Distribution of the Organ-Pipe Diatom, Bacillaria paradoxa
نویسندگان
چکیده
منابع مشابه
Anatomy of a Pipe Organ:
This brief overview of fundamental acoustical principles of a pipe organ is presented as a teaching module for the inquiring young student in the music education classroom. This material is intended to supplement an interactive, visual tour and demonstration of a functioning pipe organ. It is designed to illustrate basic acoustical principles that influence the construction and response of vari...
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The admittance o• a turbulent jet as the generator in organ flue pipes was investigated experimentally with respect o the relevant parameters, that is, the frequency, the jet effiux velocity, the mouth end-correction, and the jet tip deflection at the cdge. First, an experiment was performed using a jet with a pulsating velocity to drive a pipe to isolate and identify the various drive mechanis...
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A highly efficient frequency-controlled sound source based on a tunable high-Q underwater acoustic resonator is described. The required spectrum width was achieved by transmitting a linear frequency-modulated signal and simultaneously tuning the resonance frequency, keeping the sound source in resonance at the instantaneous frequency of the signal transmitted. Such sound sources have applicatio...
متن کاملSpectral correlates of timbral semantics relating to the pipe organ
This paper explores whether words used to describe pipe organ ensembles have correlation with specific spectral features. Similar previous work has concentrated on single pipes in anechoic conditions (e.g. Rioux, 2001). This work examines pipe organ ensembles as a cohesive whole. Ninety-nine English-speaking subjects were asked to describe recordings of pipe organs. From the many timbral adject...
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Infected pancreatic necrosis is a severe complication of acute pancreatitis; this complication is the major cause of death. We used the 'pipe-organ' -like retroperitoneal drainage, which is usually used in the management of open pelvic fracture, successfully in a patient with severe infected pancreatic necrosis. This procedure can avoid gastrointestinal fistula and local bleeding without necess...
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ژورنال
عنوان ژورنال: Nature
سال: 1923
ISSN: 0028-0836,1476-4687
DOI: 10.1038/111015b0