查询词典 stability criterion

We think that recognition criteria of impaired assets are combination of two-dimensional plane of the probable recognition criterion and the economic recognition criterion, while the permanent recognition criterion is a special case in which its probability is near 100 percent.

资产减值会计极大地增强了相关性，其最大的缺陷是有所削弱可靠性，但这种所失是以提高相关性为前提的，资产减值会计必须在二者之间作出抉择；资产减值会计是在现有条件和环境下对历史成本模式的改良，是现值会计模式一定条件下的提前运用；它突破了收益确定中的实现原则；是稳健原则在资产领域重要而具体的、系统的运用。

On the base of the algorithm,the initia l power of the main motor of the MDQ 1800 low level high speed palletizer determ ined by load power is checked and modified according to time criterion, heating criterion and starting torque criterion and a new met...

在此基础上，对按照负载功率确定的初始功率按发热判据、时间判据和起动转矩判据进行了校核和修改，获得了一种高频起动的异步电动机的功率选择方法。

Paper studies the practical stability of electricity market models by tools, for example, the appropriate structure Lyapunov functions, Cauchy matrix, the matrix measure, constant variation. Judging practical stability sufficient conditions and estimating formula of ultimate convergence boundary are provided. Conditions are descriptive by coefficients of models. At the same time, paper studies the Lyapunov stability of the electricity market. As well as the sufficient conditions of judging electricity market Lyapunov stability are provided. Some of conclusions improved the results of Alvarado and others. The conclusion of Lyapunov stability has made a comparative with practical results.

首次将实用稳定性理论和方法应用于电力市场稳定性的研究中，借助于构造合适的Lyapunov函数、柯西矩阵、矩阵测度、常数变易法等工具，系统研究了所建电力市场模型的实用稳定性，得到了用模型的系数来描述其实用稳定性的一系列判定条件和最终收敛边界的估计公式；同时对电力市场的Lyapunov稳定性进行了研究，得到了电力市场稳定性的若干判据，部分结论改进了Alvarado等人的结果；随后将Lyapunov稳定的结果与实用稳定进行了比较。

The results indicate that the effect of alloying elements V and Cr on mechanical properties at room-temperature, creep behavior and microstructures are similar. With increasing contents of V and Cr, their mechanical properties produce little change, the creep resistant property decreases and microstructure grows, which is mainly due to their characteristics of β-stability element and smaller atomic radius compared with Ti. On the contrary, the effects of V and Cr on the thermal stability are quite different. With increasing V content or decreasing Cr content the thermal stability for the alloy becomes better, which may be due to the different solution characteristics of V and Cr element in titanium alloy that V belongs to isomorphous β-stability element and Cr belongs to eutectoid β-stability element.

结果表明：合金元素V和Cr对Ti40合金室温力学性能、蠕变行为和组织的影响具有相似性，即随V和Cr含量的降低，合金室温综合力学性能变化不明显、抗蠕变能力减弱、组织粗化：这与V和Cr同属于β稳定元素、且原子半径都小于Ti原子有关；而V和Cr对于热稳定性能的影响则完全相反，V含量的增加或Cr含量的降低含金热稳定性能优化，其主要原因可能与V属于同品型β稳定元素而Cr属于共析型β稳定元素有关。

Firstly, the author establish the functions of stability on the basis of the spline function method ,according to the theory of geometrical nonlinear and the theory of stability, educe the stability equation of structure based on variational principle, then carry through the flexuosity analysis of CFST arch.The big distortion geometrical nonlinear was considered by the stability equation,the author simplified the problem of geometrical nonlinear through ignored quadratic term and reserve the simple term, at last boiled down to solve the linear stability equation of eigenvalue .

利用样条函数方法、根据几何非线性变形理论和结构稳定性理论，先建立起结构稳定的泛函，再由变分原理导出结构的稳定方程，进行钢管混凝土拱屈曲分析；本文所建立的稳定方程考虑了几何非线性的大变形效应，通过忽略几何非线性的二次项，保留一次项，将几何非线性问题简化，最后归结为求解线性稳定问题的特征值稳定方程，建立了结构非线性静力稳定性问题的新算法及失稳类型判别准则。

This paper focuses on the stability study of Rhizopus oryzae IFO4697 when used for the methanolysis of renewable oils for biodiesel production. The results showed that water content was important for achieving high catalytic activity and good stability of the biocatalyst. The optimum water content was found to be 5%-15%. Both particle size and desiccation methods showed no obvious effect on the stability of the biocatalyst. With GA cross-linking pretreatment, the stability of the biocatalyst could be improved significantly. When Rhizopus oryzae IFO4697 repeatedly used for next batch reaction, direct vacuum filtration was found to be a good way for the maintenance of good stability of the biocatalyst.

