取样

Starting from the sampling theorem,the fast Fourier transform computation of angular spectrum diffraction formula and its inverse operation are studied.

从取样定理出发，对角谱衍射公式及逆运算的快速傅里叶变换进行了研究。

Results In measurement with improving five-step iodometry method,it was optimal that the total concentration of the oxides in the sample solution was 1000-3000 mg/L and the sample volume was 2-5 ml.

结果改进五步碘量法测定中，样品溶液中氧化性物质的总浓度在1000-3000mg/L，取样量为2-5ml为佳。

The relational database is used to organize data. The pre-processing with graphical human-computer interaction and 3D visual output is applied as a dramatic analysis method for engineer including data form, sample contour, isobar graph, vector graph, histogram and so on.

该系统以关系型数据库组织各种数据，完全实现了人机图形交互式前处理及三维可视化输出，为工程人员提供了包括数据表格、取样曲线、等位线、等位面图、向量图及二元函数图等一系列生动形象的数据分析手段。

From October to November in 2005, the soil macrofauna communities at 7 soil using types were investigated: paddy field, kaleyard, orchard (0), no vegetation wilderness, nursery, yard and lawn. Researches showed that there were 1052 soil macrofauna individuals belonged to 19 orders, 8 classes, 3 phyla.

2005年10~11月对金华市市区北部不同土地利用方式下的大型土壤动物群落与土壤理化性质的关系进行了研究，在水稻田、菜园、果园、无植被荒地、苗圃、庭院和草皮绿地7种不同利用方式的土地中取样，共获得大型土壤动物1052只，隶属3门8纲19目。

The study on diet diversity of a group of Francois' langur over 11 months was conducted by focal animal sampling method in Fusui Nature Reserve, China.

采用焦点动物取样技术研究了扶绥自然保护区内一群黑叶猴的食物多样性。

In chapter 2, we first introduce the overall structure of the biological larvae pressure-retained sampler.

第二章先介绍了生物幼体保压取样器的总体结构。

Next, combining robust stability concept, T-S fuzzy model approach, and model predictive control strategy, at each sampling time, the predictive state feedback controller is calculated by minimizing a least upper bound for MPC infinite horizon objective function.

其次，结合强健稳定性理论，T-S模糊模型技术，和模型预测控制策略，在每一个取样时间，透过极小化模型预测控制之无限水平目标函数的最小上界，可计算出预测状态回授控制器增益。

The detailed characterization of a rotating alq'n col― lector to sample ambient fog droplets for chemical analysis is discussed.

本文讨论了对周围雾滴进行取样以便进行化学分析的旋转臂收集器的详细描述问题。

Result:There are problems in the management of transfusion reaction,such as incomplete registration,limited range of samples and insufficient testing percentage of the cases,inconsistence in the conclusion of two testing methods of drugs-domestic:hare testing method and limuloid testing method,unawareness of the medical staff and ineffective investiga...

结果 ：输液反应管理中存在以下问题：登记不全；取样范围局限和热原检测比例不足；两种药物热原检测方法—家兔试验法与鲎试验法的结论有不一致性；医务人员思想认识模糊，原因排查不力。结论：健全医院输液反应管理制度，做好各种原始记录，在输液反应热原检测中，鲎试验法更为可靠及时

As a result, both the line and sample coordinates can be determined more accurately.

结果显示，线列与取样像坐标之匹配精度，得以提升0.2~0.4 个像元。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。