基于元数据的柔性信息系统建模与实现

介绍数据柔性、数据柔性分析等相关概念。通过引入元数据,提出并建立数据柔性的层次模型和柔性数据的访问模型,以解决用户数据结构如何适应转化的关键问题。在数据柔性分析与建模中,提出以元数据为核心的软件设计方法,并将该方法和所建立的数据柔性理论应用于柔性软件信息系统的开发和软件工程实践中。     

Modular architecture of the microfactories for automatic micro-assembly

The construction of a new generation of MEMS which includes micro-assembly steps in the current microfabrication process is a big challenge. It is necessary to develop new production means named micromanufacturing systems in order to perform these new assembly steps. The classical approach called “top-down” which consists in a functional analysis and a definition of the tasks sequences is insufficient for micromanufacturing systems. Indeed, the technical and physical constraints of the microworld (e.g. the adhesion phenomenon) must be taken into account in order to design reliable micromanufacturing systems. A new method of designing micromanufacturing systems is presented in this paper. Our approach combines the general “top-down” approach with a “bottom-up” approach which takes into account technical constraints. The method enables to build a modular architecture for micromanufacturing systems. In order to obtain this modular architecture, we have devised an original identification technique of modules and an association technique of modules. This work has been used to design the controller of an experimental robotic micro-assembly station.     

基于PC的柔性智能测控系统集成平台研究(PC-FISP)

本文将柔性控制、智能控制的思想与传统测控系统结合起来，提出了基于PC的柔性智能测控系统集成平台的基本结构，对开发平台涉及的关键问题进行了讨论，最后给出了一种基于PC的柔性智能测控系统集成平台的模型。     

换热网络的柔性分析

本文基于换热网络的过程模拟,借助于灵敏度系数,给出了一种简单有效的换热网络柔性指数计算的方法。当换网干扰变量变化并引起了控制变量的变化时,如有调节变量,可通过改变调解变量使控制变量返回到设定值。编制了计算机程序,调解曲线可在计算机屏幕上绘出,也可定点检验换网操作的可行性。     

OPTIMAL CONTROL OF THE FLEXI- BLE LINK MANIPULATOR WITH CONTROLLABLE LOCAL DEGREES OF FREEDOM

Although flexible manipulators own many potential advantages, one of their major disadvantages is the deterioration of the end-effector accuracy due to the flexibility. Therefore, how to reduce vibration is a significant problem. Inspired by the observation on the motion behaviors of animals, a new idea of decreasing motion deflection of the flexible manipulator is suggested. The concept of controllable local degrees of freedom is proposed and analyzed. By way of optimizing local motion provided by the controllable local degrees of freedom, the end-effector deflection of the flexible manipulator can be effectively decreased through dynamic coupling. The corresponding optimal method for vibration control of the flexible manipulator is put forward. The kinematic simulation is carried ant on a three-link flexible manipulator The corresponding results verify the feasibility of this method.     

Housing flexibility problem: Review of recent limitations and solutions

The economic, technological, and cultural transformations of our present society influence various scales of our daily lives. In housing, these transformations include changes in the family nucleus and the activities performed in living spaces. Housing flexibility seeks to meet the multiple needs of users by changing their living spaces and functions. This study aims to explore housing flexibility through a review of relevant literature, discussion of valuable findings, and presentation of a contemporary panorama of the theme. Notions of flexibility are integrated to reinterpret the contemporary sense of dwelling. However, the lack of a well-defined concept of flexibility hinders the integration of methods and theories on the subject.     

协调·弹性：新城主干道道路景观设计思考——以武汉市吴家山为例

道路景观设计以协调和弹性为原则,结合新城近远期规划,以实现新城道路弹性景观和协调城市风貌为目标,并从人性化角度分析道路交通安全通行问题。吴家山新城主干道具有距离长、道路绿化控制线宽以及现有的水资源丰富的特点。结合这些道路特点,从道路分段设计、路侧绿带设计、分车绿带设计和水网体系整合的方面来解决潜在交通问题并突显道路景观特色,同时起到净化水体、节约能源的作用。     

西河闸枢纽节制闸闸底板结构复核设计

节制闸是西河闸枢纽的重要组成部分,其主要功能是防洪、蓄水灌溉、航运.目前闸底板存在裂缝及脱空现象,此次设计复核了完建及正常挡水两种工况,并就影响闸底板内力的柔度系数、混凝土弹性模量及边荷载3个问题进行了讨论,为该工程的加固设计提供依据.     

Flexible hybrid WDM/TDM PON architectures using wavelength selective switches

For building an optical access network, we propose some new hybrid WDM/TDM passive optical network (PON) architectures that use wavelength selective switches (WSSs) at the remote node to improve flexibility, data security and power budget. Through simulations we demonstrate that the switching capabilities of a WSS can provide additional gains in terms of wavelength usage by a better statistical multiplexing. Several WSS-based hybrid WDM/TDM PON variants are proposed and assessed. These architectures are also compared with the more commonly used hybrid WDM/TDM PONs consisting of power splitters and/or arrayed wavelength gratings (AWGs), in terms of cost and power budget.