增益

The model considers as many factors as possible, including nonuniform distribution of photon intensity and carrier density along active region, gain spectral dispersion, spontaneous emission spectrum and facet reflectivity, and is applicable under the condition that the pulse width of injecting signal is wider than 10 picoseconds. It provides a convenient and effective theoretical platform for SOA dynamic characteristic study.

该模型考虑光子密度和载流子浓度沿有源区的非均匀分布、增益谱色散性、自发辐射噪声谱和端面反射率，适用于脉冲宽度高于10ps的信号输入的情况，为后续研究SOA动态特性提供了方便而有效的理论验证平台。

The transit time and gain characteristics of electrons which travel in the micro-channel plate gated by picoseconds high voltage pulse were simulated. The curves of the transit time versus the voltage pulse width and the voltage amplitude are obtained when the waveforms of the voltage pulse are Gauss, triangle and trapezoid.

对皮秒高压脉冲驱动下微通道板中电子的渡越时间特性和增益特性进行了数值模拟，在电压脉冲波形分别为高斯形、三角形和梯形时，得到了电子渡越时间与电压脉冲宽度、幅度的关系曲线。

It consists of a traveling-wave semiconductor optical amplifier, a wavelength selecting element, an optical coupler and in-line optical isolators. All of the components in the setup are fiber pigtailed and commercially available. We have solved the wavelength-dependent rate equation applicable to the FRSLs.

针对这种结构的特点，首先，从理论上建立了FRSLs的物理模型，考虑到行波式半导体光放大器增益谱特性，引入Lorentz型波长修正项，得到适用于FRSLs的单模行波速率方程，继而通过求解方程，推出了光子流密度分布的解析表达式。

Due to hyperfine structure of Rubidium atoms, the four-wave mixing effect exists in thermal Rubidium atomic vapor, which related to the third-order nonlinear effect closely. The Raman gain of the Stokes and anti-Stokes photons is observed by sweeping the frequency of the probe beam.

由于铷原子的超精细能级结构，在铷原子蒸气中同时存在与三阶非线性效应相关的四波混频现象，通过扫描探测光的频率同时观察到具有斯托克斯和反斯托克斯光子的喇曼增益现象。

The danger is that this will strengthen the powers of the prosecutors but do nothing to reinforce their independence.

这一做法的风险在于，检察官的权利将进一步加强，但对其独立性来说毫无增益。

When this kind of converter is working at the prescribed temperature confine,it keeps being humdrum character,high precision of the conversion(linetype error ≤± 1 LSB、 differential coefficient error ≤±1 LSB), speediness(the time of establishing the putput voltage ≤3μ s), low power consume(power consume ≤ 600mW),good temperature capability(the temperature coefficient ≤30ppm), large-scale output range.

本D／A转换器在工作温度范围内保持严格的单调性、转换精度高(线性误差≤±1 LSB、微分误差≤±1 LSB)、转换速度快(电压输出建立时间≤3μs)、转换功耗低(功耗≤600mW)、温度性能好(增益温度系数≤30ppm)、输出电压幅度大(±10V)并且可以灵活应用于0～5V、0～10V、±2.5V、+5V、+10V多种输出范围。

A new kind of method for measuring the small signal gain coefficient of HF laser is developed.

发展了一种使用可调谐LD激光为探针直接测量HF激光器小信号增益的方法。

So the performance of the reconfigured system may recover the original one to a maximum extent.

这种方法的优点是重构系统的稳定性可得到保证，且计算输出反馈增益阵的算法相对简单。

Nevertheless, with the increasing of maximum number of retransmissions, the gain in spectral efficiency decreases, which suggest that enough spectral efficiency gain can be gotten by a desirable delay in practical systems.

但随着最大重传次数的增加频谱利用率的提高越来越小，这就使得实际系统能以较小的时延代价换取足够的频谱利用率增益。

Some video signals modulate the receiving signal in frequency domain,then the resulting signal is retransmitted.

这种干扰信号能获得一定的处理增益，因此能节省干扰功率。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。