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A new particle-moving algorithm for particle-in-cell simulation of plasma is developed based on the linear multistep method. The conventional and the new algorithms are investigated by numerical experiments, which are conducted in three typical fashions of the electron motions in electromagnetic fields, namely, cyclotron in homogeneous magnetic field, drift in ${\boldsymbol {E}} \times {\boldsymbol {B}}$ ...
Shin incorporates a probabilistic method for revising trust estimates in trustees, yielding higher prediction accuracy than traditional approaches that base trust exclusively on a series of referrals culminating with the trustee.
Wireless embedded smart cameras provide flexibility in camera deployment in terms of the locations and number of the cameras. However, these battery-powered embedded vision sensors have very limited energy, memory, and processing power. Energy consumption and latency are two major concerns in wireless embedded camera networks. In multi-camera tracking applications, the amount of data exchanged between...
In order to solve task scheduling and load balancing problems of distributed search engines, a GNP-based scheduling strategy for distributed crawling and a load balancing method are proposed in this paper. Internet distance estimating mechanism is adopted as a replacement for large-scale network distance measurement, which not only improves response speed of the system, but also reduces loads on WAN...
Electronic scanivalve system is an important measuring equipment for fluctuating wind pressure in wind tunnel tests, and its stability and accuracy may be affected by many factors. Based on wind tunnel tests, one study was undertaken on the characteristics of signals collected with an electronic scanivalve system with conditions of natural ambient excitations, small and medium perturbation excitations,...
In the paper, a new field ground fault protection with voltage injection is introduced. The injection voltage of protection is a low frequency square wave voltage, it is transformed from an AC voltage by transformer, rectifier and electronic switches, and its frequency is controllable. The principle, criterion and hardware configuration of protection are given, and several operation problems are analyzed...
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