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关键词： HPC和COTS技术   软件雷达硬件系统   结构设计  

摘要： 利用HPC系统强大的运算能力和高速数据传输带宽,通过网络互连所构成的网络拓扑结构,再结合基于具有可靠的工作性能和较低的成本,并且具有标准化、同类器件可替换的COTS技术的产品作为计算节点,构建了一种标准化、模块化的软件雷达硬件体系结构。

关键词： 形状记忆   互穿网络结构   AB型网络结构   规整网络结构   “互锁”网络拓扑结构  

摘要： 形状记忆聚合物是一种可以响应外界刺激,并调整自身状态参数,从而回复到预先设定状态的一种智能高分子材料。它是智能高分子材料研究、开发和应用的一个新热点。在智能纺织材料、生物医用材料、航空航天技术等领域显示了极为广阔的应用前景。为了使形状记忆聚合物材料在这些领域具有更加实际和广泛的应用,通常要求这些材料要有更高的固定率和回复率、更快的回复速度、优异的机械性能和良好的性能可控性。通常情况下材料的结构决定其性能,因此形状记忆聚合物的结构化设计是一个非常值得探讨的话题。本文从网络结构化设计的角度综述了基于互穿网络结构、AB型网络结构、规整网络结构、"互锁"网络拓扑结构设计的形状记忆高分子材料的研究进展,分别介绍了这些材料的结构和性能的关系、特点及其潜在应用。最后,对具有网络结构形状记忆高分子材料的发展方向和应用前景进行了展望。

关键词： 面向对象   UML   建模机制  

摘要： 目前,医院信息化建设已成趋势,现有的管理系统不能满足应用要求,医院信息管理系统设计成为迫待解决的问题。文章首先使用UML建模工具对系统进行了分析,介绍了UML的静态和动态建模机制,给出了UML分析过程主要模型及相互关系图。并就其中一个重要组成部分—门诊子系统进行了详尽的设计和实现。在此过程中,进行了问题领域的分析,确定了医院管理系统功能模块图,采用了用例建模、顺序图建模的方法,来完成系统各模块层的实现,同时对用户界面层的功能进行了介绍,最后对系统的未来发展趋势进行了展望。

关键词： 形式化方法   Z语言   业务基础软件平台   软件工程   装备管理  

摘要： 为提高装备管理软件开发效能,本文将形式化方法与软件工程化思想有机结合,给出了基于Z语言的装备管理业务基础软件平台的体系结构和设计,并基于Z-EMP平台开发了AA-MIS原型系统,验证了Z-EMP平台的研究方向和设计思想是正确可行的,为解决装备管理信息系统软件开发问题提供了一种思路和方法。

关键词： RISCWare   Middleware   Plug and play   Teleoperation   Face detection   Face recognition   Modular design   Architecture   RISCbot II  

摘要： In this paper, the RISCWare framework is proposed as a robotic middleware for the modular design of sensory modules, actuation platforms, and task descriptions. This framework will be used to customize robotic platforms by simply defining the available sensing devices, actuation platforms and required tasks. In addition, this framework will significantly increase the capability of robotic industries in the analysis, design, and development of autonomous mobile platforms. RISCWare is comprised of three modules. The first module encapsulates the sensors, which gather information about the remote or local environment. The second module defines the platforms, manipulators, and actuation methods. The last module describes the tasks that the robotic platforms will perform such as teleoperation, navigation, obstacle avoidance, manipulation, 3-D reconstruction, and map building. The objective is to design a middleware framework to allow a user to plug in new sensors, tasks or actuation hardware, resulting in a fully functional operational system. Furthermore, the user is able to install and uninstall hardware/software components through system lifetime with ease and modularity. In addition, when hardware devices are plugged into the framework, they are automatically detected by the middleware layer, which loads the appropriate software and avails the device for applications usage. This automatic detection and configuration of devices make it efficient and seamless for end users to add and use new devices and software applications. Several experiments, performed on the RISCbot II mobile robot, are implemented to evaluate the RISCWare framework with respect to applicability and resource utilization.

关键词： 3D shape acquisition   texture reconstruction   Coded Structured Light   De Bruijn pattern  

摘要： Coded Structured Light techniques represent one of the most attractive research areas within the field of optical metrology. The coding procedures are typically based on projecting either a single pattern or a temporal sequence of patterns to provide 3D surface data. In this context, multi-slit or stripe colored patterns may be used with the aim of reducing the number of projected images. However, color imaging sensors require the use of calibration procedures to address crosstalk effects between different channels and to reduce the chromatic aberrations. In this paper, a Coded Structured Light system has been developed by integrating a color stripe projector and a monochrome camera. A discrete coding method, which combines spatial and temporal information, is generated by sequentially projecting and acquiring a small set of fringe patterns. The method allows the concurrent measurement of geometrical and chromatic data by exploiting the benefits of using a monochrome camera. The proposed methodology has been validated by measuring nominal primitive geometries and free-form shapes. The experimental results have been compared with those obtained by using a time-multiplexing gray code strategy.

