查询词典 halving method

A new nonlinear multistep method is constructed based on the implicit Euler method in this chapter, named Schur product multistep method.

本文在隐式Euler方法的基础上构造了一种非线性多步法，即Schur积多步方法。

Euler method, single step method and one-leg multistep method are considered as maily numerical computation schemes.

本文分别采用显式Euler法，单步θ-方法和one-leg方法作为数值计算格式。

Otherwise, we construct an exponential fitting schur product multistep method based on schur product multistep method and exponential fitting method.

数值实验表明，该方法与传统方法相比，在同等步长下，方法的计算精度远远高于传统方法。另外，本文将此类指数拟合方法与Schur积多步方法结合起来，构造了一类指数拟合Schur积多步方法。

General comprehensive evaluation method and multivariate statistics method are the two comprehensive evaluation methods with strong practicability but have its own limitation,as a result,the advantages and disadvantages of each method should be measured when they are used so as to overall make objective evaluation on macro-economic benefit.

常规的综合评价方法和多元统计方法是实用性较强的两种综合评价方法，但是也都有各自的局限性，因此在使用时要权衡每一种方法的优劣，以对宏观经济效益有全面客观的评价。

Allotment is researched, mainly includes common methods of n－person cooperation game problem, its general method and solution, especially includes multiple objective programming method, DEA and multi-criteria decision method.

研究分配问题，主要研究分配问题中的多人合作对策问题，合作对策模型的常用解法，特别是多目标规划，以及DEA与多目标决策解法等。

It includes hardware equipments and foundational theory of the image digitization. This paper expatiates on some digital image processing technologies that the inspecting system may apply to the research and analysis of the collected glass-crack image. Using neighborhood average method and median filter retrains the image noises and make the image edge smooth. Then protract the histogram of the gray image, get the threshold of this image, utilize the threshold method and gray-level slice method to get a binary image, and detect the image edge. Finally calculate the area and perimeter of the glass-crack image, and use the circularity to judge whether this image is a glass-crack image.

本文重点阐述了研究和开发这套玻璃瓶裂纹检测系统所应用到的一些数字图像处理技术，并应用这些技术和方法对采集的裂纹图像进行了处理和分析：应用邻域平均法和中值滤波法来抑制图像的噪声，使图像的边缘平滑；然后绘制出处理过图像的灰度直方图，得到该幅裂纹图像的阈值，利用阈值法和灰度级切片法对裂纹图像进行二值化处理，得到其二值图像，并对图像进行了边缘检测；最后计算出裂纹图像的面积和周长，利用圆形度指标来判断该图像是否为裂纹图像。

Airspace Image Fusion such as simple fusion method (pixel average, maximal or minimal pixel selection), Frequency-domain image fusion methods include the multiresolution image fusion techniques based on multi-scale pyramid decomposition, and the image fusion method based on wavelet transform Image Pre-processing like Filter processing (neighborhood average filter, median filtering method) and Image Registration.

首先介绍了图像信息融合的概念、优势、发展历史和应用领域，并介绍了图像融合的三个层次及常用的空域图像融合方法，空域融合方法有像素平均法、像素最大最小法、像素加权平均法，频域融合方法包括图像的多尺度分解、图像的小波变换、基于小波变换的图像融合方法。

Basing on the future of fractal,this paper introduces the density analysis method and points out the defects of existing feature selection method based on fractal dimension.Then a feature selection method based on fractal and changes of neighborhood space density is proposed.

根据数据集的分形特征，引入了密度分析方法，指出了当前基于分形维数的属性选择方法的不足，提出了一种基于分形和邻接空间密度变化的属性选择方法。

Oenococcus oeni was used as experimental material to count its number with three methods of colony counting method, nephelometer method and spectrophotometer method respectively.

以酒酒球菌为试验材料，分别用平板计数法、浊度计法、分光光度计法进行计数，所得的细胞数分别与对应的NTU值、OD值建立回归方程，方程分别为y=(0.0913+3.0075x)×107；y=(73.561x-4.8994)×107。

An optimization method for large scale problems which combines Newton method and Interated-Subspace method is proposed.

结合牛顿法与子空间迭代的思想，给出了一种求解大型优化问题的方法。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。