在二沉池模拟中，指数模型和双指数模型较为实用且应用较多。
The exponential model and double exponential model were the most practical and applied models for secondary clarifier simulation.
本文提出了一种对双指数荧光衰减进行拟合及分析的较简便的有效方法。
This paper presents a simple and effective method for fitting and analysis of the kinetic model of double exponential fluorescence decay.
这种耦合关系在其演化周期内呈现出双指数函数的变化规律，其耦合演化轨迹是一条双指数曲线；
This kind of coupling relation takes on a double-exponential function changing law, and the evolutive track of the interaction between urbanization and eco-environment is a double-exponential curve.
文中根据四种典型情况，给出了如何合理地选取和修正各个衰减参量的规则，以迅速获得双指数衰减的最佳拟合。
According to four typical cases, we give the rules for selection and modification of decay parameters to get the best fit.
首先利用非对称的LINEX损失函数对双指数分布族刻度参数进行了经验贝叶斯估计，并讨论了该估计的性质，给出了收敛速度。
First, we obtain the empirical Bayesian estimator of the scale parameter for the double exponential distribution based on LINEX loss function and the convergence rate of the estimate.
结果表明，应用子模型技术估算三维双材料结构的应力奇异性指数是有效的。
It is shown that FEM sub-modeling technique is valid for estimating the index of stress singularity for three-dimensional bi-material structure.
双精度数的指数的偏差是1023。
双参数指数分布是可靠性工程中重要的分布之一，对其研究有一定的理论意义和实用价值。
Two-parameter exponential distribution is an important distribution in reliability engineering. It is studied because it is useful in theory and in practice.
对于轴向阶梯载荷下圆柱壳的非轴对称动力屈曲，将临界应力和屈曲惯性指数作为双特征参数求解。
Critical stress and inertial exponent are treated as two characteristic parameters for the asymmetric dynamic buckling of cylindrical shells under axial step loading.
本文对双曲-抛物偏微分方程奇异摄动问题构造了一个指数型拟合差分格式。
In this paper we constructed an exponentially fitted difference scheme for singular perturbation problem of hyperbolic-parabolic partial differential equation.
对指数分布下的双截尾数据和分段数据，给出了其参数矩估计的一种新的方法。
A new method of moment parameter estimation parameter is given by double side censored data and interval data in the exponential distribution.
在次极量仰卧运动中测量最大心率、心率血压双乘积、最大运动耐量指数。
Maximal heart rate (MHR), double product of maximal heart rate and systolic blood pressure, and maximal endurance index (MEI) were measured during submaximal supine bicycle exercise.
文中分析了三种抑制噪声的方法，相关双采样法、双斜积分法、开关指数滤波法。
Signal processing schemes described in this paper are double correlated sampling, dual slope integration and switched exponential filtering.
目的探讨双时相~（18）F-FDG PET显像图像、标准摄取值（SUV）及储留指数（RI%）在恶性肿瘤诊断中的价值。
Objective To study the value of dual-phase ~(18)F -FDG PET imaging, standardized uptake value(SUV) and retention index(RI%) in the diagnosis of malignancy.
双精度数是以类似的方式编码的，但是它使用52位的尾数和11位的指数来获得更高的精度。
Doubles are encoded in much the same way except that they use a 52-bit mantissa and an 11-bit exponent for higher precision.
自同步振动机的稳定性指数W，当振动机为空间单质体和空间双质体时其表达式分别为式（21）及式（54）。
The stability factors W of a self-synchronous vibrating machine, in space motion, are given by formula(21)and (54) as working with single mass and dual mass respectively.
双端金属卤化物灯显色指数更高，适用于商场、舞台、橱窗、办公场所。
Double-ended Metal Halide Lamps are used for shopping mall, stage, show window and office because of high Ra.
目的探讨正常双胎妊娠期间胎儿大脑中动脉搏动指数的变化；
Objective (1)To study the change of fetal middle cerebral artery pulsatility index(PIMCA) in twin pregnancy;
作为应用，给出了双曲线、双曲正弦曲线与指数曲线的UAHB 样条精确表示。
As an application, hyperbolic curves, hyperbolic sine curves and exponentcurves are explicitly expressed by the 3-order and 4-order UAH B-splines.
作为应用，给出了双曲线、双曲正弦曲线与指数曲线的UAHB 样条精确表示。
As an application, hyperbolic curves, hyperbolic sine curves and exponentcurves are explicitly expressed by the 3-order and 4-order UAH B-splines.
应用推荐