Search
Filters
total: 17482
filtered: 2858
-
Catalog
- Publications 13297 available results
- Journals 422 available results
- Conferences 131 available results
- People 288 available results
- Inventions 1 available results
- Projects 9 available results
- Laboratories 1 available results
- e-Learning Courses 415 available results
- Events 27 available results
- Open Research Data 2891 available results
Chosen catalog filters
displaying 1000 best results Help
Search results for: DATA ANALYSIS METHODS
-
Total electrical conductivity data of (Cr,Fe,Mn,Co,Ni)3O4 High-entropy spinel oxide thin films deposited on amorphous SiO2 substrate by spray pyrolysis techniqe
Open Research DataThis dataset includes electrical conductivity measurements results measured by van der pauw technique up to 900oC.
-
Long-term hindcast simulation of sea ice in the Baltic Sea
Open Research DataThe data set contains the results of numerical modeling of sea ice over a period of 50 years (1958-2007) in the Baltic Sea. A long-term hindcast simulation was performed using a three-dimensional hydrodynamic model PM3D (Kowalewski and Kowalewska-Kalkowska, 2017), a new version of the M3D model (Kowalewski, 1997). A numerical dynamic-thermodynamic model...
-
Bacteria in the area of influence of sewage tretment plant Gdynia - Dębogórze
Open Research DataThe dataset contains the results of microbiological analysis of sea waters from Gulf of Puck in area of municipal sewage discharges from the Gdynia Dębogórze sewage treatment plant. The tested material consisted of water samples (surface water and bottom water) collected in 2012. The number of Enterobacteriaceae genus bacteria, number of Escherichia...
-
Influence of bio-polyols with different molecular weight on properites of PUR-PIR foams
Open Research DataThis work attempts to validate the possibility of replacing petrochemical polyols with previously synthesized bio-polyols and their impact on the structure and properties of rigid polyurethane-polyisocyanurate (PUR-PIR). The influence of bio-polyols addition on foam properties was investigated by mechanical testing, Fourier transform infrared spectroscopy...
-
Decomposition kinetics of vanadium xerogel powder
Open Research DataThe DataSet contains the TGA curves of vanadium As-prepared xerogel powder with different heating rates. The information about sol synthesis is described in the Journal of Nanomaterials.
-
Use of tax incentives and exemptions - study results
Open Research DataThe study was conducted on a group of 259 entrepreneurs from various regions of Poland. Tha analysis is concerned on aspects related to the level of use of tax incentives in companies. The results contain the following aspects: how often entrepreneurs benefit from tax breaks and exemptions and why are they reluctant to take economic and business advantage...
-
Valence state of Manganium in a MnCoO ceramics
Open Research DataManganium -cobalt based ceramics materials were produced by solid state reaction and sintred in a furnance in air atmosphere for 20h. Annealing temperature was 600 Celsius degree. For investigations a series of samples, with a various composition was chosen: MnCoO, Mn, Co2O and Mn2CoO. In order to determine valence states of the Mn, X-Ray photoemission...
-
Lanthanum investigations in ceramics annealed in a dry and wet atmosphere
Open Research DataCeramics based on Barium, Lanthanum, Gadolinium and Cobaltium were produced by standard solid state reaction from oxides and carbonate powders. After sintring, samples were annealed for 2 hours or 72 hours at 300 Celsius degree in a both: wet and dry atmosphere. Results of annealing on a chemical composition and valence state of lanthanum were observed...
-
Thermal behaviour of vanadium xerogel powder under different inert atmosphere
Open Research DataThe DataSet contains the results of the thermal behavior of the vanadium xerogel powder. The information about xerogel powder synthesis is described in the Journal of Nanomaterials.
-
Thermal stability of V2O5 nanorods under inert atmosphere
Open Research DataThe DataSet contains the TGA curves of V2O5 nanorods obtained at 650°C. The information about nanorods synthesis is described in the Journal of Nanomaterials.
-
Minimal number of periodic points for smooth self-maps of simply-connected manifolds
Open Research DataThe problem of finding the minimal number of periodic points in a given class of self-maps of a space is one of the central questions in periodic point theory. We consider a closed smooth connected and simply-connected manifold of dimension at least 4 and its self-map f. The topological invariant D_r[f] is equal to the minimal number of r-periodic points...
