MAMA紫外探测器系统与高增益MCP（三）

介绍了多阳极微道板阵列（ＭＡＭＡ）紫外探测器系统的最新结构与性能，以及高增益ＭＣＰ工作的基本特性，并给出了对各类高增益ＭＣＰ测试的结果。     

FB600型自动封罐机卷封机构设计

在详细分析了封罐机自动循环与卷封作业机理的基础上,对封罐机凸轮径向进给机构的设计计算方法进行了总结,设计出了ＦＢ６００ 型封罐机的进给凸轮。     

无人机自组网技术综述与发展展望

无人机自组网(Unmanned Aerial Vehicle Ad Hoc Network,UAVANET)主要应用于现代数字科技战场,具备传统无线自组织网络的快速组网、多跳传输和多任务协作等特点,同时拥有更高的抗毁性.无人机自组网能确保网络运行的灵活性和顽健性,但是在实际组网过程中,网络结构和组网方式的不同对作战能力...     

$nhbox{-ZnO}/nhbox{-GaAs}$ Heterostructured White Light-Emitting Diode: Nanoscale Interface Analysis and Electroluminescence Studies

n-ZnO/n-GaAs heterostructured light-emitting diodes have been fabricated by a low-cost ultrasonic spray pyrolysis technique. Nanoscale interface analysis was carried out with scanning transmission electron microscopy. An ~ 8.6-nm-thick amorphous GaAsZnInO was found in the n -ZnO/n-GaAs interface. A strong and broad white electroluminescence band centered at ~ 525 nm and a weak near-infrared emission peaked at ~ 815 nm were observed when n-GaAs was positively biased. The 815-nm emission is believed to be related to the interface layer, and the 525-nm emission is assigned to the recombination of electrons from conduction band to deep-level holes in the ZnO layer.     

电子政务PKI/CA建设的研究

中国电子政务建设中存在着许多问题,其中一个重要的问题就是没有建立国家政务PKI信任体系。本文就电子政务数字认证系统构建,以及PKI/CA域之间的桥CA认证做了一些探讨,并提出了建立国家电子政务PKI/CA体系的看法。     

智能网SCP的两级并发模型与软件容错研究

智能网作为一种能够快速灵活地定义与提供电信新业务的体系结构，近年来受到人们的普遍重视，其中，业务控制点ＳＣＰ作为整个系统的核心，它的可靠性与全网的服务质量息息相关。本文中，我们首先指出了目前的ＳＣＰ产品在容错性能上存在的不足，然后根据ＳＣＰ的结构和运行机制提出一种两级并发模型，并基于此模型对其软件容错的途径进行了深入的探讨与研究。本文首次提出了应用软件出错情况下保证所有在线呼叫可靠处理的容错目标，并在ＳＣＰ系统级与呼叫级两个并发层次上给出了切实可行的容错策略或算法，最后，我们还对ＳＣＰ软件有效度的估算进行了进一步讨论。     

Integrated VP-Based Control Strategies for ATM Survivable Networks

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Constructing Conductive Interfaces between Nickel Oxide Nanocrystals and Polymer Carbon Nitride for Efficient Electrocatalytic Oxygen Evolution Reaction

Combining transition metal oxide catalysts with conductive carbonaceous material is a feasible way to improve the conductivity. However, the electrocatalytic performance is usually not distinctly improved because the interfacial resistance between metal oxides and carbon is still large and thereby hinders the charge transport in catalysis. Herein, the conductive interface between poorly conductive NiO nanoparticles and semi‐conductive carbon nitride (CN) is constructed. The NiO/CN exhibits much‐enhanced oxygen evolution reaction (OER) performance than corresponding NiO and CN in electrolytes of KOH solution and phosphate buffer saline, which is also remarkably superior over NiO/C, commercial RuO₂, and mostly reported NiO‐based catalysts. X‐ray photoelectron spectroscopy and extended X‐ray absorption fine structure spectrum reveal that a metallic Ni–N bond is formed between NiO and CN. Density functional theory calculations suggest that NiO and CN linked by a Ni–N bond possess a low Gibbs energy for OER intermediate adsorptions, which not only improves the transfer of charge but also promotes the transmission of mass in OER. The metal–nitrogen bonded conductive and highly active interface pervasively exists between CN and other transition metal oxides including Co₃O₄, CuO, and Fe₂O₃, making it promising as an inexpensive catalyst for efficient water splitting.     

层网络管理系统间关系的研究

根据传送网的分层和分割模型,研究了传送网中各层网络管理系统间的关系,包括不同类型层网络的管理系统间和同一类型层网络的多个管理系统间的关系及其接口,并将研究的结果应用到ATM传送网的管理中。