This type of passive safety system may sound simple.
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This approach is described as a "passive" system because once initial conditions are set inside the flask, a continuing presence of helium and good insulation is all that is required to maintain those conditions.
The new Generation III reactors such as the AP1000 have a simplified "passive" cooling system where the water circulates by natural convection with no pumping required.
Social Security Secretary Alistair Darling said the government was moving away from having a "passive" welfare system to an "active" one capable of responding to more flexible work patterns.
Pragma, an independent trading boutique which develops trading algorithms and provides consulting and guidance for buy-side firms, has developed a quantitative model and supporting smart-routing system for passive limit orders that it says significantly improves all-in performance.
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Cadillac superserves drivers in a hurry with its optional Easy Key system, enabling passive vehicle and trunk entry and keyless ignition via a personalized keyless fob.
Each speaker in this system has a tweeter, woofer and four-inch passive bass radiator on the back that moves a surprising amount of air.
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The stereo unit is built around a two-way system featuring a soft dome tweeter and a powerful compact woofer loaded by a passive radiator, for each channel.
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The system Google is likely to unveil is known within the technology and music industries as a "passive" locker.
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