Moving boundary problems

developed his 3-D technique so that it is possible to take 2 x 10 4 holograms per second with a total number of eight holograms. The second paper by D.Y. Hsieh (USA) dealt with forced oscillations of non-spherical bubbles. He showed that when the amplitude of the externally applied sinusoidal pressure field is not small, there is a tendency to generate both the sub-harmonic oscillations of the spherical mode, and also surface waves on the bubble. This was also the topic of the next contribution by M. Ceschia (M. Ceschia, A. Francescutte and R. Nabergoj, Italy) which was entitled 'Sub-harmonic and harmonic surface waves on pulsating bubbles'. The sub-harmonic and harmonic thresholds were computed for bubbles within the radii range of 10 -4 cm to 10 -1 cm and it was hoped this would lead to a more realistic evaluation of the transient cavitation threshold. A fascinating paper followed in which L.A. Crum (USA) described, and illustrated by a cine film, a simple method for producing liquid jets in pulsating air bubbles. Small air bubbles produced by a pulsating bubble were seen to grow rapidly and then recombine with the larger bubble giving rise to an intricate display of surface wave formation. The final paper, by V.V. Kuznetsov (V.V. Kuznetsov, V.E. Nakoryakor, B.G. Pokussev and I.R. Schreiber, USSR), was concerned with the propagation of pressure perturbations in a liquid containing gas bubbles. The experiments were carried out in a two-phase shock tube and in addition to signal propagation with the formation of monotonic and oscillatory shock waves, the propagation of signals in the form of solitary waves (solitons) and wave packets was observed experimentally for the first time. The participants in this meeting are particularly grateful to Professor A. Zarembowitch and his colleagues for the excellence of the arrangements and for the use o f poster sessions to alleviate what would have been a very congested programme. The poster sessions were also the means of making a more intimate contact with a number o f contributors which otherwise would have been more difficult. R. W.B. Stephens

New

books

Books listed below are those recently received by the editorial office or those mentioned in advance information from the publishers. Their inclusion here does not prevent them from being reviewed in a later issue.

Medical physics John R. Cameron and James G. Skofronick

rPLENUM/ ULTRASOUND Ultrasound in Medicine " . . . s h o u l d b e c o m e one of the leading c o n t r i b u tions to the development of ultrasonic diagnostics." - - P . N. T. W e l l s , Ultrasound in Biology and Medicine This series, reviewing current methodologies and ad vances, describes the present applications of diagnos tic potentials of ultrasound in the fields of cardiology, obstetrics, gynecology, neurology, abdominal scanning, and ophthalmology.

Volume 4 e d i t e d b y Denis W hite and E. A. Lyons 712 pp., 1978. $71.40/£37.49

Volume 3 edited by Denis W hite and Ross E. Brown Part A: Clinical Aspects 1.238 pp., 1977, $90.00/£47 25

Part B: Engineering Aspects 1.064 pp., 1977, $90.00/£47 25

Volume 2 e d i t e d b y Denis W hite and Ralph Barnes 556 pp.. 1976. $54.00/£28.35

Volume 1 e d i t e d b y Denis W hite 648 pp.. 1975, S66.00/£34.65

Clinical Ultrasound of the Breast b y Toshiji Kobayashi, M.D. This atlas presents a complete study of echopictures and the latest diagnostic techniques. It categorizes visual analyses according to bistabledisplay.greyscale imaging~ and target expansion techniques, stressing the historical background of echographic developments. 190 pp.. illus.. 1978, $27.00/£14.18 Not available from Plenum in the U.K., Europe, and the Middle East (excluding Israel).

Acoustical Holography Recent Advances in Ultrasonic Visualization Volume 7 edited by Lawrence W. Kessler Volume 7 of this widely acclaimed series examines medical applications and systems, innovative Tmaging techniques, lenses, transducers, computer-assisted techniques, and signal processing techniques. 667 pp., 1977, $35.40/£18.59

Acoustic Imaging Cameras, Microscopes, Phased Arrays, and Holographic Systems edited by Glen W a d e "This book is a comprehensive survey of [the] field and pubs together in one text the physical principles, historical development, basic system concepts, instrumentation and experimental results .... should be included in the library of anyone responsible for designing or purchasing new medical diagnostic equipment." --Robert F. Metzker, Journal of Clinical Ultrasound 340 pp., 1976, $39.00/£20.48

John Wiley (1978) xviii + 615 pp, £15.50, $29.00 PLENUM PUBLISHING CORPORATION Moving boundary problems Edited by D.G. Wilson, Alan D. Solomon, Paul T. Boggs

227 West 1 7th Street, New York, N.Y. 10011 In United Kingdom: Black Arrow House, 2 Chandos Road, London NW10 6NR, England

Academic Press(1978) x + 329 pp, £9.75, $15.00 286

ULTRASONICS. NOVEMBER 1978