灵敏度分析

It is shown that by using ECT,both the sensitivity and reliability of the relay protection are improved,and the operation property of conventional two-stage percentage restraint differential protection is meliorated.

以线路光纤纵差保护为例，利用实验数据分析了采用ECT后纵差保护的性能，指出采用ECT后保护在区外故障可靠性、区内故障灵敏度方面有显著提高，继而改进了传统的二段式比率制动差动保护动作特性。

The main contents include bringing and characters of X-ray, and offects when it acts to substance. After the attenuation law of X-ray which perforates substance and X-ray defects testing principle were analyzed. Influence factors of X-ray imaging sensitivity was disussed and effective restraining measures were brought forward.

主要内容包括X射线的产生、性质及它与物质相互作用时发生的各种效应；通过分析X射线穿过物质后衰减规律和射线探伤的原理，探讨了射线成像灵敏度的影响因素，并提出相应有效的抑制措施。

The high-performance liquid chromatography with UV detection was developed for quantifying the concentration of DM in intestine perfusing solution .

DM浓度在0.1～100μg/ml范围内呈线性关系，相关系数大于0.9943，定量限约为1ng，各生物样品中的DM和TMPH的提取回收率均在90％以上，DM的日内、日间RSD均小于7％，方法准确可靠、方便快捷、灵敏度高、专属性强，很好地满足了本文中的各项分析要求。

The references of every method were summarized from the detection systems, sensitivities, applications, and so on.

在每种分析方法中，主要从测定体系、测定条件、灵敏度以及实际应用等方面进行归纳和概述。

Therefore, it is important to improve the sensitivity of these methods for the detection of specific DNA sequences.

因此，建立灵敏度高、准确性好的非放射性标记DNA分析方法具有重要的意义。

Both cTnT and cTnI are more useful for stratifying risk in acute coronary syndrome patients than CK-MB.

在症状发生后的12小时采样分析cTnT，诊断MI的临床灵敏度和特异性分别是98.2%和8.8%，临床特异性降低与检测到微小心肌受损有关。cTnT和cTnI比CK-MB预测急性冠状动脉综合症危险性更有用。

Methods : Based on the evaluation indicators to establish the principle of combining clinical departments of the Hospital Development Goals (high quality, high efficiency and low consumption, development, and satisfaction). through lots of documents and inspection of the hospital management information absorption of current research, literature, expert advice and cluster analysis methods were selected representative, good workability, high sensitivity, have good science, independence easy evaluation of 27 indicators, the establishment of hospital clinical departments integrated evaluation system weighted TOPSIS RSR combined with the right selection by a three-level hospitals 31 clinical departments to conduct verification .

根据评价指标建立的原则，结合医院临床科室的发展目标(优质、高效、低耗、发展、满意)，通过查阅大量文献和有关医院管理方面的资料，吸收当今的研究成果，运用文献法、专家咨询法和聚类分析法相结合的方法挑选出代表性强、可操作性好、灵敏度高、有较好科学性、独立性易于考评的27项指标，建立医院临床科室综合评价指标体系，采用加权TOPSIS法与RSR法结合对所选取某三级甲等医院31个临床科室进行验证。

The F1,F2 absorption double lines, which is composed of two lines 6MHz apart, was high sensitively detected by use of the wavelength modulation and harmonic detection techniques.

利用波长调制和谐波探测技术对频率位于6105.626cm~(-1)附近的两条间隔仅6MHz的F1、F2吸收双线进行高灵敏检测，从理论和实验上同时分析了影响本实验灵敏度主要噪声原因。

Information entropy, coincidence degree and its standard errors of axle centre trail quadrant area vector under different bearing states are extracted, the sensibility degree of the different parameters for the bearing states in different quadrant division is analyzed. By modifying the parameter compute method, the sensibility degree is improved.

提取各典型状态下轴承轴心轨迹象限面积向量的信息熵，和多周期面积向量的重合度以及重合度标准差，分析在不同象限划分下，各特征参数对状态的敏感程度，通过改进特征参数计算方法，提高对状态的灵敏度。

In chapter eight, the new software system named"simulation and protection scheme analysis of synchronous generator with internal armature winding faults", is developed and introduced. This software can be broadly applied to the analysis and protection study of synchronous generator with internal armature winding faults.

该系统能方便地对任意尺寸、槽数、极对数、绕组型式以及不同中性点联接方式等的大型水轮发电机和汽轮发电机进行各种内部故障电气量的计算，同时能对内部故障保护方案进行优化组合并校核其灵敏度，可广泛应用于大型同步发电机定子绕组内部故障分析与保护方案研究等场合。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