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The control strategy for three-phase-high-power-factor PWM rectifier is studied, and the methodology of building the small signal model of the main power circuit is proposed in this paper. High frequency model for the rectifier mentioned and the input-to-output transfer function for the system are deduced with analysis. Design principle and method of the voltage regulator are given based on the model...
Mouse serum contains a factor(s) that prevents freshly prepared murine Langerhans cells(LC) from transforming in vitro into antigen presenting cells capable of activating naive, syngeneic T cells. By contrast, neither human, rabbit nor bovine serum inhibits murine LC in this manner. To determine whether the effects of murine serum on murine LC is merely a species anomaly, human serum was tested...
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