质量链管理信息系统重构

分析了质量链管理信息系统重构(Reconfigurability)的必要性,并将其按层次进行划分.提出了基于框架的质量链管理信息系统可重构的开发方法,并研究了框架的组成及其开发过程.随后分析了基于框架的质量链管理关系信息系统的开发与重构过程.不仅对质量链管理信息系统的可重构开发具有指导意义,对于其他的具有重构要求的信息系统开发也有参考价值.     

支持动态配置和抽象编程的软件体系结构描述

随着软件规模的不断增长和对软件安全性要求的提高,软件体系结构、动态配置和较高层次上的程序设计成为软件工程中的研究热点。目前在软件开发过程中用于这三者的技术是不同的,因此软件开发过程中各个阶段的表述方式不统一。该文提出一种面向图形的编程方法来解决该问题,该方法以一种统一的方式实现了基于组件的分布式系统的软件体系结构描述、动态配置和抽象编程。另外还给出一个简单的例子来说明该方法如何支持上述三个阶段中的对软件的描述。     

基于MSP430单片机和神经网络的气体浓度检测仪

研制出基于MSP430F149单片机和BP神经网络的新型便携式气体浓度检测仪。该仪器首次将单片机与人工神经网络相结合用于气体浓度检测，综合了单片机和人工神经网络的优点，克服了传统仪器气体侍感器输出与气体浓度难以线性化等缺点。该仪器具有两种显示模式、声光报警、电压监测、LCD数字显示等功能，具有体积小、灵敏度高、响应时间短、便携、低功耗等特点，能方便实时地检测出现场气体浓度，具有很强的实用性。     

先进制造技术基础研究现状及发展趋势

从全球和国内社会经济发展以及当代科学技术发展角度阐述先进制造技术产生的背景，探讨先进制造技术基础的发展趋势，指出中国在发展先进制造技术基础方面的相对优势，探讨中国发展先进制造技术基础的策略。     

基于RFID技术的分布式密钥安全保护机制

文章主要基于RFID技术，实现分布式密钥安全保护机制。文章将密钥拆分成不同的子密钥存储到不同的标签上，通过扫描多个分布式便携电子标签，来获取密钥，在保证密钥安全的同时实现了个性化的终端解锁方式。由于标签具有便携性，所以终端用户可以将其随身携带。由于该机制不改变硬件结构和协议内容，实现方便，成本低廉，有十分光明的应用前景，未来可扩展到其他物联网应用场景下。     

A novel codification and modified heuristic approaches for optimal reconfiguration of distribution networks considering losses cost and cost benefit from voltage profile improvement

Network reconfiguration is the process of changing the topology of distribution systems by altering the open/closed status of switches. Because there are many candidate-switching combinations in the distribution system, network reconfiguration is a complicated combinatorial, non-differentiable constrained optimization problem. In addition, the radiality constraint typically increases the intricacy of the problem. In this paper, to avoid create infeasible configuration, a new codification is proposed. The proposed codification is computationally efficient and guarantees to generate only feasible radial topologies all times. Also, in this paper, a modified heuristic approach for optimal reconfiguration in radial distribution systems is presented. Additionally, in order to economize voltage profile improvement, a number of new formulas have been represented. The effectiveness of the proposed method is demonstrated on balanced and unbalanced test distribution systems.     

Self-reconfiguration of real-time communication in cyber-physical systems

Today, in domains like automation and robotics systems consist of various sensors and computation nodes. Due to the temporal dependency in quality of measured data, such Cyber-Physical Systems (CPS) commonly have real-time requirements on communication. In addition, these systems shall become more flexible and scalable, e.g., by adding new components to the CPS. This would be most suitable if a CPS could react to the presence of a new component and reconfigure itself to run afterward with the new component integrated to the CPS. This capability is covered by the term Plug-and-Produce. In this paper, we propose a concept to enable Plug-and-Produce within a CPS whose network uses different communication media, e.g., Ethernet and CAN. To enable real-time communication provided by different communication protocols, their different synchronization mechanisms have to be combined to get a common time base within the entire system. For this purpose, we consider Ethernet as well as CAN-based real-time communication protocols and their synchronization mechanisms. The proposed concept for self-reconfiguration aims to be integrated into our three layered software architecture that is presented as well.     

Effects of demand response programs on distribution system operation

This paper discusses an analytical approach illustrating the effects of demand response (DR) programs on network operation efficiency. The contribution of DR is estimated using price elasticity of demand under two mechanisms of dynamic pricing: Critical Peak Pricing (CPP) tariff and Hourly Pricing (HP). Numerical examples are provided to explore the effects of DR on distribution networks’ operation.     

An Information Hiding Algorithm Based on Bitmap Resource of Portable Executable File

An information hiding algorithm is proposed, which hides information by embedding secret data into the palette of bitmap resources of portable executable （PE） files. This algorithm has higher security than some traditional ones because of integrating secret data and bitmap resources together. Through analyzing the principle of bitmap resources parsing in an operating system and the layer of resource data in PE files, a safe and useful solution is presented to solve two problems that bitmap resources are incorrectly analyzed and other resources data are confused in the process of data embedding. The feasibility and effectiveness of the proposed algorithm are confirmed through computer experiments.     

Electric distribution network reconfiguration based on a fuzzy multi-criteria decision making algorithm

Topological reconfiguration is an important tool for the planning and operation of electric power distribution systems. The amount of time that an algorithm spends to obtain an alternative topological status for the system is not a primary concern, as the main goals of distribution operation planning are the reduction of power losses, the enhancement of the voltage profile, and the increase of reliability levels. The utility can use multiple criteria regarding the observation of regulation policies and public awareness to drive the topological reconfiguration. Several researchers are looking for new optimization methods, as the complexity of this combinatorial issue is high in large systems and the classic optimization methods are failing to address the problem reasonably. Therefore, a new fuzzy multi-criteria decision making algorithm for the proper processing of the information sources available at the utilities in the context of distribution network reconfiguration is proposed. The algorithm is evaluated through the use of a proof-of-concept implementation in a set of case studies based on actual distribution systems.