cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34808/g44h-0b73
title: Uniform expansion estimates in the unimodal map with γ=1.5 as a function of the parameter

description: This dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.
Using an approach based on graph algorithms described in the paper, comprehensive computation was conducted to obtain a lower bound on the expansion exponent λ (Statement 1 in the paper), the constant C (Statement 1 in the paper), and the adjusted exponent λ0 (Statement 2 in the paper). The size of the partition into which the domain of the map was subdivided is denoted by K. The radius of the critical neighborhood is denoted by δ. The key parameter of the map is denoted by a. The parallelization framework introduced in the paper "Parallelization method for a continuous property" by P. Pilarczyk, as published in Foundations of Computational Mathematics, Vol. 10, No. 1 (2010), 93–114, doi: 10.1007/s10208-009-9050-8, was used in order to use several CPUs at a time. Note that the data records are not sorted.
In this specific computation, the unimodal map with γ=1.5 was analyzed with K=5000, δ=0.05, and a∈[0.67,1]. Note that the computations were not mathematically rigorous.
The data is provided in plain text format. Each line with comments begins with a semicolon, each line with a single data record begins with an asterisk. Each data record consists of the following items, separated with the space:
the asterisk that indicates the beginning of a data record
the identifier of the data record in the format level:number (e.g., 4:12)
the left endpoint of the parameter interval (minimal parameter value)
the right endpoint of the parameter interval (maximal parameter value)
the total number of intervals that cover both the critical neighborhood and the remainder of the domain of the map
the diameter δ of the critical neighborhood
the computed expansion exponent λ
the computed value of log C (0 if not computed)
the computed value of λ0 (0 if not computed)
the computation time (in seconds)
The actual software that was used to obtain the results and also some illustrations are available at http://www.pawelpilarczyk.com/unifexp/.
DOI: 10.34808/yq1s-sn98
title: Forest habitat types in the State Forests in Polish provinces in years 2014- 2018

description: The dataset contains data illustrating changes in forest habitat structure occurring between 2019 and 2023 in various provinces of Poland. It should be noted that this only concerns forests managed by the State Forests National Forest Holding. The term forest area refers to the area of forests excluding land related to forest management. The main source of information for the study is the Forest Data Bank (www.bdl.lasy.gov.pl).
The habitat types included in the dataset are:

Bb – swamp forest
BbG – mountain swamp forest
BG – mountain forest
BMb – mixed swamp forest
BMG – mixed mountain forest
BMśw – fresh mixed forest
BMw – moist mixed forest
BMwyż – upland mixed forest
Bs – dry forest
Bśw – fresh forest
Bw – moist forest
BWG – mountain moist forest
LG – mountain forest
Lł – riparian forest
LłG – mountain riparian forest
Lłwyż – upland riparian forest
LMb – mixed swamp forest
LMG – mixed mountain forest
LMśw – fresh mixed forest
LMw – moist mixed forest
LMwyż – upland mixed forest
Lśw – fresh forest
Lw – moist forest
Lwyż – upland forest
Ol – alder forest
OlJ – ash-alder forest
OlJG – mountain ash-alder forest
OlJwyż – upland ash-alder forest

Types of vertical stand structure:

KO – regeneration class
KDO – pre-regeneration class
BP – structure
DOI: 10.34808/c840-rv88
title: Bacteriological and physicochemical monitoring of coastal sea waters – Gulf of Gdańsk (Baltic Sea) in 2007

description: The dataset contains the results of a bacteriological and physicochemical studies of Gdansk Bay coastal waters within the administrative boundaries of Gdańsk city in 2007. The examined material consisted of water samples collected from 15 sampling points. Number of Escherichia coli, number of intestinal enterococci, presence of Salmonella sp., pH, temperature, water visibility, BOD5 and concentration of dissolved oxygen were determined.
DOI: 10.34808/ekh1-nr60
title: Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,0 V at 420 mA. Sample 103, run #1.

description: Dataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,0 V and discharged to 10 mV by constant current 420 mA.  Sample 103, experiment run #1. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission. For sample charging and discharging the ATLAS 1361 MPG&T was used.The sample is in a form of triplex envelope (6 cm x 7 cm) with active structure (2,5 cm x 4 cm) inside and electrodes contacts at one of envelope edge.The ASCII text data file consists of images acquired within a fixed period of measurement, T = 60 sec. The recorded image is a matrix containing 388 x 288 temperature data. Each image is preceded with header with image number, date and time of acquisition.
DOI: 10.34808/ppyg-gn76
title: Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 3,2 V at 420 mA. Sample 103.

