cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34808/0d90-0v75
title: Determination of changes in viscosity of hydrogel depending on shear rate (1.7 to 34 s-1).

description: The rheological characteristics of hydrogel were made on the basis of a viscosity measurement using a Brookfield viscometer, using LV SC4 - 27 spindle and shear rates from 1.7 to 34 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/pb7h-aa61
title: Determination of flow properties of a serial connection of two pneumatic elements with (C=2.8, b=0.25) and (C=2.0, b=0.11) from changes in air pressure in a tank being emptied

description: The aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for two directional control valves arranged in-line. Four test configurations were used: (1) being emptied tank -&gt; the first DCV -&gt; ambient atmosphere, (2) being emptied tank -&gt; the second DCV -&gt; ambient atmosphere, (3) being emptied tank -&gt; the first DCV -&gt; the second DCV -&gt; ambient atmosphere, (4) being emptied tank -&gt; the second DCV -&gt; the first DCV -&gt; ambient atmosphere. So, four data files are included in the dataset. Each data file has a header where parameters of experiment are given. Additionally, for the valves analised , catalogue flow properties are given by means of sonic conductance and critical pressure ratio. The given data allow to verify calculation procedures for determination of flow properties of pneumatic components arranged in-line.
DOI: 10.34808/mrhz-nh17
title: Dynamics of S-unimodal maps used in population modeling.

description: S-unimodal maps are maps of the interval with negative Schwarzian derivative and having only one turning point (such that the map is increasing to the left of the turning point and decreasing to the right of it). Theory of S-unimodal maps is now a well-developed branch of discrete dynamical systems, including famous Singer theorem which implies existence of at most one attracting periodic orbit, necessarily attracting the turning point. Despite these special properties, S-unimodal maps have various applications. Simultaneously strong tools from dynamical system theory allow to describe effectively their dynamics.
 
The dataset is concerned with Hassel and Ricker maps that appear as models of population dynamics. These maps in particular were studied in the paper Periodicity versus chaos in one-dimensional dynamics (SIAM Rev. 43, no. 1, 3–30, 2001) by H. Thunberg (see also references therein). For the formulas and further properties of these functions we refer to this paper or to the master thesis “S-unimodal interval maps: theory and applications to population dynamics” of Zuzanna Kontna (Gdansk University of Technology, 2020).
 
The folder includes txt-file codes.txt which contains R-program codes for creating:
• graphs of Hassel and Ricker maps with arbitrary parameters,
• bifurcation diagrams of Ricker and Hassel maps,
• bifurcation diagram of logistic mapping,
• histograms of points of the orbit of Ricker map.
 
The programs were created for the purpose of the above mentioned master thesis. We also include the following graphical files obtained using this program:
• Ricker_lambda1_6beta_0_7.jpg showing a graph of the Ricker mapping with parameters λ = 1, 6 and β = 0, 7.
• Hassel_lambda4beta2.jpg showing a graph of the Hassell mapping for parameters λ = 4 and β = 2.
• BifurcationRicker_beta2.jpeg presenting bifurcation diagram for Ricker map with β = 2 and λ as a bifurcation parameter.
• BifurcationHassel_beta20.jpeg presenting bifurcation diagram for Hassel map with β = 20 and λ as a bifurcation parameter.
• BifurcationLogistic.jpeg presenting bifurcation diagram for the logistic map
• HistogramRicker1.jpeg showing orbit distribution for the Ricker map with parameters λ = 16,999 and β = 2 and the starting point x0 = 0,3.
• HistogramRicker2.jpeg showing orbit distribution for the Ricker map with parameters λ = 16,999 and β = 2 and the starting point x0 = 2.
DOI: 10.48370/ofd/dqe9rw
title: Myodes glareolus - 7264, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1954-12-06, in: Białowieża National Park, Poland. Material type:
DOI: 10.34808/qnhd-ke05
title: Welds sample 2

description: In this series of experimental data, videos of the stretching of welded parts will be presented. To watch movies in .cine format, you need to have Phantom's dedicated free software viewer installed.
DOI: 10.34808/zzhq-yt71
title: MODALITY corpus - SPEAKER 03 - SEQUENCE S1

