取样

On the basis of such research, it also presents a portable gravity corer, which is regarded as a suitable sediment sampling tool for environmental research sectors.

研究了重力取样器的取样技术，并在此基础上成功设计了一种便携式的重力式取样器，非常适合环境研究机构的沉积物取样工作。

Firstly, sample data stream by two neighbor windows of given length. Then the sampling data is projected to normalized high dimension feature space and the two minus hypersphere models of two window sampling data sets are constructed respectively. Finally, detect change by computing cosine of inclination angle of two centrals of hypersphere.

该算法首先以给定长度的两相邻时间窗口对数据流取样，然后以支持向量数据描述方法将这两相邻时间窗口取样的数据流子集映射到规范化的高维特征空间，并分别建立描述这两相邻时间窗口取样数据流子集映像的最小超球模型，最后通过计算两超球之间的球心矢量的夹角的余弦，度量该两相邻时间窗口取样数据流子集的相似性检测模式变化。

Identify the lot to be sampled, mass of increment and number of increment.

a在开始取样工作前，确定取样交货批、取样单元和取样量。

The sampling of complicated materials were investigated. The relationship between the composite sampling variance and the number of increments was studied. The quantitative equation for estimating the composite sampling errors directly from the physical and chemical parameters of the population with multinomial distribution theory was presented. Monte Carlo simulation technique was employed to verify the above theories.

对于复杂物质的取样，研究了分层性物质的组合取样误差与份样数目之间的关系；采用多项分布理论，提出了组合取样误差公式，建立了组合取样误差与被研究总体的理化参数(如组分含量、质量分数等)之间的定量关系，通过Monte Carlo模拟技术对此进行了验证。

Eight hierarchical clustering methods including single linkage method, complete linkage method, median linkage method, centroid method, unweighted pair-group average method, Wards method, flexible-beta method and weighted pair-group average method were combined with three sampling strategies, random, preferred and deviation sampling to develop 24-core collections.

川最短距离法、最长距离法、中间距离法、重心法、不加权类平均法、离差平方和法、可变法和加权配对算术平均法等8种系统聚类方法，结合随机取样法、优先取样法和变异度取样法等3种取样方法，发展了24个水稻核心种质库。

Our company has designed and produced successfully series of Fast Response Sampler which are the newest units for sampling by absorbing the advanced technology from abroad They boast a series of strong points,such as fast response to the sampling,simple operation,high accuracy and so on,It is an ideal unit for sampling.

科学技术的进步，推动着检测技术的发展，我公司在学习国外先进技术的基础上研制成功，并已投入生产快速取样器系列产品，是最新颖的取样装置，它具有取样快速、制样简单、质量优良等一系列优点，是一种理想的取样工具。

By the introduction of the theory of sampling constant presented by Ingamells and Switzer, the stratified sampling for segregated bulk materials were studied.

将Ingamells-Switzer取样常数理论引入分层性固体物质的取样研究，提出了分层取样的最优化设计方案，推导出了各层取样量及分层取样方差极小值计算公式。

When point sampling is used, the system chooses one sample texel or the other, and the result can change abruptly from one texel to the next texel as the boundary is crossed.

当使用最近点取样时，系统要么取样一个texel，要么取样另一个，这样当纹理地址从一个texel移向下一个texel时，取样得到的texel会突然改变。

The invention is characterized in that the mouth of a sample tube is provided with a four-way valve and a buffer tank provided with a jacket, the sample in the buffer tank is blown by nitrogen gas to be completely fed into a sample bottle to realize accurate sampling.

一种用于高温高压下液固体系的密闭取样装置及取样方法，其特征在于，在取样管口设置四通阀和缓冲罐，缓冲罐带夹套，缓冲罐中的样品通过氮气的吹扫完全进入取样瓶中，可保证取样的准确性。

Preliminary results show that the sampling uncertainties for 16 elements are better than 1% on the sample sizes above 1 mg by using INAA, those for 7 elements are better than 1% on the sample sizes of sub-mg by using PIXE, and for 3 elements Cu, Fe, and Rb, they are better than 10% on the sample sizes equal to or larger than 7.5, 9.6, 42.4 ng, respectively.

初步结果表明：在有效取样量几百μg的条件下，取样不确定度好于1%的有7种元素，在亚ng到几十ng的取样量下，Fe、Cu、Rb的取样不确定度均小于10%，其中，Rb的取样不确定度小于5%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。