查询词典 differentiation operator

Mutation rate at exon of GH in five bovine species was very low with the percentage of 3.48%. The majority of nucleotide substitution was nonsense mutation and only one missense mutation was observed. Molecule tree based on haplotypes of bGH at exon 5 showed that differentiation was apparent relatively between Bubalus bubalis and Bos taurus, Bos indicus, Bos grunniens, Bos frontalis. There was no apparent differentiation among other four bovine species and they shared mutual ancestral sequence.

序列分析表明，5个牛种GH基因外显子5的遗传变异水平较低，平均核苷酸变异率约为3.48%，而且绝大多数位点的核苷酸替换是同义突变，仅发现1个错义突变位点；从GH基因外显子5序列单倍型构建的分子进化树来看，水牛与普通牛、瘤牛、牦牛及大额牛的分化相对比较明显，其他4个牛种之间并无明显分化，还享有共同的祖先序列。

The amount of gibberellin was higher in the course of differentiation than multiplication period, which indicated its effect to facilitate differentiation.

赤霉素在分化过程的含量明显高于继代培养过程，可能对大葱愈伤组织的分化有促进作用。

Heteromorphism small, note the high degree of differentiation, atypia, and note the low level of differentiation.

异型性小，说明分化程度高，异型性大，说明分化程度低。

Automatic differentiation and implicit function differentiation rule were used to calculate the precise absolute and relative sensitivity coefficients, with no truncation error introduced.

提出一种基于自动微分和隐函数求导法则的精馏塔优化计算灵敏度分析方法，可以求出精确的、无截断误差的灵敏度系数，以反映精馏塔模型中各种不确定因素变化所引起的改变和影响。

Keywords distillation column semi-open equation model;automatic differentiation;sensitivity analysis;implicit function differentiation rule

精馏塔半开放模型；自动微分；灵敏度分析；隐函数求导法则

Objective In order to search for new tumor differentiation inducer, the effects of matrine of Chinese herbal origin on differentiation of K562 cells and its mechanism were studied.

目的 为寻找新的肿瘤细胞诱导分化剂，探讨了苦参碱对K562细胞的诱导分化作用及其机制。

Based on forecasting model, five algorithms are presented, that is, 1 algorithm for free motion of the plant when the analytical solution is available, 2 numerical differentiation algorithm, 3 improved numerical differentiation algorithm, 4 sensitivity matrix algorithm and 5 reference integral curve method.

推导了具有预测模型的算法的形成过程，指出了这种算法的物理实质，给出了基于预测模型算法的五种具体算法：1、系统自由运动有解析解时的算法；2、数值微分算法；3、改进的数值微分算法；4、灵敏度矩阵算法；5、基准积分曲线方法。

Differentiation of female flower is also separated into four periods, flower bud differentiation prophase, formation of inflorescences rachises, formation of involucrum, and development of gynoecium.

雌花芽分化分为分化初期、花序轴形成期、总苞形成期和雌蕊发育期4个时期。

This also resulted in differentiation as expected, but with differentiation patterns similar to those seen with the knockdown.

它同样也会造成预期中的细胞分化，并且分化的模式和基因抑制中观察到的类似。

Objective: The objective is to observe the expression of HOXC4 gene、HOXC6 gene on the differentiation and proliferation of hematopoietic stem cell to colony Colony Forming Unit-T Lymphocyte in vitro. And the differentiation progress affected by HCMV and/or ATRA, and to explore the possible mechanism of HCMV-induced maldevelopment to human cord blood T-Lymphocyte progenitor in genic level.

目的探讨人类脐血造血干细胞向淋巴系祖细胞增殖过程中HOXC4、HOXC6基因表达的情况，并且用人类巨细胞病毒和/或全反式维甲酸进行干扰，在基因水平探讨HCMV感染导致脐血淋巴系祖细胞损伤的机制。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。