Research Papers
| A model of piston impact and vibration for internal combustion engine noise reduction | |
| A. F. Seybert, J. F. Hamilton, P. A. Hayes | 89-110 |
| Noise prediction on ships | |
| Edward Szczerbicki, Andrzej Szuwarzyński | 111-122 |
| On the influence of the nozzle external configuration on the radiated screech and the decay of supersonic jets* | |
| Giovanni Maria Carlomagno, Carmine Ianniello, Paolo Vigo | 123-134 |
| The blurred cut-off frequency of acoustic horns | |
| Tomasz Zamorski | 135-146 |
| Quantitative image indices in ultrasonic diagnostics of inbomogeneous materials | |
| Robert C. Chivers | 147-162 |
| The investigation of relaxation processes in chosen liquid crystals by ultrasonic and dielectric methods | |
| Adam Drzymała | 163-172 |
| Information content as a parameter of acoustical hologram reconstructibillty | |
| Jan Kaluzny, Jerzy K. Zieniuk | 178-178 |
| The molecular characteristics of oil fractions determined from ultrasonic velocity measurements | |
| Wiesław Szachnowski, Bogdan Wiślicki | 179-20t |
Letter to the Editor
| The Journal of the Acoustical Society of Japan (E) | |
| Ryszard Gubrynowicz | 215 |
Chronicle
| XXVII open seminar on acoustics, Puławy, 15-19 October, 1980 | |
| Jerzy Etienne, Witold Straszewicz | 205-214 |