According to the University of Maryland’s Global Terrorism Database, there were a total of 143 attacks – 35 biological, 95 chemical, and 13 radiological – using CBRN weapons across the world from 1970 to 2014. The relative ease with which…
Underwater communication is vital for undersea exploitation and modern communication. Conventional ways which employ acoustical technique for underwater communication have their drawbacks including high path loss, narrow bandwidth, high bit error rate, among which unconditional security is more demanding due to commercial and…
Metamaterials are artificially structured materials designed to control and manipulate physical phenomena such as light and other electromagnetic waves, sound waves and seismic waves in unconventional ways, resulting in exotic behavior that’s not found in nature. They are predicted to…
Nuclear power—with its high energy density and low carbon footprint—is a source with which the international community has decades of experience. However, the challenges that come along with the technology have kept it from becoming a more dominant factor in…
Alexander Graham Bell discovered photoacoustics by accident when he was working on the development of the photophone, a followup to his recently developed telephone that operated via modulated sunlight instead of electricity. You would operate a photophone by speaking into its…
Gallium nitride (GaN) is hot. Even hotter is a race to integrate GaN with other materials to boost GaN’s performance further. The power electronics industry has seen the theoretical performance limit reached by silicon MOSFETs and now needs to…
Although nuclear weapons have not been used in conflict for decades, the risk of their use persists. Around the world, countries are still building and modernizing nuclear arsenals. Russia, US and China are rapidly upgrading and modernizing their strategic triad.…
Understanding the complex and increasingly data-intensive world around us relies on the construction of robust empirical models, i.e., representations of real, complex systems that enable decision makers to predict behaviors and answer “what-if” questions. Empirical models lie at the heart…
The Department of Defense’s (DoD) mission is to provide the military forces needed to deter war and ensure our nation’s security. The DoD now recognizes that data is a strategic asset that must be operationalized in order to provide a…
A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques. The database management system (DBMS) is the software that…