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This paper presents a modeling and analysis methodology for the current loop control design for three-phase high power converters with extremely low sampling ratios. It applies the complex transfer function and the double-sided Frequency-Response-Functions to quantitatively characterize the system such as the phase margin, dynamic performance and the noise immunity. Both standard PI control and PI...
Operating room (OR) plays a key role in hospitals. Resources required for surgery process include both manpower and facilities. A rational utilization of resource may lead to high efficiency of OR, as well as patients satisfaction. A discrete event system simulation model of ORs in hospital is built under SIMIO. The case study is investigated based on current patients flow and operation data collected...
This author firstly reviewed the analysis of the social welfare effect for forest certification under the partial equilibrium, then based on the general equilibrium analysis's angle, full considering forest certification's environment benefit situation, the author has analyzed the forest certification social welfare effect by the neoclassic model, and pointed out that so long as the gains by the trade...
In this paper, as the multibody system dynamics analysis of one dieselpsilas pushrod-type valve train is concerned, the algorithm of calculation campsilas profiles from the lift of roller tappet is presented according to the kinematics analysis firstly. Then the flexible body models of the pushrod, rocker arm and valves that are considered to have significant flexibility are built. Comparing the analysis...
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