查询词典 descent method

By applying elementary transformation,this paper obtains a new method to search for a normal orthogonal basis in Euclid space, it also gives a procedure by which the fewer third elementary transformations are enough to realize this method.

导出用初等变换法求Euclid空间的标准正交基的方法，并进一步获得了只需进行较少次数的第三种类型的初等变换就能实现这一方法的结果。

The model of the discrete ordinates method and the finite volume method in multi-dimensional orthogonal coordinates, and body-fitted coordinates is established to solve the radiative transfer equations in absorbing, scattering media.

建立了离散坐标法及有限体积法、正交坐标系多维，贴体坐标系多维吸收、散射性介质内的辐射传递计算模型。研究非灰体粒子系内辐射传递及将其简化为灰介质系的有效方法。

Summary In this paper, a brief history review of works on the theory of electromagnetic flowmeters is given. A method named'Alternative iteraction method for approaching real boundaries'is presented to solve Laplace's equation with mixed boundary conditions in electromagnetic flowmeters. The orthogonal expansion is used to analyze weight vectors and flow distribition effects on the sensitivity of the flowmeters.

本文在总结和分析了前人在电磁流量计变送器方面的理论研究成果后，首次提出了"交替迭代逼近边界"的方法求解电磁流量计理论研究中遇到的Laplace方程的混合边界条件问题；采用正交函数展开的方法研究权函数以及被测流体速度分布不规则对仪表输出的影响；采用保角变换的方法首次求解出电磁流量计偏心环域上的权函数。

Based on the interference characteristic, the sidelobe cancellation in time is presented and the procedure is designed, which achieves good results that the detection distances of OSMAR is increased by over 40km. At last the dissertation summarizes the application of beamforming in HFSWR, its effect and defects. 5 The dissertation discusses the application of orthogonal expansion method in HFSWR. At first, the traditional OE algorithm is introduced, and the output form is concluded. Then the dissertation discusses the influence of OE method on target signal.

首先介绍了阵列天线的方向图，接着阐述了波束形成的基本原理，然后引入了自适应波束的概念，讨论了确定权函数的准则，介绍了自适应波束形成在高频地波探海雷达中的应用和兼顾目标信号的波束形成；重点介绍了自适应旁瓣对消的原理和权系数计算方法，结合高频地波探海雷达数据特点，设计了在频域用旁瓣对消法消除射频干扰的处理过程，给出了处理结果，并对其效果进行分析，进而提出在时域进行分段旁瓣对消的新方法，设计了处理流程和计算方法，然后给出处理结果，该方法能提高OSMAR探测距离40km以上。

Net ameliorates the traditional polynomials image registration method, puts forward a new method using orthogonal polynomials, expatiates the principle, arithmetic of this technique, and then realizes the clipping registration and superposition of vectorgraph and remote-sensing image.

Net 平台的基础上，改进了传统的多项式图像配准方法，提出了一种利用正交多项式进行图像配准的新思路，从而进一步实现了矢量图与遥感图像的快速叠合。

The result of orthogonal experiment showed that the sequence of the factors affecting extraction ratio of the LPC was flocculation method, solid-liquid ratio and the amount of adding salt. The optimal combination condition was solid-liquid ratio 1:7, salt concentration 0.3% and ethanol precipitation method.

对固液比、盐浓度、凝絮方法3因素3水平正交试验结果表明，影响聚合草叶蛋白提取率的因素依次为凝絮方法＞固液比＞加盐量，最佳条件组合为固液比1：7、盐浓度0.3%、乙醇法沉淀。

As to nonparametric and semiparametric regression models, the most widely used regression methods include: local smoothness, including Nadaraya-Watson kernel estimate, Gasser-Muller estimate, local polynomial method; spline method(such as smoothing spline, spline penalies and so on); other is orthogonal series estimates, such as Fourier series and so on.

本文主要介绍Nadaraya-Watson核估计方法对非参数模型估计的思路和估计方法，变系数模型中函数系数的局部多项式估计，包括估计思路，估计计算。

As to nonparametric and semiparametric regression models, the most widely used regression methods include, spline method(such as smoothing spline, penalized spline and so on); local smoothness, such as Nadaraya-Watson kernel estimate, Gasser-Muller estimate, local polynomial method; the third is orthogonal series, including Fourier series and so on.

所以三次光滑样条应用比较广泛。本文应用三次光滑样条方法来估计单指标部分线性模型中单指标参数和变系数部分线性模型中的函数系数。

Based on the analysis of conventional phase difference detection method,a new algorithm of phase difference detection is presented according to Fourier series decomposition method and the characteristic that inner product of two orthogonal vectors in a linear space is zero.

在分析现有相位差检测算法的基础上，应用Fourier级数分解方法与线性空间中正交向量内积为零的特性，推导出了一种新的相位差检测算法。

A novel method is proposed, which is based on orthogonal least square algorithm. This method offers a systematic way for the selection of input variables.

神经网络是进行负荷预测的一种成功方法，输入变量的选择是影响神经网络预测效果的重要因素，本文提出了基于正交最小平方方法的神经网络输入变量选择方法。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"