查询词典 first order theory

Both a free volume approach for Helmholtz free energy and a theoretically-based fitted formula for radial distribution function of hard sphere solid were employed to describe the Helmholtz free energy of Lennard-Jones solid in the framework of first order thermodynamic perturbation theory.

结合描述硬球固体Helmholtz自由能的自由体积方法与描述硬球固体径向分布函数的拟合的分析表达式与一阶热力学摄动理论，用于描述Lennard—Jones固体的Helmholtz自由能。

In chapter 2, a finite element model for the composite sandwich plates is developed, based on the Zig-Zag deformation assumption and the first order shear deformation theory, and the finite element buckling analysis governing equations for the plates under mechanical, thermal and/or thermal-mechanical mixed loads are deduced respectively. By Von-Karman nonlinear deformation relations and Total Lagrange formulation, an incremental governing equation for postbuckling analysis is established and a corresponding effective computational scheme is presented..

第二章首先建立了基于Zig-Zag截面变形假定和Mindlin一阶剪切理论的夹层板有限元分析模型，分别推导了夹层板机械力、热载和热—机械力耦合屈曲分析的有限元列式和相应的屈曲前以及屈曲临界状态的平衡方程，基于Von-Karman大挠度理论，采用增量形式的全局lagrangian法推导了复合材料夹层板增量形式的几何非线性有限元离散平衡方程，给出了一种有效的非线性平衡方程的迭代求解格式。

Content: By learning this course, students should grasp the elementary solution of first order differential equation, the structure theory of linear differential equation or system of linear differential equations and the solution of constant coefficient differential equation or system of constant coefficient differential equations.

主要内容：通过对本课程学习，使学生掌握一阶微分方程的初等解法、线性微分方程的结构理论和常系数方程的解法，对微分方程初值问题的一些基础理论有一定的了解，对

It is well known that first-order logic and axiom set theory are two part of the whole mathematical logic.

众所周知，一阶逻辑与公理集合论是数理逻辑的两个组成部分，其中，一阶逻辑是数理逻辑的基础部分。

The measurement in set theory, the properties of Metric Space, Measurement Topology, Measurable Space, Perfect Metric Space and its application in first order circuit are explored in this paper.

本文论述了集合上的度量、度量空间的性质、度量拓扑、可度量化空间、完备度量空间、及一阶电路中的度量空间。

The first-order perturbation theory is used to the sensitivity profile of the K_ in the fast facility.

采用一级微扰理论研究了宏观实验装置的有效增殖因子K_随截面变化的灵敏度，推导了在球坐标下的灵敏度计算公式。

The event calculus is a theory for reasoning about action based on first-order predicate calculus.

事件演算是基于一阶谓词演算的行动推理理论。

Tang's first-order mean spherical approximation equation of state based on the theory of RDF is a totally theoretical EOS.

本文运用Tang基于FMSA开发的应用软件计算了LJ流体的径向分布函数、压缩因子、等温线以及汽液相共存相图等，并与分子模拟的结果相比较。

This one-way wave equation fits eikonal equation and transport equation corresponding to full acoustic wave equation in travel-time and first order amplitude. According to the perturbation theory often used in inverse solution, we split the velocity field into intraformational constant velocity background and variable velocity disturbance. Then we calculate time-shift quantity of migration and amplitude correction coefficients for wavefield depth continuation in total uniform formation and each formation.

基于反问题求解中常用的摄动理论，把速度场分裂为层内常速背景和变速扰动，求得整个均匀层波场深度延拓的偏移时移量及振幅校正系数、各层的偏移时移量及振幅校正系数，从而得到一个基于傅里叶有限差分法的双域保幅叠前深度偏移算子方程。

In the fifth chapter, the theory of photocatalytic degradation and kinetic study of methyl orange is carried out. Result of kinetic study show that the degradation reaction can be expressed by the first-order reaction kinetic model.

第五章以甲基橙为研究对象，研究了光催化反应动力学及其反应机理，结果表明，该反应降解可以用一级反应动力学方程进行描述。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。