cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34808/s3xf-xv54
title: Analysis of the instantaneous power signal for bearing diagnostics -bearing damaged

description: The attached dataset contains the measurement results of the instantaneous values of current and voltage, recorded during the diagnostics of a damaged bearing. Bearing diagnostics can be carried out based on the method, which relies on the measurement and analysis of the variability of the signal instantaneous power, defined as the product of instantaneous current and voltage power supplied to the engines.
Bearing damage causes the appearance of deformations, which are in the form of additional harmonic components of the spectrum. These components are formed as a result of waveform distortions by signals with frequencies specific for a given type of bearing damage. Relationships for determining these frequencies are known in the literature. Therefore, in the instantaneous power spectrum, there are components that can be used as a diagnostic symptom, on the basis of which it is possible to assess the technical condition of bearings in induction motors.
The method of performing diagnostic tests of bearing failures is based on the use of the product of the instantaneous current and voltage, spectral analysis of the resulting signal, and determining the frequency characteristic of the damage and identify them in the spectrum of instantaneous power. In the described method, the measurement is carried out by taking the signal, which is a measure of the current and voltage supplied to the machine.
The measuring stand used for bearing diagnostics consists of a tested engine, magnetic clutch, vibroacoustic dampers, whose task is to isolate the tested machines from the base on which the load is mounted, and a laser system for accurate shaft alignment. The laboratory stand allows measurements to be made for induction motors up to 5.0 kW.
The process of conditioning the current signal is performed using the current-voltage transducer LEM CT-5T (conversion ratio 5A/5V, and conditioning of the voltage signal is done by a voltage transducer LEM CV3-500 (conversion ratio 500V/10V). Then, both signals are fed to the measurement system, whose main component is the NI PXI 4462 data acquisition card installed in the NI PXI 1031 cassette measuring. Signals from the measurement cassette are transferred to a PC, where they are analyzed.
Machines STG80X-4C type were studied of the following parameters: Pn = 1.1 kW, Un = 400/230 V, In = 2.9/5.0 A. The measurements were performed for engines and machines with bearing failures. 6204 type of bearings were used in the tested machines.
Sample measurement results for the engine with damaged bearing inner race are presented. Measurements made for the rotational speed of the tested machine n = 1411 rpm, load 98% of In, sampling frequency 16384 Hz and spectrum resolution 1/32 Hz.
DOI: 10.34808/tp3w-f737
title: The AFM micrographs and impedance study of epoxy coatings after exposure in corrosive media

description: The dataset contains Atomic Force Microscopy (AFM) images and local impedance measurements of epoxy organic coating used as anti-corrosion protection, before and after 2-month exposure to sodium chloride solution. Additionally, there two local impedance spectra recorded after the coating exposure. The first one was recorded on intact coating surface, the second one is from the defected region, which had been revealed by the AFM studies.
The results presented within this dataset were published in Surface Innovation journal article: 10.1680/jsuin.15.00007
DOI: 10.34808/80qd-tw97
title: The electrochemical impedance spectroscopy studies of cataphoretic-grown epoxy-based coatings

description: The dataset contains electrochemical impedance spectroscopy spectra collected for epoxy-based cataphoretic coatings in order to determine the offered anti-corrosion protection. Particular spectra pertain to the coatings applied for the different magnitude of polarization potential imposed, namely 10V, 20V and 30V. The results were obtained within the B.Sc. studies of Miss Aleksandra Niczewska
DOI: 10.34808/7ggt-qe74
title: The scanning spreading resistance microscopy (SSRM) of some CoCrMo alloys subjected to electrochemical litography

description: The dataset contains the results of the experiment consisting of performing electrochemical lithography on the surface of the CoCrMo prosthetic alloy. First, by applying local anodic polarization, oxide structures were created on the surface of the material. Next, they were imaged in the SSRM (scanning spreading resistance microscopy) mode to visualize the topographic and electrical differentiation of the modified surface.
The files are in binary form, the contents are maps of various physical quantities in the two-dimensional spatial domain. The files can be accessed both with the Nova software included with NT-MDT microscopes and with the free Gwyddion software to be downloaded at http://gwyddion.net/.
DOI: 10.34808/gxtp-fx59
title: Evaluation of antimicrobial properties of thermomelt adhesives modified with zinc compounds

