灵敏度分析

With the development of science and technology, sensitive, rapid, reproducible, simple and accurate analytical methods are required for the determination of trace elements in geological, biological and environmental samples. The direct determination of extremely low concentration of trace element with modern atomic spectroscopic method, such as atomic absorption spectrometry is so difficult. On one hand, the limitations are associated not only with the insufficient sensitivity of these techniques but also with matrix interference.

随着科学技术技术的发展，在进行地质、环境、生物等样品中痕量金属元素的测定时，常常要求达到ppb级的水平，虽然火焰原子吸收分光光度法具有很高的灵敏度，但是要直接测定这些样品中的痕量组分却很难，这是因为，一方面，样品本身的物理化学状态有的不适合直接测定，或组分的含量低于分析方法的灵敏度；另一方面是存在基体干扰。

In addition, some chemiluminescence reactions possess unique properties, which have allowed some useful assays to be developed.

在上述样品的分析中，化学发光分析法的高灵敏度弥补了分光光度法在灵敏度上的不足，因此得到广泛应用。

By using Monte-Carlo simulation and empirical equation, the sensitivity of a CdWO4-photodiode detector under the radiation of 9MeV LINAC, 6MeV LINAC and 60Co source was estimated and compared with the measurement data.

分析了由CdWO4晶体耦合光电二极管所组成的探测器单元探测灵敏度的决定因素，采用蒙－卡计算、经验估算等对其在高能加速器和60Co源下的探测灵敏度进行了估算，并和测量值进行比较。

In order to create structural optimization model with aeroelastic constraints, dual lattice method is used to evaluate the unsteady aerodynamic force and V-g method is used to estimate the critical flutter speed.

作者采用子结构技术进行了结构的静动力分析，推导出基于"静载模态"概念的子结构响应的灵敏度计算方法，使得子结构响应分析和灵敏度计算在程序上融为一体。

According to the model, the reasons for electric nonlinearity for sensitivity is analyzed. This paper points out that the equivalent functions of nonlinear resistors in the circuit can be simulated by a voltage-controlled source and its expansion function, showing the behavior of electric nonlinearity for sensitivity.

依据此理论模型，对灵敏度电压非线性现象的成因进行了理论分析，并利用其中受电压控制的电压源及其扩展功能来模拟非线性扩散电阻在电路的等价作用，进而显示出压力传感器灵敏度电压非线性的成因。

Use the method of summary receiver operation characteristic curves to evaluate the accuracy.

由于诊断试验的性能不仅由灵敏度决定，也由特异度决定，本研究采用诊断试验Meta分析特有的SROC分析的方法将灵敏度与(1—特异度)间进行线性的变换，定性和定量地比较~(18)FDG-PET和CT、MRI诊断的准确性。

In order to compare the convergence of the importance sampling based reliability sensitivity analysis and Monte Carlo based reliability sensitivity analysis, the variance and variation coefficient of the reliability sensitivity assessment are derived in this contribution.

为了比较重要抽样与直接Monte Carlo方法在分析可靠性灵敏度时的收敛性，推导可靠性灵敏度估计量方差和变异系数的计算公式，近似计算重要抽样可靠性灵敏度估计量在给定置信度下的置信区间。

The paper introduces the return circuit sensitivity in the experiment of the internal resistance by sensitive amperemeter with semi-bias method.

在半偏法测灵敏电流计内阻的实验中引入回路灵敏度，并采取近似处理找出回路灵敏度不足产生误差的最小值范围，同时从理论和实验两方面对回路灵敏度不足产生误差的原因进行分析，从而找到减小这一误差的途径。

The finite element method and electro mechano acoustic method are used to analyse the mechanical performance,sensitivity,and frequency response of the condenser microphone .

针对所研制的电容式微传声器在理想模式下的工作原理，建立了有限元分析模型和声电模型，从理论上分析了器件的机械性能、灵敏度以及频响特性，得出了结构优化的设计原则，即要想得到高灵敏度的微传声器器件，必须考虑采用尽可能小的空气隙厚度和声学孔尺寸以及具有较小内应力的声学振膜。

Research and implementation of multi-dimension management of meta-data based on meta-meta-model;2. A Data Analysis System to the Banking Industry Based on the J2EE Architecture and Multi-dimension Data Model;3. Objective According to actual terminal phaco energy effect in intraocular space, multi-dimension al energy control model was put forward on the base of traditional foot pedal control,which includes controls of energy direction,distance and prevention.

针对扩散硅压力传感器在实际应用中对温度存在交叉灵敏度的问题，文章采用改进的多维回归分析法和BP神经网络法两种实用的智能化数据融合方法对压力传感器输出进行处理，以消除非目标参量对传感器的影响；研究结果表明这两种方法均能有效地抑制交叉灵敏度，减小灵敏度温漂和零点温漂；由于这两种融合算法具有各自的特点，因此可应用于不同要求的智能传感器系统中。

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