下势
- 网络pushing down
![下势](../cache/1621393.jpg)
-
库仑规范下势的瞬时性
Probe into Potential Instantaneity in the Coulomb Standard
-
根据潜水层完整井流公式,推导不同流态下势函数与水力压头的关系式,并建立各自的势函数积分表达式。
According to the formula of fully penetrating well in free-water layer , the relation between potential function and water head was derived in different states , and those integral expressions of potential function were presented .
-
分析推导了波在无耗散情况下的势矢量方程和3种体波的速度表达式以及具有耗散情形的势矢量的普遍方程式和P波与S波的衰减系数。
The potential vector equation and the velocity expression of three kinds of body waves under the conditions of no dissipation , as well as the general equation of potential vector and the attenuation coefficients of P wave and S wave under the conditions of dissipation are deduced .
-
其次,由性能势Poisson方程以及样本轨道定义出发,可以建立折扣和平均准则下性能势基于强化学习方法的统一逼近公式。
Second , by the definition of potentials based on Poisson equation and sample path , the uniform approximation formula of potentials can be obtained with the discounted and average criteria by reinforcement learning .
-
对于Dirac算子,在相应的边值条件下,势函数满足一定的条件,同时给出一定数量的谱数据,应用Weyl函数的方法,便能唯一确定势函数,从而确定Dirac系统。
For the Dirac operators , given a certain amount of eigenvalues , we can uniquely determine the potential functions applying the Weyl function method under the corresponding boundary conditions and the potential functions . At the same time , the Dirac system will be determined .
-
在这种情况下,势位能就转化成动能。
In the circumstances the potential energy turns to kinetic energy .
-
轴对称情况下的势问题分析
The potential problem 's method of analysis in axial symmetry
-
平面应变情况下多重势面模型与邓肯-张模型的比较
The comparison between multi-potential surface model and duncan-chang 's model in plain-strain cases
-
动态环境下基于势场原理的避障方法
Potential field-based obstacle avoidance algorithm for dynamic environment
-
光场作用下双势阱中隧道效应淬灭以及相位相干作用的研究
Quenching of tunneling and role of phase coherent in a double-well using laser fields
-
得出了在1500℃下电动势与硫含量的实验关系。
A relationship between EMF of cells and sulphur content is thus obtained at 1 500 ℃ from experiments .
-
静电场作用下双势阱分子隧道效应的猝灭及能级裂距的非线性特性研究
The study on quenching of the tunneling and nonlinear characteristic of energy splitting in double-well molecules with dc electric fields
-
供应链管理作为在全球经济一体化背景下应势而生的一种集成化管理模式,在各个领域得到广泛应用。
The Supply Chain Management is in extensive use in every field as an integrated mold in the background of globalization .
-
都市经济区是在国家战略需求的推动下应势而生的新概念,已经广泛应用于全国国土规划和主体功能区划。
Based on the new national land planning and national major function oriented zoning , the concept of the extended metropolitan region has been suggested .
-
在这种情况下,势位能就转化成动能。既然他能控制他的感情,她也决不作感情的奴隶。
In the circumstances the potential energy turns to kinetic energy . If he could so command his affections , her 's should do her no harm .
-
对弱外光场条件下修饰势的引入进行分析、推导,得到仅当自由电子的颤动半径小于原子尺度时,才能引入分数形式修饰势的结论。
Through the introduction of the coulomb dressed potential in weak laser field , it is analysed and deduced that only when the quiver radius of the free electron is smaller than atomic scale , the conclusion of introducing fractional dressed potential can be true .
-
在能量公设的基础上,证明了在外场作用下化学势不仅与温度、压强及各组分的摩尔质量有关,还与外场的特征参数有关,导出了外场作用下化学势的普遍化表达式。
Based on the energy postulate , the generalized expression of chemical potential with external fields was derived , which shows that chemical potential not only depends on temperature , pressure and molar mass of the component , but also is affected by the characteristic parameters of the external fields .
-
为此,我们导出了磁场中Dirac方程的解并列出了磁场中系统在零温下巨热力学势的解析解。
We solve the Dirac function with magnetic field and deduce the thermodynamic potential of the magnetic system .
-
计算中使用广义梯度近似(GGA)下的PAW势。
The generalized gradient approximation ( GGA ) was used with the PAW potential .
-
将计算所得静电势值投影到电子密度等值面和分子形貌轮廓上,用MATLAB软件绘制静电势分布图,并比较两种方法下的静电势分布图。
Projecting the results onto the electronic density isosurface and the molecular face contour . The software MATLAB was used to draw the distribution map of electrostatic potential of two method and compared them .
-
证明了在球极坐标下,哈特曼势在维度r和维度θ都具有超对称性和形不变性,从而求得此势的能量本征值和能量本征函数。
This article shows that in spherical polar coordinates , the Hartmann potential has supersymmetry and shape invariance in the r dimension and in the θ dimension , and thus it obtains the energy eigenvalues and energy eigenfunctions of this potential .
-
本文基于Thomas-Fermi模型,提出外势场与原子内势场的作用,确定外势场对体系势场边界条件的影响,建立外电场作用下的原子势场外边界条件。
Based on Thomas-Fermi model , the effect of external electric field on inner boundary potential was studied and the new atomic potential boundary condition was established .
-
基于Thomas-Fermi模型,推导出单原子熵的计算方法,并建立了电场作用下的内势场的边界条件。
Based on Thomas-Fermi model , the calculation methods of the monatomic entropy were driven out . The interior potential boundary condition under the electric field has been defined .
-
在理论上,基于Thomas-Fermi理论,重点研究了电场作用对原子体系的内势场边界的影响,建立了外场作用下的原子势场外边界条件,并计算原子能量和压强;
Based on Thomas-Fermi theory , the effect of external electric field on atomic inner boundary potential was studied . The new atomic potential boundary condition with the influence of external electric field was established and the atomic energy and pressure were calculated with new boundary condition .
-
多个白噪声驱动下一维周期势中粒子的迁移率
The Mobility of Particles Driven by White Noises in One-Dimensional Periodic Potential
-
跨文化交际视野下的身势语功能及文化差异
The Communicative Functions and Cultural Differences of Body Language in Intercultural Communication
-
一维半导体在外场作用下的内势场数值解
Numberical solution of one dimension semiconductor with external field
-
半无限及含孔无限平面在各种边界条件下的复位势基本解
Complex Fundamental Solutions for Semi_Infinite Plane and Infinite Plane with Hole under Various Boundary Conditions
-
我们先写下,化学势相等的等式。
So let 's start by writing the chemical potentials being equal to each other .
-
给出了确定半空间无限体中土单元在自重下的膨胀势的关系式。
Relationships to determine swelling potential of soil element in half-space under self weight are presented .