description: Dataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 3,2 V and discharged to 10 mV by constant current 420 mA.  Sample 103. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission. For sample charging and discharging the ATLAS 1361 MPG&T was used.The sample is in a form of triplex envelope (6 cm x 7 cm) with active structure (2,5 cm x 4 cm) inside and electrodes contacts at one of envelope edge.The ASCII text data file consists of images acquired within a fixed period of measurement, T = 60 sec. The recorded image is a matrix containing 388 x 288 temperature data. Each image is preceded with header with image number, date and time of acquisition.
DOI: 10.34808/pw5b-hr02
title: Video of LEGO bricks on conveyor belt - flags and signs

description: 

The set contains videos of LEGO bricks (flags and signs) moving on a white conveyor belt. The images were prepared for training neural network for recognition of LEGO bricks. The bricks were separated as much as possible and in most cases they should not overlap. The images were taken from different sides by stationary camera located over the final conveyor belt.
 
The videos were recorded using Huawei p20 Pro camera (1920x1080 resolution, H.264 high profile codec, 15 frames per second) located 14.5 cm over the belt. The bricks have random colors.
 
Sample images are presented below.
DOI: 10.34808/hgtn-0436
title: WRF-METEOPG: numerical weather forecast data for Poland - Days 176-182, 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 176-182 of the year 2021 (June 25 - July 1, 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/hyt9-q793
title: The conducted immunity test of a power supply unit in the frequency range from 19 MHz to 26 MHz for the RF voltage level of 10 V

description: The dataset presents a result of measurements that are a part of immunity tests to conducted disturbances, induced by radio-frequency fields. The immunity tests were carried out on the mains cable of the DF1723003TC NDN power supply unit. Tests of immunity of electronic systems to conducted disturbances in the frequency range from 19 MHz to 26 MHz were performed under the requirements specified in the electromagnetic compatibility (EMC) standards. Immunity tests were carried out for the RF voltage level of 10 V. The output voltage generated by the power supply unit was 1 V and 10 V respectively.
The source of the disturbance is an electromagnetic field coming from the integrated signal generator Teseq NSG 4070-45, equipped with a built-in 45 W class A power amplifier module. The coupling-decoupling network CDN M016 directly injects RF voltages into the cables under test. During the measurements, on the Rohde&Schwarz RTE 1102 oscilloscope, the differences in the shape of the voltage waveform from the output of the power supply unit to the reference waveforms recorded with the RF signal generator turned off were being observed. The power supply unit and the oscilloscope were connected to the network via artificial networks Rohde Schwarz ENV432. The measurement process was controlled by the WIN 6000 software installed on a personal computer connected to the signal generator via the IEEE488 interface. The test setup is shown in Fig.1.
The normative test procedure is carried out in the frequency range from 150 kHz to 230 MHz. The RF signal is modulated with a 1 kHz sinusoidal tone at 80% depth. By analyzing the results of standard immunity tests presented in [Kwiatkowski, M., & Pałczyńska, B. (2021). The conducted immunity test of a power supply unit in accordance with EMC standards [Data set]. Gdańsk University of Technology. https://doi.org/10.34808/s4e7-xw34], the frequency range from 19 MHz to 26 MHz was selected, in which the shape of the signal waveform from the output of the power supply unit differs most from the reference waveform. The immunity test procedure was carried out in the frequency range starting at 19 MHz and incrementing in 0.1% steps up to 26 MHz.
The attached files contain oscillograms showing the voltage waveforms at the output of the power supply unit that deviates the most from the reference waveform. Additionally, a table with the measurement results is included.  Figure 1. Configuration of the measuring system for the immunity test
DOI: 10.34808/ra5e-xx43
title: SEM (Scanning Electron Microscopy) images of gold (Au) deposited onto titanium dioxide (TiO2)

description: These data contains SEM (Scanning Electron Microscopy) images of Au (gold) deposited onto TiO2 (titanium dioxide). Samples were obtained by two different methods: magnetron sputtering from Au disc, and thermal reduction of HAuCl4 (Chloroauric acid). The detailed equipment and measurement data was described in "readme FTIR in situ.txt" file.
DOI: 10.34808/wf87-t484
title: Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,9 V at 420 mA. Sample 103, run #2.

