查询词典 Gilbert's method

Secondly,traditional calculation theory on configuration of main cable of cable suspension bridge was introduced such as parabola theory,segmental catenary curve method,segmental parabola method and segmental line method.At last,two calculation theories on the stability of bridge was put forth.

具体内容如下：(1)首先分析了影响自锚式悬索桥非线性的几种因素，然后介绍了悬索桥的传统线形计算理论——抛物线理论、悬索桥主缆线形计算的精确方法——分段悬链线方法以及分段抛物线法和分段直线法，最后介绍了桥梁稳定性计算的两种计算理论。

A new non-linear quadratic programming Bayesian prestack three-terms inversion method is developed; Firstly, this method is based on Bayesian parameter estimation theory, Gaussian distribution is used for likelihood function and modified Cauchy distribution is used for prior distribution; Secondly, covariance matrix is used to describe the degree of correlation between the parameters; rock physics relations are used to constrain the inversion results; at last, this method is transformed into non-linear quadratic programming problem, and inversion results are acquired under several constraints.

本文提出了一种基于非线性二次规划的叠前三参数反演方法。首先基于贝叶斯参数估计理论，假设似然函数服从高斯分布，并使待反演的参数服从于改进的Cauchy分布，从而提高了反演结果的分辨率；其次用协方差矩阵来描述参数间的相关程度，进一步提高了反演结果的稳定性；最后将问题转化为一个非线性二次规划的求解问题，并在多种约束下得到问题的解。

Then the boundary element integral equation of interior and exterior form is deduced in detail, also the form with corner coefficient. The significance for numerical calculation and principle of the singular integral is analyzed, and a non-isoparametric transformation method is presented to calculate weak singular integral and Cauchy integral, the method presented provides us a very simple way to computer the two kinds of singular integral of Helmholtz boundary integral equation, and it is easy to program in computer. After the difficulty of the calculation for multi-frequency of Helmholtz boundary element is explained, a method named SECHIEF (Series Expansion Combined Helmholtz Integral Equation Formulation), which is focused on the computational efficiency, is presented.

对结构声辐射的边界积分方程的内部形式与外部形式进行了详细的推导，给出了角点系数的计算方法与边界积分方程的形式，在此基础上，分析了奇异积分产生的原理及其对数值计算的重要性，提出了一种计算奇异积分的非等参(来源：Ae8a8BC论文网www.abclunwen.com)单元的变换方法，该方法给Helmholtz 声学边界积分方程中的弱奇异积分与Cauchy 奇异积分的计算以及编程提供了极大便利。

The finite element numerical method based on centimo theory and dispart-insert-value One side ,it is conventional energy method. It is transfiguration of Ritz-Galerkin method .

在求解非线性波动方程时，有限元方法通过剖分插值构造有限维子空间SN的基函数的方法保持了古典Ritz-Galerkin方法的优点，克服了它的不足。

Further more, transmission systems with branches of uniform and nonuniform transmission lines can be studied with this method conveniently. Two approaches for solving the ABCD matrices of nonuniform lines are given, one is the method of equivalent cascaded network chain, another is the one-step method.

波形张驰迭代法最近几年才被用来分析多导体传输线的时域响应，在第五章作者用此方法首次分析了具有频变参数的传输线，并将波形的概念进一步推广，给出了用波形张驰迭代技术求解非均匀传输线ABCD矩阵的方法。

Firstly, this paper introduces the domestic and foreign present research situation and correlative knowledge, proposes the method of traffic organization optimal and plan estimate; Secondly, this paper depicts signalized intersection organization optimum detailed from method of transit, channelization design and signal design, namely carries on the synthesis optimization design, makes every effort to optimize for the signalized intersection traffic organization provides some scientific, comprehensive and practical theory and method.

论文首先介绍交通组织优化国内外研究现状及相关的基础知识，提出了交通组织优化的思路和优化方案的效果评价方法；其次对信号交叉口交通组织优化从交叉口放行方法、交叉口渠化方法和交叉口信号设计方法三个层次予以详细阐述，即进行综合优化设计，力求为信号交叉口的交通组织优化提供一些科学、全面和实用的理论和方法。

The second part is the computational methods of the determinant: This part is core part in the full text, and mainly studied 14 kinds computational methods which nearly covered each kind of the characteristic of the determinant computation, including the definition method, the triangle method, Canada method and so on.

第二部分为行列式的计算方法：这一部分是全文的核心部分，主要研究了几乎覆盖各种特征的行列式计算的十四种重要方法，包括定义法、三角形法、加边法等，它们为我们计算行列式提供了方便快捷的途径。

Based upon the finite element method, the minimum energy method and electric charge conservation method are used to calculate electric field intensity distribution of the cable which contains suspending conductors.

本文采用有限元方法计算分析了有悬浮导体的电缆附件的电场强度分布，在可视化单连通域有限元前处理的基础上，补充完成了含有悬浮导体的可视化有限元前处理的研制工作。

Through above study, the theoretical analysis of the inherent fault tolerance of feed-forward neural networks has been extended from hard-limit activation functions to differentiable activation functions; 2. By using above method, fault tolerance of discrete Hopfield feedback neural networks have been also analyzed. It means that the above method can be applied not only for feed-forward neural networks but also for feedback neural networks; 3. For the feed-forward neural network with the Sigmoid activation function, Chebyshev Inequality method was presented.

这项研究将以前仅限于对硬限幅作用函数前向神经网络固有容错性能的理论分析推广到具有可微作用函数的前向神经网络； 2 针对离散型Hopfield反馈神经网络，利用上面提出的方法，对其同样进行了容错性分析，得出许多有用的结论和计算公式，说明上面提出的方法不仅适用于前向神经网络，同时也适用于反馈神经网络； 3 针对具有Sigmoid作用函数的前向神经网络提出了一种切比雪夫不等式法。

The research on N_4 to N60 have been also stated in this study. Gas reaction method, liquid electrolyzing method and Chemosynthesis method have been used to synthesize polynitrogen clusters and find the optimal reaction conditions in this paper.

本文综述了高能密度材料的发展历史、性能特征以及应用前景，并总结了人们在实验和理论两方面关于N_4到N_(60)的各种可能稳定存在的氮原子簇的研究成果。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。