首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 250 毫秒
1.
岩土勘测是施工前期进行了一项重要工作,执行这项任务的目的就是能够提供更多的地质勘测所使用的数据和各个岩土工程所使用的参数以备施工、工程设计.倘若这行工作没有得到很好的落实,那么将会对后续的施工产生严重的影响.本文主要探讨了我国岩土工程勘测存在的弊端并从取样和勘测技术两方面提出了改善措施.  相似文献   

2.
郑巍 《活力》2009,(6):52-52
随着遥感影像分辨率的不断提高。高分辨率遥感影像在土地工作中的利用将日益广泛。本文结合实际工作中利用Quik Bird影像进行大比例尺土地利用变更调查的试验,总结了高分辨率遥感影像进行土地利用变更调查的方法及试验的精度分析,并提出目前利用高分辨率遥感影像存在的困难,为今后的使用者提供借鉴。  相似文献   

3.
《企业技术开发》2015,(19):68-69
地质、矿山测量工作中,有时遇到矿区、矿权范围界线跨越分带子午线,分布于分带子午线东、西两侧,又必须进行接图的情况。生产实践中总结出:南方数字化地形地籍成图系统CASS2008软件的"跨带图框纠正法",纠正跨带光栅图,然后矢量化,解决了各种比例尺地形图、地质图等已有资料矢量化的跨带接边问题。  相似文献   

4.
煤质工作是煤田勘测中一个重要的组成部分,只有前期合理有效的煤质检验工作,才能确保煤田勘测工作顺利的进行。本文对煤质工作的重要性进行简要的分析。  相似文献   

5.
郑巍 《活力》2009,(11)
随着遥感影像分辨率的不断提高,高分辨率遥感影像在土地工作中的利用将日益广泛.本文结合实际工作中利用Quik Bird影像进行大比例尺土地利用变更调查的试验,总结了高分辨率遥感影像进行土地利用变更调查的方法及试验的精度分析,并提出目前利用高分辨率遥感影像存在的困难,为今后的使用者提供借鉴.  相似文献   

6.
《企业技术开发》2015,(22):36-39
文章对落炉穹窿构造及周围出露的煤系地层特征进行了系统的研究,指出了该穹窿构造特征对煤系地层等软弱地层的影响,为落炉穹窿构造周围矿山生产指出了方向,同时为下一步在该穹窿构造下展开地质工作、圈定找矿靶区指明了方向。  相似文献   

7.
线性工程测绘一般指狭长地带的工程测量,常见于铁路、公路、运河、水利等工程定线和初步设计。进行大比例尺地形测绘和平面控制网的建立,需要考虑工程区域内长度投影变形值,研究确定合理的工程坐标系统为勘测、设计、施工提供测量数学基础和技术保障。文章通过对投影变形产生的原因、投影带和投影面的选择及抵偿投影坐标计算等方面进行分析研究,并结合具体的工程案例进行阐述,对实际工作具有一定的指导意义。  相似文献   

8.
范建 《科技与企业》2013,(18):220-221
本文主要从工程地质勘察的目的、勘测任务的影响因素进行概括,并对工程地质勘察的流程进行阐述,主要包括勘察前期的准备工作、各个阶段勘察的内容,以及工程地质勘察报告的分析。通过文章论述可以为地质勘察工作的实施起到一定的指导作用。  相似文献   

9.
《价值工程》2018,(7):164-165
本文主要针对无人机低空遥感技术发展现状及行业应用进行综合性论述。其中,无人机低空遥感的主要特点从航摄效率、影像分辨率、数据处理、主要缺点等4个方面进行论述,遥感影像处理主要流程包括影像预处理与影像重叠度计算、空中三角测量、影像生产与制作、质量检查。行业具体应用方面,则以大比例尺地形图测绘、国土资源监测、应急监测等方面进行论述。文章最后对无人机遥感应用进行展望并给出行业发展的一些建议。  相似文献   

10.
宗静 《价值工程》2010,29(31):111-111
本文对岩土勘测进行了简要介绍,得出想要做好建筑工程岩土勘测工作,就必须加强对勘测工作各个环节的质量控制,并通过完善规章制度和加强现场管理的方式最终达到提高勘测报告质量的目的。  相似文献   

11.
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.  相似文献   

12.
En este estudio se analiza el incumplimiento del salario mínimo durante el periodo 2003–2012 en diez países de Europa central y oriental con salario mínimo obligatorio nacional. A partir de los datos de EU‐SILC y la metodología propuesta por Bhorat, Kanbur y Mayet (2013), se cuantifica la incidencia y magnitud del incumplimiento. Se realizan análisis de regresión sobre determinantes individuales, laborales y macroeconómicos. Aunque la incidencia permanece relativamente baja, los trabajadores a los que se dirigen las políticas de salario mínimo parecen los más expuestos a su incumplimiento. Con el tiempo, una mayor incidencia se asocia a una razón más alta entre salario mínimo y salario medio.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
While a growing body of research analyses the functional mechanisms of the cultural or creative economy, there has been little attention devoted to understanding how local governments translate this work into policy. Moreover, research in this vein focuses predominately on Richard Florida's creative class thesis rather than considering the wider body of work that may influence policy. This article seeks to develop a deeper understanding of how municipalities conceptualize and plan for the cultural economy through the lens of two cities held up as model ‘creative cities’ — Austin, Texas and Toronto, Ontario. The work pays particular attention to how the cities adopt and adapt leading theories, strategies and discourses of the cultural economy. While policy documents indicate that the cities embrace the creative city model, in practice agencies tend to adapt conventional economic development strategies for cultural economy activity and appropriate the language of the creative city for multiple purposes.  相似文献   

19.
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.  相似文献   

20.
Despite the establishment of high-tech multinational enterprises (MNEs) in Ireland since the late 1950s, the country did not succeed in closing the technological gap with most of its EU counterparts. The weak National System of Innovation (NSI), and in particular low business and government R&D levels, combined with a lack of research and technology linkages between MNEs and indigenous firms, explain these poor results. However, the Shannon region in the West of the country presents some specific institutional characteristics that could theoretically make the region a strong technological enclave. The various actors in the region - i.e. the administrative, financial, political and research institutions, as well as the business organizations - have indeed infused a new type of economic development. After a brief review of the available concepts and models articulated around these actors and their interrelationships, the paper analyses whether the Shannon region, taken as an illustrative example, mirrors a specific economic and technological localized setting. The study is based on a survey of indigenous and foreign firms.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号