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     On the Interactions of Human Apolipoprotein H with Phospholipid Membranes and the Conformation of Membrane-bound Apolipoprotein H
     人载脂蛋白H磷脂膜的相互作用及其膜结合态构象的研究
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     ARRAY DESIGN AND TECHNOLOGY RESEARCH OF a-Si:H TFT-LCD WITH HIGH QUALITY
     高品质a-Si:H TFT-LCD阵列设计工艺研究
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     STUDY ON THEORY AND REAL TIME IMPLEMENTATION TECHNOLOGY OF IMAGE TARGET TRACKING WITH POINT CONSTRAINT IN TIME-SPACE DOMAIN
     点时空约束图像目标跟踪理论实时实现技术研究
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     Theory and Experiment of Optically Powered Oil Tank Multi-Parameter Measurement System with
     光纤传输光推动油罐多参数测量系统理论实验研究
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     study on the Preparation and Application of Cationic Starch with High Degree of Substitution
     高取代度阳离子淀粉的制备应用研究
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     Research on Optimal Design of Wheel Permanent Magnet Motor with Rectangular Wave Forms
     电动车矩形波永磁电动机的优化设计研究
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     Study on Source Process Inversion with Far Field Body Waves
     远场体波反演震源破裂过程研究
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     Active Control to Rotor Vibration with SMA
     形状记忆合金对转子系统进行主动控制
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     Study on Transgenic Detection with PCR and Feeding Safety of Glyphosate-tolerant Soybeans
     抗草甘膦大豆转基因PCR检测及其饲安全研究
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     The Production of Transgenic Sheep Embryos Transfected with Green Fluorescence Protein and Augmenter of Liver Regeneration Genes
     绿色荧光蛋白和肝再生增强因子基因进行转基因绵羊胚胎的研究
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     Study on Denoising Methods with Wavelet Packet and Pattern Recognition by Statistical Features for On-line Transformer Partial Discharge Monitoring
     变压器局部放电监测中小波包去噪和统计量识别放电模式的研究
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     Extraction of Partial Discharge Signal Feature with Complex Wavelet Transform
     复小波提取局部放电信号特征的原理及方法研究
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     Study of Chemical Oxygen-Iodine Laser with Nitrogen Buffer Gas
     氮气为载气的氧碘化学激光器的研究
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     Comparative Analysis of Hepatoma Specific T-cell Responses Induced by Dendritic Cells Loaded with Whole Cell Antigen in Different Strategies
     全细胞性肿瘤抗原不同方式负载树突状细胞诱导肝癌特异性T细胞反应的实验研究
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     A Study of the Structure of General Intelligence with Structural Equation Models
     结构方程模型探讨一般智力的结构
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     THE DEVELOPMENT OF CHROMIUM-DEPLETED ZONE IN 18-8 STAINLESS STEEL WITH TIME OF SENSITIZATION
     18鉻-8镍型不銹鋼中的貧鉻区随着敏化时間的发展
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     With development and wide application of the network,the information of Internet have changed from static way to dymatic interactive way,the connection of website and database becomes more and more important.
     随着网络的发展和广泛应用,Internet中的信息已经由静态方式发展为动态的交互方式,网站与数据库的连接也显得越来越重要。
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     Test results show that gradation 1 and gradation 4,gradation 2 and gradation 3 have the similar performance of frost resistance; the frost resistance coefficient of the former is about 40% when the cycle of freezing and thawing is 50 and the coefficient of the latter is still larger than 70% when the cycle is 100.Besides,the former is much smaller than the latter and the frost resistance coefficient decreases with the increase of cycle of freezing and thawing.
     结果表明,级配1与级配4,级配2与级配3具有类似的抗冻性,前者冻融循环50次后抗冻系数约为40%,后者冻融循环100次后抗冻系数仍大于70%,前者明显低于后者,且抗冻系数分别随着冻融循环次数的增加而降低。
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     Since entering the 21st century,with the change of the history culture,the contemporary Chinese aesthetics has also entered in a new history time.
     进入21世纪以来,随着历史文化的变迁,当代中国美学也步入了一个新的历史时期。
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     It was showed that the stability of TiO_2/ZnO water sol increased with increase of ZnO rate and dosage of acetic acid.
     结果表明:TiO2/ZnO复合水溶胶的稳定性随着ZnO所占比例的增大,冰乙酸量的增多都逐渐增强;
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The basic tool is the decomposition ofN pairs of free charged bosons with respect toglN and the commuting withglN Lie algebra of infinite matrices?l.
      
