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边界     
相关语句
  boundary
    A Free Boundary Problem with Elliptic-parabolic Equations System
    一个椭圆—抛物方程组的自由边界问题
短句来源
    The Mechanical Quadrature Methods with the High Accuracy and Splitting Extrapolations for Solving Boundary Integral Equations of the First Kind of Scientific and Engineering Problems on Nonsmooth Domains
    非光滑域上科学与工程问题的第一类边界积分方程高精度机械求积法与分裂外推
短句来源
    Nonlinear Diffusion Equations with Nonlinear Boundary Sources
    具非线性边界源的非线性扩散方程
短句来源
    On the Proper Posing Study of Some Free Boundary Problems
    若干自由边界问题的适定性研究
短句来源
    CONCERNING THE PROPERTIES OF BOUNDED REGULAR FUNCTION IN THE NEARLY BOUNDARY
    关于有界全纯函数在边界附近的某些性质
短句来源
更多       
  edge
    ROBUSTNESS OF TIME-DELAY SYSTEMS AND EDGE THEOREM
    时滞系统的鲁棒性与边界定理
短句来源
    Boundary Tree Technique in Edge Finite Element Method
    棱边有限元法的边界树技术
短句来源
    Numerical solutions of mixed finite elements for thin axisymmetric cylindrical shell with free edge boundary conditions
    自由边界条件轴对称薄圆柱壳体的混合有限元数值解
短句来源
    Given the filter specifications(passband edge frequency f_p,stopband edge frequency f_s,maximum attenuate in passband A_(max),minimum attenuate in stopband A_(min),and sample frequency f_a),the coefficients of transfer function of filter,amplitude frequency value,phrase frequency value,and,amplitude frequency curve can soon be obtained.
    只要给定滤波器的特性指标(通带最大衰减A_(max)、阻带最小衰减A_(min)、通带边界频率f_p、阻带边界频率f_s及采样频率f_a)就能迅速得到滤波器传递函数的系数、幅频值、相频值及幅频曲线。
短句来源
    Given the filter specifications (passband edge frequency f_p, stopband edge frequency f_s, maximum attenuate in passband A_(max), minimum attenuate in stopband A_(min), and sample frequency f_a), the coefficients of transfer function of filter, amplitude frequency value, phrase frequency value, and, amplitude frequency curve can soon be obtained.
    只要给定滤波器的特性指标(通带最大衰减A_(max)、阻带最小衰减A_(max)、通带边界频率f_P、阻带边界频率fs及采样频率fa)就能迅速得到滤波器传递函数的系数、幅频值、相频值及幅频曲线。
短句来源
更多       
  bound
    SLMQN:A FORTRAN CODE OF SUBSPACE LIMITED MEMORY QUASI-NEWTON METHOD FOR LARGE-SCALE BOUND CONSTRAINED NONLINEAR OPTIMIZATION
    SLMQN:一个解大规模边界约束非线性规划子空间有限储存拟牛顿方法的FORTRAN优化软件
短句来源
    Poincaré bifurcation for quadratic system with a bound of hyperbola and a single center
    双曲线边界二次系统单中心环域的Poincaré分支
短句来源
    consider the exact controllability of wave equation with Dirichlet boundarywhere Ω is the region with bound in R~n.
    讨论一类Dirichlet边界波动方程(?) 的精确能控性,这里Ω是R~n中的有界区域。
短句来源
    (3) Automated generating method for bound conditions.
    (3)边界条件自动生成方法.
短句来源
    The author's solution approximately satisfies the whole fundamental equations (1.1) and (1.2) and the whole bound values conditions (1.3)~(1.5).
    本文作者的解近似地满足全部基本方程(1.1)和(1.2)和全部边界条件(1.3)~(1.5).
短句来源
更多       
  a boundary
    A BOUNDARY ELEMENT METHOD FOR SOLVING THE FREE BOUNDARY PROBLEMS OF NON-UNIFORM MEDIA
    解多种介质自由边界问题的边界元方法
短句来源
    A Boundary Element Method to Solve Problems in Electrostatic Fields
    边界单元法解静电场问题
短句来源
    A BOUNDARY INTEGRAL EQUATION METHOD FOR THE STATIONARY STOKES PROBLEM IN THREE DIMENSIONS
    三维定常流Stokes问题的边界积分方程法
短句来源
    A BOUNDARY INTEGRAL EQUATION METHOD FOR INCOMPRESSIBLE VISCOUS STATIONARY FLOWS AND THE FUNDAMENTAL SOLUTIONS TO STOKES' EQUATIONS
    粘滞不可压缩稳定流的边界积分方程法及Stokes方程的基本解
短句来源
    A Boundary Element Method to Solve Problems in Unstable Temperature Fields
    不稳定温度场的边界单元解法
短句来源
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      boundary
    The main idea for our approach relies on a study of the boundary theory we established for the general CAT(-1) spaces.
          
