In order to attain a low quiescent dissipation, the input stage of the op-amp is biased in weak inversion, and a Class-AB common-source output stage is used to get the rail-to-rail output range.
为使放大器有较小的静态功耗，运算放大器的输入级被偏置在弱反型区；输出级采用甲乙类共源输出级，以达到输出电压的全摆幅。
The theoretical studies of the upper state population inversion ratio for erbiumdoped tellurite-based fiber amplifier are presented, and its distribution curves with the activated fiber length, each channel signal input power, bi-directional pumping power and erbium-doped concentration, respectively, are also obtained.
对宽带碲基掺铒光纤放大器上能级粒子数反转比进行了理论研究，得到了碲基掺铒光纤放大器上能级粒子数反转比随着光纤激活长度、信号输入功率、泵浦功率和纤芯掺杂浓度的演变关系，分析了上能级粒子数反转比分布与EDTFA信号增益间的关系。
The imagery processing tool bag function, may divide into following several kinds according to the function: Image display; Image document input-output; Geometry operation; Likely value statistics; Image analysis and enhancement; Image filter; Linear two-dimensional filter design; Picture inversion; Domain and block operation; Two value image operation; Color mapping and color space transformation; Image type and type transformation; Tool bag parameter gain and establishment and so on.
图像处理工具包的函数，按功能可以分为以下几类：图像显示；图像文件输入与输出；几何操作；像数值统计；图像分析与增强；图像滤波；线性二维滤波器设计；图像变换；领域和块操作；二值图像操作；颜色映射和颜色空间转换；图像类型和类型转换；工具包参数获取和设置等。
This paper presents the fast Fourier transform algorithm (FFT) in the digital frequency analysis and the inversion of earthquake wave. Taken the case of project of dynamical reciprocity between dam and foundation, two methods of earthquake wave input were analyzed and compared.
利用快速傅立叶变换（即FFT算法）进行了地震波的数字频谱分析和地震波的反演，结合坝与地基动力相互作用的工程实例，对地震波的2种输入方法进行了动力分析比较。
The population inversion and the trigger input must exceed certain thresholds to operate a two-photon laser.
双光子激光器必须有高于阈值的集居数反转和起动的触发脉冲。
The inversion problem of input signal is analyzed and the mathematical optimization model and calculation method for inverting the input signal are given. The simulation result under condition that noise exists shows this method to be feasible and practical.
对输入信号的反演问题进行了分析，并给出反演输入信号的数学优化模型和计算方法，在存在噪声的情况下仿真结果表明，该方法是可行而且是实用的。
Moreover, Hyperion data provide a high-dimensional input sample for the establishment of soil salinity model, which greatly improves the accuracy of inversion.
土壤含盐量的反演模型的研究还有待于进一步深入。
As follows:(1) Process the inversion pertinent data of land surface temperature, then determine inversion algorithm of research area and atmospheric transmission ratio and mean temperature by using vapor content of weather station and near ground temperature; (2) Carry on atmospheric correction of research area images, acquire LSE through the method of NDVI, input the estimate atmospheric transmission, mean temperature and surface ratio radiance to the decided inversion algorithm to inverse ground temperature and analyze the results; (3) Estimate the transmittance, the atmospheric mean temperature and LSE and carries on definite algorithm and the analysis result, analyzes the background condition, the origin and its the distribution characteristic and the rule which the Shanxi Province underground hot water forms, the union meteorology, the geological data, the establishment sentence translates the symbol, to the daytime, at night two scenery data surface temperature anomaly area carries on the synthesis contrast analysis, the definite geothermy unusual area distribution, finally did with the research area convention geothermy investigation result distribution compares, has obtained a better effect.
具体步骤如下：(1)整理地表温度反演有关资料，确定研究区的反演算法，利用气象站的水汽含量和近地面气温来确定大气透射率和大气平均作用温度；(2)对研究区影像进行大气校正，通过归一化植被指数的方法求解地表比辐射率，将估计的大气透射率、大气平均作用温度和地表比辐射率值代入确定的反演算法，进行地表温度反演并分析反演结果；(3)分析山西省地下热水形成的背景条件、成因及其分布特征与规律，结合气象、地质资料，建立判译标志，对白天、夜间两景数据的地表温度异常区进行综合对比分析，确定地热异常区的分布，最后与研究区常规地热调查结果的分布做比较，取得了较好的效果。
The effects of random errors of input data, position uncertainty and number of points of input data on the inversion accuracy have been investigated. The two methods are compared in all aspects.
研究了输入数据的随机误差、诊断设备的系统误差以及采样点的数目等对Ab-el逆变换精度的影响，同时对这两种方法进行了比较。
The BP neural network is introduced in direct inversion with measured data of flow as input value and river roughness as output value.
基于数据挖掘的思想，本文提出一种新的河网糙率直接反演方法。
Different target echo characteristics are input to the same algorithm for inversion of the target dielectric constant, and then a higher inversion accuracy of characteristics will be selected.
然后用不同的目标回波特征输入到相同的算法中反演目标介电常数，选择出反演精度高的目标回波特征。
The inversion input information is the reflection and transmission data corresponding to a point source. By applying the characteristic theory for hyperbolic equations, we establish an integral system from which ρ(z) and c (z) can be recovered simultaneously.
通过波动方程的特征理论，利用点源产生的反射数据和透射数据，建立了同时反演密度ρ（z）和波速c（z）的封闭积分系统。
By means of the idea of virtual inversion, the subgrade reactions under the ballast blocks and its power spectrum from the input excitation of railway spectrum are taken as the object functions; the parameters are inversed by means of the Generic Algorithm.
借助虚拟反演的思路，以计算得到的轨道竖向不平顺谱的功率谱密度函数激励产生的道床块下地基反力时程及其功率谱为目标，采用遗传算法，反演输入的轨道谱的参数。
When it is under the condition that no input inversion is allowed and no competition and hazard are considered, the minimization Nor logic Network can not be derived from the simplest Nor-Nor formula.
在不允许输入有反变量和不考虑竞争冒险的情况下，一般不能从最简或非&或非表达式来找最小化或非逻辑网络。
And then based on the inversion formula of the seismic input to linear single-degree-of-freedom system, the method further adjusts the initial time history to improve its fitting precision to the target spectrum by superimposing narrowband time histories in the time domain.
然后基于线性单自由度体系的地震输入反演公式，利用在时域内叠加窄带时程的方法继续调整该初始时程以进一步提高其对目标反应谱的拟合精度。
The inversion is a method for the system characteristics and its parameters description, which begins from the system response to system input.
反演是一种从系统响应到系统输入来描述系统特征及其相关参数的方法。
On the Design about Un-inversion Variable Input of Combinational Logic Cricuit
组合逻辑电路的无反变量输入设计
A operational amplifier in weak inversion with rail-to-rail input stage is presented in the paper, which is based on 0.34 - CMOS technology.
基于0.34CMOS工艺，设计了一个Rail-to-Rail输入，静态电流小于3，工作在亚阈区的极低功耗运算放大器。
Input data for the inversion can then be picked in the resulting simulated zero-offset section of significantly improved S/N ratio.
反演所应用的输入信息可以从信噪比显著提高的CRS参数剖面中拾取得到。
Input data for the inversion can then be picked in the resulting simulated zero-offset section of significantly improved S / N ratio.
反演所应用的输入信息可以从信噪比显著提高的CRS参数剖面中拾取得到。