cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34808/z0de-vc67
title: Equilibrium constants (Keq) of reforming reactions

description: The equilibrium constants (K) of reforming reactions in SOFC were supplied with this dataset 
The equilibrium reation constants (Keq) were calculated for the following reforming reactions in the temperature range of 0-1000 degC. All of the calculations were performed using HSC Chemistry software according to Gibbs energy minimalization model.
DOI: 10.34808/8k1b-n619
title: The AFM topographic measurements of the surface heterogeneity of iron hexacyanoferrate on a steel surface

description: Measurements in semi-contact mode. NTEGRA Prima (NT-MDT) device. NSG 01 probe.
Prussian blue is widely used in industrial applications as a dye, complexing agent, or zeolite. It is also used as a substance modifying the surface properties of electrodes used in sensor technology. The method of operation of this type of electrode is significantly influenced by the layer distribution of the discussed compound on the substrate, the degree of coverage, and its roughness. The attached file presents the results of topographic scanning using an atomic force microscope. The results make it possible to answer the question of how the distribution of the complex compound takes place on the metallic substrate and how its porosity changes depending on the parameters of the application process. The file contains 10 images.
DOI: 10.34808/3qdy-xn69
title: ArchBGal32cB 441Glu mutein gene analysis dataset

description: The file named "ArchBGal32cB 441Glu mutein gene analysis" contains information about confirming the introduction of a DNA sequence change into the ArchBGal32cB gene resulting in the recombinant protein changing the glutamic acid residue at position 441 to glutamate
The dataset called "Sequencing results - ab1 format files" contains DNA sequences (obtained during DNA sequencing) in the form of chromatogram readings saved in the .ab1 format.
The dataset named "Sequencing Results - Seq Format Files" contains DNA sequences of the fragments of the ArchBGal32cB 441Glu mutein gene (text format).
DOI: 10.34808/61t5-2712
title: Testing high impedance analyzer in the field on high-voltage line pylon cell 2 exposition 2

description: The dataset presents impedance spectrum of anticorrosion coating on high-voltage line pylon presented in the figure below. This object was used to test high-impedance analyzer for diagnostic of anticorossion coatings (HIADAC) realized in the frame of Eureka project E!3174.  The dataset contains comparative measurements with Atlas-Sollich ATLAS98HI analyser. The impedance spectrum frequency range (0.1 Hz – 100 kHz) was selected in order to test the whole measureement range of the analyzer as well as to limit measurement time. In this dataset, the DC polarisation was set to 0 V and AC amplitude was 1 V. The dataset presents results acquired after 4 hours of exposition (additional 2h in relation to exposition 1) on the second (bottom) cell . The 3% NaCl solution was used as an electrolyte.  Top-left figure presents impedance modulus and top-right figure presents impedance angle for the bottom cell presented in bottom-left figure.
DOI: 10.34808/dqhy-d295
title: WRF-METEOPG: numerical weather forecast data for Poland - Days 1-7, Year 2021

description: WRF-METEOPG is a numerical weather forecast system developed at the Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Poland. The system was built on the basis of the Weather Research and Forecast model version 4.2 and implemented at Centre of Informatics Tricity Academic Supercomputer & Network. Physics parametrization and model dynamics have been adjusted to the weather conditions prevailing in Poland. Also, a whole geographical database (topography, land cover, etc.) has been redefined using, e.g. CORINE and SRTM data. As initial and boundary conditions GFS model with 0.25° spatial resolution is used or, when GFS is unavaialble, ICON-EU with 6.5 km resolution.This dataset contains weather forecast data for the days 1-7 of the year 2021 (January 1 - January 7, 2021). For each day, the simulations were started at 00 and 12 UTC with the forecast range equal 60-hours. Data are stored in grib2 file format with 1-hour temporal and about 2.5 km spatial resolutions for whole area of Poland. Dataset contains basic meteorological parameters such as 2-meter temperature, surface and sea level pressure, precipitation, cloud cover, wind speed and gusts. Detailed information about available parameters and dataset structure can be found in the readme file attached to the dataset.
Calculations were carried out at the Academic Computer Centre in Gdansk under the project "Parameterization and development of a high-resolution mesoscale WRF numerical weather model with assimilation of meteorological and GNSS data".
DOI: 10.34808/k206-rc65
title: Electrical measurement data for SOFC fueled by H2 and biogas mixture at 750 C

