查询词典 discrete problem

Two new concepts, named morphism attribute and morphism event were proposed. The problem of consistency maintenance when multi-resolution models were parallel implemented was researched and a new algorithm was proposed. Then the problem of interaction conflict in MRM was researched. To solve this problem, three methods were given, including mutex locking, conflict detecting and model-oriented method. The affection of morphism interaction to simulation result was analyzed and some basic principles to deal with this problem were given.

提出了同态属性和同态交互的概念；研究了多分辨率模型并发运行时的一致性维护问题，给出了多分辨率模型的一致性维护算法；研究了并发交互冲突的解决方法，包括：加锁方法、冲突检测法和面向模型的方法等；分析了同态交互对仿真结果的影响，给出了处理同态交互的基本原则。

The problem of PI controller design for the multi-input and multi-output system is transformed to that of static output feedback controller design via the new state variable. As to the problem of the static output feedback, a new LMI-based sufficient condition of the controller is presented in this thesis. We can gain the multivariable PI controllers just solving one LMI inequality. The numerical example is provided to illustrate the proposed design approach. 3.The H_∞ robust control is able to solve the multivariable problem, also the control problem characteristic of the modeling error, parameters uncertainties and unknown perturbation, Its application research in the power electronics is beginning now. Considering the characteristics of the PWM DC-DC converters, a multivariable PI controllers which is based on H_∞ Performance Index is designed.

通过构造新的状态变量，可以将多输入多输出系统的PI控制器设计问题转化为静态输出反馈控制问题，利用后者的成熟理论来设计控制器；本文在问题转化后采用更为简便的算法，只需通过求解一个LMI不等式，就能求取基于H_∞性能指标的多变量PI控制器参数，实例验证了算法的有效性。3.H_∞鲁棒控制具有处理多变量问题的能力，可解决具有建模误差、参数不确定和干扰未知系统的控制问题；它在电力电子学中的应用研究刚刚开始。

The question of searching characteristic points or straight lines on moving rigid body is decomposed into two relatively independent sub-questions. The first one is to evaluate the characteristic of points and straight lines on moving rigid body, whose mathematics model is a kind of special non-differential max-mini optimal problem with inequality constraints. By the method of Saddle-point Programming and maximum entropy, the problem can be transformed as a differential optimal problem with single objective. The second oner is to search approximative character points or straight lines on moving rigid body within design space, whose mathematic model is nonlinear and non-differential problem with multiple constraints.

本文将在运动刚体上寻找特征点或直线的优化问题分解为两个相对独立的子问题，一是对运动刚体上点或直线的特征性评定，其实质是平面曲线的圆度或直线度的评定问题，优化模型是以最大误差为最小作为优化目标的约束不可微的优化问题，本文采用鞍点规划和极大熵方法，将其转化为单目标可微优化模型；二是在设计空间内，寻找运动刚体上特征性评定指标最小的近似特征点或直线，其优化模型是非线性、多约束的不可微优化问题，本文提出用遗传算法和BFGS局部搜索法相结合来求解。

The approach of simplized the carflow adjustment problem support by the artificial intelligent is deliberated which could solve the heavy workload of construct model and solve the optimal problem of the routine carflow adjustment problem as a network optimalization problem.

针对日常车流调整作为网络优化问题在建模和计算的NP性质，提出人工智能支持下的对车流调整问题进行简化的思路。

Mao Zedongs thought about socialist economy system problem, has developed Marxism-Leninism on building the socialist public ownership problem, on depending on the socialist society pattern of ownership and assigning the system problem, on socialist society economic mechanism problem.

毛泽东关于社会主义经济体制问题的思想，在建立社会主义公有制问题上，在社会主义社会的所有制结构和分配制度问题上，在社会主义社会经济运行机制问题上，发展了马克思列宁主义。

Although the main length of the thesis makes an elaborate dissection of the specific expression problems , it does not attend to each and every aspect like bookkeeping account, but emphasizes on the important analysis of the creative parts of the works, such as the language combination problems of the three forms of plot of a play , record and experiment, the theme selection problem of the creation, and narrative pattern of the works, the basic theory problem related to the thesis is the analysis of the theory problem closely related to creation practice, and make more specific elaboration concerning with how to grasp these theory problems in the graduation creation, such as problem of the relationship between how to grasp the theme idea of the works and humanity in the author's graduation creation "April 20th,2008".

论文所涉及到的基本理论问题，是对与创作实践紧密相关的理论问题做以分析，并就如何在毕业创作中把握这些基本理论问题做了更为具体的阐述，如我在毕业作品《2008年4月20日》中是如何把握作品的主题思想与人性揭示之间的关系问题。

Studying from the angle of considering both the problem of farmers and the problem of cities, both the problem of getting employment and the problem of benefit and development, pluralization, systemalization and network can be used to effectively realize the transformation of the surplus labour in the rural areas.

从兼顾农民的问题和城市的问题、就业问题和效益与发展的问题的角度来研究，多元化、系统化、网络化的模式是实现农村富余劳动力转移的理想而又现实的选择。

Check content covered the aspect of almost full knowledge of series, if tried check of the 11st problem 2004 of series connect with knowledge of sue for peace, the 2 content check that try the 2nd big problem to combine analytic geometry, inequality of recurrence series, monotonicity and;2005 of knowledge of sue for peace year try the 7th problem to combine polynomial coefficient check knowledge of geometric series sue for peace, the 13rd problem is background check with recurrence series the preliminary knowledge; of the property that series concerns and number theory

考查内容涵盖了数列的几乎全部知识点，如2004年一试第11题考查了数列的通项和求和知识，二试第2大题结合解析几何、不等式的内容考查了递推数列的通项、单调性及求和知识；2005年一试第7题结合多项式系数考查了等比数列求和知识，第13题以递推数列为背景考查了数列有关的性质和数论的初步知识

Based on Pontryagin maximum principle, the lunar soft landing problem is transformed into a two-point boundary value problem in mathematics. In consideration of the bound condition and transversality condition, the resulted two-point boundary value problem is converted into a parameter optimization problem aiming at the initial values of conjugate variables and the terminal time, then it is solved by the nonlinear programming.

首先，从庞德里亚金极大值原理出发，将有限推力作用下月球软着陆问题转化为数学上的两点边值问题；在考虑边界条件及横截条件的前提下，将该两点边值问题转化为针对共轭变量初值和末时刻的优化问题；然后应用非线性规划方法求解所形成的参数优化问题。

In this paper, we propose a general model of a class of Lagrangian dual problem for the general nonlinear programming problem with respect to some Lagrange-type functions. We obtain that the zero duality gap exists between this class of Lagrangian dual problem and the primal problem.

针对一般的非线性规划问题，利用某些Lagrange型函数给出了一类Lagrangian对偶问题的一般模型，并证明它与原问题之间存在零对偶间隙。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。