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  conditions
     The proper synthesis conditions were reaction temperature 40 ℃,reaction time 90 min,n(C_6H_(10))∶n(H_2O_2)=2.5∶1(based on 0.08 mol H_2O_2),catalyst 0.6 g and solvent 1,2-dichloroethane 70 mL.
     获得的较佳合成条件(以0.08 mol H2O2计)为:反应温度40℃,反应时间90 m in,催化剂用量0.6 g,n(C6H10)∶n(H2O2)=2.5∶1,溶剂1,2-二氯乙烷70 mL。
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     COD was lowered by 76% to 987 mg l-1 and NH4+-N by 6.3% to 1997 mg l-1 using Fenton Oxidation at optimized conditions of hydrogen peroxide (H2O2) concentration of 3500 mg l-1, Fe2+ dosage of 437.5 mg l-1, pH 4, a mass ratio of 8 for H2O2: Fe2+ dosage and reaction time of 30 minutes.
     对于Fenton氧化法,在最佳反应条件(H2O2浓度为3500 mg l-1,Fe2+浓度为437.5 mg l-1,pH值为4,H2O2与Fe2+质量比为8,反应时间为30min)下,NH+4-N和COD的去除率分别为76%和6.3%,浓度分别降为987 mg l-1和1997 mg l-1。
短句来源
     2. Let X be a connected T_1-space, then X has most variability set if and only if there exist closed sets H_1, H_2, H_3, with following conditions:(i)The interior of H_i is nonempty for cach i j=1, 2, 3.(ii)j=1, 2, 3. (iii)H_3 is resolvable.
     2.设X是一个连通T_1一空间,则X有最大可变性集合当且仅当X中存在闭集H_1,H_2,H_3,它们满足下列条件:(i)H_i有非空内部,i=1,2,3.(ii)H_i∩H_j~o=,i≠j,i,j=1,2,3.(iii)H_3是可解的。
短句来源
     The feasible reaction conditions were as follows:hydrolysis,(50°C),5% NaOH,3.5 h,10% of H_2O_2;
     比较适宜的反应条件(反应温度,氢氧化钠浓度,反应时间)水解反应:50°C,5%,3.5 h,H2O2浓度为10%;
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     A linear calibration curve of the decrease of P_1 is obtained in Tb~(3+) concentration range from 1.0×10~(-6)M to 1.0×10~(-5) M under the optimum conditions of pH4.0~4.5, 0.1M NaClO_4-8×10~(-5) M Ox.
     在最佳实验条件(pH4.0~4.5,0.1MNaClO_4-8.0×10~(-5)MOx)下,Tb~(3+)在1.0×10~(-6)~1.0×10~(-5)M范围内与P_1的降低有线性关系;
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  “条件(”译为未确定词的双语例句
     On the Existnce of Exact N Limit Cycles for the Liénard's Type Differential Equation
     关于Liénard型方程极限环个数的唯n性条件(Ⅱ)
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     ON A SUFFICIENT CONDITION FOR REDUCIBILITY OF A PRINCIPAL SERIES REPRESENTATION OF THE GROUP F_4~2
     群F_4~2的主叙列表示的可约性的充分条件(英文)
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     The Resolution of BCK-algebras with the Condition (S)
     具有条件(S)的BCK-代数的分解
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     Study on Accelerated Factor and Conditionfor Constant Failure Mechanism(Ⅰ)—The Case for Lifetime is a Random Variable
     论加速系数与失效机理不变的条件(Ⅰ)─—寿命型随机变量的情况
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     BCk-algebras with Conedition(H) and,Its Properties
     具有条件(H)的BCK—代数及其性质
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     condition and implement the p.
     条件及 p.
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     V.conditions.
     V条件.
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     Therein A Let Z be a Banach space, / 6 C(X. R) , satisfying the P. S. condition, Cbe the unique critical value of / in [c, b] C R suppose that all the comsected component of K, are isolated points.
     S. 条件,c是f在[c,b](?)
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     f(x), is given.
     f(x)的条件
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  conditions
As a consequence, the action is linearizable if certain topological conditions are satisfied.
      
An algebraicG-varietyX is called "wonderful", if the following conditions are satisfied:X is (connected) smooth and complete;X containsr irreducible smoothG-invariant divisors having a non void transversal intersection;G has 2r orbits inX.
      
Here we provide certain conditions (more general than those in [Ka1]) which guarantee preservation of the topology under a modification.
      
We express the vanishing conditions satisfied by the correlation functions of Drinfeld currents of quantum affine algebras, imposed by the quantum Serre relations.
      
We discuss the relation of these vanishing conditions with a shuffle algebra description of the algebra of Drinfeld currents.
      
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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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