Abstract: Provided is a firearm filtration device that collects hazardous materials expelled by the discharge of a weapon system such as small arms, heavy weapons, and larger platform indirect and direct systems. Said weapon system may include a barrel that is either rifled or smooth bore on the internal diameter of the barrel. Said barrel terminates at the muzzle which expels a plurality of projectiles in addition to hot exhaust gases which include a wide array of hazardous materials. This device, in its various configuration, attaches or may be integrated into the muzzle end of any weapon system for the primary use of trapping and containing the hazardous components and gases expelled.

Abstract: A method, a system, and a computer program product for operating a communication device. A location information of a communication device is received. Based on the location information of the communication device, it is determined whether the communication device and another communication device are co-located. Based on the determination, operation of the communication device is controlled.

Abstract: An energy management system and method can include functions such as monitoring a status of the electrical energy storage device; receiving a first demand from a first power load for electrical power, and determining whether to supply the electrical power to satisfy the first demand from the electrical energy storage device or from one or more power sources connected to the energy management system. The determining can include applying an algorithm to determine a power provision arrangement based on at least one preset criteria. The algorithm can have data input that includes the status of the electrical energy storage device, one or more load characteristics of the first power load and any other loads supplied with electrical power from the energy management system, and one or more source characteristics of each of the one or more power sources. Electrical power can be supplied to the first power load in satisfaction of the first demand and in accordance with the determined power provision arrangement.