D-InSAR技术在矿区沉陷监测中存在的问题及对策分析

D-InSAR技术是近年来发展起来的一项新遥感观测技术.矿区监测应用过程中,D-InSAR表现出了很多优点,如:时时监测、精度高、自动化程度高等.本文结合本人实际工作经验,首先简要介绍了D-InSAR测量技术的基本原理,其次对D-InSAR技术在矿区沉陷监测应用中的一些典型问题进行了总结,最后针对问题给出了相应的解决方案,从而使D-InSAR技术在检测煤矿区地面沉陷应用过程中得到不断完善和发展.     

D-INSAR在矿区土地塌陷范围的监测应用

雷达差分干涉测量技术(D-INSAR)是一种目前较为先进的地表形变监测方法。在监测地表微小形变方面,D-INSAR与常规方法相比有着显而易见的优势。它不仅能以厘米量级甚至更小尺度监测地表形变,且能对大面积测区进行快速的监测,极大的推进了地表形变遥感应用领域的研究。本试验选取一矿区影像数据,应用D-INSAR技术对该影像进行二轨法差分干涉处理,从而得到该矿区的主要形变区域,结果表明了该方法在山区矿山开采沉陷范围监测的可行性并提出几点改进方法。     

基于D-InSAR技术的新疆阿克陶地震形变监测

雷达差分干涉测量技术(Differential interferometric synthetic aperture radar,DInSAR)具有全天候、 大范围和高精度的特点,目前已经在地震形变、 火山运动、 地面沉降、 冰川移动以及山体滑坡监测中广泛地运用.本文主要采用二轨法差分干涉测量方法:利用D-InSAR技术对新疆阿克陶地震造成的地表形变进行了监测,得到了LOS向的同震三维形变场.实验结果表明,阿克陶地震造成了较大的形变,震中附近地块被抬升,而在震中东北方向的地块则发生沉降,同时可以明显的看到地震造成一条北东向的断层.     

煤矿的充填开采及复垦技术探析

开采沉陷是造成矿区环境地质灾害的直接原因,有效控制和减轻地面沉陷程度是避免开采沉陷环境灾害的基本途径.充填采煤法是减少地表下沉效果作好的方法.开采沉陷对土地资源的影响和破坏是难以避免的,所以各个煤矿应该应用根据自己的实际情况和条件合理应用防止和控制开采沉陷技术和土地复垦技术,矿区生态复垦技术等多学科知识,对地表塌陷进行综合治理和开发利用,才能更好地保护地表、矿区的环境、农民的利益.文章针对煤矿开采对矿区环境、地表破坏的影响,以减轻危害程度为目标,提出合理的采矿方法和工艺.     

矿区地表沉陷监测技术发展状况

简要介绍了国内外矿区地表沉陷监测技术的发展历程,重点综述GPS技术与遥感(RS)监测技术在矿区地表沉陷监测中的研究现状,评述地面沉陷监测技术取得的主要研究进展,并指出当前监测技术中存在的主要问题,提出今后研究的主要趋势,文后列出了较详细的有关文献。     

矿区地表形变监测方法与地表沉陷控制对策

为实现对相关区域位置形变量的有效监控、分析,工作人员在结合相应的监测技术对矿区变形监测的过程中,需要考量矿区实际的地表变形测量需求来选取定向化的测量方式,同时在应对矿区地表沉陷的工作中,矿场需要采取充填开采技术以及覆岩离层注浆技术,分析现有矿产开采的实际条件,选取对应的管控技术,有效的防止矿区土层的沉降.本文简要对矿区地表变形监测方法与地表沉降控制对策进行相应的分析和探讨.     

矿区地表形变监测方法与地表沉陷控制对策

为实现对相关区域位置形变量的有效监控、分析,工作人员在结合相应的监测技术对矿区变形监测的过程中,需要考量矿区实际的地表变形测量需求来选取定向化的测量方式,同时在应对矿区地表沉陷的工作中,矿场需要采取充填开采技术以及覆岩离层注浆技术,分析现有矿产开采的实际条件,选取对应的管控技术,有效的防止矿区土层的沉降.本文简要对矿区地表变形监测方法与地表沉降控制对策进行相应的分析和探讨.     

矿区地表形变监测方法与地表沉陷控制对策

为实现对相关区域位置形变量的有效监控、分析,工作人员在结合相应的监测技术对矿区变形监测的过程中,需要考量矿区实际的地表变形测量需求来选取定向化的测量方式,同时在应对矿区地表沉陷的工作中,矿场需要采取充填开采技术以及覆岩离层注浆技术,分析现有矿产开采的实际条件,选取对应的管控技术,有效的防止矿区土层的沉降.本文简要对矿区地表变形监测方法与地表沉降控制对策进行相应的分析和探讨.     

矿区地表形变监测方法与地表沉陷控制对策

为实现对相关区域位置形变量的有效监控、分析,工作人员在结合相应的监测技术对矿区变形监测的过程中,需要考量矿区实际的地表变形测量需求来选取定向化的测量方式,同时在应对矿区地表沉陷的工作中,矿场需要采取充填开采技术以及覆岩离层注浆技术,分析现有矿产开采的实际条件,选取对应的管控技术,有效的防止矿区土层的沉降.本文简要对矿区地表变形监测方法与地表沉降控制对策进行相应的分析和探讨.     

阳煤集团开元煤矿地表沉陷规律研究

论文根据开元煤矿开采区域内煤层赋存和地形特点，对试验开采工作面进行了地表沉陷监测，分析了非充分采动条件下的地表下沉规律。     

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。