description: Dataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,9 V and discharged to 10 mV by constant current 420 mA.  Sample 103, experiment run #2. Voltage was increased to accelerate the ageing process.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface emission. For sample charging and discharging the ATLAS 1361 MPG&T was used.The sample is in a form of triplex envelope (6 cm x 7 cm) with active structure (2,5 cm x 4 cm) inside and electrodes contacts at one of envelope edge.The ASCII text data file consists of images acquired within a fixed period of measurement, T = 180 sec. The recorded image is a matrix containing 388 x 288 temperature data. Each image is preceded with header with image number, date and time of acquisition.
DOI: 10.34808/134v-v963
title: Scanning electron microscopy (SEM) images of the boron-doped carbon nanowalls surfaces

description: The dataset contains the scanning electron micrographs (SEM), revealing the surface morphology of boron-doped carbon nanowalls electrodes on silicon substrates. The surface is characterized by nano-walled structures. The obtained electrodes were doped with boron at the level of [B]/[C] = 5000ppm  in the gas atmosphere during the synthesis.
The selected micrographs were utilized when preparing the manuscript published in Acta Materialia: DOI 10.1016/j.actamat.2021.116989
DOI: 10.34808/7fd8-7k02
title: State aid for shipyards

description: The dataset encompassed a choice of the most important legal acts, a list of selected Polish bibliography and a list of important individual decisions issued on the topic of state aid for shipyards in Poland and in selected UE countries. The data constitute a description of the basic state aid instruments used in practise in the period 1999-2018, but especially after Polands accession in 2004. Thanks to that the reader gets the possibility do acquire basic knowledge on the above mentioned topic, with emphasis on the cases of Gdynia and Gdansk shipyards.
DOI: 10.34808/d96s-cj29
title: Description of symmetrical prolate ellipsoid magnetic signature parameters-Be = 50 mT, I = 70 deg, z = 100 m, q = 100 deg, j = 135 deg, a =4 m, e = 4, mr = 100

description: The Earth magnetic field (Fig.1): BE – total magnetic flux density, BEx – x component of the Earth magnetic flux density, BEy = 0  y component of the Earth magnetic flux density, BEz – z component of the Earth magnetic flux density, I – inclination of the Earth magnetic field.
The symmetrical prolate ellipsoid (Fig.2): L – length of ellipsoid, a – radius of ellipsoid, e – unidimensional coefficient, q - vertical angle, j - horizontal angle.
For each scenarios there are following files:
Per_50%Mx_Bx_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]             Bx – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_By_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]            By –  component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_Bz_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]             Bz – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_x_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]               x coordinate [m]
Per_50%Mx _y_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]              y coordinate [m]
were:
BE [mT], I [deg], z [m], q [deg], j [deg], mr – relative magnetic permeability
Per_50%Mx – permanent magnetization of an ellipsoid in x direction is equal 50% induced magnetization for q = 90 deg and j = 0 deg
For the following parameters: Be = 50 mT, I = 70 deg, z = 100 m, q = 100 deg, j = 135 deg, a =4 m, e = 4, mr = 100
The names files are:
Per_50%Mx_Bx_50_70_100_100_135_4_4_100      Bx – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_By_50_70_100_100_135_4_4_100       By – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_Bz_50_70_100_100_135_4_4_100       Bz – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_x_50_70_100_100_135_4_4_100         x coordinate [m]
Per_50%Mx_y_50_70_100_100_135_4_4_100         y coordinate [m]
For the following parameters: Be = 50 mT, I = 70 deg, z = 10 m, q = 90 deg, j = -90 deg, a =4 m, e = 5, mr = 100
The names files are:
Per_50%Mx_Bx_50_70_10_90_m90_4_5_100  Bx – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_By_50_70_10_90_m90_4_5_100  By – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_Bz_50_70_10_90_m90_4_5_100  Bz – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_x_50_70_10_90_m90_4_5_100     x coordinate [m]
Per_50%Mx_y_50_70_10_90_m90_4_5_100     y coordinate [m]
DOI: 10.34808/c9mw-ez62
title: Results of pharmaceuticals mixtures toxicity on inhibition of bioluminescence of Vibrio fischeri (Microtox)

description: The research was concerned with verifying the impact of mixtures of nine pharmaceuticals against a selected organism, i.e., the bacterium Aliivibrio fischeri. A. fisheri is used as a model organism in the monitoring of acute toxicity in environmental and reference samples in Microtox® systems.  Tested pharmaceuticals, namely: diclofenac (sodium salt), oxytetracycline, hydrochloride, fluoxetine hydrochloride, chloramphenicol, ketoprofen, progesterone, estrone, androstenedione and gemfibrozil, are widely used in various therapeutic treatments. 
The major idea of the modeling of the results (effects) from the simultaneous action of two drugs in Microtox® test for ecotoxicity is as follows.
Data show raw results of biolumencscence levels before incubation and after incubation with bacterial suspension. 
Studies were conducted between 2015.
These results are part of the manuscript published in Science of the Total Environment (https://doi.org/10.1016/j.scitotenv.2016.07.186)
DOI: 10.34808/jmdx-k428
title: The results of the assessment of the degree of deacetylation, antimicrobial activity and cytotoxicity of chitosan materials - the dataset

