efunda, the ultimate online reference for the mechanical engineering community

access 160+ million publications and connect with 25+ million researchers. join for free and gain visibility by uploading your research.

leading provider of thermal conductivity measurement systems, including measurement platforms, lab instruments, and portable meters.

convert units of measurement for physics and maths (mks-, cgs- and si-system, metric, english and imperial)

material property database with data sheets of thermoplastic and thermoset polymers such as nylon, polycarbonate, polyethylene; metal alloys, aluminum, steel, titanium, nickel, cobalt, and zinc alloys; ceramics, lubricants. free search tools include mechanical property searches. comparison and exports to finite element analysis fea software solidworks, ansys, algor, and more.

river publishers - it is the mission of river publishers to become a leading market player in the publishing and distribution of state-of-the-art, peer-reviewed, english language academic and professional content in specific stm fields; books written by academics and engineers for the institutional and professional markets.

easy unit converter & online calculator convert measurement units like length, weight, height, percentage, mortgage, loan, interest, tip, & finance calculations.

materials today is a community dedicated to the creation and sharing of materials science knowledge and experience.

the chartered institution of building services engineers (cibse) is the professional body that exists to advance and promote the art, science and practice of building services engineering, to invest in education and research, and to support our community of built environment professionals in their pursuit of excellence.

the ieee communications society is a global community of engineers, practitioners and academics working together to advance communications technology for the betterment of humanity.