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  Background Music is the combination of music and recorded sounds that have no central melody. This can include noises from a passing breeze, talking birds, waves breaking on the shore, or anything else. Such music is often used in conjunction with other elements to create a more dramatic effect, such as music and a dramatic framing device, or an element of special effects. In the same way as using music for a feature film would use a specific sequence of shots with a specific theme, one can use such music to help give the videos a certain feel or mood. The most common types of such music for videos are used for action, romance, horror, comedy, suspense, and many others.   Background music is a subset of "Business Audio" - a sub-group within the larger category of Music that often includes Performance, Post-production, Sound effects, and Game Audio. Such music is the non-performance elements within a recording that do not have an impact on the outcome of the activity that t...

   Air Cargo Security and Screening System  Following the September 11, 2001 attack on the World Trade Center, the need for air cargo security and screening systems became even more apparent. Physical inspection and canine methods (detection through trained dogs) are common security and screening practices in this area, but they are not error-free. New technologies in this area reduce potential terrorist threats and ensure safety by tracking explosives inside air cargo. Through known shipper programs, the air cargo industry and international and national regulatory authorities have been making continuous efforts to increase the screening levels of air cargo with the least amount of shipping hindrance. These programs enable well-known shippers to screen their own cargo and ensure that it meets a common set of standards.   The enhanced security programs have some limitations, such as the industry's large size and the high costs associated with the enhancements. However...