In this note we present a very simple method of proving that some hyperbolic manifoldsM have finite sheeted covers with positive first Betti number.
      
In the case of 4-dimensional anticommutative algebras a construction is given that links the associated cubic surface and the 27 lines on it with the structure of subalgebras of the algebra.
      
Open subsets of projective spaces with a good quotient by an action of a reductive group
      
The aim of the paper is to describe all open subsets of a projective space with an action of a reductive group which admits a good quotient.
      
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In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their...

In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their com-ponents are discussed. In the last part of the paper methods of compensating sampled data systems with dead time elements is also considered.

在通常的脉冲控制系统中,当输入信号是阶跃函数时,系统的过渡过程至少在n个采样周期内才能完全结束(n是控制对象的阶数).文中考虑了采用宽度不等的多拍脉冲代替通常的单拍脉冲以加快系统的过渡过程.在采用多拍脉冲以后,系统的过渡过程可以在少于n个采样周期内,甚至在一个采样周期内完全结束.文中叙述了这种脉冲系统的综合方法,也讨论了系统中有关组成部分——脉冲组成器和校正装置——的构成方案及其参数的计算方法.最后并考虑了由于时滞引起的对系统动态特性有害影响的补偿问题.文中举有例题,对文中各节内容作必要的说明.

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into...

In this paper the general synthesis problem of optimal control systems with the criterion of transient responses as a positive integral functional (3) is discussed.In the first part it is assumed that the motion of controlled object is described by a system of ordinary differential equations and that the final states of the system form a bounded and closed convex region in n-dimentional euclidian phase space. A method is proposed for finding all optimal control functions which lead any starting state into the given final region of states. Some conclusions are obtained from the maximum principle by using transversal conditions of optimal trajectories in terminal points, and the particular properties of the stated problem are pointed out. The case of linear dif-ferential equations with integral quadratic functional criterion is investigated in detail.Further, in the second part the fundamental properties of isoloss regions, the rela-tions between the isoloss region and optimal control functions are indicated. As a direct result a partial differential equation determining the optimal loss-function J (x) is found and the connection between function J (x)and optimal vector control function u (x) is also stated. The methods proposed are practically the extension of the me-thods used by us for designing time optimal control systems as seen in [5, 6 ,7].Finally, an example is illustrated with optimal trajectories shown in phase plane.The necessary numerical data is calculated by an analog computer with high accuracy.

文中研究了具有公式(3)表示的一般正积分泛函的最优控制系统的综合问题.在第一部分中研究了具有控制参数的一阶微分方程组.控制系统的终点状态为n维相空间内的某一逐段光滑边界的闭性区域Ω.文中指出了根据极大值原理和轨道终点的横截条件寻找引到Ω的所有最优轨迹的方法.这里详细地研究了具有二次泛函和被积函数中不明显含有控制参数的质量指标泛函的线性方程情况.在文中第二部分研究了等损耗区的主要特性.指出了等损耗区与最优控制函数之间的关系.导出了求算最优损耗函数J(x)的偏微分方程,以及这一函数与最优控制函数u(x)的关系.上述方法是我们曾在文献[5,6,7]中用过的最优快速系统的综合方法的推广.文章最后举有例证.

This paper presents an investigation of the"Automatic Operator" of Diesel Loco-motive based on the principle of compound programming control. According to the sur-rounding conditions of locomotive, the"Automatic Operator"can change its structure automatically in order to obtain better quality of control.In this paper, the principle scheme, the characteristics of"Automatic Operator" and the experimental results of automatic control of Diesel locomotive with "Automatic Operator"are presented, the principle...

This paper presents an investigation of the"Automatic Operator" of Diesel Loco-motive based on the principle of compound programming control. According to the sur-rounding conditions of locomotive, the"Automatic Operator"can change its structure automatically in order to obtain better quality of control.In this paper, the principle scheme, the characteristics of"Automatic Operator" and the experimental results of automatic control of Diesel locomotive with "Automatic Operator"are presented, the principle and the design of logical circuit for changing the characteristics of"Automatic Operator"is emphasized. The latter part of the paper in-cludes a discussion of quality of control; and finally, formulas for determining the para-meters of the control system are derived.

文内介绍了采用复合控制原理和根据机车所处客观条件自动切换系统结构的内燃机车程序控制方案,介绍了按此方案制成的(自动司机)总体线路及其性能.介绍了利用这台控制机进行内燃机车自动驾驶的全面试验结果.文中着重讨论了自动切换系统结构的逻辑装置的设计计算.给出了综合这类系统参数的计算公式.此外,对系统的控制质量进行了详细讨论.

 
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