查询词典 coefficient of variation

The conclusions based on the above research and analysis were: space mutation brought not only variation of agronomist characteristics of rice, but also variation of resistance to blasts, and the variation was able to become genetic stable.

上述研究结果表明：空间诱变不但能够使水稻农艺性状产生变异，而且能够使抗性产生变异，同时这种变异能够稳定的遗传下来。

It is found that:(1) the variation of dFM may lead to two different features for the IEC,one is the oscillatory behavior of IEC with the spacer thickness,the other is the exponential behavior in the most spacer thickness.(2)As a oscillatory function of dFM ,the IEC exhibits multiple periods and a negative non-oscillatory term.(3)The Fermi energy of the conduction electrons has a little variation as the magnetization of the two FMs changes from parallel to antiparallel alignment,furthermore,this variation is correlated with the IEC to some extent.

结果发现：（1）dFM的变化会导致层间交换耦合出现两种不同的特征，一种是随着中间层厚度的增加，IEC有振荡行为；另一种是其指数衰减行为；（2）作为dFM的振荡函数，IEC表现出多个周期和一个负的非振荡项；（3）传导电子的费密能会随着两铁磁体的磁化排列变化而稍有变化，进一步地，这种变化与IEC有着某种程度的关联。

The percentage of Cyanide, phenol, mercury and chromium which have little effect on water quality is small and the variation tendency is slow. The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great. The percentage of DO, BOD5, petrochemical compounds and lead lies in the mean place between two guidelines above, which plays a normal role in contributing to the water quality of Yuehai, but the variation tendency is obvious.

选取了15个参数作为评价因素，其中，氰化物、挥发酚、汞、六价铬等指标的权重较小，对水质变化的总体影响不大，并且年度变化趋势较平缓；氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；DO、BOD5、石油类、铅等指标的权重介于上述指标的中间。

In chapter three, we prove that there exist solutions to the Ky Fan variation inequality, as the set-valued mappings are defined on spheres in infinite dimensional Banach spaces or odd dimensional Euclidean spaces, following from these theorems, we obtain some fixed point theorems for set-valued mappings defined on a sphere. When G is an approximate compact convex subset of E, or G is a almost quasi-convex set-valued mapping, we prove that there exist solutions to and type generalized Ky Fan variation inequality, following these theorems, we prove several best approximation theorems and coincidence theorems involving two set-valued mappings and two different spaces. In chapter four, we first present a new Simplicial algorithm for computing the Leray - Schauder fixed points, the algorithm can solve the set-valued nonlinear complementarily problem. We give a condition to guarantee the computation proceeding in a bounded region. We present integer-labeling algorithms for computing fixed points of some set-valued mappings, the best approximation points and solutions to a kind of set-valued variation inequalities.

第四章给出了计算定义在非凸集上的非自映射的Leray-Schauder不动点的算法，而现有的不动点算法都是计算凸集的上半连续集值自映射的不动点；给出了保证计算有界的一个充分条件，我们的条件大大弱于Mdrrill条件，我们的算法也可用来计算Eaves不动点；给出了集值非线性互补问题存在解的一个充分条件，此时可利用Leray-Schauder不动点算法来求解；向量标号算法以往是计算集值映射不动点的唯一有效算法，我们给出用整数标号算法计算一类集值映射的Kakutani 不动点的算法；定义在紧凸集上的连续映射不一定有不动点，但一定有最近点，最近点是不动点概念的推广，我们给出了计算最近点的算法；集值映射变分不等式尚无有效的求解算法，我们给出求解一类集值映射变分不等式的算法。

The result shows that: The variation rhythm of the sensitivity index changed unanimously for Jensen,Blank and Stewart water production functions of spring wheat in Liangzhou city,the volume is small in the former stage,then become large at the middle stage,and less at the last stage. Jensen and Stewart water production functions are better of spring wheat in Gulang County in 1987-1989. The Variation rhythm of water deficiency sensitive index is unanimous: the volume are small at first,then large at middle,and diminish at last. The Variation rhythm of water deficiency sensitive index is unanimous in Jensen,Blank and Minhas of flax in Liangzhou county in 1987-1989. The water deficiency sensitive index in Gulang district in 1987-1989 models bad,are too many minus.

