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报告分类:外文技术报告

  • 3951.富氢气体生产的催化热解半焦蒸汽气化研究

    [电力、热力、燃气及水生产和供应业] [2014-04-08]

    Steam gasification of biochar from catalytic pyrolysis of biomass was studied in a fixed bed reactor at atmospheric pressure.The experiments were carried out at bed temperature of 700,750, 800 ℃ at steam flow rate of 0.1 g/min with reaction time of 3h.The gases produced included mainly H2, CO, CO2 and some small molecular hydrocarbons.The results showed that high gasification temperature was favorable for the production of hydrogen-rich gases.The maximum concentration of hydrogen exceeded 85% at 800 ℃ and the total gas yield increased with temperature rising.Meanwhile, the conversion efficiency of biochar at 700, 750, 800 ℃ was 48%,60%, 72% respectively.

    关键词:生物质能;生物碳;催化热解;蒸汽气化;氢
  • 3952.一种新型爬树机器人:Treebot1

    [电气机械和器材制造业] [2014-04-08]

    关键词:光机电;机器人;爬虫;二叉树
  • 3953.支持先进的海军陆战队指令控制概念的基于代理的分布式网络

    [信息传输、软件和信息技术服务业] [2014-04-08]

    The capabilities that Mobile Ad Hoc Networking (MANET) technologies can provide to the Marine Corps are just fully coming into view. These new capabilities represent a much more apparent symbiotic relationship between maneuver at the tactical level and the capabilities of a network that supports that maneuver. However, in order to properly leverage these capabilities, a paradigm shift in what networks are and how they are managed must take place. As this new model of meshed, ad-hoc network devices presents a shift in how we employ our networks, the concept of network management must also shift in how we view planning and maintaining networks. This research describes a communication framework and network management system (NMS) that supports the design of network aware systems that enable a robust self-management capability in MANETs.
    关键词:通信;指令控制系统;通信和无线电系统;分布式网络
  • 3954.交互式机器人教学的混合行动方针

    [电气机械和器材制造业] [2014-04-08]

    Integrating the components described in the previous articles of this chapter, we introduce the Bielefeld "Curious Robot", which is able to acquire new knowledge and skills in direct human-robot interaction. This paper focuses on the cognitive architecture of the overall system. We propose to combine (i) a communication layer based on a generic, human-accessible XML data format, (ii) multiple low-level sensor and control processes publishing their sensor information into the system and receiving commands or parameterizations from higher-level deliberative processes, and (iii) high-level coordination processes based on hierarchical state machines. The efficiency of the proposed approach is shown in an interactive tutoring scenario, where the Bielefeld "Curious Robot", a bimanual robot system, should learn to identify, grasp, and clean various everyday objects from a table. The capability of the system to interact with lay persons is proven in a user study.
    关键词:光机电;机器人;交互;策略
  • 3955.加氢植物油与石油衍生燃料的比较及在压缩点火发动机中瞬态等离子体点火的效果

    [电力、热力、燃气及水生产和供应业] [2014-04-08]

    This thesis presents the results of an experimental study of the combustion characteristics of algae and camelina derived biofuels as well as the effects of Transient Plasma Ignition in a Compression-Ignition Engine. Testing was conducted for Hydrotreated Renewable Diesel, algae, and benchmarked against F-76 and Diesel No. 2 fuels as well as Hydrotreated Renewable Jet, camelina, benchmarked against JP-5 across a matrix of constant engine speeds and engine loads in a Detroit Diesel 3-53 legacy engine. A heat release rate analysis and a cycle analysis were performed at each matrix point. The algae and camelina fuels averaged 1.4 Crank Angle Degrees earlier ignition, 2 Crank Angle Degrees longer burn duration, 2.25 atmospheres decrease in Peak Pressure, 1.4 Crank Angle Degrees delay in Angle of Peak Pressure, 0.5increase in Indicated Mean Effective Pressure, and 6decrease in Break Specific Fuel Consumption than their petroleum counterpart. A comparison between Diesel No. 2 at idle was performed between Transient Plasma Ignition Assisted Compression-Ignition and conventional Compression-Ignition.
    关键词:生物质能;等离子体;植物油;氢化植物油;石油燃料;发动机
  • 3956.基于FPGA的机器人的远程监控系统的设计

