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Accurate data acquisition and processing is important to analyze the experimental results and research the theories of grain drying. Experiments of grain drying in a deep fixed-bed usually have characteristics of long period, difficult dynamic signal acquisition, large amount of experimental data and cockamamie data processing, etc. Aiming at the disadvantages of tiresome procedure, low efficiency...
Particle swarm optimization (PSO) has shown good search ability on many optimization problems. However, PSO easily suffers from local optima on some complex problems, such as multimodal function problems. This paper presents an improved PSO, namely IPSO, which employs an adaptive chaotic mutation operator. The adaptive mutation adjusts the step size of mutation in terms of the distance between the...
Isolation characteristics of a dual-band Wilkinson microstrip power divider have been analyzed and discussed. The design equations for the two isolation resistors are derived from transmission line theory. With the equations in this paper, one can obtain the best values of the two isolation resistors to satisfy the isolation requirements at two arbitrary frequencies f1and f2 very quickly. The equations...
Purpose Because of the relatively high morbidity and mortality of anastomotic leakage in patients with low rectal cancer who receive an anterior resection, many fecal diverting methods have been introduced. This study was designed to assess the efficacy and safety of the Valtrac™-secured intracolonic bypass in protecting low rectal anastomosis and to compare the efficacy and complications of Valtrac™-secured...
Aimed at the problem and difficulty of diagnosis after the event in the traditional form of the fault diagnosis of electric appliance for vehicle , a new fault diagnosis system is presented which is based on the combining of CAN bus and embedded database. Using a probabilistic neural networks (PNN) algorithm, the state parameters of engine were obtained by CAN bus and were used to identify multiclass-state...
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