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   1179篇
  免费   11篇
财政金融   100篇
工业经济   28篇
计划管理   138篇
经济学   182篇
综合类   23篇
运输经济   9篇
旅游经济   19篇
贸易经济   153篇
农业经济   28篇
经济概况   118篇
水利工程   389篇
邮电经济   3篇
  2024年   1篇
  2023年   6篇
  2022年   17篇
  2021年   38篇
  2020年   43篇
  2019年   33篇
  2018年   72篇
  2017年   92篇
  2016年   76篇
  2015年   49篇
  2014年   61篇
  2013年   149篇
  2012年   86篇
  2011年   68篇
  2010年   60篇
  2009年   59篇
  2008年   42篇
  2007年   44篇
  2006年   30篇
  2005年   22篇
  2004年   9篇
  2003年   2篇
  2002年   1篇
  2001年   3篇
  2000年   14篇
  1999年   10篇
  1998年   7篇
  1997年   18篇
  1996年   3篇
  1995年   2篇
  1994年   2篇
  1993年   3篇
  1991年   1篇
  1990年   3篇
  1989年   1篇
  1987年   1篇
  1984年   2篇
  1983年   1篇
  1978年   2篇
  1977年   5篇
  1976年   15篇
  1974年   9篇
  1973年   5篇
  1972年   1篇
  1971年   1篇
  1970年   4篇
  1969年   8篇
  1968年   5篇
  1967年   4篇
排序方式: 共有1190条查询结果,搜索用时 15 毫秒
1.
Journal of Business Ethics - Prior studies suggest that firms headquartered in areas with strong religious social norms have higher ethical standards. In this study, we examine whether the ethical...  相似文献   
2.
Journal of Financial Services Marketing - Purpose: The aim of this paper is to evaluate the success of a value proposition over time, considering two aspects: customer’s perceived value and...  相似文献   
3.
4.
This paper focuses on the development of a theoretical scheme describing the transformation of primary incomes into end consumption and savings in the Russian economy. This scheme is basically a system of interrelated tables reflecting the distribution of primary incomes across the institutional sectors and their further reallocation and use. The scheme makes allowances for the specific features of the Russian economy and existing statistics. In terms of methodology, it is coordinated with the interindustry balance in current buyer prices and, from the theoretical standpoint, describes the connection between Quadrant II and Quadrant III of the balance. Therefore, the proposed system of tables is treated in the paper as Quadrant IV of the interindustry balance. The theoretical scheme is used by the authors as a necessary basis for constructing an empirical model of the relationship between value added and end product, which will be published in the next issue of this journal.  相似文献   
5.
A system for the direct measurement of steam flow in steam lines after a steam generator, which utilizes a special design of pneumometric tubes and a computing unit that accounts for variation in steam pressure, has been developed to improve the quality of water-level regulation in the steam generators of VVéR-1000 power-generating units in the stationary and transitional modes. The advantage of the pneumometric tubes consists in their structural simplicity, high erosion resistance, and absence of irrevocable losses during measurement of steam flow. A similar measurement system is used at foreign NPP. The measurement system in question has been placed in experimental service at the No. 3 unit of the Balakovo NPP, and has demonstrated its worthiness. This measurement system can also be used to determine steam flow in the steam lines of NPP units with VVéR-1000 and VVéR-440 reactors, and PBMK-1000 power-generating units. __________ Translated from élektricheskie Stantsii, No. 3, March 2007, pp. 23–26.  相似文献   
6.
Problems that have arisen during tune-up of the production line for the thermal processing of solid household waste by the method of burning in a vortical fluidized bed (principally, a new technology for Russia), and means of their solution are presented. Investigative studies are cited. __________ Translated from élektricheskie Stantsii, No. 6, pp. 20–26, August, 2006.  相似文献   
7.
The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices, if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission. The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.   相似文献   
8.
Studies conducted on two power-generating units at the Kharanorskaya SAPP relative to the steam-water-oxygen passivation, preservation, and partial cleaning of all boiler-heating surfaces, including the surfaces of the reheater, and passivation of the surfaces of the high-pressure heaters on the steam and water sides by the steam-oxygen method, as well as partial passivation, preservation, and cleaning of turbine blading are presented. __________ Translated from élektricheskie Stantsii, No. 6, pp. 56–64, May, 2006.  相似文献   
9.
10.
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