掺杂

Functions of different doping systems are compared, and their doping mechanism and properties are presented.

对不同掺杂体系所起的作用作了比较，并探讨了各自的掺杂机制和特点。

Positron annihilation lifetime and coincidence Doppler broadening measurements have also been performed on alloying TiAl. The experiments results indicate that the effect on the electron structure of TiAl alloy is different when different amounts of Nb are doped.

2利用符合多普勒展宽与正电子湮没寿命测量方法，分析讨论了不同含量Nb对Ti–49Al合金的掺杂效应，研究结果表明：不同含量Nb掺杂对TiAl合金的电子结构影响是不同的，从而导致了对合金性能的不同影响。

In doped ZnO nanowires showed a two step field emission mode and enhanced field emission property.

通过In 掺杂明显提高 ZnO 纳米线的场发射性能，并改变了场发射特性，即In 掺杂 ZnO 纳米线除价带电子发射外，导带电子在低电场时参与发射的特征明显。

At first,the as-preparedsample was annealed in an oxidizing atmosphere,the ferromagnetism of the filmdisappeared.

2磁性研究表明：对于不同Tb掺杂量的样品，随Tb掺杂量的增加，样品的每Tb磁矩先增加。

By means of the deconvolution of the MWD curves by multiple Flory functions, we found that the reason was that introducing MgF_2 into the MgCl_2 support did not change the number of active center types existed in the catalysts.

掺杂MgF_2对聚乙烯的分子量分布的影响较小，对聚乙烯的GPC曲线进行Flory最可几分布函数的分峰拟合结果表明，掺杂MgF_2对催化剂活性中心种类数没有影响。

The deconvolution of the MWD curves by multiple Flory functions showed that the broadening of MWD of PE is due to increase of types of active centers by introducing AlCl_3 into the support.

掺杂AlCl_3对聚乙烯分子量分布的影响很大，随催化剂中AlCl_3掺杂量的提高，所得聚乙烯的分子量分布显著增宽。

In this paper, a new product of Ce/ TiO2 compound antibacterial agent has been made, comparing with naked nano－TiO2, it has better antimicrobial activity against E.coli ,S.aureus and scorch gemmule bacillus in the solar light, increasing the quantity of Ce4+, exhibiting stronger antibacterial property.

制备出稀土铈掺杂锐钛型纳米TiO2复合抗菌功能材料，该抗菌材料与不掺杂的纳米TiO2相比，在可见光下对大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌的混合菌具有较好的抑菌效果，随着Ce4+的摩尔浓度增加，制备的试样的抗菌能力越强。

Based on the establishment of a model of silicon dioxide structure, the effect of germania concentration across the fiber core on Raman gain spectrum was analyzed by the method of Gaussian decomposition.

分解图谱表明掺杂物破坏了二氧化硅的分子结构，并在拉曼增益范围内产生了新的峰值，从理论上证明了光纤掺杂物对拉曼增益系数和增益谱的影响。

XRD analysis shows that the doped graphite has large crystalline and high graphitization degree.

XRD分析结果表明掺杂石墨都具有大的晶格尺寸，高的石墨化程度，这与掺杂组元的催化石墨化作用有关。

Hexagonal nano-silicon carbide thin films doped and undoped with phosphorus which possess a characteristic of the ultraviolet photoluminescence have been deposited by helicon wave plasma enhanced chemical vapour deposition technique under the high hydrogen condition in this work. The optical and electric properties of the doped nano-SiC films together with the electric and photovoltage properties of the n-p nc-SiC/Si heterojunction is studied and analyzed.

本工作利用螺旋波等离子体化学气相沉积技术在高氢气条件下制备了具有紫外发光的六角晶型纳米碳化硅，对这种材料进行了不同比例的磷掺杂，并对这种掺杂的纳米碳化硅的光学、电学特性以及nc-SiC/Si异质结的电学特性和光电压特性进行了研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。