GPS has become ubiquitous technology that provides real-time positioning, navigation and timing (PNT) data in cars, boats, planes, trains, smartphones and wristwatches, and has enabled advances as wide-ranging as driverless cars, precision munitions, and automated supply chain management. Phones and other GPS-enabled devices pinpoint your location on Earth by contacting …

SMAs are materials that can be deformed at low temperature and recover their original shape upon heating. Shape memory alloys (SMAs) belong to a class of shape memory materials (SMMs), which have the ability to ‘memorise’ or retain their previous form when subjected to certain stimulus such as thermo mechanical …

The most important element of space is geosynchronous orbit, a circular orbit 22,300 miles above the planet where satellites appear to be stationary above the surface of the earth. British science fiction writer, futurist and inventor Arthur C. Clark mathematically determined the orbit in 1947, the general said.   The …

Ladakh accounts for more than two-thirds of the land area of the Indian state of Jammu & Kashmir. As a high altitude cold desert, though, it hosts only about 5% of the state’s population. With the mercury dipping to minus 20 degrees Celsius or lower during winter nights, and about minus …

All modern forces depend on unimpeded access to, and use of, the EM spectrum in conducting military operations. Therefore, there is a requirement to gain and maintain an advantage in the electromagnetic spectrum by countering adversary’s systems and protecting one’s own systems. Adversary can disrupt and degrade the navigation systems …

Because of higher density chips, the design of more compact electronic components makes heat dissipation even more difficult. All advanced electrical or electronic devices are facing heat management challenges due to the increased levels of heat generation and the reduction in the surface area for heat rejection or dissipation. So …

Autonomous systems are increasingly critical to several current and future Department of Defense (DoD) mission needs. For example, the U.S. Army Robotics and Autonomous Systems (RAS) strategy report for 2015-2040 identifies a range of capability objectives, including enhanced situational awareness, cognitive workload reduction, force protection, cyber defense, logistics, etc, that …

“Electronics have dramatically changed the way we live, conduct business, communicate, and educate. Visions of the future foretell of ubiquitous computing and sensing. However, the environments in which electronics can reliably operate are limited. In consumer applications, typical operating temperatures range from -40° to 85°C. The “wider” military temperature range …

The incidents of cyberwarfare are ever increasing, targeting more and more countries and becoming legitimate. Part of the Ukrainian power grid was attacked by hackers, causing blackouts; US accused Iranians of attempting to hack into the control-system of a dam.  Russia was also suspected for cyber-attack on Turkey following the …

To date, different types of carbon and alloy steels have proved to be the main materials of choice for naval ship construction around the world. While composites, titanium and aluminium alloys have been utilized for making hulls of smaller vessels such as patrol boats, these materials do not meet the …