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At 18th-century Holkham Hall, service and secondary wings (foreground) clearly flank the mansion and were intended to be viewed as part of the overall facade.. Servants' quarters, also known as staff's quarters, are those parts of a building, traditionally in a private house, which contain the domestic offices and staff accommodation.
Prairie-Masker is a radiated noise reduction system fitted to some [clarification needed] western warships, including the Oliver Hazard Perry-class frigates, Spruance and Arleigh Burke-class destroyers, and the Ticonderoga-class cruisers of the US Navy.
The New York City Subway is a rapid transit system in the New York City boroughs of Manhattan, Brooklyn, Queens, and the Bronx.It is owned by the government of New York City and leased to the New York City Transit Authority, [14] an affiliate agency of the state-run Metropolitan Transportation Authority (MTA). [15]
Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control or ANC.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.
Architectural acoustics noise control practices include interior sound reverberation reduction, inter-room noise transfer mitigation, and exterior building skin augmentation. In the case of construction of new (or remodeled) apartments , condominiums , hospitals , and hotels , many states and cities have stringent building codes with ...
As planned, a gradual reduction in the output of the power unit began at 01:06 on 25 April, and the power level had reached 50% of its nominal 3,200 MW thermal level by the beginning of the day shift. [20]: 53 The day shift performed many unrelated maintenance tasks, and was scheduled to perform the test at 14:15.
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