Results 201 to 210 of about 10,609 (238)
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1989
Aircraft Noise traces the origins of this problem to the introduction of the jet engine into the airline fleet in the late 1950s and describes the legal restrictions now placed on the industry. It explains the derivation of the special noise units and assessment scales now used around the world; noise exposure modeling and forecasting; the major ...
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Aircraft Noise traces the origins of this problem to the introduction of the jet engine into the airline fleet in the late 1950s and describes the legal restrictions now placed on the industry. It explains the derivation of the special noise units and assessment scales now used around the world; noise exposure modeling and forecasting; the major ...
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Aircraft noise exposure and hypertension
Occupational and Environmental Medicine, 2016Increasing traffic by all modes of transport has led to a general rise in noise pollution. The European Environment Agency recently compared data on aircraft noise between 2007 and 2012, and observed that in Europe there had been a general increase in people exposed to aircraft noise.1 Over the last decade, a number of epidemiological studies have ...
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Airframe Noise-The Next Aircraft Noise Barrier
Journal of Aircraft, 1974Progress in quieting the commercial aviation fleet has been achieved by reducing the noise generated by jet engines. Recent tests have indicated that noise produced by airflow over aircraft surfaces (lifting surfaces, landing gear, flaps, and cavities) is only 8 to 10 EPNdB below certification requirements for current aircraft and will likely be a ...
H. MORGAN, J. HARDIN
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Aircraft Noise Indexes for Effect Oriented Noise Assessment
Acta Acustica united with Acustica, 2010This article discusses aircraft noise effect assessment with noise effect indexes, such as have recently been developed for noise monitoring purposes at the airports of Zurich and Frankfurt. Aircraft noise indexes are noise assessment instruments that express the overall effects of aircraft noise as a single figure which reflects the total amount of ...
Brink, M +3 more
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Aircraft magnetic noise sources
8th International Congress of the Brazilian Geophysical Society, 2003Aeromagnetic aircraft and data acquisition systems generate magnetic interference which can effect the quality of the data collected. Many people believe that traditional aircraft compensation, which models the permanent, induced, and eddy-current sources, can remove all of this interference.
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The Psychological Cost of Aircraft Noise for Children*
Zentralblatt für Hygiene und Umweltmedizin, 1999Psychological effects of aircraft noise exposure on children have only recently been addressed in the literature. The current study took advantage of a natural experiment by the opening of a new airport, exposing formerly nonexposed children to low aircraft noise. In this prospective longitudinal investigation, which employed nonexposed control groups,
M, Bullinger +4 more
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Tracking Radio Noise on Aircraft
Transactions of the American Institute of Electrical Engineers, 1950RADIO NOISE INTERFERENCE reduction methods for use in aircraft have not received adequate attention in recent years. Almost complete reliance is placed on equipment covered by military specifications, in spite of the fact that little or no equipment meeting the specifications is available.
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Noise transmission into a light aircraft
16th Aerospace Sciences Meeting, 1978An analytical study on noise transmission into a cabin of a twin engine G/A aircraft is presented. The solution of the governing acoustic-structural equations of motion is developed utilizing modal expansions and a Galerkin type procedure. The exterior noise pressure inputs are taken from available experimental data.
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