cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34808/5pe0-g310
title: The biotic and abiotic mercury at the coastal zone of Gulf of Gdańsk

description: Concentration of neurotoxin Hg (mercury) was determined monthly form 01.2012 to 05.2013 (total and suspended) in the surface microlayer and the surface water as well as in: phytoplankton, zooplankton, epilithon, epifithon, phytobenthos (macroalgae and angiosperms), zoobenthos, and in the sediment. The study was conducted in the coastal zone of the Puck Lagoon (Osłonino and Chałupy) and the Gulf of Gdańsk (Gdynia).  Mercury data were compiled with the abundance and biomass of individual species of: phytoplankton, phytobentos, zoobenthos;  abundance of individual species of zooplankton; water temperature; salinity; pH; suspended particulate matter concentration; concentration of  particulate organic carbon and nitrogen (in the surface microlayer and the surface water); δ13C and δ15N in the suspended matter; sediment parameters like: moisture, fine sediment fraction, LOI and redox condition. Results indicate influence of warming of cold season (from late autumn to early spring) on Hg concentration in biotic and abiotic components of marine coastal zone. Increase annual average mercury concentration in trophic web of gulf.
DOI: 10.34808/rfxw-j124
title: 3D point cloud as a representation of buildings: the Nanotechnology Center and the Auditorium Novum

description: The product presents the point cloud in the collection of a three-dimensional database in spatial order as the representations of the Nanotechnology Center and the Auditorium Novum buildings (located on the campus of the Gdańsk University of Technology) acquired in the laser scanning technology. According to its high accuracy and precision of data acquisition (about 1 mm at a distance of 10 m), this method finds its application in many areas of human life (i.e. medicine, architecture, agriculture or civil engineering). For data acquisition the Riegl VZ-400 instrument was used and the data alignment was performed using least-squares method. The next step was bound to transform the dataset to the PL-ETRF2000 system zone 6 horizontal coordinates and PL-KRON86-NH for heights. To sum up the available on the website file presents a set of points in the .txt format showing horizontal and height coordinates as well as the intensity of the light beam reflection from the measured object.
The purpose of the measurement was to update the spatial database. The update concerned an urban change in the form of the construction of the Nanotechnology Center building. The data can be used for the needs of inventory (e.g. in the form of spatial maps in two and three dimensions) and spatial analysis regarding e.g. wall deviations from the surface, determining the building volume.
DOI: 10.34808/ryg8-p650
title: Epitaph of John Schroeder in St. Mary's Church in Gdańsk

description: The data set concerns epigraphy. It refers to the epitaph placed in St. Mary’s Church in Gdańsk, that is dedicated to John Schröder, son of Simon. John, as he was a single, erected this epitaph for himself. Data set contains one general photo of the epitaph, transcription of its text in Latin, its translation in Polish, and the biography of the deceased, also in Polish.
DOI: 10.34808/sz9n-f087
title: 3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_2

description: Data gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
Rotational specimen (ring) dimensions 15.2 mm ID, 22 mm OD. Non-rotational specimen prismatic: 30x30x5 [mm], FDM 3D printed  of ABS thermoplasic material.  Thicknesses of 3D print layer: 0,09 [mm]. Prismatic specimen orientation in print: vertical. Prismatic specimen individual number in set: 2.
Test conditions: sliding friction (rotation of the ring specimen), constant load (400N) & velocity (0.1 m/s). Intermittent test regime - sequence of 5 minute consecutive test runs with specimen examination at intermissions.
Output data (time domain): friction coefficient, wear, temperature.
DOI: 10.34808/19vk-nw05
title: Dynamics of a linear pneumatic actuator with 63 mm piston diameter and 300 mm stroke subjected only to a mass load of 1680 g

description: The aim of the study was to determine the dynamics of a linear pneumatic cylinder subjected only to mass load. An actuator of one of the well known European manufacturers was tested.The experiment were to measure pressure changes in both chambers of the actuator and the position of the piston during stroke and retracting. The test was repeated 11 times. The obtained data, besides analysis of the dynamics of the actuator, allow verification of the correctness of its simulation models and even estimation of variable friction forces. The raw measurement data were saved in the default (text) GNU Octave format. The conversion functions for measuring sensors are also given.
DOI: 10.34808/1q8e-0m25
title: Determination of flow properties of a pneumatic hose from changes in air pressure in a tank being emptied or filled by a differently configured pneumatic line

description: The aim of the study was to determine the flow properties of various pneumatic hoses. The experiments were to measure the pressure changes in a being filled or emptied tank for a differently configured pneumatic line, including pneumatic hoses of different length and diameter. Three test configurations were used: (1) pressure source -&gt; pneumatic line -&gt; being filled tank, (2) being emptied tank -&gt; pneumatic line -&gt; ambient atmosphere, (3) being emptied tank -&gt; pneumatic line -&gt; being filled tank. The knowledge of pressure changes in the being filled (1), emptied (2) or in both (3) for known tank and hose sizes gives the opportunity to determine the flow properties of pneumatic hoses and their connections. Flow properties are understood as the values of coefficients of mass flow rate or volumetric flow rate models (C and b, Kv, Cv or others).
DOI: 10.34808/sb8m-ne34
title: Dynamics of a linear pneumatic actuator with 63 mm piston diameter and 150 mm stroke subjected only to a mass load of 750 g

