Wyniki wyszukiwania dla: acoustic diffuser

• Detection Range of Intercept Sonar for CWFM Signals

  Publikacja

  • J. Marszal
  • R. Salamon

  - Archives of Acoustics - Rok 2014

  Stealth in military sonars applications may be ensured through the use of low power signals making them difficult to intercept by the enemy. In recent years, silent sonar design has been investigated by the Department of Marine Electronic Systems of the Gdansk University of Technology. This article provides an analysis of how an intercept sonar operated by the enemy can detect silent sonar signals. To that end a theoretical intercept...

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• Experimental Study of Silent Sonar

  Publikacja

  • J. Marszal

  - Archives of Acoustics - Rok 2014

  Stealth is a frequent requirement in military applications and involves the use of devices whose signals are difficult to intercept or identify by the enemy. The silent sonar concept was studied and developed at the Department of Marine Electronic Systems of the Gdansk University of Technology. The work included a detailed theoretical analysis, computer simulations and some experimental research. The results of the theoretical...

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• Variable Ratio Sample Rate Conversion Based on Fractional Delay Filter

  Publikacja

  • M. Blok
  • P. Drózda

  - Archives of Acoustics - Rok 2014

  In this paper a sample rate conversion algorithm which allows for continuously changing resampling ratio has been presented. The proposed implementation is based on a variable fractional delay filter which is implemented by means of a Farrow structure. Coefficients of this structure are computed on the basis of fractional delay filters which are designed using the offset window method. The proposed approach allows us to freely...

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• Features of Nonlinear Sound Propagation in Vibrationally Excited Gases

  Publikacja

  • A. Perelomova
  • M. Kuśmirek-Ochrymiuk

  - Archives of Acoustics - Rok 2013

  Weakly nonlinear sound propagation in a gas where molecular vibrational relaxation takes place is studied. New equations which govern the sound in media where the irreversible relaxation may take place are derived and discussed. Their form depends on the regime of excitation of oscillatory degrees of freedom, equilibrium (reversible) or non-equilibrium (irreversible), and on the comparative frequency of the sound in relation to...

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• Nonlinear properties of the Gotland Deep – Baltic Sea

  Publikacja

  • G. Grelowska
  • E. Kozaczka

  - Archives of Acoustics - Rok 2015

  The properties of the nonlinear phenomenon in water, including sea water, have been well known for many decades. The feature of the non homogeneous distribution of the speed of sound along the depth of the sea is very interesting from the physical and technical point of view. It is important especially in the observation of underwater area by means of acoustical method ( Grelowska et al ., 2013; 2014). The observation of the underwater...

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• Music Mood Visualization Using Self-Organizing Maps

  Publikacja

  • M. Piotrowska
  • B. Kostek

  - Archives of Acoustics - Rok 2015

  Due to an increasing amount of music being made available in digital form in the Internet, an automatic organization of music is sought. The paper presents an approach to graphical representation of mood of songs based on Self-Organizing Maps. Parameters describing mood of music are proposed and calculated and then analyzed employing correlation with mood dimensions based on the Multidimensional Scaling. A map is created in which...

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• Inhomogeneity of low-noise wearing courses evaluated by tire/road noise measurements using the close-proximity method

  Publikacja

  • P. Mioduszewski
  • W. Gardziejczyk

  - APPLIED ACOUSTICS - Rok 2016

  Performing numerous analyses of tire/road noise measurements on low-noise pavements during the last several years, the authors observed significant inhomogeneity of the wearing course in numerous cases, while similar problems were almost non-existent when dense pavements were measured. Three main causes of low-noise pavement inhomogeneity can be defined. The first one is imperfections in the technology used for asphalt mix production...

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• Performance of Noise Map Service Working in Cloud Computing Environment

  Publikacja

  • K. Marciniuk
  • M. Szczodrak
  • B. Kostek

  - Archives of Acoustics - Rok 2016

  In the paper a noise map service designated for the user interested in environmental noise subject is presented. It is based on cloud computing. Noise prediction algorithm and source model, developed for creating acoustic maps, are working in cloud computing environment. In the study issues related to noise modeling of sound propagation in urban spaces are discussed with a special focus on road noise. Examples of results obtained...

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• Loudness Scaling Test Based on Categorical Perception

  Publikacja

  • B. Kostek
  • P. Odya
  • P. Suchomski

  - Archives of Acoustics - Rok 2016

  The main goal of this research study is focused on creating a method for loudness scaling based on categorical perception. Its main features, such as: way of testing, calibration procedure for securing reliable results, employing natural test stimuli, etc., are described in the paper and assessed against a procedure that uses 1/2-octave bands of noise (LGOB) for the loudness growth estimation. The Mann-Whitney U-test is employed...

