Biofuels are regarded as promising alternative to satisfy growing energy demands. Biomass derived biodiesel and bioethanol can be successfully utilized in modem vehicle engines with little or no modifications and thus contribute to lower combustion emissions in comparison to the former. Adequate production not only serves as long term replacement …
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A helicopter, or chopper, is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally. These attributes allow helicopters to be used in congested or isolated areas where …
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Energy harvesting is the process of collecting low-level ambient energy and converting it into electrical energy to be used as a power source for miniaturized autonomous devices. Examples of this can be seen in structural health monitoring, smart packaging solutions, communication systems, transportation, air and aerospace vehicles, structural biology, robotics, …
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The vision for the future soldier is to be combat effective and also highly mobile, adaptive, networked, sustainable with total battle space situation awareness and information assurance. Therefore, he is equipped with night- vision goggles, radios, smartphones, GPS, infrared sights, a laptop as well as batteries to power them. Some …
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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 great emphasis on achieving new devices with greater power density …
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A nuclear submarine is a submarine powered by a nuclear reactor. The performance advantages of nuclear submarines over “conventional” (typically diesel-electric) submarines are considerable. Nuclear submarines are more powerful than diesel-powered submarines because nuclear reactors powering them can run for years without the need for refuelling. Nuclear propulsion, being completely …
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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 systems, especially in an airborne platform where compactness, light-weight and …
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A neutron beam can destroy electronics and that would be useful in warfare. The U.S. Defense Strategic Defense Initiative put into development the technology of a neutral particle beam to be used as a weapon in outer space. Neutral beam accelerator technology was developed at Los Alamos National Laboratory. According to …
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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 directly into electrical energy according to the Seebeck effect. …
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Battery usage has expanded from mobile phones and laptops to LED lamps, portable fans, toys, toothbrushes, and even automobiles. Now, the battery applications are expanding further as the Internet of Things, Industry 4.0, big data, mobile and cloud computing are introduced. People build systems to obtain, manage and utilise data …
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