Vol. 33 No. 4(S) (2008)

Articles

• Some Methods of Describing Echolocation Calls of Bats Using Cohen’S Class and Wavelet Algorithms

  Krzysztof HERMAN

  7–12
• Analysis and Modelling of Ultrasonic Pulses in a Biological Medium

  Krzysztof J. OPIELIŃSKI

  13–19
• Golay Code Excitation of Ultrasonic Transducers with Different Backing

  Wojciech SECOMSKI, Ihor TROTS, Andrzej NOWICKI

  21–26
• Comparison of Methods Used for Ultrasonic Examinations of IMT in the Wall of the Carotid Artery Model

  Zbigniew TRAWIŃSKI, Janusz WÓJCIK

  27–32
• The Measurement of Nonlinear Distortion Using Broadband Noise

  Andrzej DOBRUCKI,, Rafał SICZEK

  33–37
• A Microstructure, Piezoelectric and Dielectric Properties of the PZT Ceramics Obtained by the Sol-Gel Method

  Monika DUKAT, Aldona ZARYCKA

  39–44
• RLS-Based Control Algorithms for 3D Zones of Quiet

  Małgorzata I. MICHALCZYK, Janusz SERWIN

  45–52
• Ironless Loudspeakers with Ferrofluid Seals

  Romain RAVAUD, Guy LEMARQUAND, Valérie LEMARQUAND, Claude DEPOLLIER

  53–58
• Ironless Lowfrequency Loudspeaker Working Under its Resonance Frequency

  Benoit MERIT, Guy LEMARQUAND

  59–64
• Computational and Experimental Investigations of a Sound Pressure Level Distribution at the Outlet of the Spiral Duct

  Wojciech ŁAPKA, Czesław CEMPEL

  65–70
• Influence of Meteorological Conditions on Effectiveness of Acoustic Screens – Measurements and Computations

  Barbara RUDNO–RUDZIŃSKA, Tomasz MALEC, Łukasz SAWA

  71–76
• Investigation of the Road Noise Source Employing an Automatic Noise Monitoring Station

  Maciej SZCZODRAK, Andrzej CZYŻEWSKI, Józef KOTUS

  77–83
• Ship’s Hydroacoustics Signatures Classification

  Andrzej ŻAK

  85–90
• Selective Mixing of a Symphonic Orchestra Recording

  Piotr KLECZKOWSKI

  91–98
• Automatic Detection and Correction of Detuned Singing System for Use With Query-By-Humming Applications

  Michał LECH

  99–104
• Resonance Attenuation of Ultrasonic Waves in a High Viscosity Magnetic Liquid

  Karolina CHARAZIAK, Marcin MARECKI, Tomasz HORNOWSKI, Arkadiusz JÓZEFCZAK, Andrzej SKUMIEL

  105–110
• Effect of Magnetic Field on Electric and Acoustic Properties of the PDMS Ferromagnetic Gel

  Leszek KUBISZ, Andrzej SKUMIEL, Arkadiusz JÓZEFCZAK, Edward PANKOWSKI

  111–116
• Research of Degradation Processes of Insulator Porcelain C 130 Type

  Przemysław RANACHOWSKI, Feliks REJMUND, Zbigniew RANACHOWSKI, Andrzej PAWEŁEK, Andrzej PIĄTKOWSKI

  117–122
• The Study of Influence of High Pressure Torsion Process on Acoustic Emission Activity of Compressed Mg-Li Alloys

  Zbigniew RANACHOWSKI, Przemysław RANACHOWSKI, Feliks REJMUND, Andrzej PAWEŁEK, Andrzej PIĄTKOWSKI, Zdzisław JASIEŃSKI

  123–128
• Prediction of Turbofan Engine Noise Considering Diffraction at the Duct Outlet

  Anna SNAKOWSKA, Henryk IDCZAK

  129–134
• Testing the Sound Quality of Acoustic Vacuum Tube Amplifier

  Stanisław MALECZEK

  135–140
• New Generation Speech Aid for Stuttering People

  Piotr ODYA, Andrzej CZYŻEWSKI

  141–146
• Localization of a Sound Source in Double MS Recordings

  Piotr KLECZKOWSKI, Magdalena PLEWA, Grzegorz PYDA

  147–152
• Hearing Aid Fitting Method Based on Fuzzy Logic Processing

  Piotr SUCHOMSKI, Bożena KOSTEK, Andrzej CZYŻEWSKI

  153–158
• Influence of Absorbing Material Distribution on Double Slope Sound Decay in L-Shaped Room

  Mirosław MEISSNER

  159–164
• Perturbation Methods for Acoustic Systems with Interval Parameters

  Jerzy SKRZYPCZYK

  165–170
• Propagation of Soundwaves in Uncertain Environment – New Interval Perturbation Methodology

  Agnieszka WINKLER–SKALNA

  171–176
• Objective Measure for Assessment of Speech Quality in Rooms

  Stefan BRACHMAŃSKI

  177–182
• Estimation Of The Vocal Folds Vibration Fundamental Frequency by Higer Order Spectrum

  Wiesław WSZOŁEK, Maciej KŁACZYŃSKI

  183–188
• The Influence of the La3+ Content on the Mechanical Properties of Electrooptic Transducers Based on PLZT Type Ceramics

  Marek CZERWIEC, Dagmara BRZEZIŃSKA, Radosław ZACHARIASZ, Jan ILCZUK

  189–194
• Active Vibration Control of Rectangular Plate with Piezoceramic Elements

  Wojciech BATKO, Michał KOZUPA

  195–200
• Precision Analysis of Vibration Energy Flux in Angular Connection of Plates

  Jacek CIEŚLIK, Janina PIECZARA

  201–206
• Online Identification of Mathematical Model of Circular Plate for Vibration Cancellation

  Paweł KOS

  207–212