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   1219篇
  免费   211篇
  国内免费   11篇
财政金融   43篇
工业经济   72篇
计划管理   364篇
经济学   106篇
综合类   99篇
运输经济   12篇
旅游经济   25篇
贸易经济   638篇
农业经济   14篇
经济概况   68篇
  2024年   1篇
  2023年   19篇
  2022年   19篇
  2021年   29篇
  2020年   64篇
  2019年   49篇
  2018年   56篇
  2017年   53篇
  2016年   43篇
  2015年   62篇
  2014年   147篇
  2013年   160篇
  2012年   138篇
  2011年   124篇
  2010年   86篇
  2009年   51篇
  2008年   80篇
  2007年   70篇
  2006年   52篇
  2005年   40篇
  2004年   32篇
  2003年   22篇
  2002年   19篇
  2001年   12篇
  2000年   3篇
  1999年   2篇
  1997年   1篇
  1996年   2篇
  1992年   1篇
  1991年   1篇
  1989年   2篇
  1987年   1篇
排序方式: 共有1441条查询结果,搜索用时 15 毫秒
1.
目的 探讨新一代与老一代流动人口生活满意度的影响因素,为制定流动人口管理和农民工市民化政策提供参考。方法 文章基于珠三角地区流动人口的问卷调查数据,构建OLS回归模型和分位数回归模型分析两代流动人口生活满意度。结果 (1)住房面积、社会保险、个人收入、对所在城市印象以及城市医疗影响两代流动人口生活满意度,但是在不同生活满意度分位数水平下,影响因素存在差异;(2)在低生活满意度水平下,务工年限、个人收入显著地影响老一代流动人口生活满意度,而住房面积、社会保险及对所在城市的印象显著地影响新老两代流动人口生活满意度;(3)在高生活满意度水平下,社会保险、对所在城市印象显著地影响老一代流动人口生活满意度,而务工年限显著地影响新一代流动人口生活满意度。结论 新一代流动人口的生活满意度高于老一代流动人口,在不同生活满意度分位数水平下,两代流动人口影响因素存在差异。因此,制定流动人口生活满意度政策需要考虑代际差异,还需要考虑不同分位数水平下的差异。  相似文献   
2.
电力企业在移动信息化技术方面也迈出了步伐,开展电力业务现场作业、物资与基建的现场作业、故障抢修等班组作业应用,本文主要讨论移动应用平台的运维和技术管控工作,为移动应用平台的建设和发展提供一种工作思路。  相似文献   
3.
The paper examines the influence of mobile money usage on customer continuance intention (CCI). The study conveniently sampled 507 mobile money users to test the research model using PLS-SEM. Satisfaction, trust and active usage of mobile money were found to influence CCI. Active usage of mobile money was also confirmed as a mediator in the relationship between satisfaction and trust, on customer continuance. The study thus validated a theoretical model of customer continuance intention as it relates to mobile money usage. It has also provided a new perspective on managing customer churn in an emerging market.  相似文献   
4.
针对双站定位涉及的跳频信号多普勒频差估计问题,提出了归一化的频差最大似然估计算法,利用两个定位站接收到的跳频脉冲串信号,构建一个关于基准跳频频率多普勒频差的似然函数,通过网格搜索得到使似然函数最大的多普勒频差估计,既解决了跳频信号在不同跳频频率上多普勒频差不一致的问题,又充分利用在不同频率的脉冲串信号提高了多普勒频差估计精度。通过仿真对算法的性能进行了评估,结果表明,与基于子空间的算法比较,在脉冲数达到240个时,所提算法执行效率提升30%以上。  相似文献   
5.
The authors explored using a mobile application called DevelapMe for 278 business undergraduates in 54 teams to give real-time peer-based feedback during a 5-week group project. Two online surveys, Time 1 (T1) and Time 2 (T2), were administered. Results included finding three promising, new give-feedback scales: positive rating with comments, negative rating with comments, and negative/neutral rating without comments. Relationship conflict and task conflict were the outcomes. Relationship conflict significantly increased from T1 to T2. Only positive rating with comments had a significant relationship to T2 relational conflict and task conflict. Research exposing students to real-time feedback apps will prepare them for future work in teams.  相似文献   
6.
