查询词典 systematic sampling

The results indicate that the vertical component of wind velocity variance remains unchanged but the hori- zontal component increases as the sampling length increases.

结果表明：在进行湍流统计特征量计算过程中，采样长度增加时，垂直分量风速方差无明显变化，水平分量风速方差增大；随着风速的减小以及稳定度参数 z/L的增加，采样长度对计算结果的影响变得更为突出。

Based on the technique of transparent degree ruler, the operator of color composition is improved in the unchangeable sampling range. When the classifications of the volume data are small, this operator can obviously accelerate the rendering procedure.

对于稳定采样区间的颜色合成，提出了基于透明度标尺的颜色合成新算子，该方法对于类属较少的体数据，其绘制加速效果是十分明显的。

Two kinds of auto pulp sampling systems used in Baihualing Concentrator are presented in this paper.

介绍了两种自动取样系统在百花岭选矿厂生产检测中的使用情况，它们成功地取代了使用多年的人工取样，提高了所取试样的代表性，增强了对生产的指导作用。

The main topics include probability space, discrete distribution, continuous distribution, multivariable distribution conditional distribution and the sampling distribution theory.

课程方要课题含机率空间、离散分布、连续分布、多变量分布及抽样分布等的简介。

We give the expression and confidence interval for failure probability in direct sampling method .

本文讨论了蒙特卡洛模拟在结构可靠性分析中的应用，并给出了直接抽样法中失效概率的计算公式和置信区

Introduced are specialities,structures and parameters of some newly developed well logging tools used by eminent well logging companies in the past few years,such as the new 3-D electrode-type logging tool,the new asymmetrical array induction logging tool,the new micro-resistivity pad tool,the oil-based mud imaging tool,the novel through-casing resistivity tool,the formation tester with an oval pad,the ArmadaTM sampling system and the ConneX perforating system.

介绍了国外测井公司近年来推出的电缆测井新技术以及新型或改进型测井仪器的特点、结构组成及工作参数。主要包括：新型3D电极电阻率测井仪器、新型阵列感应测井仪器、新型微电阻率极板仪器、油基泥浆成像仪器、低污染流体采样技术、新一代油管传送流体采样系统、具有椭圆形极板的地层压力测试仪器和ConneX射孔系统。

The course will begin with a review of sampling plans and contingency table for discrete data.

首先介绍抽样计划和离散数据的列联表。

In processing high sampling data system, discrete time model using delta operator approaches corresponding continuous time model, and the results also tends to the corresponding ones of its continuous counterpart.

在处理高速采样过程时，Delta算子离散模型接近于原来的连续模型，所得结果也趋近于连续模型的相应结果，较好地解决了传统的移位算子方法在高速采样时引起的数值不稳定问题。

In first part,The Theory and Simulation on Reconstruction Algorithms,webuild a well-defined mathematical model for OCT,on which we prove more than 10theorems,analyze and answer a series of significant questions about OCTreconstruction,from existence, uniqueness,continuousness,stability to sampling,resolution,ill-posedness and accuracy.

在上篇重建算法的理论与实践中，我们将OCT抽象为基于n维Radon变换的数学模型，从而分析、讨论、回答了从存在性、唯一性、连续性、稳定件到采样条件、分辨能力以及病态特件和重建精度等一系列在理论和了OCT的重建理论体系。

National system sampling survey of kinds and number of the equipment in institution of disease prevention and controlment, compute equipment assets, and gaps compare with standard.

方法全国系统抽样调查省市县各级疾病预防控制机构的各类设备配置种类和数量，计算设备资产，和标准比较得到缺口。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。