Vol. 29 No. 1 (1998)

Published: 1998-05-22

WAVE PROPAGATION AND DIFFRACTION

Modelling techniques of ultrasonic wave propagation in solids

V. Daniulaitis, R. Barauskas

7-11
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Beamforming by means of 2D phased ultrasonic arrays

R. Kazys, L. Jakevicius, L. Mazeika

12-15
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Sound power and sound wave radiation by a piston in a curved duct

D. Guzas, E. Jotautiene

16-19
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Estimation of directivity patterns of two rectangular acoustic radiators oriented at various angles

V. Minialga, A. Petrauskas

20-23
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PHYSICAL ACOUSTICS

Velocities of surface acoustic waves in proton exchanged lithium niobate with different HxLi1-xNbO3 phases

D. Ciplys, R. Rimeika, Yu. V. Korkishko, V. A. Fedorov

24-28
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ULTRASONIC INSTRUMENTS

Ultrasonic data acquisition: sampling frequency versus bandwidth

L. Svilainis, V. Dumbrava

29-33
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Ultrasonic NDE system: the hardware concept

L. Svilainis, V. Puodziunas

34-40
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Wideband piezotransducers for the monitoring of two - phase flows

P. B. Milius, D. Jucius

41-43
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About the system - errors of the acoustical ring-type resonator

V. Giedraitiene, V. Sukackas

44-45
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