InGaAs／GaAs垂直对准量子点超晶格的正入射红外吸收

利用分子束外延技术，生长了３０周期的ＩｎＧａＡｓ／ＧａＡｓ量子点超晶格，透射电镜表明各层量子点沿生长方向呈现很好的垂直对准，红外吸收测试观察以明显的垂直入射红外吸收，吸收范围为８．５～１０．４μｍ之间，峰值波长为９．９μｍ第一次实现了响应８～１２μｍ大气窗口的量子点的垂直入射红外吸收，这一结果预示了量子点超晶格结构在红外探测领域的潜在应用。     

IP和ATM网络技术的综合发展

本文主要介绍了ＩＰ和ＡＴＭ网络综合发展的现状以及目前ＩＰ和ＡＴＭ结合中还存在的关键技术问题，如多播、业务综合和路由选择以及它们对网络结构的影响。     

准分子激光角膜原位磨镶术治疗高度近视

本对８６例１６２只眼屈光度平均为－１１．２８±５．１１Ｄ（－６００－２７００Ｄ）高度近视行准分子激光角膜原位磨镶术（ＬＡＳＩＫ），术后半年视力、屈出度与术前比较，明术后视力、屈光度变化有规律性、分析影响疗效的因素，肯定ＬＡＳＩＫ术矫正高度近视有效、安全、预测性强、稳定性好，并发症少。     

求通信网生存能力的一种分裂二叉树算法

本文研究了布尔代数方法在通信网生存能力分析中的应用，提出了一种求布尔代数式不交化变换的分裂二叉树算法，与现有的同类算法相比，该算法具有结构清晰、执行效率高、易于实现等优点。     

多用户波束优化设计在智能天线系统中的应用

本文讨论了智能天线系统中的下行波束形成问题。智能天线可以通过阵列天线技术在同一信道中利用多个波束同时给多个用户发送不同的信号，以提高通信容量和质量。本文提出了蜂窝小区移动通信体制下波束形成的约束模型，并基于该模型利用Ｃｈｅｂｙｓｈｅｖ线阵实现多波束优化设计。理论分析及仿真结果表明，与目前其它方法相比，该方法具有空间分辨力高、计算量小、稳健性好等优点，有较强的实用性。     

分子振动态及其跃迁的激光相干控制

讨论了激光合成相干叠加态的原理及其性质 ,针对 XY2 型分子 ,证明了合成局域模振动的可行性 ,然后给出相干叠加态的跃迁几率特征 ,发现它仍表现出相干的特性 ,对之进行分析研究表明 ,分子的振动态具有可控性 ,态跃迁几率具有可控性。     

复杂目标近场电磁散射的可视化计算方法

首次介绍了复杂目标近场散射计算的可视化方法。采用非均匀有理Ｂ样条曲面（ＮＵＲＢＳ）精确构造任意形状散射体，结合几何体近场透视变换和Ｚ－Ｂｕｆｆｅｒ技术实现了基于Ｗｉｎｄｏｗｓ平台的近场散射计算。提出广义雷达散射截面的概念并给出的若干算例。该方法充分利用了计算机３Ｄ图形设备的几何运算能力，运算速度快，严谨高，可扩展性好。     

WL2.1彩电遥控系统软件开发及相关电路设计

开发有自己特色的遥控系统是国内电视机工厂面临的一个新课题。本文简要介绍了现已投入大批量应用的ＷＬ２．１彩电遥控系统软件的特点，以及相关扫口电路的设计。     

Processing and properties of CVD diamond for thermal management

One of the many remarkable properties of diamond is its thermal conductivity, about five times that of copper and the highest of all known materials. The high thermal conductivity in combination with the relative ease of diamond film growth by chemical vapor deposition process makes the material suitable for many applications such as thermal management in high power electronic circuits. For thermal managements applications, various processing steps are needed for the diamond films, such as the metallization for reliable solder bonding, metallurgical processes for planarizing of the faceted growth surface and removal of fine-grained diamond regions with poor thermal conductivity. This paper will review the properties and processing of diamond films for thermal management applications.     

Diurnal thermal cycling effects on microwave signatures of thin seaice

To investigate effects of diurnal thermal cycles on C-band polarimetric backscatter and millimeter-wave emission from sea ice, the authors carried out a winter experiment at the outdoor geophysical research facility (GRF) in the cold regions research and engineering laboratory (CRREL), the ice sheet grew from open sea water to a thickness of 10 cm in 2.5 days, during which they took polarimetric backscatter data with a C-band scatterometer, interlaced with brightness temperature measurements at 90 GHz in conjunction with meteorological and sea ice characterizations. The initial ice growth in the late morning was slow due to high insolation. As the air temperature dropped during the night, the growth rate increased significantly. Air temperature changed drastically from about -12 to -36°C between day and night, the diurnal thermal cycle repeated itself the next day and the growth rate varied in the same manner. Ice temperature profiles clearly show the diurnal response in the ice sheet with a lag of 2.5 h behind the time of the maximum short-wave incident solar radiation. The diurnal cycles are also evident in the millimeter-wave brightness temperature data, measured sea ice backscatter revealed substantial diurnal variations up to 6 dB with repeatable cycles in synchronization with the temperature cycles and the brightness temperature modulations, the diurnal cycles in backscatter indicate that the dominant scattering mechanism related to thermodynamic processes in sea ice is reversible, a diurnal backscatter model based on sea ice electrodynamics and thermodynamics explains the observed diurnal signature. This work shows that diurnal effects are important for inversion algorithms to retrieve sea ice geophysical parameters from remote sensing data acquired with a satellite synthetic aperture radar (SAR) or scatterometer on Sun-synchronous orbits