-
Stochastic intervals for the family of quadratic maps
Open Research DataNumerical analysis of chaotic dynamics is a challenging task. The one-parameter families of logistic maps and closely related quadratic maps f_a(x)=a-x^2 are well-known examples of such dynamical systems. Determining parameter values that yield stochastic-like dynamics is especially difficult, because although this set has positive Lebesgue measure,...
-
Thermal stability of vanadium xerogel powder under different atmpshere
Open Research DataThe DataSet contains the results of the thermal behavior of the vanadium xerogel powder. The information about xerogel powder synthesis is described in the Journal of Nanomaterials.
-
Instantaneous power signal measurements for bearing diagnostics
Open Research DataBearing 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...
-
Area specific resistance (at 800 °C - 500 °C) of the SrTi0.30Fe0.70O3 porous oxygen electrodes at different oxygen partial pressures
Open Research DataIn this dataset are presented results of the polarization resistance of SrTi0.30Fe0.70O3 porous oxygen electrodes sintered at 800 °C. The measurement temperature range was between 800 °C and 500 °C. Applied different oxygen partial pressure flow was: 1%, 20% and 100% pO2. Results converted to electrode surfaces area and dived by two electrodes. All...
-
X-ray images of Baltic herring
Open Research DataA methodology for studying the geometric shape of Baltic herring swimbladders including the optimal way of catching, transporting and storing fish, the X-ray measurements and the X-ray image analysis, that does not change the natural shape of the fish swimbladder was developed. Fish for research was obtained in the area of the Polish coastal zone...
-
The experimental results of sorption cycles
Open Research DataExperimental studies of sorption cycles were carried out using a prototype research stand, which is a laboratory-scale model of an adsorption chiller. The Intensified Heat Transfer Adsorption Bed (IHTAB) reactor is adapted to the analysis and optimization of various parameters of adsorption systems, e.g., constructions and compositions of adsorption...
-
XPS measurement of the Fe-Ti based materials
Open Research DataThe mono‐ and bimetal‐modified (Pd, Cu) titanium(IV) oxide and iron oxide (III) photocatalysts were prepared by chemical reduction method and characterized using XPS method. The composition of elements incorporated in the surface layer of mono- and bimetallic photocatalysts was determined by XPS analysis, as well as the valence state of elements. Measurements...
-
Experimental Study of the Influence of Noise Level on the Uncertainty Value in a Measurement System Containing an Analog-to-Digital Converter
Open Research DataFor newly developed measuring systems it is easy to estimate type B uncertainties based on the technical data of the measuring modules applied. However, it is difficult to estimate A type un-certainties due to the unknown type and level of interferences infiltrating into the measuring sys-tem. This is a particularly important problem for measurements...
-
The AC motor voltage and audible noise waveforms in ship’s electrical drive systems with frequency converters
Open Research DataThe 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.
-
Development of factors and measurement of personnel risk in the marketing services of four Polish pharmaceutical companies
Open Research DataThis text contains the presentation and analysis of research results in relation to four companies (A, B, C, D), according to the adopted case study method.Further considerations should be preceded by the assumption that personal risk factors often affect the level of this risk in various directions, so their final impact is the result of the shaping...
-
Ellipsometric monitoring during the polarization studies of Mg corrosion in alkaline environment
Open Research DataThe dataset contains the ellipsometric results from the Mg polarization studies aiming at understanding the Mg(OH)2 passive layer formation mechanism and conditions. The single-wavelength ellipsometer ELX-02C from Dr Riss GmbH was utilized, operating He-Ne laser at 632.8 nm. The polarization conditions for the experiment are depicted in the related...
-
Recurrence times in the Morse sets for a two-dimensional discrete neuron model (low resolution)
Open Research DataThis dataset contains selected results of rigorous numerical computations conducted in the framework of the research described in the paper “Topological-numerical analysis of a two-dimensional discrete neuron model” by Paweł Pilarczyk, Justyna Signerska-Rynkowska and Grzegorz Graff. A preprint of this paper is available at https://doi.org/10.48550/arXiv.2209.03443.
