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 direct 直接(44108)直(2551)指导(2103)
 直接
 Study on the Treatment of Hydrogen Sulfide Waste Gas by the Method of Two-step Direct Electrolysis 直接电解两步法处理硫化氢废气的研究 短句来源 Research on FNNS for Induction Machines Using Direct Torque Control 基于FNNS的感应电机直接转矩控制研究 短句来源 Research of Speed Sensor-less Direct Torque Control Of Induction Machine 异步电机无速度传感器直接转矩控制系统的研究与实践 短句来源 The Study of Fast Direct Volume Rendering Method of CT Image Set Based on Microcomputer 基于微机的CT图像序列快速直接体绘制方法研究 短句来源 Study on Direct Selective Laser Sintering of Ni-Based Metallic Powder and Key Technologies Ni基金属粉末激光直接烧结成形及关键技术研究 短句来源 更多
 直
 Study on Technology of Laser Direct Writing Photolithogrophy 激光直写光刻技术研究 短句来源 THE DECOMPOSITION OF DIRECT PRODUCTS OF IRREDUCIBLE REPRESENTATIONS OF SU_3 SU_3羣不可约表示直乘的分解 短句来源 High-speed Photography of the Combustion in Direct Injection Diesel Engine 直喷式柴油机燃烧的高速摄影 短句来源 A Method for Calculating the Combustion Process of the Direct Injection Diesel and Its Emission NO 直喷式柴油机燃烧及其排放物NO的一种计算方法 短句来源 THE IRREDUCIBLE REPRESENTATIONS AND THEIR OCCUPATION NUMBER IN DIRECT MULTIPLICATION OF IRREDUCIBLE REPRESENTATIONS OF SU_3 GROUP SU_3群不可约表示直乘中的不可约表示及其重数 短句来源 更多
 指导
 Using“QC”method to direct equipment management 用“QC”方法指导设备点检 短句来源 Direct college's health education in a modern viewpoint of "Health 用现代“健康”的观念指导高校健康教育 短句来源 Objective The study was conducted to investigate the performance of direct network reporting of infectious diseases, discuss the methods of online evaluation on the quality of directly reported information, and effectively direct the work of Grassroots units. 目的了解白银市传染病网络直报工作状况,探讨直报信息质量网上评价方法,有效指导基层单位工作。 短句来源 Finally,an integration framework based on project management and Web Services technology was set up to direct correlative enterprises to develop agile product. 最后,给出了基于项目管理监控和Web服务技术的敏捷化产品开发集成框架,以指导相关企业进行敏捷产品开发,达到降低企业装配设计成本,提高快速响应市场变化和客户的多样化要求的目的。 短句来源 An intelligent optimization algorithm was proposed in this paper to direct the control of boiler combustion process. 本文提出用智能优化算法模型来指导工业锅炉燃烧过程控制。 短句来源 更多
 直接的
 A DIRECT CHECK FOR G(1590) AS THE O~(++) GLUEBALL CANDIDATE G(1590)作为0~(++)胶子球候选者的一个直接的检验 短句来源 DIRECT COEFFICIENT MATRIX SPLITTING FOR NUMERICAL COMPUTATION OF TRANSONIC NOZZLE FLOW 直接的矩阵分裂计算跨音速喷管流场 短句来源 An air Conditioning System of Direct Flexible Cold Heat 一种直接的冷、暖同时可供式空调系统 短句来源 Permeability of rocks has direct relations with the size and distribution of pore throat, which is determined through the capillary pressure curve. 岩石的渗透率与孔隙喉道大小及其分布有着直接的关系,而孔隙喉道大小及分布可由毛管压力曲线来确定。 短句来源 These analysis and computation results have direct reference value for nodes and system design of wireless sensor networks. 该文研究结果对于无线传感器网络节点设计和系统设计都具有直接的参考价值。 短句来源 更多

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 direct
 We express them in terms of generatorsEij ofU(gl(n)) and as differential operators on the space of matrices These expressions are a direct generalization of the classical Capelli identities. For a cellA?Wf we consider a full subcategory formed by direct sums of tilting modulesQ(λ) with highest weights. The Direct Summand Property in Modular Invariant Theory The group of direct isometries of the hyperbolic space ${\Bbb H}^n \mbox{is} G=\mbox{SO}_0(n,1).$ This isometric action admits many differentiable compactifications into an action on the closed n-dimensional ball. We show that ${\mathcal M}(G,R)$ is a symmetric tensor category, i.e., the motive of the product of two projective homogeneous G-varieties is a direct sum of twisted motives of projective homogeneous G-varieties. 更多
 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 is a supplement to the author's previous paper "The Constants and Analysis of Rigid Frames", published in the first issue of the Journal. Its purpose is to amplify as well as to improve the method of propagating joint rotations developed, separately and independently, by Dr. Klouěek and Prof. Meng, so that the formulas are applicable to rigid frames with non-prismatic bars and of closed type. The method employs joint propagation factor between two adjacent joints as the basic frame constant and the... This paper is a supplement to the author's previous paper "The Constants and Analysis of Rigid Frames", published in the first issue of the Journal. Its purpose is to amplify as well as to improve the method of propagating joint rotations developed, separately and independently, by Dr. Klouěek and Prof. Meng, so that the formulas are applicable to rigid frames with non-prismatic bars and of closed type. The method employs