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Thermal, Propulsion & Energy

3D printing Scramjet engines

3D printing or additive manufacturing is ongoing revolution in manufacturing with its potential to fabricate any complex object and is being utilized from aerospace components to human organs, textiles, metals, buildings and even food. Additive manufacturing is defined by ASTM International as the process of joining materials together, layer by …

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Negative capacitance for low power transistors to efficient super capacitors

As we increasingly rely on computers for daily tasks, the energy needed to run these systems is becoming substantial. The total amount of energy the U.S. dedicates to computing has risen dramatically over the last decade and is quickly approaching that of other major sectors, like transportation. Studies show that the …

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Passive and Active Soldier Armor cooling enhance soldier performance in extreme environments

The wearing of body armour  provide troops an unparalleled advantage on the battlefield, improving survivability and reducing casualtiesis. It has also been very effective in reducing injuries and fatalities within the police force and correctional services.   This protection comes at a price, however. U.S. ground troops today carry an …

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Laser-based wireless power transmission (LWPT) technology

Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, a transmitter device, driven by electric power from a power source, generates a time-varying electromagnetic field, which …

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DARPA plans Laser-based wireless power transmission network on Battlefield

Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, a transmitter device, driven by electric power from a power source, generates a time-varying electromagnetic field, which …

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Thermophotonics cooling with light-emitting diodes

Thermophotonics (often abbreviated as TPX) is a concept for generating usable power from heat which shares some features of thermophotovoltaic (TPV) power generation. Thermophotonics was first publicly proposed by solar photovoltaic researcher Martin Green in 2000. However, no TPX device is known to have been demonstrated to date, apparently because …

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Roll Out Solar Array (ROSA) are flexible and lightweight solar array being tested on Satellites

The solar cells produce electrical power (current) from incident sunlight.  However, individual solar cells generate very little power. So, in order to generate more power, a group of cells that are present in an array form can be used. Solar arrays are primarily used in satellites in order to provide …

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Improved Lead-Acid Batteries including lead-crystal and carbon foam batteries making comeback

Virtually every modern naval weapons system, in fulfilling its mission, is highly dependent upon the performance characteristics of its electrochemical power supply. For example, batteries are used to power detection, guidance, control, ignition, propulsion, arming, fuzing, transmitting and jamming devices. The need for weapons with increased range, speed, endurance, sensitivity …

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Satellite Electric Power Subsystem (EPS) is a vital subsystem providing the power required for mission

Satellite present in an orbit should be operated continuously during its life span. All the satellites require internal power in order to operate various electronic systems and communications payloads that are present in it. The Electrical Power System (EPS) is a vital subsystem whose primary role is to supply satellite …

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China displaces US as global leader In Renewable Energy enabling strategic military advantage

A burgeoning economic, political and military power, China is also aiming to lay down a marker on the renewable energy sector. On 22 September 2020, President Xi declared China’s commitment to achieving carbon neutrality by 2060, at the 75th Session of The United Nations General Assembly. China joined over a …

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