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解析近似
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  analytic approximation
     The Analytic Approximation to a Class Of Plasma Resonance Integrals
     一类等离子体共振积分的解析近似
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     The Analytic Approximation of Rain Attenuation
     雨衰减的解析近似
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     In this paper, with analytic approximation of eigenvalues for W-type fibres, theelectric field of W-type single mode fibres is solved, and the coupling coefficients be-tween two W-type single mode fibres are then calculated with different index profileparameters.
     本文用解析近似求本征值的方法求解W单模光纤的电场,来计算W光纤之间的能量耦合。 给出了不同折射率分布参数时,耦合系数随间距D变化的曲线。
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     Based on the criterion of priori detection threshold optimization,this paper first derives an analytic approximation to the (deterministic) modified Riccati equation for the case of 3D measurements and a four sigma validation gate,and then presents a joint optimization method of detection and tracking in Rayleigh clutter environment when PDAF algorithm is used.
     对3 D传感器使用 PDAF进行目标跟踪的情况 ,本文以先验检测门限优化准则为设计准则 ,通过用解析近似表示式拟合修正 Riccati方程中的参数 ,给出了瑞利起伏环境下实现检测和跟踪联合优化的方法。
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     The recently proposed “analytic approximation solution” is proved to be a good approximation to the corresponding analytic solution under some conditions.
     从精确解出发,推导出最近文献中提出的“解析近似解”,并指出该近似解的适用条件.
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  analytical approximation
     A numerical simulation using a two dimensional analytical approximation for the HL 1M tokamak shows that the method of current analysis given by Rogister should be modified.
     用二维解析近似对HL-1M装置作的数值估算结果表明,Rogister对电流的分析需要加以修改,不能简单地引用
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     Introducing a "phase function" yt which corresponds to a certain radial wave function φl, it permits one to derive an analytical approximation for the logarithmic derivative of φl and the phase shift due to a spherically symmetrical potential.
     发现引用一个径向波函数φ_l的“相位函数”y_l,可以方便地对球对称势场造成的相移和φ_l的对数微商作解析近似处理。
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     A refinement of an analytical approximation of the surface potential in MOSFETs is proposed by introducing a high-order term.
     通过在表面势公式中增加一高阶近似项,大大提高了传统表面势的解析近似精度.
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     After their discretion,it is possible to obtain the expression and analytical approximation for the annual probability of exceedance.
     离散化之后,得到年超越概率的综合表达式及其相应的解析近似
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     Refinement of an Analytical Approximation of the Surface Potential in MOSFETs
     MOSFET表面势解析近似方法的改进(英文)
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  analytical approximate
     We have derived an analytical approximate solution to nonlinear Schrodinger equation with higherorder dispersion tising a Function-Series Method.
     本文用函数级数法导出合高阶色散的非线性薛定谔方程的解析近似解;
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     In this thesis, at first the dynamic scaling properties of kinetic roughening surfaces, the background knowledge of dynamic scaling theory, the widely-used dynamic equations governing surface growth and the analytical approximate approaches to these equationsare introduced in detail, and then our three main research works in this field are presented.
     本文较为详细地介绍了表面界面粗化生长的动力学标度性质、动力学标度理论的基本知识、用来描述表面界面生长过程的常见动力学方程、对动力学方程进行解析近似分析以确定其动力学标度性质的常用方法以及本文在这一领域所进行的研究工作。 本文的研究工作可以分为三个方面:
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     The numerical results coincide with the analytical approximate theory under the conditions of adiabatic approximation ω<
     结果表明,当绝热近似条件ωD△V和小信号近似条件A1得到满足时,以往的解析近似理论结果与数值结果符合; 当驱动强度增加时,则系统表现出明显的决定性非线性振动行为。
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     On the basis of the entropy pricing theory,we formulate the entropy model of American bond option with the Geske-Johnson′s method of analytical approximation of American option,and give the option pricing analytical approximate formula of the underlying of the zero-coupon bonds and the coupon bonds. Finally,the tractable arithmetic process is presented.
     基于熵定价理论,结合美式期权解析近似求解的G eske-Johnson方法,构建了美式债券期权定价熵模型,给出了标的资产为零息票债券和息票债券的美式期权估值的解析近似计算公式,并展示了具体的算法步骤.
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  “解析近似”译为未确定词的双语例句
     The boundary of static voltage stability region (SVSR), which is also the power flow solution boundary is approximated by nonlinear analytical forms in power injection space.
     本文用“域”的方法对电力系统静态电压稳定问题,即系统潮流方程的可解边界进行了探讨,并力图寻求注入空间上静态电压稳定域(SVSR)边界的非线性解析近似
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     The first study on the mass functions of Jenkins et al(J01) and an estimate of their corresponding largest virialized dark haloes in the universe for a variety of dark-energy cosmological models with a running spectral index is presented.
     基于这个结果,应用半解析近似,对Jenkins et al(J01)质量方程进行了研究,同时在各个连续谱指数暗能量宇宙学模型下计算出这些模型对应的宇宙中最大暗物质晕的位里质量.
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     On the base of a plenty of facts we suggested a method in which bi-Gaussian form is approached the output pulse in multimode fibers The accuracy measuring band in time domain can be improved highly.
     在综合大量实例的基础上,提出双高斯函数逼近多模光纤的光脉冲输出的解析近似方法,使时域法确定光纤带宽的精度大为提高。
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     The overestimation and its cause of the results obtained by a Monte Carlo method used by other author recently is noted, and a power independent linewidth component of the side mode of the order of 100 MHz agreed with experiment is obtained where the small signal approximation is not applicable.
     指出最近有人用Monte-Carlo法对此得出过高估计的原因,并对小讯号解析近似已不适用的次模线宽得出其与功率无关的线宽分量约为100MHz,与实验一致。
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     On the basis of quasi-analytic approximation and re-weighted regularized conjugate gradient method (RRCG),the paper deduced a set of algorithms practically used and used Visual Fortran 6.5 to develop the program of 3-D quasi-analytic approximation inversion of borehole-to-surface electric data.
     本文在准解析近似和重加权正则化的共轭梯度法的基础上,推演出一套可实际应用的算法,并用Visual Fortran6.5开发了井地电法三维准解析近似反演程序。
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  analytic approximation
We show that many properties of the baby skyrmions, which have been determined numerically, can be understood in terms of an analytic approximation.
      
