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perfect model     
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  理想模型
     Cu/Zn Superoxide Dismutase Gene Knockout Mice——A Perfect Model for Cochlear Oxidative Damage
     Cu/ZnSOD基因敲除小鼠——研究耳蜗氧化损伤的理想模型
短句来源
     Conclusions A rat C6 brain-glioma model resembles histopathological features of human glioblastoma,which can be used as a perfect model to study the etiology of glioma.
     结论C6大鼠脑胶质瘤动物模型肿瘤生长及病理特征与人脑胶质瘤相似,可作为临床胶质瘤基础研究的理想模型
短句来源
     The results of perfect model,consistent mode imperfections method,advanced stochastic imperfections method and experiment are compared,by which some conclusions that are useful for engineering design and study of space sheet structure are obtained.
     实例为一试验模型 ,通过理想模型、一致缺陷法、改进随机缺陷法以及试验结果的对比 ,得出一些对板片结构体系设计和研究有益的结论。
短句来源
     During the process of control, pendulum can effectively reflect many pivotal problems such as equanimity,robust, follow-up and track, so it is a perfect model used to testing various control theories.
     在控制过程中,它能有效地反映诸如可镇定性、鲁棒性、随动性以及跟踪等许多控制中的关键问题,是检验各种控制理论的理想模型
短句来源
     Due to its big volume and being operated easily , the bacterial flagellar motor has become a perfect model for the research of revolving molecular motor , which conduces to understanding the mechanism of biologic energy transform and cell movement.
     由于鞭毛电机体积大、易操作,因而可作为研究分子旋转电机的理想模型,对认识生物能量转化及细胞运动机制有重要的意义。
短句来源
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  准确模型
     Research on the perfect model of stationary random signals
     平稳随机信号准确模型的研究
短句来源
  完全模型
     A necessary and sufficient condition for perfect model matching in linear multivariable systems is derived.
     文中提出了一种多变量控制系统完全模型匹配的充要条件。
短句来源
     All the work above breaks through the strict confinements of the perfect model following conditions, so that zero steady following errors are ensured for plant's outputs or other key state variables to corresponding those of reference model or to system inputs.
     本研究突破了完全模型跟踪条件的苛刻限制,能确保被控对象的输出等关键状态稳态无误差地跟踪参考模型,复现系统的指今输入。
短句来源
     Based on the criteria,a standard and general design method is studied in detail. Finally,it is proved that the reference models out of the method not only satisfy the perfect model following conditions,but also is controllable.
     据此提出了一种一般性的规范化设计方法,并证明了所得参考模型不仅满足完全模型跟踪的条件,而且完全可控.
短句来源
     One is called the perfect model, by which the tectonic block motion on the earth surface could be described if regarding the tectonic block as a rigid body and approximating the earth to a ball.
     其一称之为“完全模型”,把构造块体视为刚体,把地球近似为圆球,则块体在地表的运动可用该模型完全描述。
短句来源
     This paper introduces the detailed research on the perfect model matching methods for linear model following control(LMFC).
     研究了用完全模型匹配方法求解模型跟踪控制的问题。
短句来源
  完善模型
     DERIVATION OF STIFFNESS MATRIX FOR QUASI—PERFECT MODEL USING A MIXED ELEMENT—TYPE METHOD
     利用混合元素型法推导准完善模型的刚度阵
短句来源
     It is shown that the former is more evident than the latter, and after no modeling uncertainty is eliminated, a more perfect model can be acquired with modern identification method.
     在克服未建模不确定性后 ,通过采用现代辨识技术可以获得系统的较完善模型
短句来源

 

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  perfect model
That is, taking perfect model semantics and stable model semantic as an example, any logic program P can be transformed in polynomial time to another logic program P' such that perfect models (resp.
      
In this paper, it is shown that stable model semantics, perfect model semantics, and partial stable model semantics of disjunctive logic programs have the same expressive power with respect to the polynomial-time model-equivalent reduction.
      
In most neural network applications, it is impossible to suggest a perfect model, and consequently the ability to handle incomplete models is urgent.
      
In particular, the critical exponent of the surface magnetization is found to be close to that of the perfect model, Β1= 1/2.
      
Yet even a hypothetical perfect model, which exactly represented the dynamics of the real atmosphere, and which used data from the best conceivable observing system, could not produce an accurate forecast of indefinitely long range.
      
