查询词典 exponential

The traditional OFDM technology adopting complex exponential sub carrier wave base on Fourier transform, which is makeup by many orthogonal cosine function group.

这是因为基于小波的信号分析是一种时频分析，因此，采用合适的正交小波基取代传统的余弦函数基，就可以同时在频域和时域上对信号进行综合考虑。

The results showed that behavior of the smog and TSP are in accordance to the formula of dynamics, changes of cresol mixed isomers' density conform with exponential function. With air disinfecting in indoor with smog, the killing percentage of Staphylococcus auras are up to 99.92% during 30 min, and that of natural bacteria is up to 99.66% during 120min, and the sm...

结果表明，烟雾及其有效成份在空气中按一定的规律沉降；并且在 30min作用时间内能够有效地杀灭空气中 99.92 %的金黄色葡萄球菌；在 12 0min内空气自然菌的平均杀灭率可达 99.66%，烟雾对室内空气环境具有一定的净化作用。

Based on theory of simple harmonic oscillation in physics, this paper presents a novel model for production decline prediction given by deformation of critical damping oscillation equation which is predigested to Arps exponential decline form.

基于物理学中的简谐振动原理，提出了把阻尼振动方程中的临界阻尼振动方程变形得到一种新的产量递减模型，可简化为Arps指数递减形式，经实例计算，可以用来预测油田产量，以此指导油田开发和管理。

This is because of the exponential increase in value tiberium crystals go through.

这是因为泰矿晶体价值是遵循指数性增长的。

The two-parameter negative exponential form could bump regression analysis degree of fitting up Least square curvilinear regression method was considered as the most conformable regression-type analysis.

回归分析的方法使用最小二乘法曲线回归方法。

In experimental studies an experimental system has been constructed, which is suitable to investigate the Q-V characteristics under damped oscillation and double exponential impulses.

在试验方面，首先建立了一套适合于衰减振荡波和双指数雷电波等快速冲击电晕伏库特性研究的模拟试验系统。

The corona Q-V characteristics can be obtained automatically by the modle for different waveshapes such as damped oscillation and double exponential impulses.

最后，从试验与计算的结合上进一步探讨在冲击电晕过程中的反极性电晕机制及其对衰减振荡波和双指数雷电波电晕伏库特性的影响。

During the course of the experiments, by changing the waveshapes of damped oscillation and double exponential impulses in a wide range the relevant corona Q-V characteristics have been measured so as to examine the influence of waveshapes on them systematically.

其次，通过广泛地改变衰减振荡波和双指数雷电波的波形参数来测取相应的电晕伏库特性，系统研究波形参数变化对电晕伏库特性的影响，并就衰减振荡波和双指数雷电波这两种不同波形下电晕伏库特性之间的区别与联系进行了比较。

As response signal of damped free vibration could be considered as product of the harmonic wave and the unilateral exponential function and the rectangle window, the peak frequency and phase are frequency and phase of the harmonic wave signal is proved in theory in this paper.

针对自由衰减振动信号的连续谱，将其看成无限长谐波信号与单边指数函数及矩形窗的乘积，在理论上证明峰值点的频率和相位就是信号的实际频率和相位。

A necessary and sufficient exponential stability theorem with respect to a constant decay degree for general nonlinear dynamical systems is presented.

首先给出了一般非线性动态系统的关于常衰减度的指数稳定性充分必要定理，接着探讨了新型指数稳定性定理在线性系统稳定性分析中的应用。

And he is one of the few scouts who are occasionally sent out to have dealings with other peoples.

而他也是少数的几位偶尔会被派出去和外界人打交道的巡逻人员之一。

The sons of Hebron: Korah, Tappuah, Rekem and Shema.

希伯仑的儿子是可拉，他普亚，利肯，示玛。