首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   146篇
  免费   4篇
  2016年   1篇
  2015年   3篇
  2014年   3篇
  2013年   11篇
  2012年   3篇
  2011年   13篇
  2010年   4篇
  2009年   11篇
  2008年   3篇
  2007年   9篇
  2006年   4篇
  2005年   4篇
  2004年   2篇
  2003年   2篇
  2002年   1篇
  2001年   1篇
  2000年   1篇
  1999年   3篇
  1998年   6篇
  1997年   1篇
  1996年   6篇
  1995年   4篇
  1994年   3篇
  1993年   6篇
  1992年   1篇
  1991年   6篇
  1990年   2篇
  1989年   2篇
  1988年   7篇
  1987年   4篇
  1986年   1篇
  1985年   1篇
  1984年   5篇
  1982年   2篇
  1980年   4篇
  1978年   2篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
  1970年   1篇
排序方式: 共有150条查询结果,搜索用时 31 毫秒
61.
Migration to non-metropolitan areas of high environmental amenity and low population is a lifestyle choice made by a small percentage of people on or about the age of retirement from the workforce Although the proportion of older people involved is low, their numbers are significant to host towns. An aspect of retirement migration which has received little attention by researchers in Australia is the extent to which such moves realise hoped for benefits for the migrants. This paper reports results of interviews undertaken in 1986 with 146 people who had migrated, on or about retirement, to the New South Wales north coast town of Port Macquarie. Several indicators of life and place satisfaction were used They all showed high absolute and relative levels of satisfaction. Although there was tittle dissatisfaction with the results of moves, search behaviour undertaken prior to moving and a number of personal characteristics of migrants, are analysed to explain some variance in satisfaction levels.  相似文献   
62.
63.
64.
The general trends of the inelastic behaviour of plan-asymmetric structures have been studied. Systems with structural elements in both orthogonal directions and bi-axial eccentricity were subjected to bi-directional excitation. Test examples include idealised single-storey and multi-storey models, and a three-storey building, for which test results are available. The response in terms of displacements was determined by nonlinear dynamic analyses. The main findings, limited to fairly regular and simple investigated buildings, are: (a) The amplification of displacements determined by elastic dynamic analysis can be used as a rough, and in the majority of cases conservative estimate in the inelastic range, (b) Any favourable torsional effect on the stiff side, which may arise from elastic analysis, may disappear in the inelastic range. These findings can be utilised in the approximate pushover-based seismic analysis of asymmetric buildings, e.g. in the N2 method. It is proposed that the results obtained by pushover analysis of a 3D structural model be combined with the results of a linear dynamic (spectral) analysis. The former results control the target displacements and the distribution of deformations along the height of the building, whereas the latter results define the torsional amplifications. The proposed approach is partly illustrated and evaluated by test examples.  相似文献   
65.
Abstract

A non-parametric multidimensional regression method is proposed for the prediction of seismic ground motion parameters. The main features which distinguish the method from standard regression procedures are: (1) The relationship between the input and output variables is not selected a priori by a prediction law, (2) an arbitrary number of input variables Can be taken into account, provided that an appropriate data base exists, and (3) the computational procedure is very simple. The results can be easily updated when new information becomes available. The method has been applied for the derivation of attenuation relations by using a combination of databases compiled by other researchers. In the majority of the cases discussed in this paper, the method was used for the prediction of horizontal peak ground acceleration as a function of magnitude and distance. In some cases, ground conditions were also taken into account. Some results on the attenuation relations of peak ground velocity and displacement, as well as Arias intensity, are also presented.  相似文献   
66.
67.
68.
The legacy of the liberation theology in Guatemala is complex. Although it mobilized progressive Catholic forces at times, it has not overcome reactionary and conservative church elements. Most importantly, it has not proven entirely capable of rising above elitism, nor has it moved beyond paternalism toward Maya culture.  相似文献   
69.
While the issue of the role of the private sector in development is very much on the agenda of donors and governments, mainstream Corporate Social Responsibility (CSR) debates continue to neglect questions with regard to the accountability of companies to the communities in which they invest. Liberal notions of CSR place great emphasis on voluntary, partnership and market based approaches to tackling social and environmental problems and managing conflict. While the rise of voluntary standards and codes of conduct in the North and the growing popularity of various forms of 'civil regulation' has improved the responsiveness of corporations to social and environmental issues, there are doubts about their transferability or relevance in many southern settings. This is particularly so when viewed from the perspective of communities pursuing corporate accountability in the absence of donor, NGO or government pressure for company reform. It is in these 'majority world' settings that we encounter the limits of the liberal CSR agenda.
This article therefore explores the different tools that poorer communities have developed in order to construct mechanisms of corporate accountability. Recent work in India is drawn upon to ground the analysis, but reference is made to many other cases in different regions of the world and across a variety of sectors. It is suggested that many state-based, community-based and company-based factors determine the likely success of such initiatives. Power disparities and how to contest them emerge as key, however, and their neglect within mainstream CSR approaches undermines their ability to address issues of corporate accountability in situations characterized by sharp inequities in power. The emphasis here is on the process of promoting corporate accountability, and the relations of power that underpin these, rather than the achievement of more narrowly defined indicators of corporate performance.  相似文献   
70.
Contrasting perspectives of international companies and civil society groups have divided recent debates about corporate responsibility in developing countries. The Corporate Social Responsibility discourse has been promoted by business lobbies, emphasizing the role of international companies in voluntarily contributing towards the solution of pressing social and environmental problems through partnerships with other stakeholders. The notion of corporate accountability has become the rallying point for sustainable development, demanding stricter regulation of corporate behaviour by national governments and the enactment of an international corporate accountability convention. This article assesses the promises and pitfalls of these two competing approaches to industries in South Africa. The article argues that a multi-level approach is necessary to the impact of CSR and corporate accountability initiatives. It concludes that CSR may improve environmental management systems and reduce corporate pollution levels whereas corporate accountability approaches may provide important incentives for companies to improve their environmental performance, assist in the development of national environmental governance frameworks guiding company-community interaction, and facilitate the enforcement of national legislation pertaining to corporate responsibility. However, both approaches fail to address the underlying, globallevel structural causes of conflicts between companies and stakeholders affected by their operations. These conflicts can only be reversed by fundamental changes in the global economy.  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