joint propagation factor between two adjacent joints as the basic frame constant and the sum of modified stiffness of all the bar-ends at a joint as the auxiliary frame constant. The basic frame constants at the left of right ends of all the bars are computed by the consecutive applications of a single formula in a chain manner. The auxiliary frame constant at any joint where it is needed is computed from the basic frame constants at the two ends of any bar connected to the joint, so that its value may be easily checked by computing it from two or more bars connected to the same joint.Although the principle of this method was developed by Dr. Klouěek and Prof. Meng, the formulas presented in this paper for computing the basic and auxiliary frame constants, besides being believed to be original and by no means the mere amplification of those presented by the two predecessors, are of much improved form and more convenient to apply.By the author's formula, the basic frame constants in closed frames of comparatively simple form may be computed in a straight-forward manner without much difficulties, and this is not the case with any other similar methods except Dr. Klouěek's.The case of sidesway is treated as usual by balancing the shears at the tops of all the columns, but special formulas are deduced for comput- ing those column shears directly from joint rotations and sidesway angle without pre-computing the moments at the two ends of all the columns.In the method of propagating unbalanced moments proposed by Mr. Koo I-Ying and improved by the author, the unbalanced moments at all the bar-ends of each joint are first propagated to the bar-ends of all the other joints to obtain the total unbalanced moments at all the bar-ends, and then are distributed at each joint only once to arrive at the balanced moments at all the bar-ends of that joint. Thus the principle of propagating joint rotations with indirect computation of the bar-end moments is ingeneously applied to propagate unbalanced moments with direct computation of the bar-end moments, and, at the same time, without the inconvenient use of two different moment distribution factors as necessary in all the onecycle methods of moment distribution. The basic frame constant employed in this method is the same as that in the method of propagating joint rotations, so that its nearest approximate value at any bar end may be computed at once by the formula deduced by the author. Evidently, this method combines all the main advantages of the methods proposed by Profs.T. Y. Lin and Meng Chao-Li and Dr. Klouěek, and is undoubtedly the most superior one-cycle method of moment distribution yet proposed as far as the author knows.Typical numerical examples are worked out in details to illustrate the applications of the two methods. 本文為著者前文“剛構常數與剛構分析”之補充,其目的在將角變傳播法及不均衡力矩傳播法加以改善,以便實用。此二法均只需一個公式以計算剛構中所有各桿端之基本剛構常數(即任何二相鄰結點间之角變傳播係數),將此項公式與柯勞塞克之公式相比較,藉以指出前者較後者為便於應用,並亦可用之以直接分析較簡單之閉合式剛構,此外補充說明此法中之剛構常數與定點法之關係,剛構有側移時計算各結點角變所需之各項公式亦行求出。不均衡力矩傳播法係顧翼鹰同志最近研究所得者,既係直接以桿端力矩為計算之對象,而且只須採用不均衡力矩分配比將各結點作用於各桿端不均衡力矩之總和,一次分配,即得所求各桿端分配力矩之總值,實係力矩一次分配法之一大改進,著者將顧氏之法加以推廣与改善,使其原則簡明而計算便捷,著者認為此法係將林、柯、孟三氏法之所有優點熔冶於一爐,實可稱為现下最優之力矩一次分配法。最後列舉算例,以說明此二法在實際工作中之應用。 An approximate and rapid method for computing the stresses and shape constartts of elastic arches is presented in this paper. The fundamental idea of this method lies in the fact that the variation of the elastic area (ds/EI) of the arch with respect to x can be represented approximately by an elementary algebraic function which can be determined with but little labor. After this function is found, all necessary computations can be done by direct integration instead of the usual tedious arithmetic summation.... An approximate and rapid method for computing the stresses and shape constartts of elastic arches is presented in this paper. The fundamental idea of this method lies in the fact that the variation of the elastic area (ds/EI) of the arch with respect to x can be represented approximately by an elementary algebraic function which can be determined with but little labor. After this function is found, all necessary computations can be done by direct integration instead of the usual tedious arithmetic summation. Formulas reduced to the final forms are presented for use, and two numerical examples are given to show the practical procedure and the degree of approximation. 本文目的在提出一種求拱應力及拱常数的近似算法。主要關鍵在求出一能近似表示拱截面ds/EI變化之代數式,使各項計算均得由直接積分完成,避免分段計和,因而極爲簡便。最後結果以公式表示,其準確程度巳敷實際需要,必要時可予提高。 << 更多相关文摘
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