description: The dataset contains the results of microbiological tests of thermomelt adhesives modified with zinc compounds, whose activity was assessed for their ability to reduce the number of Escherichia coli and Staphylococcus aureus strain, representing the Gram (-) and Gram (+) bacteria, respectively. The evaluation of antimicrobial properties of samples were made according to the quantitative ASTM E2149 method with slight modification. The obtained results confirmed the inhibitory effect of both types of bacteria in contact with samples containing zinc compounds, in particular zinc oxide. The results are presented in the form of photos of plates with cultures of the test and control samples, which were taken with the Nikon D7200 camera).
DOI: 10.34808/5fvy-a637
title: A Fortran-95 algorithm to solve the three-dimensional Higgs boson  equation in the de Sitter space-time

description: A numerically efficient finite-difference technique for the solution of a fractional extension of the Higgs boson equation in the de Sitter space-time is designed. The model under investigation is a multidimensional equation with Riesz fractional derivatives of orders in (0,1)U(1,2], which considers a generalized potential and a time-dependent diffusion factor. An energy integral for the mathematical model is readily available, and we propose an explicit and consistent numerical technique based on fractional-order centered differences with similar Hamiltoninan properties as the continuous model. A fractional energy approach is used then to prove the properties of stability and convergence of the technique. For simulation purposes, we consider both the classical and the fractional Higgs real-valued scalar fields in the (3+1)-dimensional de Sitter space-time. The present algorithm is the first to implement a Hamiltonian discretization of the Higgs boson equation (both fractional and non-fractional) in the de Sitter space-time. More precisely, the present effort is the first paper of the literature in which a dissipation-preserving scheme to solve the multi-dimensional (fractional) Higgs boson equation in the de Sitter space-time is proposed. Previous efforts used techniques based on the Runge--Kutta method or discretizations that did not preserve the dissipation nor were rigorously analyzed.
DOI: 10.34808/aszt-ha67
title: Measurements of the rms voltages on main bars in a ship power station with two generators operating in parallel

description: The presented dataset is part of research focusing on the assessment of metrological properties of the instrument,  Estimator/Analyzer (E/A v.2),  developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing the rms voltages on main bars in a ship power station.
The measurement setup is shown in Fig. 1.  A measurement system based on NI PXIe-1062Q was used as a reference instrument for the E/A instrument performance assessment.
The dataset file was created on the base of the selected data derived from two files:
E_A.txt (research data: Selected results of signal measurements in a ship power station with two generators working in parallel with the use of the Estimator/Analyzer instrument, R. Maśnicki D. Hallmann J. Mindykowski T. Tarasiuk M. Górniak M. Szweda, DOI:10.34808/dv88-sj58) and PXI.txt (research data: Selected results of measurements carried out in a ship power station with two generators working in parallel with the use of the NI PXIe-1062Q based measurement system, R. Maśnicki D. Hallmann J. Mindykowski T. Tarasiuk M. Górniak M. Szweda, DOI:10.34808/h2xb-8a23).  Raw data from these files, after appropriate calculations and after time synchronization of the obtained results, were used to determine the parameters included in the file.
The individual rows of data contain the rms values of line voltages on main bars in a ship power station with two generators (G1 andG2) operating in parallel, designated with a time step of 200 ms using data obtained from the E/A instrument as well as from the PXI system.  Fig. 1. The measurement setup
DOI: 10.34808/jx97-9d73
title: The hydrogen evolution reaction (HER) performance of some FTO/MoS2/SnO2 electrodes

description: To demonstrate the electrochemical performance of the FTO/MoS2/SnO2 for HER (hydrogen evolution reaction), the LSV (linear sweep voltammetry) was performed. The polarization curves of the obtained composite were measured in 1 M H2SO4 at room temperature with a scan rate 10 mV/s. For comparison, the LSV for the FTO, pure MoS2 and Pt plate electrode were also performed. The electrochemical measurements were carried out in a standard three-electrode setup. Ag/AgCl/0.1 M KCl was employed as the reference electrode and a Pt foil as the counter electrode. Before the electrochemical measurements, the electrolyte solution was purged with Ar for 1 h to remove completely the oxygen.
DOI: 10.34808/dmma-a547
title: The exemplary Kelvin probe microscopy studies of sensitized austenitic stainless steels

