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   7991篇
  免费   284篇
  国内免费   135篇
财政金融   546篇
工业经济   364篇
计划管理   1522篇
经济学   1330篇
综合类   1438篇
运输经济   27篇
旅游经济   74篇
贸易经济   936篇
农业经济   1104篇
经济概况   1069篇
  2024年   18篇
  2023年   84篇
  2022年   116篇
  2021年   164篇
  2020年   222篇
  2019年   136篇
  2018年   107篇
  2017年   142篇
  2016年   153篇
  2015年   191篇
  2014年   519篇
  2013年   464篇
  2012年   651篇
  2011年   857篇
  2010年   689篇
  2009年   523篇
  2008年   637篇
  2007年   639篇
  2006年   597篇
  2005年   414篇
  2004年   284篇
  2003年   248篇
  2002年   154篇
  2001年   141篇
  2000年   93篇
  1999年   50篇
  1998年   26篇
  1997年   21篇
  1996年   15篇
  1995年   7篇
  1994年   7篇
  1993年   12篇
  1992年   8篇
  1991年   9篇
  1990年   1篇
  1989年   1篇
  1988年   4篇
  1987年   1篇
  1984年   1篇
  1983年   3篇
  1981年   1篇
排序方式: 共有8410条查询结果,搜索用时 31 毫秒
31.
本文主要对中频静止晶闸管逆变电源的逆变部分的运行特点进分析,从原理方面介绍了逆变晶闸管触发、保护的原则。  相似文献   
32.
When is a sequence of gambles, which is initially rejected eventually accepted? The eventual acceptance is defined as a pair property between the utility function and the sequences of gambles. A sequence of gambles is accepted when the gambles follow a large deviation principle and the utility function is non-satiated and bounded from below in a certain way. The number of gambles required for acceptance is computed.  相似文献   
33.
宋代妇女奁产权的探讨   总被引:1,自引:0,他引:1  
奁产,作为女子出嫁时娘家陪嫁的财产,在普遍受到妇女自身重视的同时,国家也制定了相应的法律条文来保障妇女对自己奁产的所有权。宋代是中国古代经济的一个重要发展阶段,经济的繁荣成为社会文明的基础,妇女也具备一定的权利主体资格,享有一定的法律地位。该文主要从宋代的法律文献入手,着重分析宋代妇女的奁产权及其不完整性,以探讨宋代妇女的经济权利及地位。  相似文献   
34.
构建农村和谐社会,应当树立正确的农民增收观,促进农民持续快速增收,缩小城乡差别;加快农地产权制度改革,解决农地矛盾和纠纷;加快农村基层组织制度和县乡行政改革,解决农村干群矛盾;加快农村教育发展,改进农村教育质量,提高农民素质;加大再造秀美山川工程监管力度,消除工作中存在的不实、不公等因素;加快农村社会保障制度建设,消除农民的后顾之忧.  相似文献   
35.
会计目标一直是西方会计界重点关注和研究的问题,近年来,我国会计理论界和实务界也对其投以越来越多的关注。本文试图从企业产权理论和制度变迁的角度,以利益相关者权益保护为主线研究会计目标,理清从受托责任观到决策有用观演进的必然性和合理性,并在分析英美、法德模式会计目标的差异后,结合当前我国会计准则国际趋同的背景,提出我国应确立以利益相关者权益保护为中心、以企业特征为导向、针对不同环境分别选择受托责任或决策有用为核心内容的会计目标构建思想。  相似文献   
36.
文章详细介绍了青藏铁路施工对环境保护的影响,指出了强化青藏铁路环境保护工作的意义,提出了青藏铁路环境保护工作的主要内容和应当采取的措施,阐述了将青藏铁路真正建成21世纪的世界屋脊的环保型铁路的实施要点。  相似文献   
37.
Chi-Yo  Joseph Z.  Gwo-Hshiung   《Technovation》2007,27(12):744-765
Since the year 2000, silicon intellectual property (SIP), which can minimize the gap in ‘design productivity’ that exists with systems-on-chip (SOC), has become one of the most important factors in the development of integrated circuit (IC) products in the SOC era. Although SIP is very important for IC industry development, complicated business, technical as well as legal issues inside SIP transactions have hindered successful transactions and the integration of SIPs into SOCs. Thus, web-based SIP e-Commerce mechanisms, called SIP Malls, have emerged, aiming to resolve complex SIP issues. To maintain its leading position and competitiveness in the World's IC industry, as well as the value added by SOC products in Taiwanese IC firms, the Taiwanese government has developed SIP Malls, using innovation policy tools. However, the Taiwanese SIP Mall industry remains immature. No existing Taiwanese SIP Malls generate a profit or account for a significant share of worldwide SIP transactions. This research will develop an analytical framework for defining an innovation policy portfolio that aims to develop Taiwan's SIP Mall industry, so that it will enhance the value added of SIP Malls and, thus, the nation's competitiveness in the SIP and IC industries, something which already has become one of the Taiwanese government's major concerns. The industry innovation requirements (IIRs) are summarized using the Delphi method. Meanwhile, the major IIRs identified by Decision Making Trial and Evaluation Laboratory (DEMATEL) are introduced. After the IIRs are derived, the relationships between the IIRs and innovation policy tools are derived by Grey relational analysis (GRA). Then, the innovation policy tools are clustered, based upon the Grey grades derived by GRA. Finally, reconfigured innovation policy portfolios are presented for the Taiwanese government's policy definition. The results demonstrate that developing an innovative policy portfolio that includes scientific, technical, educational, public enterprise, information, legal and regulatory, financial, and taxation policy tools will be the most necessary step towards developing Taiwan's SIP Mall industry.  相似文献   
38.
江西大型企业资本运作模式的现状及其改进对策研究   总被引:1,自引:0,他引:1  
资本运作是一种有效配置资源、实现企业资本增殖的活动,其核心是产权制度创新。本文对江西大型企业资本运作模式的现状进行了分析,进而提出了一系列的合理的改进对策,以期提高起运作绩效。  相似文献   
39.
李政 《物流科技》2006,29(4):94-95
我国传统仓储物业建筑形式单一,技术落后,管理社会化、科学化程度低。然而现代物流技术正在飞速崛起,对于物资的快速流通以及规模化经营和科学的管理都有很高的要求。我国的仓储物业在这样的形势下要适应现代物流的发展,改善建筑形式,实现科学高效的管理。  相似文献   
40.
Abstract.  This paper explores the debates surrounding whether or not we have now moved into a new knowledge economy and/or knowledge society and if so whether this shift is as significant and as far reaching as the industrial revolution. In this possible transformation the place of information communications technologies has been crucial. Debate has occurred across both economics and sociology with differing emphases as is shown in the ranges of definitions that we review in the paper. One consistent factor is the lack of clarity and consistency between them both within and across the disciplines. In order to explore the issues that the debates raises in a more grounded way, the paper explores them in relation to intellectual property (IP) and the intellectual commons in the process of innovation, growth and economic development. The paper is developed through an analysis first of the industrial revolution and the role within this of uncertainty, technologies, complementarities and elective affinities and the way IP was protected and controlled through patents, secrecy, being first to the market and copyright. The second part of the paper examines definitions of the knowledge economy and society and the role within these of information communication technologies in order to explore whether the ways that IP is protected and controlled have changed. In the debate about the 'knowledge economy and society' the role of innovation via human capital with a greater reliance on intellectual capabilities has been emphasized. The role of IP thus remains central but is now challenged by the rise of new forms of communication, which make its protection harder and move much of the concern with respect to regulation to a global rather than national and local level.  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