查询词典 variation of constants

In some materials with periodic variation of dielectric constants and light within a certain frequency range shows exponential decay due to destructive interference and cannot propagate. This phenomenon is called photonic bandgap and this kind of structures is called photonic crystals.

介电系数周期性排列的材料，部分波段会因破坏性干涉呈指数衰减，导致无法在此结构上传播，此现象称为光子能隙，此类具有介电系数周期性排列的结构则称为光子晶体。

This paper is concerned with the system uncertainty that includes variation of material constants in a process.

模糊控制器的比例因子能够在线调整来实现自适应的功能。

The effect of variation particle growth rate constants and the gas temperature on the density of the dust particles was investigated. The different forces acting on the nanoparticles and it can also be seen that an increase in nanoparticle size results in a higher negative charge on the nonoparticle's surface was investigated. The distribution of positive, neutral, and negative particle charge were computed.

本论文系统介绍了近年来迅速发展的流体模型，给出气体压力对粒子生长的影响，气体温度对尘粒密度的影响，分析了纳米粒子受力情况和粒子大小与充电量的关系，并且得出粒子浓度和电子温度随时间的变化，以及正离子负离子和电子的浓度在等离子体中的分布。

From the decay rate constants variation of 4NQO excited triplet state (590 nm) of different concentration, we got the intrinsic lifetime and self-quenching rate constant of 4NQO excited triplet state.

同时，首次报道了4NQO激发三重态动力学行为的pH效应，结果表明，随着pH值的升高，4NQO的自猝灭速率常数一直有规律地增大。

A series of slow drain current recovery transients at different gate biases after a short-term stress are observed in an AlGaN/GaN HEMT. As the variation of the time constants of the transients is small, the working trap is determined to be electronic.

观察了AlGaN/GaN HEMT器件在短期应力后不同栅偏置下的一组漏极电流瞬态，发现瞬态的时间常数随栅偏压变化很小，据此判断这组瞬态由电子陷阱的释放引起。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。