查询词典 nonequilibrium

ABSTRACT The fracture is a complex nonequilibrium and nonlinear evolution process.

岩石破裂是一个复杂的非平衡、非线性的演化过程。

In this thesis,based on the DFT+NEGF first-principles method,we construct a lead-molecule-lead sandwich system with single benzene-based molecule to investigate the relationship between the structure and properties of the molecular devices and the factors that influence properties of the molecular devices.Our computational investigations on these molecular devices are primarily concentrated on the effect of contact geometry between molecules and electrodes,the effect of side groups,the effect of different torsion angle between two phenyl rings and the effect of external electric field.This thesis consists of five chapters:In Chapter one,we mainly introduce the research background and development of the molecular electronics,including the experimental fabrication of molecular electronic components and theoretical simulation methods.Afterwards we discuss the questions that need to be solved in this area.Finally,the main contents of this thesis are listed.In Chapter two,we introduce the theoretical methods used in this thesis, including the main first-principles calculation methods,i.e.,the Density-Functionmethod and nonequilibrium Green\'s function.

本论文拟采用密度泛函理论和非平衡格林函数相结合的第一性原理计算方法，选取苯基小分子作为研究对象，构建了金属电极/有机小分子/金属电极三明治结构体系，系统地研究了苯基分子器件结构的改变与分子电输运性质之间的关系以及影响分子器件电输运性质的相关因素，其中重点研究了分子与电极间可能的接触结构改变、官能团、分子间的扭转角以及外电场对苯基分子电输运性质的影响，本论文主要包括以下五个章节的内容：第一章为综述部分，主要介绍了分子电子学产生的背景、分子器件的研究意义、当前研究分子器件的实验和主要理论方法，以及目前在研究分子器件中存在的一些问题，最后给出了本论文的主要研究内容和技术路线。

In the fourth chapter, making the assumption of local charge nonequilibrium and taking energy conservation into account, we ex plained the odd and even multiplicity distributions in different rapidity windows and the anomalous dependence of multiplicity moments on energy in narrow rapidity windows.

第四章用局域电荷不平衡的假设和对能量守恒的考虑很好地解释了不同快度窗口中带电多重数的奇、偶分布和窄快度窗口中多重数矩的反常能量依赖性。

Mine debris flow clough is a nonequilibrium opening system which is influnced by various factors.

矿山泥石流沟是受各种因素影响的远离非平衡态的开放系统。

Two forms of implicit TVD schemes are proposed in this paper for the simulation of nonequilibrium flows past hypersonic re entry vehicle, which are derived from the diagonal form of an approximate factorization algorithm and lower upper scheme applied to the implicit part of Harten Yee's TVD scheme respectively.

针对高超音速化学非平衡流提出了两种隐式格式。一种是近似因子分解算法对角化形式在隐式TVD格式上的推广，另一种可视为隐式TVD格式的LU分解形式。

This dissertation is concerned with the kinetics of the nonequilibrium dissociation and ionization of gases that are significant in the high temperature gas dynamics. There are two parts in the dissertation. In the first part, the kinetics of dissociating gas, a theoretical calculation is made of the nonequilibrium dissociation of the diatomic molecule behind a strong shock wave front.

中文题名高温气体解离和电离动力学研究副题名外文题名 The study of the kinetics of dissociation and ionization in the high temperature gases 论文作者王苏导师崔季平何宇中研究员范秉诚高级工程师学科专业一般力学研究领域\研究方向学位级别博士学位授予单位中国科学院力学研究所学位授予日期2001 论文页码总数125页关键词气体动力学电离复合非平衡解离速率振动－解离耦合馆藏号BSLW /2003 /O354 /1 本论文选取在高温气体动力学中具有重要意义的气体非平衡解离和电离动力学作为研究对象，包括两部分内容。

It can be seen from this that current system normalizing government behavior is a kind of system with nonequilibrium obviously, and its main embodiment as follows: the system supplies is deficient, the system supplies is superfluous and the functioning mechanism of the system is distempered.

在规范地方政府行为的制度变迁中，制度变迁的主体主要涉及三个方面的力量：中央政府、地方政府和社会大众。

In this thesis, the emission control technique by using nonequilibrium plasmas is investigated experimentally.

本文对非平衡等离子体处理柴油机尾气的技术做了探索性研究。

One often lacks a general theory to study nonequilibrium phase transition, because a nonequilibrium potential function is not available.

与平衡相变不同的是，对非平衡相变往往缺乏势函数的描述，因此往往也缺乏统一的理论。

It is demonstrated in the calculation that Park's two-temperature model underestimates the nonequilibrium dissociation rate coefficient and that Hansen's two-temperature model overestimates the nonequilibrium dissociation rate coefficient.

结果显示Park的双温度模型低估了非平衡解离速率系数，而Hansen的双温度模型则高估了非平衡解离速率系数。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