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• Modelling and Measurement of Folk Guitar: Truss Rod and Strings in Numerical Analysis of Tone

  Publikacja

  • P. Bielski
  • M. Kujawa
  • I. Lubowiecka

  - Archives of Acoustics - Rok 2019

  The study makes an attempt to model a complete vibrating guitar including its non-linear features, specifically the tension-compression of truss rod and tension of strings. The purpose of such a model is to examine the influence of design parameters on tone. Most experimental studies are flawed by uncertainties introduced by materials and assembly of an instrument. Since numerical modelling of instruments allows for deterministic...

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• A study on of music features derived from audio recordings examples – a quantitative analysis

  Publikacja

  • A. Dorochowicz
  • B. Kostek

  - Archives of Acoustics - Rok 2018

  The paper presents a comparative study of music features derived from audio recordings, i.e. the same music pieces but representing different music genres, excerpts performed by different musicians, and songs performed by a musician, whose style evolved over time. Firstly, the origin and the background of the division of music genres were shortly presented. Then, several objective parameters of an audio signal were recalled that...

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• Standing Waves in One-Dimensional Resonator Contaning an Ideal Isothermal Gas Affected by the Constant Mass Force

  Publikacja

  • A. Perelomova

  - Archives of Acoustics - Rok 2017

  The study is devoted to standing acoustic waves in one-dimensional planar resonator which containing an ideal gas. A gas is affected by the constant mass force. Two types of physically justified boundary conditions are considered: zero velocity or zero excess pressure at both boundaries. The variety of nodal and antinodal points is determined. The conclusion is that the nodes of pressure and antinodes of velocity do not longer...

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• DAB vs DAB+ Radio Broadcasting: a Subjective Comparative Study

  Publikacja

  • P. Falkowski-Gilski

  - Archives of Acoustics - Rok 2017

  In the age of digital media, delivering high quality content to consumers is one of the most demanding tasks. There exist numerous broadcasting standards, with different pros and cons, and the DAB/DAB (Digital Audio Broadcasting) system is one of the most popular among them. From an engineer’s perspective, efficient resource management under limited bandwidth conditions has always been a challenge. In this paper a subjective quality...

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• Voiceless Stop Consonant Modelling and Synthesis Framework Based on MISO Dynamic System

  Publikacja

  • G. Korvel
  • B. Kostek

  - Archives of Acoustics - Rok 2017

  A voiceless stop consonant phoneme modelling and synthesis framework based on a phoneme modelling in low-frequency range and high-frequency range separately is proposed. The phoneme signal is decomposed into the sums of simpler basic components and described as the output of a linear multiple-input and single-output (MISO) system. The impulse response of each channel is a third order quasi-polynomial. Using this framework, the...

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• In Memoriam Professors Marianna Sankiewicz-Budzyński and Gustaw K.E. Budzyński - Founders of the Polish Audio Engineering

  Publikacja

  • A. Czyżewski
  • B. Kostek

  - Archives of Acoustics - Rok 2018

  Biography and scientific achievements of Professors Marianna Sankiewicz-Budzyński and Gustaw K.E. Budzyński - Founders of the Polish Audio Engineering.

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• Subjective and Objective Comparative Study of DAB+ Broadcast System

  Publikacja

  • P. Falkowski-Gilski
  • J. Stefański

  - Archives of Acoustics - Rok 2017

  Broadcasting services seek to optimize their use of bandwidth in order to maximize user’s quality of experience. They aim to transmit high-quality digital speech and music signals at the lowest bitrate. They intend to offer the best quality under available conditions. Due to bandwidth limitations, audio quality is in conflict with the number of transmitted radio programs. This paper analyzes whether the quality of real-time digital...

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• Nonlinear Excitation of the Non-Wave Perturbations by the Magnetoacoustic Waves in the Non-Isentropic Plasma

  Publikacja

  • A. Perelomova

  - Archives of Acoustics - Rok 2018

  Nonlinear excitation of slow modes by the planar magnetosonic perturbations in a plasma is discussed. Plasma is an open system due to radiation and external heating. This may stipulate enhancement of wave perturbations and hence the acoustical activity of plasma. Plasma is assumed to be a homogeneous ideal gas with infinite electrical conductivity. The straight magnetic field is orthogonal to the velocity of fluid’s...

