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random direction
相关语句
  随机方向
     In order to provide an experimental evidence for the controversial polarization mechanism of the beam-foil ions, He+ ions with energy of 1 MeV have been used to pass through a single crystal gold foil along the 〈110〉direction, and random direction, and the Stokces parameters of Hell 4686 (?) 4f→3d transition have been accurately measured.
     使用能量为1MeV的He~+离子沿〈110〉晶轴方向和随机方向穿透单晶金箔,对He~+的4f→3d跃迁的4686A光的Stokes参数进行了精细的测量,为有争议的束箔离子的极化机制提供了实验依据。
短句来源
     Tolerance Approximation and Random Direction Search Method
     容差逼近随机方向搜索法
短句来源
     The spring is designed by use of the smallest volume of pressure spring of viscose fiber opener as the aim of the optimum design,and the wire diameter d,the mean diameter D 2 and the working circle n as the design variables,and use the method of restrained random direction exploration of restrained surpassed direct solutions to design the optimum spring,And the results of optimum design are; d=10 mm,D 2=52 mm,n=10 round.
     在设计中以粘胶纤维开棉机弹簧体积最小作为最优化设计目标,以弹簧钢丝直径 d、弹簧中径 D2 及弹簧工作圈数 n 为设计变量,采用约束最优化方法直接解法中约束随机方向探索法对弹簧进行最优化设计,最优设计的结果:d = 10 m m , D2 = 52 m m ,n= 10 圈。
短句来源
     Study on Improved Algorithm of Random Direction Mobility Modeling in High-dynamic Environment
     适于高动态环境下的随机方向移动模型改进算法研究
短句来源
     With probability characteristics of the basic random variables known,reliability optimization design of torsion bar has been done with the random perturbation method and the constraint random direction method. Reliability optimization design can be done directly with aid of the computer software,and information about design can be obtained quickly and exactly.
     在基本随机变量的概率特性已知的情况下,应用随机摄动法和约束随机方向法对扭杆进行可靠性优化设计,通过计算机程序可以直接实现扭杆可靠性优化设计,迅速准确地得到扭杆的可靠性优化设计信息。
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  随机方位
     Research on Modeling of Boxlike Based on "Ordered Move In in Random Direction" in CAPP
     CAPP中基于随机方位层次表达法的箱体零件建模
短句来源
     In this paper, a method called "Ordered Move in in Random Direction" is proposed to describe form feature's location is proposed in which is CAPP_oriented modelling of boxlike parts under the environment of single part / small batch prodution employing traditional(non NC) machine tools.
     针对箱体类零件单件小批量生产的计算机辅助工艺规程编制,在分析现有零件建模方法的基础上,提出了基于随机方位层次表达的零件建模方法。
短句来源
  “random direction”译为未确定词的双语例句
     Research on Node Space Probabilistic Distribution According to Random Direction Mobility Model in Ad Hoc Network
     自组网Random Direction移动模型点空间概率分布的研究
短句来源
     The image in Random direction can be rendered by the formula.
     任意方向的视图都可以使用这个公式直接从参考图像里无失真地投影出来
短句来源
     The destructive form of SMC bending strength is analysed in this paper. The different destructive forms are explained by the distributions of fiber in transverse, longitudinal, random direction. It is pointed that there is relation between destructive form and sample strength.
     本文对SMC弯曲强度的破坏形式作了分析,用横向、纵向及随机向纤维的分布类型解释了各种破坏形式,指出破坏形式与强度之间存在着联系,最后用SMC的强度估算公式作了估算,并将估算结果与不同破坏形式的试样强度作了比较,得出不同破坏形式有不同等级的强度。
     Of all the mobile models, the Random Direction Mobile Model has been widely used.
     由于Random Direction本身固有的缺陷,存在边界现象。
短句来源
     Second, this paper uses Matlab to compare the trail data and theoretical data of probability density in Random Direction Mobile Model, and uses OPNET to compare the routing protocols in Random Waypoint Mobile Model.
     对Random Waypoint下的路由协议性能分析则采用了OPNET对节点移动模型进行了仿真研究。
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  random direction
A random direction algorithm for an intersection problem
      
A number of mobility models is considered ranging from the classical Random Direction model to the Virtual World model based on the mobility measurements of a multi-player game.
      
We determine the time until crossing an exit point from a circular cell by choosing a random direction from the starting point to an exit point.
      
When the two speeds were equal, the magnitude of the advantage of choosing the optimum direction over a random direction was close to 50% with a small dependence on the shape of the active space.
      
