Hydroacoustics, tom 11

1. Artificial neural networks for interpolation and identification of underwater object features.
2. Modeling of the finite amplitude plane wave propagation in non-dissipative medium.
3. Contribution of the IMS global network of hydroacoustic stations for monitoring the CTBT.
4. 25 years with sonar systems.
5. A review of acoustic techniques for habitat mapping.
6. Laboratory model of high frequency sonar.
7. Laboratory modelling and acoustic diagnostics of hydrodynamical processes.
8. Compression algorithms for multibeam sonar records.
9. Ferroelectric and ferroelectromagnetic ceramics in a view of possibilities to be used in electroacoustic.
10. The acoustic excitation of newly-formed bubbles.
11. Acoustic method of valuation of ships' drive mechanism operation.
12. Vibration and radiated noise of a small ship.
13. Acoustical monitoring of fish at an electric barrier.
14. Selected results of the parametric soundings of the Gdańsk Bay.
15. Data processing of broad-band signals received by multi-element cylindrical transducer.
16. Design and implementation FIR filters using FPGA.
17. Modelling multistatic target detection in shallow sea.
18. SHL-100/T SONAR - Results of the harbour and sea trials.
19. Determination of the B/A of biological media by measuring and modeling nonlinear distortion of pulsed acoustic wave in two-layer media.
20. The development of a passive acoustic device for monitoring the effectiveness of shockwave lithotripsy in real time.
21. Experimental evidence for enhanced target detection by sonar in bubbly water.
22. Towards field measurements of populations of methane gas bubbles in marine sediment: an inversion method required for interpreting two-frequency insonification data from sediment containing gas bubbles.
23. Sounds in space: the potential uses for acoustics in the exploration of other worlds.
24. PC-based high frequency imaging system with coded excitation.
25. The examination of position of ship's noises sources based on hydroacoustics method.
26. Statistical properties of pulse-echo signal backscattered in trabecular bone.
27. Using multibeam echoes in seafloor characterisation and classification.
28. High accuracy hydroacoustic system to study codend model parameters.
29. Propagation of pulsed sound signals on a shelf of free tidal sea: effects from coastal eddies and internal waves.
30. Multitone nonlinear coding.
31. An assessment of cleaning mechanisms driven by power ultrasound using electrochemistry and high-speed imaging techniques.
32. Sources of the variability of acoustic response of clupeoids in the Baltic.
33. Acoustic signal processing in passive sonar system with towed array.
34. The acoustic radiation impedance of a circular membrane vibrating near the three-wall corner.
35. The use of the time reverse acoustics in a shallow sea.
36. Preliminary acoustic research of diving arctic birds.
37. Acoustic studies of the diel migratory behaviour of Baltic fauna.
38. Laboratory to measure directivity characteristics of arrays.
39. Low- and high-frequency elastic scattering analysis of fluid-filled, flat-endcapped cylindrical shells proud on a sandy seabed.
40. Extraction of seabed geomorphologic features of svalbard fjords using high-resolution side scan sonar.
41. Ultrasonic method for relative changes of intima-media thickness measurements in common carotid artery.
42. The influence of the transducer bandwidth and double pulse transmission on the encoded imaging ultrasound.
43. Sound and vibration analysis for 70 m supply vessel in aspect of underwater noise reduction.
44. Active control of a submerged circular plate.
45. Comparison of experimental results and numerical calculations of ultrasonic waves scattering on a model of the artery.
46. Ocean average current measurement using acoustic phase monitoring.
47. Kohonen networks as ships classifier.

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