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• Sample Rate Conversion with Fluctuating Resampling Ratio

  Publikacja

  • M. Blok

  - Archives of Acoustics - Rok 2012

  In this paper a sample rate conversion with continuously changing resampling ratio has been presented. The proposed implementation is based on variable fractional delay filter implemented using a Farrow structure. It have been demonstrated that using the proposed approach instantaneous resampling ratio can be freely changed. This allows for simulation of audio recored on magnetic tape with nonuniform velocity as well as removal...

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• ISO test track influence on the EU tyre label noise value

  Publikacja

  • T. Berge
  • P. Mioduszewski
  • M. Hałucha
  • J. Bohatkiewicz

  - APPLIED ACOUSTICS - Rok 2025

  In 2009, the European Union (EU) introduced a directive governing the labelling of tyres, which underwent revision in 2020. This labelling system encompasses three key parameters related to tyre performance: wet grip (safety), rolling resistance (energy consumption), and external rolling noise (environmental impact). These label values serve as crucial information for customers seeking to purchase replacement tyres for their vehicles....

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• Quality Evaluation of Speech Transmission via Two-way BPL-PLC Voice Communication System in an Underground Mine

  Publikacja

  • P. Falkowski-Gilski
  • G. Debita

  - Archives of Acoustics - Rok 2023

  In order to design a stable and reliable voice communication system, it is essential to know how many resources are necessary for conveying quality content. These parameters may include objective quality of service (QoS) metrics, such as: available bandwidth, bit error rate (BER), delay, latency as well as subjective quality of experience (QoE) related to user expectations. QoE is expressed as clarity of speech and the ability...

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• Digital waveguide models of the panpipes

  Publikacja

  • A. Czyżewski
  • J. Jaroszuk
  • B. Kostek

  - Archives of Acoustics - Rok 2002

  W artykule przedstawiono główne cechy syntezy falowodowej. Omówiono cechy instrumentu fletni Pana. Przedyskutowano cechy zaproponowanych dwóch modeli fletni Pana różniących się złożonością obliczeniową. Pokazano szczegóły implementacyjne tych modeli, a także uzyskane wyniki symulacji dźwięków w modelach. Dokonano porównania dźwięków rzeczywistych i uzyskanych w wyniku syntezy falowodowej.

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• Heating caused by a non periodic ultrasound. Theory and calculations on pulse and stationary sources.

  Publikacja

  • A. Perelomova

  - Archives of Acoustics - Rok 2003

  Przedstawiono teorię ewolucji ogrzewania na skutek przejścia fali akustycznej każdego typu. Przedyskutowano obliczenia na podstawie nowych wzorów dla fali impulsowej i uderzeniowej. Wzory zgadzają się z klasycznymi w wypadku fal okresowych.

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• Experiments and FE analyses on airborne sound properties of composite structural insulated panels

  Publikacja

  • A. Wawrzynowicz
  • M. Krzaczek
  • J. Tejchman

  - Archives of Acoustics - Rok 2014

  Artykuł przedstawia wyniki doświadczalne i numeryczne odnośnie właściwości akustycznych paneli budowlanych. Jako panele zastosowano płyty kompozytowe konstrukcyjno-izolacyjne CSIP. Obliczenia numeryczne wykonano MES stosując podejście zaproponowane w pakiecie ABAQUS. Wyniki MES porównano bezpośrednio z doświadczeniami. Zaproponowano różne spsoby poprawy właściwości akustycznych paneli.

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• Application a laboratory stand for multi-symptoms tests for high cyclic fatigue of constructional material

  Publikacja

  • A. Kaczmarski

  - Journal of Polish CIMEEAC - Rok 2012

  This paper describes a need of diagnostics present ship plants according to current technical state. In order to reach competent physical quantity describing fatigue of materials by congregated energy. This paper describes using some diagnostics methods (acoustic emission AE, vibration, thermovision, deformation) in order to definition fatigue state of construction material. The author tries to find correlation between measured...

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• Automatic labeling of traffic sound recordings using autoencoder-derived features

  Publikacja

  • A. Kurowski
  • S. Zaporowski
  • A. Czyżewski

  - Rok 2019

  An approach to detection of events occurring in road traffic using autoencoders is presented. Extensions of existing algorithms of acoustic road events detection employing Mel Frequency Cepstral Coefficients combined with classifiers based on k nearest neighbors, Support Vector Machines, and random forests are used. In our research, the acoustic signal gathered from the microphone placed near the road is split into frames and converted...

