Vol. 27 No. 1 (1997)

Published: 1997-06-26

ULTRASONIC IMAGING AND NON-DESTRUCTIVE TESTING

Noise robust one-dimensional deconvolution of medical ultrasound images

G. V. Frolova, T. Taxt

7-10
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Reconstruction of ultrasonic wavefronts from the field of the circular transducer

E. Jasiuniene, L. Mazeika

11-15
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Ultrasonic non-destructive testing system of journal bearings

R. Kazys, L. Mazeika, A. Voleisis, R. Sliteris, K. Kundrotas, V. Augutis

16-18
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ULTRASONIC MEASUREMENTS

Measurement of impulsive ultrasonic fields generated by an electrical discharge

R. Kazys, R. Sliteris, L. Mazeika

19-21
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The influence of a flow profile and inhomogeneity of medium on measurements of flow parameters

L. Jakevicius, O. Tumsys

22-23
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A computer modelling of the quality measurements of acoustical multiresonance systems

V. Giedraitiene, V. Sukackas

24-26
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Investigation of a parametric measuring element of speed of sound in air with the nickel resistance thermometer

J. Ramanauskas

27-32
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WAVE PROPAGATION AND DIFFRACTION

Ultrasonic near field in lossy media: method of simulation

A. Lukosevicius, R. Jurkonis, R. Jurkonis

33-37
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Plane wave diffraction in the curved section of the waveguide with a rectangular cross-section

D. Guzas, E. Jotautiene

38-40
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Calculation of acoustic field using holographic measurements of the radiator's vibrations

V. Minialga, S Sajauskas

41-44
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SIGNAL PROCESSING

Preshaping of excitation signal of ultrasonic transducer by using the inverse filter

A. Vaiciunas, B. Mandersson

45-47
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PHYSICAL ACOUSTICS

Complex formation between Ce(III) and NO3- or SO4-2 in aqueous salt solutions

B. Voleisiene, A. Voleisis

48-50
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The research of complex fertilizers by ultraacoustic method

V. Janenas, O. Majauskiene, V. Kasperiunas

51
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