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各向同性假设
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  isotropic hypothesis
     The statics intensity criterion of forming scrimber network blank pressed with uniform load is explored under the isotropic hypothesis form horizonal view initially.
     采用横观各向同性假设,对均布载荷辗压方式下,重组木网状坯料的形成静力学强度准则进行了初步探讨。
短句来源
     Based on the analytical method of micromechanics of composite materialmechanics, under the isotropic hypothesis from horizotal view, the analyticalmechanics model of mechanics of materials and elastisity was found. Form thismodel, and synthesized the theory of composite material mechanics.
     以复合材料力学的微观力学分析方法为基础,在横观各向同性假设下,建立了重组木的材料力学与弹性力学分析的力学模型。
短句来源
     Under the isotropic hypothesis from horizonal view in this paper,used the conclusions that the force acts on the boundary of semi-infinite plate body of theory of elasticity and uniform load acts on the cylinder,the rela-tive force formular about the formation of scrimber blank acted by static pressure have been derived and conclusions have been verified through tests.
     在横观各向同性假设条件下.借用弹性力学的半无限平面体边界上受力作用和圆柱体均布载荷作用的结论,导出静压作用下重组木坯料形成的受力关系式,并用试验验证了这些结论。
短句来源
  “各向同性假设”译为未确定词的双语例句
     hree dimensional diffusion at fibrous eutectic growth front has been analyzed in considering the solute distribution anistropy formed by space geometry character. It is shown that the Jackson and Hunt's analysis is a simplified result of the present model.
     修正Jackson和Hunt关于在垂直生长方向截面上溶质扩散各向同性假设,求解三维Laplace方程,获得纤维共晶生长界面前沿三维稳态扩散场,并证明Jackson和Hunt的二维模型是实际生长的二维简化和一阶近似并用了二腈((SCN)-樟脑(CAM)纤维共晶系统计算生长界面前沿溶质分布
短句来源
     The Isotropy and Lorentz Transformation
     各向同性假设与洛仑兹变换
短句来源
     It is very important to stimulate and reflect the anisotropy in the process of study on soil's constitutive relationship. To establish a reasonable anisotropic constitutive model will supply some new methods to solve some practical problem.
     如何正确的在土体本构关系的研究中模拟、反映这种应力各向异性的影响,尝试突破现有传统理论中各向同性假设所带来的实践和理论上的限制,建立能够反映这种特性的土体本构模型,对于土体本构关系的研究具有重要的理论意义,同时对于解决工程实际问题提供新的思路和解决途径,对岩土工程实践有相当的实际意义。
短句来源
     However on the assumption that the layers are isotropic, it appears insufficiency when it needs higher precise exploration.
     然而,在高精度地震勘探的今天,建立在各向同性假设情况下的速度分析已经不能满足勘探要求。
短句来源
     Chapter six coves the suspension control under the nonstationary random excitation based on the road surface model and gives the significant conclusions.
     2、基于各向同性假设、滤波白噪声方法以及高阶时空微分关系、建立了车辆四轮相关路面平稳和非平稳随机输入模型。
短句来源
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  相似匹配句对
     The Isotropy and Lorentz Transformation
     各向同性假设与洛仑兹变换
短句来源
     The earth is considered as isotropic to wave propagation.
     通常假设地球对地震波传播为各向同性体。
短句来源
     Accounting Assumptions
     会计假设
短句来源
     Research hypothesis
     研究假设
短句来源
     ON ISOTROPY OF ROBOT'S FORCE SENSORS
     机器人力传感器的各向同性
短句来源
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  isotropic hypothesis
The effects of thermal radiation and conduction of the global behaviour of weak MHD discontinuities have been studied under a quasi-equilibrium and quasi-isotropic hypothesis of the differential approximation to the radiative heat transfer equation.
      
Assuming "μ = 1" and "m(g) :≠ 0 ?g is a pure Lorentz transformation (without a spatial rotation)", the isotropic hypothesis (m depends on a single parameter out of three inG) is first studied.
      
Expressions for effective elastic properties as a function of the micro-fields for both isotropic and transversally isotropic hypothesis are derived.
      


On the basis of the theory of turbulent diffusion and the assumption of the isotropy of turbulence, the paper analyses the concentration distributions both of the entrained air in the lower two-dimensional high-velocity chute flow and of the entrained water in the upper coexisting air flow. While only integral forms are given for the starting stage of the entrainment, the analysis is carried out in detail for the stage of the entrainment in full development. The result thus obtained for the lower part appears...

