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Graph theory is introduced into the contact structure of power supply block which is based on topological connection between substations. According to the basic principles of constructing power block contact models, four typical power block contact models with any number of interconnected substations are constructed. On this basis, the structural characteristic indexes of power block contact models...
In this paper, we study a re-entrant line with unreliable exponential machines and finite buffers, operating under last buffer first serve scheduling policy. First, an approximation method is presented to estimate the throughput of the re-entrant line. Then, a system approach to identify bottleneck based on blockage and starvation information is proposed. It has been shown that the approximation method...
According to the monitoring and analysis of chloroform in the water distribution network in a northern city of China, the variations of chloroform in the water distribution network and the major influence factors were studied. Using principle component analysis method, the prediction model which including 9 water quality indexes was established to predict the concentration of chloroform and the average...
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