查询词典 bud mutation

Also known as winter clothing jacket bud bud is the end of autumn from the previous year with lower rhizome bud germination site, as the winter after the leaves dry down, break the shape of clothes, they are named.

褛衣芽又称过冬芽，是前年秋末从地下茎较低部位萌发的芽，由于冬后叶片干枯下垂，形似破衣衫，故而得名。

Process of strawbeery flower bud differentiation can be divided into six stages, through observation of dissection and terminal bud shape. Strawbeng flower bud differentiation is processed in short-day condations below 12 hours.

通过对顶芽形态解剖观察结果表明，草莓花芽分化的进程，可分为六个阶段，其分化是在12小时以下的短日照条件下进行的，最适温度为12～20℃，平均温度为15.3℃，临界温度为5—26℃，5℃以下停止分化，26℃以上花芽不能形成。

Juglans regia L.; grafting ; single bud green branch grafting ;工 bud grafting and shield bud grafting

核桃；嫁接技术；单芽绿枝接；&工&形芽接和嵌芽接

It includes as follows:(1) That the right acceptance probability to decide the initial value temperature should be 0.6 are presented by experiment. For the first time, crossover and mutation operator are used in populations to calculate the initial value of temperature. At least the initial value of temperature is 〓.(2) Replacing random change operator with crossover and mutation operators.

2使用遗传算法中交配与突变代替模拟退火算法中随机扰动操作，对两种操作方法进行定性分析，得到突变和交配操作与随机扰动方法在本质上的一致性；同时首次提出在不同温度条件下，使用不同的比例因子，控制参与交配与突变的基因位数，实现了二次使用模拟退火算法的过程。

Among Ashkenazi Jewish subjects, either mutation was found in 15% of patients and 3% of controls, and among non–Ashkenazi Jewish subjects, either mutation was found in 3% of patients and less than 1% of controls.

在北欧犹太族的受试者中，15%的患者和3%的对照组发现变异，而在非北欧犹太族受试者中，3%的患者和少于1%的对照组发现变异。

We studied the optimizaiton, accuracy and reliability of this technique by definition the genotype of five common mutation loci of β-globin gene in the carrier with CD41-42 mutation and that of β-globin gene of normal people's single lymphocyte and single blastomere.

我们采用了一种利用单细胞标本通过二重巢式PCR并结合ARMS技术确定中国人群中广泛的β-地中海贫血突变谱的基因型的策略，通过对含有β-珠蛋白基因CD41-42突变的携带者5个该基因常见突变位点基因型的确定，以及正常人的单个淋巴细胞、单卵裂球的β-珠蛋白基因该5个位点基因型的确定，对这种技术条件的优化、准确性和可靠性进行了研究。

A new particle swarm optimization, PSO with bounded mutation operator, was developed. In contrast to the original PSO, in this algorithm, PSO with bounded mutation operator would make the particles redistributed cquably close to boundary when place of particle exceeds feasible region during iteration.

提出了一种新的粒子群优化算法——带边界变异的PSO，其原理是：在迭代的过程中，当粒子的位置超出可行域时，带边界变异的PSO让粒子的位置重新均匀分布在边界附近；当粒子的速度超出可行域时，则使其均匀分布到整个可行区间，而不是像原始PS0那样在这2种情况下都只是简单地取边界值。

To quicken the calculation speed of genetic algorithm, the chiasma operation and mutation operation are improved; based on the thinking of inheritable character, the destruction of fine gene combination during chiasma operation is prevented; drawing lessons from the thinking of modifying individual speed and position in the light of individual extremum and global extremum in particle swarm optimization algorithm, an evolutional mutation method based on gene character is put forward.

为提高遗传算法的计算速度，对交叉和变异操作进行了改进：基于遗传性状的思想，防止了交叉操作中对优良基因组合的破坏；借鉴粒子群算法中根据个体极值和全局极值修正个体速度和位置的思想，提出了根据基因性状进行进化变异的方法。

To overcome the premature of simple genetic algorithm, the calculating efficiency of SGA is improved by the following two ways; Firstly, in order to ensure convergence of algorithm and reduce influence factor of convergence, elitist selection and adapted crossover and mutation operator are adopted. Secondly, because this study deals with finding minimize volume of structure, to quicken convergence of this problem, in line with mechanics criterion the paper carry out mutation to some genes in chromosome according to variations of internal force. This will let algorithms to search answer with our hoping directions.

针对基本遗传算法存在早熟的问题，本文主要从两个方面进行了改进，首先为了保证算法的收敛和减少影响算法收敛因素，采用了最优保护策略和自适应的交叉和变异算子；其次，由于本文研究内容涉及求结构最小体积问题，为了加快此类问题的收敛速度，本文结合结构优化中的力学准则，对个体染色体中的某一段基因按照内力变化进行变异操作，使得算法按一定方向进行搜索最优解。

The linear convex combination,subtle mutation and violent mutation,and ES-

遗传算子采用线性凸组合的杂交方式、强弱两种变异方式以及进化

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。