基于DSP的永磁同步电机建模

永磁同步电机控制系统硬件在环仿真中,真实的控制器与逆变器模型及其永磁同步电机模型连接以完成仿真测试,本文对硬件在环仿真方案中的永磁同步电机模型进行研究,基于DSP建立永磁同步电机模型,并在MATLAB中进行仿真,仿真结果表明,模型运行正常。     

硬件在环仿真系统概述

与传统的ECU仿真方法相比,硬件在环仿真具有高实时性、低成本、灵活性高、可重构性强、仿真精度高等优点。本文介绍了硬件在环仿真基本原理及dSPACE、RT-LAB、NI硬件在环仿真平台,并阐述了硬件在环仿真模型的开发步骤,对硬件在环仿真当前的发展情况进行了简单概述。     

某智能弹药模拟信号源设计

模拟信号源用于仿真某智能弹药工作过程中按不同的时序产生的信号。以此信号源提供激励信号,对某智能弹药电参数测试系统进行校验和调试。首先对不同的信号特征进行了分析,然后根据分析的结果设计了模拟信号源的硬件电路和软件程序,并对硬件电路进行了仿真。结果表明本设计满足某智能弹药测试系统的试验需求。     

矿井主提升机电气控制系统设计

本文基于矿井交流提升机安全可靠运行的工作要求，对矿井交流提升机电控系统进行研究设计，简单介绍了国内矿井提升机的工作原理。详述了提升机电控系统的硬件设计和软件设计。     

基于单片机控制的汽车点火装置的设计思路

大多数汽车价格昂贵的一个原因就是它的电控系统价格较高,文章基于找出一种方法使得汽车电控系统价格降低的目的,提出了一种基于单片机控制的发动机电子控制单元的设计思路.     

汽车发动机电子控制系统实训教学设备研究设计

职业教育的重点是培养满足社会能力需求的专业技术人才,实践是职业教育过程中提升专业技能的有效途径。文章通过对汽车整车发动机电控系统的结构、原理研究分析,对比当今主流汽车发动机电控系统实训教学设备主要功能特点,设计了一种可与汽车整车发动机电控系统直接连接、同时适用于多种车型、功能完备的汽车发动机电控系统实训教学设备,重点分析了硬件电路设计和软件设计过程。希望能够对汽车发动机电控系统实训教学设备的研究有一定的帮助。     

基于单片机控制的汽车点火装置的设计思路

大多数汽车价格昂贵的一个原因就是它的电控系统价格较高，文章基于找出一种方法使得汽车电控系统价格降低的目的，提出了一种基于单片机控制的发动机电子控制单元的设计思路。     

基于MotoTron的整车控制系统半实物仿真平台开发

硬件在环仿真测试是电动汽车控制系统设计中的重要过程,本文提出了一种基于Moto Tron快速开发平台,快速搭建起电动汽车整车控制系统的半实物仿真平台的方案,根据整车控制器的控制需求,利用点火开关、踏板和档位开关等实物与Moto Tron平台相结合,实现验证整车控制策略的功能,具有简便,低成本的优点。     

快速公交与站台门之间无线联动系统设计

快速公交BRT车辆在进站停车和发车时需要与设置在站台上的站台门进行同步的开关门动作,为此设计了一套基于RFID无线射频识别技术的联动系统。该系统主要由RFID单元、PLC控制器单元、DCU门控单元、PSA上位监控单元等组成。经过现场测试,该系统设计能够准确地实现车辆门与站台门的无线联动,并能实时监控和记录各个在线设备的状态。     

基于单片机的小区单元门禁系统的设计

根据住宅小区安全性的要求,提出一种基于单片机的小区单元门禁系统的设计方案。系统能实现密码的输入、清除、显示、修改,并有开锁、报警、通话功能。完成了系统的硬件电路设计和C语言编程,用proteus仿真软件进行了仿真。系统克服了传统机械锁的缺点,具有成本低廉、功能实用的特点。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

Ansätze und Ergebnisse anglo-amerikanischer M&A-Forschung

Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.     

Introduction of New Technology with a Sound Transition of the Input-Output Structure

We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。