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Search results for: ACOUSTIC HYSTERESIS

  • Detection of the acoustic interferences during AFM operation

    Open Research Data
    open access - series: Scanning Probe Microscopies data

    Atomic force microscopy is a particularly complicated surface imaging technique due to the large number of factors that affect the quality of the resulting images. They are obviously difficult and sometimes even impossible to control at the same time. One of such factors may even be the seismological location of the building or the influence of mechanical...

  • Acoustic emission studies of the 7075 aluminium alloy pitting corrosion process

    Open Research Data
    open access

    The dataset contains the cyclic polarization studies and corresponding acoustic emission measurements, revealing the pitting corrosion process of the passive layer at the surface of the 7075 aluminum alloy in the borate buffer with different chloride ions concentrations, in the range between 0.05 and 25 mM.

  • Acoustic emission signals in concrete beams under 3-point bending (polyolefin and steel fibre concrete)

    Open Research Data
    open access

    The DataSet contains the results of the mechanical behaviour of concrete beams with dimensions 40 x 40 x 160 cm3 under the 3-point bending. All specimens were manufactured based on the same concrete mixture composed of cement CEM I 42.5R (380 kg/m3), water (165 kg/m3), aggregate 0/2 mm (648 kg/m3), aggregate 2/8 mm (426 kg/m3), aggregate 8/16 mm (754...

  • Acoustic emission signals in concrete beams under 3-point bending (beams #1, #2, #3)

    Open Research Data
    open access

    The DataSet contains the results of the mechanical behaviour of concrete beams with dimensions 40 x 40 x 160 cm3under the 3-point bending. The beams were made of concrete with the following ingredients: cement CEM I 42.5R (330 kg/m3), aggregate 0/2 mm (710 kg/m3), aggregate 2/8 mm (664 kg/m3), aggregate 8/16 mm (500 kg/m3), water (165 kg/m3) and super-plasticizer...

  • Data recorded for the purpose of the 3D sound intensity visualization around the organ pipe (des sound)

    Open Research Data
    open access

    The set contains data recorded using the Cartesian robot and multichannel acoustic vector sensor (from Microflown) for the purpose of the 3D sound intensity visualization of radiated acoustic energy around the organ pipe. 

  • Acoustic emission signals in concrete beams under 3-point bending (plain concrete, steel fibre reinforced concrete, steel bar reinforced concrete)

    Open Research Data
    open access

    The DataSet contains the results of the mechanical behaviour of concrete beams with dimensions 40 x 40 x 160 cm3under the 3-point bending. Two concrete mixes, both based on the same design, were produced in the test programme. Mixture #1 was the plain concrete (PC), consisting of cement CEM I 42.5R (380 kg/m3), water (165 kg/m3), aggregate 0/2 mm (648...

  • Projects of noise level on railway lines

    Open Research Data
    open access

    Projects of acoustic signals from railway lines for further analysis in the BK Connect program.

  • projects of noise level on railway lines

    Open Research Data
    open access

    Projects of acoustic signals from railway lines for further analysis in the BK Connect software.

  • X-ray images of Baltic herring. Data analysis

    Open Research Data
    open access

    Based on the developed methodology for the: (i) optimal method of catching, (ii) transporting and storing fish, (iii) measuring and (iv) analyzing X-rays images, the existing collection of X-ray images of Baltic herring, caught in October 2002 during the Swedish component of the Baltic International Acoustic Survey (BIAS) in the Baltic proper (ICES...

  • Split-beam echosounder data from Gdansk Deep Summer 2019

    Open Research Data
    open access

    The acoustic data was collected in 2019, in the Gdansk Deep, in the season: Summer. Data was collected during the day and night. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected while the ship was sailing. To ensure data quality, echosounders were calibrated and passive...

  • Split-beam echosounder data from Puck Bay autumn 2018

    Open Research Data
    open access

    The acoustic data was collected in 2018, in the Bay of Puck, in the seasons: autumn. Data was collected during the day and night. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected at a designated study area not far from the city of Hel, while the ship was sailing. To ensure...