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In this paper four model following approaches are used to design Hydraulic Velocity Flight Simulation Table with One Axis. In using real model-following approach to design this system we discuss the problem of how to introduce input into the synthesized regulator system. In this paper we use a configuration somewhat different from that in the references [1] [2] [3]. When calculations are made with the formulas derived from our new configuration, the results show that the configuration in this paper can bet-...

In this paper four model following approaches are used to design Hydraulic Velocity Flight Simulation Table with One Axis. In using real model-following approach to design this system we discuss the problem of how to introduce input into the synthesized regulator system. In this paper we use a configuration somewhat different from that in the references [1] [2] [3]. When calculations are made with the formulas derived from our new configuration, the results show that the configuration in this paper can bet- ter follow the model than that in the references. In order to obtain satisfactory closed-loop transient characteristics a new method is introduced for choosing the weight matrices Q for rea1 model- following and type-zero perfect model-following' The weight matrices of the quadratic performance criterion are chosen according to the following formulas: Q=[q_(11) q_(22) q_(nn)] q_(11)=b_1~2-a_1~2 q_(22)=b_2~2-a_2~2-2(b_1 b_3-a_1 a_3) ………… q_(11)=b_i~2-a_i~2+2∑_r(-1)~r(b_(i-r)b_(i+r)-a_(i-r)a_(i+r)) ………… q_(nn)=b_n~2-a_n~2-2(b_(n-1)-a_(n-1)) When the weight matrices are so chosen the systems obtained certainly possess satisfactory dynamic character. In this paper for all four approaches we derive formulas for our given problem and perform calculations on digital computer.

本文讨论了将模型跟踪综合技术用于单轴液压速度转台综合设计的四种方法。文中在用“实模型跟踪”法时。采用了一种能较好地逼近模型的结构型式。为了使综合出的系统的对象闭环回路的所有极点都能满足要求,文中提出了“改进加权矩阵选法的实模型跟踪”和“改进加权矩阵选法的O—型完全模型跟踪”。

In this paper the duality principles of electrical circuits are extended to the switching converter topologies. The duality of transformers (ideal and perfect models) is investigated. In addition, the duality relationships of duty ratio parameters and semiconductor-switch topologies are also given. Applying these relationships, both the switching converter with (or without) isolated transformer and their canonical linearized circuit models can be directly and simply correlated by duality.

本文将电路理论中的对偶变换原理扩展应用于开关变换器电路的对偶分析。文中导出了动态导通比参数、半导体开关管拓扑以及变压器理想模型的对偶形式。应用这些对偶关系,可以较简便地直接将开关变换器及其小信号等效电路模型按照对偶原理分析,求得它们的对偶拓扑。

In this paper, some analyses had been done by combining theory with practice based on a case study of a village which is located in Xi-Hai-Gu region, the very well-known poor region in our country.Soil and water loscaused by improper land use as usually saying, but why people do not use their land properly even today? The analysshow that. firstly the key problem refers to the population capacity of environment in an area; secondly, the central link is man-land relaticnship in land use, from which the equation,...

In this paper, some analyses had been done by combining theory with practice based on a case study of a village which is located in Xi-Hai-Gu region, the very well-known poor region in our country.Soil and water loscaused by improper land use as usually saying, but why people do not use their land properly even today? The analysshow that. firstly the key problem refers to the population capacity of environment in an area; secondly, the central link is man-land relaticnship in land use, from which the equation, m_i=a_i×p_i can be summarized and it also predicates the population capacity of an area to be limited; and thirdly a perfect model of comprehensive controlling may be reached by two steps, the first is planting grasses, shrubs and trees and the second is controlling with engineering.

水土流失是土地利用不合理造成的,但为什么长期以来直到今天,人们不能合理地利用土地呢?通过上黄村理论联系实际的分析,认为这是涉及到人口的环境容量问题。只有从这里出发考虑问题,所出之策,方有可能为治本之策,提出土地利用上人地关系的中心环节,并将它抽象为一简单等式:m_i=a_i×p_i。对此式作的分析,仍然认为一地区的人口环境容量是有限度的,提出一个完备的综合治理典型是生物与工程相结合的,但在方法上可分为两步走:先生物,后工程,才顺理成章。

 
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