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   1703篇
  免费   27篇
  国内免费   25篇
财政金融   47篇
工业经济   103篇
计划管理   615篇
经济学   264篇
综合类   229篇
运输经济   25篇
旅游经济   9篇
贸易经济   152篇
农业经济   68篇
经济概况   243篇
  2023年   7篇
  2022年   20篇
  2021年   16篇
  2020年   11篇
  2019年   8篇
  2018年   12篇
  2017年   21篇
  2016年   10篇
  2015年   23篇
  2014年   328篇
  2013年   251篇
  2012年   148篇
  2011年   222篇
  2010年   253篇
  2009年   251篇
  2008年   85篇
  2007年   24篇
  2006年   14篇
  2005年   15篇
  2004年   7篇
  2003年   8篇
  2002年   6篇
  2001年   5篇
  2000年   3篇
  1999年   6篇
  1998年   1篇
排序方式: 共有1755条查询结果,搜索用时 31 毫秒
1.
介绍了电镀镍污泥浸出工艺中氨回收的工艺流程、使用原材料和各单元操作,并对各单元操作的技术条件进行了理论分析和实践检验.  相似文献   
2.
政府信任是政府和公众之间基于公共利益的博弈互动关系.符合公共利益的行政价值理念将为政府提供持久的、合法的信任源泉。从官僚制到新公共管理,由于片面注重管理主义工具价值,而忽视公共利益和民主价值,不可避免地面临着政府信任的困境。民主行政作为新公共行政的学术识别系统。坚持和发展公共利益价值取向,实现价值理性和工具理性的统一,符合人类理性与社会公共利益均衡健康发展的内在需要。必然会全新构建和强化公众与政府的互信合作关系。  相似文献   
3.
介绍了燃料乙醇仿真系统软、硬件的结构,着重阐明了它的设计思想和技术特色;标准、适用、灵活是该系统的最重要的特点;实现了全流程的仿真;该系统既可用于培训,还可用于运行指导.  相似文献   
4.
管理层讨论与分析(Management’s Discussion and Analysis,MDA)作为财务报表的有益补充,因其能够有助于增强信息披露的针对性和有效性而越来越受到信息使用者的关注。针对我国MDA信息质量不高的现状和评价体系不尽完善的情况,总结和吸收前人的研究成果,合理界定MDA信息质量特征。在此基础上,充分考虑MDA信息的生成机制和外部评价结果,采用层次分析法,构建适合我国上市公司MDA信息质量评价模型。  相似文献   
5.
The purpose of this paper is to evaluate the board roles that make a board effective in the performance of adopting corporate social responsibility (CSR) practices. This paper examines directors' perceptions of the three main roles: monitoring, service, and strategic, which provide tools for critically understanding how the board adds the value in moving the organization towards more CSR practices. The stakeholder theory is used to distinguish the influence of the three main roles on the adoption of CSR practices. Primary data were collected for this research by conducting structured questionnaires with a sample of 461 directors from Saudi listed companies for study purpose. The results show that an appropriate mix of directors' roles and the development of sound board monitoring and service roles are the most crucial determinants of CSR adoption in Saudi listed companies. As the extant corporate governance and CSR literatures do not provide a clear perspective with contradictory outcomes about board roles in influencing CSR practices, the originality of this research is its contribution by evaluating the directors' perceptions of developing a direct relationship between the board roles and the adoption of CSR practices. Furthermore, the use of the stakeholder theory provides additional insights into identifying the most influential board role factors enhancing stakeholders' expectations of CSR practices.  相似文献   
6.
In the framework of different countries' international comparison, the objective of this paper reflects research topic of investigation--the identification of small countries, revealing features of economic development and business growth in economic history context of small economies classification. The object of investigation focuses on West European and Nordic countries' small economies. The hypothesis of the article is that small states under consideration are developing as the business competitive peripheries areas due to the special Scandinavian capitalist model development characterized by high level of social capital. The statistical data base includes Organization of Economic Cooperation and Development indicators, World Bank parameters and Nordic transnational corporation's annual reports. The paper considers the following research questions: (1) the critical overview of the mainstream academicians opinions concerning different-scaled economies, (2) classification of small states and clarification of different groups of the small-scaled countries role in the world and regional economy through historical context, (3) estimates and variants of small countries' social-economic development in accordance with different parameters, (4) consideration of Nordic European countries coming to the business model of the competitive peripheral social-economic development. The main summing up conclusion is that small economies of Nordic Europe are converting nowadays into the experimental laboratory of the European and world economy due to the specific model of their social-oriented economic and business growth, their geopolitical location between developed European integration complex embracing presumably small-scaled states from one side and large-scaled emerging market economy of Asian continent from the other side.  相似文献   
7.
We present the results of flight simulator experiments (60 runs) with randomly selected airline pilots under realistic operational conditions and discuss them in light of current fuel regulations and potential fuel starvation. The experiments were conducted to assess flight crew performance in handling complex technical malfunctions including decision-making in fourth-generation jet aircraft. Our analysis shows that the current fuel requirements of the European Aviation Safety Agency (EASA) are not sufficient to guarantee the safety target of the Advisory Council for Aviation Research and Innovation in Europe (ACARE), which is less than one accident in 10 million flights. To comply with this safety target, we recommend increasing the Final Reserve Fuel from 30 min to 45 min for jet aircraft. The minimum dispatched fuel upon landing should be at least 1 h.  相似文献   
8.
The knowledge of a product's life cycle is the first step on the search of sustainable development. The life cycle assessment (LCA) is an important method because it allows an environment accounting, where the extraction of natural resources and energy of the nature are considered and the "returns" to the same one and allows in evaluating relative potential the environment impacts generated. The present work had as objective to make an analysis of material and energy flows of the life cycle of three types of packaging for soft drinks: glass bottles of 390 mL, aluminum cans of 350 mL, and bottles of PET of 2,000 mL. The study considered processes since the extraction of raw materials for production of the packaging until the stages of recycling, after the consumption of the soft drink. For the research, an inventory analysis followed the LCA methodology. The main critical points of generation of negative environmental impact during the life cycle of each packaging had been the identified and quantified data in this study. The consumption of natural resources like water and other raw materials and energy, the generation of atmospheric emissions, solid wastes and wastewaters had been the analyzed categories. The results showed that, in accordance with the scenes and defined variables, the most important conclusion was that the bottle of glass presented a less favorable scene to the environment in comparison with other packaging.  相似文献   
9.
为支持小微机构健康、快速发展,中国人民银行长春中心支行按照省级平台一口接入的模式,积极组织小微机构有序开展接入金融信用信息基础数据库工作,但由于小微机构认识程度不够、业务管理不规范、接入费用高等因素,严重影响了接入进度。近期中国人民银行征信中心推出了互联网接入方式,并进行试点运行。以吉林省为例,分析接入模式转换时需要解决的问题,并提出相关政策建议。  相似文献   
10.
岳巍 《价值工程》2014,(20):123-124
由于公路工程施工项目多数属于点多线长、露天和连续作业,涉及的人员、材料、机械设备多,技术含量低且需要经常变换工种的施工环境,使得安全风险大,因此,各施工单位必须对夜间和季节性施工安全措施高度重视,针对夜间施工和未来特殊气候环境影响下施工中可能发生的造成人员伤亡、疾病、财产损失、工作环境破坏等危险及紧急情况,采取有针对性的事先预防措施。  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