查询词典 sampling method

This paper integrated the experts' judgments with grids as the sampling strategy in an abandoned pesticide plant in northern China, and applied a geostatistical method, inverse distance weighted interpolation, to simulate the pollutants- and risk spatial distribution.

本文以北方某废弃农药厂为例，结合专家判定采样法与网格采样法，采用地统计学方法中的反距离加权空间插值法，分两种情形将大于土壤环境基准值的区域划定为治理范围。

A new jitter measurement method is developed,which is based on equivalent sampling.

提出了关于时钟jitter的一种新的测量方法。

A new sampling scheme for training based on the number theoretic lattice is proposed. Illustrative examples are given to verify the effectiveness of the proposed method.

文章介绍了用模糊逻辑建模的过程，提出了用数论网格的样本点生成方法，最后用实例说明了用于器件与电路建模的效果。

In the paper its introduces the principle of GPS location and synchronous sampling transfer method.The code and frame of GPS's data is also introduced.

本文主要是利用Visual Basic 强大的集成开发环境和快速的创建各种应用程序的能力，包括非常流行的多媒体应用程序和各种图形操作界面，来编写一个实时接收并显示的窗体应用程序。

By this method, the radar system can utilize fewer sub-pulses and lower AD sampling rate to measure stationary and moving targets in large range window with wideband signal.

利用较少的子脉冲和较低的系统采样率，该方法可实现大带宽信号对大距离窗口内静止和运动目标的观测。

The invention discloses a measuring method for firing conclusion and gas flow rate in the process of liquid, gas fuel firing, which comprises the following steps: positing three points on fuel transmission pipe, air pipe and gas pipe, setting regular measuring device or sampling device, measuring the flue's element and flow rate of point 1, air element of point 2, and gas element of point 3, inputting the data of three points into computing unit, computing air flow rate Mair, gas flow rate Mgas and firing conclusionηB by the element of air, flue, and gas and flue flow rate Mburn.

本发明公开了一种液体、气体燃料燃烧过程中燃烧完全度和燃气流量的确定方法，步骤为：在燃料输送管道、空气管道和烟气管道上分别设置三测点，并安装常规的测量装置或取样装置；分别测量测点1的燃料成分和流量；测点2的空气成分；测点3的燃气成分；将三测点的测量数据输入计算单元；根据空气、燃料和燃气的成分以及燃料流量M burn ，计算空气流量M air 、燃气流量M gas 和燃烧完全度η B 。

Sampling technology of malodor was completely described based on the existing national standard method.

针对现有国标方法中的恶臭采样技术进行了更为全面的叙述。

The method uses Chinese pharmacopoeia 2005 edition dissolve of 2 appendices XC goes out degree determine the first law, it is menstruum with 0.1 Mol.L-1 hydrochloric acid, rotate speed is 75 R.min-1, sampling time is 30 Min, determine in good qualities of 287 Nm wave its dissolve goes out degree.

方法采用中国药典2005年版二部附录XC溶出度测定第一法，以0.1 mol.L-1盐酸为溶媒，转速为75 r.min-1，取样时间为30 min，在287 nm波优点测定其溶出度。

Results: The good linear range of method was 10 to 1000μg/ml (T=0.9999) with the correlation coeffivient of 0.9999, and the limit concentration in air was 0.2 mg/m^3 with the average relative standard deviation less than 5%(n=6). The average sampling rate ranged from 96.6 to 100%, and the breakthrough capacity of l00mg activated charcoal was 4.7mg. The average desorption rate was 97.6%, and mesityl oxide absorped in activated charcoal tube was stable for 7 days and can be detected accurately with other gas coexisting in the air of workplace.

结果：异亚丙基丙酮浓度在10~1000μg/ml内呈良好线性关系，相关系数0.9999，最低检出浓度为0.2mg/立方公尺，相对标准偏差＜5%(n=6)；气体采样效率≥96.6%，100mg活性炭对异亚丙基丙酮的穿透容量为4.7mg，平均解吸效率97.6%；活性炭样品室温下可保存7天；丙酮、丁酮、异佛尔酮、苯、甲苯、二甲苯等共存物不干扰测定。

The method applies the progressive optimization theory to derive preview control input based on minimalization of performance index of trajectory error area between desired and actual trajectory, the feature of preview control input is that feeback and preview feedforward coefficients are changed in every sampling time.

该方法从目标路径与实际路径之间的面积误差评价函数值最小化观点出发，运用逐次最优化原理来求取最优预见控制输入。

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。