An analytic approximation for the dust grain diffusion coefficient in strongly nonideal systems is obtained.
      
An analytic approximation corresponding to the known empirical expression is obtained for the current-voltage characteristic of the contact.
      
An analytic approximation to the loop-soup approach of Liang et al.
      
We present a simple analytic approximation for evaluating the
      
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  analytical approximation
The rules for constructing the analytical approximation are formulated for the law of the accumulation of the condensing substance by droplets that have emerged at centers of different natures.
      
This analytical approximation describes a large and complicated evolution of the eccentricity in corresponding areas of the phase space and the space of parameters.
      
The analytical approximation describes the orbit evolution in the right way, except for the cases of large eccentricities, e>amp;gt; 0.4, which corresponds to a pericenter height of less than 1400 km, where the atmospheric drag is already significant.
      
The accuracy of the analytical approximation obtained is verified by comparison with the known experimental equilibrium velocity profiles.
      
An analytical approximation of the Debye function is suggested.
      
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  analytical approximate
Analytical approximate expressions are obtained for the energy spectrum.
      
The analytical approximate solution of the 2D thermal displacement
      
An explicit analytical approximate soliton solution in the exponentially dispersion-decreasing fiber is obtained using the derived dynamical equations.
      
An analytical approximate method for the Dirac equation with confining power law scalar plus vector potentials, applicable to the problem of the relativistic quark confinement, is presented.
      
