PMX

A weighted sum method based on fuzzy satisfactory levels of objectives is proposed to treat the multiple objectives. Then, a genetic algorithm with sequence encoding and PMX crossover is developed to solve this kind of problems.

提出了一种基于目标模糊满意度的多目标加权和的方法，并开发了一个针对此类问题求解的遗传算法。

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Besides, folate levels in embryotic tissues were also significantly reduced by PMX treatment.

，同时PMX明显降低实验组的胚胎组织叶酸水平。

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But, genetic algorithms using ordinal strings must use special crossover operators such as PMX, OX and CX, instead of general crossover operators.

但是，序号编码的遗传算法不能在任意两条染色体的任意位置进行交叉，必须使用PMX，CX和OX等特殊的交叉算子，这些算子实施起来都很麻烦且效率不高。

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Adjustment of Even Field for PMX Type Nuclear Magnetic Resonance Spectrometer

PMX型核磁共振谱仪的匀场调节

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PMX caused DNA damages in murine embryonic stem cells, oxidative stress injuries of mice and apoptosis of embryonic stem cells, leading to abnormal closure of neural tube and ultimately NTDs.

体外实验中，PMX可以损伤小鼠胚胎干细胞DNA，造成小鼠氧化应激损伤，使胚胎干细胞发生凋亡，最终使神经管不能发生正常闭合，而导致神经管畸形的发生。

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In addition, the PMX operator as well as other genetic operators for these two problems are very efficient, and so is the responding program.

另外，本文针对指派问题和排序问题提出的PMX交叉算子以及设计的运行程序非常有效。

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Genetic algorithms ( GA) using ordinal strings must use special crossover operators such as PMX, CX and OX, which is very bother.

传统的序号编码遗传算法（GA）使用PMX、CX和OX等特殊的交叉算子，这些算子实施起来很麻烦。

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