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文中运用极大似然法、Bayes方法、经验Bayes方法,给出了Γ部件冷贮备系统失效率、可靠度函数与平均寿命的点估计,并利用Monte-Carlo方法,对3种估计结果进行了模拟比较,结果表明经验Bayes估计整体上优于Bayes估计和极大似然估计。 相似文献
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Experimental study on crystallization of polystyrene spheres and SrTiO3 particles in laser standing wave field is presented. The diameter of polystyrene, which are able to be trapped, is 7 times smaller than that reported by Burns, the corresponding lattice constant is reduced to 1.5 μm. The crystallization effect of SrTiO3 particles with a refractive coastant of 2.5 in the visible range is observed for the first time. Based on the results above we believe that it is possible to construct photonic crystal with lattice constant extended to visible wave range by this method. 相似文献
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