查询词典 conditions

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。

Huang and Lin proposed the weak solution concept for Backward Stochastic Differential Equation This paper based on the predecessor's work , gives the weak solution concept for Backward Stochastic Differential Equation with continuous martingale,uses the Girsanov transformation, obtains its weak solution of the existence of a necessary and sufficient conditions, and on this basis obtains its weak solution of the existence of sufficient conditions,these sufficient conditions weakened the drifting coefficient which requested in the existence uniqueness of strong solution to satisfy the Lipschitz condition the request.

本文在前人研究的基础上，给出由连续鞅驱动的倒向随机微分方程弱解的概念，利用Girsanov变换，得到其弱解存在的存在的一个充分必要条件，并在此基础上得到了其弱解存在的一些充分条件，这些充分条件减弱了在强解的存在唯一性中要求的漂移系数满足Lipschitz条件的要求。

Spectral element methods for partial differencial equation is introduced in this study from viewpoint of the collocation approximation of Chebyshev polynomial. Wave Equation and its space discretization are deduced. Two time integral methods, central difference method and implicit Newmark method, are introduced, and their stability and applicability are also discussed in some details. The significance of absorbing boundary conditions in spectral element methods for Aeroacoustics is explained, and Clayton-Engquist-Majda absorbing boundary conditions is emphasized and introduced, then the discrete scheme of this boundary conditions is deduced and applied to spectral element methods for wave equation.

本文从Chebyshev多项式逼近理论出发，详细介绍了谱元方法求解偏微分方程的过程；推导了流体中的声波动方程并在空间上对其进行了谱元离散；详细讨论了两种时间积分方法──中心差分法和Newmark方法，分析了它们的稳定性条件，并从理论上对比了两种方法的优缺点和适用范围；将吸收边界条件推广应用于谱元方法求解气动声学问题中，重点介绍了Clayton-Engquist-Majda吸收边界条件的原理和公式，推导了该吸收边界条件的变分形式，并将其引入波动方程的离散形式中。

Pragmatically, If-conditionals in English can be used to indirectly express such speech acts as promises, threats, requests, suggestions, etc.; the antecedents can be genuine conditions or non-genuine conditions, and can also express hypothetical and concessive meanings. When they express non-genuine conditions, they are in fact on a higher speech act level than the consequents.

英语中的"if"条件句在语用上还可以间接地表示承诺，威胁，请求，建议等言语行为；其前件既可以是真正条件，也可以是非真正条件，还可以表达假设，让步等意义；从语用学的角度分析，当"if"条件句的前件表达非真正条件时，它与后件处于不同的言语行为层次上。

Suppose C is a Graph with k loops andf: G 梸- G is a continuous map with at least a peri- odic point. We prove the following three conditions are equivalent:(1) f is equicontinuous;(2) One of the following End + 2k + 1 conditions holds: in FJm.~0(E~+2L!= flJ1,m = l,2,挃,End J=1 + 2k; 1 0 = flf is a ioop on Gandf I~:0?- 0 is conjugate j=1 to a rational rotation;(3) One of the following End + 2k + 1 conditions holds: k m Lfl.m/~oE~(G+2i!~ is uniformly convergent, m = 1,2,,End+2k; n There is a poistive integer number n,~~~ is uniformly convergent.

假设G是含有k个圈的图，f是G到自身上的连续映射，并且至少有一个周期点，我们证明了下列三条陈述是等价的：（1）f是等度连续的；（2）下列End+2k+1个条件之一成立： m）F l）O=是G的一个圈，且fl_o：O→O共轭于一个有理旋转；（3）下列End+2k+1个条件之一成立： m）是一致收敛的，m=1，2，…，End+2k； l）存在某个正整数n，是一致收敛的。

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下：1对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

Significant effects of warming onbiomass allocation were only found for the A. faxoniana seedlings grown under lowlight conditions, with significantly increased in leaf mass ratio and decreasedin R/S in responses to warming manipulation. The carbon allocation responses of B.albo-sinensis seedling to warming under full light conditions were similar with theresponse of A. faxoniana seedlings grown under low light conditions. Warmingsignificantly decreased root mass ratio, and increased leaf mass ratioand shoot/root biomass ratio for the B. albo-sinensis seedlings grown under fulllight conditions.

