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By moving electron beam, we guide the deposition of a-C into the center of electron beam, so as to get the desired nanostrucures, such as nanowire, nanosopts, etc.

通过移动电子束，引导无定型碳不断地趋向束斑中心而沉积，从而生长出我们想要的纳米线、点等结构。

There are three different nucleophilic reagent respectively reaction with m-dinitrobenzene ramification at distint alkaline term:With the nitrobenzene 、 m-nirtobenzenesulfone sodium salt 、 2.4-dinitro chlorobenzene 、 m-dinitrobenzene for bottom thing, benzyl cyanide、 benzyl chloride、 benzyl chloropyridine、is a nucleophilic reagent reaction for under the different term proceeds a series reaction. At the same time ,discuss about the impact factor to nucleophilicity such as the number of attract electron group、 ability of attract electron and the nucleophilic substitution reaction part.

设计了三类不同的亲核试剂分别与活化芳环在不同的碱性条件下发生反应：以苄基氰、苄基氯化吡啶为亲核试剂，以硝基苯、间二硝基苯、间硝基苯磺酸钠、2，4-二硝基苄基氯为底物进行亲核取代反应；并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。

The phase contents and microstructure of the plasma-sprayed coatings were investigated by X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy. The surface roughness of the grit-blasted Ti alloy and the ZrO2 bond coat was measured by a surface recorder.

并藉由以上两个涂层系统，探讨HA 涂层本身层间内聚强度之提升及引入ZrO2介层后，对涂层与钛合金间键结强度之影响，并比较两强化机制间之差异，进而推论HA 涂层的主要结构弱点。

The electron transfer rate of carbon nanotube field emission hopping electron cathode has been studied with experimental method.

对应用碳纳米管场发射的跳跃电子阴极的三极管结构的电子通过率的研究，提出了的栅网上蒸镀高二次电子发射系数的介质膜的方法，可以有效地解决栅网的截获问题，提高电子通过率。

Originally, the problem has studied the automation cart ladder electron label selects some theory , method technology of system realization mainly , has included: The RFID technology , data base technology , bar code technology and logistics centre hardware deploy , the preliminary the RFID technology having designed that the same stuff has combined and bar code technology automation cart ladder electron label select system.

本课题主要研究了自动货架电子标签拣选系统实现的一些理论、方法技术，包括：RFID技术、数据库技术、条码技术以及物流中心硬件配置，初步设计了一套结合了RFID技术和条码技术的自动货架电子标签拣选系统。

Originally, the problem has studied the automation cart ladder electron label selects some theory , method technology of system realization mainly , has included: The RFID technology , data base technology , bar code technology and logistics centre hardware deploy , the preliminary the RFID technology having designed that the same stuff has combined and bar code technology automation cart ladder electron label select system.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要本课题主要研究了自动货架电子标签拣选系统实现的一些理论、方法技术，包括：RFID技术、数据库技术、条码技术以及物流中心硬件配置，初步设计了一套结合了RFID技术和条码技术的自动货架电子标签拣选系统。

In this paper,the basic features of quartz and the theoretic basis for quartz to be taken as a tracer for material source are summarized,and the material source tracing methods to use scanning electron microscope,mass spectrometer,electron spin resonance and cathode luminescence and the feasibility of these methods are introduced in detail.

综述了石英的性质和它作为有效指示剂来示踪物源的理论基础，进而详细介绍了使用扫描电镜、质谱、电子自旋共振和阴极发光等仪器对石英矿物的表面微结构、氧同位素比值、形成年龄和阴极发光颜色等特征进行研究来追踪物源的方法以及这些方法的可行性。

The material properties that have the greatest impact on the high-speed performance of HEMTS are the high sheet charge density in the two-dimensional electron gas (2DEG) and the superior electron velocity.

在这篇报告中，我们将要报告高电子迁移率电晶体发展历程与结构特性，应用在小讯号等效电路模型的建立上。

Behavior of welding arc plasma,characteristic of welding voltage,local changes of electron temperature and electron density were investigated respectively with high speed camera,inductance gauge of current and voltage,spectrometer in low power YAG laser-gas metal arc welding hybrid welding process comparing with simple GMAW welding case.

采用高速摄像机、电流电压采集仪及光谱分析仪分别研究低功率YAG激光-熔化极气体弧焊复合焊接过程中的电弧形态、电压特点及局部电子温度、密度变化。

Basing on the mechanism of the kinetic electron emission, we analyze the factors which relate to the kinetic emission yield, and finally get the relation between kinetic electron emission and impacting velocity in theory.

基于动能电子发射的机理，我们分析了影响动能电子产额的因素，理论上得出动能电子产额与入射速度增长呈线性增加的关系，取得了实验上和理论上一致的结果。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。