    LetD be a Hermitian symmetric space of tube type,S its Shilov boundary andG the neutral component of the group of bi-holomorphic diffeomorphisms ofD.
          
    Taking a specific determination of its argument and studying its limit when approaching the Shilov boundary, we are able to define a ?-valued,G-invariant kernel for triples of mutually transversal points inS.
          
    For every orbitGυ which is not polynomially convex we construct an analytic annulus or strip inG?υ with the boundary inGυ.
          
    Such properties are expressed using the Furstenberg boundary of the associated symmetric space ? × ?.
          
    更多          
      edge
    A Discrete Wavelet Transform without edge effects using wavelet extrapolation
          
    Commonly used techniques such as circular convolution and symmetric extension can produce undesirable edge effects which propagate into the interior of the transformed data as the number of DWT iterations increases.
          
    In this paper, we clarify exactly how "bad" such Gabor expansions are, we make it clear precisely where the edge is between "enough" and "too little," and we find a remedy for their shortcomings in terms of a certain summability method.
          
    A fixed double (single) bond of a Kekuléan benzenoid systemH is an edge belonging to all (none) of the Kekulé structures ofH.
          
    Furthermore, its connectivity, diameter and transitivity (vertex-, edge-) are also determined.
          
    更多          
      bound
    The least upper bound for the degrees of elements in a system of generators turns out to be independent of the number of vector variables.
          
    The main result of this paper is to establish the upper bound form, for eachn.
          
    In the special case whenFn is the projective spaceRPn, one also obtains the upper bound.
          
    We give a lower bound for the values Px,w(1) in terms of "patterns".
          
    Our lower bound comes from applying a decomposition theorem for "hyperbolic localization" [Br] to this torus action.
          
    更多          
      a boundary
    It is transferred to a boundary value problem for analytic functions and then further reduced to a singular integral equation, the unique solvability and an effective method of solution for which are established.
          
    Note on a boundary value problem of poisson's equation
          
    A boundary element method for a nonlinear boundary value problem in steady-state heat transfer in dimension three
          
    Moreover, a boundary element method is presented for its solution and the error estimates of the numerical approximations are given.
          
    Calculating aggregation index by the sample-plot data used to lead to computing error due to the existence of a boundary effect.
          
    更多          


    In this paper some cases of optimum control are studied when the conditions at the ends of trajectories are constrainted. The boundary conditions of the system of the differential equations (19), (22), etc. are determined; the formulae of functional variation (20) are derived; and the sufficient conditions of optimality and necessary conditions in some cases are proved.

    当軌线末端受有条件限制时,将使最优控制系統有关的微分方程的边界条件变得复杂。本文考虑了各种受限情形,提出了确定边界条件的方法,得到泛函改变量公式,討論了控制最优性的充分条件以及在某些情形下的必要条件。

    The differential equation for relaxation oscillation with external impressed e.m.f. is written as

    张弛振动之代表算式为一非直线的二次微分方程式在数学上至今未获完全解答颇耳氏(Van der Pol)曾以半解算半作图之方法研究强弛振动,但共方法仅能用於无外加控制电压之情形下故控制影响未能解说本文叙述用罗勃氏(A.A.Bobb)作图方法解析张弛振动之问题,自由振动与控制振动均可应用文中叙明通常之起始条件如何不适宜於作图及如何试设一边界条件而得正确之结果用此方法张弛振动之普通特性与频率减倍之现象,均能解说控制波与强弛振动波之相的关系,亦曾加以讨论所设对称的三次抛物线形之振动特性,未能完满解释偶谐控制波之控制功效

    In this paper the direct moment diatribution method has been developed to determine the natural frequencies of rigid frame structures.

    在过去曾在刚构的静力计算里面被广泛应用的弯矩分配法至今逐未见完整的应用于刚构 的自然振动计算中。原因第一是如何用分配法来判别自然振动还不够明确,第二是在振动计 算时分配传递收钦很慢甚至于发散,使计算繁难。本文中对节点没有位移的情况采用在刚架 任一节席 ∑K'=0 的判别式(其中E'代表动力修正刚劲度),如此可以利用连分式由已知 的边界向另一端推算,给出了简单明了的概念和计算方法。对节点有位移的情况应用了干扰 力等于零的判别方法,用直接分配法进行运算,避免了收钦很慢的缺席。这样就使得过去在 刚构静力计算里面能用分配法解决的问题也可同样的在振动计算上得到解决。

     
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