description: The aim of the study was to determine the dynamics of a linear pneumatic cylinder subjected only to mass load. An actuator of one of the well known European manufacturers was tested.The experiment were to measure pressure changes in both chambers of the actuator and the position of the piston during stroke and retracting. The test was repeated 11 times. The obtained data, besides analysis of the dynamics of the actuator, allow verification of the correctness of its simulation models and even estimation of variable friction forces. The raw measurement data were saved in the default (text) GNU Octave format. The conversion functions for measuring sensors are also given.
DOI: 10.34808/ekm3-z174
title: Tensile curve of E grade steel for shipbuilding

description: In the shipbuilding industry, the risk of brittle fractures developing in constructions is limited by employing certified materials of specific impact strength, determined using the Charpy method (for a given design temperature) and by exercising control over the welding processes (technology qualification, supervision of production, tests of non-destructive character). However, for offshore type constructions, classic shipbuilding requirements may prove insufficient. It is for this reason that regulations employed in constructing offshore structures require conducting CTOD tests for steel and welded joints of thickness exceeding 40 mm in case of high tensile strength steel and greater than 50 mm in case of other steel types.  Since classification societies do not accept results of CTOD tests conducted on specimens of sub-sized dimensions, the problem of theoretical modelling of steel construction destruction process is of key importance, as laboratory tests for notched elements of considerable thickness (100 mm and above) are costly (large-size specimens, difficulties associated with notching) and problems stemming from high loads and wide range of recorded parameters are not uncommon. To prove the influence of sub-size specimens usage, Finite Elements Method (FEM) analysis, verified by full scale laboratory tests, were performed. One of the main problem was to evaluate proper material model, containing full plasticity and loss of material stiffens during final stage of its failure. Material model preparation was based on tensile properties of typical steel for marine structures. Dataset contains full tensile test record of steel for shipbuilding, used for material model evaluation.
DOI: 10.34808/9pak-pd14
title: Average CIT rate in European Union countries in 2008, 2010, 2012, 2014 and 2016 (in%)

description: The following data presents the average CIT rate in European Union countries between 2008-2016 .
When analyzing the level of the rates of this tax in the EU countries in 2008, 2010, 2012, 2014 and 2016, a smaller number of changes can be observed than in the case of other taxes e.g. value added tax (the average value of the rate for the entire EU did not change in the analyzed period). In the analyzed period, five countries decided to increase the rate of the levy, while nine reduced the amount of the tax levied. The other countries left the rate unchanged. Lowering the amount of this tax is a general trend that began in the European Union
DOI: 10.34808/r1td-b212
title: The voltage on bus bars of the main switchboard of the ferry electrical power system during a sea voyage

description: The dataset is part of the research results on the quality of supply voltage on bus bars of the main switchboard of the ship's electrical power system in different states of ship exploitation. The attached dataset contains the measurement results carried out onboard the ferry during a sea voyage.
The ferry is equipped in a three-phase, three-wire electrical power system. The source of electricity is three-phase synchronous generators driven by auxiliary diesel engines. Additionally, shaft generators driven by the propeller shaft of the main engine are used. The ship's electrical power plant consists of three free-standing generators of 1400 kVA each, and two shaft generators 1375 kVA each. The nominal voltage on bus bars of the main switchboard was 380 V with a frequency equal to 50 Hz. The free-standing generators have been the main energy source. The parallel operation of each shaft generator with the free-standing generators is possible, especially during a sea voyage with a calm wave surface. Additionally, each of the bow thrusters has been supplied of single shaft generators, the most frequently, in configuration separated from the main electrical power system. The voltage of 220V has been obtained using a transformer.
The voltage waveforms on bus bars of the main switchboard were recorder with the digital measuring system, which allows the simultaneous measurement of three phase-to-phase or two-phase voltages. The initial conditioning of the input signals is carried out by optoisolation amplifiers and a low-pass filter module (antialiasing). The formation of the output digital signal from the analog signal takes place in the a/d converter with a resolution of 16 bits and a sampling rate of up to 20 kS/s. Using three channels at the same time allows the maximum sampling rate of 6.6 kS/s. The block diagram of the digital measuring system is shown in Figure.
The files contain voltage waveforms of the output of a/d converters in [V], in three phases for 400 V and 220V networks. The attenuation and offset of the measuring path for the 220 V network are 77.6398 [V/V] and -0.017 V, respectively. For the 380 V network, the attenuation and offset of the measuring path are equal to 134.0123 [V / V] and -0.0175 V, respectively. The sampling frequency is inserted in the first row of the attached files.
The files are described as follows: ferry_voyage_the value of the mains voltage (380 or 220)_number of the set. The file named ferry_voyage_380_2.TXT contains measurement data that was recorded during the operation of the SG1 shaft generator after turning off the free-standing generator G1. Then, after 20 minutes, the SG1 generator is switched off and the free-standing generator G2 is on.  The block diagram of the digital measuring system
DOI: 10.34808/szj0-6m26
title: Simulation of a linear pneumatic actuator with 63 mm piston diameter, 25 mm piston rod diameter and 50 mm stroke

