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redundant     
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  冗余
     Study on Differential Geometry Theory of Singularities of Parallel Manipulators and Redundant Parallel Manipulators
     并联机构奇异位形的微分几何理论以及冗余并联机构的研究
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     STUDY ON NETWORK ANALYTICAL METHOD FOR PREDICTING RELIABILITY OF REDUNDANT SYSTEMS
     冗余系统可靠度预测的网络分析法研究
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     THE SOLUTION OF NONLINEAR REDUNDANT EQUATIONS
     非线性冗余方程的求解
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     Calculation of Failure Probability in Redundant Structure under Combined Random Loads
     随机组合力下冗余结构的故障概率计算
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     Failure Analysis in Redundant Truss Structures
     冗余桁架结构的故障分析
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  冗余度
     Trajectory Control of Redundant TT-VGT Manipulators Based on TMS320F206 DSP
     基于TMS320F206 DSP的冗余度TT-VGT机器人的轨迹控制
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     Experiment Platform Design of a 4R Redundant Robot Based on Modular Robot PowerCube
     基于PowerCube的4R冗余度机器人实验平台设计
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     The Kinematic Analysis of the YJP-1 Redundant Robot
     YJP-1型双臂冗余度机器人的运动学分析
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     Analysis of Fault Tolerant Workspace of a Spatial 4R Redundant Manipulator
     空间4R冗余度机械臂容错空间分析
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     Redundant Robots Control System Based on PMAC
     基于PMAC的冗余度机器人控制系统
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  冗余的
     In comparison with the Apriori algorithm,with the QCL,the frequent item sets need not be calculated,then a great many of redundant association rules are reduced,and the efficiency of association rules mining is improved.
     利用量化概念格挖掘关联规则,与采用Apriori算法计算频繁项目集获取关联规则相比较,不需要计算频繁项目集,容易获得用户感兴趣的关联规则,同时减少了大量冗余的规则,提高了挖掘效率。
短句来源
     Because XML (extensible markup language) is self-described, there is much redundant structural information in XML data stream.
     由于XML(extensible markup language)本身是自描述的,所以XML数据流中存在大量冗余的结构信息.
短句来源
     An important part of designing the next generation QoS network concerns its reliability, which can be provided through fault management mechanisms, applied at different MPLS and the extended Generalized MPLS (GMPLS) provide fast mechanisms for recovery from failures by establishing redundant Label Switch Paths as backup paths.
     因此设计下一代的QoS网络一个比较重要的部分就是要保证它的可靠性,可靠性能够被贯穿到管理机制,应用到不同的网络级别。 网络的可靠性已经成为IP网的一个重要问题,目前关于IP网可靠性的讨论集中在MPLS/GMPLS的故障恢复机制方面,MPLS和GMPLS能够通过把冗余的LSPs确立为备份路径来提供快速的故障恢复。
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     Multiple source images from various sensors can provide either complementary or redundant information.
     来自多个传感器的多源图像能够提供互补或冗余的信息。
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     The paper also discusses safety solution, synchronization and redundant information transmission methods of the system.
     作为一个保密性、安全性、实时性要求都较高的控制系统,本文还阐述了系统的安全性方案,系统的同步技术以及系统冗余的信息传输方式。
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  多余的
     This method sufficiently thinks correlative attribute's influences and availably reduces unreasonable and redundant partition.
     使用这种方法能够充分考虑各个连续值属性之间的影响,可以有效地减少不合理和多余的划分点。
短句来源
     In particular, we show that the Newman-Penrose equations are redundant, and six of these equations can be omitted.
     特别是证明了在Newman-Penrose方程中有六个多余的方程。
短句来源
     Growing sweet corn in summer could absorb redundant nutritional ingredients largely in the soil,but the number of fungi was high and the ratio of B/F is not obvious compared with CK.
     夏季休闲期间种植甜玉米可大量吸收土壤中多余的营养成分,但真菌数量偏高,B/F值与对照相比相差不大;
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     Under C:\Windows catalogue some redundant files often occur, in the light of the features of the occurrence of these files, this paper introduces th e deleting method.
     在C:\Windows目录下经常会出现一些多余的文件,针对这些文件产生的特点,简要介绍了删除的方法。
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     An improved computing pool model for grid computing is proposed. In the model,user task is accomplished by more than one computer simultaneously for given rules when there are redundant computing resources.
     目前网格在应用中,常用网格计算池模型的方式,针对传统分布式网格模型和单一资源服务网格计算池模型所存在的缺点,提出了一种改进的基于服务等级的网格计算池模型,其基本思想是当“计算池”中有多余的空闲计算资源时,按照服务等级的思想,为用户分配多台计算机为其服务。
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      redundant
    The least redundancy coverage strategy (LRCS) strategy takes the smallest redundant coverage as the criterion whose goal is to maximize the lifetime of the sensor network.
          