关键词： context awareness   mobile computing   distributed systems   context prediction  

摘要： Middleware support for advanced pervasive applications includes dealing with heterogeneous systems and dynamic changes of execution environments. If applications are context aware, they are able to detect such changes at runtime and react to them accordingly. Furthermore, they can also proactively adapt to upcoming situations by making accurate assumptions about future contexts. However, the design of reusable middleware support for such future-context-aware applications is still challenging as a supporting prediction system has to be generic, but at the same time has to provide potential for high accuracy and efficiency. This paper proposes a concept for the development of future-context-aware applications on the basis of the novel approach of structured context prediction. As a framework, this approach allows for integrating domain-specific knowledge and facilitates application, combination, and implementation of suitable prediction methods. In addition, specific runtime mechanisms for distribution of knowledge and adaptation of prediction tasks are proposed, which enable useful context predictions even for dynamic applications. The overall development process as well as practical experiments with the prototype framework is illustrated by two use case scenariosdemonstrating that both high accuracy and efficiency of future context predictions are achievable and even ad hoc context predictions can be supported this way. Copyright (c) 2011 John Wiley & Sons, Ltd.

关键词： emulsion   gel   fluid gel   food structure   colloids   emulsification techniques  

摘要： Recent advances in the understanding of colloids has enabled the design of food products that are healthier and tastier, in line with consumer ***, emulsion design and hydrocolloid structuringcan be used to address the issue of fat reduction in foods by allowingthe production of reduced fat products that provide similar sensoryattributes. Additionally, various techniques for encapsulating molecules, such as flavour, nutraceuticals or drugs, arenow being developed. The application of such techniques in foodproducts can improve micronutrient bioavailability by means oftargeted and controlled delivery, increasing the nutritional *** structures can also be designed to enhance consumerexperience, mimic fat or control satiety. Such novel improvements, aswell as their potential translation into commercial food products, are highlightedin this paper, which focuses primarily on the areas of emulsion technologies andhydrocolloids. (c) 2013 Society of Chemical Industry

关键词： superhydrophobic surfaces   tunable adhesion   heterogeneous chemistry   microdroplet transportation  

摘要： Controlling water adhesion is important for super-hydrophobic surfaces in many applications. Compared with numerous researches about the effect of microstructures on the surface adhesion, research relating to the influence of surface chemical composition on the surface adhesion is extremely rare. Herein, a new strategy for preparation of tunable adhesive superhydrophobic surfaces through designing heterogeneous chemical composition (hydrophobic/hydrophilic) on the rough substrate is reported, and the influence of surface chemical composition on the surface adhesion are examined. The surfaces were prepared through self-assembling of mixed thiol (containing both HS(CH2)(9)CH3 and HS(CH2)(11)OH) on the hierarchical structured copper substrates. By simply controlling the concentration of HS(CH2)(11)OH in the modified solution, tunable adhesive superhydrophobic surfaces can be obtained. The adhesive force of the surfaces can be increased from extreme low (about 8 mu N) to very high (about 65 mu N). The following two reasons can be used to explain the tunable effect: one is the number of hydrogen bond for the variation of surface chemical composition;and the other is the variation of contact area between the water droplet and surface because of the capillary effect that results from the combined effect of hydrophilic hydroxyl groups and microstructures on the surface. Noticeably, water droplets with different pH (2-12) have similar contact angles and adhesive forces on the surfaces, indicating that these surfaces are chemical resistant to acid and alkali. Moreover, the as-prepared surfaces were also used as the reaction substrates and applied in the droplet-based microreactor for the detection of vitamin C. This report provides a new method for preparation of superhydrophobic surfaces with tunable adhesion, which could not only help us further understand the principle for the fabrication of tunable adhesive superhydrophobic surfaces, but also potentially be used in many i

关键词： 结构化设计   道路桥梁设计   计算模型   应用原则   使用价值  

摘要： 随着我国经济的飞速发展,交通运输业也获得巨大的发展与进步,作为交通业中重要的道路桥梁设计也得到广泛关注。本文阐述了道路桥梁结构化设计的必要性。对结构化设计的不同计算模型进行分析,探讨了结构化设计的常用解法,论述了道路桥梁设计中的结构化设计应用原则。