But the city of today is very different from the one of the late 1960s and â70s, when dictates to achieve racial balance first prompted âwhite flightâ from the public schools. From 1967 to 1974, the percentage of white students in the cityâs public schools plunged to 52 percent from 72 percent. By 1977, black students outnumbered whites; by 2009, Latinos outnumbered blacks.
It allows them to remotely halt high-speed hunt. Remote vehicle shutdown auto technology. In 2009, General Motors planned to equip this system in 1.7 million new cars that allows pursuing offices to request that engines of stolen cars be remotely switched off with the use of OnStar mobile communications system.
For air intake shut down, two distinct types are commonly utilized, i.e. butterfly valves and swing gate or guillotine valves. Because diesel engines ignite fuel using compression instead of an electronic ignition, shutting off the fuel source to a diesel engine will not necessarily stop the engine from running.