本实验对固定化全细胞Rhizopus oryzae IFO4697催化植物油脂合成生物柴油的稳定性进行了系统地研究，结果表明：反应体系水含量对于全细胞催化剂的反应活性和催化稳定性有重要影响， 5%~15%含水量适宜；研究范围内，载体粒度及干燥方式对稳定性影响不显著；经过戊二醛交联后，全细胞催化油脂甲醇解反应的稳定性显著提高， 1200 h反应后，仍然可以保持75%的生物柴油得率；真空抽滤直接回用的方式有利于稳定性的保持。

Emulsification is the mainly reason to influence on the reaction, the influences of emulsifiers such as the concentration of emulsifies, the ratio of anionic to nonionic emulsifier on the polymerization stability were researched;The influences of concentration and feeding method of initiators on the reaction stability and the mechanical properties of coating film of acrylate polymerization stability were researched;The influences of reaction temperature, stirring speed and pH buffer agent on the polymerization stability and pH regulator on the storage stability of Acrylate emulsions were also researched.

乳化剂是影响乳液稳定性的主要因素，因此对乳化剂进行了全面的探讨，包括乳化剂的种类和用量、阴离子型与非离子型乳化剂的比例对乳液稳定性的影响；文中还研究了引发剂的用量、加入方式对聚合稳定性的影响，以及引发剂用量对聚丙烯酸酯涂膜力学性能的影响；此外，讨论了反应温度、搅拌速率、pH值缓冲剂对乳液聚合过程稳定性的影响及pH调节剂对乳液贮存稳定性的影响。

The results show that the differences of beet root production, sugar and sugar production in different species and location have reached significant levels (F.01), variety and location of interaction effects are achieved very significant (F.01) or significant levels (F.05); Considered root production, sugar and sugar production and stability, ZM203, KWS9415 are better for the stability of high-yielding varieties, D0316, ZM203 are better for the stability of the high-sugar varieties, ZM201 for the stability of a high-yielding sugar, 2003-8 varieties is good for the stability of high-yielding sugar deviation species.

结果表明：甜菜块根产量、含糖率和产量糖在不同品种和地点的差异都达到极显著水平(F.01)，品种与地点互作效应都达到极显著(F.01)或显著水平(F.05)；综合考虑块根产量、含糖率和产量糖的表现和稳定性，ZM203、KWS9415为高产稳定性较好的品种，D0316、ZM203为高糖稳定性较好的品种，ZM201为高产糖量稳定性较好的品种，2003-8为高产糖量稳定性偏差的品种。

Modeling and stability analysis problem of linear switched system are emphasized in this part and main results include:(1) Through investigation in the projection of 〓 on x, where x denotes continuous state vector, a series of sufficient conditions for stability, asymptotic stability and unstability of linear switched system's equilibrium in the sense of Lyapunov are achieved. And also, a sufficient and necessary condition for state bounded stability of linear switched system is received.(2) For a class of periodical linear switched system whose switching sets are a group of ordinal lines starting from the original point, it's proved that state bounded stability can be defined by the running characteristic in a single period (3) Based on linear switched system, the concept of linear switched system network is put forward. Linear switched system network is a complex network interconnected by many linear switched systems.

这部分着重研究线性切换系统的建模与稳定性分析问题，主要成果包括：（1）通过考察〓在x上的投影，得到线性切换系统的平衡点在Lyapunov意义下稳定、渐近稳定及不稳定的一系列充分条件，并得到了线性切换系统状态有界稳定的一个充要条件；（2）证明了对于一类切换集为从原点出发的一组射线的周期线性切换系统，其状态有界稳定可根据一个周期内的系统运行特性来判定；（3）在线性切换系统的基础上提出了线性切换系统网络的概念，线性切换系统网络是由多个线性切换系统交互作用而形成的复杂网络。

Load model is representation of the relationship between the power and bus voltage. Load characteristics of power system have a significant effect on power system analysis of power flow and stability that includes transient stability, voltage stability and dynamic stability. The accurate load characteristics will help engineer to analysis power flow and stability.

中文摘要负载模型可反映负载功率和电压之间的相互关系，电力系统的负载特性对系统负载潮流及稳定度包括暂态稳定度、电压稳定度及动态稳定度的分析皆有著重大的影响，准确的负载特性将有助於电力工程人员在负载潮流与稳定度之模拟分析。

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