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   953篇
  免费   48篇
  国内免费   6篇
财政金融   21篇
工业经济   80篇
计划管理   484篇
经济学   61篇
综合类   95篇
运输经济   52篇
旅游经济   18篇
贸易经济   104篇
农业经济   27篇
经济概况   65篇
  2024年   1篇
  2023年   7篇
  2022年   13篇
  2021年   20篇
  2020年   19篇
  2019年   11篇
  2018年   21篇
  2017年   16篇
  2016年   19篇
  2015年   50篇
  2014年   102篇
  2013年   81篇
  2012年   105篇
  2011年   145篇
  2010年   83篇
  2009年   49篇
  2008年   57篇
  2007年   31篇
  2006年   33篇
  2005年   37篇
  2004年   28篇
  2003年   20篇
  2002年   15篇
  2001年   12篇
  2000年   10篇
  1999年   6篇
  1998年   2篇
  1997年   1篇
  1996年   1篇
  1995年   3篇
  1994年   1篇
  1993年   1篇
  1991年   3篇
  1990年   2篇
  1989年   1篇
  1982年   1篇
排序方式: 共有1007条查询结果,搜索用时 16 毫秒
61.
刘剑  田巍  张杨  陶波  王宏  刘云云 《价值工程》2014,33(33):52-53
本文论述了华北油田冀中电网输电线路存在的老化、线路下方违章建筑物、树木顶线、杆塔缺土、施工车辆、挖掘机、吊车误碰导线跳闸等情况,并提出了应对措施。  相似文献   
62.
MNCs are expected to operate in a sustainable fashion. Implementation of sustainability requires the ability to acknowledge external (sustainability-related) knowledge, and to apply it in intra-company activities such as purchasing. We focus on absorptive capacities as potential drivers of sustainability, and investigate the effect that a purchasing function’s capacity to absorb and process knowledge has on social and environmental sustainability practices, and subsequently on economic performance in purchasing. We compare MNCs and non-MNCs using a structural equation model of a large set of survey data from four European countries and find that only realized absorptive capacities impact sustainability practices in purchasing and this impact is smaller in MNCs than in other companies. We suggest that companies respond to the demand for sustainability by strengthening their implementation capabilities: the potential to acquire and transform knowledge within a purchasing function is less relevant, and what matters is its application.  相似文献   
63.
统一战线有广义和狭义之分,新时期内地统一战线的核心工作是组织和开展党派监督,这是统一战线理论假设运用于当代中国而形成的必然逻辑推论。要使这一核心工作得以落实,一些程序化的操作建议可供参考。  相似文献   
64.
This research analyses the commitment to and use of ‘balanced scorecards’ by retailers in generating sustainable profitability, whilst contributing to socio-economic development in South Africa. An international literature review of scorecard frameworks, plans and reports by major retail companies and semi-structured dialogic interviews with a purposive sample of retail business stakeholders and government officials formed the methodology. By contrasting the literature and empirical insights, a summary of findings was generated, which conclude that most retailer scorecards (formal or informal) seek to balance financial with ‘cause-related marketing’ targets, but implementation differs according to factors such as company size, developmental maturity and managerial competence. Furthermore, collaboration between retailers and state institutions in scorecard management is not a reality, as has been achieved in other industries. It is therefore recommended that a Retail Charter scorecard framework be considered, to promote public/private-sector knowledge-sharing and socio-economic development.  相似文献   
65.
宋秀清 《价值工程》2012,31(34):90-91
本文以合福客专童游隧道为背景,介绍了隧道光爆参数的选择和影响因素,结合实践经验,给出了中硬岩隧道Ⅲ级围岩光面爆破的主要参数值。  相似文献   
66.