description: The data present the measurement results of the degree of deacetylation of five commercial chitosans, which were processed using two methods and evaluated for their antimicrobial activity and cytotoxicity against the model mouse fibroblast cell line L929. A comparative assessment was carried out on chitosan-based materials obtained using the conventional method of dissolution in a (lactic) acid solution and an innovative method involving the saturation of an aqueous suspension of the microcrystalline form of this polymer with carbon dioxide. Additionally, the influence of nano-ZnO addition and its concentration in xerogels on the relationship between antimicrobial activity and cytotoxicity was evaluated.
DOI: 10.34808/p9mc-vw20
title: Functional and spatial structure analysis – Lower Sopot (Dolny Sopot) district case study, study proposal no 6, February 2021

description: The data presents results of work within the studies of the conditions of the district in the context of the city, Lower Sopot (Dolny Sopot) district, study proposal no 6, from February 2021. The goal of the research process was to present the functional and spatial structure analysis of the area located in Lower Sopot (Dolny Sopot) district in the context of the city of Sopot. The aim of the study was to understand the current condition and the potential for redevelopment of the chosen area taking in consideration development of the entire city. The dataset presents functional and spatial structure analysis in the form of sensation path, survey among residents, mental maps, land use analysis, series of diagrams and schemes. The dataset presents the study work of students of the Faculty of Architecture, Gdańsk University of Technology (FA Gdańsk Tech) - 6th semester of the Bachelor Studies (undergraduate studies) at the FA Gdańsk Tech coordinated by Weronika Mazurkiewicz PhD. The preparatory process and studies were conducted during February 2021. The study results in the dataset are the effect of the course of urban planning IV at the Faculty of Architecture, Gdańsk University of Technology 2020/2021 academic year. The study results in dataset form the basis for the design proposal developed during the course as well as further research and development studies of the district.
DOI: 10.34808/xa7f-w978
title: Description of symmetrical prolate ellipsoid magnetic signature parameters-Be = 50 mT, I = 70 deg, z = 50 m, q = 90 deg, j = 135 deg, a =4 m, e = 1, mr = 100

description: The Earth magnetic field (Fig.1): BE – total magnetic flux density, BEx – x component of the Earth magnetic flux density, BEy = 0  y component of the Earth magnetic flux density, BEz – z component of the Earth magnetic flux density, I – inclination of the Earth magnetic field.
The symmetrical prolate ellipsoid (Fig.2): L – length of ellipsoid, a – radius of ellipsoid, e – unidimensional coefficient, q - vertical angle, j - horizontal angle.
For each scenarios there are following files:
Per_50%Mx_Bx_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]             Bx – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_By_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]            By –  component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_Bz_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]             Bz – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_x_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]               x coordinate [m]
Per_50%Mx _y_[BE]_[I]_[z]_[q]_[j]_[a]_[e]_[mr]              y coordinate [m]
were:
BE [mT], I [deg], z [m], q [deg], j [deg], mr – relative magnetic permeability
Per_50%Mx – permanent magnetization of an ellipsoid in x direction is equal 50% induced magnetization for q = 90 deg and j = 0 deg
For the following parameters: Be = 50 mT, I = 70 deg, z = 50 m, q = 90 deg, j = 135 deg, a =4 m, e = 1, mr = 100
The names files are:
Per_50%Mx_Bx_50_70_50_90_135_4_1_100      Bx – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_By_50_70_50_90_135_4_1_100       By – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_Bz_50_70_50_90_135_4_1_100       Bz – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_x_50_70_50_90_135_4_1_100          x coordinate [m]
Per_50%Mx_y_50_70_50_90_135_4_1_100         y coordinate [m]
For the following parameters: Be = 50 mT, I = 70 deg, z = 10 m, q = 90 deg, j = -90 deg, a =4 m, e = 5, mr = 100
The names files are:
Per_50%Mx_Bx_50_70_10_90_m90_4_5_100  Bx – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_By_50_70_10_90_m90_4_5_100  By – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_Bz_50_70_10_90_m90_4_5_100  Bz – component of the ellipsoid magnetic flux density [nT]
Per_50%Mx_x_50_70_10_90_m90_4_5_100     x coordinate [m]
Per_50%Mx_y_50_70_10_90_m90_4_5_100     y coordinate [m]