基于XML的城市火灾应急预案生成系统

XML的自描述、开放性、跨平台等优点适合表示应急预案.以城市火灾救援为背景,用XML来描述应急预案知识库中的规则,并通过地理信息库将道路、兵力分布等信息在地图上显示,最后结合应急预案模板实现XML格式应急预案的自动生成.系统的实现表明了该方法在工程应用中的可行性.     

轴向运动目标的热光高阶鬼成像研究

提出一种基于B样条概率密度函数(PDF,probability density function)估计的复杂纹 理图像分类识别方法,主要包括图像纹理PDF特征学习、 表征以及纹理类型识别3个步骤。在图像纹理PDF特征学习和表征中,引入各向异性高斯导 数方向滤波器获得纹理图像多尺度和 多方向空间结构;然后基于预先固定的B样条基函数,将图像空间结构PDF估计转化为与 基函数相对应的权值向量估计;之 后采用最远邻聚类方法,获得图像空间纹理结构的PDF特征字典库;最后采用最近邻方法, 获得各类纹理在特征字典库上的直方图 分布表示。在纹理类型识别阶段,基于直方图距离测量结果实现纹理图像分类识别。在不同 纹理图像数据库上进行了大量的验证性和对比性实验,实验结果表明所提方法的有效性 和优越性。     

济南市突发环境事件应急处置系统总体框架与技术研究

突发环境事件应急处置系统研发主要目的包括:1)建立全市风险源数据库,配合污染源在线监控和视频监控,提升风险预防水平;2)建立完整的决策支撑数据库(包括:危化品库、应急预案库、应急资源库、知识库、GIS空间数据库)和水气污染扩散模型,提升事故发生后指挥调度的决策支持水平;3)利用现代计算机技术、地理信息系统技术和网络技术,有机整合涉及环境应急的各种信息资源,建立起贯穿"事故预防—事中处理—事后总结"全过程的环境应急管理软件系统,提升环境应急管理的信息化水平。系统的研发,对于全面提升济南市环境应急管理能力,高效应对突发环境污染事件具有重要的意义,同时为我国城市级环境污染事故应急处置系统建立起到良好的示范作用。     

基于Gabor特征的稀疏表示纹理分割研究

稀疏表示和字典学习在图像去噪、图像重建和模式识别等应用上取得了良好的效果,其利用稀疏系数和重构误差来作为模式分类的判别准则。稀疏表示纹理分割方法是将图像分割问题转换为像素点的分类问题。但通常稀疏表示分类方法是基于图像块特征,难以准确表征图像纹理信息。为了解决上述问题,提出基于Gabor特征的稀疏表示纹理分割方法。因为Gabor特征对图像纹理信息的鲁棒性,算法首先从每类纹理中选择一些像素点作为训练样本,计算其不同尺度和方向下的Gabor特征,将其作为初始化字典,通过判别性的字典学习算法(D-KSVD)更新字典,该字典学习算法在KSVD基础上使得字典更具有类别判别能力,最后以待分割图像的每个像素点作为测试样本,计算其Gabor特征。利用OMP算法得到测试样本在字典下的稀疏系数,根据稀疏系数得到类标签,进而对像素点进行分类,完成分割。通过在Brodatz纹理库上的实验结果表明,该方法有效提高了稀疏表示算法对纹理图像分割的正确率。     

基于稀疏表示的立体图像客观质量评价方法

提出了一种基于稀疏表示的立体图像质量评价方法 ,分为训练和测试两个部分。在训练部 分,通过训练不同频带的立体图像获得立体图像的稀疏字典;在测试部分,根据稀疏字典计 算得到立体图 像的稀疏特征,定义了稀疏特征相似度衡量原始和失真图像信息的差异,并根据稀疏字典计 算了频带增益和左右视点的融合权值,最后融合稀疏特征相似度作为立体图像质量的 客观评价值。在立体图像测试库上的实验结果表明,本文方法的评价结果与主观评价结果有 较好的相关性,符合人类视觉系统的感知。     

改进的信息散度法在蚀变矿物分类中的研究

为了有效获取待测光谱类型,采用信息散度匹配法对其进行分类处理。根据不同矿物具有不同的光谱特征曲线,建立不同矿物光谱曲线的标准光谱库,再采用信息散度法对待测矿物光谱与标准库中的光谱进行匹配,进而得出一种标准光谱库下的信息散度匹配法。采用该方法对实际光谱曲线进行分类处理,结果表明提出的方法能够有效对光谱曲线进行匹配,判别待测光谱所蕴含矿物类型,所得出的蚀变矿物类型与岩矿鉴定结果具有较高的吻合度,有利于提取蚀变矿物信息。     

建设法规政策知识库智能化查询分析与设计

针对建立“智能化建设法规政策知识库”，文章提出并重点研究了将词表知识库应用于智能化查询的分析与设计，应用数据挖掘中的关联规则算法实现了系统部分知识挖掘功能。目前，本系统处于建设中。所完成的工作对大型文献智能知识库系统的开发具有一定借鉴意义。     

基于自适应多字典学习的单幅图像超分辨率算法

自适应字典学习利用图像结构自相似性,将图像自身作为训练样本,通过字典学习使图像中的相似块在字典下具有稀疏表示形式.本文将全局字典学习中利用图像库获取附加信息的思想融入到自适应字典学习的过程中,提出了一种基于自适应多字典学习的单幅图像超分辨率算法,从低分辨率图像自身与图像库同时获取附加信息.该算法对低分辨率图像金字塔结构中的图像块进行聚类,在聚类结果的引导下将图像库中的图像块进行分类,利用各类中的样本分别构建针对各类的多个字典,从而确定表达重建图像块的最优字典.实验表明,与ScSR、SISR、NLIBP、CSSS以及mSSIM等算法相比,本文算法具有更好的超分重建效果.     

广播电台应急广播制播业务分析

本文对应急广播制播的背景和现状进行了介绍,分析了目前现有的制播业务体系,并对电台音频节目制作的主要技术规范和要求进行了说明;对应急广播信息的概念、事件类型、事件级别、信息来源、信息格式和信息展现进行了多角度分析,提出了广播电台应急广播制播业务体系,重点讨论了应急广播制播的业务架构、支持库、技术架构、业务功能以及安全要求等。     

翻译引擎

翻译引擎是机器翻译体系的核心所在,支持多线程,也是使用者在挑选产品时所要着重考虑的标准之一。目前拥有英汉(简繁体中文)、汉英(简繁体中文)、汉日、日汉多种翻译引擎。翻译引擎充分考虑了当今世界一体化对语言翻译的需求,采用最先进的语言分析技术,依据语法信息,并结合语义进行翻译。翻译引擎一般拥有强大的词典库和规则库,可支持几十部英汉专     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

Complete approach to automatic identification and subpixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

Electronic Structure of Semiconductor Nanocrystals

This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Critical Stage Rule-Based Real Time Dispatch（RTD）System in Highly-Mixed-Products （HMP） FAB

An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.