description: The dataset summarizes the results of imaging the surface potential distribution using the Kelvin probe scanning technique. Due to the fact that the potential measured in this way is proportional to the electrochemical potential of metals or intermetallic phases, it is possible to assess the nobility differences of various alloy components. In the case of the austenitic steel tested, local changes in the surface potential were found, which may indicate the appearance of ferrite as a result of incorrectly conducted heat treatment. The above-mentioned treatment is considered to be the sensitization of the material towards intergranular corrosion.
The files are in binary form, the contents are maps of various physical quantities in the two-dimensional spatial domain. The files can be accessed both with the Nova software included with NT-MDT microscopes and with the free Gwyddion software to be downloaded at http://gwyddion.net/.
DOI: 10.34808/cwyx-br19
title: Analysis of the instantaneous power signal for bearing diagnostics - bearing undamaged

description: The attached dataset contains the measurement results of the instantaneous values of current and voltage, recorded during the diagnostics of an undamaged bearing. Bearing diagnostics can be carried out based on the method, which relies on the measurement and analysis of the variability of the signal instantaneous power, defined as the product of instantaneous current and voltage power supplied to the engines.
Bearing damage causes the appearance of deformations, which are in the form of additional harmonic components of the spectrum. These components are formed as a result of waveform distortions by signals with frequencies specific for a given type of bearing damage. Relationships for determining these frequencies are known in the literature. Therefore, in the instantaneous power spectrum, there are components that can be used as a diagnostic symptom, on the basis of which it is possible to assess the technical condition of bearings in induction motors.
The method of performing diagnostic tests of bearing failures is based on the use of the product of the instantaneous current and voltage, spectral analysis of the resulting signal, and determining the frequency characteristic of the damage and identify them in the spectrum of instantaneous power. In the described method, the measurement is carried out by taking the signal, which is a measure of the current and voltage supplied to the machine.
The measuring stand used for bearing diagnostics consists of a tested engine, magnetic clutch, vibroacoustic dampers, whose task is to isolate the tested machines from the base on which the load is mounted, and a laser system for accurate shaft alignment. The laboratory stand allows measurements to be made for induction motors up to 5.0 kW.
The process of conditioning the current signal is performed using the current-voltage transducer LEM CT-5T (conversion ratio 5A/5V, and conditioning of the voltage signal is done by a voltage transducer LEM CV3-500 (conversion ratio 500V/10V). Then, both signals are fed to the measurement system, whose main component is the NI PXI 4462 data acquisition card installed in the NI PXI 1031 cassette measuring. Signals from the measurement cassette are transferred to a PC, where they are analyzed.
Machines STG80X-4C type were studied of the following parameters: Pn = 1.1 kW, Un = 400/230 V, In = 2.9/5.0 A. The measurements were performed for undamaged bearing. 6204 type of bearings were used in the tested machines.
Sample measurement results for the engine with undamaged bearing are presented. Measurements made for the rotational speed of the tested machine n = 1465 rpm, load 68% of nominal current In, sampling frequency 16384 Hz and spectrum resolution 1/32 Hz.
DOI: 10.34808/53dz-6t47
title: Sensory analysis of bread samples with the addition of beetroot

description: The data set presents the results of the sensory analysis of bread samples with the addition of beetroot, which was carried out by the sensory profiling analysis method based on the PN-ISO 11035: 1999 standard – “Sensory analysis - Identification and selection of descriptors for determining the sensory profile using multivariate methods”. The method was used to evaluate the maximum beet additive acceptable for a potential consumer. The description of the data within the file is in polish.
DOI: 10.34808/e52c-x613
title: The AFM micrographs of austenitic stainless steel subjected to sensitization for intergranular corrosion

