This paper was focused on deriving the B nomogram of L-moments method,which was used to estimate the sampling errors in frequency analysis.
在设计洪水的抽样误差估计中,采用保证修正值系数B方法估计均方差简单易用。
The results show that the former sampling error becomes much less than the latter.
根据我国频率计算中广泛采用的Ｐ－Ⅲ型分布，应用统计试验方法，分别对仅由历史调查洪水和实测洪水组成的不完全系列，以及加入考虑流量误差情况下的古洪水资料后的系列进行了计算，得到后者比前者抽样误差大为减小的结论。
The operation scheme defined by the model has been applied to five hydropower stations on the upper reaches of the Yellow River according to various possible inflows for the analysis of expected energy output and sampling error.
以该模型所确定的调度方案为依据，对黄河上游５座水电站的各种可能来水进行调度，从而对这些水电站的期望电能及其抽样误差作出分析。
Investigation on the sampling error of two-component Particulate mixture is very essential to the general theory of sampling for chemical analysis.
本文对二元颗粒混合物按质量取样的误差进行了深入研究，详细分析了混合物的各种参数对被测组分含量取样误差的影响，应用MonteCarlo技术对取样进行了模拟。
,a quantitative model to measure the sampling error,and to estimate the error efficiently.
在关联规则挖掘过程中,现有的取样误差量化方法和快速估计算法存在着不足,对此提出了一种新的取样误差量化三元组模型,并在实验观察和理论分析的基础上给出了一种取样误差的快速估计算法———主误差区间估计法。
The results showed that the yearly average sampling error at fixed spot was 5.
利用2007年河南省30个农业气象基本观测站每旬的土壤水分测定记录,对不同地段、不同土壤层次的取样误差进行了初步分析,结果表明:固定地段土壤水分样本的年平均相对误差为5。
It can't avoid that the problem of transforming a continue signal into a discrete digital series in the process of design a digitalized signal sampling system,so it is importance to discuss the sampling error for Hi－Fi digital sampling system.
因此，采样误差的讨论对高保真的信号采集具有重要意义。
The Gauss width of focal spot which is too small results in the sampling error while using CCD as the centroid detecting device of Shack-Hartmann Wavefront Sensor(SHWS) in Adaptive Optics(AO) system.
自适应光学系统中采用CCD作为哈特曼波前传感器的光斑质心位置探测器时,由于光斑的高斯宽度较小会带来大采样误差。
Aiming at the sample error and its poor representativeness, this paper introduces several insertoffset methods of runoff for water resources evaluation combining with the properties of hydrology in Baicheng area by the theory of hydrology.
本文针对水文系列的抽样误差代表性不好的问题,利用水文学原理,结合白城地区的水文特性,谈几种在水资源评价时径流量插补的方法。
This paper mainly discusses principle and application of sample error in hydrological analysis, and analyses an example.
阐述了抽样误差的原理及其在水文分析中的应用，并做实例分析。
The correlation degrees between subjects in multi-subject sampling survey are discussed in three cases, in view of every condition, the relevant sample orgainzation and the calculating methods of target variable, sample size and sample error are put forward in this thesis.
本文将多主题抽样调查中各主题间的相关程度分成三类进行了讨论 ,针对每一种情况 ,提出了相应的抽样组织形式 ,目标量的估计方法 ,抽样单位数和抽样误差的控制方法。
sampling error of hydrologic estimator
水文估计量的抽样误差
To Learn Sampling Method of Long-Tables of the Fifth Population Census of China by Looking at the Sample Error;
从抽样误差看“五普”长表抽样方法
Research of Non-sampling Error on Marketing Research Based on Inquiry Approach
询问法市场调研中的非抽样误差研究
Monte Carlo simulation of sampling error of homogeneous test
均匀性试验抽样误差的蒙特卡罗模拟
Q: Would different sample size for different questions affect the sampling error?
问：个别题目的样本数目会否影响抽样误差？
The Non- Sampling Errors and Counter Measures of Internet Surveys;
网络调查中的非抽样误差及其预防措施
As for the Directors of Bureaux, compared to two months ago, only Arthur Li's support rating registered a significant increase, all other changes are within sampling errors.
局长方面，对比两个月前，只有李国章的评分有明显升幅，其馀变化都在抽样误差範围之内。
Research on comparisons among cement sampling methods' error
出厂水泥不同抽样方法误差比较研究
Discussion on direct extraction sampling type CEMS measuring error
直接抽取采样式CEMS的测量误差分析
A statistical sampling or testing error caused by systematically favoring some outcomes over others.
偏差由于系统上的结果偏差而导致的统计抽样或试验的错误
A Remediation Method in the Case of Sampling Frame Missing Population Units;
对丢失目标总体单元抽样框误差一种补救方法的探讨
Origins Analysis and Post Screening of Errors of Measurement in Corn Yield Sample Surveys;
农产量抽样调查中计量误差来源分析及其事后甄别
A Sample Survey Method and the Variance of the Estimate on the Sensitive Question of the Finite Population;
有限总体下敏感性问题的抽样调查方法与误差估计
Error Compensation Method and Rapid Accuracy Analysis for Missile Based on Latin Hypercube Sampling
基于拉丁超立方抽样的导弹快速精度分析与误差补偿方法
covariance for simple random sampling
简单随机抽样协方差
ratio and difference estimation sampling
比率差异推算抽样法
relative variance for cluster sampling
整群抽样的相对方差
Analysis on Errors and Adjustment of Sampling Frame in Commercial Statistic Sample Survey;
浅析商业抽样调查中抽样框偏误及调整