantly actuated parallel mechanism, the dynamic modeling and sliding mode control are presented. Firstly, the kinematic analysis of the parallel mechanism is completed and the dynamic model of the parallel mechanism is established by the Lagrange formulation. In order to improve the computation efficiency of the model and thus(More)
The aim of this study was to explore the current situation of the educational competence for 120 kindergarten teachers from the teacher's qualifications and seniority by using computational software. The kindergarten teacher competency questionnaire was used to investigate the kindergarten teachers, and SPSS19.0 software was carried out to analyze the data.(More)
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