The ACM Digital Library is the full-text repository of all ACM publications. It also hosts a collection of full-text publications from select publishers focused on the field of computing.
The Digital Library contains the full-text of every article ever published by the Association for Computing Machinery, including journals, conference proceedings, technical magazines, newsletters and books. as well as bibliographic information for articles produced by other computing publishers.
OSTI.GOV is the primary search tool for Department of Energy (DOE) science, technology, and engineering research and development information.
From the Department of Energy (DOE) Office of Scientific and Technical Information (OSTI), OSTI.GOV makes discoverable decades of research results from DOE and its predecessor agencies. Research results include journal articles/accepted manuscripts and related metadata; technical reports; scientific research datasets and collections; scientific software; patents; conference and workshop papers; books and theses; and multimedia.
Subjects covered include biology and medicine, fission and nuclear technologies, national defense, chemistry, fossil fuels, physics, energy storage, geosciences, power generation and distribution, engineering, renewable energy sources, mathematics and computing, and environmental sciences.
Here's a reminder of how to get started searching for journal articles using Hekman's Primo search.