    Here, for the sake of modeling the HRIRs more truthfully, we consider choosing optimal time-frequency atoms from redundant dictionary to decompose this kind of signals of HRIRs and achieve better results than all the previous models.
          
    This algorithm first filters out redundant attributes by computing the Gini coefficient.
          
    To evaluate the correlation of every two non-redundant attributes, the relation matrix of non-redundant attributes is constructed based on the relation function of two dimensional united Gini coefficients.
          
    This method solves the technically baffling problem in mechanism type synthesis and reduced redundant design scheme, and raises the reliability and the efficiency of the regenerative innovation design of the kinematic chain.
          
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    Many methods of analyzing statically indeterminate structures are now available. The method of redundant forces and that of deformations (i. e. the slope-deflection method), heretofore generally used in the U. S. S. R., both require the solution of a system of simultaneous simple equations. In the case of multi-storey and multi-bay bents, the large number of such equations would greatly complicate the calculation work, it being both time-consuming and liable to make mistakes. The method of moment distribution...

    Many methods of analyzing statically indeterminate structures are now available. The method of redundant forces and that of deformations (i. e. the slope-deflection method), heretofore generally used in the U. S. S. R., both require the solution of a system of simultaneous simple equations. In the case of multi-storey and multi-bay bents, the large number of such equations would greatly complicate the calculation work, it being both time-consuming and liable to make mistakes. The method of moment distribution simplifies calculations to a great extent, as there is no need to solve simultaneous equations, and therefore it has been warmly received bY practical engineers. Many soviet scholars are also devoted to its study. There are, however, defects in this method, namely: (1) Should the moments obtained in the successive cycles of distribution and carrying-over prove to converge very slowly, twenty or more such cycles must be done if fairly accurate results are expected.(2) In the case of analyzing structures under various conditions of loading, while it is possible to find the influence moments by applying a unit moment at each joint as proposed by Prof. Hardy Cross, it would bequite laborious in the case of multi-storey and multi-bay bents containing a large number of members, especially when subjected to unsymmetrical loadings.For the remedy of the first defect, such Chinese scholars as Profs. Lin Tung Yen, Chao Tsu Wu, Meng Chao Li and Tsai Fang Yin have made much contribution, and the author of this paper has recently written a discussion on the two papers of the last-mentioned scholar. For the remedy of the second defect, the author is unaware of any except that mentioned below.One of the soviet scholars, Dr. P. P. Shaggin (i.e.) has suggested important improvements with regard to both these defects. For the former, he adopted a method of single-cycle distribution; and for the latter, he invented the method of successive conjugation which greatly reduces the work of calculation in finding the influence moments. The essence of these methods is well-worth studying on the part of our Chinese engineers. After an intensive study, the author of this paper thinks that, while Dr. Shaggin's methods are quite correct in principle, his methods of calculation can still be somewhat improved, as described herein, so as to be made more easily applied in practice.This paper Shaggin based upon the book, (Calculation of Multi-storey Frames by the Method of Successive Conjugation) published in 1954 by Dr. P. P. Shaggin in Leningrad, U. S. S. R., shows that, in applying a unit moment at each joint of a given statically indeterminate structure, one can easily find the influence moments at the ends of all the members, and that, after multiplying the unbalanced fixed-end moments at each joint calculated in accordance with the given external loads, by the respective influence moments, the sum of such products added to the original fixed-end moments will give at once the actual moments at each end of the members in the structure.Three notable improvements are indicated in this paper:(1) Dr. Shaggin's formula (5") on page 11 of his book, has been altered to formulas (3) in this paper. (2) For multi-storey bents, Dr. Shaggin's method of finding the conjugate moments (i. e. the influence moments) by formulas is replaced by the usual method of simple moment-distribution.(3) The author of the paper has extended the method to the analysis of multi-storey and multi-bay bents under any system of unsymmetrical loading.Of course, for structures under a single system of loading, influence moments need not be found and, generally speaking, it would be more convenient to apply the original method of moment-distribution; for a multi-storey bent, it would be better, even in this case, to modify it by applying the method of successive conjugation.The author is of the opinion that the application of the methods described in this paper, being convenient and time-saving, would be useful to the practical engineers.