description: The dataset contains atomic force microscopy (AFM) maps of topographic images of austenitic steel samples subjected to sensitization to the process of intergranular corrosion. Precipitations of carbides as well as other intermetallic phases can be observed and detected before the fragments of structures sensitized by improper thermal treatment are exposed to the corrosive environment.
The measurement results contained in the attached file were used in the work with the symbol doi: 10.1002/sia.5855
The files are in binary form, the contents are maps of various physical quantities in the two-dimensional spatial domain. The files can be accessed both with the Nova software included with NT-MDT microscopes and with the free Gwyddion software to be downloaded at http://gwyddion.net/.
DOI: 10.34808/xk25-9c74
title: The scanning tunnelling micrographs of highly oriented pyrolytic graphite

description: The dataset contains the results imaging of a sample of highly oriented pyrolytic graphite obtained using scanning tunneling microscopy. The above variant of scanning probe microscopy is one of the most convenient research techniques at atomic scales. The file contains images corresponding to increasing magnifications from the 1 um scale to a few nanometers. They allow to analyze the surface of a carbon sample at various scales showing the arrangement of planes with the structure of graphene and the arrangement of carbon atoms in the crystal lattice. The attached file comes from the didactic experiment.
The files are in binary form, the contents are maps of various physical quantities in the two-dimensional spatial domain. The files can be accessed both with the Nova software included with NT-MDT microscopes and with the free Gwyddion software to be downloaded at http://gwyddion.net/.
DOI: 10.34808/311t-d124
title: Curing characteristics of ground tire rubber modified by commercial additives

description: The presented results show the influence of commercially available bitumen and transoctenamer rubber (TOR) on the curing behavior of GTR treated by a peroxide. Samples were prepared using a two-roll mill– all in the same manner. After 24 hours of aging at ambient conditions, they were submitted to the curing analysis via Rheometer Monsanto 100S. The attached files concern curing curves data as well as crucial curing parameters set by the software.
DOI: 10.34808/8tyn-8523
title: Curing characteristics and Mooney viscosity of reclaimed rubbers

description: Presented data shows the difference in curing characteristics and Mooney’s viscosity between commercially available reclaimed rubbers and ground tire rubber (GTR) with specific particle size distribution cured with the same curing system and with the same manner. Samples were prepared using a two-roll mill. After 24 hours of aging at ambient conditions, they were submitted to the curing analysis via Rheometer Monsanto 100S and Mooney’s viscosity via Mooney MV 2000. The attached files concern curing curves, viscosity curves data as well as parameters set by the software.
DOI: 10.48370/ofd/lgfepk
title: Myodes glareolus - 3219, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-08-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/ivb0dw
title: Myodes glareolus - 10192, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-07, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/l81sza
title: Myodes glareolus - 779, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-05-14, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/fawpwz
title: Myodes glareolus - 72284, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1968-03-21, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/xp1sdv
title: Myodes glareolus - 163391, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1994-09-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.6084/m9.figshare.19839763
title: SeismicScatterDynamicModeling

description: This data set contains geodynamic model results that used to plot figures. Each column is x, depth, temeperature, C, Vx, Vz, viscosity, pyrolite composition, basalt composition, harziburgite composition, pre-existing seismic heterogeneity.
DOI: 10.48370/ofd/9qbxtf
title: Myodes glareolus - 168162, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 2002-04-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/uljpg3
title: Myodes glareolus - 44111, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1965-06-15, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/u03a8p
title: Myodes glareolus - 26526, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-11-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/7llmbd
title: Myodes glareolus - 168546, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 2002-09-18, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/llyxua
title: Myodes glareolus - 43282, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1965-05-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/8tbwnh
title: Myodes glareolus - 168601, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 2002-09-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/sucfuz
title: Myodes glareolus - 19858, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1958-03-05, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/cay0hs
title: Myodes glareolus - 99118, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1971-09-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/rhxmj8
title: Myodes glareolus - 40435, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1964-10-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/jrrbnh
title: Myodes glareolus - 30973, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1962-11-20, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/o12saj
title: Myodes glareolus - 2612, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-07-26, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/9q8fwl
title: Myodes glareolus - 168075, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 2001-09-25, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/frmlq5
title: Myodes glareolus - 26183, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1961-10-03, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/o4hair
title: Myodes glareolus - 9281, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-06-22, in: Białowieża National Park, Poland. Material type:
DOI: 10.48370/ofd/x3nku6
title: Myodes glareolus - 156153, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1987-10-03, in: Białowieża National Park, Poland. Material type: