LED灯应用及展望

LED作为新一代灯具,具有环保高效节能灵活等特点,是未来灯具发展的方向。从LED灯的发光特点、应用、面临的技术问题、LED灯与太阳能的结合几个方面综述了LED灯,指出未来社会的照明应该是LED与太阳能的结合。     

基于NB-IoT技术的LED路灯系统

随着国家对节能环保和绿色经济的要求越来越高,LED在城市路灯和乡村太阳能路灯上正被广泛地应用。如何使LED路灯更节约电能及实现LED路灯的远距离监控至关重要。文章阐述了一种基于NB-IoT技术的LED路灯系统,介绍了LED路灯的硬件系统组成和嵌入式软件架构。该系统采用MCU+NB模块实现了对路灯系统的电压电流采集、状态定时上报、远程开关控制、定时开关路灯、多时段PWM调光等,较好地解决了LED路灯的远程监控问题,在LED路灯产品中得到了广泛的应用。     

一种太阳能电热LED照明雨伞的设计与实现

文章介绍了一种太阳能电热照明雨伞,所述雨伞包括伞面、伞骨、伞杆;以及伞柄,伞面内侧装有电热膜,在伞面外侧固定有以高品质柔性非晶硅材料制成的太阳能光伏电池,在伞柄内嵌入有蓄电池,在特质的空心圆柱型伞柄内置有LED高亮照明灯并将灯壳置于柄底部,柄上设有双开关。通过开关控制电热涂层的通电以及LED灯的开启,从而达到快速烘干和警示照明的效果。所述雨伞采用新型太阳能电池作为驱动能源,节能环保,且操作简单,造价低廉,具有较高的实用价值和市场前景。     

太阳能楼道感应延迟照明灯的设计

基于太阳能和LED的优点,在原有的声光控灯的基础上改进为利用太阳能的LED灯楼道感应灯,具有一定的实用价值。     

以太阳能为能源的智能小车设计

目前汽车所造成的污染是非常大的，以太阳能为动力源的智能小车既能满足消费者的需求，又能够绿色环保、节能减排。在本实验中，将建立太阳能发电、蓄能及负载系统，即太阳能小车。小车可以做到自动采集光线，把光能转换成电能，给蓄电池充电，然后再由蓄电池放电驱动小车。这个项目，将能够为消费者省去大量电池费用，而且还有利环境，节约不可再生能源。     

重庆市卓为公司LED节能灯营销策略分析

在全球能源危机、环保要求不断提高的情况下,寿命长、节能、安全、环保、色彩丰富、微型化的LED产品已被世界公认为一种节能环保的重要途径。基于环保立场以及节约能源诉求,全球各国政府重视LED与节能灯具带来的经济与节能效益,近年来我国LED产业己具备了一定的技术和产业基础,步入了快速发展的阶段,但国内特别是重庆市涪陵区LED企业规模普遍较小,缺乏龙头企业。造成这种情况的原因除了技术相对落后外,LED企业的营销能力普遍较差,这也是制约其发展的主要因素。     

光伏太阳能LED路灯照明系统设计

依据光伏太阳能发电原理设计了一种LED路灯智能控制系统,该系统以STC12C5410AD单片机为控制核心,由电压采集、负载输出检测、驱动显示、过流、短路、感应雷保护、蓄电池管理及键盘输入等电路构成外围电路,采用智能化控制器实现蓄电池的自动充放电、LED路灯自动点亮与熄灭,使光伏太阳能LED路灯照明更加智能化,满足实际应用的需要。     

风光互补型LED路灯的应用分析

随着经济的飞速发展,风光互补LED路灯逐步应用的越来越广泛,风光互补LED路灯使用太阳能和自然风能作为路灯的能源,具有方便、安全、节能的特点,可广泛应用于农村、城市的公路照明。本文简要介绍了LED路灯的构成、优点,路灯的设计等方面,仅供参考。     

浅议多功能节能手提照明灯的设计与开发

生活在城市的人们压力越来越大,大家都更喜欢通过旅游或者野外冒险,野外生存来缓解压力,来亲近自然。针对户外照明功能需求,设计研发了这款多功能手提灯,手提灯的设计结合了节能的太阳能充电的技术、LED聚光信号求救技术、移动电源的技术、MP3的技术于一身。兼具聚光照明和泛光照明功能,可根据需要选择合适的照明方式;可通过太阳能板采用太阳能进行充电,节能环保;并且功能多样,操作简便,有效地解决了常规手提灯功能单一的问题。有了这款多功能手提灯,会给你的旅途带来方便,乐趣。也会给你的生活带来便捷。     

太阳能路灯助力节能减排

近日,山东省枣庄市山亭区西集镇筹集资金140万元实施太阳能路灯亮化工程．在光伏路和枣滕路上安装LED太阳能路灯200套．成为一道节能减排、低碳生活的靓丽风景线。图为9月16日，西集镇光伏路上，师傅们正在安装太阳能路灯。     

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。