The media sharing technique in the signal for multimedia communication is one of the necessary research issues to provide the quality-guaranteed services over IP-based NGN (Next Generation Network). This paper proposes noisy signal reduction method with considering packet loss for multi-user connected multimedia communication. In order to reduce noisy signal without packet distortion efficiently for applying to All-IP based convergence environment, we provide a shared signal reduction and recovery scheme which use an optimized Wiener filtering technique based on input-SNR estimation with adaptive both-side information utilization according to the average magnitude variation across the frames. Also, this paper presents the policy-based service overlay IPTV framework for user experiences in the Open IPTV. We suggest the EPG ought to be selectable in the Open IPTV framework for requirements. The framework is proposed with the basis of the ITU-T IPTV NGN framework with IMS (IP Multimedia Subsystem).

关键词：电子信息；NGN；多媒体框架；信号共享

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In 3G era, mobile network operators and content providers must provide mobile content service accepted by consumers to obtain more profits. It is crucial to investigate the antecedents of adoption of mobile content service and the way they interact. In this paper, we explore how customers perceive and adopt mobile content service in China. We first extend the technology acceptance model (TAM) by integrating innovation of consumer, external influence, and perceived financial cost. Then some hypotheses are raised and tested using structural equation modeling. We find that the TAM is also correct in the situation of mobile commerce. In addition, innovation of consumer, external influence, and perceive financial cost have influence on the intention of adopting mobile content service. Managerial insights are generated in the last part of this paper.

关键词：电子信息；3G；移动服务；中国

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This report describes an updated version of the WTAQ computer program first published in 1999. The program simulates axial-symmetric flow to a well pumping from a confined or unconfined (water-table) aquifer. The performance of the program has been tested in a variety of applications, some of which are documented in this report. Future applications, however, might reveal errors that were not detected in the test simulations. Users are requested to notify the U.S. Geological Survey of any errors found in this report or the computer program by using the address on the inside of the back cover of the report. Updates might occasionally be made to both the report and to the computer program.

关键词：电子信息；计算机；水层测试；程序

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This report summarizes general activity including updates to the National Cyber Awareness System in February 2012. It includes current activity updates, alerts, and bulletins, in addition to other newsworthy events or highlights.

关键词：电子信息；计算机；美国；总结

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This project introduced into the VTB iterdisciplinary system design/simularbn environment several gaming concepts such as network-centric multiplayer interactions, detection dfiterferences between independent client-side simulation models, and simplified human interfaces to physics-basediodels. It also developed new computing methods that facilitate exploitation of the gaming environment for desigpurposes. Technic? progress can be separated into two broad categories; realization of a hybrid physics-basedjaming environment as a surrogate for a highly-interactive design environment, and improvement of simulation speed sthat the physics-based gaminj environment can operate fast enough for effective human interaction.

关键词：电子信息；计算机；工程设计；游戏模式

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The Army needs to manage threats from toxic industrial chemicals (TICs) during the Intelligence Preparation of the Battlefield (IPB) Process. This work unit involved developing a database of TICs that could pose environ-mental/operational risk, creating an industry/chemical crosswalk, linking the chemical database to a GIS component, applying and evaluating the system in five hypothetical scenarios. The resultant program, which was christened “TIC-Master,” has the capability to enhance urban theater of operations analysis to identify TIC/toxic industrial material (TIM) affiliated activities within the battlefield operational footprint and evaluate consequence management alternatives for decision support during the IPB process. TIC-Master was tested in a series of demonstrations. Facilities in the Jackson/Vicksburg MS area were used to test the program. Actual chemical data were obtained for several facilities by securing Tier 2 EPA (Environmental Protection Agency) reports for the facilities of interest. A test team was assembled to develop scenarios based on the industries represented by the facilities. TIC-Master was then used to address the scenarios. Although some deficiencies were identified, the program was successful at encompassing the chemical risk presented by the TICs found at the facilities. Plume modeling was used to assess release scenarios. Subsequent briefings of the program were conducted with potential users at the Army Maneuver Support Center of Excellence (MSCoE) and the Army Intelligency Center (AIC). Constructive suggestions were received and are presented in this document. Overall, the potential users agree that the TIC-Master could be a valuable tool for the Army and other organizations. Ultimately, populating tactical decision-making tools with critical informa-tion leads to a greater knowledge of the battlefield and increases survivability.

