查询词典 mechanics

As one of the waysto study molecular reaction dynamics, dynamical Lie Algebraicmethod is introduced with establishment of matrix mechanics, and appliedto many research fields with the development of quantum mechanics ofelementary particles.

作为分子反应动力学的研究方法之一，动力学李代数方法随着矩阵力学的建立而引入，并随着基本粒子量子力学的发展被广泛应用到许多研究领域，取得了不错的效果。

On the basis of deriving stiffness matrix of an elastic beam unit, the knowledge of computation mechanics and finite element method are used to analyze the strutbeam under distributional load, a finite element analysis result is obtained through an example calculation, which is compared with those of Ansys and material mechanics so as to demonstrate its correctness.

在求出弹性梁单元刚度矩阵的基础上，利用计算力学和有限元法的知识，对分布载荷作用下的简支梁进行了分析。

The ideas and methods of modern differential geometry have found wide application in classical mechanics, in the theory of multibody system dynamics, and in the Lagrangian and Hamiltonian formalisms of mechanics.

微分几何动力学建模理论已经广泛应用于经典力学，多刚体动力学理论和Lagrange和Hamilton动力学建模理论当中。

We used COMPASS force field in Molecular Mechanics and Molecular Dynamics simulation, and used Density Functional Theory method in Quantum Mechanics simulation.

分子力学和分子动力学部分主要采用COMPASS力场，量子力学部分主要采用密度泛函理论方法。

The aim of this paper is to answer the query on the foundation of quantum mechanics advanced by Tao Zongying in articles,Acta Mathematica Scientia,1982,2(2):183～192 and Acta Photonica Sinica,1997,26(9):769～770.It is shown,based on the globalism concept in quantum mechanics,that Landau and Lifshitz′s momentum probability distribution function of a particle in a one dimensional infinitely deep square potential well is correct,and that Pauli and other′s distribution function is incorrect.The problem of mome...

本文回答了文献1～2对量子力学提出的疑问基于量子力学的整体性概念指出，Landau和Lifshitz给出的一维无限深方势阱中粒子的动能概率分布函数是正确的，Pauli等人给出的概率分布函数是不正确的从量子测量理论的角度讨论了一维谐振子的动量概率分布问题，并且指出势能大于本征能量的概率不为零并不表示存在负动能的概率分布区域

And the conservation laws of moment and momentum are obtained by the combining the tiny element analysis method in continua mechanics with variation principle in analytical mechanics.

论文摘要：本文在建立时变边界挠性体的动力学方程时，将并入的质量对挠性体的作用当作时变边界上的表面力，并将连续介质力学中的微元分析法和分析力学中的变分原理相结合，导出了时变边界的变质量刚体的动量和动量矩矩方程。

The engineering geological properties of Neogene hard clays and related engineering problems are frontiers in the fields of Engineering Geology, Soil Mechanics and Rock Mechanics.

上第三系硬粘土的工程地质特性及其相关的工程问题是当前工程地质学、土力学和岩石力学研究的前沿领域。

01 Is a first-semester freshman physics class in Newtonian Mechanics, Fluid Mechanics, and Kinetic Gas Theory.

介绍：8.01是大学新生第一学期的物理课，它包括牛顿力学、流体力学和气体动力论。

The mathematical model is dispersed by finite-volume method and the dispersed equations are solved by SIMPLER algorithm. This is the first time to solve a problem of drilling fluid mechanics with the numerical method of Newtonian fluid mechanics.

5首次将牛顿流体力学经常采用的数值方法用于钻井流体力学的研究中：用有限体积法离散钻井液流动和传热的数学模型，用Simpler算法求解该数学模型的离散化方程。

It's assumed that when →0, correct non-relative quantum mechanics should be equivalent to Newtonian mechanics.

假设→0时一个正确的非相对论量子力学与牛顿力学等价，以此为出发点，对目前公认的非相对论量子力学作了细微的修改。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。