description: The MODALITY corpus is one of the multimodal database of word recordings in English. It consists of over 30 hours of multimodal recordings. The database contains high-resolution, high-framerate stereoscopic video streams and audio signals obtained from a microphone array and a laptop microphone. The corpus can be employed to develop an AVSR system, as every utterance was labelled. Recordings in noisy conditions can be used to test the robustness of speech recognition systems.
The language material was based on a remote control scenario and it includes 231 words -numbers, names of months and days, a set of verbs and nouns related to a computer device control. They were read by speakers as separated words and sequences resulting in a set of 12 recording sessions per speaker. Half of the sessions were recorded in quiet conditions, the other half contained three kinds of intrusive signals (traffic, babble and factory noise).
The corpus includes recordings of 42 speakers (33 male, 9 female). The participants include 20 students and staff of Multimedia Systems Department of the Gdańsk University of Technology, 5 students of the Institute of English and American Studies of the University of Gdańsk, and 17 native English speakers.
The dataset consist of recordings and visual features for SPEAKER 03:
sex: man
native speaker: no
age: 27
The test material: SEQUENCE S1
All recordings for all speakers are available at http://www.modality-corpus.org/  Sample still from the corpus(SPEAKER 03) Due to the size of the corpus (approx. 2.5 TB of data), every speaker’s recording was placed in a separate zip file of the size approx. 4-7 GB each.
The recordings were organized according to the speakers’ language skills. The group A (17 speakers) consists of native-speakers. Non-native speakers recordings (Polish nationals) were placed in the Group B (25 speakers).
The audio files use the Waveform Audio File Format (.wav), and contain a single PCM audio stream sampled at 44.1 kSa/s with 16-bit depth. The video files utilize the Matroska Multimedia Container Format (.mkv) in which a video stream in 1080p resolution, captured at 100 fps was placed after being compressed with h.265 codec (using High 4:4:4 profile). The ‘.lab’ files are text files containing the information on word positions in audio files, and follow the HTK label format. Each line of a ‘.lab’ file contains the actual label preceded by start and end times (in 100 ns units) e.g. : 1239620000 1244790000 FIVE which denotes the word “five”, occurring between the 123.962 s and 124.479 s of audio.Word-accurate SNR values calculated for every recording are also included in the ZIP file.
DOI: 10.34808/5bp9-7s77
title: MODALITY corpus - SPEAKER 33 - SEQUENCE S1

description: The MODALITY corpus is one of the multimodal database of word recordings in English. It consists of over 30 hours of multimodal recordings. The database contains high-resolution, high-framerate stereoscopic video streams and audio signals obtained from a microphone array and a laptop microphone. The corpus can be employed to develop an AVSR system, as every utterance was labelled. Recordings in noisy conditions can be used to test the robustness of speech recognition systems.
The language material was based on a remote control scenario and it includes 231 words -numbers, names of months and days, a set of verbs and nouns related to a computer device control. They were read by speakers as separated words and sequences resulting in a set of 12 recording sessions per speaker. Half of the sessions were recorded in quiet conditions, the other half contained three kinds of intrusive signals (traffic, babble and factory noise).
The corpus includes recordings of 42 speakers (33 male, 9 female). The participants include 20 students and staff of Multimedia Systems Department of the Gdańsk University of Technology, 5 students of the Institute of English and American Studies of the University of Gdańsk, and 17 native English speakers.
The dataset consist of recordings and visual features for SPEAKER 33:
sex: man
native speaker: yes
age: 48
The test material: SEQUENCE S1
All recordings for all speakers are available at http://www.modality-corpus.org/  Sample still from the corpus(SPEAKER 33) Due to the size of the corpus (approx. 2.5 TB of data), every speaker’s recording was placed in a separate zip file of the size approx. 4-7 GB each.
The recordings were organized according to the speakers’ language skills. The group A (17 speakers) consists of native-speakers. Non-native speakers recordings (Polish nationals) were placed in the Group B (25 speakers).
The audio files use the Waveform Audio File Format (.wav), and contain a single PCM audio stream sampled at 44.1 kSa/s with 16-bit depth. The video files utilize the Matroska Multimedia Container Format (.mkv) in which a video stream in 1080p resolution, captured at 100 fps was placed after being compressed with h.264 codec (using High 4:4:4 profile). The ‘.lab’ files are text files containing the information on word positions in audio files, and follow the HTK label format. Each line of a ‘.lab’ file contains the actual label preceded by start and end times (in 100 ns units) e.g. : 1239620000 1244790000 FIVE which denotes the word “five”, occurring between the 123.962 s and 124.479 s of audio.Word-accurate SNR values calculated for every recording are also included in the ZIP file.
DOI: 10.48370/ofd/rlmgvd
title: Myodes glareolus - 15688, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-11-09, in: Białowieża National Park, Poland. Material type:
DOI: 10.34808/4bvb-4f44
title: Analysis of spatial changes in the town of Puck with its surroundings in the years 1926, 1940, 1974, 1985, 2000, 2020 on the basis of topographic maps using the BDOT10K database

