查询词典 hysteresis coefficient

Based on the Miedema model and Tanaka equation, a new method for calculating the parameters in the molecular interaction volume model has been developed to predict the activity coefficient s of multicomponent liquid alloys, in which not experimental data but only some physical properties of elements are required.

基于Miedema模型和Tanaka关系，提出了计算分子相互作用体积模型参数的新方法。该方法仅需知道元素的某些物理性质而无须熔体的实验数据，简化了计算多元合金熔体活度系数的步骤。分别计算了Ti-6Al-4V和Ti-5Al-2.5Sn在不同温度下组元活度系数的变化，计算了多种铜基合金以及Zn-Sn-Pb-Cd-Bi合金的活度或活度系数与组元配比的关系；并与Wilson模型进行了比较，计算值与实验值较好吻合

The correlation coefficient of retention time the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges and LUMO are more than 0.9957 using multiple linear regression.

用保留时间与分子的半径或分子的体积、分子的偶极矩、分子中总的Mülliken负电荷、分子的最低空轨道能量作多元回归分析，相关系数大於0.9957。

The viscosity and surface tension of lubricant have been qualitatively analyzed and predicted by means of partial least squares method and quantitatively calculated using artificial neural network with structural parameters as features. The structural parameters involved distribution coefficient, molecular volume. The qualitatively or quantitatively calculated results are in agreement with experimental results.

用分子碎片法计算表示润滑剂分子结构的体积参数、电负性参数、亲水－疏水性等参数，结合偏最小二乘法和人工神经网络方法对分子结构与表面张力和粘度之间的定量关系进行了计算及预报，结果与实验值符合较好。

On the basis of it, the cascade flow field with endwall suction, the effects of suction on the different endwall locations (such as near the leading-edge, in the middle of the passage or near the suction surface) on the development of secondary flow, the distributions of total pressure loss coefficient and yaw angle are investigated respectively.

本文首先采用三维稳态时均N—S方程组的有限体积差分法及压力修正算法数值求解技术对一直列透平静叶栅通道内流动的发展进行了模拟，利用文献中的实验结果验证了计算方法与程序的适用性。

Its main content including following several aspects: First, carry on the load computation according to the need coefficient method, and selects the method which the low-tension side centralism compensates to carry on the idle work compensation.

其主要内容包括以下几个方面：首先，按需要系数法进行负荷计算，并采用低压侧集中补偿的方式进行无功补偿。

K-means, and self-organizing map and the feature selection methods based on coefficient of variation and simple T-test were integrated. To evaluate the performance of the Samcluster system, the Samcluster was applied to four expression datasets COLON, LEUKEMIA72. LEUKEMIA38, and OVARIAN. The results show that there are only 5, 1,0, and 0 samples misclassified, respectively. We conclude that the proposed scheme. SamCluster. is an efficient method for automatic discovery of sample classes using gene expression profile.

在Samcluster系统中，整合了下列聚类算法：谱系聚类、K-平均值聚类和自组图聚类与变异系数计算和T-检验等基因变量选择方法，并提出了一致的样本分型概念，通过对四个基因表达谱的数据集COLON、LEUKEMIA72、LEUKEMIA38和OVARIAN的测试，结果表明：误判的样本数分别为5、1、0和0个，因此，基因水平的样本分型与样本的临床分型高度一致。

A new three-detector litho logy density tool appears. It can correct the influence of thin beds and obtain photoelectric absorption coefficient of formations more exactly.

於是，出现了一种三探测器岩性密度测井仪器，这种仪器可以对薄层进行校正并能更准确地求取地层的光电吸收截面系数。

The uncertainty in measured convective heat-transfer coefficient on lifting body model was about 15%.

涂层热图技术，是把某些示温材料，薄薄地喷涂在模型表面，试验时，通过记录模型表面涂层

According to MB model and calculation nomenclatures previously proposed, the contact behavior of two elastoplastic contact rough surfaces and the interfacial static friction coefficient were studied.

根据MB模型和提出的计算术语，对两弹塑性接触粗糙表面的接触行为及界面的静摩擦因数进行了研究。

Air pressure distribution on sur-face of train(3 cars)and aerodynamic drag coefficient are obtained with sim-plified bogies and pantographs in calculations. Computational results are alsocompared with those given by model test in wind-tunnel.

计算中对转向架和受电弓处作了简化处理，得到了三车编组情况下列车表面压力分布及气动阻力系数，并与列车模型风洞实验结果进行了对比。

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。