查询词典 potential theory

Mapping topological current theory,the decomposition of gauge potential and its application

中文题名φ-映射拓扑流理论，规范势分解及其应用

According to the theory, the industry competitive field isa vector field, which has potential energy and momentum.

文中认为产业竞争场是一个矢量场，可分为外场和内场，并对场内各种矢量的指向进行了分析，揭示了竞争场上变量的流动机制，清晰地显示了弱势产业的变量特征，进而梳理了调整有关变量的思路和战略方法。

When vector sensor processing techniques have shown many advantages than pressure after more than ten years of rapid development, it is necessary to do more fundermental researches on physics and signal theory to explore the potential of vector hydrophone more specifically and effectively.

矢量水听器信号处理技术经过十几年快速发展，展示出相比于声压信号处理技术的优点后，它在物理和信号理论方面需要更深入的基础研究，以更明确、更好地挖掘其内在的潜力。

By estimates of the spectral gap, Sobolev inequality and the weak convergence theory of stochastic process, we obtain that the annealing process converges in probability to a neighbourhood of the global minimal set of the potential function.

利用谱隙估计和Sobolev不等式方法以及随机过程的弱收敛理论我们得到这种退火过程依概率收敛到势函数的全局最小点附近。

With the development of science and technology, one has to develop new materials and to explore potential of material properties. This paper presents the development of the elasticity theory with different Young's modulus in tension and compression.

随着科学技术的日益发展，对材料力学性质的研究提出了更高的要求，研制新型的材料以及挖掘材料自身特性的潜力，已成为新的研究动向。

We have calculated the electronic structure and optical properties of zinc blende structure ZnSe under different high pressure by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.The total energy,density of state,energy band structure,and optical absorption and reflection properties under high pressure are calculated.Furthermore,we analyzed the change of electron structure,band structure and optical properties under high pressure using the results of experiment and theory

运用密度泛函理论体系下的平面波赝势和广义梯度近似方法，利用第一性原理计算了不同的压强下ZnSe晶体闪锌矿结构，得到了它的平衡晶格常数、总能量、电子态密度分布、能带结构、光反射与吸收系数等性质，具体讨论了高压下ZnSe的电子结构，并且结合实验结果定性地分析了高压下的光学性质。

In theory, firstly, the numerical simulation methods, such as the boundary element method, the finite difference method and the finite element method, were utilized to calculate the distribution of electric field intensity and potential of the electron-gun system, the focusing system and the whole equipment, respectively. Then, the trajectories of the electron-beam were traced by using of the Runge-Kutta method and the Monte-Carlo method associatively. The point spread function was also calculated.

在理论分析中，先后采用边界元方法、差分方法、有限元方法等科学数值计算方法，编制程序，对X射线源的电子枪发射系统、聚焦系统以及发射系统与聚焦系统的组合系统等的电场分布进行了严格的计算，在准确求得各系统电场内各个剖分点的电场场强、偏导数等参量的基础上，采用蒙特-卡罗模拟方法和不等距龙格-库塔方法相结合，追踪由LaB_6单晶阴极表面发射出的大量电子束在电场内的运动轨迹，求出点扩展函数，并根据点扩展函数的优劣，反复调节、大量计算对比，挑选出X射线源最佳的电极结构及其组合。

The masses of N and Δ baryons are calculated based on the confining potential amended or not in chiral SU (3) quark model and three-body theory method. The results shown that amendment can improve some values, but the improvement is still not satisfactory and the quark model can described octet and decuplet well but excited baryons.

利用手征SU(3)夸克模型和三体理论方法，在考虑禁闭势带修正项和不带修正项两种情况下，计算了N和Δ重子质量。N和Δ重子谱的计算结果表明，增加修正项能改善一些计算值，但改善程度仍然不是很令人满意；SU(3)夸克模型能够很好描述重子的八重态和十重态，但不能很好地描述激发态的重子。

Based on technical progress and economic growth in Heibei province, Using potential analysis method, Innovatory and Empirical Study on Estimating Theory and Method of the progress on Science and Technology was made in this paper.

经济增长中的科技进步的作用和贡献问题是现代经济增长理论研究中的核心问题之一，多年来在世界范围内有很多经济学家基于不同的经济发展情况从理论和实证的角度研究了这一问题。

Firstly, the K-means clustering algorithm was improved by using the rough set theory to determine initial cluster centroids. On the basis of K-means clustering segmentation and region connection, the edges of the target and backgrounds were extracted accurately and intactly. After boundary tracking, the potential target regions were detected according to the characteristics of the extended target.

在预分割阶段，运用粗糙集理论求取初始聚类中心，在K-均值聚类分割和区域连通的基础上，检测图像边缘并进行边界跟踪，对于获得的目标和背景团块根据扩展目标特性确定目标潜在区域。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。