检测

Aiming at phase difference measurement of mass flowmeter,based on actual signal and the zero passage method,the amendatory zero passage method is presented.

针对质量流量计相位差测量，从工程中的实际信号入手，结合虚拟仪器相位差检测的过零法，提出了一种设定阈值的改进型过零法，阐述了算法的检测原理，讨论了影响相位差检测精度的因素，提出了改善精度的技术措施和原则。

The detectable group, biotin-ε-aminocaproic acid N-hydroxysuccinimide ester, is attached to the remaining amino group. A series of multiamine compouds, i. e. ethylendiamine, 1, 6-hexandediamine, triethylenetetramine, tetraethylenepentamine, and synthetic polyarylamide are used inlabelling, it is found that linker arms and steric hindrance effect the detection sensitivity. The probes labeled by 1, 6-hexandediamine and triethylenetetramine can detect 0.1-0.5pg target DNA in dot blot hybridization, and their sensitivities are better than the others.

本文详细考察了乙二胺、己二胺、二乙烯三胺、三乙烯四胺、四乙烯五胺及合成的聚乙烯胺化合物对λDNA探针的标记和检测的影响，发现胺化物链长和空间位阻影响探针的杂交和检测，用己二胺和三乙烯四胺标记的生物素探针在杂交24小时、显色8小时后检测灵敏度达0.1-0.5pg，超过其它胺化物标记的探针。

Recently, people already do many research to shotdetection. But it still have many issue not to solve due to video peculiarity, such ashow to confirm the accurate translate frame, how to detect the amphibolous gradualshot translation, how to select suitable automatic threshold, those still have auniversal effectively method.

近年来人们已经对镜头检测做了大量的研究，但由于视频的特性，镜头检测中还有很多问题没能很好的解决，例如如何确定精确的镜头转换帧，如何检测变化不明显的渐变，如何自动地选取合适的自适应阈值都还没有一个通用有效的方法。

It is introduced that harmonic current in the electric network and harmonic current detecting method based on instantaneous reactive power theory in the paper,and then it presents the current detecting method in the anisomerous mains voltage,aberrance circuit based on instantaneous reactive power theory .

通过对电网谐波和瞬时无功功率理论在谐波检测中应用的分析研究，作者给出了基于瞬时无功功率理论的检测方法在电网电压不对称、存在畸变时的电流检测方法。

Sertoli Cells were treated with SNP. Cell viability, antioxygen enzymes activity and changes of p-38MAPKwere detected.

试验利用硝普钠作为NO的供体，通过细胞活性检测、免疫荧光、酶活检测、免疫印迹等方法检测NO对睾丸支持细胞微丝的影响。

The level of PGE was assayed by spectrophotometer; Meanwhile, 3H-TdR incorporation method was used to detect ConA- and LPS- induced splenocytes proliferation and the production of interleukin-1 and IL-2. The content of antibodies to CII was determined by ELISA method. Pathological examination of articulus tissue was observed by Hematoxylin-eosin stain.

检测小鼠足爪肿胀度并对炎症进行评分；测定胸腺指数和脾脏指数；~3H-TdR参入法检测胸腺、脾淋巴细胞增殖反应；~3H-TdR参入法测定白细胞介素-1(interleukin-1，IL-1)和IL-2水平；ELISA法测定小鼠血清中抗CⅡ抗体含量；分光光度法检测足爪局部产生的前列腺素水平；HE染色法对关节组织作病理检查。

Methods S. epidermidis atlE gene expression level at different phases was detected by RT-PCR, and the accumulation of extracellular DNA at different phases was assessed by spectrophotometric measurements of light absorbance by DNA; DNase Ⅰ was used to study the function of extracellular DNA in biofilm formation and primary attachment. The effects of atlE gene deletion on initial adherent capacity, biofilm formation and extracellular DNA release were studied by construction of atlE deletion mutant via homologous recombination.

采用RT-PCR法检测表皮葡萄球菌atZE基因在不同时期的表达水平，用紫外分光光度计检测DNA的方法检测了相应时期的胞外DNA的释放量，并用DNA酶研究表皮葡萄球菌胞外DNA在生物膜形成和起始黏附中的作用；采用ρBT2质粒同源重组敲除的方法构建了表皮葡萄球菌1457的atlE基因突变株，研究atlE基因敲除突变对起始黏附能力、生物膜形成及胞外DNA释放能力的影响。

To solve the problems of low efficiency and weak detecting ability in limited anomaly types of traditional network traffic detection method, this paper gave a new method that used seven indices to mine the netflow data from routers on the backstone network with applying the slipping window-based algorithm for detecting the bursts of the entropy stream in order to discover anomalies.

为提高异常流量发现的效率，解决传统流量分析方法效率较低、异常检测能力弱的问题，对骨干路由器的netflow流数据采用基于多个信息熵的联合指标并结合基于滑动窗口的熵流突发检测算法来实现网络异常的发现；并利用各指标熵值的相关度分析将指标分类，根据已知的异常类型对每一类指标的异常检测范围作出总结。

It has banausic value in inspecting automobile braking performance and the development of the inspecting instrument.

既有数学模型的推导，方法理论的探讨，又有实际控制系统设计过程，而且设计对象的应用，本文设计的汽车制动性能测控系统具有检测精度高、可靠性好、实时性好等优点，在实际应用中也取得了很好的效果，对汽车制动性能的检测以及检测设备的发展有很重要的实用价值。

A method based on linear singularity analysis of image is presented. The improved method, called Directional Beamlet Transform is better than traditional Beamlet transform about directional information of image and has the ability of representing linear-singularity of image. According to the analysis of linear singularity, edge detection is transferred to detecting singularity point in the coefficient matrix of DBT.

针对基于图像像素点分析的边缘提取方法存在无法同时满足高抑噪性、连续性、定位性等问题，本文提出了方向Beamle 变换方法，在定义图像线奇异性的理论基础上，利用DBT 对图像进行线奇异性分析，依据Beamlet 变换具有的线段提取能力，将图像边缘检测问题转化为方向Beamlet 变换系数矩阵中奇异点的检测问题，以降低噪声点对边缘检测结果的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。