Here is the US Govt.’s Office of Scientific and Technical Information (OSTI) site link that can be useful to faculty and students in sciences to access large amount of information on research and development.
Science.gov searches over 40 databases and over 2000 selected websites, offering 200 million pages of authoritative U.S. government science information, including research and development results.
WorldWideScience.org is a global science gateway connecting you to national and international scientific databases and portals. WorldWideScience.org accelerates scientific discovery and progress by providing one-stop searching of global science sources.