    本文以蘇聯學者沙金博士最近出版之“用逐次互聯法計算多層排架”一書为依據,叙述在已知超靜定結構中每一結點,施以單位力矩,可以很容易地求得各桿端的影響力矩;然後依照其所受外力荷載,求得各結点處的定端力矩,分別乘以相當的影響力矩,相加之後並加以原有的定端力矩,即得各該桿端的實際力矩。若結構承受多種多样的荷載(不問其為豎向的或平向的、對稱的或不對稱的),用此篇所述之方法以推算各桿端力矩,著者認為最便利、最省時,並且適合實際工作者之需要。

    The analysis of rigid frames with so called "span-change" beams such as curved, gabled, folded or trussed ones is rather difficult. The method of redundant forces or method of slope deflection are too tedious to be used in practical work. In this paper a new method namely the method of propagating unbalanced moments and lateral forces is proposed for analyzing such frames.The principle of this method is some what like that of the one cycle method of moment distribution for analyzing rigid frames with straight...

    The analysis of rigid frames with so called "span-change" beams such as curved, gabled, folded or trussed ones is rather difficult. The method of redundant forces or method of slope deflection are too tedious to be used in practical work. In this paper a new method namely the method of propagating unbalanced moments and lateral forces is proposed for analyzing such frames.The principle of this method is some what like that of the one cycle method of moment distribution for analyzing rigid frames with straight beams and its procedure may be briefly described as follows: the unbalanced moments and lateral forces at all joints of the frame are calculated first and propagated successively to all the other joints by means of a set of the so-called constants of deformation-propagation, which are to be computed from the properties of the frame only. Then its original and various propagated unbalanced moments and lateral forces at each joint are summed up and distributed among all the bar-ends at that joint according to special formulas to obtain the distributed moment and lateral force at each bar-end. Finally, the balanced moment and lateral force at each bar-end are obtained simply by summing up the following three components respectively: (1) those at each bar-end assumed fixed, M~F and H~F; (2) those propagated to each bar-end, M~P and H~P; and (3) those distributed to each bar-end, M~D and H~D. That is:M=M~F+M~P+M~D, H=H~F+H~P+H~D.Evidently, the procedure of this method is very simple and direct, and the work of calculations is greatly reduced, especially when any span-change rigid frame is to be analyzed for many loading conditions.Two typical examples are given in this paper to illustrate the application of the method and the author hopes deeply that this method will be found usefull by the structural engineers in designing such rigid frames.

    凡具有曲梁、山牆式梁、摺式梁、门式梁、桁架梁或其他“跨变”横梁之剛構均可称为“跨变剛構”。跨变剛構常为高次的超靜定結構,其应力分析至为复杂。採用冗力法、最少功法或角变位移法以分析此类刚構,常嫌过繁,当结構受有多种荷載情形时,更需作多次計算,尤覺繁不堪言,頗不为实际工作者所乐用。著者於本文發表一不均衡力矩及侧力傳播法以分析此类剛構。無論剛構本身以及單个的跨变横梁是否对称,也不論組成剛構的各个桿件为等截面或为变截面,本法均可适用,因此本法之实用范圍可称广泛。 本法之基本观念可簡單描述如次:首先將作用於各結点的不均衡力矩及側力,傳播至所有其他結点之桿端,求得每一結点的不均衡力矩及侧力的总值,然后經过一次分配則可得出該結点桿端之分配力矩及分配侧力。計算所需之最終桿端力矩及侧力即为a)定端力矩或側力,b)傳播力矩或侧力,以及c)分配力矩或側力三者之和。 本法之性质属于一次分配法之范疇,共精神与我国結構学者蔡方蔭先生所得分析直桿剛構之“不均衡力矩傳播法”甚为相似,如果跨变横梁变为直桿,則本法所得計算公式即簡化而成蔡氏所得之公式。 文中举二算例,以明本法之应用。 著者認为採用此法以分析跨变剛构,不仅計算可趋精簡,且当結構承...