• Sounding Mechanism of a Flue Organ Pipe—A Multi-Sensor Measurement Approach

  Publikacja

  • P. Bordoni
  • P. Odya
  • J. Kotus
  • B. Kostek

  - SENSORS - Rok 2024

  This work presents an approach that integrates the results of measuring, analyzing, and modeling air flow phenomena driven by pressurized air in a flue organ pipe. The investigation concerns a Bourdon organ pipe. Measurements are performed in an anechoic chamber using the Cartesian robot equipped with a 3D acoustic vector sensor (AVS) that acquires both acoustic pressure and air particle velocity. Also, a high-speed camera is employed...

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• Optimal bandgap of a single-junction photovoltaic cell for the mobile Internet-of-Things

  Publikacja

  • G. Jarosz
  • R. Signerski

  - iScience - Rok 2025

  The procedure for determining the maximum power of a single-junction photovoltaic cell operating in various types of lighting is presented. This is a key issue for photovoltaics powering the mobile Internet-of-Things (IoTs). The simulations performed are based on the detailed balance principle, without any of simplifying assumptions included in the Shockley-Queisser model. Optimal energy bandgap for diffuse solar light was found...

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• BADANIA ODBIOROWE ŁUKOWEJ KŁADKI DLA PIESZYCH 10T NAD DROGĄ S8 W WARSZAWIE

  Publikacja

  • Ł. Pyrzowski
  • J. Kałuża
  • M. Miśkiewicz
  • Ł. Filar
  • M. Wazowski

  - Rok 2015

  The paper presents in situ load testing of the newly build footbridge over S8 expressway in Warsaw. The most characteristic thing for the structure is a shape of arch girders, which correspond with adjacent half-tunnel acoustic baffles. The paper consists of description of the structure, results of the in-situ static and dynamic load testing, results of the numerical simulations, comparative analysis and final conclusions on the...

• The AC motor voltage and audible noise waveforms in ship’s electrical drive systems with frequency converters

  Dane Badawcze

  open access

  • B. Pałczyńska
  • J. Wyszkowski

  The presented dataset is part of research focusing on the impact of the ship's electrical drive systems with frequency converters on vibrations and the level of audible noise on ships.

• Split-Beam Echosounder Data from Puck Bay

  Publikacja

  • P. Pezacki

  - Rok 2022

  The acoustic data was collected in 2018–2019 in the Bay of Puck in the seasons: autumn, winter, spring. The data was collected during the day and night using three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz at a designated study area not far from the city of Hel, while the ship was sailing. To ensure data quality, the echosounders were calibrated and passive noise was measured.

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• Robust algorithm for active feedback control of narrowband noise

  Publikacja

  • M. Meller
  • M. Niedźwiecki
  • M. Gajdzica

  - Rok 2015

  The problem of active control of narrowband acoustic noise is considered. It is shown that the proposed earlier feedback control algorithm called SONIC (self-optimizing narrowband interference canceller), based on minimization of the L2-norm performance measure, can be re-derived using the L1 approach. The resulting robust SONIC algorithm is more robust to heavy-tailed measurement noise, such as the αlpha-stable noise, than the...

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• Akustyczna analiza natężenia ruchu drogowego dla systemów zarządzania ruchem

  Publikacja

  • K. Marciniuk

  - Rok 2019

  W pracy przybliżono wybrane zagadnienia z dziedziny zarządzania transportem drogowym w Polsce i na świecie. W tym kontekście pzredstawiono potrzeby rynkowe, wymagania jak i możliwości w zakresie pozyskiwania informacji o aktualnym stanie sieci drogowych. Zaproponowano akustyczną metodę nadzorowania ruchu drogowego i jej możliwości w kontekście systemów zarządzania ruchem. Przedstawiono schemat akwizycji sygnału wraz z danymi odniesienia....

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [5190730046649041]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [519073004664201]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [5190730046649591]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046655751]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046651411]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046659201]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046659901]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046653061]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046655921]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [5190730046644881]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• EBV positive diffuse large B-cell lymphoma - Female, 68 - Tissue image [909072959440871]

  Dane Badawcze

  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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [5190730046652631]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [5190730046644781]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [7040247104959341]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [7040247104957181]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [519073004664761]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.

• EBV positive diffuse large B-cell lymphoma - Female, 70 - Tissue image [519073004665201]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS 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.

• Malignant lymphoma, large B-cell, diffuse, NOS - Male, 55 - Tissue image [5190730046645881]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PALATE 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.