查询词典 sampling

Undergraduate students from a certain university were recruited by quota sampling.

根据上述研究目的，采用配额抽样方式选取某大学学生为研究对象。

Finally, the paper, taking Congaing Branch of CCRI as a case, analyzes the change of its motivation mechanism for human capital in the course of system transformation and stress is put on the analysis of staff members demands and the reinforcement means to be taken by choosing investigation objectives with mutual-controlled quota sampling method, interview and questionnaire investigation.

最后以煤炭科学研究总院重庆分院作为案例，分析了该院人力资本激励机制在转制过程中的变化，用相互控制配额抽样法选出调查对象，采用面谈和问卷调查相结合，重点分析了职工的需要和采取何种强化手段。

Employ be market research in the statistics means, adopt the quota sampling, divide into groups consumer on the basis of the revenue against the age.

本次研究主要是针对的上海宝山地区的购房群体，使用的是统计学中的市场调查的方法，采用配额抽样，根据收入与年龄将消费者进行分组，并结合常用统计软件 SPSS ，主要运用描述统计、因子分析的统计方法对调查数据进行分析，得出潜在和目标消费者定位分析与房产定位问题。

Methods In this cross-sectional study, a structured questionnaire was administered to 352 nurses recruited by quota sampling of 1198 staff nurses at a medical center in central Taiwan.

结果 研究对象平均年龄为邺岁（范围20-58岁），利用描述性统计分析得知研究对象的芳香疗法知识偏低、态度趋正向，仅99位(28.1%)护理人员有使用芳香疗法的行为。

A owner squestionnaire surveyby quota sampling, was carried on among the Wuhan、 Shenzhen 、 Huangshi、 Foshan and other places private vehicleins in addition to individual interviews.

在实证方面，笔者以抽样调查的方式在武汉、深圳、黄石、佛山等地对车主进行了问卷调查和个别访谈。

Cross-sectional study was conducted via quota sampling were employed. A total of 238 community elderly who were above 60 interview by trained communitynurses. Major findings were summarized as follows.

研究设计为横断式调查研究方法，采取配额选样方式，个案来源为居住於台北县内60岁以上之社区老人，研究者以结构式问卷至社区中进行访谈，共完成238位符合收案条件的社区老人。

Methods Through a quota sampling, a total of 1280 migrants wore recruited from 7 different working places (where migrants were often employed) to he administered a face-to-face anonymous interview.

采用配额抽样，一对一、面对面匿名调查形式，对外来流动人口较为集中的6类工作场所里的1280名外来人员进行流行病学调查。

Through literature review and advanced research, this study developed the related scales –"knowledge sharing intention scale,""team culture scale" and "service innovation performance scale." Using the quota sampling method, questionnaires were distributed to 36 international tourism hotels. Six hundred twenty one valid surveys were returned from 23 hotels.

研究者透过文献与前导研究，发展出本研究之相关量表-「知识分享意愿量表」、「团队文化量表」及「服务创新表现量表」，以配额抽样方式对36家国际观光旅馆进行问卷施测，有效问卷共回收621份（共23家）。

It used Quota Sampling with target subject group of local residence in Taipei district of TenMou, collected 265 valid surveys, went through numerous allocation, factor analysis, ANOVA analysis, Regression analysis, and Chi-square test analysis of variance population, characteristic and life style,shops' image, motivation in purchase with satisfaction and return purchases.

使用配额抽样法，以台北市天母地区的民众为抽样对象，回收有效问卷228份，经次数分配、因素分析、ANOVA分析、回归分析、卡方检定对人口统计变数、生活型态、商店形象、购买动机与满意度及再购意愿进行统计分析。

On the basis of comparison of several algorithms of the calculation of unstable resonator"s mode. Fast Fourier transform method is chosen in this paper. The model of multi-layer distribution of gain is established. Sampling granularity in real space used in FFT, quotient of guard band and distance between subsections are made certain respectively. The convergence criterion of root-mean-square of plural y which is the quotient of the optical field"s distributions separated by one pass is established. Under the circs of multi-kind of distribution of gain and different measurement of distortion, the output optical field distribution is calculated.

在比较了各种计算腔模方法的基础上，根据角谱传播理论，选择FFT算法，建立谐振腔内多层增益分布模型，分别确定了FFT算法的空间采样间隔、保护带系数和分段计算的距离，选取光场往返一次之比的均方根值收敛准则，计算多种增益分布、不同镜面变形时的谐振腔输出光场分布，同时计算该光场的远场分布和传输有限距离之后的分布。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。