Ei Compendex is a comprehensive engineering literature database which provides access to peer reviewed and indexed publications from 73 countries across 190 engineering disciplines. It also contains publications from related areas, such as Applied Physics, including Optics; Bioengineering and Biotechnology; Food Science and Technology; Materials Science; Instrumentation, including Medical Devices; and Nanotechnology. The database indexes journals (including articles in press from some of the journals), trade magazines, conference proceedings and book series.