Although the theory of lattice dynamics was established six decades ago, its accurate implementation for polar solids using the direct (or supercell, small displacement, frozen phonon) approach within ...
Mechanical Engineering Professor Alan McGaughey of Carnegie Mellon University recently coordinated the Phonon Olympics, ...
Everyone talks about the weather, but it falls to civil engineers to actually do something about it. Weather and temperature affect everything we use, from car batteries to bridges. When temperature ...
Cordierite, the material behind heat-resistant pizza stones, has been shown to resist changes in size despite significant temperature fluctuations. The reasons for this have been largely unexplained ...
Most metals expand when heated and contract when cooled. A few metals, however, do the opposite, exhibiting what’s known as negative thermal expansion (NTE). A team of researchers led by Ignace ...
A. Expansion splice plates for cable trays must be provided where necessary to compensate for thermal expansion and contraction [Sec. 392.44]. Thermal expansion is often overlooked and can be a ...
Research has been conducted on an extended expansion engine, using a multiple linkage system to increase the thermal efficiency of general-purpose engines. A four-jointed linkage was used between the ...
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