查询词典 sample method

This paper is expanded into three main parts to study and analyze the stock time series.1 Through the normality tests, All the sample stock-data curves show different phenomenon of Aiguille and Fat-tail, as well as Left-Deviation, which proves that none of the sample series belong to normal distribution, in other words, the linear method can't be applied into the analysis process, so we adopted the R/S method instead.2 The application of R/S method has verified the long-term memory characteristics of the sample series, and Support Vector Regression is combined to enhance the precision of Average circle period.

文中对股票时间序列从以下三个方面进行了研究和分析：1通过正态性检验，发现各样本股票数据均表现出不同程度的尖峰和胖尾以及左偏现象，证明了所有的样本序列全都不属于正态分布，也就是说明它们不能够适用线性方法进行分析，必须采用重标极差分析方法的非线性方法。2应用R/S分析方法验证他们具有长期记忆的特性，并且结合支持向量回归机提高了测定平均循环周期时的精确性。

Methods: The sample extraction method of total flavonoids, including water bath water bath reflux extraction and ultrasonic extraction method, the sample determination of total flavonoids, including aluminum nitrate chromogenic method and direct color method, the sample determination of antioxidant flavonoids, including FRAP method and DPPH method.

样品总黄酮提取方法包括恒温水浴回流提取法和恒温水浴超声波提取法，样品总黄酮含量测定方法包括硝酸铝显色法和直接显色法，样品总黄酮抗氧化性测定方法包括FRAP法和DPPH法。

At the beginning, an engineering method called semi-empirical reliability estimation method is introduced. Then, a detailed introduction of the bootstrap method, which has been widely applied to small sample reliability assessing since it was proposed in 1979, is made immediately. At last, a promoted virtual sample expanding method, that the reliability test sample size is expanded from 2-3 to 10, is proposed on the basis of predecessors research results. And the new method associated with bootstrap method is used to assess the test life lower limit in the case of logarithmic normal distribution.

首先阐述了处理极小子样可靠性评估问题较合理的一种工程处理方法—半经验可靠性评估方法，随后详细介绍了近年来在小子样可靠性评估领域发展迅速的Bootstrap方法，最后在前人研究成果的基础上提出了将样本数从n=2～3虚拟增广至n=10的虚拟增广样本推广方法，将该方法应用于服从对数正态分布的寿命总体，利用Bootstrap方法得到了试验寿命下限的估计，并与已有的半经验可靠性评估方法的结果作了比较分析。

The first method defines sample database by artificial operation, the second method builds one sample database and one potential sample database by the sample\'s self- training method. Some potential geometric regions are obtained by using a simple fast Hough arithmetic.

同样通过简单的快速Hough算法获取一些潜在几何区域，用对二值图像的块匹配方法对潜在的矩形区域进行识别并把它分类变成几种比分板和广告块。

Therefore, in order to learn the basic situation of the "two-course" teaching, especially to learn the students" recognition and valuation of the "two-course, this paper surveyed 1200 students in different sex, grade and major, who were selected by stratified sample method in Wuhan University.

大学生认为有必要开设"两课"，而且"两课"教学内容与中学相关教育内容的衔接情况良好，对大学生思想政治观念的形成和今后的发展有一定的帮助；但他们对是否可以通过课堂形式进行思想政治教育的问题存在较大的分歧。

Methods Using systematic sample method and investigating the aged of 980 in a certain community.

采用系统抽样方法，对上海市某社区60岁以上老年人980人进行问卷调查。

Methods Using systematic sample method,103patients and86controls were enrolled randomly the40～60old in type2diabetes in a certain community of Shanghai The study group received both routine treatment and diabetes education,diet regulated,and the control group routine treatment only.

采用系统抽样方法，在上海市某社区40～60岁2型糖尿病患者中，随机选择干预组86例病人，除常规药物治疗，辅以糖尿病健康教育、心理、饮食干预、定期血糖测定等12个月。

Methods Prevention and cure measures to control contagion were put into practice.Malaria and skeptical cases were investigated in population.Secondary cases were prevented.Incidence of Malaria was investigated by random sample method with IFAT and density of vector was also investigated;Epidemic trend was analyzed.

实施以控制传染源为主的防制策略，在各类人群中开展疟疾病例侦查，防止继发病例；采用间接免疫荧光技术随机抽样调查居民患病情况和媒介密度；综合分析疟疾流行趋势。

A direct sample method has been used to simulate the discrete polydisperse Mie phase functions of haze aerosol.

提出了一种直接随机抽样拟合散射相函数的方法。

Sample method is used to study the habitat used by Cabot's tragopan on geographical features, structure of vegetation, characteristic of every vegetation layer.

采用样方法对黄腹角雉栖息地的地理特征、植被组成、乔木层、灌木层以及地被植物的特点等方面进行了研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。