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前趋
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  predecessor
     We discuss the case that are parallel chain-type (i.e.,where every job has at most one direct predecessor and at most one direct successor), which is denoted by 1\chains, B\Cmax.
     即平行链约束,也就是每个工件至多有一个前趋和一个后继,即问题1|chains,B|C_(max)。 我们分别讨论了该问题的各种情形的多项式算法。
短句来源
     The supply and demand of the route guidance information in vehicle navigation system are analyzed. The problem of dynamic K shortest paths is derived and the model for estimating dynamic traveling time on segment is deduced. At last the improved A * algorithm for dynamic shortest path and reasonable predecessor replaced algorithm for dynamic K shortest patehs based on GIS is put forward.
     在对车辆导航系统的路径引导信息进行供需分析的基础上 ,提炼出了对系统设计具有重要意义的动态 K最短路问题 ,建立了路段动态行程时间计算模型 ,提出了将其融入最短路算法中并结合 GIS技术的动态最短路改进 A*算法 ,并设计了通过替换动态最短路的部分路段以搜索动态K最短路的合理前趋替换算法。
短句来源
     Based on the Dijkstra algorithm,some peculiar data structures(such as the table of predecessor nodes)have been used.
     在Dijkstra算法的基础上,该算法使用了一些独特的数据结构(如:前趋表和最短路径表);
短句来源
     In this article, the author gives a new signification of ltag and rtag in node structure of threaded binary trees and discusses new signification bring on node successor of preorder and node predecessor of postorder and preorder traversal algorithm new effect.
     给出了线索二叉树结点结构中ltag和rtag域新的涵义,讨论了新涵义对求先序后继结点算法、后序前趋结点算法以及求先序遍历算法带来的效果.
短句来源
     the primary products include C_3ASH_4, hemicrystalline C-S-H(1), predecessor of Ca_6\[Si_6O_(17)\](OH)_2,and Al_2SiO_5 when the autoclave schedule is 10 h.
     恒温10h时,纳米粉体的主要产物为水化石榴石、半结晶态的C-S-H(1)、硬硅钙石的前趋物以及Al2SiO5。
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  “前趋”译为未确定词的双语例句
     genetic algorithm is used for scheduling in the multiprocessor system,and a scheduling algorithm is described to suit arbitrary number of tasks,unequal task processing time,arbitrary precedence relation among tasks and arbitrary number of parallel processor,so that the schedule length will be minimized;
     本章使用遗传算法作为实现多处理器调度的工具,提出了一种新的任务调度算法,该算法主要是为了解决在任务数任意、任务计算时间不相等、任务前趋关系任意、以及任务间存在通信和考虑任务存贮器要求的情况下,如何优化任务在各个处理器上的分配和执行顺序,使得多处理器系统总的执行时间最小;
短句来源
     This dissertation focuses mainly on task mechanism based on constraint model, which is implemented in Cooperative Template Modeling (CoTM) system, transformation from constraint model to task model as well as task control flow. Furthermore, it introduces some key technologies such as task precedence graph and parallel-serial driving mode.
     本文介绍了协同模板建模系统(CoTM),在此基础上展开基于约束模型的任务机制研究,重点分析了约束模型向任务模型的转换及任务控制流程,并引入了任务前趋图、串并行驱动模式等关键技术作为系统应用和研究的支撑,不仅为CoTM系统的建立提供了技术支持,同时为协同模板设计机理的研究奠定了理论基础。
短句来源
     The conception of anterior model is put forward, and the special emphasis to composition and memory of model base is given.
     提出前趋模型的概念 ,重点讨论了模型库的组织与存储
短句来源
     At the same time, the set of irreducible predecessors of module in preprojective components is finite and rad∞(·,X)=0.
     还证明了预投射分支中模的既约前趋的个数是有限的,且有rad∞(·,X)=0,其中X为此分支中的模.
短句来源
     This algorithm is optimal when the precedence graph G of (T, <) is of arbitrary structure, the execution time {TTTi} of each task is arbitrary valued, and the number of processors m≥2. The implementation of this, algorithm is presented and the schedule experiment is studied.
     此算法在任务系统(T,<)的前趋图G为任意结构、各任务的执行时间{τ_i}为任意位、处理机数m≥2时,都能够产生最佳调度. 文中给出了算法的实现,并进行了调度实验研究.
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  相似匹配句对
     The Generation of Assembly Precedence Constraint Based on Knowledge
     基于知识的装配前趋约束图的生成
短句来源
     A New Algorithm Solution to the Shortest Path Problem of Weighting Directed Graph-Method of Forward Graph
     赋权有向图最短路问题的新解法——前趋
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  predecessor
However, in the microbial world that has existed on earth for about 4 billion years, no common predecessor has been found.
      
According to this concept, a predecessor of living beings has to be sufficiently simple to allow its self-assembly during a geologically short time period.
      
In addition, the predecessor has to possess autocatalytic properties, and an ability for further complication (evolution).
      