description: The dataset contains the Electrical measurement data for SOFC fueled by H2 (30h) and biogas mixture at 750 C (60:40 CH4:CO2). The investigation of long-term electrical stability was performed during initial SOFC feeding with hydrogen (for 30 h) and further with biogas (for 90 h). The electrical properties of the fuel cell were measured using the HAMEG 8143 power supply.
DOI: 10.34808/j2pm-ws11
title: Split-beam echosounder data from Puck Bay winter 2019

description: 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 the route Hel - Mechelinki, while the ship was sailing. To ensure data quality, echosounders were calibrated and passive noise was measured.
DOI: 10.34808/ded5-xq67
title: DLC coating doped with W in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 20MPa/0.1m/s

description: Wear tests in sliding friction of 1% W (tungsten) doped DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 20MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time &gt;15h. The test was augmented by vibration monitoring performed in real time (low sampling frequency) and in burst mode (high frequency) at 4 h intervals. Secimen numbers: A118 (top, rotating), B121 (bottom, non-rotating).Data format: Matlab. Data condition: unprocessed.Files (by name types):Akc1.mat, Akc2.mat etc. - full length, low resolution vibration amplitude monitoringAkc11.mat, Akc21.mat etc. - burst mode vibration recording, high resolution vibration monitoringLOAD.mat - normal force dataMOMENT.mat - friction force/torque dataTACHO.mat - rotational velocity (spindle RPM)/sliding velocityTEMP.mat - lubricant temperature dataAll matlab type files contain metadata describing calibration functions (polynomial) for conversion from raw digital signal to physical units, sampling frequency and type of physical unit corresponding to the given data channel.
DOI: 10.34808/zpyc-ga35
title: Impedance spectra of ZnO varistor type 680 model A M ver. 93

description: The impedance spectrum of high-voltage ZnO varistor obtained using FRA EIS impedance spectrosocpy measurement method. The 1V sinusoidal excitation was used. The frequency range was chosen from 10 kHz down to 100 uHz. The object under test and the measuring instrument were placed in a Faraday cage due to high impedance of the object. The data was acquired using Atlas-Sollich 0441 High-impedance Analyser. The varistor details were described in the referenced paper. The graph presents measurement points (blue asterisks) and results of model fitting (red squares)
Rg=(757±265)Mohm; R=(69,5±0.8)Gohm; C=(2,73±0,06)nF;
DOI: 10.34808/4vzx-0y14
title: Methane (CH4) calibration set of FTIR spectra

description: The calibration spectra for CH4 concentration calibration were supplied with this dataset 
Description of the procedure:
"In the calibration procedure, the system shown in Fig. 2 was used. The calibration mixture was composed of a dilution gas (Ar) mixed with CO2, CO or CH4. The concentration of these gases was varied using two mass flow meters. Such setup allowed obtaining particular calibration points. The resulting mixture was delivered directly to the FTIR cell. The measurement was carried out using the PerkinElmer Spectrum 100 spectrometer with a 10 cm path length gas cell and ZnSe windows. The spectra were collected at 4 cm1 resolution. At the beginning of the investigation, the FTIR cell was purged with argon. Then the desired mixture of gases with a total flow of 30 ml/min was supplied to FTIR for 10 min in order to reach a stable gas composition. Next, ten spectra were collected at every 2 min." (10.1016/j.ijhydene.2019.03.243)
DOI: 10.34808/vnte-3f43
title: TEM micrographs of ammonium vanadate nanocrystals

description: The DataSet contains the TEM images of ammonium vanadate nanobelts obtained by the hydrothermal method with different conditions. The results show that the microstructure of an ammonium vanadate single nanobelt dependent on reaction condition.
The surface morphologies of the samples were studied by an FEI TECNAI G2 F20 transition electron microscopy (TEM).
These results are part of a project defined in Electrochimica Acta journal (10.1016/j.electacta.2020.135919). In this paper the information about samples and synthesis details are reported.
DOI: 10.34808/kfaf-9h47
title: Impedance spectra of ZnO varistor type 680 model O M ver. 65 13