Many hotels have launched their own branded mobile applications to develop relationships with customers. Yet, research examining the benefits of branded hotel apps on brand loyalty is scant. The current research investigates the role of branded hotel apps on brand loyalty through customer engagement and brand trust in the hotel industry, based on uses and gratifications theory. Results identified cognitive and social benefits of the branded hotel apps positively influenced customer engagement and brand trust. Hedonic benefits positively influenced customer engagement and they indirectly influenced brand trust through customer engagement. Both customer engagement and brand trust positively influenced brand loyalty. Moreover, mediation effects of customer engagement and brand trust were identified. Results highlight how branded hotel apps serve as a facilitator of brand loyalty, providing theoretical and managerial implications.  相似文献   
7.
在广义空间调制(GSM)系统中,最大似然(ML)检测可以取得最优的检测性能,然而其计算复杂度随激活天线数的增加急剧增长。针对这一问题,提出了一种基于稀疏重构理论的低复杂度检测算法——正则化正交匹配追踪(ROMP)算法。该算法首先根据信道矩阵和当前残差的内积选取多个候选激活天线索引,接着对候选天线索引按正则化标准进行可靠性验证,剔除错误索引,缩小信号的搜索空间,最后通过求解最小二乘问题估计信号。仿真结果表明,与经典的正交匹配追踪(OMP)算法相比,所提算法以少许复杂度的增加为代价极大提升了检测性能,能够在检测性能与复杂度之间取得更好的折中。  相似文献   
8.
With the rapid development of apparel mobile commerce in the United States, more companies view mobile commerce as a new source of competitive advantage. Despite the importance of apparel mobile website quality and its effect on consumer satisfaction and future purchase stimulus, extant research has paid little attention to these topics. This study proposes a website quality–consumer satisfaction–purchase intention research model based on the self-regulatory process theory. Six dimensions of apparel mobile website quality—website visual appeal, apparel visual appeal, brand trust, website information quality, website response time, and website security—were investigated. In all, 293 eligible responses were collected via an online survey. Multiple regression analysis was utilized to test the proposed relationships. Results reveal that website information quality, website visual appeal, apparel visual appeal, and website security positively affect consumer satisfaction toward apparel mobile commerce websites, while website response time and brand trust show insignificant impacts on consumer satisfaction. With higher satisfaction on an apparel mobile commerce website, consumers are more likely to purchase apparel through the website.  相似文献   
9.
The issue of disruptive operators has recently gained interest among researchers and regulators. From a regulator's perspective, disruptive operators can increase competitive rivalry in markets dominated by a handful of large companies, thereby allowing consumers to obtain more benefits in terms of price and quality. Largely overlooked in this discussion has been the impact that the specific identity, complementary assets of operators, and their strategies have on the marketplace dynamics. In this paper we explore the impact that one such operator – Free Mobile – has had on the French mobile telecommunications market. Drawing on a wide range of secondary sources, our analysis finds that the entry and subsequent growth of Free Mobile has had a complex and multi-faceted impact on the market. Their growth has been at the expense of the other three mobile network operators active in the French market, while their innovative business model, which enables it to compete on the basis of low costs, has been copied by its rivals. The specific characteristics of Free Mobile and of its strategy have contributed to a significantly alteration to how competition occurs in this market. This, in turn, triggers a strong incentive for restructuring, which is actually restrained by regulatory concerns.  相似文献   
10.
Since developing countries are gradually introducing mobile-based tourism education, it is a growing demand to understand the students’ intention to adopt mobile learning. The study used partial least squares-based structural equation modelling to analyse survey data from 176 questionnaires at three tourism education institutes in Bangladesh. The study contributes to the theory of planned behaviour by examining the antecedent impact of innovativeness and moderating effect of self-efficacy. Results confirmed innovativeness as a significant antecedent on the attitude–intention relationship; however, the moderating effect of self-efficacy has not been supported. The study has marketing implications for tourism education institutes and government bodies.  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