查询词典 sampling fraction

This method is based on our blowup sampling method of algebraic curves, which solves the difficult problem of sampling around singular points in essence.

这种逼近建立在所提出的代数曲线胀开采样的基础上，这种胀开采样算法从本质上解决了奇异点周围采样难的问题。

Scan sampling and Focal sampling methods were utilized to determine the behavior mode, daily rhythm and behavior trends of the nestlings of Great Bustard;Each growth indicator were measured to obtain the growing curves and equations;Correlation analysis was taken between the behavior and growth indicators of young Great Bustard to understand the relation between them.

本实验采用扫描取样法和目标取样法相结合观察大鸨雏鸟的行为模式，研究了大鸨雏鸟行为日节律及其行为随日龄增长的强度变化趋势；定期对大鸨雏鸟各生长指标进行测量，总结大鸨雏鸟的生长发育规律，拟合生长曲线和方程；对大鸨雏鸟的行为和生长发育指标进行相关性分析，确定生长指标与行为变化规律之间的关系。

Methods Surveys and controlled analyses were conducted with the PSTRI, SCL90, EPQ in 112 nurses of tumor department selected with holism sampling and 120 ones of general clinic department selected with random sampling from the second、fourth hospital of Zhuzhou city and the centrical、first hospital of Xiangtan city.

整群抽取112名湖南省株洲市四所医院肿瘤科护士为研究对象，其它临床科护士120名为对照。采用心身压力测试量表、症状自评量表、艾森克个性问卷对两组进行评定分析。

In February 2000, the following flow charts and recording sheets were improved and put into use in 2001 by the former General Administration of Inspection and Quarantine: the whole CIQ residue monitoring work flow chart, CIQ residue monitoring sampling flow chart, CIQ residue monitoringsampling sheet, CIQ residue monitoring sampling tag, CIQ residue monitoring delivery sheet, CIQ residue monitoring testing results report sheet and the result statistics table.

2000年2月原国家出入境检验检疫局制定并修订完善了《中国动物及动物源食品残留物质监控计划》的工作流程图、CIQ残留监控取样流程图、CIQ残留监控取样单、CIQ残留监控样品标签、CIQ残留监控送样单、CIQ残留监控检测结果报告单、CIQ残留监控结果统计报表，并在实施2001年度残留监控计划中启用。

In this paper, We firstly present a nonuniform sampling DCT method based on the relationship of Chebyshev polynomial interpolation and DCT, in which, the sampling points are chosen as zeros of Nth degree Chebyshev polynomials of the first kind.

文章首先利用Chebyshev多项式插值与DCT变换之间的相互关系，提出了基于第一类Chebyshev多项式的第N次多项式的零点作为非均匀取样点的DCT变换方法。

Methods The study was conducted by cluster sampling and stratified sampling.

采用整群抽样和分层抽样相结合的调查方法。

For larger populations, there are two methods of surveillance that are most applicable: systematic random sampling and cluster sampling.

对于数量较多的人群，有两种最适用的监督方法：系统随机抽样和分组抽样。

The the probabilistic forecasting method of the error between the sample mean and expectation value of the random variable utilizing the central limit theory was researched, then the mathematical formula for the relation between sampling size and variance coefficient of loss of load probability was analyzed. Furthermore, the formulas for the relation between confidence intervals of variance coefficient and sampling size are deduced.

基于中心极限定理深入研究随机变量的样本均值与期望值之间误差的概率预测方法，在此基础上分析失负荷概率(loss of load probability，LOLP)指标的方差系数和样本容量之间的关系表达式，导出方差系数给定时的样本容量置信区间公式及样本容量给定时的方差系数置信区间公式。

"Sampling",In signal processing, sampling is the reduction of a continuous signal to a discrete signal.

"，"在信号处理领域中，取样是将信号从连续时间域上的模拟信号转换到离散时间域上的离散信号的过程。

Wherever sediment cores were collected by gravity corer,the length of the cores became shorter than the original length,and this compaction processes take place not only inside the sampling tube but also beneath the bottom of the sampling tube.

其中，采集柱状样是传统的、也是最主要的一种手段[6]，通过分析柱状样沉积物可以获得相关的沉积环境和沉积动力[7]、沉积物组分的的变化[8~9]、沉积物

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。