MSP-G320240DBCW-211N大规模点阵式LCD与PIC单片机接口技术

介绍了大规模点阵式液晶显示器MSP-G320240DBCW-211N的特点及其与PIC18F6620单片机的接口技术，提出了应用过程中可能遇到的问题和解决方法．给出相关的C程序设计并在研制的智能光电检测仪器上得以成功地应用。     

数字视频广播中可靠组播的实现

数字视频广播是一种新型的电视广播技术,它和计算机技术相融合,利用现有的有线电视网络实现大范围远距离的可靠内容的广播.由于不是所有的主机都需要这些报文,因此IP广播浪费了网络资源,而将IP组播技术用于数字视频广播,能有效地利用网络资源.     

Monolithic integration of InGaAsP/InP lasers and heterostructure bipolar transistors by selective area epitaxy

The authors describe the use of selective area epitaxy to prepare monolithically integrated lasers and heterostructure bipolar transistors based on InGaAsP/InP. Selective growth offers a versatile method of lateral integration of structurally dissimilar devices with the different device structures grown side by side in different growth cycles. Individual devices can be optimised separately without any performance compromise. Bipolar transistors grown on the semi-insulating current blocking layers of the buried heterostructure lasers show high gain, high breakdown voltage and excellent high current stability. Laser threshold is reached at a base current as low as 160 mu A and the light output is linear with current to 10 mW.<>     

氧气放电辅助激光淀积原位制备高T_c超导薄膜

采用低压氧气放电辅助的激光淀积方法,原位外延生长出零电阻温度91K,临界电流密度10~5A/cm~2的Y-Ba-Cu-O高温超导薄膜。扫描电镜和X光衍射分析结果表明,薄膜中超导相晶粒的生长具有c轴垂直于表面的择优取向。     

脉冲激光淀积高电流密度的YBCO超导带材

采用脉冲激光加辅助离子源的方法在长为６．０ｃｍ的ＮｉＣｒ合金基带上制备０．１３μｍ厚的Ｙ－ＺｒＯ２（ＹＳＺ）隔离层，再用脉冲激光在ＹＳＺ／ＮｉＣｒ带上制备１．５μｍ厚的ＹＢａ２Ｃｕ３Ｏ７－ｘ超导厚膜形成ＹＢＣＯ／ＹＳＺ／ＮｉＣｒ超导带材。实验测得在７７Ｋ，０Ｔｅｓｌａ下其临界电流密度为８．７５×１０４Ａ／ｃｍ２，超导转变温度为８８．６Ｋ。     

一种多传感器信息融合点目标识别方法（二）

提出了一种多传感器信息融合识别空间复杂弹道式目标及其伴随诱饵的识别模型。将人工神经网络和确定性理论结合起来，以神经网络的输出代替应用确定性理论所需的有关领域专家的知识和经验，并用确定性理论进行不同空域和时域的信息融合。仿真结果表明，经过融合后，大大改善了识别效果。     

码头庄油田延长稳产期对策研究

以码头庄油田为研究对象,应用高分辨率层序地层学理论对储层精细划分和对比,在储层建筑结构分析基础上划分流动单元,通过对油藏水淹特征研究和剩余油分布预测,探讨了延长油田稳产期的方法和对策,并指导油田开发调整,取得了很好的实践效果。     

基于粒子群分类器的遥感图像目标识别

设计了一种用于遥感图像目标识别的粒子群分类算法。首先对数据样本预处理,利用粒子群优化算法通过训练数据进行分类规则的提取,根据提取得到的规则对遥感图像的目标进行分类识别。通过对实测遥感图像中飞机和舰船目标的识别实验,验证了此算法对遥感图像目标具有较高的识别率。     

Constructing a novel single-layer white organic light-emitting device through a new sky-blue fluorescent bipolar host

A novel device concept was realized for simple single-layer small-molecule white organic light emitting devices. The single organic active layer here is simply comprised of a newly synthesized sky-blue fluorescent bipolar host (TPASO) and a common orange phosphorescent dopant. Suppressed singlet Föster energy transfer induced by a low-concentration doping and spontaneous high- to low-lying triplet energy transfer, respectively, lead to sky-blue fluorescence from TPASO and orange phosphorescence from the dopant. The resulting two-organic-component device exhibits a low turn-on voltage of 2.4 V, maximum current/power efficiencies up to 11.27 ± 0.02 cd A⁻¹ and 14.15 ± 0.03 lm W⁻¹, and a warm-white CIE coordinate of (0.42, 0.45) at 1000 cd m⁻².     

Comments on "An efficient PML implementation for the ADI-FDTD method"

For original paper see Wang and Teixeira (IEEE Microwave Wireless Comp. Lett., vol.13, p.72-4, 2003 February). In this paper, a more precise way to evaluate the actual performance of the perfectly matched layer (PML) used for the alternating direction implicit finite-difference time-domain (ADI-FDTD) method is presented. It is shown that the intrinsic numerical dispersion error of the ADI-FDTD method must be taken into account when the actual performance of the ADI-PML (as well as the ADI-FDTD method) is evaluated. Most importantly, it is demonstrated that the ADI-PMLs implemented with either the traditional manner or the way proposed in have almost the same level of accuracy when the performance of the ADI-PML is correctly evaluated.