A new approach to harvesting solar energy, developed by Massachusetts Institute of Technology, Cambridge, researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic cell.
For some people, nothing can top a morsel of luxuriously rich, premium chocolate. But until now, other than depending on their taste buds, chocolate connoisseurs had no way of knowing whether they were getting what they paid for.
The smallest leaks are unacceptable with natural gas vehicles (NGV) fuel systems, so traditional leak testing approach is helium mass spectrometry.
“The interface is the device,” Nobel laureate Herbert Kroemer famously observed, referring to the remarkable properties to be found at the junctures where layers of different materials meet.
Nitrex Metal, St. Laurent, Quebec, reports that Polish aircraft engine and gear transmission manufacturer WSK “PZL- Kalisz” has started production on its new NXK-609 nitriding system from Nitrex Metal. The self-contained turnkey system, which has a diameter of 24 in. and a height of 36 in., nitrides gears and housings supplied to many world-leading aerospace firms. Nitriding with Nitreg technology meets the company’s requirement for precise control of the white layer thickness on Nitralloy parts, including zero white layer.
