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Rajesh Uppal

DARPA SIGMA+ using advanced intelligence analytics to detect chemical, biological, and explosives threats

Since the invention of nuclear power, there have been numerous “accidents.” From Three Mile Island and Chernobyl to the more recent problems in Fukushima, it would seem nuclear power is not fully under our control. Recently  a Chinese scientist  has warned that the single mountain under which North Korea most …

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DARPA MFP developed drone swarm interceptor system to protect convoys moving through populated regions

“The rapid evolution of small unmanned air systems (sUAS) technologies is fueling the exponential growth of the commercial drone sector, creating new asymmetric threats for warfighters. sUASs’ size and low cost enable novel concepts of employment that present challenges to current defense systems. These emerging irregular systems and concepts of …

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Perovskite quantum dots attractive for LED displays, quantum dot solar cells and single photon emitter

In the past few years, metal halide perovskite quantum dots and nanocrystals have been extensively explored due to their unique optoelectronic properties and extensive application prospects. Perovskites are materials that share a crystal structure similar to the mineral called perovskite, which consists of calcium titanium oxide (CaTiO3). Depending on which …

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Stealth ships

A stealth ship is a type of ship which is especially used as a war vessel and is concealed from the navy vessels of other countries. It is an important warfare tactic that is used by nations wide across the world. Since they are invisible but the opposite navy vessels …

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Quantum dot based Quantum communications networks

Quantum technologies have the potential to spur revolutions in computing, sensing, cryptography and beyond. Quantum computing and quantum communication are believed to be the future of information technology.  Single-photon sources are important for current research in quantum information, cryptography, and the production of truly random numbers.   The possibility of …

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Crime reduction, prevention and response is being bolstered though 5G, data analytics and AI tools

Criminal activity continues to be a major concern in modern civilisations, with most nations facing unacceptable levels of crime and delinquency. The results show that African and Latin American countries suffer from the highest levels of various types of crime across the board, followed by countries in Asia. European, North American …

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Armies Investing in Predictive Maintenance Technology

Logistics is often referred to as the “sinews of war”, linking forward-deployed units with support elements to ensure they are supplied, maintained and ready for the next operation. There is a saying in military circles – made famous by US Marine General Robert H Barrow – that amateurs study tactics, …

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Self-healing materials for automatic repair of smartphones, soft actuators and robots to spacecrafts

Generally, materials will degrade over time due to fatigue, environmental conditions, or damage incurred during operation. Repair of certain materials during their lifecycle (especially those with structural functions such as concrete) can be very expensive and labour intensive.  Therefore Scientists began developing self-healing materials ,  those artificial (synthetic) substances that …

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Microwave & RF Absorbers and materials

Radiation in a high-frequency circuit or system can be difficult to control. For that reason, RF/microwave absorber materials are often added to circuits to suppress or eliminate unwanted radiation either from the circuit to the outside or to minimize the effects of radiated signals outside a circuit (such as broadcast …

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Novel materials for 3D printing enabling high-performance parts optimized for strength, stiffness, and damage tolerance.

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. 3D printing is also revolutionizing defence by printing small components to full drones on naval vessels, …

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