Search results for: acoustic diffuser

• Developing assumptions for the tram noise attenuation passive system using the noise maps analysis method

  Publication

  • T. Nowakowski

  - Archives of Acoustics - Year 2019

  The paper presents experimental research carried out to determine the possible actions to reduce thenoise generated by trams in a highly urbanised area. A few design strategies affecting tram ride qualityhave been presented – especially in the aspect of the acoustic phenomena. Main sources of the noisein trams were characterised. The paper includes selected results of comprehensive...

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• Distributed System For Noise Threat Evaluation Based On Psychoacoustic Measurements

  Publication

  • J. Kotus
  • M. Szczodrak
  • A. Czyżewski
  • B. Kostek

  - Metrology and Measurement Systems - Year 2012

  An innovative system designed for the continuous monitoring of acoustic climate of urban areas was presentedin the paper. The assessment of environmental threats is performed using online data, acquired through a grid ofengineered monitoring stations collecting comprehensive information about the acoustic climate of urban areas.The grid of proposed devices provides valuable data for the purpose of long and short time acoustic climateanalysis....

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• Detection of the Incoming Sound Direction Employing MEMS Microphones and the DSP

  Publication

  • G. Szwoch
  • J. Kotus

  - Year 2017

  A 3D acoustic vector sensor based on MEMS microphones and its application to road traffic monitoring is presented in the paper. The sensor is constructed from three pairs of digital MEMS microphones, mounted on the orthogonal axes. Signals obtained from the microphones are used to compute sound intensity vectors in each direction. With this data, it is possible to compute the horizontal and vertical angle of an incoming sound....

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• Cavitation based cleaner technologies for biodiesel production and processing of hydrocarbon streams: A perspective on key fundamentals, missing process data and economic feasibility – A review

  Publication

  • E. Çako
  • Z. Wang
  • R. Castro-Muñoz
  • M. P. Rayaroth
  • G. Boczkaj

  - ULTRASONICS SONOCHEMISTRY - Year 2022

  The present review emphasizes the role of hydrodynamic cavitation (HC) and acoustic cavitation in clean and green technologies for selected fuels (of hydrocarbon origins such as gasoline, naphtha, diesel, heavy oil, and crude oil) processing applications including biodiesel production. Herein, the role of cavitation reactors, their geometrical parameters, physicochemical properties of liquid media, liquid oxidants, catalyst loading,...

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• Multimodal Surveillance Based Personal Protection System

  Publication

  • J. Kotus
  • P. Dalka
  • M. Szczodrak
  • G. Szwoch
  • P. Szczuko
  • A. Czyżewski

  - Year 2013

  A novel, multimodal approach for automatic detection of abduction of a protected individual, employing dedicated personal protection device and a city monitoring system is proposed and overviewed. The solution is based on combining four modalities (signals coming from: Bluetooth, fixed and PTZ cameras, thermal camera, acoustic sensors). The Bluetooth signal is used continuously to monitor the protected person presence, and in case...

• A Study of Cross-Linguistic Speech Emotion Recognition Based on 2D Feature Spaces

  Publication

  • G. Tamulevicius
  • G. Korvel
  • A. B. Yayak
  • P. Treigys
  • J. Bernataviciene
  • B. Kostek

  - Electronics - Year 2020

  In this research, a study of cross-linguistic speech emotion recognition is performed. For this purpose, emotional data of different languages (English, Lithuanian, German, Spanish, Serbian, and Polish) are collected, resulting in a cross-linguistic speech emotion dataset with the size of more than 10.000 emotional utterances. Despite the bi-modal character of the databases gathered, our focus is on the acoustic representation...

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• Non-invasive investigation of a submerged medieval harbour, a case study from Puck Lagoon

  Publication

  • Ł. Janowski
  • A. Pydyn
  • M. Popek
  • P. Tysiąc

  - Journal of Archaeological Science-Reports - Year 2024

  This study presents an innovative approach to underwater archaeological prospection using non-invasive methods of seabed exploration. The research focuses on the Puck medieval harbour, a cultural heritage site, and utilises acoustic and optical underwater remote-sensing technology. The primary objectives include optimising the use of Airborne Laser Bathymetry in underwater archaeology, enhancing the filtration process for mapping...

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• Badanie wpływu ruchu niższego priorytetu na jakość usług o wymaganiach czasu rzeczywistego w sieci IP QoS.

  Publication

  • S. Kaczmarek
  • M. Narloch

  - Year 2004

  W artykule przedstawiono wyniki badań dotyczące wpływu rozkładu długości pakietów ruchu o niższym priorytecie na jakość usług o wymaganiach czasu rzeczywistego (real time services), korzystających ze schematu obsługi Expedited Forwarding Per Hop Behavior (EF PHB) w sieci IP QoS Differentiated Services (DiffServ). Wyniki zaprezentowane w referacie zostały uzyskane zarówno przy pomocy modeli analitycznych, opisujących gwarancje statystyczne...