结果表明：1985-1986 年凉州春小麦Jensen 模型、Blank 模型和Stewart 模型的敏感指数变化规律接近一致，在前期较小，中期增大，最后再减小。1987-1989 年古浪春小麦水分生产函数以Jensen 模型和Stewart 模型拟合较好，其敏感指数变化规律比较一致，敏感指标值前期较小，中期增大，后期又减小。1983-1985 年凉州亚麻水分生产函数以Jensen 模型、Blank 模型和Minhas 模型敏感指标值变化规律比较一致：先减小，后增大，最后再减小。1987-1989 古浪亚麻敏感指数出现负值较多，模型拟合较差。

The result shows that: The variation rhythm of the sensitivity index changed unanimously for Jensen,Blank and Stewart water production functions of spring wheat in Liangzhou city,the volume is small in the former stage,then become large at the middle stage,and less at the last stage. Jensen and Stewart water production functions are better of spring wheat in Gulang County in 1987-1989. The Variation rhythm of water deficiency sensitive index is unanimous: the volume are small at first,then large at middle,and diminish at last. The Variation rhythm of water deficiency sensitive index is unanimous in Jensen,Blank and Minhas of flax in Liangzhou county in 1987-1989. The water deficiency sensitive index in Gulang district in 1987-1989 models bad,are too many minus. 3 Establishing the non-linear model to definitive the irrigation quota and dimension of single crop,according the three prototype Precipitation,allocating the limited water optimally according to full water supply,95 percent,75 percent and 50 percent. Economy benefit is the biggest aim function,so getting three groups for irrigation quota,irrigation dimension and benefit,the biggest benefit is the most optimal result.

结果表明：1985-1986 年凉州春小麦Jensen 模型、Bl(来源：10a1ABC论文网www.abclunwen.com)ank 模型和Stewart 模型的敏感指数变化规律接近一致，在前期较小，中期增大，最后再减小。1987-1989 年古浪春小麦水分生产函数以Jensen 模型和Stewart 模型拟合较好，其敏感指数变化规律比较一致，敏感指标值前期较小，中期增大，后期又减小。1983-1985 年凉州亚麻水分生产函数以Jensen 模型、Blank 模型和Minhas 模型敏感指标值变化规律比较一致：先减小，后增大，最后再减小。1987-1989 古浪亚麻敏感指数出现负值较多，模型拟合较差。3 建立单作物种植条件下灌溉定额与灌溉面积的确定的非线性规划模型，将有限的水量按照充分供水，95%、75%和50%供水来分配水资源，以经济效益最大为目标函数，得出三组灌区灌溉面积和效益结果，其中以效益最大为最优解。

The result of frequency response analysis shows that when the modulation frequency of incident radiation increases, the phenomenon that the response of detector lagging behind the variation of radiation becomes evident, the temperature variation range in pyroelectric thin film decreases, but the variation velocity increases, so the current resulting from pyroelectric effect increases.

频率响应分析表明：随着入射辐射调制频率的增大，可以观察到探测器响应的滞后现象越来越明显，热释电薄膜中的温度变化范围减小，但变化速率增大，因此探测器的热释电电流增大。

One-dimensional time domain helicopter-borne electromagnetic responses are computed using G-S transform and Gauss numerical integral. The variation of electromagnetic responses due to bird height is analyzed, and then the variation of bird height is transformed to the variation of pseudo-layer thickness of zero conductivity to eliminate the error of the altimeter.

采用G-S变换以及高斯数值积分法，形成了时间域直升机的航空电磁响应正演样本集，分析了飞机测量过程中吊舱高度变化对电磁响应的影响，并将吊舱高度的变化等效成电导率为零的假层厚度的变化，以去除高度计等的影响。

Ecological analysis of morphological and genetic variation revealed that:(1) The averages of morphological characters were significantly negatively correlated with WSF (2) Dominant frequencies of some RAPD loci were significantly correlated with WSF (3) The correlation between morphological variation and genetic variation was not significant (4) The cluster analysis based on morphological and genetic evidence supported that all population can be divided into three ecotypes: saltmarsh reed, freshwater reed and giant reed.

相关分析表明：种群内各形态特征的平均值均与水盐联合影响因子显著负相关，但种群内形态变异系数与水盐联合影响因子普遍相关不显著；种群遗传多样性指数与水盐联合影响因子相关不显著，但部分生境倾向型的RAPD位点的显性频率和来自等位酶分析的克隆多样性水平与水盐联合影响因子显著相关；形态变异系数与遗传多样性指数相关不显著，但相关系数均为正值。

The second variation type is called reversion evolution type, which represents the liquid segregation mainly with vapour-liquid fractional distillation. The third variation type is called saltatory variation type, which is formed from the liquid segregation mainly with immiscibility.

称为正向演化类型，是结晶分异结果；②称为反向演化类型，代表气液分馏为主的液态分离；③称为演化突变类型，是不混溶为主的液态分离形成。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。