无论在全光或林下低光环境下，增温都促使云杉幼苗将更多的生物量分配到植物地下部分，从而导致幼苗在增温条件下有更高的R／S比；增温仅在林下低光条件下促使冷杉幼苗将更多的生物量投入到植物叶部，从而使幼苗R／S比显著地降低：增温在全光条件下对红桦幼苗生物量分配的影响趋势与冷杉幼苗在低光条件下相似，即增温在全光条件下促使红桦幼苗分配更多的生物量到植物同化部分一叶部。

Under weaker conditions(without theirhomogeneous conditions,monotonic inequalities and Lipschitz conditions)than that which Iwaniec and other people imposed on some specialsystems(quasi-regular mappings),using Hodge decomposition theoremto construct testing function,after a series of complicated calculation,weobtain the same regularity results as them to a more general non-linearelliptic systems(2):under certain conditions,the very weak solutionsto non-linear elliptic systems(2)are weak solutions.

对一般的方程组（2），我们减弱了Iwaniec等的齐次性条件、单调不等式以及Lipschitz型条件，利用Hodge分解定理来构造试验函数，并进行了一系列复杂的计算，在没有Lipschitz型条件的情况下，也得到了与itz型条件的情况下，也得到了与，即在一定的条件下，方程组（2）的很弱解是弱解。

The adding of anatase nano-crystalline TiO_2 to the deposition solution accelerates the depositing of TiO_2 articles from the deposition solution on the silica glass fiber. A well-combined and durable TiO_2 thin film on silica glass fibers surface obtained by controlling the deposition temperature, deposition time, deposition cycles, concentration of the deposition solution, relative concentration of the deposition materials, pH value of the deposition solution. The effect of the deposition conditions, the drying conditions and the annealing treatment conditions on the surface morphology, section morphology, growth patterns, thickness of the deposited TiO_2 thin films were investigated. Growth rate and particle size of the thin films were controlled by the deposition conditions.

实验结果表明加入微量的锐钛矿型纳米TiO_2诱导晶可以使沉积液中析出的TiO_2粒子更大程度的以锐钛矿型纳米TiO_2粒子的形式析出；通过对沉积温度、沉积液中组分浓度及相对浓度、沉积溶液的pH值的调节与控制，从而控制沉积溶液中化学反应平衡的移动，研究了以上条件对沉积速率、沉积溶液中[Ti6]2–与—OH、[Ti6]2–之间的脱水聚合反应速率的影响，总结出了获得均匀致密质量较好的TiO_2薄膜的一系列实验参数，并对薄膜的生长模式进行了系统的分析研究；通过对沉积时间及沉积次数的分析，可以有效的控制TiO_2薄膜的厚度及质量；通过对薄膜的干燥条件及热处理条件的控制，可以使利用液相沉积法获得的TiO_2薄膜进一步晶化；并分析了对薄膜引起缺陷的主要原因。

First, the rural social security system should be developed in accordance with the national conditions, including economic and social development status quo, people's views and security traditions. Next, the thesis puts forward the guiding thought and general principles for the establishment of the system based on the national conditions, and clearly sets forth the idea of establishing the transitional rural social security system. Then, the thesis makes explanation and analysis respectively on the existing security types, hoping to find the proper components of the rural social security system that is suited to the conditions of the country. At last, the thesis puts forward the objective mode and transitional mode of the establishment of the system at the macro level. The objective mode is the development direction of the transitional mode, and the transitional mode is a necessary stage of the objective mode. Only when establishing the vigorous transitional mode that is suited to the national conditions and achieving development, can the objective mode be possibly realized in the self-evolution of the transitional mode.

首先，我国农村社会保障制度建设应当立足于我国的基本国情，包括经济社会发展现状、人们的观念、保障传统等方面；其次，在基本国情的基础上提出了建立我国农村社会保障制度的指导思想和一般原则，明确提出了建立过渡型农村社会保障制度的构想；而后，本文对农村社会保障现存的几种保障方式一一做出了说明和分析，以期为构建适合我国国情的农村社会保障制度模式找到合适的构成要素；最后，本文从较为宏观的层次提出了我国农村社会保障制度建设的目标模式和过渡模式，目标模式是过渡模式的发展方向，而过渡模式是目标模式建设的必经阶段，只有在建立适合国情具有活力的过渡模式并取得发展的基础上，目标模式才有可能在过渡模式本身的自我升级过程中逐步实现。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了