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   1251篇
  免费   50篇
  国内免费   7篇
财政金融   87篇
工业经济   94篇
计划管理   376篇
经济学   154篇
综合类   53篇
运输经济   35篇
旅游经济   90篇
贸易经济   283篇
农业经济   75篇
经济概况   61篇
  2024年   4篇
  2023年   23篇
  2022年   18篇
  2021年   41篇
  2020年   49篇
  2019年   49篇
  2018年   44篇
  2017年   57篇
  2016年   50篇
  2015年   55篇
  2014年   108篇
  2013年   149篇
  2012年   74篇
  2011年   110篇
  2010年   82篇
  2009年   81篇
  2008年   77篇
  2007年   62篇
  2006年   38篇
  2005年   28篇
  2004年   21篇
  2003年   18篇
  2002年   13篇
  2001年   11篇
  2000年   6篇
  1999年   9篇
  1998年   7篇
  1997年   3篇
  1996年   5篇
  1995年   5篇
  1994年   4篇
  1993年   3篇
  1992年   1篇
  1988年   1篇
  1986年   1篇
  1985年   1篇
排序方式: 共有1308条查询结果,搜索用时 15 毫秒
21.
This study describes the creation and validation of a multidimensional model which assesses the level of employee satisfaction based on international theoretical models. It utilizes data collected from a sample of 518 public and private company employees during the year 2009 in the city/state of São Paulo, Brazil. In the first stage of the study, 15 independent dimensions were theoretically obtained. In the second stage, five different multiple dimensions were confirmed using structure equation modeling (SEM) technique, thus characterizing general configurations of the organizational climate construct denominated motivation, management philosophy, leadership, people management and nature of work. It is hoped that the model can contribute by enhancing managerial best practices of an organization by attending a major demand for those listed on stock markets, since these companies must periodically provide information on job satisfaction of their employees to maintain or achieve higher levels of corporate governance.  相似文献   
22.
裘丽伟  陈丽 《价值工程》2011,30(9):132-132
中国人自古以来过着修身养性的生活,人们依赖自然,亲和自然。中国传统建筑主张"天人合一"。基于与自然高度协同的中国文化精神,热爱自然、尊重自然,镶嵌在自然中,仿佛是大自然的一个有机组成。这不仅在中国各建筑类型中有明显的反映,在与自然高度协同的观念在园林中更有突出的表现。这种朴素的哲学思想影响着中国古典建筑室内外空间塑造。本文仅从古建筑的空间处理和建筑的造型两个方面分析一下中国传统建筑的可持续发展性。  相似文献   
23.
生别调解下高卷入产品品牌体验对品牌忠诚的影响   总被引:1,自引:0,他引:1  
顾客的品牌体验会影响品牌忠诚,在现有文献中已基本达成其识。本文基于进一步的维度划分,研究了品牌体验五个维度对品牌忠诚两个维度的不同影响,尤其检验了性别差异的调解作用。构建了以品牌体验为自变量,品牌忠诚为因变量,性别为调节变量的结构方程模型,进行实证研究。结果表明:品牌体验各维度对品牌忠诚的影响有不同,并且性别差异的调解效应显著。并提出企业应根据不同的目标顾客群,以不同的体验维度为重点构建品牌忠诚。从一个新的视角为品牌忠诚构建提供了理论指导。  相似文献   
24.
Agisoft photoscan在无人机航空摄影影像数据处理中的应用   总被引:4,自引:0,他引:4  
根据航空摄影测量数据处理的实践与经验,对利用Agisoft photoscan软件进行无人机获取的影像数据进行处理,生成数字地表模型(DSM)和正射影像图(DOM)进行了探讨。  相似文献   
25.
袁惊滔 《价值工程》2011,30(28):34-35
本论文介绍了下引纸复卷机的方案,针对关键部件底辊进行了设计计算,用UG软件完成了整机三维造型,并结合3DSMAX实现了复卷过程的仿真。  相似文献   
26.
Daskin's MEXCLP model [Daskin M. A maximum expected covering location model: formulation, properties, and heuristic solution. Transportation Science 1983;17:48-70] was one of the first efforts to capture the stochastic nature of emergency medical services (EMS) location problems within a mixed-integer formulation. With their subsequent introduction of MALP, ReVelle and Hogan [The maximum availability location problem. Transportation Science 1989;23:192-200] offered two key advances, local vehicle busyness estimates and the α-reliability objective. While these constructs have influenced many subsequent EMS location models, they have been subjected to relatively little empirical analysis. To address this, we introduce the LR-MEXCLP, a hybrid model combining the local busyness estimates of MALP with the maximum coverage objective of MEXCLP. We then solve a series of problems with all three models and employ simulation to estimate aggregate service levels. We find that LR-MEXCLP leads to modest but consistent service gains over both MALP and MEXCLP. These results support the merits of local busyness estimates, but they also suggest that the α-reliability objective may be inappropriate when seeking to maximize aggregate system response capabilities. More generally, our research underscores the utility of (a) linking modeling assumptions and goals with real-world application contexts, and (b) employing simulation or other techniques to validate theoretical results.  相似文献   
27.
Outsourcing and trade integration of advanced countries is debated with respect to employment effects, in particular for low educated workers – at least in relative terms. We study the employment effects – differentiated by educational attainment levels – of changes in the patterns of trade integration and outsourcing in the Austrian economy over the periods 1995–2000 and 2000–2005 using hierarchical decomposition analysis based on deflated input–output tables. Outsourcing is modeled as changes in the shares of domestically produced intermediates in total intermediates. A similar decomposition of the final demand vector allows us to draw conclusions on the overall employment effects of trade integration. The results suggest that the expected negative employment effects of outsourcing and rising import penetration have been overcompensated by increasing exports. Thus, the overall employment effects of Austrian trade integration have been positive for all educational attainment groups. However, whereas the total effects have been strongest for medium and high educated workers over the period 1995–2000, employment of low educated workers have been strongest and positively affected over the period 2000–2005. This pattern can be explained by a more sluggish export performance together with stronger negative effects of outsourcing and import penetration in medium and high-skill intensive products.  相似文献   
28.
Assessing the reversal of sentiment in stock markets is needed because, according to the social mood cycle, the change of social mood over time is an antecedent of price movements. The purpose of this study is to empirically assess reversal of investor sentiment, to show the phases of social mood cycle from increasing mood to decreasing mood, and to explain the dynamic change in market inefficiency from increasing to decreasing. Growth modeling, developed particularly for dealing with the change over time, is used in this study for assessing the reversal of investor sentiment. The autocovariance structure of errors and the variances/covariances of the random coefficients are all taken into account in the model. The results have indicated that the change in investor sentiment over time is inverted U-shaped for the entire market. Moreover, arbitrage constraint and stock characteristics exert a joint moderating effect on sentiment reversal. Less arbitrage constraint can strengthen sentiment reversal only when the market for individual stocks is dominated by noise traders. Based on the results obtained, we discuss asset pricing, liquidity management, and market intervention.  相似文献   
29.
30.
Based on the business environmental literature and system dynamics, this paper develops a simulation model for managing the business risks derived from climate change. In particular, the purpose of this paper is to transform the valuable findings from the literature regarding climate change and corporate implications into an effective business management model with a broad applicability, regardless of the size of the business or the sector in which it operates. A methodology consistent with the basic principles of the system dynamic modeling process is developed, and a case study is designed to determine the level of completeness of the simulation model and its ability to address different aspects of business performance. To do so, three different scenarios have been simulated to analyze the reactive, proactive and inactive stance of managers against climate change risks. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment  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