查询词典 leakage coefficient

The two methods are presented for non-stationary leakage signals based on original feature gradate. One is a combination of the peak-peak and grads, the other is mean energy method, with the methods eliminate influence of noise and the stress concentration identification is improved. Based on the relativity for wavelet coefficient square, the signal singularity detection theory of wavelet transform was employed to determine metal magnetic memory. Experiment shows that the method is valid for leakage signal.

针对含有噪声非平稳性的漏磁信号，在原有信号特征量梯度的基础上，给出了新的时域空间梯度和峰-峰值组合特征量，以及能量峰值处理方法，有效消除了随机噪声对磁记忆信号的影响，提高了应力集中区的识别率；从磁记忆信号的奇异性检测角度出发，通过多尺度小波系数的平方相关一致性来确定真正的应力集中区；实验验证了所提方法的有效性。

A prediction model has been proposed to deal with threshold voltage shift as a function of 1MeV neutron flux and gate oxide thickness, and to deal with room-temperature annealing of threshold voltage shift induced-by 〓Coγ as a function of electric field and gate oxide thickness. The commonness and individuality of MOS device degradation between hot-carrier effect and ionizing radiation were investigated. The dependence of substrate current, gate current and threshold voltage shift due to hot-carrier on gate oxide thickness were simulated with MEDICI-2D simulator. The photocurrents of PN junction and bipolar transistor were studied. Their transient responses on varied bias voltages, pulse durations and absorbed doses were simulated. The influences of NPN base width on base and collector photocurrents were investigated. We also studied 1MeV neutron displacement damage in PN junction, and calculated reverse current leakage under the neutron flux of 2. 67×10〓 per square centimeter. 3 The study of nondestructive screening method for MOS radiation tolerance A theoretical and experimental study of nondestructive screening methods for radiation tolerance of nMOS and pMOS were firstly fulfilled. We determined the informative parameters pertinent to the method and proposed how to deal with experimental data and verify obtained results statistically, as well as make the required steps for nondestructive screening. Based on the experimental data of 180 samples of discrete pMOS devices, the relation between sample quantity and correlation coefficient, screening equation, and other significant results were obtained from the threshold voltage shifts of pre-and post-irradiation samples.

二、分立器件电离和位移辐射损伤响应研究在国内首次开展了电离辐射引起的氧化层阈值电压漂移和退火理论研究，编程计算了1MeV中子引起的MOS器件阈值电压漂移与中子通量及栅氧厚度的关系，计算了〓Coγ光子引起的阈值电压漂移及退火的时效曲线与纵向电场和栅氧厚度的关系等，对评估MOS型集成电路电离损伤和加固方法研究，以及论文中开展的MOSFETs无损筛选方法研究奠定了基础；分析了MOS器件热载流子损伤效应与辐射电离损伤效应之间的异同性，利用二维模拟软件MEDICI-2D模拟了衬底电流和栅电流，在不同栅氧厚度下随栅压的变化曲线，计算了热载流子效应造成的阈值电压漂移，研究结果对当前存在的以热载流子效应研究取代电离辐射损伤实验研究的设想，具有重要的参考价值；开展了PN结和双极晶体管电离光电流研究，计算了不同偏压、不同辐射脉宽和不同吸收剂量下PN结光电流的瞬时响应，计算了不同辐射脉宽下NPN晶体管基极电流和收集极电流的瞬时响应，以及基区宽度对NPN晶体管光电流的影响，研究结果对双极器件抗电离辐射损伤响应及加固方法研究具有重要意义；在国内首次开展了器件位移损伤的理论研究，分析了辐射产生的缺陷对电性能的影响，计算了注量为2.67×10〓cm〓的1MeV中子产生的缺陷对PN结反向电流的影响。

However, to be useful, they must be characterized for capacitance value, voltage rating, temperature coefficient, and leakage resistance.

然而，要使用电容器就必须明白其特性：包括电容值、额定电压值、温度系数以及泄漏电阻等。

A basic relational model for tip leakage mixing loss of unshrouded blades for compressible flow was derived from theoretical analysis of Denton. Relationship. It reflected the influential factors such as blade surface static pressure, chordwise distribution of tip clearance, discharge coefficient and total pressure loss coefficient in the tip region.

借鉴Denton不可压叶尖泄漏损失的理论分析，推导出可压缩流动中叶尖泄漏掺混损失基本关系式，其集中反映了尖区叶表压强、叶尖间隙、泄漏流流量系数及总损失系数影响。

A basic relational model for tip leakage mixing loss of unshrouded blades for compressible flow was derived from theoretical analysis of Denton. Relationship. It reflected the influential factors such as blade surface static pressure, chordwise distribution of tip clearance, discharge coefficient and total pressure loss coefficient in the tip region.

借鉴Denton不可压叶尖泄漏损失的理论分析，推导出可压缩流动中叶尖泄漏掺混损失基本关系式，其集，中反映了尖区叶表压强、叶尖间隙、泄漏流流量系数及总损失系数影响。

An analysis is also made of the moving regular of particles, the leakage passage formation feature, and the particles displacement field and so on. The internal stability of soils is studied from the perspective of gradation. Results show that the stability of soils relates closely to the shape of gradation curves and coefficient of ununiformity.

研究得到管涌发展过程中颗粒的移动规律，渗漏通道的形成特点，流速、颗粒位移场等随水力梯度的变化特点，并从级配角度分析土样的稳定性，得到土体的稳定性与级配曲线形状及不均匀系数等因素有关的结论。

The film possesses the features of high thermodynamic stability, higher dielectric coefficient and low leakage current.

该薄膜具有高的热力学稳定性，并有较高介电系数和低漏电流。

Therefore,in this paper,a case study of Xulou iron ore in Huaibei City was taken to evaluate the effects of mine drainage on the urban water supply in safety.Besides,uncertainty of the coefficient of leakage was also analyzed in quantity.

水不仅是一种资源，同时也是环境的重要组成部分[1-2]，并关系到经济、社会的可持续发展，但就城市供水而言，水安全主要是指供水安全，是在保证供水水质安全基础上的水量安全。

Second, by making use of BP algorithm model's function of pattern classification and recognition, the paper forecasts the possibility of the leakage accident in the pipeline network, and establishes a nonlinearity relation model between the variety factors that affect the leakage accident and the water leakage dangerous coefficient.

其次，在平差计算的基础上，利用BP算法模型的模式分类和辨别功能，对管网发生漏损事故的可能性进行模拟预测，建立了影响管网中管段发生漏损的多种因素和管段危险系数之间的非线性关系模型。

The relative leakage flow coefficient decreases with the increase of the rotational speed, and the leakage flow rate of the labyrinth seal at the high rotational speed of more than 6 000r/min decreases by 5.1%.

采用标准k-ε紊流模型和三维RANS方程求解方法，数值研究了密封间隙、压比、转速对典型迷宫密封泄漏特性的影响规律。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。