description: Spatial changes over time are extremely valuable due to the possibility of modeling forecasts. This dataset shows how Puck has evolved over a specific period of time. Thanks to this presentation of the data set, it is possible to easily recreate the appearance of the city in particular years. 
The spatial changes in Puck with its surroundings in the years 1926, 1940, 1974, 1985, 2000, 2020 using archival scans of topographic maps issued in 1926, 1940, 1982, 1988, 2000 and the BDOT10K data set. To analyse and present the results of work in descriptive and graphic form, the following programs were used: QGIS 3.14.16-Pi, ArcGIS Pro 2.6.0. The analysis of objects without source information was based on the principle of similarities and repeatability.  The obtained results should be treated with an error accuracy of approximately 1 mm in the base map scale.
DOI: 10.34808/3mfc-vs29
title: Database of the convergence analysis results of the nonstandard approximation of the generalized Burgers–Huxley equation for the solution bounded within [0,1].

description: The presented dataset is a result of the convergence analysis of the Mickens-type, nonlinear, finite-difference discretization of a generalized Burgers–Huxley partial differential equation.
The generalized Burgers–Huxley equation is a diffusive partial differential equation with nonlinear advection and diffusion. The boundary problem for this equation possesses travelling-wave solutions that are positive and bounded. Moreover, such solutions are spatially monotone at each instant of time, and temporally monotone at each spatial point. Unfortunately, only a few travelling-wave solutions of such model are known in exact form, therefore, the construction of a suitable numerical method is highly desirable.
The complete convergence analysis of the constructed nonstandard difference scheme is available in the paper: On the convergence of a finite-difference discretization a la Mickens of the generalized Burgers–Huxley equation (2014) Vol. 20, No. 10, 1444–1451, http://dx.doi.org/10.1080/10236198.2014.936319.
We provide nonstandard approximation of the travelling wave solution bounded within [0,1]. The dataset consists of text files (.txt) with simulation results which contain the maximum-norm errors. Results are obtained for couple of sets of model parameters:  α, γ, p and the space interval [-20,20]. Time interval is set to be [0,20]. Each file contains six results for different combination of time and space steps which satisfy the convergence conditions derived in the above paper.
α = 1, γ = 0.8, p = 2 – [0,1]solution1.txt
α = 1, γ = 0.7, p = 2 – [0,1]solution2.txt
α = 1, γ = 0.6, p = 2 – [0,1]solution3.txt
α = 1, γ = 0.8, p = 1 – [0,1]solution4.txt
α = 1, γ = 0.7, p = 1 – [0,1]solution5.txt
α = 1, γ = 0.6, p = 1 – [0,1]solution6.txt
α = 0.8, γ = 0.8, p = 1 – [0,1]solution7.txt
α = 0.6, γ = 0.8, p = 1 – [0,1]solution8.txt
α = 0.8, γ = 0.8, p = 2 – [0,1]solution9.txt
α = 0.6, γ = 0.8, p = 2 – [0,1]solution10.txt
DOI: 10.34808/bpxr-nj32
title: Accidents, victims and risk levels on regional roads in pomorskie voivodeship, 2017-2019 - Side-impact accidents

