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   5443篇
  免费   325篇
  国内免费   113篇
电工技术   19篇
技术理论   6篇
综合类   1143篇
化学工业   137篇
金属工艺   37篇
机械仪表   34篇
建筑科学   2300篇
矿业工程   60篇
能源动力   5篇
轻工业   272篇
水利工程   55篇
石油天然气   8篇
武器工业   1篇
无线电   54篇
一般工业技术   887篇
冶金工业   489篇
原子能技术   1篇
自动化技术   373篇
  2024年   59篇
  2023年   209篇
  2022年   224篇
  2021年   202篇
  2020年   260篇
  2019年   171篇
  2018年   147篇
  2017年   130篇
  2016年   143篇
  2015年   162篇
  2014年   389篇
  2013年   324篇
  2012年   418篇
  2011年   424篇
  2010年   370篇
  2009年   350篇
  2008年   305篇
  2007年   300篇
  2006年   283篇
  2005年   224篇
  2004年   194篇
  2003年   130篇
  2002年   134篇
  2001年   90篇
  2000年   43篇
  1999年   22篇
  1998年   19篇
  1997年   19篇
  1996年   11篇
  1995年   13篇
  1994年   6篇
  1993年   4篇
  1992年   6篇
  1991年   3篇
  1990年   10篇
  1989年   4篇
  1988年   6篇
  1987年   6篇
  1986年   6篇
  1985年   6篇
  1984年   6篇
  1983年   4篇
  1971年   3篇
  1966年   3篇
  1964年   3篇
  1963年   2篇
  1961年   3篇
  1957年   5篇
  1956年   2篇
  1955年   7篇
排序方式: 共有5881条查询结果,搜索用时 31 毫秒
131.
This research explores the extent to which users across cultures adopt the technology of online social networks (OSNs) in order to promote or support a social cause. By surveying graduate-level university students at institutions in the United States, China and India, this research builds on prior work in technology acceptance to model and explain how three elements of the task domain – the cultural aspects of the user, the social nature of the technology, and the social nature of the task – combine to influence the constructs and relationships within a modified Technology Acceptance Model (TAM) framework as well as the behavior that flows from it. This study contributes to our understanding of technology adoption by showing how OSNs are adopted by users across cultures in promoting and supporting social causes.  相似文献   
132.
The purpose of this mixed‐methods study was to explore how seventh graders in a suburban school in the United States and sixth graders in an urban school in Taiwan developed argumentation skills and science knowledge in a project‐based learning environment that incorporated a graph‐oriented, computer‐assisted application (GOCAA). A total of 42 students comprised the treatment condition and were engaged in a project‐based learning environment that incorporated a GOCAA. Of these 42 students, 21 were located in the United States and 21 were located in Taiwan. A total of 26 students comprised the control condition and were engaged in a project‐based learning environment without the GOCAA. Of these 26 students, 15 were in the United States and 11 were in Taiwan. In each country, verbal collaborative argumentation was recorded and the students' post‐essays were collected. A one‐way analysis of variance (ANOVA) was conducted for each measure of science knowledge about alternative energies. The results showed a significant treatment effect for the outcome of scientific explanation among U.S. students, while among Taiwanese students, a significant treatment effect on scientific facts was observed. A one‐way ANOVA was additionally conducted for each measure of argumentation skills and a significant treatment effect on counterarguments and rebuttals was observed among the U.S. students, while in Taiwan, a significant treatment effect on reasoning and rebuttals was observed. A qualitative analysis was conducted to examine how the GOCAA supported students' development of argumentation skills in different countries. This study found distinct argumentation patterns between the U.S. and Taiwanese intervention teams. Additionally, a distinct gender difference in the use of evidence and division of labour was noted when the Taiwanese teams were compared with the U.S. teams, which may be explained by cultural differences. This study concluded that, in both the United States and Taiwan, a project‐based learning environment incorporating a GOCAA was effective in improving students' science knowledge and developing their scientific argumentation skills.  相似文献   
133.
A study of part‐time student experience of university courses delivered using a range of technologies found that information and communication technology enabled students to move between study and work experience to the benefit of their learning in both contexts. Technology‐based study activities enabled students to participate in learning both as a student and as a member of a practice or work context. Given the increasingly pressured lives of all students in higher education and their aspirations for employment after graduation, this suggests that we would benefit from taking their relationship to work and professional practice into account more directly, in deciding how to integrate technology into their study experience. Teacher conceptions of technology as a tool primarily for information delivery and discussion need to expand to recognize that it can be used to construct learning experiences situated in roles, skills and interactive environments that enhance students' ability to make transitions across the boundaries between contexts of study and work.  相似文献   
134.
任何文化都是积淀的产物,校园文化景观也不例外。大学校园文化景观,不仅在塑造大学的良好形象方面,还在形成大学生完美人格,促进大学生身心健康、和谐发展等方面发挥着重要作用。  相似文献   
135.
安迪·沃霍尔用机械复制的手法去表达他所要表达的内容,丝网作业法就是他要消除艺术家的个人手法的一种方法,"重复"和"挪用"被他用到了无以复加的地步。在消费社会高度发展的时代,安迪·沃霍尔用大众文化挑战了大众文化,但他的艺术成为了"批评性的艺术"。艺术进入大众文化,并不等于说它本身就是大众文化了,本文试图从安迪·沃霍尔的艺术入手来探讨艺术与消费社会的关系。  相似文献   
136.
对传统文化中图形、色彩等元素在视觉传达设计中的运用进行了分析,并阐释了如何在视觉传达设计中将传统文化的神韵与现代设计相结合,达到文化的传承与发展。  相似文献   
137.
浙江石窗是第二批浙江省非物质文化遗产名录中的一项民间美术,它是盛开在浙江大地上的一朵建筑民俗之花,它的审美趣味与当地的民风民俗和建筑风格完全融合,它的表现手法与中国的吉祥图案一脉相连。  相似文献   
138.
人类发展的进程中,设计艺术与文化因素同步发展,文化是设计的基础,设计作为文化的视觉载体,是物质和精神文明的统一载体,设计师基于自身的文化底蕴,运用已有的工具和工艺,根据设计理念用创造性的手法将材料加工成具有一定造型艺术的实体,使之成为具有使用价值和审美价值合一的产品。本文就艺术设计与文化因素进行相关探讨。  相似文献   
139.
浙江石窗艺术是浙江省非物质文化遗产中的一项民间美术,它是盛开在浙江大地上的一朵建筑民俗之花,它的精神内涵是当时社会思潮的折射,它的物质基础呈现了当时社会经济的发展水平。  相似文献   
140.
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