查询词典 stable equilibrium

The item set up and put into production then can become annual 100 ten thousand sets intelligence digital gas meter and network management system, can realize sale income 38000 ten thousand yuan, annual sale tax and affixture 1687.8 ten thousand yuan, annual profits total amount 3412.83 ten thousand yuan, ratio of investment profit 43.08% ratio of investment be nefit tax 64.81%; internal rate of return of finance 43.11% investment recovery period 3.54 years, profit and loss equilibrium point 37%, the item has good profit ability and pay off ability, and has the ability of certain anti-risk.

本项目建成投产后可形成年产100万台智能数字燃气仪表及网络管理系统，可实现销售收入38000万元，年销售税金及附加1687.80万元，年利润总额3412.83万元，投资利润率43.08%，投资利税率64.81%，财务内部收益率43.11%，投资回收期3.54年，盈亏平衡点37%，项目具有良好的盈利能力和清偿能力，并具有一定的抗风险能力。

The document construct a general equilibrium model of life cycle savings combined with endogenous growth to proof the economic effects of Chinese population aging based on the analysis.

在定性分析的基础上，本文构建了一个含有人口老龄化因素的经济增长模型，用数理推导的方法来论证人口老龄化对经济增长的作用效应。

In the explore in water seepage mechanism of highway engineering, at the foundation of author's and other people's research, the author study the groundwater seepage and infiltration of rain and water with the groundwater dynamics, the rock mechanics ,the soil mechanics, the hydrologic geology, the engineering geology, the agrology. With the research result of the water seepage mechanism of highway, the author also study the principle design of waterproof, drainage and water environmental protection. The author's work is as follows:(1) The water circulation, the groundwater type and conversion, the equilibrium and circulation in soil water are introduced and studied; The seepage characteristics of rock and soil in response to stress are analyzed and studied.

作为在"公路工程地质环境中水渗流机制问题研究"中的探索研究，在本人科研和前人研究工作的基础上，以地下水动力学、岩土力学、水文地质学、工程地质学、土壤学为基础，研究公路工程建设对地下水渗流和雨水入渗的影响，以及公路防排水和水环境保护设计的原则方法，具体开展了如下研究工作：(1)首先对水循环、地下水类型及转化、土壤水平衡与循环进行了研究和介绍；分析研究了应力对岩土体渗流特性产生影响的机理。

Factors such as a continued lack of equilibrium in air mass distribution would also give supporting energy to the cyclone.

因素，如继续缺乏平衡的空气质量分布也将给予支持能源的旋风。

The relationship between stress and strain of concrete in prestressed concrete bridge s is written as algebraic form within load duration and the equilibrium equations of internal force and compatibility conditions are introduced.

首先将预应力混凝土桥梁中考虑收缩、徐变影响的任意时刻混凝土应力、应变关系在持荷时段内写成代数形式，引入内力平衡方程及变形协调条件后，提出了计入截面上钢筋位置、配筋率、预应力钢筋松弛、混凝土弹性模量随时间变化等影响的徐变效应分析的全量形式自动递进法，并建立了计算式，适用于任何形式的收缩、徐变特性表达式；基于建立的全量形式公式，可方便地求解任意时刻混凝土、钢筋的应力与应变和梁体竖向变形。

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

论文对热点问题——反应精馏过程的建模与优化控制相关技术进行了深入的研究，取得了一系列成果：1、建立了反应精馏过程机理模型，基于拟均相假设，将反应和分离过程进行解耦，推导出反应精馏过程的非平衡级稳态模型和动态模型，通过引入推广的分离效率函数，对模型变量进行了合理划分，显著提高了模型求解效率；将动态模型和控制系统方程结合，建立了反应精馏过程控制系统研究的辅助工具。2、全面分析了乳酸提纯反应精馏新工艺试验装置，利用本文建立的过程机理模型，对该试验装置进行了稳态和动态性能分析及水力学核算；设计和分析了单边质量控制方案，比较了间接和直接物料平衡控制两种方案的控制性能。

Necessary and sufficient conditions for the equilibrium of a coplanar system of force couples: the algebraic sum of their moments has to be zero.

平面力偶系合成结果还是一个力偶，其力偶矩为各力偶矩的代数和。

ABSTRACT In the present paper experimental studies on thermodynamic behaviour of titanium and silicon oxides in a number of quaternary and pentanary molten slags have been made by means of H〓O/H〓 chemical equilibrium between copper melts and molten slags in alundum crucibles with the molybdenum plate as the liners.

本文采用H〓O/H〓定组成混合气体与钼衬坩埚中熔渣之间的化学平衡方法，实验研究了多个四元和五元熔渣中钛和硅氧化物的热力学行为。

How should organizations achieve balance between exploration and exploitation-via ambidexterity or punctuated equilibrium?

组织应该如何通过同时加强这两者还是间断均衡来平衡这两者之间的关系？

At the same time, this thesis focuses on the theoretical research on the LBGK method and discusses the inner relation between the LBGK and the N-S equations.The relationship among the selection of velocity group , the forms of equilibrium distribution functions,and the macroscopic N-S equations is clearly revealed.LBGK method has many advantages, such as easy dealing with the complex boundary conditions and high amenability to parallel computing.

本文系统地总结了各种LBGK模型，特别是对LBGK模拟二相流和多相流模型进行了认真地研究；同时从新的角度对LBGK进行了理论研究，用全新的方法探讨了LBGK和N-S方程的本质联系，清晰地揭示了速度族的选择、平衡态分布函数的形式和宏观NS方程三者之间的关系。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48