On the basis of the theory of turbulent diffusion and the assumption of the isotropy of turbulence, the paper analyses the concentration distributions both of the entrained air in the lower two-dimensional high-velocity chute flow and of the entrained water in the upper coexisting air flow. While only integral forms are given for the starting stage of the entrainment, the analysis is carried out in detail for the stage of the entrainment in full development. The result thus obtained for the lower part appears as a hyperbolic cosine function, which agrees closely with the experimental data given by Straub. The analysis for the upper part, however, leads to an exponential function, which agrees rather poorly with the experiment. Despite this latter discrepaney, the experimental data, when plotted according to the same dimensionless parameters which appear in the analytical result, fall along a smooth curve. The entire analysis is related to the depth and the slope of the water flow, the two mean velocities of the water and the air flow, the fall velocity of water, the rise velocity of air, and the intensity of turbulence.

文中根据在高速水流情况下,紊动为各向同性的假设,应用紊动扩散理论对二元的掺气均匀水流水中含气浓度和水面上气中含水浓度分布进行了分析。给出了极限状态亦即掺气发展为充分情况下的浓度分布无因次分析式;在气中含水部分为指数函数,而在水中含气部分为双曲余弦函数。经与已有试验资料作比较,指明水中含气浓度的分析与试验结果符合。气中含水浓度的分析虽与试验结果有差异,但实际情形为分析中出现的无因次参数的函数。对发展状态的浓度分布仅给出了积分式。全部分析连系到水流的深度、倾斜度、流速、水滴和气泡的下降和上升速度、以及紊动的特性诸因素。

The horizontal distributions of covariance of geopotential height and temperature are extremely inconsistent with the hypothesis of two dimensional isotropy. However, the distributions of correlation in the region on the north of 35°N fairly agree with the hypothesis of isotropy, but it becomes more non-isotropic on the south of 35°N. The isoplethic patterns of correlation around the stations near the mean subtropical jet stream show a ellipses-like figure, their major axes are orientated usually along the jet...

The horizontal distributions of covariance of geopotential height and temperature are extremely inconsistent with the hypothesis of two dimensional isotropy. However, the distributions of correlation in the region on the north of 35°N fairly agree with the hypothesis of isotropy, but it becomes more non-isotropic on the south of 35°N. The isoplethic patterns of correlation around the stations near the mean subtropical jet stream show a ellipses-like figure, their major axes are orientated usually along the jet stream.

本文的目的,在于对东亚地区几种气象标量场的大尺度统计结构特征提供观测事实和描述。文中利用我国二十六个站1958—1960三年的探空资料,计算了500毫巴高度场、700毫巴温度场、露点场以及温度露点差场的方差、协方差、相关函数和结构函数。发现在我国高度场和温度场的协方差函数与二维各向同性假设相差甚远。湿度场的协方差函数在长江下游江淮地区以及夏半年在华北地区近似于各向同性。高度场和温度场的相关函数在35°N以北能较好地满足各向同性假定;在35°N以南,随着纬度的降低各向异性越来越明显;在长江以南相关函数的等值线系统呈椭圆形,长轴的方向和副热带急流的走向相一致。湿度场相关函数等值线系统的水平尺度比温压场的小得多,各向同性假定的适用距离也小得多,但随纬度没有明显变化。最后我们对相关函数和结构函数的观测数据用适当的数学表达式进行了拟合,用列表的形式给出了各种拟合参数。

The transient heat transfer model for the indirectly cooled superconducting magnets under the action of the energy pulse has been worked out by Fourier Law: By assuming that it is isotropic in the superconducting magnet, the analysis is reduced to a one-dimensional transient heat transfer problem and an analytic solution is found.Simulation experiments on the superconducting magnet with computer have been performed and four sets of curves showing the relationship between the convergence rate in the normal region...

The transient heat transfer model for the indirectly cooled superconducting magnets under the action of the energy pulse has been worked out by Fourier Law: By assuming that it is isotropic in the superconducting magnet, the analysis is reduced to a one-dimensional transient heat transfer problem and an analytic solution is found.Simulation experiments on the superconducting magnet with computer have been performed and four sets of curves showing the relationship between the convergence rate in the normal region and the currents, the energy pulses, the thickness of the coil and the cooling condition of the magnet respectively have been obtained. Test results are discussed.

本文根据传热学Fourier定律,建立了用铝骨架间接冷却的超导磁体在能量脉冲的作用下的瞬态传热模型。在超导体内部各向同性的假设前提下将其简化为一维瞬态导热问题,并求出了它的分析解。在此基础上,运用计算机对这种间接冷却的超导磁体进行了模拟实验,得出了在不同电流密度,不同能量脉冲、不同线圈厚度以及不同冷却条件下的正常区收敛速度的四组曲线,并对计算结果进行了解释。

 
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