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This paper compares the characteristics of serial, parallel and LCC compensation topologies of secondary-side in wireless powering systems with a constant-current primary-side. The topologies characteristics of power, efficiency and load are carefully analyzed and detailed presented. And the correctness of theoretical analysis is verified by simulations. This study results can guide the selection...
This paper focuses on the design of secondary control loop in wireless EV charging system according to model calculation instead of empirical estimation or simulation attempt. To simplify the structure of secondary circuit, semi-bridgeless active rectifier is used. The analysis and modeling of semi- bridgeless active rectifier is completed by small-signal modeling method. The secondary control loop...
Response speed and control current accuracy are two critical factors of high speed proportional solenoid valve's precise control on the oil pressure of hydraulic system. As an integrated system, solenoid valve including several complex physical system involving electronic, electromagnetic, mechanical and hydraulic system. This paper analyses the current and pressure characteristic curve of the high...
A physical model using network modeling method, which aims at the dynamic matching between the newly developed 8-speed automatic transmission (8AT) and the target car, was introduced based on the SimulationX software platform. The modeling method and key technologies were presented through the modeling process of the drive train, including engine, torque converter and automatic transmission. After...
Based on the Planck formula, we established the model of blackbody sub-millimeter wave radiant brightness and analysed mainly the relationship between metal object emissivity and wavelength, temperature and transmit direction. Additionally, we revealed the change rules about different temperature metal object radiant brightness in Infrared sub-millimeter wave and microwave.
Organization commitment is an invisible contract between organization and employee. How to use this to inspire and keep employees in organization is vital to managers. This paper use three level organization commitment model and turning over model based on a sample from a certain IT company in Wuhan to discuss the relationship between organization commitment and intention of employees turning over...
In this paper, the problem of interval controlling between arriving flights is researched. According to character of arriving flights dynamic process, bring forward reasonable assumption, and convert problem of arriving flights' interval controlling, whose attribute is discrete event dynamic system, into problem of generalized dynamic system controlling. Through analyzing actual measuring data, establish...
Traffic modeling contributes remarkably to network design and performance evaluation in wireless networks. Various traffic models have been proposed for wireless networks thus far.. In order to provide a better understanding in this area, the article presents a detailed investigation to current studies of traffic models in different wireless networks. And then the origins of model differences are...
Our study demonstrated that caching scheme performs better in high density mobile networks than in sporadic circumstance. Based on the analysis of correlation between cache performance and the zipf-like user behaviors, we proposed some possible methods to improve cache performance in high density mobile networks.
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