description: The impedance spectrum of high-voltage ZnO varistor obtained using FRA EIS impedance spectrosocpy measurement method. The 1V sinusoidal excitation was used. The frequency range was chosen from 10 kHz down to 100 uHz. The object under test and the measuring instrument were placed in a Faraday cage due to high impedance of the object. The data was acquired using Atlas-Sollich 0441 High-impedance Analyser. The varistor details were described in the referenced paper. The graph presents measurement points (blue asterisks) and results of model fitting (red squares)
Rg=(752±267)Mohm; R=(70,2±0,8)Gohms; C=(2,65±0,06)nF;
DOI: 10.34808/8c7a-6y59
title: EH36 steel for shipbuilding (plate thicnkness 40 mm) - CMOD - force record, a0/W = 0.5

description: The basic method of ductility designation of structural steels is the Charpy impact test. The test consists of a single strike of the specimen using a Charpy pendulum. Its result is the value of work necessary to break a specimen at a test temperature. Despite its many advantages, such as its short implementation time and low costs, it has its disadvantages, in particular:
• strong influence of notch geometry on the test result, which means that impact strength cannot be considered as an unambiguous material property,
• milled notches are not repeatable because the cutter wears,
• regardless of the thickness of the material being tested, samples of the same size are used.
Due to these disadvantages, for very responsible ship and ocean engineering constructions, such as: continuous longitudinal coamings of the largest container ships, or supporting components of drilling platforms, tests are carried out basing on fracture mechanics. For shipbuilding industry, CTOD (Crack Tip Opening Displacement) is, the most often, desired value. The test CTOD is performed by slowly bending the specimen with record of the slit opening. Before performing the test, it is necessary to know the material properties (from a tensile test). The final stage of the test is the measurement of the initial fatigue fracture geometry.
The dataset contains the CMOD (Crack Mouth Opening Displacement) - Force for a Bx2B (B = 40 mm) bend specimen, a0 / W = 0.50 from EH36 steel from shipbuilding. The test was carried out at room temperature.
DOI: 10.34808/8d63-sr91
title: Policy of supporting scientific and research activities in selected private universities in Gdańsk, Sopot and Gdynia in 2010

description: As the research results show, all surveyed universities support research primarily by helping to obtain funds from the EU and providing resources for scientific literature. 6 universities declare financing investments in equipment and activities supporting research, as well as assistance in obtaining funds from other sources. However, none of the universities helpsin obtaining grants.
DOI: 10.34808/4k9x-d431
title: Testing high impedance analyzer in the field on high-voltage line pylon cell 1 exposition 2

description: The dataset presents impedance spectrum of anticorrosion coating on high-voltage line pylon presented in the figure below. This object was used to test high-impedance analyzer for diagnostic of anticorossion coatings (HIADAC) realized in the frame of Eureka project E!3174.  The dataset contains comparative measurements with Atlas-Sollich ATLAS98HI analyser. The impedance spectrum frequency range (0.1 Hz – 100 kHz) was selected in order to test the whole measureement range of the analyzer as well as to limit measurement time. In this dataset, the DC polarisation was set to 0 V and AC amplitude was 1 V. The dataset presents results acquired after 4 hours of exposition (additional 2h in relation to exposition 1). The 3% NaCl solution was used as an electrolyte.  Top-left figure presents impedance modulus and top-right figure presents impedance angle for the top cell presented in bottom-left figure.
DOI: 10.5281/zenodo.4748733
title: Nitrogen Fertilizer Effects on Pea–Barley Intercrop Productivity Compared to Sole Crops in Denmark

description: Data on the final figures and tables for associated publication.
DOI: 10.34808/dbwt-xq51
title: EH36 steel for shipbuilding (plate thicnkness 40 mm) - CMOD - force record, a0/W = 0.6

