掺杂

This showed that the electron density of a quinoid ring increased. The peaks of the quaternary carbon atoms of the benzene rings, which were adjacent to the quinoid ring, also shifted to higher field. But the peaks of other C atoms shifted to lower field.

NMR结果表明苯胺低聚体掺杂后主链上的电荷重新分布，环上的H原子上的电子被C原子吸引，电荷密度降低，在〓 NMR中谱峰向低场移动。C原子的谱峰也相应发生变化，醌环上电荷密度增加，全部C原子的峰向高场移动，与醌环相邻苯环受其影响季碳峰移向高场，非季碳峰移向低场。

Meanwhile, inactivation and reactivation of photocatalyst are also discussed in the paper.

此外，以模拟太阳光下光催化降解苯酚为模型反应，考察了焙烧温度和铂离子掺杂浓度对光催化活性的影响，同时探讨了光催化剂的失活与再生。

Inactivation and reactivation of photocatalyst are also discussed in the paper.

所制备的三个系列改性TiO〓纳米粒子的光谱响应范围均拓展到了可见光区，且随着金属离子掺杂浓度的增加，在可见光区的吸收强度增强。

It can also be found that the increase of Sc2O3 separation possibly brought adverse effect to the reducibility of LSMS samples.

但是随着Sc含量和焙烧温度提高，Sc掺杂对样品的还原活性改善不明显，这是由于Sc2O3偏析量增加引起的。

Nanometer TiO2 thin films were prepared by means of a sol-gel process with [Ti4] as the precursor and characterized by XRD, TG-DTA, TEM and PL spectra. XRD results show that the referentially oriented(101) anatase films were formed.

以钛酸正丁酯[Ti4]为前驱体，采用溶胶-凝胶法制备Tb(上标 3+)和Gd(上标 3+)共掺杂的纳米TiO2发光薄膜，并探讨了Gd(上标 3+)对Tb(上标 3+)的增敏作用机理。

Studies on basic working principles and designs of fiber lasersThe basic working principles as well as the major characteristics of laser and fiber lasers are firstly reviewed,including the interaction between light and matter, the laser oscillation conditions and the spectrum distribution,the gain characteristic and spatial hole burning effect,the influence of external environment on the stability of laser output and the actual limits of fiber laser bandwidth;The designs of bidirectional single-mode Er-doped fiber ring laser and multi-wavelength laser is then discussed,respectively;The characteristics of dynamic grating reflection spectrum of the fiber saturable absorber is systematically analyzed.?

在激光型光纤传感器的设计、实验现象的理论解释等方面做了如下的研究工作：光纤激光器的基本原理与设计方案概述了激光和光纤激光器的基本原理，包括光与物质的相互作用，激光振荡的条件及频谱分布等激光产生的基本原理：掺铒光纤的增益性质，空间烧孔效应和外界扰动对激光输出稳定性的影响，光纤激光器的实际极限带宽等光纤激光器的相关知识；分别讨论了双向单纵模环形腔激光器和多波长激光器的设计方案；系统地分析了掺杂光纤饱和吸收体中形成的动态光栅的反射谱特性。

And at times, this is joined by a reflexive suspicion of America, the world's sole military superpower.

有时候，这种矛盾又掺杂着对美国，这个世界上惟一的超级大国的一种反射性的不信任。

Moreover, the dopants with large molecule volume and high refractivity index will increase the Rayleigh scattering loss but improve the thermal stability of GI POF.

如果掺杂剂的分子体积大、分子折射率高，则GI POF预制棒的瑞利散射损耗大，但热稳定性能高。

By density-matrix renormalization group method, the 1/5-doping effect on the spin-1/2 Heisenberg antiferromagnetic chain is investigated.

利用密度矩阵重整化群方法研究1/5掺杂对自旋1/2海森堡反铁磁链的影响。

Its reason is various, both has initiation own chronic disease, and dopes with is going too far blindly including the romanticism modern repudiator.

其原因是多方面的，既有启蒙自身的痼疾，又掺杂着包括浪漫主义在内的现代批判者的盲目与过火。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。