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Abstract: Iterative learning control is an effective approach to the control of processes that are repetitive in nature.In this paper,an open-closed-loop PI-type iterative learning control scheme for the precise tracking control of a class of discrete non
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文摘:对于具有重复运动性质的对象，迭代学习控制是一种有效的控制方法.针对一类离散非线性时变系统在有限时域上的精确轨迹跟踪问题，提出了一种开闭环PI型迭代学习控制律.这种迭代律同时利用系统当前的跟踪误差和前次迭代控制的跟踪误差修正控制作用.给出了所提出的学习控制律收敛的充分必要条件，并采用归纳法进行了证明.最后用仿真结果对收敛条件进行了验证. |
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Abstract: Judicial proof authentication at court is a litigation procedure during which judges attest the truth of the case at court.
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文摘:法官当庭认证是法官当庭认证案件事实的一种诉讼活动。 |
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Abstract: Knowledge is not only an endogenous variable, but also an exogenous variable, which is the base to understand the characteristic of the increasing or decreasing return of hi-tochnology in knowlodgc-bascd cconomy.
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文摘:知识既是内生变量，又是外生变量，这是理解高科技知识报酬递增与递减特点的基础。 |
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Abstract: Large quantities of spheric silver colloidal particles, which were protected by poly vinyl pyrrolidone (PVP),can be converted into flake silver powders using photoinduced method.
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摘要：将银溶胶用适当的保护剂保护后，置于一定波长的可见光下进行辐照可以得到纳米级片状银粉。 |
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Abstract: Large time delay exists in complicated practical processes.For example,in FCCU (Fluidized Catalytic Cracker Unit) reactor-regenerator,the feed is preheated through heat exchanging from fractional column slurry,thus results in large time delay.A
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文摘:实际的复杂工业过程，往往具有大的时滞，例如：炼油厂催化裂化装置的反应再生系统，其原料油预热通过油浆换热实现，因此时滞特别大.本文针对这一类大的时滞过程，设计了以动态矩阵控制为核心算法的预测控制系统，运行实践表明：这一控制方案比原PID控制在控制质量上有较大提高. |
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Abstract: Large volume hyperbaric oxygen tank for medical usage was successfully constructed in our hospital according to “Regulatory and Safe Regime of Oxygen Tank for Medical Usage” by administration.
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文摘:我院为首批根据国家《医用氧舱安全管理规定》最新标准通过新建高压氧舱验收的单位之一。 |
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Abstract: Latest progress in oil refining catalyst techniques abroad was reviewed, including FCC, hydrofining, hydrotreating, hydrocracking and catalytic reforming catalysts, with emphasis on new products of some representative producers of oil refining c
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文摘:以国外炼油催化剂生产具有代表性的大公司推荐的新产品为例，综述了催化裂化、加氢精制、加氢处理、加氢裂化和催化重整五类石油炼制催化剂的技术发展近况，并列举了部分应用实例。 |
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Abstract: Layout forms of irrigation canal system can be generally classified as three categories: series-wound canal system, equivalent shunt-wound canal system and nonequivalent shunt-wound canal system.
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文摘:灌溉渠系的布置形式一般可分为串联渠系、等效并联渠系和非等效并联渠系，对这3种灌溉渠系水利用系数进行了理论研究。 |
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Abstract: Legal application for the system of damages is applied widely in Common Law, compared to traditional civil system of compensatory damages.
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摘要:惩罚性损害赔偿制度是相对于传统的补偿性损害赔偿制度而言的，它是英美法中广泛认可的一种法律制度。 |
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Abstract: Liquid-phase chromatographic instruments and electric conductivity detectors produced by two factories were connected and adjusted for the purpose of their smooth operation.In addition,the optimum working conditions for detecting some inorganic
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文摘:对来自2个厂家的液相色谱仪和电导检测器进行连接、调试，使其能正常运行，并确定检测饮水中某些无机阴离子的最佳工作条件。 |
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Abstract: Literature is colsely related to language,cultural background,slang and writing,etc.Therefore,the positive role of literature in English teaching shouldn't be negelected.
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文摘:英美文学在语言、文化背景、俚语及写作等方面对提高学生英语水平都有较大帮助，因此不可忽视英美文学教育在英语教学中的积极作用。 |
