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  corditions
     In this paper,According to the recognition corditions of a class of bifurcation problem 1 ,Aclass of elliptic are studied,Bifurcation graph are given.
     利用一类分歧问题的识别条件〔1〕,对一类椭圆问题进行了探讨,给出了其分歧图线。
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  “条件〔”译为未确定词的双语例句
     By studying the Mo(Ⅵ) and W( Ⅵ ) catalyzed H2O2-iodide kinetic reaction, conditions for the simultaneous determination of molybdenum and tungsten were established as; [H2O2] = 9. 7×l0-3mol/L, [I-] = l. 0×10-2mol/L, pH 3. 0, and 25C.
     研究了钼(Ⅵ)和钨(Ⅵ)催化的H_2O_2-I~-动力学反应,确定了同时测定条件:〔H_2O_2〕=9.7×10~(-3)mol/L,〔I~-〕=1.0×10~(-2)mol/L,PH3.0,25℃;
短句来源
     The structure of compatibilizer was studied by means of IR spectra. The results showed if compatibilizer was prepared when CPE/CPP+CPE was 0.11,BPO/BA was 0.10,temperature was 125℃ to 130℃,the grafting and bridging efficiency of BA were 47%,the conversing degree of CPE was 22.6%,and the effective composition in the compatibilizer was high.
     结果表明,在较佳工艺条件〔CPE/(PP+CPE)=0.25,架桥剂/(PP+CPE)=0.11,BPO/架桥剂=0.10,T=125~130℃〕下制得的增容剂中,架桥剂的接枝、架桥效率为47%,CPE的转化率为22.6%,起增容作用的有效成分含量较大。
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     According to the dispersion concentric model,the premise condition to keep the highest efficiency of the heat exchanger was established,based on the analysis of temperature front enlarging and the evaluation of the efficiency of heat exchanger.
     依据混合扩散模型 ,在热交换器温度前沿扩展分析和热交换器换热效率评价的基础上 ,建立了保证热交换器效率最高的前提条件〔1〕。
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  相似匹配句对
     condition and implement the p.
     条件及 p.
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     V.conditions.
     V条件.
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  corditions
In this paper, necessary corditions are obtained for an optimal control problem whose state variables are given in terms of integral equations.
      


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...

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 and...

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.

In this paper some cases of optimum control are studied when the conditions at the ends of trajectories are constrainted. The boundary conditions of the system of the differential equations (19), (22), etc. are determined; the formulae of functional variation (20) are derived; and the sufficient conditions of optimality and necessary conditions in some cases are proved.

当軌线末端受有条件限制时,将使最优控制系統有关的微分方程的边界条件变得复杂。本文考虑了各种受限情形,提出了确定边界条件的方法,得到泛函改变量公式,討論了控制最优性的充分条件以及在某些情形下的必要条件

 
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