Ventilation can involve either 100 percent fresh air in which outside air enters and leaves the cabin in a single pass or a system in which various fractions of air are recirculated from the aircraft cabin and mixed with fresh air.
Tests after the tragedy revealed that the sudden lurch of the vessel was caused by air in the steering system.
Belarus experts to help build new air defense system in Venezuela.
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They also noted the deployment of Russia's most advanced S-400 air defence system in Belarus and a parallel drill conducted by the Strategic Rocket Forces, the guardians of the Kremlin's nuclear arsenal.
The move was first suggested ahead of the dismantling of the island's air raid siren system in 2010.
If there was a failure in the air supply system then the pressure would decrease more slowly but still eventually match the outside air pressure.
Under an SMS, any change in the air traffic system that could have a safety impact needs to be rigorously analyzed for hazards, the risks of those hazards thoroughly evaluated and the risks eliminated or mitigated to an acceptable level.
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What's more, the Patuxent River is only 75 yds. away, and the fish--with an air sac in its digestive system that allows it to absorb oxygen, and the ability to flop its way across small stretches of muddy land--could soon wriggle into the nation's waterways.
That is the site in Moorestown, New Jersey where the Navy tests the radars for its Aegis combat system, the most capable air- and missile-defense system in the world.
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But it is notoriously ill-suited to high-tech industries that have to tailor each item to a customer's specific needs (as in a data-switching centre or air-traffic-control system) or in which it is crucial that thousands of interrelated components all work correctly together (as in a rocket vehicle).
"Weather is the great equalizer in the air traffic control system, " Church said.
Apparently there was an air bubble somewhere in their fuel system that was turning this rather simple routine into an all-day affair of filling up and emptying out jerry cans.
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The report calls for accelerating the use of the global positioning satellite system (GPS) in U.S. airspace and ultimately linking GPS and the air traffic control system to provide better and safer separation for planes flying in the United States.
Actual flight performance has gotten more unpredictable because of problems in the air-traffic control system.
Closer to home, airlines have struggled this week with delays caused by a slowdown in the federal air traffic control system.
One of their demands that I can hardly argue with, other than on a cost basis, seeks air conditioning in every classroom in the system.
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The story of the American West is in part the story of advances in technology and transportation, including air conditioning and the highway system, which made it possible for people to live comfortably in more places.
But during the recession, the nation's aging air traffic system has enjoyed a reprieve in the form of sagging ridership.
There are still many details up in the air regarding the new healthcare system, and Pfizer and other drug companies may be affected on way or another.
For some airlines, longer scheduled times for flights reflects the reality of inefficiency in the nation's air travel system, which often can't handle the volume of planes without delay, especially when bad weather hits.
Smith says that by subcontracting some of the work abroad--for example, the intake manifold in a car's air system--these contractors can add 20 points to that gross margin, and that's after paying Smith his fee of 5% to 7% of the foreign invoices.
Dr Sobel and his team then developed a system for measuring changes in air flow caused by sniffing.
How in the world can our air traffic control system survive if air controllers are working ten percent fewer hours?
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The system also pumps in more air every 30 seconds for three minutes, just in case debris or a branch punctures a hole in the bag.
Recently reading that companies that make an aroma type fragrane that emits fragrance into the air system are thinking of putting them in hospitals, etc.
In a presentation at the Black Hat and Defcon security conference in July, for instance, French security researcher Andre Costin presented vulnerabilities in the next-generation air traffic control system known as ADS-B that he said would allow a hacker with a software-defined radio to track and even spoof planes in the sky, potentially creating dangerous distractions for pilots.
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An innovative air-conditioning system circulated cool breezes through grills in the ceilings and floors.
"If they go ahead with this the UK will be the only country in the world to privatise its air traffic control system, " he added.
It's airlines versus corporate jets in a Capitol Hill dogfight over the air traffic control system.
There is not one case of transmission on our sardine-packed public-transport system or through the air-conditioning systems in office buildings.
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