Cybercrime is the greatest threat to every company in the world, and one of the biggest problems with mankind. Beyond a nefarious hobby, cybercrime has become a way for cybercriminals to earn a living. While it remains underground, it is a business nonetheless; attackers cooperate, and work to maximize profits …

High frequency (HF) band covering frequency range between 2 to 30 MHz provides over-the-horizon communications with ranges over thousands of kilometers through skywave propagation. It offers an alternative to satellite communications (SATCOM) for many commercial and military applications that requires non-line-of-sight communications.   High Frequency (HF) band  has been considered …

Carbon nanotubes (CNTs) are hollow cylindrical tubes formed by rolling a sheet of carbon atoms arranged in a hexagonal ring, as in a sheet of graphite, either in monolayer (single walled nanotube, SWCNT) or multilayer (multi-walled nanotube, MWCNT) form. Their diameter may  range from 0.7 (SWCNT) to   50  naometers …