势差

The contents comprise the classification and principle of molecular dynamics, the interatomic potential, the related finite difference technique, the choice of initial and boundary conditions, the realization and control of equilibrium ensembles, the extraction of useful information and some applications in the materials science.

综述了分子动力学模拟技术的发展，介绍了分子动力学的分类、基本原理、原子间势函数的发展及势参数的确定、相关有限差分算法、初始条件和边界条件的选取、平衡系综及其控制、感兴趣量的提取以及分子动力学模拟在材料科学中的一些应用。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed. Finally, the calculated figure was compared with the ideal paraboloid and comparison shows that more accuracy would be achieved by multi-electrode control.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

Used regression sum of squares to get the F-test statistic in order to test the random effect, the power of the test is increasing function of the test variance.

通过残差平方和构造了F检验统计量对是否有随机效应进行检验，并得出了检验的势函数是检验方差的增函数。

This article discusses the principle of molecular dynamics, interatomic potentials (for example, Lennard-Jones potential), some common finite difference algorithms, several molecular dynamics simulation ensembles , and the extraction of useful information.

介绍了分子动力学模拟的基本原理及常用的原子间相互作用势，如Lennard-Jones势；论述了几种常用的有限差分算法，如Verlet算法；说明了分子动力学模拟的几种系综及感兴趣的宏观统计量的提取。

Therefore we've arrived at the conclusion that TURP combined with orchiectomy and radiotherapy is an effective safe way for the elderly prostatic carcinoma patients especially for poor condition in heart and lung.

对於全身情况较差，特别心肺功能差的前列腺癌患者TURP+去势+放疗是一种安全有效的治疗方法之一。

Therefore we've arrived at the conclusion that TURP combined with orchiectomy and radiotherapy is an effective safe way for the elderly prostatic carcinoma patients especially for poor condition in heart and lung.

对于全身情况较差，特别心肺功能差的前列腺癌患者TURP 去势放疗是一种安全有效的治疗办法之一。

Therefore we've arrived at the conclusion that TURP combined with orchiectomy and radiotherapy is an effective safe way for the elderly prostatic carcinoma patients especially for poor condition in heart and lung.

对于全身情况较差，特别心肺功能差的前列腺癌患者TURP+去势+放疗是一种安全有效的治疗方法之一。

In addressing the heterogeneity factor, this paper will use Logistic regression, the Beta-binomial model the Williams method arid GLMM to analyze the secondary data collected at the incidence of Downy mildew on grapes and Phomopsis leaf blight on strawberrys. Also, there will he a thorough discussion on the advantages and disadvantages among the different model approaches according to -2 Res Log Likelihood, AIC, BIC and residual plots.

本研究旨在探讨病害发生率的研究中，以层次取样法进行抽样，并以实际资料葡萄露菌病和草莓叶枯病的病害发生率为例，藉由计算离势参数、-2 Res Log Likelihood、AIC、BIC和绘制残差图，比较逻辑斯回归、贝他－二项模式、威廉斯模式与广义线性混合模式四种模式对资料进行配适情形，来探讨这些方法克服过度离势的能力并比较其优劣。

The innovative and unique points are as follows. The method of magnetic potential self-balance is put forward applying the characteristic of iron core''s rectangular magnetization curve. The different of ampere-turn is measured by the reasonable design of reactor''s iron core. The feedback compensation system is a closed loop without high gain.

其创新、独特之处在于提出了利用铁芯矩形磁化曲线的特性，建立起直流磁势平衡的思想方法，并通过对电抗器铁芯结构的合理设计，巧妙地实现安匝差检测，构成差流回馈补偿系统，而不是高增益的闭环系统。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。