面向复杂装备的全寿命周期软件保障研究

软件是现代复杂武器装备的核心部件,在提升装备性能的同时,对装备寿命周期内的经济可承受性和安全性提出了严峻的考验,软件保障的重要性不断凸显。随着装备综合保障研究和工程实践的不断深入,软件保障也在不断发展。首先阐述了软件保障的内涵,在分析软件自身固有特性的基础上对影响软件保障的因素进行了总结,重点对基于功能的软件和数据保障模型及软件保障性分析进行了说明,并分析了软件保障费用评估的现状,为复杂装备的软件保障提供了研究思路。     

装备软件保障技术研究

软件是现代信息装备的灵魂,软件保障是综合保障中的重要组成部分,软件保障问题也越来越突出.首先介绍了软件保障的特点、基本概念和保障原则,给出了软件保障性分析方法,然后重点说明了软件保障模式,为提高装备软件维护保障提出了有效的解决途径.     

基于IETM的便携式软件快速备份恢复设备的设计与实现

当前舰船电子装备维修过程中,在器材供应及时的情况下,硬件故障较为容易判断并修复,而软件故障则难以修复,研究舰船电子装备软件的维护以及快速恢复方法,设计一型结构原理简单,制作实现容易的便携式装备软件备份恢复设备,能够有效解决装备软件故障难以修复的问题,提高装备软件的维护保障效率,适应海军装备快速保障的发展要求,为进一步探索装备软件的维护保障方法提供具体实践。     

装备保障中的软件保障探讨

现代武器系统中的软件复杂程序越来越高，维护性要依赖于专业的软件编制人员，而在目前的装备保障，管理体制中，并没有涉及到专门的软件保障内容，本文就建立全军统一体制下的软件保障，维护体制及各层次维护的内容进行探讨，旨在提高装备保障中软件维护的可操作性，进而提高装备的综合效能。     

雷达装备综合保障数字化业务平台研究

随着大量新技术新体制雷达装备出现,采用传统的装备综合保障设计分析和验证方法已很难满足新型雷达装备的研制要求.针对上述需求,文中探讨了全寿命周期雷达综合保障数字化业务平台的功能需求、实现方案以及软件功能结构等内容.该业务平台的建设及应用对提高雷达保障效率、降低雷达装备寿命周期费用具有重要意义.     

基于虚拟仪器技术仿真开发武器装备监测保障系统

分析我军武器装备技术保障的现状与发展历程,就如何保障装备完好率与高可靠性、高可维修性提出了问题,探讨了虚拟仪器硬件平台的体系结构、软件组成、各项功能,介绍了基于虚拟仪器技术仿真开发装备检测仪器的设计思想,就开发实例阐述了该类系统的实现方法.     

基于Protege的装备保障知识本体构建方法

针对装备保障领域知识体系复杂、知识难以共享和重用等问题,在分析装备保障知识本体的需求和作用的基础上,提出一种适合装备保障知识体系的、面向生命周期的装备保障知识本体构建方法,以此为指导对后方军械仓库知识进行分类,利用Protege软件构建了一个实验性知识本体,为建立后方军械仓库知识库打下了基础。     

通信装备自动化测试、诊断综合平台系统

分析了通信装备综合技术保障的需求,介绍了建造复杂ATE系统的新概念和新模型,确立了通信装备自动测试诊断设备的研究方向。介绍了通信装备VXIbus测试诊断综合平台的软、硬件设计,在资产的互换性和软件的互操作性方面的实现,详细描述了全面提高系统的自动化和通用化的设计思想。     

雷达综合保障信息系统研究北大核心CSCD

针对雷达装备全寿命周期综合保障信息管理的需求,提出了雷达装备综合保障信息系统的设计方案,包括业务流程、软件架构、软件模块功能等,该综合保障信息系统的建立和应用对提高雷达保障效率、实现保障的自主化和智能化、降低全寿命周期费用具有重要意义。     

装备保障信息可视化

为了提高新一代发射场试验装备保障效能,充分利用装备保障信息,实现可视化精确保障。针对航天试验装备保障信息的特点和原则,采用信息可视化技术及可视化模型方法,构建了装备保障信息可视化框架。详细阐述了装备信息化保障的流程,明确了装备信息化的数据空间,分析实现了可视化映射、可视化建模和可视化展示方法,确定了航天发射场装备保障信息化的体系规划设计。     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

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.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

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.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.