Results 251 to 260 of about 5,564 (314)
Utilizing geophysical methods for assessing groundwater resources in the Dijil River Catchment, Northwestern Ethiopia. [PDF]
HeliyonGetachew A, Abdulkadir YA.
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The Journal of the Acoustical Society of America, 1979
An audible tone depth sounder indicator apparatus changes the repetition rate of its audio output to indicate deviation in actual water depth from a selected reference depth. A change in tone of the audible output distinguishes positive and negative deviations from the reference depth, and there is no audible signal when actual depth equals the ...
Parvin Riddle, Christopher I. Reynolds
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An audible tone depth sounder indicator apparatus changes the repetition rate of its audio output to indicate deviation in actual water depth from a selected reference depth. A change in tone of the audible output distinguishes positive and negative deviations from the reference depth, and there is no audible signal when actual depth equals the ...
Parvin Riddle, Christopher I. Reynolds
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The British Journal of Aesthetics, 2000
Etude du probleme de la profondeur en musique, a travers une comparaison de la perspective particuliere des arts de la representation avec la perspective generale de la phenomenologie de ce qui est cache. Examinant la definition de la musique pure ou absolue chez P. Kivy, l'A. etudie les differentes caracteristiques de la profondeur: celles de l'action
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Etude du probleme de la profondeur en musique, a travers une comparaison de la perspective particuliere des arts de la representation avec la perspective generale de la phenomenologie de ce qui est cache. Examinant la definition de la musique pure ou absolue chez P. Kivy, l'A. etudie les differentes caracteristiques de la profondeur: celles de l'action
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Correlation Signal Processing for Depth Sounding
Navigation, 1970Abstract : Replica correlation acoustic depth sounders have several significant advantages over conventional system. Although development has been primarily oriented toward bathymetric survey missions, replica correlation systems can provide significant improvements for both deep submersibles and support ships.
GEORGE J. MOSS, GEORGE M. WALSH
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Verbal read-out depth sounding system
The Journal of the Acoustical Society of America, 1981ABSTRACT OF THE DISCLOSURE A system for measuring distance to an object. The system comprises a device for producing a high frequency sound impulse. There is a receiver for a high frequency echo sound impulse reflected from the object. A depth clock is connected to clock a counter.
Frederick J. Welland, Edward C. Cairns
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Marine depth sounding apparatus
The Journal of the Acoustical Society of America, 1981A marine depth sounding apparatus including a floatable housing carrying a sonic transducer for emitting sound waves toward the bottom of a body of water and for detecting the reflections of such sound waves, and a sound transmitter for emitting an audible signal when the information provided by the sonic transducer indicates that the depth of the ...
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ELECTROMAGNETIC DEPTH SOUNDING EXPERIMENT*
Geophysical Prospecting, 1977AbstractAn electromagnetic frequency sounding experiment with a rigid horizontal transmitter coil carrying a stabilized oscillating current was carried out in South Tunesia.The field data were interpreted in terms of the mutual impedance ratio in the horizontal coils system.
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