关键词：电子信息；计算机；战场情报准备；评价

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The nuclear industry is constantly trying to find ways to decrease the human error rate, especially the human errors associated with procedure use. As a step toward the goal of improving procedure use performance, researchers, together with the nuclear industry, have been looking at replacing the current paper-based procedures with computer-based procedure systems. The concept of computer-based procedures is not new by any means; however most research has focused on procedures used in the main control room. Procedures reviewed in these efforts are mainly emergency operating procedures and normal operating procedures. Based on lessons learned for these previous efforts we are now exploring a more unknown application for computer based procedures - field procedures, i.e. procedures used by nuclear equipment operators and maintenance technicians. The Idaho National Laboratory and participants from the U.S. commercial nuclear industry are collaborating in an applied research effort with the objective of developing requirements and specifications for a computer-based procedure system to be used by field workers. The goal is to identify the types of human errors that can be mitigated by using computer-based procedures and how to best design the computer-based procedures to do so. This paper describes the development of a Model of Procedure Use and the qualitative study on which the model is based. The study was conducted in collaboration with four nuclear utilities and five research institutes. During the qualitative study and the model development requirements and for computer-based procedures were identified.

关键词：电子信息；计算机；核电站；程序开发

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The design of pavement structures in cold climates must account for the changes in soil properties due to the influence of freezing and thawing cycles. The calculation of the frost penetration depth is a fundamental step in the design and evaluation of pavement structures by the U.S. Department of Defense (DoD). To compute the frost penetration, the DoD currently uses the modified Berggren (ModBerg) equation. The Unified Facilities Criteria (UFC) 3-130-06 includes a methodology to manually compute the frost depth. The Pavement-Transportation Computer Assisted Structural Engineering (PCASE) software incorporates a more accurate numerical solution of the ModBerg equation, which in some instances provides slightly different values than the manual solution described in the UFC. Researchers from the U.S. Army Engineer Research and Development Center (ERDC) realized the need to explain why the same procedure results in different values of the frost depth, and sought to reaffirm the importance of advanced numerical tools in pavement design and evaluation. The objective of this report is to present the solution of the heat equation applied to a onedimensional homogeneous and isotropic layer, which is currently implemented in the PCASE software. The report also explains the differences between the UFC- and PCASE-computed solutions.

关键词：电子信息；计算机；尼尔森方程；路面结构

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A numerical study aimed to evaluate different preconditioners within the Trilinos Ifpack and ML packages for the Quantum Computer Aided Design (QCAD) non-linear Poisson problem implemented within the Albany code base and posed on the Ottawa Flat 270 design geometry is performed. This study led to some new development of Albany that allows the user to select an ML preconditioner with Zoltan repartitioning based on nodal coordinates, which is summarized. Convergence of the numerical solutions computed within the QCAD computational suite with successive mesh refinement is examined in two metrics, the mean value of the solution (an L1 norm) and the field integral of the solution (L2 norm).

关键词：电子信息；计算机；辅助设计；泊松问题

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This research effort is concerned with the advancement of computer generated forces AI for Department of Defense (DoD) military training and education. The vision of this work is agents capable of perceiving and intelligently responding to opponent strategies in real-time. Our research goal is to lay the foundations for such an agent. Six research objectives are defined: 1) Formulate a strategy definition schema effective in defining a range of RTS strategies. 2) Create eight strategy definitions via the schema. 3) Design a real-time agent framework that plays the game according to the given strategy definition. 4) Generate an RTS data set. 5) Create an accurate and fast executing strategy classifier. 6) Find the best counterstrategies for each strategy definition. The agent framework is used to play the eight strategies against each other and generate a data set of game observations. To classify the data, we first perform feature reduction using principal component analysis or linear discriminant analysis. Two classifier techniques are employed, k-means clustering with k-nearest neighbor and support vector machine. The resulting classifier is 94.1accurate with an average classification execution speed of 7.14 us. Our research effort has successfully laid the foundations for a dynamic strategy agent.

关键词：电子信息；计算机；生成兵力；策略框架

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