The Department of the Interior published on May 18, 2018, a list of 35 mineral commodities considered critical to the economic and national security of the United States. These minerals have been designated as critical to the US’s national interest…...
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The cities of today are built with concrete and steel between they are responsible for as much as a tenth of worldwide carbon emissions. Before they ever reach a construction site, both steel and concrete must be processed at very…...
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The design of aerodynamic airfoils is optimized for certain conditions. For instance, the shape of the wings of fixed-wing aircrafts are designed and optimized for a certain flight condition (in terms of altitude, speed, aircraft weight, etc.). However, these flight…...
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Silicon carbide, also known as carborundum, is a unique compound of carbon and silicon and is one of the hardest available materials. Characteristics such as relatively low thermal expansion, high force-to-weight radius, high thermal conductivity, hardness, resistance to abrasion and…...
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Integrated circuits and power devices utilized by the semiconductor industry for the production of advanced computers, consumer electronics, communication networks, and industrial and military systems have been almost exclusively based on silicon technology. The requirements of future electronics place a…...
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Geopolymer concrete—an innovative material in light of the ongoing emphasis on sustainability is a potential alternative to conventional portland cement concrete for use in transportation infrastructure construction. In contrast to portland cement, most geopolymer systems rely on minimally processed natural…...
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Recent advances of high power solid state lasers promises necessary laser power levels required for the Directed Energy Weapons (DEW) systems. However, inefficiencies of the laser components still generate too much waste heat to be managed by conventional liquid cooling…...
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The inductors along with capacitors and resistors, inductors are one of the three passive elements that are the foundations of all electronics. An inductor works by inducing a magnetic field as an electric current flows through its coil of wire.…...
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Modern warfare is increasingly dependent on microelectronics capabilities that sense the environment, convert the signals into data streams, process the information, and generate a response. In this sense, Aerospace and Defense (A-D) systems are quite similar to commercial systems that…...
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Thermoelectric energy harvesting mainly depends on the operation of the thermoelectric generator (TEG). A thermoelectric (TE) device can directly convert heat emanating from the Sun, radioisotopes, automobiles, industrial sectors, or even the human body to electricity. A TEG converts heat…...
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