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MatWeb - Online Materials Information Resource MatWeb's searchable database of material properties includes data sheets of thermoplastic and thermoset polymers such as ABS, nylon, polycarbonate, polyester, polyethylene and polypropylene; metals such as aluminum, cobalt, copper, lead, magnesium, nickel, steel, superalloys, titanium and zinc alloys; ceramics; plus semiconductors, fibers, and other engineering materials.
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95 |
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SciNet paper search An online paper database published by the American Mathematical Society
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177 |
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Google Scholar A freely-accessible Web search engine that indexes the full text of scholarly literature
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86 |
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8 |
Paper free archive An archive for electronic preprints of scientific papers in the fields of mathematics, physics, computer science, quantitative biology and statistics which can be accessed via the Internet.
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87 |