Steganography is a science of hiding messages into multimedia documents. A message can be hidden in a document only if the content of a document has high redundancy. Although the embedded message changes the characteristics and nature of the document, it is required that these changes are difficult to be identified by an unsuspecting user. On the other hand, steganalysis develops theories, meth...

Controlled Flight into Terrain is one of the major sources of accidents in aviation today. Studies have shown that the use of Terrain Awareness and Warning Systems (TAWS) can decrease the number of such accidents. A problem with current TAWS is that the majority of them use the same display window as other information such as weather, traffic, airport positions, and moving map programs. The amo...