Vertical and Smooth, etching of InP by Cl2／CH4／Ar Inductively Coupled Plasma at Room Temperature

We study the room-temperature dry, etching of InP by inductively coupled plasma (ICP) using C12/CH4/Ar mixtures. Etches were characterized in terms of anisotropy and surface roughness by scanning electron microscopy and atomic force microscopy, respectively. It is found that the flow ratio between C12 and Ctt4, ICP power, rf chuck power, and table temperature can greatly influence the, etching results. By adjusting, etching parameters,vertical sidewall and smooth surface can be obtained simultaneously, together with a moderate, etch rate and a good select ratio. The root-mean-square surface roughness is measured to be as low as 0.27nm. To the best of our knowledge, this is the best result for InP to date. The, etch rate is 855nm/min, and the selectivity ratio overSi02 is estimated to be higher than 15:1. The stoichiometry of the, etched surface has also been investigated by Auger electron spectroscopy. The, etched surface is found to manifest a slight P deficiency, and the ratio between P and In reaches the stoichiometric value within about 0.75nm depth into the surface.     

单一元件交流电路相位差的定性分析

电容、电感、电阻是三个基本电路元件．它们各自和正弦交流电源连接，分别构成纯电容、纯电感、纯电阻交流电路．它们都是理想的电路模型．纯电容电路中电压uc滞后电流icπ/2，纯电感电路中电压uL超前电流iLπ/2，     

一种标记物中的蛋白质测定

随着生物医学研究的迅速发展，在其相应的研究领域中也出现了许多新技术，蛋白质连接技术即是其一。本实验以自行合成时间分辨荧光免疫分析[TRFIA]双功能螯合剂4，7-二氯磺酰基苯基-1，10-菲绕啰啉-2，9-二羧酸（BCPDA）进行蛋白质连接技术研究，发现BCPDA在280nm处有比蛋白质更强的吸收，严重干扰了蛋白质测定。结合BCPDA标记牛血清白蛋白（BSA）实验，采用考马斯亮蓝染色建立了测定蛋白质方法。     

Preliminary High Heat Flux Tests of Small-Scale Be/Cu Mock-Ups

China, as one of the members of ITER （international thermonuclear experimental reactor） project, one of the most important construction tasks is the fabrication of the first wall panel and shield blankets, which is the key engineering technology of ITER construction and might be one of the crucial issues of the future reactor too. Since 2004, an associated research team including Southwestern Institute of Physics （ SWIP ）, Ninxia Non-ferrous Metal Co. Itd and Chinese Institute of Engineering Physics, as well as Nuclear Power Institute of China has been established. Up to now, several series of interlayer for hot isostatic press （ HIP ） connection of beryllium and CuCrZr alloy have been tested. They are titanium film or coating, Cu coating and Al or AISiMg alloy etc. The bonding strength （tensile or shear strength ） of HIPed Be/Cu joints is up to 100 MPa.     

基于LonWorks现场总线技术的氮气加热器控制系统研究

氮气加热器用于石化工业丙烯精制工程，给再生氮气加热．针对新疆独山子石化厂氮气加热器．利用LonWorks现场总线控制技术构成网络，采用前馈控制PID算法．通过周波调整法对电加热管的加热功率进行控制，在保证的规定时间内连续输出合乎温度要求的高温氮气．本控制网络的核心技术是神经元芯片(Neuron Chips)、智能网络节点和Lon Talk通信协议．本文介绍了LonWorks技术以及氮气加热控制系统总体方案与网络结构设计，节点模块设计与配置，控制电路设计，控制算法设计与软件编程．     

硅压阻式力敏传感器在测量物体密度实验中的应用

固体和液体的密度测量是物理实验的一个基本课题,具有丰富的物理思想和训练内容.传统的测量方法是用普通物理天平,采用流体静力称衡法和比重瓶法.     

多电子原子和离子的等电子系参数的研究 (Ⅰ)——k系数的引入与节点数的校正

从分析比较标准量子亏损理论与最弱受约束电子势模型理论中能量的不同表征方式出发,试引入可以反映原子(离子)体系中屏蔽效应的k校正系数。不同方次的平均值及其它计算结果表明,引入的k系数,不但使直接使用有关等电子系参数进行里德伯系性质的描述很准确,而且在一定程度上反映了这两种系列之间的区别和联系。关于价电子轨道波函数节点数的校正,亦是本文的核心内容之一。 关键词：     

用实物期权分析方法评价高科技公司

在实物期权分析理论的框架下,开发了更一般的评价高科技公司的模型.利用随机动态规划和实物期权理论,本文得到了高科技公司价值所满足的偏微分方程.在特殊情况下,给出了解析解,并分析参数对高科技价值的影响,最后,给出一个实例来说明本文的结论.     

Neural Signal Tuned by Random Long-range Connections in Coupled FitzHugh-Nagumo Neurons Systems

We investigate the effect of random long-range connections on signal propagation in an array of coupled FitzHugh- Nagumo （FHN） neurons. The neural network can be obtained by randomly adding a small fraction of shortcuts in an originally locally coupled one-dimensional chain. It is shown that when the first neuron is subjected to external stimuli, it fires and excites its connected neighbours, such that the neural signal may propagate along the chain favoured by the shortcuts. Moreover, there exists an optimal number of shortcuts which can lead to the most synchronous behaviour. In addition, how the region of the fraction of shortcuts varies with the coupling strength is also discussed. These results suggest that topological disorder in the neural network may play a vital role in helping information processing in living systems.     

INFORMA基于TMN 的OXC''''s 信息建模(英文)

本文介绍了对多波长光传送网实施基于ＴＭＮ 管理中涉及的信息建模的方法问题，在建议了一组用于描述光传送网通用功能的基本传送对象类的基础上，讨论了几种典型ＯＸＣ′ｓ 信息建模的方法，包括可能用到的对象类，这些方法和对象类为建立实际的、完整的ＯＸＣ′ｓ 信息模型提供了的基础－