Ground troops often want to watch for threats from fairly limited areas, but ships at sea need to monitor huge expanses for long periods. The U.S. Naval Research Lab. is exploring ways to continuously monitor large spaces at fairly low costs. Goodrich Corp. has been given a contract to provide CA-247 wide-area airborne persistent surveillance sensors that help monitor oceans or provide situational awareness to ground troops in urban environments. The CA-247 sensor's infrared optics are stabilized for image clarity, also offering software that helps human observers pinpoint potential threats.
The implementation of a new diesel fuel standard in the US has considerably improved the environmental performance of diesel vehicles. The Environmental Protection Agency (EPA) says that the new ultra-low sulfur diesel (ULSD) fuel has combined with other improved technologies to reduce diesel's particulate matter (PM) emissions by 99%.
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