description: Data contain risk classification on regional roads (voivodeship roads) in pomorskie voivodeship in 2017-2019, type of accidents: Side-impact. Measures used to assess the level of risk are (5 classes  low, low to medium, medium, medium to high, high): 
-Social risk: density of accident costs [mln zl/km/3 years] and density of accidents with seriously injured and fatalities [accidents/km/3 years].
-Individual risk: accident costs ratio [mln zl/mln vkt/3years], accident ratio with seriously injured and fatalities [accidents/mln vkt/3years]. 
Number of [numbers per 3 years]: accidents - 419, injuries - 577, seriously injured 75, fatalities - 20, accident costs 242,2 mln zl.
This study is a part of a research project: Risk classification for selected types of road accidents on regional roads (voivodeship roads) in pomorskie voivodeship in 2017-2019.
DOI: 10.34808/bd22-f796
title: Welds sample 1

description: In this series of experimental data, videos of the stretching of welded parts will be presented. To watch movies in .cine format, you need to have Phantom's dedicated free software viewer installed.
DOI: 10.34808/ypz9-mr46
title: Collective angst and collective action for progressive city policies: study4

description: We conducted this study before the second term of the presidential election in Poland in 2020. Conservative-nationalist President Andrzej Duda’s rival was Rafał Trzaskowski, the liberal Mayor of Warsaw supported by Civic Platform [pol. Platforma Obywatelska] party. 456 residents of Gdańsk participated in the study (313 women, 3 non-binary) with M age = 44.88 (SD = 14.07). Participants were recruited through the website where short information about the survey and invitation to take part in the study were placed. We measured: Collective angst, politicized collective identity, motives of the attack on President Adamowicz, place attachment, city identification, in-group continuity, collective action intention, the risk of politically motivated attack, collective angst regarding the potential victory of Andrzej Duda and Rafał Trzaskowski. Respondents used a 7-point response format (with 1 - strongly disagree, and 7 - strongly agree) for all measures.
DOI: 10.48370/ofd/ig8wla
title: Myodes glareolus - 137623, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1980-09-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.34808/cjtx-0v60
title: Accidents, victims and risk levels on regional roads in pomorskie voivodeship, 2017-2019 - Run off road  accidents

description: Data contain risk classification on regional roads (voivodeship roads) in pomorskie voivodeship in 2017-2019, type of accidents: Run off road. Measures used to assess the level of risk are (5 classes  low, low to medium, medium, medium to high, high): 
-Social risk: density of accident costs [mln zl/km/3 years] and density of accidents with seriously injured and fatalities [accidents/km/3 years].
-Individual risk: accident costs ratio [mln zl/mln vkt/3years], accident ratio with seriously injured and fatalities [accidents/mln vkt/3years]. 
Number of [numbers per 3 years]: accidents - 190, injuries - 236,seriously injured 59, fatalities - 32, accident costs 213,9 mln zl.
This study is a part of a research project: Risk classification for selected types of road accidents on regional roads (voivodeship roads) in pomorskie voivodeship in 2017-2019.
DOI: 10.34808/561f-gt07
title: Phytoplankton in the Kashubian Lakes – microscopic photo archive

description: Phytoplankton is a group of microscopic plant organisms passively floating in water. The organisms included in the phytoplankton of lakes include the following main taxonomic groups: cyanobacteria (Cyanobacteria), green algae (Chlorophyta), dinoflagellates (Dinophyta), diatoms (Bacillariophyceae), cryptophytes (Cryptophyta), chrysophytes (Chrysophyceae) and euglenins (Euglenophyta). This dataset contains images of various phytoplankton species found in Kashubian lakes observed in samples collected in September 2020. The images were taken using a camera and light microscope at 400x magnification. Based on the collected data and photographs, it can be concluded that depending on the lake sampled, different species of cyanobacteria and algae may be present in the phytoplankton on the same day.
DOI: 10.48370/ofd/kqohh9
title: Myodes glareolus - 665, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1953-04-16, in: Białowieża National Park, Poland. Material type:
DOI: 10.34808/en4d-6345
title: Determination of flow properties of a serial connection of two pneumatic elements with (C=2.8, b=0.25) and (C=2.1, b=0.14) from changes in air pressure in a tank being emptied

description: The aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for two directional control valves arranged in-line. Four test configurations were used: (1) being emptied tank -&gt; the first DCV -&gt; ambient atmosphere, (2) being emptied tank -&gt; the second DCV -&gt; ambient atmosphere, (3) being emptied tank -&gt; the first DCV -&gt; the second DCV -&gt; ambient atmosphere, (4) being emptied tank -&gt; the second DCV -&gt; the first DCV -&gt; ambient atmosphere. So, four data files are included in the dataset. Each data file has a header where parameters of experiment are given. Additionally, for the valves analised , catalogue flow properties are given by means of sonic conductance and critical pressure ratio. The given data allow to verify calculation procedures for determination of flow properties of pneumatic components arranged in-line.
DOI: 10.34808/b7sh-rt35
title: Split-beam echosounder data from Puck Bay autumn 2018

