势场

This method is a kind of open loop control method, but it doesn't cumulate errors, so can meet error requirements for the system.

本文分析了势场法和图搜索技术的某些特征，提出了改进的势场法对避碰路径规划问题进行了研究。

A front part of this paper is special potential function of diatomic molecules, and the other is atomic potential in a field.

本论文将分别就双原子分子特殊势能函数和激光场中的原子势场这两个方面的问题进行研究。

This thesis analyzes the energy eigenvalue and of the Harmonic oscillator with a one-dimensional δ-function, makes a comparative study of those of the one-dimensional harmonic oscillator, and analyzes the reason which causes their different quality and the different influences to the eigenvalue of the even parity energy and to the wave function when the number of the "Z" is different.

本文研究了一维δ势场中的谐振子的能量本征值及其本征波函数，并与一维谐振子的能量本征值和波函数进行了比较，分析了它们的性质不同的原因以及取不同势参数Z值时对偶宇称能量本征值和波函数的不同影响。

Especially it can find path between obstacles overlapped each other from the view of robot, which can't be realized by fuzzy plan, virtual force field or vector field histogram.

尤其是它能够发现前后重叠的障碍物之间的行走路径，这是模糊规划、虚拟势场、矢量场矩形法等方法无法实现的功能。

The results show that the emission probability behaviors in the non-degenerate two-photon mazer differ from those in the degenerate two-photon mazer,since two cavity modes are allowed in the mazer so that there are two freedoms changing the potentials that the atoms experience as they transit the cavity.

发现由于在微脉塞中存在两种腔场模式，导致有两个自由度来改变原子在经过腔场时所受到的势场，因此非简并双光子微脉塞的发射几率的行为不同于简并双光子情况下的发射几率。

Thirdly, according to the development of the frozen soil, the coupling model of single freezing pipe of axial symmetry of temperature field, stress field and moisture migration is put forward firstly. Then, by means of the progressing principle of potential field, the coupling model of temperature field, stress field and moisture migration which is under the condition of the multi-freezing pipes is extended. At last, the energy balance equation, stress balance equation, quality balance equation, geometric equation, physical equation, initial and boundary conditions etc are adopted to give the analytic solution to the problem of plane axial symmetry of single freezing pipe.

第三，在对室内试验和现场实测结果研究的基础上，分析了土体冻结过程中温度场、应力场、水分场耦合原理，并按照冻土体形成发展过程，首先建立了单一冷源冻结轴对称温度、应力、水分场耦合模型；接着利用势场的迭加原理，将单一冷源情况的三场耦合问题推广到多冷源情况的三场耦合；最后根据能量守恒平衡方程、应力平衡方程、质量守恒平衡方程、几何方程、物理方程、初始及边界条件，解出了单一冷源平面轴对称问题的解析解。

And the calculation results are compared with experiments. The importance of exchange potential in the scattering process is given for the first time.

首次提出了交换效应在散射过程中的重要性，并从计算结果得出了以下结论：光学势模型能够较好地描述激光场中原子势场。

Because the isogenetic electronmagnetic field and thermal field can interact with each other while the earthquake is generated and occurred, we propose that the thermal field can excite the semiconductor minerals to produce thermoelectric effects and a new additional thermoelectric field.

由于&孕震发震过程中存在同源电磁场和热场相互作用&，所以伴随孕震发震过程的热场变化可能激发半导体矿物产生热电效应，进而产生新的附加热电势场。

This paper firstly analyses the limitations of traditional potential field methods in dynamic environment,and based on this analysis,the traditional potential field is improved by introducing the concept of velocity potential field .

分析了传统势场法在动态环境下的不足，并在此基础上引入了速度势场的概念，改进了传统的势场函数，推导出新的引力函数和斥力函数。

In the VR interactive interface provided by the software, a GTAW arc geometrical 'model has been constructed in two-dimensional (2D) axisymmetry through main menu. Using PHOENICS code and developing it secondly, a series of subroutines has been programmed in the Ql file and GROUND file. Boundary conditions and special sources about temperature profile .velocity and potential profile have been loaded by these subroutines.

在软件所提供的交互界面VR(Visual Reality虚拟现实)里，通过主界面菜单操作实现了在二维柱坐标下对电弧几何模型的建立，对软件进行了二次开发，在Q1和GROUND文件中编译了子程序，处理了温度场、速度场和电势场的边界条件和源项。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。