-
Surface modifcation of PMMA polymer detected by XPS
Open Research DataIn order to obtain the experimental specimens, four PMMA/PC61BM samples with the following mass proportions were prepared: 10%, 20%, 30%, and 40%. In addition, as a reference, a PMMA sample without PC61BM was prepared as well. For the fabrication process, PC61BM 99.5% (Solenne BV), chloroform HPLC (Sigma Aldrich), and PMMA (commercially available...
-
Temperture-programmed reduction (H2-TPR) of Ni-Mo2CTx_Mo2Ga2C and Ni-Mo2CTx_Mo3AlC2 catalysts
Open Research DataThe dataset includes the data for the preparation of plots illustrating the reduction peaks versus the temperature of the catalyst sample.
-
SEM image and EDS map of SrTi0.50Fe0.50O3-d powder aglomerate
Open Research DataThis dataset contains image of the SrTi0.50Fe0.50O3-d powder aglomerate with EDS map analysis results. Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 10 kV in a high vacuum mode. The chemical compositions of the investigated powder were determined...
-
SEM image and EDS map of SrTi0.65Fe0.35O3-d powder aglomerate
Open Research DataThis dataset contains image of the SrTi0.65Fe0.35O3-d powder aglomerate with EDS map analysis results. Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 10 kV in a high vacuum mode. The chemical compositions of the investigated powder were determined...
-
Changes in the structure of foreigners registered for retirement and disability pension insurance by citizenship (%) - as at the end of the year
Open Research DataThe analysis of employment of foreigners carried out by the National Labor Inspectorate showed that on the basis of a contract for specific work in 2014, 15% of foreigners subjected to control were employed (as much as 65% in the agricultural sector). It is worth emphasizing that employing foreigners on the basis of specific work contracts is not justified...
-
SEM image and EDS map of SrTi0.30Fe0.70O3-d powder aglomerate
Open Research DataThis dataset contains image of the SrTi0.30Fe0.70O3-d powder aglomerate with EDS map analysis results. Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 10 kV in a high vacuum mode. The chemical compositions of the investigated powder were determined...
-
The 3d Ce XPS spectra of Ce0.9M0.1O2
Open Research DataThe dataset consists of 3d Ce XPS of Ce0.9M0.1O2 where (M=Mn, Fe, Co, Ni, Cu). X-ray Photoelectron Spectroscopy analysis (XPS) was performed using X-ray photoelectron spectrometer Omnicron NanoTechnology with 128-channel collector. XPS measurements were undertaken in ultra-high vacuum conditions, below 1.1x10-8 mbar. Photoelectrons were excited by an...
-
Chemical composition of V2O5 nanorods
Open Research DataThe DataSet contains the chemical compositions of the V2O5 nanorods on a silicon substrate. The thin films were obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The As-prepared thin films were annealed at 600C under a synthetic air atmosphere.
-
Thermal behaviour of vanadium xerogel powder and V2O5 nanorods under helium atmosphere
Open Research DataThe DataSet contains the results of the thermal behavior of the vanadium xerogel powder and V2O5 nanorods obtained at 650C. The information about xerogel powder and V2O5 nanorods synthesis is described in the Journal of Nanomaterials.
-
Autodesk AUTOCAD file with the dome's geometry outline
Open Research DataThis dataset consists of an Autodesk AUTOCAD file with the dome's geometry outline.The studies carried out in the "Miniatura 7" scientific grant were devoted to both experimental and theoretical (numerical) measurements executed on a tensegrity dome model (with a Fuller-type grid) to identify the changes in the state of displacements, induced by the...
-
SEM micrographs and photos of salivary gland stones
Open Research DataThis dataset contains SEM micrographs and high-resolution photographs taken for salivary gland stones (sialolith) extracted during joint studies between Medical University of Gdansk and Gdansk University of Technology.
-
SEM image and line EDS of SrTi0.50Fe0.50O3-d porous electrode sintered at 800 °C
Open Research DataThis dataset contains image of the SrTi0.50Fe0.50O3-d porous electrode sintered at 800 °C with line EDS analysis results. Images were obtained using a PhenomXL (Thermo Fisher Scientific, the Netherlands) scanning electron microscope (SEM) with an accelerating voltage of 20 kV in a high vacuum mode. The chemical compositions of the investigated powder...
