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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。

Branded the AlphaBet multi-player poker network, powered by NYX Interactive and operated by Trimark Gaming, the venture offers online gaming operators the opportunity to take part in a multi-faceted marketing strategy.

Alphabet扑克网络，由NYX开发游戏平台，由Trimark网络博彩公司管理经营，给在线游戏运营商提供一个多层面的营销策略。

Is the temperate zone oceanity monsoon climate. In June multi-plum rains, summer autumn multi-typhoons. In January north average temperature - 6℃, south 16℃; In July north 17℃, south 28℃.

属温带海洋性季风气候。6月多梅雨，夏秋季多台风。1月平均气温北部-6℃，南部16℃；7月北部17℃，南部28℃。

Thus, we may have to extend our view from one dimensional axis to multi-dimensional space, m -space, and to extend our research tools from scalars to multi-component vectors, m -vectors.

因而，我们可能要扩展我们的眼光，把我们的眼光从一维的"数轴"扩展到"多维空间"，把我们的分析工具从"标量"扩展到"多元向量"。

West has pointed out that the newly-emerged tactics of cultural differences is characterized by the substitution of one-dimensionality and homogeneity with multi-dimensionality and multiplicity, the replacement of the abstract general and universal by the concrete exceptional and singular, and the realization of the historicization contextualization and multi-dimentionalization through the emphasis on the accidental temporary uncertain indeterminate transformative and changeable.

柯尔内·韦尔斯明确指出，"新的文化差异性策略的明显特征在于用多样性、多元性和异质去取代一元和同质。拒斥抽象、一般和普遍，而代之以具体、特殊和个别。通过强调偶然、暂时、无常、不确定性、转换和变化而实现历史化、情境化和多元化。"

Fourthly, the decision rules are classified into three parts: one-one, one-multi and multi-one.

再次，将属性约简和属性值约简后的决策规则分为三类：一对一、一对多和多对一。

Based on hence being living in the multi-medium electric network courseware design of Web ,Will sufficiently bring into play present calculating machine technique and multi-medium technique advantage 、Much shapes 、The substance message that will be showed is open up before one's eyes in audio-visual quality and stereoscopicization the earth .

因此在基于Web的多媒体网络课件设计中，要充分发挥当前计算机技术及多媒体技术的优越性、多形式、直观性和立体化地展示所要表达的内容信息。

In order to meet the new century, the needs of modern teaching, the facilities are the standard school building at the national level, with the rationale for modernization, Chemistry and Biology Lab Equipment, bright and spacious open-shelf books to read hall, the best technology tip of the large, medium and small Multi-function Hall, advanced multi-media teaching network, large-scale sports facilities, improve the logistics services.

为适应新世纪现代化教学的需要，各项设施均按国家一级学校标准建设，拥有现代化的理、化、生实验设备，宽敞明亮的开架图书阅览大厅，占尽科技先端的大、中、小型多功能报告厅，先进的多媒体教学网络，大型的体育场馆，完善的后勤服务系统。

Based on the method of multi-objective fuzzy optimization and the overhead traveling crane design, a mathematical model of fuzzy optimization for main box beam section is established. A fuzzy goal anthology is constructed. The fuzziness of multi-objective function and constraints is defined. The transformation of the fuzzy constraints set to normal constraints set in real number domain is realized by applying optimal level cut set method. The optimal solution and optimal constraint value of sub-objective function in the feasible field are found using the genetic algorithms.

应用多目标模糊优化方法，以工程设计中桥式起重机箱形主梁设计为实例，建立了桥式起重机箱形主梁多目标模糊优化设计的数学模型，构造了模糊目标集，确定了多目标函数的模糊性和约束的模糊性，并应用最优水平截集法实现了模糊约束到实数论域上的集合转换，从而用遗传算法寻求到子目标函数在可行域空间的最优解和约束最优值。

In view of complicated decision-making problems in enterprises, a multi-dimension and multi-objective fuzzy optimum dynamic programming model is established. Furthermore, RAGA and dynamic programming are combined for solution, which may guarantee the optimum variable.

根据企业所面临的复杂的投资决策中的问题，建立了多维多目标模糊优选动态规划模型，并将遗传算法与动态规划法相结合进行求解，保证了优化变量的解的全局最优性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。