description: The acoustic data was collected in 2018, in the Bay of Puck, in the seasons: autumn. Data was collected during the day and night. Three split-beam echosounders with frequencies of 38 kHz, 120 kHz and 333 kHz were used to collect the data. The data was collected at a designated study area not far from the city of Hel, while the ship was sailing. To ensure data quality, echosounders were calibrated and passive noise was measured.
DOI: 10.48370/ofd/3rtuim
title: Myodes glareolus - 11463, Zoological collection of the Mammal Research Institute, PAS

description: Myodes glareolus (Bank vole) from Zoological collection of the Mammal Research Institute, PAS. Collected 1955-07-24, in: Białowieża National Park, Poland. Material type:
DOI: 10.34808/0z17-yx52
title: Accidents, victims and risk levels on regional roads in pomorskie voivodeship, 2019 - Poviat areas

description: Data contain the number of accidents, victims, accident costs divided on poviat areas (16 areas) on regional roads (voivodeship roads) in pomorskie voivodeship in 2019. Measures used to assess the level of social risk are (5 classes  low, low to medium, medium, medium to high, high): 
Number of seriously injured and fatalities [victims/year],
Demographic accidents ratio with seriously injured and fatalities [accidents/100 thous inhabitants]
Demographic accident costs ratio [mln zl/100 thous inhabitants]
Number of poviat areas - 16, sum of seriously injured and fatalities - 147,  min 0, max 24, average 9,2. Demographic accident ratio - min 0, max - 18,4, average 7,8. Demographic accident costs ratio - min 0, max - 68,5, average  - 30,9. 
This study is a part of a research project: Risk classification for selected types of road accidents on regional roads (voivodeship roads) in pomorskie voivodeship in 2017-2019.
DOI: 10.34808/25t0-7w86
title: The orthogonisation of objects simplified using the Chrobak’s method representing groups of buildings in Gdańsk district - scale 1:10000

description: The process of automatic generalization is one of the elements of spatial data preparation for the purpose of creating digital cartographic studies. The presented data include a part of the process of generalization of building groups obtained from the national geodesy and cartography resource from BDOT10k (10k topographic database) [1].
Data obtained from the simplification operator activity with Chrobak’s method (GDA_SimplificationChrobak.geojason) require the next stage of the generalization process - orthogonalization. This is a two-stage process:
- the segments with a similar azimuth are averaged (similarity within epsilon in the angular extent) and the direction of the azimuth of each segment is compared and rotated according to the azimuth of the longest segment,
- from the longest part of the object's boundary, subsequent sections are rotated in relation to their own center so that a right angle is created.
Literature
[1] Regulation of the Ministry of Administration and Digitization, W sprawie bazy danych obiektów topograficznych oraz bazy danych obiektów ogólnogeograficznych, a także standardowych opracowań kartograficznych [Regarding the database of topographic objects and the database of general geographic objects, as well as standard cartographic studies.]
DOI: 10.34808/9s0h-k459
title: Tropospheric parameters derived from the selected IGS stations in the global tropics for the years 2001-2018

description: This dataset contains daily GNSS-derived zenith tropospheric delay (ZTD), a posteriori corrected zenith wet delay (ZWD), and precipitable water vapour (PWV) time series. These troposphere-related data were estimated for the period between January 2001 and December 2018, for the 43 International GNSS Service (IGS) stations, located in the global tropics. Calculations were carried out using Bernese GNSS Software ver. 5.2 and the precise point positioning (PPP) approach. Tropospheric parameters were estimated using the Vienna Mapping Function 1, Saastamoinen model, and meteorological fields derived from the ERA5 model. This dataset states for the source of the long-term tropospheric time series, which can be used in meteorological and climate studies. It enables for the examination of the moisture pattern on numerous time scales, including seasonal and interannual variability.  Fig. Location of the IGS stations for which GNSS tropospheric parameters were estimated.