    [电气机械和器材制造业] [2014-04-08]

    In the current monitoring system, for the monitoring sites (such as storage, home, radioactive places and other harmful places), no dead ends and comprehensive monitoring is completed by installing a large number of fixed cameras and hiring many security persons to achieve, a lot of cameras installed are complicated; expensive and wasting a lot of manpower and material resources. Meanwhile, the fixed camera monitoring is just rigid; no early warning functions and requiring the security persons to be on duty all the time. At the same time, the records of on-site monitoring need to be large capacity storage medium. Therefore, to solve the problems of above in practical, we design an intelligent network monitoring system which is a set of non-dead mobile monitoring; automatic warning; automatic voice alerting; automatic storage of suspicious scene. By fixing the cameras; wireless routers; GPRS module; voice module and power management modules, with the Altera DE2 board to build a wheeled robot. The wheeled robot realizes the real-time monitoring of unmanned sites and solves the issues of complex installing and adverse monitoring to a large extent.
    关键词:光机电;机器人;FPGA;DE2;监控
  • 3957.犯罪情报信息的共享和协作紧急社交软件平台的建设

    [信息传输、软件和信息技术服务业] [2014-04-08]

    Information sharing and collaboration among federal, state, and local agencies has been repeatedly stressed as a part of the national security strategy. The emphasis has been on interagency communication and has largely left unaddressed the need for internal information system improvements. This thesis will examine how Web 2.0 technology as part of an emergent social software platform (ESSP) can be used to improve intra-agency law enforcement criminal information sharing and collaboration.
    关键词:通信;犯罪情报;信息共享;紧急社交软件平台;数字通信;Web2.0
  • 3958.快速检测煤制合成气的新型陶瓷薄膜集成光纤的光传感器研究

    [电力、热力、燃气及水生产和供应业] [2014-04-08]

    The overall goal of this project is to conduct fundamental studies on advanced ceramic materials and fiber optic devices for developing new types of high temperature (>500(degree)C) fiber optic chemical sensors (FOCS) for monitoring fossil (mainly coal) and biomass derived gases in power plants.This report summarizes research works of two integrated parts: (1) development of metal oxide solid thin films as sensing materials for detection and measurement of important gas components relevant to the coal- and biomass-derived syngas and combustion gas streams at high temperatures; and (2) development of fiber optic devices that are potentially useful for constructing FOCS in combination with the solid oxide thin films identified in this program.
    关键词:生物质能;陶瓷;光纤;薄膜;光传感器;化学传感器;发电站
  • 3959.会说话的机器人对人力发声歌唱的模仿

    [电气机械和器材制造业] [2014-04-08]

    A talking and singing robot which adaptively learns the vocalization skill by an auditory feedback learning is being developed. The fundamental frequency and the spectrum envelope determine the principal characteristics of a sound. The former is the characteristics of a source sound generated by a vibrating object, and the latter is operated by the work of the resonance effects. In vocalization, the vibration of vocal cords generates a source sound, and then the sound wave is led to a vocal tract, which works as a resonance filter to determine the spectrum envelope. The paper describes the construction of vocal cords and a vocal tract for the realization of a talking and singing robot, together with the control algorithm for the acquisition of singing performance by mimicking human vocalization and singing voices. Generated voices were evaluated by listening experiments.
    关键词:光机电;机器人;人声模仿
  • 3960.计算科学:通信结构发生网的验证和仿真工具

    [信息传输、软件和信息技术服务业] [2014-04-08]

    Occurrence nets (ONs) are acyclic Petri nets recording single system executions. Structured occurrence nets (SONs), composed of multiple ONs together with additional relationships, are intended for portraying the behaviour of complex evolving systems. Such systems generally consist of a large number of sub-systems which may proceed concurrently and interact with each other. In this paper, we describe a tool support for visualisation, verification and simulation of occurrence nets, and of communication structured occurrence nets which are a basic variant of SONs.
    关键词:通信;结构发生网;佩特里网;模拟;仿真
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