查询词典 sensitivity analysis

In presented method, the correlated variables are transformed into uncorrelated variables equivalently, and the performance functions in the correlated variables space are transformed into those in the equivalent uncorrelated variables space, in which the reliability sensitivity of the system failure probability with respect to the distribution parameters of the uncorrelated variables can be solved by the moment method for the uncorrelated variables. Finally the equivalent relationship between the correlated variables and the uncorrelated variables, the chain rule for derivative are employed to obtain the reliability sensitivity of the system failure probability with respect to the means of the correlated variables.

在所提的方法中，首先将相关变量空间等效转化为不相关变量空间，并将系统多个失效模式的功能函数转化为不相关变量空间的功能函数，进而利用矩方法得到多模式系统失效概率对不相关变量空间基本分布参数的灵敏度，最后利用相关变量空间与不相关变量空间的等价关系及复合函数求导法则，求得多模式系统失效概率对相关变量空间中变量均值的灵敏度。

On a per-lesion basis MRI revealed a sensitivity of 79.0/80.7%(observer1/2)for lesions larger than 3mm, if high conspicuity ratings were counted as positive, and 84.6%/84.6%, if medium and high conspicuity ratings were counted as positive. Sensitivity increased uniformly with lesion size and all lesions larger than 12mm were detected.

按照病灶数计算，如果仅高显著性病灶被计算为阳性时，SMS对直径3mm以上的病灶侦测敏感性为，79.0%/80.7%观察者1/2如果高和中等显著性病灶均被认为是阳性结果，SMS的敏感性为

Major content of this work includes five aspects as follows:(1). Oxygen sensitive materials had been prepared by carrier covalence method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen. Then through the detection of oxygen, the sensitivity and stability had been estimated, and it was studied that the properties of materials would be affected by the various factors.(2). Oxygen sensitive materials had been prepared by carrier covalence-cross linking method, and the preparation mechanism of the materials had been investigated by FI-IR, SEM, and the detection experiment of oxygen. Then through the detection of oxygen and spectrophotometer, the sensitivity and stability had been estimated, and it was studied that the properties of materials would be affected by the various factors.(3). For the detection of gaseous oxygen, the fiber optical sensor on basis of oxygen sensitive materials had a respond time of 10s, detection limit of 5ppmand detection precision of 0.5%. The sensor had good repeatability and stability, a less delay and at least 1 year life-span.

本论文主要包括以下五个方面的内容：(1)载体共价法制备氧敏感材料：通过红外光谱、扫描电镜图谱和氧测试实验探讨该氧敏感材料的制备机理，通过氧测试实验评价该氧敏感材料的氧敏感性和稳定性，同时研究了各种因素对该氧敏感材料性能的影响(2)载体共价—交联法制备氧敏感材料：通过红外光谱、扫描电镜图谱和氧测试实验探讨该氧敏感材料的制备机理，通过氧测试实验和分光光度计评价该氧敏感材料的氧敏感性和稳定性，同时研究了各种因素对该氧敏感材料性能的影响(3)氧敏感材料在光纤气态氧传感器中的应用：该传感器的响应时间为10s，检测下限为5ppm，检测精度为0.5％，具有较好的重复性和稳定性，迟滞较小，使用寿命至少为1年，适合各种环境下气态氧浓度的检测。

Results show that both the extreme sensitivity and sensitivity under the current climate are higher in the edge than in the central area of the plateau.

根据青藏高原气象台站观测积雪日数和均一化气温数据，对高原1951-2004年积雪日数对气温的敏感度进行了量化分析。

If the sensitivity is lower than the typical value, then the sensitivity of the error will be decreasing function of pressure.

如果灵敏度低于典型值，那么灵敏度误差将是压力的递减函数。

In doing so, we have gotten these objects:(1)built the relationship between natural vegetation pattern of china and the climate,based both on Kira-index and dry/wet index;(2)built the phenology model describing main natural vegetation types of china,based on degree-day;(3)built the drought sensitivity function for main vegetaion types of china; and (4)integrated the drought sensitivity function with the PDSI.

在执行过程中我们基本上按照项目计划书的原初设计完成了如下的工作：①采用Kira的生物热量指数与生物干湿指数相结合的思想，建立了中国自然植被的空间分布与气候因素之间的数量关系；②利用有效积温与生育期之间的关系，建立了自然植被主要类型的物候模型；③根据文献中的实测资料建立了主要农作物类型、自然植被主要类型的缺水敏感性指数；④将此缺水敏感性函数代入Palmer干旱强度指数的计算模型之中。新的干旱强度指数计算步长为周(7天)。

Based on these, the polarization sensitivity model and software of space remote sensor are established, by using the method of polarization ray tracing. Applying the model and software, the linear polarization sensitivity of the Moderate Resolution Imaging Spectroradiometer and the dichroic system are calculated and analyzed.

在这个基础上，利用偏振光线追迹的方法，作者建立了航天遥感器的偏振灵敏度模型及相应的软件；并利用遥感器的偏振灵敏度模型及软件对中分辨率成像光谱仪总系统以及分色镜系统的线偏振灵敏度进行了计算和分析。

Furthermore, the results of the antibiotics sensitivity test of 38 isolates to 24 kinds antibiotics show that all isolates have presented antibiotic resistance disparately as well as multi-resistance. All isolates are sensitive to Cephalosporins antibiotics and Aminoglycosides antibiotics such as Amikacin, Cefazolin, Cefradine, Cefoperazone, and Ceftriaxone. Thirty-eight isolates are extremely resistant to Penicillins antibiotics, Lincomycins antibiotics, Tetracyclines antibiotics and Macrolides antibiotics such as Midecamycine, Lincomycin, Carbenicillin, Tetracycline, Amoxicillin and so on. Antibiotics sensitivity test provides guidance for antibiotic application and scientific foundation from poultry farms.

按世界卫生组织推荐的Kirby-Bauer菌液涂布法对38株大肠杆菌进行24种抗生素的药物敏感性试验，结果表明：38株大肠杆菌均有不同程度的耐药，而且均表现多重耐药；较为敏感的抗生素是头孢菌素类和氨基糖苷类抗生素，其中以阿米卡星、头孢唑啉、头孢拉定、头孢哌酮和头孢三嗪最为敏感；对青霉素类抗生素、林可胺类抗生素、四环素类抗生素和大环内酯类抗生素耐药严重，其中以麦迪霉素、林可霉素、氨苄青霉素、四环素和阿莫西林耐药性最为严重；药物敏感试验为保定、秦皇岛和北京三个地区养鸡业提供科学的用药指南，为药物防治提供科学依据。

Contrast sensitivity function provides a more sensitive and more full-scale method than general eidoptometry. Although vision is normal, a fall of contrast sensitivity function in the early date after laser in situ keratomileusis would affect visual quality. It can be improved by scrutiny, rational medication and examination before and after laser in situ keratomileusis.

CSF提供了一种比常规视力检查更敏感、更全面的视功能评价手段，尽管裸眼视力正常，但LASIK术后早期CSF的下降会影响患者的视觉效果，这种现象可通过严谨的术前检查筛选、合理的手术设计、细致的手术操作、术前术后规范的用药随诊得到部分的补偿。

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。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。