Rajesh Uppal – Page 267 – International Defense Security & Technology

Metamaterials based optical cloaks that promise invisible planes, vehicles and armies, and protection from earthquakes & tsunamis

September 9, 2018 Military, Nanotech Comments Off on Metamaterials based optical cloaks that promise invisible planes, vehicles and armies, and protection from earthquakes & tsunamis

“Invisibility” is a goal that has been long sought after by the Militaries. An operational cloaking chip could be an extension of technologies such as radar-absorbing dark paint used on stealth aircraft, local optical camouflage, surface cooling to minimize electromagnetic IR emissions, or electromagnetic wave scattering. Metamaterials are the primary materials …

US Navy’s High altitude, Long endurance (HALE) UAV TRINTON to provide persistent ISR and Signal Intelligence capability in Pacific Theater

September 8, 2018 Air Force, Navy Comments Off on US Navy’s High altitude, Long endurance (HALE) UAV TRINTON to provide persistent ISR and Signal Intelligence capability in Pacific Theater

The U.S. Navy Northrop Grumman MQ-4C Triton long-range maritime patrol unmanned aerial vehicle (UAV) became operational in 2018, yet the unmanned aircraft continue to evolve with upgrades and add capabilities that include signals intelligence (SIGINT) and sense-and-avoid radar. The MQ-4C Triton Unmanned Aircraft System (UAS), is a high altitude, …

Army plans Laser Directed Energy Weapons to be deployed on Military trucks

September 8, 2018 Army, Photonics, Weapons Comments Off on Army plans Laser Directed Energy Weapons to be deployed on Military trucks

Laser weapons use high power lasers to damage or destroy adversary equipment, facilities, and personnel. The technology provides major advantages for military applications due to High precision and rapid on-target effect, precise and scalable effects, Avoidance of collateral damage caused by fragmenting ammunition, Low logistics overhead and minimum costs per …

Military looking to 4D printing to develop weapons that assemble themselves, last longer and adapt to specific conditions on command.

September 5, 2018 Manufacturing, Military, Weapons Comments Off on Military looking to 4D printing to develop weapons that assemble themselves, last longer and adapt to specific conditions on command.

3D printing or additive manufacturing is ongoing revolution in manufacturing with its potential to fabricate any complex object and is being utilized from printing small components to full drones on Naval vessels, printing replacement parts for fighter aircrafts to printing ammunitions, textiles, metals, human organs, clothing, buildings and even food. …

Challenges in humanitarian aid and disaster relief (HADR) missions and Operations and Technology requirements

September 4, 2018 Security Comments Off on Challenges in humanitarian aid and disaster relief (HADR) missions and Operations and Technology requirements

International reinsurer Munich RE has projected that worldwide losses due to 2017’s string of natural disasters will reach $330 billion, with only $135 billion of those costs insured. Hurricanes Harvey, Irma and Maria alone, which left behind $215 billion in damages, made 2017 the costliest hurricane season on record. This year’s …

DARPA’s Biostastis aims to enhance soldier survivability after battlespace injuries by slowing their biological clock

September 2, 2018 BioScience, Soldier Comments Off on DARPA’s Biostastis aims to enhance soldier survivability after battlespace injuries by slowing their biological clock

Biostasis is the ability of an organism to tolerate environmental changes without having to actively adapt to them. The word is also used as a synonym for cryostasis or cryonics. It is found in organisms that live in habitats that may encounter unfavourable living conditions (i.e. drought, freezing, a change …

DARPA’s Ground Truth program will create war game for testing the validity of social science models

August 29, 2018 AI & IT, Test & Measurement Comments Off on DARPA’s Ground Truth program will create war game for testing the validity of social science models

The social sciences can play important roles in assisting military planners and decision-makers who are trying to understand complex human social behaviors and systems, potentially facilitating a wide range of missions including humanitarian, stability, and counter-insurgency operations. Current social science approaches to studying behavior rely on a variety of …

DARPA MAA program aims to predict the terrorist threat of using weapons of mass terror (WMTs) through modeling and computational methods

August 16, 2018 AI & IT, Security, Weapons Comments Off on DARPA MAA program aims to predict the terrorist threat of using weapons of mass terror (WMTs) through modeling and computational methods

DARPA launched the program Modeling Adversarial Activity (MAA) program with a goal to develop mathematical and computational techniques for modeling adversarial activity for the purpose of producing high-confidence indications and warnings of efforts to acquire, fabricate, proliferate, and/or deploy weapons of mass terror (WMTs). MAA assumes that an adversary’s …

DARPA’s TEAC program developed phased-array sonar technology for Unmanned Underwater Vehicles (UUW or UUV) to establish a network of distributed sonars for Anti Submarine Warfare

August 15, 2018 Electronics & EW, Navy Comments Off on DARPA’s TEAC program developed phased-array sonar technology for Unmanned Underwater Vehicles (UUW or UUV) to establish a network of distributed sonars for Anti Submarine Warfare

Sonars are one of the primary systems for detection and tracking of submarines in Anti Submarine warfare. However modern nuclear and diesel electric submarines have become very stealthy and quiet. Another challenge is diesel-electric submarines operating in littoral waters which generate high false alarm rates (FAR). One of the ways …

DARPA’s TEE program developing skyrmion based high-density and energy-efficient magnetic information storage devices

August 12, 2018 AI & IT, Material Comments Off on DARPA’s TEE program developing skyrmion based high-density and energy-efficient magnetic information storage devices

In magnetic memories, information (for example, a collection of bits) is stored as clusters of spins, which are either an up or a down (or put differently, a one or a zero). These spin clusters, which form the basis of magnetic memories, become less stable when reduced in size. Magnetic …