查询词典 indefinite total variation

The differentiation coefficient is 0.07 between three inbreed families respectively. The highest level of genetic homozygosity is in families Ⅱ at 18, but genetic variation is a little difference between inbreeding pig and mice. However, this study revealed the pattern of genetic variation at microsatellite loci in the 3 inbred families of WZSP with one of the most important findings to be the high level of unexpected heterozygosity at some loci, e.g. Sw874 and Sw936 that could be part of the unique genetics of three families. A hypothesis is that certain functional genes linked with such microsatellite loci may be involved in the maintenance of viability of these inbred families of WZSP remains for further investigation.

随近交代数的推进，每个星座上等位基因数越来越少，基因的纯合度越来越高，但WZSP近交系微卫星等位基因的纯合度有一定的限度，与近交鼠有所不同；在近交系3个家系各个世代中有少数几个基因座，如Sw874和Sw936等一直处于高度杂合状态，这可能与WZSP近交家系的种质特异性有关，推测与这些基因座处于同一连锁群的某些功能基因在维持极高近交水平下WZSP的基本生存能力中起着关键作用。3个近交群体间的分化系数在0.07以上，已各自成为独立家系；3个家系的近交程度不完全一致，基因的纯合度亦不同，Ⅱ系最高、14个微卫星座中7个纯合，其次为Ⅰ系和Ⅲ系。

The model tests and numerical simulation are adopted to study the variation of stress characteristics at the end of anchor cables and the axial strain of anchorage segments under explosive waves induced by the centralized charge. The variation laws of two types of anchor cables are introduced, and some valuable conclusions are drawn.

通过模型试验和数值分析，研究了在集中装药产生的爆炸波作用下两种类型预应力锚索的索端张力变化特征和锚索锚固段轴应变变化波形，探讨了两种锚索类型的预应力变化特征和规律，并得出几点有意义的结论。

Through experimental researches, a result is obtained, which is that the periodic variation of water injectivity index is consistent with the periodic variation of injection water quantity in Shengtuo oilfield.

通过试验研究，得出胜坨油田吸水指数的阶段性变化与注水水质的阶段性变化一致的规律。

Cronbach'sα coefficients for internal consistence ranged from 0.74 to 0.97. The interclass correlation coefficients ranged from 0.73 to 0.99 for intra-observer variation, and from 0.48 to 0.70 for inter-observer variation.

内部一致性信度的数值在各范畴中高巴氏α(Cronbach'sα)值皆大於0.7；再测信度中，内在等级相关系数(Intraclass correlation coefficients)值皆大於0.45。

Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.

通过一系列普通电火花加工与混粉电火花加工的对比实验，运用工艺实验和理论分析相结合的方法，重点做了以下工作：(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因，并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理；(2)以混合硅粉的电火花加工为例，实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律，并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据；(3)在实际加工中，由于粉末的加入使放电间隙变大，这使得混粉电火花加工的尺寸精度难以控制，本文利用三元线性回归的方法，在实验数据的基础上，建立了两种电火花加工过切量的计算公式；(4)将正交试验法应用于混粉电火花加工实验研究，并通过对实验指标极差的直观分析，得出各电参数对加工指标影响的敏感程度。

Genetic variation that alters the structure, configuration, or quantity of any of the proteins involved in any of these mechanisms may contribute to interindividual variation in drug response.

在这些机制中不可或缺的包含有某些特定蛋白的作用，个体间基因的差异会对这些蛋白的量、结构及构型等产生一定的影响，进而影响药物的疗效。

OBJECTIVE: We assessed the extent of intra- and interindividual variation in normal human metabolic profiles and investigated the effect of standardizing diet on reducing variation.

目的：评估正常人们代谢形式内在的和个体差异的程度，调查标准饮食对减少变化的影响。

Although a wide range of interindividual variation in human plasma β2-GPI concentrations has been found, little determinant of β2-GPI variation has been studied.

虽然人类血液中β2－醣蛋白I 的浓度随著个体间不同而有大范围之差异已被发现，但是对於β2－醣蛋白I 差异表现之决定因素却所知甚少。

The fourth part probes into the dynamic transformation mechanism of non-interruptive conversational unit transformation and interruptive conversationalunit transfermation, proposing a mode of information variation during the process of non-interruptive-conversational unit dynamic transfermation and a timing mode of conversational unit transfermaiton. The mode of information variation is then applied to discourse structure analysis and analysis of the types of conversational unit transfermation and non-interruptive conversational unit transfermation with the conversation of two or more persons concerned.

第四部分就非打断性话元转换和打断性话元转换的动态转换机制进行了研究，构拟了非打断性话元动态转换的信息变化模型和话元转换的时间模型，将信息变化模型运用到篇章结构分析中，并就二人和多人会话情况下非打断性话元转换和打断性话元转换的类型进行了分析。

A major difficulty in using existing ethnographic data to test DIT is that, due to cultural anthropology's assumption of culture as a superorganic entity, ethnographic data tends to ignore individual and intragroup cultural variation and focus almost entirely on intergroup variation.

利用现有的实地观察数据来测试双继承理论的一个主要困难是，由于文化人类学将文化设定为超个体的实体，实地观察数据倾向于忽略个体的或群组内的文化差异，而完全聚焦于群组间的差异。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。