description: The basic method of ductility designation of structural steels is the Charpy impact test. The test consists of a single strike of the specimen using a Charpy pendulum. Its result is the value of work necessary to break a specimen at a test temperature. Despite its many advantages, such as its short implementation time and low costs, it has its disadvantages, in particular:
• strong influence of notch geometry on the test result, which means that impact strength cannot be considered as an unambiguous material property,
• milled notches are not repeatable because the cutter wears,
• regardless of the thickness of the material being tested, samples of the same size are used.
Due to these disadvantages, for very responsible ship and ocean engineering constructions, such as: continuous longitudinal coamings of the largest container ships, or supporting components of drilling platforms, tests are carried out basing on fracture mechanics. For shipbuilding industry, CTOD (Crack Tip Opening Displacement) is, the most often, desired value. The test CTOD is performed by slowly bending the specimen with record of the slit opening. Before performing the test, it is necessary to know the material properties (from a tensile test). The final stage of the test is the measurement of the initial fatigue fracture geometry.
The dataset contains the CMOD (Crack Mouth Opening Displacement) - Force for a Bx2B (B = 40 mm) bend specimen, a0 / W = 0.60 from EH36 steel from shipbuilding. The test was carried out at room temperature.
DOI: 10.5281/zenodo.4748732
title: Nitrogen Fertilizer Effects on Pea–Barley Intercrop Productivity Compared to Sole Crops in Denmark

description: Data on the final figures and tables for associated publication.
DOI: 10.34808/vncn-rk05
title: The SEM micrographs of the cavitation erosion-corrosion process of selected copper alloys degradation

description: 



The dataset contains Scanning Electron Micrographs of CuZn40Mn3Fe brass compared with Superston and Novoston bronze after cavitation erosion-corrosion exposure using a vibratory transducer (in accordance with ASTM G32). The micrographs compare the topography of samples subjected cavitation erosion in 3% NaCl at room temperature, leading to the surface deformation combined with intergranular corrosion. The micrographs were taken after various exposure duration between 10 and 240 min, labeled accordingly, with cyclic cavitation exposure in on/off cycles 60s:60s. The samples were mounted directly underneath the ultrasonic transducer. More details on the experiment are to be found in: 10.1016/j.electacta.2016.01.216
DOI: 10.34808/a0yn-7p63
title: Determination of changes in viscosity of pectin gel depending on shear rate (1.1 to 55 s-1).

description: The rheological characteristic of pectin gel (with concetration 0,45% m/m,  in three independent repetition of sample) was made on the basis of a viscosity measurement using a Brookfield viscometer, using LV SC4 - 25 spindle and shear rates from 1.1 to 55 s-1.The data allowed to characterize the used hydrogel preparations and assess their functional parameters as substances modifying the rheology of thickeners.
DOI: 10.34808/rect-5e75
title: Number of students per one lecturer in the academic year 2010/2011 at Polish univeristies

description: As at the end of December 2010, 103.5 thousand academic teachers worked in universities  (full-time and part-time equivalent to full-time employment), including 1.9 thous. foreigners. Teachers working in public schools accounted for almost 82.7% of the total number of employees in higher education, and lecturers from non-public universities - 17.3%. Compared to the previous year, there was a slight increase in the number of academic teachers working in universities (by 0.1%), which, combined with a decrease in the number of students (by 3.1%), should improve the availability of teaching staff for students. In this respect, the situation of public universities is much better than that of non-public universities (nearly 15 and 32 students per lecturer, respectively). Moreover, art schools, medical universities and colleges of theology stand out positively, with less than 10 students per one academic teacher, while in higher economic schools the number of students per one teacher is 31.
DOI: 10.34808/dp3d-wq26
title: Integrated circuit structure surface images obtained with contact capacitive imaging technique

description: The measurements were done using NTEGRA Prima (NT-MDT) device. CSG 10Pt probe.
Scanning capacitance microscopy (SCM) is a type of scanning probe microscopy in which a probe is placed in contact with or in close proximity to the sample surface and scanned. The SCM characterizes the sample surface on the basis of information obtained from the change in capacity between the surface and the probe. Applications of the SCM technique include the mapping of the doping profile in semiconductor devices and the assessment of local dielectric properties in insulating layers. The presented images refer to the study of the dielectric properties of the protective conformal coating on the surface of an integrated circuit. The file contains 66 images.
DOI: 10.34808/tpx7-j987
title: Electrical properties of lead-borate glasses and glass-ceramics containing iron ions

