When a small drag was attached to the subject in swimming, its variation was recorded as an analog signal through a force transducer and a tape recorder. With the help of sampling and power spectrum estimation, we analyzed the frequency and amplitude character and pointed out its relationship with the stroke frequency.
Blast impulses of the same origin were recorded on a tape recorder and reproduced by playing back through loudspeaker system to serve as the source of impulse noise.
A microcomputer workstation for log interpretation consists of a microcomputer 386, adigitizer, a tape recorder, a printer, a plotter and a radio teletype for digits. It has been usedfor log data processing in Linpan and Shaghe Areas in Sheng Li Oil Field.
The Interkosmos5 VLF experiment consisted of a spectrum analyser with twelve narrow-band channels and broadband measurements between0.07 and20 kHz using an analogue telemetry with a tape recorder on board.
Experience indicates that when a tape recorder is used for any of these purposes, client responses to the tape recorder can express transference or psychopathology.
Subjects in a second group received noncontingent EMG feedback from a tape recorder but were instructed to use the feedback signal to relax their forehead muscles (single blind).
The authors suggest that use of a tape recorder, earphones, and an anonymous answer sheet contributed to the very high acceptance rate for this sexual behavior survey and enhanced the validity of the responses.
Acoustic impedance changes and hearing threshold shifts after exposure to impulse noise or air-blasts were studied in guinea pigs. Air-blasts were produced by firing of live ammunition in a 100 mm caliber gun, the peak SPL ranging from 172.9 to 190.3 dB for different groups of animals. Each exposure consisted of 7-10 impulses. Blast impulses of the same origin were recorded on a tape recorder and reproduced by playing back through louds...
The sound speed and layer thickness of the sediment in shallow sea whose depth is approximately 40m are measured by the ray parameter In the experiment an explosive source is used with two receiving hydrophones, of which one is fixed in the vicinity of the source and is used for the computation of the starting time of the explosion, whereas the other is used to receive the reflected signals from the bottom and subbottom at various distances. The signals from both hy...
A microcomputer workstation for log interpretation consists of a microcomputer 386, adigitizer, a tape recorder, a printer, a plotter and a radio teletype for digits. It has been usedfor log data processing in Linpan and Shaghe Areas in Sheng Li Oil Field. This paper pres-ents briefly the function, fundamentals and application of the subsystems of theworkstation.