查询词典 variance analysis

In order to enhance the image with better anti-noise ability,this paper proposes a image pre-processing algorithm based on lateral inhibition and adaptive filter,which can not only outstands the image'outline,but also eliminates the noise by adaptively changing the model parameters accordingly to the local image's mean,variance and the noise variance.

为了既能增强图像，又具有较好抗噪性能，提出一种基于侧抑制网络和自适应滤波相结合的图像预处理算法，不仅突出了图像的轮廓，而且能根据图像的局部均值和方差以及噪声方差的不同，自适应地改变模型的参数来消除噪声。

At first, setting up the arith relation between the signal input and the signal output of the generalized multi-carrier system of the Discrete Fourier Test spread-spectrum; then setting equilibria parameters of the frequency field equilibria subcarrier of the generalized multi-carrier system of the DFT spread-spectrum according to channel frequency response, channel noise variance and equilibria method; then calculating average power of useful signal, interferential average power between signals as well as noise variance of the generalized multi-carrier system receiving terminal of the DFT spread-spectrum according to the arith relation as well as the frequency field equilibria parameter, and recomputing available signal information noise ratio, so as to calculate the available signal information noise ratio of the generalized multi-carrier transmission system accurately, the method for estimating the available signal information noise ratio can be used for link self-adapting transmission solution of the generalized multi-carrier system based on Discrete Fourier Test spread-spectrum and radio material management.

一种DFT扩频的广义多载波系统的SINR估计方法，其通过首先建立所述离散傅立叶变换扩频的广义多载波传输系统的信号输入输出之间的数学关系，然后根据信道频率响应、信道噪声方差和均衡方法，设定所述DFT扩频的广义多载波传输系统的频域均衡子载波的均衡系数，再根据所述数学关系及所述频域均衡系数分别计算所述DFT扩频的广义多载波传输系统接收端有用信号的平均功率、信号间干扰的平均功率以及噪声方差，再计算有效信干噪比，如此以实现对广义多载波传输系统的有效信干噪比的准确计算，该有效信干噪比估计方法可用于基于离散傅立叶变换扩频的广义多载波传输系统的链路自适应传输方案和无线资源管理方面。

In Ya'an, six QTL conferring Fusarium moniliforme ear rot resistance on chromosomes 2, 3, 4, 6, and 9 were detected and explained 8.3%-25.7% of the phenotypic variance; while in Mianyang, four QTL were identified on chromosomes 1, 6, 7, and 9 that accounted for 11.3%-26.4% of the total phenotypic variance.

用已构建的包括88个AFLP标记和151个SSR标记的遗传图谱和230个F2植株用于抗病QTL定位研究，在四川雅安、绵阳对F2株系进行抗病性鉴定，采用复合区间定位法进行抗病QTL检测。

According to the porportion of restriction fragments shared,the genetic distancesamong the 4 populations were calculated with popgene3.2,and a cladogram wasproduced with MEGA3.1.The result showed that the genetic variance dismatch withtheir diapause variance.

根据限制性片段共享度，利用POPGEN3.2计算4个群体的遗似距离，并利用MEGA3.1进行聚类分析，结果表明其遗传变异与其滞育变异的特征不相符。

The results show that: when the stress triaxiality is low, the penny-shaped crack can lead to damage anistropy of a ductile material; and the variance of Lodes parameter will lead to the variance of the expanding rate and deformed shape of penny-shaped crack and sphere-shaped void.

进而对材料中同时含有币形微裂纹和球形微孔洞的情形作了数值模拟分析。计算结果表明：币形微裂纹的存在将导致低应力三轴度下韧性材料破坏的细观损伤呈现明显的各向异性；而Lode参数对微裂纹和微孔洞的长大和变形状态具有较大的影响。

The object of the study is consumers in Taipei city, and the study used AIO life style scale as the base of market segmentation. Data was collected by using questionnaires based on innovation adoption process, product attributes of portable multimedia player, and demographic variables and analyzed by applying factor analysis, cluster analysis, analysis-of-variance, and chi-square test.

本研究以台北市消费者为研究对象，以AIO生活型态量表作为区隔基础，利用问卷调查方式搜集资料，透过创新采用过程、行动影音播放器之产品属性、人口统计变数作为投入变数，并使用因素分析、集群分析、变异数分析、卡方检定等方法来分析所得之实证资料。

Analysis of covariance is a combination of regression analysis and variance analysis.

协方差分析足把直线回归与方差分析结合起来应用的一种方法。

This section simply introduces the basic principles of the conventional analysis of time series (mean, variance, standard deviation; covariance and correlation coefficient; autocovariance and autocorrelation coefficient), frequency spectrum analysis and wavelet analysis.

本文简单地介绍了传统时序分析（包括平均值、方差和标准差；协方差和相关因子；自协方差和自相关因子）、频谱分析和小波分析的基本原理。

MethodsA cluster sampling of 1 474 middle-aged intellectuals was measured by the SCL-90 table and was analyzed by the Reliability Analysis, Principal Component Analysis and Analysis of Variance.

方法采用整群抽样方法，应用症状自评量表SCL-90对1474名中年知识分子进行心理状况测评，运用尺度分析、主成分因子分析和方差分析。

Present various analytical methods in management decision making, including benefit/cost ratio analysis , variance analysis , and break-even analysis.

课程中将会陈述在管理决策中多种不同的分析方法，包含利润/成本比例分析、差异分析与损益平衡分析

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。