description: Electrical properties were studied for borate-lead glasses and glass-ceramics doped with iron ions. Glass samples of composition of xFe2O3–(100 − x)(B2O3–2PbO) (2.5 b x b 37, in mol%) were prepared by the conventional melt quenching technique. The melting was conducted in alumina crucibles at the temperature of 1523 K. The melts were poured on a preheated (573 K) brass plate and pressed by an another plate to obtain flat circular samples of 1–2 mm thickness and 20–30 mm in diameter. The quenched pellets were annealed at the temperature of 673 K for 3 h and cooled with the furnace. For the electrical measurements gold electrodes were evaporated at the preheated samples. Impedance measurements were carried out in the frequency range from 1 mHz to 1 MHz with the ac voltage of 1 V rms in the temperature range from 153 K to 423 K with the Concept 40 broadband dielectric spectrometer. Detailed information you can find in: http://dx.doi.org/10.1016/j.ssi.2014.01.042
DOI: 10.34808/6qyq-ax59
title: Euilibrium composition of CH4-CO2-CO-H2-H2O-C system under biogas reforming conditions

description: The equilibrium compositions  of  CH4, CO2, CO, H2, H2O and C under the biogas mixture reforming were supplied with this dataset 
The equilibrium composition was simulated for biogas (60CH4:40CO2 by vol + 3vol.% H2O) in range of 0-1000 degC. All of the calculations were performed using HSC Chemistry software according to Gibbs energy minimalization model.
DOI: 10.34808/q3zh-f475
title: DLC coating in ring-on-ring sliding with water lubrication 10MPa/0.1m/s

description: Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 10MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: WATER. Tribometer: PT-3. Overall test time &gt;15h. The test was augmented by vibration monitoring performed in real time (low sampling frequency) and in burst mode (high frequency) at 4 h intervals. Secimen numbers: A27 (top, rotating), B29 (bottom, non-rotating).Data format: Matlab. Data condition: unprocessed.Files (by name types):Akc1.mat, Akc2.mat etc. - full length, low resolution vibration amplitude monitoringAkc11.mat, Akc21.mat etc. - burst mode vibration recording, high resolution vibration monitoringLOAD.mat - normal force dataMOMENT.mat - friction force/torque dataTACHO.mat - rotational velocity (spindle RPM)/sliding velocityTEMP.mat - lubricant temperature dataAll matlab type files contain metadata describing calibration functions (polynomial) for conversion from raw digital signal to physical units, sampling frequency and type of physical unit corresponding to the given data channel.
DOI: 10.34808/qqyn-px12
title: The structure of revenues of non-public universities in 2010 from didactic activity by sources of financing (in%)

description: Income from teaching activities of non-public universities accounted for almost 1/5 of income from teaching activities of all types of universities. Non-public universities generated the highest revenues from fees for teaching classes, which accounted for over half of the revenues from this title in relation to all universities.The average cost of education is calculated by dividing the total cost of education at the university by the number of conversion students. Total education costs are calculated in two variants:a) Option I - as the sum of own costs of basic operating activity, own costs of research activity and separated economic activity, used fund of financial aid for students and own scholarship fund;b) Option II - as a sum of own costs of teaching activities, the fund of financial aid for students and own scholarship fund.In 2010, the own costs (calculated according to variant I) of non-public higher education institutions accounted for 15.6% of the cost of education in Poland. This share for public universities is much higher and amounts to 84.4%. According to the calculation according to variant II, the costs of non-public universities accounted for 17.4% of the costs of education in Poland.
DOI: 10.34808/9xq6-9z10
title: Assessment of the activities of private universities in the context of quality management in 2010

description: In all universities, the assessment of the quality is made by the supervisor, the opinion of students and the admission of classes have the greatest impact on the assessment of the quality of education. Subsequent tracking of the student's fate has a slightly smaller impact on the grade. Research also shows that only 4 out of 7 respondents monitor the so-called placement rate, i.e. the rate of employed graduates.
The quality of education is assessed both by internal university units and by external institutions.