Autosomal sex-limited alleles should not result in directional sex-ratio distortions in large populations or across many replicates, but may lead to distortions of random direction in some small populations.
      
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Where difficulty has been encountered in obtaining good reflections, it has become almost a general practice to use a group of seismometers insteads of a single seismometer in a channel. One of the primary advantages in such a method is to increase the ratio of useful to extraneous energy recorded in seismogram. If the seismometers are too near to each other, benefit is seldom obtained, because all seismometers in a channel might be considered to be placed at a single point and multiple detection is only a method...

Where difficulty has been encountered in obtaining good reflections, it has become almost a general practice to use a group of seismometers insteads of a single seismometer in a channel. One of the primary advantages in such a method is to increase the ratio of useful to extraneous energy recorded in seismogram. If the seismometers are too near to each other, benefit is seldom obtained, because all seismometers in a channel might be considered to be placed at a single point and multiple detection is only a method of increasing the amplitude both of useful and of extraneous energy. As the separation of seismometers becomes large enough, microseism can be assumed as a random noise, the signal to noise ratio will be increased n~(1/2) times by using multiple detection, when the effective waves strike the seismometers fairly well in phase. But where reflected waves from strong dipping or shallow beds are involved, the discriminatory powers of seismometers might defeat its purpose unless the seismometers in each group are closely spaced. Assuming microseisms to be plane waves traveling to the earth surface from random directions, the problem of how far the detection can be improved when the seismometers in a single group are closely spaced is studied in detail. It is shown that the relative amplitude of microseisms in the records depends statistically not only on the numeber of seismometers in a single group, but also on distances between them, the microseismic frequency spectra and the elastic velocity in the medium. The result obtained in this paper can be used as a guide for choosing multiple seismometer confiquration in seismic field operation.

地震勘探組合法中,采用很小的組內检波器間距离吋,組合法仅只起提高接收仪器灵敏度的作用;检波器間距較大情况下,微震干扰可以看作相互独立的随机干扰来研究;但在間距不太大但也不能认为等于零时,組合方法的效果却是个尚待討論的問題。本文假定微震是由传播方向随机改变的平面波形成的,用概率論方法討論了組合地震法对徽震干扰的压制效果。

This article presents the optimum correction factors for spur gearing for maximum possible increase of loadcarrying capacity in resistance to seizing. The aim is to make the temperature at the surface of gears as low as possible. The objective funcitons minimized are obtained on the basis of the Blok's "Flash Temperature Theory" and the "Integrate Temperature Theory" respectively by reforming the formulas given in the reference〔1〕.The feasible correction factor region is constrained by the limitation of contact...

This article presents the optimum correction factors for spur gearing for maximum possible increase of loadcarrying capacity in resistance to seizing. The aim is to make the temperature at the surface of gears as low as possible. The objective funcitons minimized are obtained on the basis of the Blok's "Flash Temperature Theory" and the "Integrate Temperature Theory" respectively by reforming the formulas given in the reference〔1〕.The feasible correction factor region is constrained by the limitation of contact ratio, the limitation of no under-cutting as well as the limiting values for reducing the tooth thickness on the addendum circle, etc. The optimum technique presented in the paper is the "Random Direction Method". The optimum correction factors (the angular and the height correction factors) are given out in the tables. They may be recom- mended in design practice. After analysing the results obtained on the basis of the two theories respectively, we consider it is more reasonable to apply the "Flash Temperature Theory" in design practice.

本文提出了直齿圆柱齿轮传动具有最大抗胶合承载能力的最佳变位系数。目标是使齿面温度最低。最小化目标函数根据勃洛克的“闪温理论”及“积分温度理论”,把〔1〕中有关公式加以改造后得到。可行的变位系数区域受重迭系数、不根切及齿顶齿厚变尖等条件的约束。本文采用的优化方法为“随机方向法”。文中提供了最佳变位系数(角变位及高变位系数)的表格。这些表格可供设计使用。根据对由这两种理论得到的计算结果的分析,提出了在实际设计中采用“闪温理论”较为合理的见解。

In order to provide an experimental evidence for the controversial polarization mechanism of the beam-foil ions, He+ ions with energy of 1 MeV have been used to pass through a single crystal gold foil along the 〈110〉direction, and random direction, and the Stokces parameters of Hell 4686 (?) 4f→3d transition have been accurately measured.

使用能量为1MeV的He~+离子沿〈110〉晶轴方向和随机方向穿透单晶金箔,对He~+的4f→3d跃迁的4686A光的Stokes参数进行了精细的测量,为有争议的束箔离子的极化机制提供了实验依据。

 
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