查询词典 proportional sampling

According to the survey for the whole country to the provinces, autonomous regions and municipalities for the whole meeting, to take layered, multi-stage cluster probability sampling method proportional.

据介绍，这次调查以全国为总体，以各省、自治区、直辖市为次总体，采取分层、多阶段、整群概率比例的抽样方法。

The subjects are 609 students sampled from a junior high school at Taipei County by stratified proportional random sampling method.

本研究以台北县某国中学生为母群体，采分层比例随机抽样方法，抽出样本609人。

Methods Probability proportional to size sampling method was used to select 6006 residents aged 45 years and elder from Shilin county. Information was obtained from a questionnaire survey and fasting blood sugar test. The data was analyzed with binary logistic regression.

在昆明市石林县采用按比例概率抽样方法，对6 006名45岁～农村居民进行问卷调查和空腹血糖检测，并应用二分类Logistic模型分析影响糖尿病患病的因素。

The purpose of this study is to investigate the relationship among Perfectionism, Self-esteem and Depressive tendency of Adolescents. Questionnaire survey were utilized as the method of this study. Subjects consisted of 686 junior high school students and 612 senior high school students in Kaohsiung City, and they were selected by stratified proportional cluster sampling.

本研究旨在了解青少年完美主义、自尊与其忧郁倾向之相关研究，采问卷调查法，使用分层比例丛集取样的方式，以高雄市国中生686人和高中生612人为样本进行调查。

Methods. A total of 1461 (669 females and 792 males; age range, 16 to 69 yr) workers were selected through a representative population survey (7,597,386 Taiwanese workers) in 1999 from the Taiwan Bureau of Labor Insurance by proportional probability sampling.

研究样本系以等机率抽样方式自1999年台湾地区劳保资料库（抽样母群体包括7，597，386位台湾劳工）抽出，总计有1461笔样本（669位女性与792位男性），年龄介於16至69岁。

The study inchcates that the best error pulse width and the competition pulse width are proportional to the sampling period to us and the modulation degree of SPWM; the number of competition pulse are dependent on the slop of us.

均与模数转换的采样周期和调制深度成正比，与载波比成反比；竞争脉冲的个数由us的斜率决定。

With introducing the Proportional to Population Size Sampling technique into resample for the problem of specimen reconstruction effectiveness and rationality, a neural network ensemble method based on the PPS technique was proposed, which could improve the accuracy of individual network and the differences among individual networks; and a new dynamic selection approach of individual network in a neural network ensemble was put forward.

针对样本重组的有效性和合理性问题，将PPS抽样技术引入样本重构，提出了基于PPS抽样的集成神经网络算法，以提高个体神经网络的准确性与差异度，并实现动态选择个体神经网络的神经网络集成新方法。

A data collection at the 3rd week of the postpartum period included 512 postpartum women. They were recruited in the study using proportional stratified quota sampling by birth rate from clinics and hospitals in Kaohsiung City in the southern part of Taiwan.

研究资料在产后第三周进行收集，以南台湾的高雄市医院和诊所的新生儿出生率为依据，采用比例性分层取样法，共计512位产妇参与本研究。

The subjects were selected by the "probability proportional to size" sampling method from Taipei County from February to July 1988. A total of 2,367 mothers of children were questioned in personal and/or telephone interviews. The response rate was 74%.

以等机率分层分段抽样方法，自台北县内选取12至23个月大之幼儿为样本，於民国七十八年一月至七月间，针对幼儿母亲以家庭访视和电话访问方式，共收得2，367位个案资料，完访率达74%。

The results have been adopted as the reference frame of the multi-stage, PPS (Probability Proportional to Size) sampling design of the 2005 National Health Interview Survey in Taiwan.

本文结果亦已被2005「国民健康访问调查」所采用，做为进分层多阶段、抽取与单位大小成比之等机抽样设计之考。

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。