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Gd in Mg-RE liquid alloy has a high solid solubility, which can rapidly decreases with the drop of temperature. Thus the solid solution and aging reinforcement of liquid Mg alloy can be achieved. The micro-structure and mechanical properties of Mg-Gd-Y-Nd-Zr alloy under as-cast and aging state were studies by composition analysis, micro-structure observation and mechanical properties test, and the...
In this paper, we established rigorous relationship between target recognition performance and the parameters of a fixed waveform via Kullback-Leibler information number of single observation (KLINs). The method we proposed takes advantage of the methodology of sequential hypothesis test. It depicts the target recognition efficiency of certain radar waveform parameter in the metric of average number...
There exist challenges in continuous monitoring application, mainly due to the limited battery power of sensor nodes all the time. Power efficiency is the key. A power efficient top-k monitoring framework called PECTMA is proposed which is a three level architecture including four novel algorithms, CRVMR, ESR, top-k-sort and BRCR. The basic idea is to install two level filters. One is at each sample...
The paper analyzes the character of distribution network, utilizes the multi-objective differential evolution algorithm to carry on selecting and location optimization about the automatic equipment, takes switch as code of the chromosome gene, in each evolutionary generation, divides the community into three sub-communities which execute variation, crossover, fitness evaluation and select operation...
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