• Kinedynamics of Spherical Wavefields in Fluid and Dielectric Continua

  Publication

  • H. Lasota

  - Year 2016

  Distubances induced by physical sources in fluids or dielectrics maintain their primary character while propagating throughout either of these bi-dynamic continua. The paper defines and illustrates four sets of bi-fields based on four specific fundamental kinedynamic solutions to inhomogeneous wave equations related to quasi-point acoustic and electromagnetic sources.

• Analiza akustyki Teatru im. Marii Zańkowieckiej we Lwowie na podstawie pomiarów fotogrametrycznych i akustycznych

  Publication

  • T. Kamisiński
  • A. Kulowski
  • R. Kinasz
  • A. Pilch
  • A. Waczko

  - Year 2008

  Utworzono model komputerowy pola akustycznego w sali widowiskowej Teatru i zbadano zakres możliwych zmian akustyki sali w związku z planowanym remontem sali. Model został skalibrowany na podstawie pomiarów akustycznych w stanie aktualnym. W obliczeniach wykorzystano program komputerowy CATT-Acoustic.

• The vortex flow caused by sound in a bubbly liquid

  Publication

  • A. Perelomova
  • P. Wojda

  - CENTRAL EUROPEAN JOURNAL OF PHYSICS - Year 2014

  Generation of vorticity in the field of intense sound in a bubbly liquid in the free half-space is considered. The reasons for generation of vorticity are nonlinearity, diffraction, and dispersion. Acoustic streaming differs from that in a Newtonian fluid. Under some conditions, the vortex flow changes its direction. Conclusions concern streaming induced by a harmonic or an impulse Gaussian beam.

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• Grażyna Grelowska prof. dr hab. inż.

  People

• A low complexity double-talk detector based on the signal envelope

  Publication

  • G. Szwoch
  • A. Czyżewski
  • M. Kulesza

  - SIGNAL PROCESSING - Year 2008

  A new algorithm for double-talk detection, intended for use in the acoustic echo canceller for voice communication applications, is proposed. The communication system developed by the authors required the use of a double-talk detection algorithm with low complexity and good accuracy. The authors propose an approach to doubletalk detection based on the signal envelopes. For each of three signals: the far-end speech, the microphone...

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• Investigation of the laser generated ablation plasma plume dynamics and plasma plume sound wave dynamics

  Publication

  • M. Tański
  • R. Barbucha
  • M. Kocik
  • K. Garasz
  • J. Mizeraczyk

  - Year 2012

  We investigated the dynamics of laser generated ablation plasma plume expanding in ambient air and dynamics of the sound wave generated by the expanding plasma. The ablation plasma plume was generated during nanosecond laser micromachining of the thin metal foil. The time-resolved images of the expanding plasma plume and sound wave were captured at several nanosecond intervals. Using captured images the expansion rate of the plasma...

• INVESTIGATION OF THE LOMBARD EFFECT BASED ON A MACHINE LEARNING APPROACH

  Publication

  • G. Korvel
  • P. Treigys
  • K. Kąkol
  • B. Kostek

  - International Journal of Applied Mathematics and Computer Science - Year 2023

  The Lombard effect is an involuntary increase in the speaker’s pitch, intensity, and duration in the presence of noise. It makes it possible to communicate in noisy environments more effectively. This study aims to investigate an efficient method for detecting the Lombard effect in uttered speech. The influence of interfering noise, room type, and the gender of the person on the detection process is examined. First, acoustic parameters...

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• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009586181]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Female, 65 - Tissue image [5040730027997501]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5030730017675291]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009587551]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009588401]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5160730021359911]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of TESTIS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 55 - Tissue image [5030730017656871]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009583431]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 16 - Tissue image [6030730027635581]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of SMALL INTESTINE tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5030730017671911]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009597711]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 55 - Tissue image [5040730020289681]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Female, 65 - Tissue image [5040730027995451]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009587811]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 55 - Tissue image [5030730017661341]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009582321]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [318063000958731]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5160730021351151]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of TESTIS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Female, 56 - Tissue image [5020730020707341]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [318063000958771]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009588741]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Female, 56 - Tissue image [3300730069471591]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Female, 65 - Tissue image [5040730027992561]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 55 - Tissue image [5030730017651321]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 75 - Tissue image [5020730020699921]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of TESTIS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Female, 56 - Tissue image [330073006947891]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 55 - Tissue image [5030730017659221]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5030730017678001]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5030730017674701]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5160730021359401]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of TESTIS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 11 - Tissue image [3180630009586141]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 72 - Tissue image [3120630008312931]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of TONSIL tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 55 - Tissue image [5040730020286121]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 63 - Tissue image [5030730017674961]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.

• Diffuse large B-cell lymphoma, NOS - Male, 16 - Tissue image [6030730027634131]

  Open Research Data

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of SMALL INTESTINE tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.