势能

A universal analytic potential energy function is derived using the cosine function with a phase factor,which is suitable to be applied to the interactions between two atoms in a molecule or molecule and ion.5 kinds of common potential curves are obtained by adjusting phase factors.

利用一种带相位因子的余弦函数，导出了适用于双原子分子或分子离子间相互作用的普适性解析势能函数，通过调节相位因子可获得5种常见形态的势能曲线。

On the system, the time-dependent quantum dynamic calculations were conducted and provide the reasonable results including the reaction probability, the total scattering cross section and the rate constant, which were in well agreement with the related experimental data.

本文的创新点主要表现在以下方面：(1)提高了本体系依据的从头算数据的计算水平，纠正了以前势能面中发现的一些缺陷，构建了能够进行全局量子计算的全维势能面。

All these phenomena indicate that 9-parameter Murrell-Sorbie analytical potential energy function can truly describe especial potential energy curve of diatomic molecule.

这也从侧面放映出该势能函数能够正确表示双原子分子的特殊势能曲线。

The equilibrium geometries and disassociation energies also have been determined.

通过Murrell-Sorbie势能函数和最小二乘法拟合得到了解析势能函数。

Based on the double integrator model,a control strategy is designed by using potential function which is proposed from the perspective of electric potential.

在二次积分模型的基础上，采用了采用了势能函数进行控制设计，该势能函数是基于电势场的概念提出的。

Discussion is made on the electrostatics that electric field consists of the current power and mutual power in electriferous system.

阐述了静电学中电势能应包含带电体系的自能和互能，电势能和电场能虽然在量值上是等价的，但二者的物理含义是不同的。

Hence, the loss of gravitational potential energy of the block equals the gain of elastic potential energy of the spring.

因此，该物块的重力势能的减少，等于该弹簧的弹性势能的增加。

This section tells about gravitational potential energy and its relativity, the change of gravitational potential energy and the relation that do work with gravity.

本节讲述重力势能及其相对性，重力势能的变化以及和重力做功的关系。

The coupling effect between elastic deformation and the rigid motion was concerned in the dynamic equations. At the same time, the flexible manipulators were assumed as Euler-Bernoulli beams, the elastic deformation of the manipulator was represented by modality truncation equations, both elastic and gravitational potential energy were considered to calculate the total energy for whole system, therefore the finial dynamic modeling is more accurate and simple than others published.

该方法考虑了柔性机械臂刚体运动和弹性变形之间的耦合影响，并将柔性机械臂假设为一段Euler-Bernoulli梁处理，将弹性变形用截断模态方程表示，同时考虑了弹性势能和重力势能的影响，得到的双连杆柔性机械臂的动力学模型具有模型准确、结构简单等特点。

B.In simple harmonic motion,where there is no damping,the energy of the vibrating patticle

在没有阻力的简谐运动中，振动质点的能量由动能变为势能，或由势能变为动能，但总能量不变。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。