Supervisory Control and Data Acquisition (SCADA) systems are deeply ingrained in the fabric of critical infrastructure sectors. These computerized real-time process control systems, over geographically dispersed continuous distribution operations, are increasingly subject to serious damage and disruption by cyber means due to their standardization and connectivity to other networks.However, SCADA systems generally have little protection from the escalating cyber threats. To achieve defense-in-depth for SCADA systems by means of intrusion detection and resilient control,this dissertation strives for a robust stochastic signal and system approach without being overly-pessimistic. Its main elements are (1) two SCADA-specific comprehensive taxonomies with one on cyber attacks and the other on intrusion detection system to layout the lay of the land and shed light to the workspace, (2) one overall framework/architecture for intrusion detection and resilient control – Xware (3) its measurement fusion assurance component – Trust counter, (4) one signal-based early-detection and resilient estimation scheme with proved theoretical performance bounds, for SCADA systems in general. Especially the said Robust General Likelihood Ratio Test (RGLRT) is generic enough and has been applied to linear dynamical systems in general and beyond.(5) The application of RGLRT in network traffic anomaly detection. (6) The application of RGLRT to anomaly detection for SCADA systems in smart grids through model construction and identification for both clean renewable energy supply and variable consumer demand.

关键词：弹性控制；入侵检测；数据采集；深度防护

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关键词：数据库系统；数据存储；磁盘；内存

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The proliferation of large High-Performance Computingclusters executing computation-intensive jobs on largedata sets has made cluster power proportionality very important [13]. Despite publicly available traces showing that many clusters have a low average utilization,existing power-proportionality techniques have seen low adoption, a major reason being that these techniques require modifications to the existing cluster software and network stack, and do not address the reliability concerns that may arise during the course of server powercycling.We present Hypnos, a defensive power proportionality system which is unobtrusive, extensible and gracefully handles possible server software and hardware failures which may occur during server power-cycling. We deployed Hypnos on a 57-server production cluster. From a 21-day run, we obtained a 36% energy saving in spite of multiple server and network failures.

关键词：HPC框架；数据集；网络堆栈,；服务器软件

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Reactive systems are increasingly developed using high-level modeling tools. Such modeling tools may facilitate formal reasoning about concurrent programs, but provide little help when timing-related problems arise and deadlines are missed when running a real system.In these cases, the modeler has typically no information about timing properties and costly parts of the model; there is little or no guidance on how to improve the timing characteristics of the model. In this paper,we propose a design methodology where interactive timing analysis is an integral part of the modeling process. This methodology concerns how to aggregate timing values in a user-friendly manner and how to de netiming analysis requests. We also introduce and formalize a new timing analysis interface that is designed for communicating timing information between a high-level modeling tool and a lower-level timing analysis tool.

关键词：交互设计；定时分析；反应系统；建模工具；时机分析

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随着我国经济的快速发展，我国制造型企业以及其他企业的发展也越来越迅速。企业的快速发展在很大程度上增加了企业物流仓储的需求，这样一来企业在物流仓储管理方面花费的成本越来越大，仓储管理难度也越来越大。在这种情况下企业把物联网技术引入企业物流仓储管理中，利用物联网高效、准确的工作特点对货品进行仓储管理能够在很大程度上提高企业物流仓储管理水平。

关键词：物联网；仓储管理；智能搬运

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关键词：4G格局；终端产业链；TDD；FDD

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本文提出了国有通信服务企业实现提高品牌选择度和忠诚度两大战略目标应采取的行之有效的几点措施，最后就国有通信服务企业品牌形象的塑造进行简单的论述。

关键词：国有通信服务企业；通信市场；通信服务；品牌

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关键词：营增改；补贴政策；终端补贴

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根据自身的特点及目标市场的不同，电信运营商在传统市场和新兴业务领域所采取的国际化运营方式各不相同。我国电信运营商在国际化经营过程中要循序渐进，充分利用各种资源，因地制宜地开展各项国际化拓展业务。

关键词：电信运营商；国际化运营方式；海外模式

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近年来，非洲互联网取得较快发展，互联网用户数和宽带用户数增长非常迅速，网络建设和业务发展需求空间很大，可以说，非洲市场是我国电信业走出去的重要机遇。我国设备制造企业、增值电信企业以及金融机构在产品销售和服务、互联网运营领域以及基础建设项目等方面都有着明显的合作机会。

关键词：非洲互联网业务；电信业发展；机遇

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