The Deelen Infrasound Array for Recording Sonic Booms and Events of CTBT Interest
نویسندگان
چکیده
منابع مشابه
Seismic detection of sonic booms.
The pressure signals from a sonic boom will produce a small, but detectable, ground motion. The extensive seismic network in southern California, consisting of over 200 sites covering over 50000 square kilometers, is used to map primary and secondary sonic boom carpets. Data from the network is used to analyze three supersonic overflights in the western United States. The results are compared t...
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The Royal Netherlands Meteorological Institute (KNMI) monitors infrasound in the Netherlands with a series of microbarometer arrays. Infrasound is inaudible sound; its lower frequency cut-off is limited by the thickness of the atmosphere. The KNMI has developed a microbarometer capable of measuring infrasound between 500 seconds and 40 Hz. Wind noise reduction is of major concern in infrasound ...
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Eight male subjects in each of three age groups (21-26, 40-45, 60-72 years) slept in pairs in the CAMI sonic boom simulation facility for 21 consecutive nights. The first five nights were used to acclimate the subjects (nights 1 and 2) and to obtain Baseline data (nights 3-5); the 12 subsequent nights (Boom) involved the hourly presentation of simulated sonic booms at an overpressure level of 1...
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15 صفحه اولstudy of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
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ژورنال
عنوان ژورنال: Journal of Low Frequency Noise, Vibration and Active Control
سال: 2000
ISSN: 1461-3484,2048-4046
DOI: 10.1260/0263092001492886