Results 201 to 210 of about 23,196 (253)
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2018
Wind instruments driven by a constant pressure air reservoir produce a steady oscillation and associated sound waves. This self-sustained oscillation can be explained in terms of a lumped element feedback loop composed of an exciter, such as a reed-valve or an unstable jet, coupled to an acoustical air column resonator, usually a pipe.
Benoit Fabre +2 more
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Wind instruments driven by a constant pressure air reservoir produce a steady oscillation and associated sound waves. This self-sustained oscillation can be explained in terms of a lumped element feedback loop composed of an exciter, such as a reed-valve or an unstable jet, coupled to an acoustical air column resonator, usually a pipe.
Benoit Fabre +2 more
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Abstract The Greek word for wind instruments—empneusta, lit. “instruments that are blown into”— accurately describes the basic principle at work: air (pneuma) enters into (en) the instrument and sets an air column in motion, producing a vibration.
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The Journal of the Acoustical Society of America, 1990
A musical instrument which may be used to play a complete major scale without coordinated mouth and finger operations is formed as two or three horns having a single, shared mouthpiece, and pitched one or two half tones apart. One or both the of the horns may have one or two ports to enable one to play a complete major scale and other scale notes.
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A musical instrument which may be used to play a complete major scale without coordinated mouth and finger operations is formed as two or three horns having a single, shared mouthpiece, and pitched one or two half tones apart. One or both the of the horns may have one or two ports to enable one to play a complete major scale and other scale notes.
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2021
So until now, we have discussed wind instruments with a single reed, like the saxophone. The clarinet is very much alike in terms of the driving mechanism we are interested in. Basically, there are two other instrument families, the brass instruments and flutes or organs.
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So until now, we have discussed wind instruments with a single reed, like the saxophone. The clarinet is very much alike in terms of the driving mechanism we are interested in. Basically, there are two other instrument families, the brass instruments and flutes or organs.
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JAMA, 1961
To the Editor:— Dr. Henry D. Friedman's letter to the editor ( JAMA 177 :276 [July 29] 1961) contained a false premise; that is, that blowing a wind instrument will cause increased pressure in the nasopharynx and thus produce a Valsalva maneuver. In blowing an instrument, the palate closes off the nasopharynx and thus the increased pressure is not ...
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To the Editor:— Dr. Henry D. Friedman's letter to the editor ( JAMA 177 :276 [July 29] 1961) contained a false premise; that is, that blowing a wind instrument will cause increased pressure in the nasopharynx and thus produce a Valsalva maneuver. In blowing an instrument, the palate closes off the nasopharynx and thus the increased pressure is not ...
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JAMA, 1961
To the Editor:— Dr. Alvan L. Barach's superb and erudite answer in the Questions and Answers section, on page 398 ofThe Journalof April 29, 1961, on asthma and wind instruments is fine as far as it goes. However, one important aspect is not mentioned.
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To the Editor:— Dr. Alvan L. Barach's superb and erudite answer in the Questions and Answers section, on page 398 ofThe Journalof April 29, 1961, on asthma and wind instruments is fine as far as it goes. However, one important aspect is not mentioned.
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Institutional constellations and policy instruments for offshore wind power around the North sea
Energy Policy, 2023Herman Lelieveldt +2 more
exaly