灵敏度

According to engineering practical requirement,by adopting structural frequency sensitivity formula,a scheme dealing with a parameter calculation model for a structure and its structural optimal model is proposed in this paper,and a three-dimensional structure s frequency topologhy optimal method is developed.

根据工程实际要求，利用频率灵敏度公式，提出了结构特性参数计算模型与三维结构优化模型的处理方案，研究了三维结构的频率拓扑优化设计方法和算法。

The calibration curve of the SM2-Kit with standard SM2 inhibitor was typical sigmoid curve fitted to the four parameter logistic equation with the linear detection of 0.625 μg/L to 80.0 μg/L (R2=0.9911), the sensitivity of 0.9 μg/L, the IC50 of 5.82 μg/L and the detection limit of 1 μg/L. The recoveries of SM2 spiked in pig feed were 83.4 %, in pig urine were 89.5 %. The precision and accuracy of the assay as determined by inter-assay and intra-assay coefficient variation was both below 15 %. The SM2-Kit generally had 2.08 % cross-reactivity towards sulfamerazine and little or no cross-reactivity towards other sulfonamides. The dilution solution of SM2 had no effect on results of SM2-Kit. The validity of SM2-Kit in 4 ℃ was above six months.

研究结果表明，SM2-Kit的标准曲线呈典型的S型，相关系数R2=0.9911，符合4参数logit曲线拟合，线性检测范围为0.625 μg/L～80 μg/L，灵敏度为0.9 μg/L，半数抑制浓度(IC50)为5.82 μg/L，检测限为1 μg/L；饲料样、猪尿样的平均添加回收率分别为83.4 %、89.5 %，平均批内和批间变异系数均低于15 %；SM2-Kit与磺胺甲基嘧啶的交叉反应率为2.08 %，与其它磺胺类药几乎没有反应性；基质对SM2-Kit的检测结果影响不大；试剂盒在4 ℃可保存6个月。

Objective:To set up a resonance light scattering method for determination of trace copper in water sample with the sulfhydryl cotton separation-enrichment method.

铜是工业上广泛应用的金属，在环境中分布很广；Cu也是人体及动植物所必需的微量元素，对机体的新陈代谢有重要的调节作用；因此，研究用于测定Cu的高灵敏度方法十分必要。

Among the pesticides detected, sulfureous organophosphates had lower inhibitory ability, but phosphorothionate pesticides could be detected after direct oxidation with N-bromosuccinimide.

针对抑制能力差的硫代型有机磷农药，应用NBS进行氧化前处理，提高酶抑制的灵敏度。

The sensitivity of the superconductor temperature sensor was very high and the time constant of it was very small, thus, it could be used to measure the tiny temperature fluctuation in superfluid helium.

超导温度传感器具有很高的灵敏度和很小的时间常数，故能测量出超流氦浴中很小的温度变化。

In this paper, AM receiver circuit design as the background, in order to improve the sensitivity and selectivity, it is necessary to the use of superheterodyne radio.

本文以调幅接收机电路设计为背景，为了提高灵敏度和选择性，就要采用超外差式收音机。

FEM model of coupled acoustic-structure is set up, modal superpose method is used to deduce sensitivity of response acoustic pressure level to structure design variable.

基于结构-声场耦合系统有限元模型，用有限元模态叠加法推导了系统在动力载荷作用下响应声压级对结构设计变量的灵敏度。

When only using this mode, the disadvantage lies in that in the case of incomplete shielding, a supersensitive electromagnetic receiver can still acquire information

单一使用这种模式的缺点是，如果屏蔽不能彻底，高灵敏度的电磁接收设备还是可以获取信息。

This suggests that SPA-PAMAM-Au nanocomposites could be used as supersensitive optical probe for bioanalyses and medical diagnoses.

SPA-PAMAM-Au纳米复合物粒子可望广泛用作生物分析和医学诊断高灵敏度光学探针。

The results indicated cDNA probe coloration sensitivity of these three symptomless viruses are 5 pg,10 pg and 10 pg differently.

结果表明，这3种病毒探针的检测灵敏度分别为5、10和10 pg。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。