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| Proceedings of the Conference on Noise Suppression NOISE CONTROL 85 | |
| 317-318 |
Research Papers
| Active systems in the vibration control of heavy machine driver's seats | |
| I. BALLO, N. SZUTTOR | 319-326 |
| Comparison of prediction methods for road traffic noise | |
| L. CZABALAY, L. SÁRVÁRI | 327-334 |
| Analysis of directional radiation patterns of a system of flat plane sound sources | |
| Zbigniew ENGEL, Lesław STRYCHNIEWICZ | 335-344 |
| Active noise and vibration control (ANVC): current trends, permanent aims and future possibilities | |
| Maurice JESSEL | 345-358 |
| Sound insulation requirements in office buildings and schools | |
| J. LANG | 357-362 |
| Diagnostics is a proper field for noise control engineers | |
| Richard H. LYON | 363-368 |
| Simple estimation methods for noise reduction by variously shaped barriers | |
| Z. MAEKAWA | 369 -382 |
| Some considerations on common noise criteria | |
| H. MYNCKE | 383-400 |
| Verification tests of a method of determining sound intensity with the application of a two microphone technique | |
| Ryszard PANUSZKA, Jacek CIEŚLIK | 401-410 |
| Reverberation times and reverberation levels | |
| V. M. A. PEUTZ | 411-426 |
| Using the energy accountancy equation to modify punch design in presses | |
| E. J. RICHARDS | 427-438 |
| Acoustic problems in multi-storey residential buildings raised by means of industrialized technology methods | |
| Jerzy SADOWSKI | 447-466 |
Chronicle
| The conference on prospects in modern acoustics education and development (How to teach acoustics?) | |
| A. ŚLIWIŃSKI, B. LINDE | 467 |