  • Split-beam echosounder data from Puck Bay spring 2019

    Open Research Data
    open access

    The acoustic data was collected in 2019, in the Bay of Puck, in the season: spring. Data was collected during the day and night. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected at a designated study area not far from the city of Hel, while the ship was sailing. To ensure...

  • Split-beam echosounder data from Puck Bay spring 2019 Part II

    Open Research Data
    version 1.0 open access

    The acoustic data was collected in 2019, in the Bay of Puck, in the season: spring. Data was collected during the sunrise and sunset. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected at a designated study area not far from the city of Hel, while the ship was sailing....

  • Split-beam echosounder data from Puck Bay winter 2019

    Open Research Data
    open access

    The acoustic data was collected in 2019, in the Bay of Puck, in the season: winter. Data was collected during the day and night. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected at a designated study area not far from the city of Hel, on the route Hel - Gdynia and on...

  • Split-beam echosounder data from Puck Bay autumn 2018 Part II

    Open Research Data
    open access

    The acoustic data was collected in 2018, in the Bay of Puck, in the seasons: autumn. Data was collected during the day and night. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected at a designated study area not far from the city of Hel and on the route Hel - Gdynia while...

  • Imaging of ferroelectric properties of sinter by means of Piezoresponse Force Microscopy

    Open Research Data
    open access - series: Scanning Probe Microscopies data

    Ferroelectricity is a property of certain materials [1], characterized by a spontaneous electrical polarization that can be reversed by applying an external electric field. Ferroelectric properties can be used to make capacitors with adjustable capacity. The permeability of ferroelectrics is not only regulated, but usually also very high, especially...

  • Underwater noise recorded in Hornsund Fjord, Spitsbergen, at the front of the Hans Glacier

    Open Research Data
    open access
    • J. Tegowski
    • O. Glowacki
    • M. Ciepły
    • M. Błaszczyk
    • J. Jania
    • M. Moskalik
    • P. Blondel
    • G. Deane

    The data includes underwater noise recorded in Hornsund Fjord, Spitsbergen at the front of the Hans Glacier between 05/09/2013 and 30/09/2013. A description of the data is in the article

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

    Open Research Data
    open access

    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.

  • Examples of AFM applications in liquid environment

    Open Research Data
    open access - series: Scanning Probe Microscopies data

    Important advantage of atomic force microscopy (also tunneling microscopy) is the ability to work in different environments (vacuum, controlled atmosphere, liquid environment). The last one, open interesting possibilities, such as imaging of delicate biological materials in their natural state. The use of electrochemical mode allows for the modification...

  • Audible noise in ship’s electrical drive systems with frequency converters

    Open Research Data
    open access

    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.

  • SYNAT_MUSIC_GENRE_FV_173

    Open Research Data
    open access

    This is the original dataset containing 51582 music tracks (22 music genres) and 173 element-feature vector [1-6,9]. A collection of more than 50000 music excerpts described with a set of descriptors obtained through the analysis of 30-second mp3 recordings was gathered in a database called SYNAT. The SYNAT database was realized by the Gdansk University...

  • SYNAT Music Genre Parameters PCA 19

    Open Research Data
    open access

    The dataset contains feature vector after  Principal Component Analysis (PCA) performing, so there are 11 music genres and 19-element vector derived from music excerpts. Originally, a feature vector containing 173 elements was conceived in earlier research studies carried out by the team of authors [1-6]. A collection of 52532 music excerpts described...

  • SYNAT_PCA_48

    Open Research Data
    open access

    There is a series of datasets containing feature vectors derived from music tracks. The dataset contains 51582 music tracks (22 music genres) and feature vector after  Principal Component Analysis (PCA) performing, so there are 48-element vectors derived from music excerpts. Originally, a feature vector containing 173 elements was conceived in earlier...

  • SYNAT_PCA_11

    Open Research Data
    open access

    The dataset contains 51582 music tracks (22 music genres) and feature vector after  Principal Component Analysis (PCA) performing, so there are 11-element vectors derived from music excerpts. Originally, a feature vector containing 173 elements was conceived in earlier research studies carried out by the team of authors [1-6]. A collection of more than...