Previous studies already established the idea of a partnership in which HR professionals and line managers share an organisation’s HRM responsibility. Yet, this relationship is often plagued by conflicts and other obstacles. As such, a perceptual discrepancy is likely to exist between both parties on the degree of HR devolution, which may eventually lead to bad performance. Using survey data, we empirically analyse which factors may explain a perceptual discrepancy between HR professionals and line managers on the latter group’s role in HRM. Results show that the HR-line discrepancy on the degree of HR devolution is rooted in differences in perception on several other factors, including organisational support, (personnel) red tape, the line’s individual capacity and age. Overall, though, it is a matter of understanding both HR’s expectations and the line’s experiences in all aspects of their partnership.  相似文献   
67.
The assessment of methodologies to prioritise the construction of new high-speed rail (HSR) corridors has recently become a key issue for transport planners in countries like the U.S., where HSR does not exist. In a climate of financial instability since the onset of the global crisis of 2007–2008, support for new projects is being eroded by serious concerns over the extremely steep costs of high-speed rail, and there is a need for the scientific clarification of the procedure for prioritizing construction.In 2009 a new ranking methodology was developed and applied to 30,000 city pairs in the U.S. to determine their suitability for high-speed rail investment. The existing literature on ranking tools for prioritising HSR corridors is practically non-existent, and, as none of these U.S. lines has been built or put into in operation, this methodology has not been validated. The main aim of this paper is to contribute to these ranking models and highlight their importance in the HSR planning process. The preliminary ranking tool described in this work has been validated using data from the current HSR Spanish network. The results confirm the consistency of the model as a first approach to ranking pairs, mainly for the top O–D relations; however the model has some drawbacks chiefly due to the type of variables used, and their assigned weightings. Finally, some specific improvements are proposed for this ranking approach in order to provide policymakers with a useful tool when planning the construction of new HSR networks.  相似文献   
68.
This paper proposes a monitoring framework to be used during the planning stage for a sports mega-event. The research identifies a lack of monitoring and evaluation studies during the development stage for sports mega-events. Importantly, it notes the absence of research which evaluates an event systematically from the outset of the process and from the perspectives of host residents and event planners. The framework was developed on the basis of the philosophical approach of pragmatism; it focused on a sustainable development perspective, and it was applied to a case study of the Kaohsiung 2009 World Games. A survey of the views of 606 host residents about the potential impacts of the event revealed that the respondents tended to show higher levels of agreement on the host benefits. The results of 38 interviews with various stakeholders indicated big gaps in both the city's long-term development aspirations and the Games themselves and also in the event strategies adopted. Using this information, key sustainability issues can be identified and monitored during the event planning stage so that the desirable outcomes of events can be enhanced and then sustained in the longer term.  相似文献   
69.
张晓雅 《价值工程》2012,31(13):76-78
轨道精调是无砟轨道施工中最关键的一道工序,它对轨道的线型最终位置能否达到设计及验标的要求起着决定性的作用。本文根据广珠城际客运专线无缝线路轨道静态调整施工作业,对采用轨检小车进行轨道静态精调作业的施工组织、设备配置运用和技术方案进行了总结和归纳,形成了CPIII的复测与平差、施工人员系统培训、精调作业、复测与二次精调的基本作业流程。  相似文献   
70.
This paper has been written in response to the Viewpoint contribution by the author Button (2012) entitled: “Is there any economic justification for high-speed railways in the United States?”. In this article, the Spanish HSR high-speed rail network is used as an argument against certain HSR investments. Several of the data presented by the author are misleading and some of the information given in connection with Spain is incomplete. As the Journal of Transport Geography is widely read by policymakers and the scientific community, Button’s misrepresentation could cause serious damage. We therefore set out to clarify the data used by Kenneth Button and to explore some points in greater detail, although in no case eschewing criticism of Spain. Although excessive Spanish investment in public infrastructure over the last twenty years has probably had a negative impact on the real estate bubble, investments in HSR infrastructure in Spain have specifically been accompanied by two particular facts that need to be distinguished from other countries’ experience. These facts cannot be overlooked and will be discussed in this paper. They relate firstly to the total amount of European funds used in HSR construction and secondly to the technological and scientific innovations developed in Spain linked to the HSR market.  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