基于Zigbee的钻井泵实时监测系统设计

针对目前钻井泵实时监测参数不全面与钻井现场复杂工况,设计了基于Zigbee技术的钻井泵实时监测系统。对系统的功能、特点,硬件、软件设计都进行了介绍。该系统能实现对钻井泵多个关键参数的实时监测,结合Zigbee无线传输技术,非常适用于钻井现场使用。     

基于Zigbee的钻井泵实时监测系统设计

针对目前钻井泵实时监测参数不全面与钻井现场复杂工况,设计了基于Zigbee技术的钻井泵实时监测系统。对系统的功能、特点,硬件、软件设计都进行了介绍。该系统能实现对钻井泵多个关键参数的实时监测,结合Zigbee无线传输技术,非常适用于钻井现场使用。     

一种新型冷链物流监控系统的设计与实现

针对当前物流监控效率低下、环境监测盲点众多、信息数据不够透明等问题,借助环境传感器、云平台、图像传输技术,采用MQTT协议将采集数据上传云平台,通过控制云平台数据流转搭建了一套“云+端”分布式架构的冷链物流远程监控系统,实现对多辆冷链物流车辆环境参数的远程监控。测试结果表明该系统运行稳定,能够实时响应,还可以有效监控冷链物流车的实时情况。     

钻井数据采集传输与辅助决策系统的现状与未来

为进一步提高勘探开发的综合效益,打造数字化钻井,首先要了解钻井数据采集传输与辅助决策系统的国内外现状,并分析透彻目前国内打造数字化钻井存在的问题,然后结合国内三大石油公司现状提出了钻井辅助决策系统未来的发展趋势.最终通过辅助决策系统诊断,与指挥系统平台和现场的工程技术人员进行实时的交流与讨论,达到快速、高效、优质钻井的目的,真正实现综合成本的降低.     

基于ARM的建筑节能温度监测系统设计

为了合理调控建筑物室内的温度,实现建筑节能的目标,设计了一种基于ARM处理器和4G无线数传模块的远程温度监测系统。系统选用DS18B20数字温度传感器实现温度的采集,采用S3C2440作为主控制芯片读取并存储温度数据,通过4G无线数传模块将温度数据传送到Internet网络中。该系统可实现实时、自动的对现场温度数据进行显示和存储,实现了对建筑室内温度的远程实时监测。     

微流量控压钻井技术及其应用

微流量控压钻井技术通过闭环控制系统对钻井液总的流入量和流出量微小波动的实时监测和控制,实现平衡或近平衡钻井。通过对微流量控压钻井技术的原理进行分析,结合工艺对关键设备的结构组成、功能特点和安装方式进行了全面描述,并结合复杂井段不同工况下的实际应用效果,指出该技术对井底压力实时精确监测和良好的控制能力,为该技术在国内的研究和应用提供参考。     

物联网技术在现代水产养殖业的应用

水产养殖环境智能监控系统综合利用了物联网传感技术、智能处理技术及智能控制技术,集数据、图像实时采集、无线传输、智能处理和预测预警信息发布、辅助决策等功能于一体,实现现场及远程系统数据获取、报警控制和设备控制.养殖管理人员可以通过电子计算机或其他客户端实时了解养殖塘内各项参数和启闭设备,在保证质量的基础上大大提高了产量.     

在LabVIEW环境下实现基于C/S模式的远程数据采集系统

本文介绍了基于网络技术的远程数据采集系统,结合现场数据采集工作的实际情况,从C/S模式的网络结构出发,提出了一种LabVIEW环境下的远程数据采集系统的设计,通过远程数据的实时采集来完成现场采集工作。     

钻遇高压含油气水层钻井液技术

罗682井完钻层位沙四段,完钻井深3507米。本文剖析现场钻井施工中出现的复杂情况,阐述了防油气水浸、防塌、堵漏等三方面钻井液技术,这些钻井液技术对完成该异常高压井起到了很大的关键作用。     

1250热连轧数据采集系统的研究与分析

热连轧计算机控制系统涉及设备很多,工艺复杂,自动化程度较高,想要调试和维护好这样高度复杂的系统,如果没有先进的数据采集系统支撑那是非常困难的事情。常用的调试手段都是应用HMI软件或PLC编程软件,其功能和性能均不能满足现场调试和维护的需要。所以基于高速内存网热轧过程数据采集系统应运而生。本系统利用现有生产线上的基础网络设备,仅需要投入较少的资金就可以构建起一个功能强大的分布式的过程数据采集系统,能够在网络的各个节点进行实时监控或者历史数据分析,还可以为远程调试、ERP、MES提供数据支撑和技术手段。     

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.     

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。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.