Analytical approximate solutions of the nonlinear basic equations in classical physics
      
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The general properties of hybridized conduction bands were studied in the LMTO representation. General expressions of the density of states N(E) and partial wei-ghts { Bli~k}2 were derived. Introducing a "phase function" yt which corresponds to a certain radial wave function φl, it permits one to derive an analytical approximation for the logarithmic derivative of φl and the phase shift due to a spherically symmetrical potential. Then the analytical behaviour of electronic factor η in electron-phonon coupling...

The general properties of hybridized conduction bands were studied in the LMTO representation. General expressions of the density of states N(E) and partial wei-ghts { Bli~k}2 were derived. Introducing a "phase function" yt which corresponds to a certain radial wave function φl, it permits one to derive an analytical approximation for the logarithmic derivative of φl and the phase shift due to a spherically symmetrical potential. Then the analytical behaviour of electronic factor η in electron-phonon coupling was studied. We verified the presence of an "intrinsic upper limit" for η and evaluated its order of magnitude. Discussions were given for the general rules affecting η and the comparison with experiment. As for the relation to searching for strong coupling and high Tc, we emphasized the role of magnitude of hybridization, especilly enhancing the f-component in a d-like conduction band.

本文用角动量分波表象的能带论方法研究了杂化导带的一般性质。得出了电子态密度和分波含量的一般关系式。发现引用一个径向波函数φ_l的“相位函数”y_l,可以方便地对球对称势场造成的相移和φ_l的对数微商作解析近似处理。在此基础上研究了电子-声子耦合中的系数η的性质。论证了η有一个“本征上限”,并估计了它的量级。讨论了影响η强弱的一般规律,与实验现象作了比较。指出提高导带角动量杂化程度,特别是提高d导带中的f分波含量,以至试图实现似f导带,可能是强化电子-声子耦合潜力较大的探索方向。

In this Paper, an asymptotic elastoplastic analysis in plane strain deformation near a crack tip is established. The special case of which is the well-known Irwin's solution in elastic material. In this Paper, an asymptotic elastoplastic analysis in plane strain deformation near a crack tip is established. The special case of which is the well-known Irwin's solution in elastic material.

本文给出了平面应变条件下裂纹尖端附近的弹塑性的应力、应变和位移的解析近似解,其特例即Irwin的弹性主项解,从而使弹塑性断裂力学分析所需的一切场量都可以从文中得到。

This paper deals with the conformal transformation method used in solving problems of incompressible and two-dimensional flow in infinite field. It also shows an approximate treatment in the course of finding the tranformative function. The main feature of this method is that it has obtained an approximate analytical expression for the velocity and pressure distribution on an arbitrary aerofoil surface. This method is named "R" Method in order to distinguish it from others. Using the approximate analytical expression...

This paper deals with the conformal transformation method used in solving problems of incompressible and two-dimensional flow in infinite field. It also shows an approximate treatment in the course of finding the tranformative function. The main feature of this method is that it has obtained an approximate analytical expression for the velocity and pressure distribution on an arbitrary aerofoil surface. This method is named "R" Method in order to distinguish it from others. Using the approximate analytical expression of V.P. derived above, we have carried out some calculations about the arbitrary symmetrical thin aerofoil and arbitrary non-symmetrical aerofoil. This approach is also compared with the traditional approximate solution and the experimental results. It is thus proved that "R" method can be consistent with the experimental results satisfactorily.

本文用保角变换法求解不可压、二元剖面势流问题,在求变换函数的过程中作了近似的变换处理,其方法的主要特点是获得了对任意翼型表面的速度和压力分布的近似解析表达式。为了区别其它有关计算方法,特将此方法取名为“R”近似计算方法。文中利用所推导的V、P的解析近似表达式,对任意对称翼型“薄翼”剖面翼型和任意非对称翼型作了计算,并与传统近似解和试验结果作了比较,从而证明本文所提出的“R”方法与试验结果能够很好地符合。

 
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