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   125篇
  免费   7篇
  国内免费   11篇
综合类   7篇
化学工业   2篇
金属工艺   1篇
机械仪表   3篇
建筑科学   19篇
矿业工程   4篇
轻工业   1篇
水利工程   4篇
无线电   22篇
一般工业技术   7篇
原子能技术   1篇
自动化技术   72篇
  2021年   5篇
  2020年   6篇
  2019年   4篇
  2018年   6篇
  2017年   5篇
  2016年   13篇
  2015年   7篇
  2014年   22篇
  2013年   13篇
  2012年   12篇
  2011年   9篇
  2010年   13篇
  2009年   8篇
  2008年   7篇
  2007年   5篇
  2006年   2篇
  2005年   1篇
  2003年   1篇
  1999年   2篇
  1994年   1篇
  1985年   1篇
排序方式: 共有143条查询结果,搜索用时 15 毫秒
1.
Enhanced matrix-filler adhesion is realized after filler treatment with a surface treatment process. The hydrosol/coupling agent treatment was applied to a wide range of inorganic and organic fillers, and adhesion to a variety of matrix resins was improved. Scanning Electron Microscopy (SEM) was used to determine the locus of failure in the filled systems. The locus of failure shows the relative degree of adhesion between the filler and the polymer matrix. Significant improvement in adhesion in humid environments is also observed.  相似文献   
2.
Social networking sites (SNS) have transformed how individuals interact, build and maintain social relationships. We proposed a research model on the determinants of user continuance using Bagozzi's framework of self-regulation as the theoretical foundation. Following the process of appraisal → emotional reactions → coping responses, we developed the model by leveraging findings from social presence and IS continuance research. Based on survey data from Facebook users, we found that appraisal factors (pleasure, awareness, connectedness, and system quality) were strong determinants of emotional reaction (user satisfaction and sense of belonging). User satisfaction and sense of belonging together positively influenced continuance intention.  相似文献   
3.
新型媒介形态SNS在人际传播中表现出了瞬间的爆发力和持久的高速度,已成为反映大学生思想动态的一个重要窗口和敏感地带.因此,要把握影响大学生SNS人际传播的意愿因素,充分认识到SNS人际传播对高校舆情和思想政治工作带来的问题,通过加强队伍机制、完善预警机制、推进自组织机制和转变把关人机制等新机制,使思想政治工作由平面走向立体,变被动为主动.  相似文献   
4.
随着社交化的推进,社交网络平台在结构和业务特征上出现了新的特点。通过对社交网络业务环境的访问控制需求进行分析,结合访问控制的最新发展方向研究设计适合社交网络业务环境系统的访问控制方案,从而实现社交网络平台中的权限的灵活管理,为社交网络业务环境中的安全保护提供访问控制解决方案。  相似文献   
5.
The purpose of the present study was to examine the prevalence of cyber-bullying through Facebook in a sample of 226 Greek university undergraduates, and to explore whether big five personality characteristics, narcissism, as well as attitudes toward Facebook, technological knowledge and skills were predictive of such behavior. Participants completed a self-report questionnaire measuring the above constructs. Results indicated that almost one third of the sample reported Facebook bullying engagement at least once during the past month, with male students reporting more frequent involvement than females. Bullying through Facebook was predicted by low Agreeableness and more time spent on Facebook only for males, whereas for females none of the studied variables predicted engagement in Facebook bullying. Findings are discussed in terms of prevention and intervention strategies.  相似文献   
6.
《Information & Management》2016,53(6):740-751
This study develops a research model that explains the continuance of corporate social network service (SNS) pages. In order to find antecedents that influence end users’ continuance intention, this study adopts communicative ecology theory from media and communication studies. Results indicate that the quality of social interaction is the most salient feature, as indicated by the fact that it has the highest impact on perceived usefulness and enjoyment. Moreover, content quality also increases both perceived usefulness and enjoyment, while SNS platform quality and service quality increase perceived usefulness only. In addition, perceived network size moderates the impact of social interaction quality on perceived enjoyment.  相似文献   
7.
随着社交网站的流行以及用户的大规模增加,社交网络用户行为分析已经成为社交网站进行网站维护、性能优化和系统升级的重要基础,也是网络知识挖掘和信息检索的重要研究领域。为了更好地理解社交网络用户添加个人标签的行为特征,该文基于大约263万个微博用户的真实数据,对用户标签的分布进行了研究和分析。我们主要考察了用户标签的宏观分布特征,以及用户标签与关注对象的标签分布之间的联系,发现微博用户给自己添加标签时,在开始阶段倾向于使用反映个性的标签,之后会出于从众心理而选用大众化标签。我们将研究发现运用到基于关注关系的标签预测算法中,结果证实相关分析对于社交网站的标签推荐等课题具有一定的参考意义。  相似文献   
8.
为减少Pub/Sub系统中遍历广播的负载,基于社会学行为的小世界架构,提出了一种基于朋友圈的路由,给出了朋友圈划分算法以及基于朋友圈的Pub/Sub系统遍历算法,以限制消息在确定范围内传播,降低消息遍历的时间和广播开销。仿真实验表明,所提出的方法与Pub/Sub系统中传统的Gossip及洪泛法相比较,可加快消息的传播速度,降低网络开销。  相似文献   
9.
本文从城市多元化的视角阐释美国电视剧《老友记》成功的原因,展现以纽约为代表的多元化现代都市中的各种元素的碰撞,并进一步预测这些大城市的未来命运。  相似文献   
10.
Social networking site (SNS) use decisions have led to major economic and social transformations worldwide. While many organizations seek to use SNSs from a strategic perspective to reach their customer, it is important to understand what makes SNSs successful in order to use them for competitive purposes. The current research evaluates the influence of the social capital theory on SNS success measures. A model was developed and empirically tested using two data samples to ensure valid and reliable results for success of SNSs. The results display the importance of social capital in SNS success followed by practitioner and academic implications.  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