-
Valorization of bio-based polyols synthesized via biomass liquefaction
Open Research DataAs the properties of polyols have a huge impact on the properties of manufactured polyurethanes, this study aims to determine the influence of polyethylene glycols with different molecular masses on the course of the biomass liquefaction process and bio-polyol properties. The obtained polyols were characterized by rheological studies. To confirm the...
-
The 2p XPS spectra of transition metals in Ce0.9M0.1O2
Open Research DataThe dataset consists of 2p XPS spectra of transition metals in Ce0.9M0.1O2 where (M=Mn, Fe, Co, Ni, Cu). X-ray Photoelectron Spectroscopy analysis (XPS) was performed using X-ray photoelectron spectrometer Omnicron NanoTechnology with 128-channel collector. XPS measurements were undertaken in ultra-high vacuum conditions, below 1.1x10-8 mbar. Photoelectrons...
-
Thermal properties of VO2 and V2O3 nanostructures
Open Research DataThe DataSet contains the DSC and TG curves of VO2 and V2O3 nanostructures obtained by the sol-gel with different reaction conditions. The information about xerogel powder synthesis is described in the Journal of Nanomaterials. The xerogel powder was annealing under argon atmosphere at the selected temperature: 500C, 600C, and 1000C.
-
The initial FEM model of the dome assembled in SOFiSTiK FEA (2020) software
Open Research DataThis dataset consists of an archive with the (selected) files of the initial FEM model of the dome assembled in SOFiSTiK FEA (2020) software.
-
The files from COMREL software used in the numerical reliability assessment of the imperfect dome's displacements
Open Research DataThis dataset consists of an archive with the files from COMREL software used in the numerical reliability assessment of the imperfect dome's state of displacements.
-
Photos and movies regarding the dome's real-life model assembly and tests
Open Research DataThis dataset consists of an archive with the photos and movies regarding the dome's real-life model assembly and tests.
-
SYNAT Music Genre Parameters PCA 19
Open Research DataThe 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 DataThere 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 DataThe 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...
-
Ljung-Box test values of selected companies of the Warsaw Stock Exchange
Open Research DataThe following dataset includes the Warsaw Stock Exchange market analysis using the Ljung-Box test. Partial autocorrelations up to the 5th order were analyzed, because it will allow to observe the relationship within one week of stock exchange quotations. In the case of the WIG index, the 1st and 2nd order correlation turned out to be statistically significant....
-
Temperature of formation of Au nanostructures
Open Research DataNanostructures were obtained via annealing of thin Au films. In order to determine possible nanoislands formation mechanisms, dependence on initial film thickness was examined. For the surface morphology studies, nanograin structure and chemical composition analysis, SEM, HR TEM and EDS measurements were performed, respectively. Morphology studies shown...
-
Microbiological condition of sediments and bottom water in the area of Gdańsk Deep in Gulf of Gdańsk
Open Research DataThis dataset contains the results of microbiological analysis of bottom water and bottom sediments in the area of Gdańsk Deep in Gulf of Gdańsk. The tested samples were collected at 5 sites on 15th of December 2007. 5 samples of bottom water and 10 samples of sediments were collected for microbiological testing. Each of these samples were analysed for...
-
Chemical and structural studies of screen-printed carbon electrodes (SPCE) with boron-doped diamond foils
Open Research DataThis dataset contains chemical analyses and structural studies by XPS and Raman spectroscopy, carried out for SPCE containing boron-doped diamond BDD foils done with scanning electron microscope. Different points for XPS analysis mark different electrode spots: A) working electrode, B) reference electrode, C) counter electrode, D) pads.
-
The XRD diffraction patterns of as-prepared (La0.3Sr0.6Ce0.1)0.9Me0.1Ti0.9O3-δ (Me= Co, Cu, Fe, Mn, Ni) materials synthesized via the solid state reaction method
Open Research DataThe (La0.3Sr0.6Ce0.1)0.9Me0.1Ti0.9O3-δ (Me= Co, Cu, Fe, Mn, Ni) materials were synthesized via the solid state reaction method and examined as a potential anode material. First, the mixed oxide reagents were pressed into pellets and calcined at 1200 °C for 12 hours to decompose most of the organic compounds. The resulting calcined pellet was ground...
-
Results of timber material tests from a strength testing machine
Open Research DataThis dataset consists of an archive with TRA files with the results of timber (wooden rolls) material tests from an universal strength testing machine.