Founded in 1880 as the American Society of Mechanical Engineers, ASME is a not-for-profit professional organization that promotes the art, science and practice of mechanical and multidisciplinary engineering and allied sciences throughout the world. The core values of ASME are rooted in its mission to better enable mechanical engineering practitioners to contribute to the well-being of humankind.
Science.gov is a gateway to government science information and research results. Currently in its fifth generation, Science.gov provides a search of over 36 scientific databases and 200 million pages of science information with just one query, and is a gateway to 1,850+ scientific Websites (see Science.gov fact sheet).
Science.gov 5.0 provides the ultimate science search through a variety of features and abilities, including:
Accessing over 36 databases and 200 million pages of science information via one query
Clustering of results by subtopics or dates to help you target your search
Wikipedia results related to your search terms
Eureka News results related to your search terms
Mark & send option for emailing results to friends and colleagues
More science sources for a more thorough search
Enhanced information related to your real-time search
New look and feel
Updated Alerts service
The National Academies Press (NAP) 是美国国家科学院下属的学术出版机构,主要出版美国国家科学院、国家工程院,医学研究所和国家研究委员会的报告。从1992年开始,计划将印刷本图书逐渐转化成电子图书。
目前通过其主站点可以免费在线浏览2500多种电子图书,图书内容覆盖环境科学、生物学、医学、计算机科学、地球科学,数学和统计学,物理、化学、教育等诸多领域。电子图书采用PDF文档格式,保持了书的原貌,并提供网上免费浏览。还可以进行全文检索、打印(一次一页)。访问无需帐号和口令,也无需下载电子图书专用阅读软件。
进入后可以按学科分类浏览,也可以输入检索词,在书名或全文中检索。在每一本书中可以像阅读印刷本图书一样按目次和章节阅读,也可输入检索词进行全文检索,然后直接点击进入有关的章节或页面。
CiteSeer is a scientific literature digital library and search engine that focuses primarily on the literature in computer and information science.
CiteSeerx is a scientific literature digital library and search engine that focuses primarily on the literature in computer and information science. CiteSeerx aims to improve the dissemination of scientific literature and to provide improvements in functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness in the access of scientific and scholarly knowledge.
期刊 会议 报告 / 部分全文
a free and open educational resource (OER)
for educators, students, and self-learners around the world.