A miniature UAV or small UAV (SUAV) is an unmanned aerial vehicle small enough to be man-portable. Miniature UAVs range from micro air vehicles (MAVs) that can be carried by an infantryman, to man-portable UAVs that can be carried and launched like an infantry man-portable air-defense system. The term is …
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Vehicle electrification is one of the greatest developments in the automotive sector. Increasing apprehension about environmental fortification has prompted the research that greatly propelled the electric mobility around the globe. By 2025, 7 million electric vehicles are projected to be on the road in the US, with 5 million charge …
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Global aviation fuel market was valued at US$178.560 billion in 2019 and is expected to grow at a CAGR of 6.00% to reach a total market size of US$253.261 billion in 2025. Booming travel and tourism industry is one of the major drivers of global aviation fuel market. According to …
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Zero-point energy is the energy that remains when all other energy is removed from a system. Zero-point energy is the lowest energy that a given quantum mechanical system can have (i.e., the ground state of the system). In quantum field theory, it refers to the energy of the vacuum (i.e., …
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Since the Industrial Revolution, the environmental impacts of energy have posed a concern. Recently, this has driven researchers to search for viable options for clean and renewable energy sources. Due to its affordability and environmental friendliness, hydrogen is a feasible alternative to fossil fuels for energy applications. However, due to its …
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Torpedoes are self-propelled guided projectiles that operate underwater and are designed to detonate on contact or in proximity to a target. For the U.S. Navy, the modern torpedo enables submarines to defeat surface and undersea threats and gives surface ships and aircraft the means to reach beneath the surface and …
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In Newton’s law of universal gravitation, gravity was an external force transmitted by unknown means. In the 20th century, Newton’s model was replaced by general relativity where gravity is not a force but the result of the geometry of spacetime. Under general relativity, gravity is the result of following spatial geometry …
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Renewable energy is at the centre of the transition to a less carbon-intensive and more sustainable energy system. Renewables have grown rapidly in recent years, accompanied by sharp cost reductions for solar photovoltaics and wind power in particular. The future development of wind power presents a significant opportunity in terms …
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Electronics has revolutionized our society by providing many devices e.g. laptops, palm pilots, digital cameras, household robots, etc. Every electronic system or device needs electric power to operate, whether it is from walled AC supply or a battery. This electric power cannot be stored infinitely in any rechargeable device like …
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Conventional daylighting scheme employing windows and skylights are no longer so useful especially for daylighting of high-rise and intensive buildings. Residential buildings with limited natural lighting are generally lit by fuel-based electricity which contributes to increase of CO2 concentration in the atmosphere. Alternatively, the concentrated solar energy can be transmitted …
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