查询词典 donor impurity

The study of acceptor Ga open-tube diffusion in SiO2/Si has been carried for several decades, whose pursuing was only to get the diffused surface of high uniformity and reproducibility and impurity distribution in Si which can improvethe electrical performance of the devices, but the various manifestation of Ga segregation effect at the SiO2-Si internal interface and the dynamic intendancy of the impurity concentration variability have not been reported.

关于受主杂质Ga在SiO_2／Si系统进行开管掺杂的研究已有几十年的历史，研究的内容与追求的目标主要集中在如何获得高均匀性、重复性的扩散表面和提高器件电学性能的硅体内杂质分布形式，而对Ga在SiO_2-Si内界面上分凝效应的各种表现，以及由此造成的近硅表面杂质浓度动态变化趋势尚未见报导。

Based on the 2-D distribution of channel impurity, the distribution of 2-D electric field and 2-D interaction potential, which is caused by the interaction between the ionized impurity in the depletion layer and radiation induced positive spatial charge, is analyzed by using image charge method. Resolving Poisson equation, the mobility expression of N-type and P-type non-uniform channel MOS and the mathematics expression of the threshold voltage model of DMOS are obtained.

基于沟道杂质的非均匀分布，借助镜像法导出非均匀沟道辐照正空间电荷和沟道中电离杂质的二维场及其作用，给出非均匀沟道DMOS器件辐照正空间电荷与沟道杂质的二维互作用势。

For single wall carbon nanotubes, we study the nonmagnetic and magnetic impurity effects on zigzag nanotubes by Green's function perturbation method and found that the impurity effects are different for semiconducting and metallic nanotubes. Arbitrary potential can induce a bound state in semiconducting nanotubes, and resonance state in metallic tubes.

在我们的工作以前，共振态对系统磁性的贡献往往被忽略，实验上观测到的掺非磁性杂质的高温超导的磁化率呈居里—外斯形式完全归结为杂质诱导出的局域磁矩，尽管可以解释磁化率，但与一些实验产生矛盾。

Amino to acetyl phenol, in have technology of two kinds of production domestic and internationally, acetic anhydride craft of the United States, acyl changes temperature to have 75 ℃ only, acyl changes mother liquor not apply mechanically, deputy reaction is little, of production thick tasting is kind of white almost, purificatory craft is very simple, activated carbon dosage only 2~3%, the Kun that its product does not have glow material almost in different third alcohol inferior the sealed impurity of amine impurity and minim, settleclear lightness it may not be a bad idea, the product quality that acetic anhydride craft produces is good, but close rate low, cost is high.

对乙酰氨基酚，在国内外有两种生产工艺，美国的醋酐工艺，酰化温度只有75℃，酰化母液不套用，副反应少，生产的粗品几乎是类白色，精制工艺就非常简单，活性炭用量仅2~3%，其产品在异丙醇中几乎无红光物质的醌亚胺杂质及微量的未知杂质，澄明度也好，醋酐工艺生产的产品质量好，但收率低、成本高。

1 Steel plant,and profound analysis was carried out for the capability of reducing impurity of blowing-argon,ladle reefing,middle-vessel,crystallizer,and the infection of variant deoxidation ability on the content,composition and shape of the impurity in carting blank,through gas-analysis,image-analysis and electron microscope scan.

为了解济钢一炼钢钢水纯净度的实际状况，选择两个典型钢种BC和AH32为分析对象，通过气体分析、图像分析和电子显微镜扫描分析分别对吹氩处理和LF炉精炼处理、中间包和结晶器去除夹杂物的能力及采用不同的脱氧工艺对铸坯夹杂物含量、组成及形态的影响进行了深入分析，找出了全氧和氮的变化规律、夹杂物粒度分布及主要组成，为研究如何降低夹杂物含量和改变夹杂物形态提供了技术基础。

The calculated results indicated central wavelength of impurity mode and whole forbidden band move towards shortwave when incidence angles increase. Remotion of impurity mode of P-wave consist with that of S-wave basically.

研究结果表明，杂质模的中心波长及整个光子禁带随入射角的增加逐渐向短波方向移动，P偏振光和S偏振光的杂质模的移动情况基本一致。

This kind of oil wastewater is a complex system in which comprise solid impurity, liquid impurity and resolvable salt.

这种含油污水是一种含有固体杂质、液体杂质和溶解盐类等较为复杂的多相体系。

Through test and analysis, it is believed that the main cause of failure of the short inlet pipe of main platen header is low smelting purity and high impurity content of steel, and original cracks formed by concentrated impurity along the pipe longitudinally during rolling, which leads to tear-off.

通过试验，分析部件失效原因为：钢材冶炼纯净度低致使夹杂物超标，在随后的轧制过程中形成沿管子纵向分布的密集夹杂物构成的原始裂纹，从而导致开裂。

In order to improve the impurity controland to increase the interaction of ions with neutralgasin FEB Edivertor,the dynamicgastargetdivertorisdesigned by meansofcom bination ofgaspuffing and impurity injection.

为了提高FEBE偏滤器的杂质控制和增加FEBE偏滤器处离子与中性气体的相互作用，用喷气和杂质注入的方法设计了动态气体靶偏滤器。

It can be used for determination of dicyanodiamide and impurity(1) and impurity(2) in Metformin hydrochloride and Glibenclamide Tablets.

结论本方法专属性强、操作简便、准确度高、重现性好。

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。