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   117篇
  免费   3篇
电工技术   2篇
化学工业   15篇
金属工艺   1篇
机械仪表   3篇
建筑科学   2篇
矿业工程   3篇
能源动力   1篇
轻工业   4篇
水利工程   5篇
无线电   10篇
一般工业技术   18篇
冶金工业   34篇
自动化技术   22篇
  2024年   1篇
  2020年   1篇
  2018年   2篇
  2017年   2篇
  2016年   3篇
  2015年   1篇
  2014年   1篇
  2013年   7篇
  2012年   3篇
  2010年   2篇
  2009年   5篇
  2008年   6篇
  2007年   8篇
  2006年   8篇
  2004年   5篇
  2003年   3篇
  2002年   2篇
  2001年   4篇
  2000年   1篇
  1999年   2篇
  1998年   6篇
  1997年   7篇
  1996年   5篇
  1995年   2篇
  1994年   4篇
  1993年   1篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1986年   2篇
  1984年   2篇
  1982年   1篇
  1980年   1篇
  1978年   1篇
  1977年   1篇
  1976年   2篇
  1975年   2篇
  1973年   1篇
  1972年   2篇
  1970年   1篇
  1969年   1篇
  1966年   1篇
  1963年   1篇
  1957年   1篇
  1934年   1篇
排序方式: 共有120条查询结果,搜索用时 15 毫秒
101.
Reports an error in "Getting Even or Moving On? Power, Procedural Justice, and Types of Offense as Predictors of Revenge, Forgiveness, Reconciliation, and Avoidance in Organizations" by Karl Aquino, Thomas M. Tripp and Robert J. Bies (Journal of Applied Psychology, 2006[May], Vol 91[3], 653-668). The first sentence in the first paragraph on page 660 is incorrect. The corrected sentence should read as follows: "The patterns of all three interactions support our theoretical explanation that (a) a victim of lower status than the offender pursues revenge as the only means of achieving justice when procedural justice climate is low and (b) victims with high absolute status refrain from revenge by attempting forgiveness and reconciliation when procedural justice climate is high because the organization can be counted on to mete out justice." (The following abstract of the original article appeared in record 2006-07101-011.) A field study and an experimental study examined relationships among organizational variables and various responses of victims to perceived wrongdoing. Both studies showed that procedural justice climate moderates the effect of organizational variables on the victim's revenge, forgiveness, reconciliation, or avoidance behaviors. In Study 1, a field study, absolute hierarchical status enhanced forgiveness and reconciliation, but only when perceptions of procedural justice climate were high; relative hierarchical status increased revenge, but only when perceptions of procedural justice climate were low. In Study 2, a laboratory experiment, victims were less likely to endorse vengeance or avoidance depending on the type of wrongdoing, but only when perceptions of procedural justice climate were high. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
102.
103.
Abstract— The effects of interocular luminance differences on stereoscopic depth perception has been investigated. The stimuli were stereoscopic square‐shaped targets created from disparity embedded in a dynamic random‐dot stereogram, which eliminated other cues to depth perception. The results revealed that stereoscopic depth perception survived significant interocular differences in luminance levels, even up to differences of 60%, provided that display luminance was approximately 0.63 cd/m2 or higher. In terms of design criteria, developers of stereo displays can use a fairly large range of interocular luminance levels and still induce good stereo depth perception.  相似文献   
104.
E-commerce researchers and managers have argued that long tail effects on pricing and product purchase are an important way in which Internet retail differs from traditional “brick & mortar” businesses. These effects have been attributed to several factors including increase assortment size and the reduction of search costs amongst others. While the Internet by its nature lowers search costs, its effect is not uniform. This study looks at that heterogeneity. Specifically, we investigate whether the role of reduced search costs in the long tail phenomenon is better conceptualized as a direct effect, or as a moderating effect. We contribute to the literature by combining the rationale from variety seeking behavior and need for uniqueness found in marketing with information systems research on search costs. Using consumer purchase information for over 16,000 purchases in a single product category, from over 4000 households, we perform a direct test of the impact of search costs on the Internet by comparing the product dispersion of purchases within homes with broadband service to those in homes with dial-up service. This study provides evidence that the conventional view that search costs directly impact consumer propensity to purchase a niche good can be improved by looking at search costs as an environmental condition which alters purchase behavior. Specifically, we find that search costs act primarily as a moderating factor for socio-economic status independent variables, altering the impact of classic consumer purchase factors.  相似文献   
105.
106.
Through case studies of 2 working-class Latino middle school students (ages 12 and 14), we examine how the young people negotiated economic and cultural barriers to digital media and mobilized opportunities to use media in pursuit of their own interests. For the young people in our study, school assignments offered opportunities to use digital media tools and become 'content creators.' However, the nature of the assignments and the restrictions placed on technology use in the classroom stood in contrast to the interests that motivated the teens' participation in popular media culture outside of school. We argue that this disconnect limited the potential of media production assignments to connect to student interests and provide youth with meaningful access to new technology.  相似文献   
107.
Spout fluidized beds are frequently used for the production of granules or particles through granulation. The products find application in a large variety of applications, for example detergents, fertilizers, pharmaceuticals and food. Spout fluidized beds have a number of advantageous properties, such as a high mobility of the particles, which prevents undesired agglomeration and yields excellent heat transfer properties.A discrete element model is used describing the dynamics of the continuous gas phase and the discrete droplets and particles. For each element momentum balances are solved. The momentum transfer among each of the three phases is described in detail at the level of individual elements.The results from the discrete element model simulations are compared with local measurements of time time-averaged particle volume fractions as well as particle velocities by using a novel fibre optical probe in a fluidized bed of 400 mm I.D. Simulations and experiments were carried out for three different cases using Geldart B type aluminium oxide particles: a freely bubbling fluidized bed; a spout fluidized bed without the presence of droplets and a spout fluidized bed with the presence of droplets. It is found that the experimental and numerical results agree in a qualitative manner.It is demonstrated how the discrete element model can be used to obtain information about the interaction of the discrete phases, i.e. the growth zone in a spout fluidized bed. Additional analysis of the numerical results indicates that liquid breakthrough does not take place for the studied test case.  相似文献   
108.
Reporting on the SWEBOK project, the authors-who represent the project's editorial team-discuss the three-phase plan to characterize a body of knowledge, a vital step toward developing software engineering as a profession  相似文献   
109.
A number of patients with complex congenital heart disease who were initially palliated with a classic Glenn shunt subsequently underwent modified Fontan procedures. This report discusses the operative management of complete occlusion of right atrial-to-right ventricular conduits in patients with patent classic Glenn shunts. The literature is reviewed regarding similar patients, and alternative treatment strategies are discussed.  相似文献   
110.
The sign test has become one of the most frequently used tests of significance. When α = .05 and N ≥ 25 there is a more simplified test of significance. This test of significance and a technique for determining what sample size would be needed to attain significance are developed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  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