Several meta-analyses have demonstrated the superiority of drug-eluting stents (DES) in reducing the incidence of restenosis, target vessel revascularization and target lesion revascularization compared to their predecessor, the bare-metal stent.
      
The Southeast Asian Journal of Social Science (SEAJSS) had a predecessor in the form of a student journal, published irregularly in the early 1970s.
      
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This paper presents the improved Branch-and-Bound schedule algorithm for dependent tasks in multiprocessor. The strategy of highest-level-first with estimated times greatly reduces the tentative number of Branch-and-Bound algorithm. This algorithm is optimal when the precedence graph G of (T, <) is of arbitrary structure, the execution time {TTTi} of each task is arbitrary valued, and the number of processors m≥2. The implementation of this, algorithm is presented and the schedule experiment is studied.

本文提出一种多处理机系统中相关任务的最佳调度算法,即改进型的分枝定界调度算法.算法所采用的最高位级优先的估时策略,大大减少了分枝定界算法的试探次数.此算法在任务系统(T,<)的前趋图G为任意结构、各任务的执行时间{τ_i}为任意位、处理机数m≥2时,都能够产生最佳调度.文中给出了算法的实现,并进行了调度实验研究.

The effect of translational kinetic energy E_k on the activated chemisorption ofCH_4 on Ni (polycrystal) surface and La film has been investigated using supersonicmolecular beam technique. No dissociative adsorption was observed for CH_4/Ni systemwhen E_k≤58. 5 kJ·mol~(-1) and for CH_4/La system when E_k≤52. 3 kJ·mol~(-1). Abovethese threshold values, the initial sticking probability s_0 increases linearly from 0 to0.54 for CH_4/Ni system as E_k increases from 58. 5 to 63.8 kJ·mol~(-1) and from 0 to0.49 for...

The effect of translational kinetic energy E_k on the activated chemisorption ofCH_4 on Ni (polycrystal) surface and La film has been investigated using supersonicmolecular beam technique. No dissociative adsorption was observed for CH_4/Ni systemwhen E_k≤58. 5 kJ·mol~(-1) and for CH_4/La system when E_k≤52. 3 kJ·mol~(-1). Abovethese threshold values, the initial sticking probability s_0 increases linearly from 0 to0.54 for CH_4/Ni system as E_k increases from 58. 5 to 63.8 kJ·mol~(-1) and from 0 to0.49 for CH_4/La system as E_k increases from 52. 3 to 63. 8 kJ·mol~(-1). These resultsindicate that a rather direct chemisorption process, rather than a classical precursormechanism proceeds in these systems. Finally the apparent activation energies obtainedare 46.8 kJ·mol~(-1) and 38. 1 kJ·mol~(-1) for CH_4/Ni and CH_4/La systems respectively.

利用分子束技术改变甲烷的平动能E_k来研究E_k及其法向分量E_n对甲烷在Ni表面及La薄膜上激活解离吸附的影响。对CH_4/Ni及CH_4/La系统,当甲烷的平动能E_k分别低于58.5kJ·mol~(-1)及52.3kJ·mol~(-1)时,没观察到甲烷的解离吸附。当甲烷的平动能超过此阈值时,即对CH_4/Ni系统,当Ek=58.5增至63.8kJ·mol~(-1)时,初始沾着几率s_0由0至0.54线性增加;对CH_4/La系统,当E_k=52.3增至63.8kJ·mol~(-1)时,S_0由0至0.49线性增加。这些结果表明,两个系统的化学吸附是不经过前趋态的直接化学吸附。最后求出CH_4/Ni,CH_4/La系统的表观活化能分别为46.8kJ·mol~(-1)和38.1kJ·mol~(-1)。

In this paper,an algorithm for recognizing and understanding dimensions in engineering drawings is presented. The dimensions are classified into 27 patterns and 48 subpatterns according to the national standard GB445884 of P.R.China.The concept and algorithm of arrowhead-match is presented.Both 9 arrowhead-match patterns and 15 pre-analyzing patterns for arrowheadmatch are summarized. A web grammar based on 9 arrowhead-match patterns is used to describe dimensions,and a specific deterministic finite automation(DFA)corresponding...

In this paper,an algorithm for recognizing and understanding dimensions in engineering drawings is presented. The dimensions are classified into 27 patterns and 48 subpatterns according to the national standard GB445884 of P.R.China.The concept and algorithm of arrowhead-match is presented.Both 9 arrowhead-match patterns and 15 pre-analyzing patterns for arrowheadmatch are summarized. A web grammar based on 9 arrowhead-match patterns is used to describe dimensions,and a specific deterministic finite automation(DFA)corresponding to this web grammar is given.

本文提出了一个识别与理解工程图尺寸标注的算法.根据国标GB4458-84的规定,尺寸标注可分为27种模式和48种子模式.本文提出了箭头匹配的概念,总结了9种箭头匹配模式和15种箭头匹配的前趋分析模式.一个基于9种箭头匹配模式的网状文法被用于描述尺寸标注,文中给出了与之相对应的有限确定自动机DFA及尺寸标注识别的实例.

 
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