全文获取类型
收费全文 | 843篇 |
免费 | 27篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 5篇 |
工业经济 | 147篇 |
计划管理 | 419篇 |
经济学 | 77篇 |
综合类 | 62篇 |
运输经济 | 29篇 |
旅游经济 | 1篇 |
贸易经济 | 40篇 |
农业经济 | 9篇 |
经济概况 | 82篇 |
出版年
2025年 | 4篇 |
2024年 | 9篇 |
2023年 | 7篇 |
2022年 | 11篇 |
2021年 | 16篇 |
2020年 | 15篇 |
2019年 | 20篇 |
2018年 | 14篇 |
2017年 | 17篇 |
2016年 | 10篇 |
2015年 | 25篇 |
2014年 | 82篇 |
2013年 | 72篇 |
2012年 | 103篇 |
2011年 | 93篇 |
2010年 | 101篇 |
2009年 | 62篇 |
2008年 | 40篇 |
2007年 | 41篇 |
2006年 | 34篇 |
2005年 | 29篇 |
2004年 | 20篇 |
2003年 | 10篇 |
2002年 | 7篇 |
2001年 | 7篇 |
2000年 | 5篇 |
1999年 | 4篇 |
1997年 | 7篇 |
1996年 | 3篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1992年 | 1篇 |
排序方式: 共有871条查询结果,搜索用时 0 毫秒
1.
文章阐述了基层电力生产企业建设企业安全文化的重要性,并从过程教育、责任制、措施标准化、应怠处置等方面对其进行了探讨。 相似文献
2.
《Journal of Comparative Economics》2022,50(3):652-667
We build a model that puts together crony capitalism, the hierarchy of the Chinese communist party-state, and the decision-making process inside the Party Center. We show that inefficient economic institutions create local corruption that raises realized productivity, while generating rents that flow along the party-state hierarchy up to the provincial level, threatening the Center’s control in potential crises. Although both stronger crisis control and higher economic performance help the Center’s goal to stay in power, we show that given a general fat-tailed risk of crisis, the Center will maximize crisis control at the expense of the economy when choosing its tolerance of local corruption. Power structure and corruption within the Center and reciprocal accountability between central and provincial leaders are also analyzed. Our analysis suggests conditions under which China’s communist regime will or will not deal with the existential threat presented by corruption. 相似文献
3.
随着市场经济的迅速发展,我国的电力企业市场也在突飞猛进地发展,并对于企业效益的提升起着至关重要的作用。与此同时,也存在着相应问题,需要合理运用良好管理方法,做好企业的资金管理与控制,以此来迎合这新时代背景下竞争激烈的电力市场,有效实现资金内部控制,减少资金使用的随意性。因此,加强资金管控已成为许多企业平稳、顺利转型的关健。基于此,就运用什么方法,如何运用这些方法进行细致讲解,提出相关的方法策略及改善建议。 相似文献
4.
低压供电线路电压损耗的简便校验 总被引:1,自引:0,他引:1
为了确保低压供电线路的供电质量,本文就低压配电线路未端,包括地埋、架空户内干线、支线的电压校验问题,提供简单易行的估算方法,对低压供电线路电压质量的校验通过简单四则运算,判别电压质量是否符合要求. 相似文献
5.
徐宝华 《安徽工业大学学报(社会科学版)》2007,24(2):20-22
从不同的角度,触电人身损害赔偿案件有不同分类。不同类型的案件,法律适用原则不同。审理触电人身损害赔偿案件应认真梳理案件的法律关系,采用正确的侵权归责原则,公正、合法地追究当事人的责任。 相似文献
6.
Reinhard Sellmair Tom Schelo 《International Journal of Sustainable Transportation》2019,13(7):479-496
Replacing conventional vehicle taxis with electric vehicles would be an efficient measure to reduce greenhouse gas emissions. Due to the limited range and long charging times of current battery electric vehicles, it is of utmost importance to provide sufficient charging facilities. This article analyses the impact of the placement and charging power of charging stations on potential mileage and revenue of electric taxis on the example of Singapore. Therefore, we developed an agent-based electric taxi simulation model to investigate electric taxis’ driving profiles with respect to different vehicle types and charging infrastructure designs. This model is also capable of simulating conventional taxi driving profiles. The validation of these simulation results with real taxi data showed that the model is reproducing taxi driving profiles with high accuracy in great detail. We found out that electric taxis could reach the same mileage and revenue as conventional taxis if charging with a power of 160?kW is possible. Furthermore, we discovered that waiting times for available charging stations have a stronger effect on revenue than the length of detours to reach charging stations. Based on these findings, we concluded that it is more important to reduce waiting times by placing sufficient numbers of charging stations at each location before expanding the charging network by installing small numbers of charging stations at many locations. 相似文献
7.
ABSTRACTSignificant interest exists in the potential for electric vehicles (EVs) to be a source of greenhouse gas (GHG) abatement. In order to establish the extent to which EVs will deliver abatement, however, a realistic understanding of the electricity and transport sector GHG emissions impacts arising from different approaches to integrating EVs into the power system is required. A key issue in this regard is the extent to which GHG emissions are a function of where and when EV charging will be enabled (or disabled) by the provision of recharging infrastructure and implementation of charging management strategies by the electricity industry. This article presents an investigation of the GHG emissions arising from electricity and gasoline consumption by plug-in hybrid EVs under a range of standard EV-power system integration scenarios. An assessment framework is presented, and GHG emissions from EV use are assessed for the New South Wales (NSW) and South Australian (SA) pools of the Australian National Electricity Market (NEM) using retrospective electricity system generation data for 2011. Results highlight that there is a range of possible outcomes depending on the integration scenario and emissions accounting approach used. This range illustrates value of a temporally explicit assessment approach in capturing the temporal alignment of electricity sector emission intensity and EV charging. Results also show the importance of a clean electricity generation mix in order for EVs to provide a GHG abatement benefit beyond what would be achieved by a hybrid (but non-plug-in) vehicle. The extent to which overnight charging in NSW is observed to produce higher emissions relative to unmanaged charging also illustrates a possible trade-off between GHG emissions and benefits for electricity industry from EV charging at times of low demand. 相似文献
8.
朱星华 《全球科技经济瞭望》2014,(6):13-17
纽约州将电动汽车产业发展作为打造创新经济的先行产业,自2011年以来,推出了一系列系统性的政策举措,包括加强与加快可再生能源特别是太阳能的发展,资助先进储能技术,支持建设纳米级锂硫电池材料制造中心,启动"充电纽约"、"卡车券计划"和纽约绿色银行计划等,使纽约州的电动汽车产业发展和推广在美国处于领先水平。总结纽约州支持发展电动汽车的经验,得出4点启示:一是顶层设计,系统筹划,善于利用与开发本地优势;二是政府组织设立示范项目,引导企业参与投入;三是普适与专项激励政策并举;四是发展目标法律化与阶段化相结合。 相似文献
9.
10.
能源的日益紧张,要求在日常的生活中要应用节能技术,高层楼宇是人们日常生活工作的主要场所,如何应用节能技术降低高层楼宇资源消耗,更高效率地利用高层楼宇的内部资源,是现阶段高层楼宇节能技术深入研究的重要领域。本文以高层楼宇建筑电气节能设计的原则以及目前高层电气节能技术的现状为阐述点,探讨了高层楼宇电气节能技术的具体应用。 相似文献