    凡具有曲梁、山牆式梁、摺式梁、门式梁、桁架梁或其他“跨变”横梁之剛構均可称为“跨变剛構”。跨变剛構常为高次的超靜定結構,其应力分析至为复杂。採用冗力法、最少功法或角变位移法以分析此类刚構,常嫌过繁,当结構受有多种荷載情形时,更需作多次計算,尤覺繁不堪言,頗不为实际工作者所乐用。著者於本文發表一不均衡力矩及侧力傳播法以分析此类剛構。無論剛構本身以及單个的跨变横梁是否对称,也不論組成剛構的各个桿件为等截面或为变截面,本法均可适用,因此本法之实用范圍可称广泛。 本法之基本观念可簡單描述如次:首先將作用於各結点的不均衡力矩及側力,傳播至所有其他結点之桿端,求得每一結点的不均衡力矩及侧力的总值,然后經过一次分配則可得出該結点桿端之分配力矩及分配侧力。計算所需之最終桿端力矩及侧力即为a)定端力矩或側力,b)傳播力矩或侧力,以及c)分配力矩或側力三者之和。 本法之性质属于一次分配法之范疇,共精神与我国結構学者蔡方蔭先生所得分析直桿剛構之“不均衡力矩傳播法”甚为相似,如果跨变横梁变为直桿,則本法所得計算公式即簡化而成蔡氏所得之公式。 文中举二算例,以明本法之应用。 著者認为採用此法以分析跨变剛构,不仅計算可趋精簡,且当結構承受多种荷載情形时,尤其具有显明?

    Two methods for analyzing caisson-beams are introduced in this paper.One is the well-known method of redundant forces. The author has simplified this methed by using couples of redundant forces to set up a typical equation and pointing out the rule that the matrix of the coefficients of simultaneous linear equations which are organized from the expansion of that typical equation. This method can be easily solvd when the number of unknown redundant forces, or that of equations, is less than...

    Two methods for analyzing caisson-beams are introduced in this paper.One is the well-known method of redundant forces. The author has simplified this methed by using couples of redundant forces to set up a typical equation and pointing out the rule that the matrix of the coefficients of simultaneous linear equations which are organized from the expansion of that typical equation. This method can be easily solvd when the number of unknown redundant forces, or that of equations, is less than 3 or 4; but it will be difficult when the number is more than that. In order to solve this difficulty the author suggests another kind of method of which the essential principle is mentioned in the following.Supposing that the distance between the beams is sufficiently short in comparing with their spans, we can set up a partial differential equation for its deffiection W, as we often do in the theory of elasticity. In this way we can solve it with its boundary conditions of simple supporting by sine series. From this we can easily get the formulas of bending moments, shears and twist moments of each beam by partially differentiating the function of deffiection. The result of the calculation proves that it quite agrees with the method of redundant forces when the distance between beams is no longer than 1/5 of their spans.There are some tables given in this raper for practical use.

    本文介紹了計算井字梁的兩种方法。 第一种方法是按冗力送来計算的。本文利用了成对的未知力以建立冗力法的典型方程,指明了由典型方程所組成的联立方程中其系数排列的規律,从而簡化了建立方程的过程和減少錯誤的机会。冗力法仅在联立方程的数目不多于3至4时是相当方便的,若未知冗力过多,解算过程便異常繁重。为此,笔者提出了下述的第二种方法。 当梁的間距比梁的跨度为一較小的数值时,可应用彈性力学所常用的方法,建立一个关于井字梁撓度曲面的偏微分方程。以符合簡支边界条件的正弦级数求出撓度后,便可依微分关系求出各梁的弯矩、切力及扭矩。鈇摩辛柯在其著作中(見[3]§37)討論向異性板的弯曲时,亦曾附帶地提及本法的可能性。本文給出了全部計算公式及为实用的目的而制訂了各种数表。計算的結果表明当梁間距不大于跨度的1/5时,本法与冗力法的結果相差無几,而本法在应用上的簡便笑为任何方法所不及。

     
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