势的

A generalized mathematical model was developed to describe the distribution of over-potential.Dimensionless variables μ and ω that characterize the polarization and influence of side electrode reaction in the system,were derived from modeling.Adomian's decomposition methodADM）was used to solve the nonlinear differential equation of the model to obtain an approximate analytical solution,which was in the form of algebraic expressions of infinite power series.By the solution,the relationship between over-potential distribution and average selectivity could be easily calculated without solving the nonlinear model time and again.

建立了描述超电势分布的普遍化数学模型，归纳出表征电极极化和副反应影响的量纲1数μ和ω，并用ADM（Adomian's decomposition method）对该非线性微分方程模型求解；所获得的逼近解代数表达式，可方便地计算不同参数下超电势分布对平均选择性的影响，而毋需反复求解模型微分方程。

In this paper, the change of back electromotive force current with the different PWM modes are analyzed in detail on the base of BLDCM model. According to theory and experiment ,ON-PWM type restrains the peak value of back electromotive force current and brings the lest effect to the motor control system.

基于无刷直流电动机的数学模型，分析比较了不同PWM调制方式下反电势电流的变化规律，并通过理论推导和仿真实验证明了当电机系统采用ON-PWM调制方式时，能有效地抑制反电势电流的峰值且对电机控制系统造成的影响最小。

Finally, a calculation example of Bingham oil was shown the numerical difference of the two methods.

本文以Bingham流体为例，对非牛顿流体的差分方法进行了研究，从理论上分析了势梯度分量差分方法的错误，并提出了正确的势梯度模差分方法，最后给出了显示二种方法差别的数值计算实例。

Our algorithm not only can solve the problems such as computability of discrepancy, the special status of the origin and etc.

根据均匀性度量应满足的基本条件，根据物理学的势和力的概念，提出了均匀性度量的势函数模型。

This paper mainly discuss some analytic and numerical results for one-dimensional SU(2) and SU(3) bosons in periodic boundary condition and in hard well boundary condition by using the Bethe Ansatz method.

本文主要讨论的是通过Bethe Ansatz 来得到一维SU(2)和SU(3)玻色子在周期势和在无限深势阱中的_ 相互作用的一些解析和数值结果。

And we give the effects of the barrier height on fractional dimension, exciton ground energy and binding energy.

另外，非对称方势阱中的激子结合能随阱宽的减小而增大，且随一侧势垒的增大而增大。

Based on the hydroelastic response theory, the motions of the VLFS are analyzed in the dissertation, and then the velocity potential of fluid and the velocity potential of deflection wave of VLFS are solved.

本文在水弹性响应理论的基础上对超大型浮体结构的运动进行了分析，并求解出流体的速度势和浮体挠曲波速度势。

When the reconstructed wind approachs the original one, it means the partitioning process is successful and the calculated stream function and velocity potential is accurate.

目前，对风场进行有效分解的方法是对有限区域里的流函数和速度势进行求解，然后对流函数和速度势求导得到对应的无辐散风与无旋转风。

According to the theory that the shape of seal rock control petroleum to migrate along with ridge, ray-tracing technique is adopted to forward hydrocarbon migration pathway. This technique advanced fluid potential by combining source sag and energy field.

东部凹陷中段为一常温常压盆地，运用流体势分析油气运聚意义不大，根据封闭面底部形态控制油气脊运移原理，本次研究采用射线追踪技术正演油气运聚路径，该技术基于油气二次运移的相对能量行为进行油气运移路径的三维分析，将生烃凹陷与能量场结合起来，是对流体势分析技术的重要改进。

Water potential may be defined as the chemical potential of water in a biological system compared to the chemical potential of pure water at the same temperature and pressure.

可以将水势定义为生物体系中的水的化学势，区别于纯水在相同温度和压力下具有的化学势。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。