机构:
KTH, Dept Speech Mus Hearing, Stockholm, SwedenKTH, Dept Speech Mus Hearing, Stockholm, Sweden
Granqvist, Svante
[1
]
Sundberg, Johan
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机构:KTH, Dept Speech Mus Hearing, Stockholm, Sweden
Sundberg, Johan
Lundberg, Jon O.
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机构:KTH, Dept Speech Mus Hearing, Stockholm, Sweden
Lundberg, Jon O.
Weitzberg, Eddie
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机构:KTH, Dept Speech Mus Hearing, Stockholm, Sweden
Weitzberg, Eddie
机构:
[1] KTH, Dept Speech Mus Hearing, Stockholm, Sweden
[2] Karolinska Inst, Dept Physiol & Pharmacol, Stockholm, Sweden
来源:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
|
2006年
/
119卷
/
05期
关键词:
D O I:
10.1121/1.2188887
中图分类号:
O42 [声学];
学科分类号:
070206 ;
082403 ;
摘要:
The gas nitric oxide (NO) is generated in the human paranasal sinuses and can be measured in nasally exhaled air. During humming, a marked increase in exhaled NO content has been observed. The acoustic phenomenon responsible for this evacuation of NO gas from the sinuses was analyzed. A tube model was constructed with a syringe containing NO gas attached radially. This tube was excited with an air stream modulated by a sine wave. Increased evacuation was observed whenever the syringe was not located at a pressure node of the exciting sine wave. A computer model of the system showed a good matching of observed pressure versus frequency data in the syringe resonator. The results thus suggest that the alternating pressure in the nasal cavity forces the air plug in the ostium of the paranasal sinus resonators to vibrate, thus expelling from the cavity NO gas, which is transported to free air by the exhalatory air stream. (c) 2006 Acoustical Society of America.
机构:
Woodland Hills Med Ctr, So Calif Permanente Med Grp, Dept Pathol, Woodland Hills, CA USAWoodland Hills Med Ctr, So Calif Permanente Med Grp, Dept Pathol, Woodland Hills, CA USA
机构:
Fdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, ItalyFdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, Italy
Bossi, Paolo
Farina, Davide
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机构:
Univ Brescia, Dept Radiol, Brescia, ItalyFdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, Italy
Farina, Davide
Gatta, Gemma
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机构:
Fdn IRCSS Ist Nazl Tumori, Evaluat Epidemiol Unit, Milan, ItalyFdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, Italy
Gatta, Gemma
Lombardi, Davide
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机构:
Univ Brescia, Dept Otorhinolaryngol, Brescia, ItalyFdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, Italy
Lombardi, Davide
Nicolai, Piero
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机构:
Univ Brescia, Dept Otorhinolaryngol, Brescia, ItalyFdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, Italy
Nicolai, Piero
Orlandi, Ester
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机构:
Fdn IRCCS Ist Nazl Tumori, Radiotherapy Unit 2, Milan, ItalyFdn IRCCS Ist Nazl Tumori, Head & Neck Med Oncol, Via Venezian 1, I-20133 Milan, Italy
机构:
Department of Otolaryngology, Naval Medical Center San Diego, San Diego, CA 92134-5000Department of Otolaryngology, Naval Medical Center San Diego, San Diego, CA 92134-5000
Capra G.G.
Carbone P.N.
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机构:
Department of Anatomic Pathology, Naval Medical Center San Diego, San Diego, CADepartment of Otolaryngology, Naval Medical Center San Diego, San Diego, CA 92134-5000
Carbone P.N.
Mullin D.P.
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机构:
Department of Otolaryngology, Naval Medical Center San Diego, San Diego, CA 92134-5000Department of Otolaryngology, Naval Medical Center San Diego, San Diego, CA 92134-5000