description: The aim of the simulation was to determine the dynamics of linear pneumatic actuators with different sizes and flow properties. The simulation used the actuator dynamics model as described in [1] and the St Venant - Wantzel's mass flow rate model. The simulation experiment was to calculate the pressure changes in both chambers of the actuator as well as the position and velocity of the piston during the stroke. The simulation results were saved in the default GNU Octave (text) format. The original purpose of the experiments was to obtain data to create a neural model of a pneumatic actuator.[1] Kiczkowiak T.: Algorithms and Models Applied in the Design of Pneumatic Driving Systems (in Polish), Koszalin 2005, Publishing House of Koszalin University of Technology
DOI: 10.34808/e3dd-d192
title: Employees’ self-expansion, work conditions, work engagement and productive behaviours: study 1&2

description: In the following studies conducted in Poland, we examined the importance of workplace self-expansion and found that it is a significant mediator between job resources (e.g. compensation and benefits, job tasks) and work engagement (Study 1) as well as task-oriented engagement (Study 2). At the same time, our findings prove that job demands (e.g. role ambiguity, overload) do not weaken employees' self-expansion if the impact of job resources is taken into account. Cross-sectional studies were conducted on diverse organizations operating in the Polish market. The data collection was carried out from January to February 2016 (Study 1) and from October to November 2016 (Study 2) via an online research platform. Access to the survey was possible only by weblink received in an invitation from one of the interviewers. Participation was voluntary and anonymous. A total of 339 employees participated in Study 1, and 368 in Study 2.
DOI: 10.5281/zenodo.4564284
title: Models and activations for "Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? - A computational investigation"

description: Trained models, extracted model activations, and related evaluation metadata analyzed and reported in Khorrami, K. & Räsänen. O.: Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? - A computational investigation. (https://psyarxiv.com/37zna)
description: {"references": ["Khorrami, K. & R\u00e4s\u00e4nen, O. (submitted): Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? - A computational investigation"]}
DOI: 10.5281/zenodo.4564283
title: Models and activations for "Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? - A computational investigation"

description: Trained models, extracted model activations, and related evaluation metadata analyzed and reported in Khorrami, K. & Räsänen. O.: Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? - A computational investigation. (https://psyarxiv.com/37zna)
description: {"references": ["Khorrami, K. & R\u00e4s\u00e4nen, O. (submitted): Can phones, syllables, and words emerge as side-products of cross-situational audiovisual learning? - A computational investigation"]}
DOI: 10.34808/6qe9-gy11
title: Ball on disk test AT4_1-Al2O3-r15

description: Hard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 15 mm. Disk material: Al6061 TiN powder injected (AT4_1).
DOI: 10.34808/32b1-7k74
title: SEM micrographs and photos of salivary gland stones

description: This 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.
The exemplary micrographs were made using a Scanning Electron Microscope (SEM), operating with a variable pressure chamber at a pressure of 90 Pa. A back-scatter electron BSE detector was used for the analysis. The accelerating voltage was 20 kV. There were no pre-treatment procedures applied besides cutting the investigated salivary stones to reveal their core.
DOI: 10.34808/s002-br57
title: Simulation of a linear pneumatic actuator with 63 mm piston diameter, 20 mm piston rod diameter and 200 mm stroke

description: The aim of the simulation was to determine the dynamics of linear pneumatic actuators with different sizes and flow properties. The simulation used the actuator dynamics model as described in [1] and the St Venant - Wantzel's mass flow rate model. The simulation experiment was to calculate the pressure changes in both chambers of the actuator as well as the position and velocity of the piston during the stroke. The simulation results were saved in the default GNU Octave (text) format. The original purpose of the experiments was to obtain data to create a neural model of a pneumatic actuator.[1] Kiczkowiak T.: Algorithms and Models Applied in the Design of Pneumatic Driving Systems (in Polish), Koszalin 2005, Publishing House of Koszalin University of Technology
DOI: 10.34808/hzrt-aq62
title: Functional specialisation and economic upgrading in GVCs

description: The dataset collected for selected Central Eastern European (CEE) countries (CZE, EST, HUN, LVA, LTU, POL, SVK, SVN) contains country-level and sector-level observations for the project implementation linked to the concept of functional specialization of economies. The aim of the project is to identify patterns of functional specialisation in global value chains (GVC) and determinants of upgrading it for selected CEE countries. Functional specialisation index (rca_fsi) which provides a basis for the construction of dependent binary variable (fsi) in analysed models is obtained with the aid of an online appendix with replication files and the Matlab codes provided by Timmer et al. (2019).The dataset contains Stata format files.The results confirm that the higher labour productivity, labour compensation, skills and backward linkages are, the greater the probability is of climbing up the smile curve in management tasks and R&D activities. Upgrading functional specialisation in marketing tasks is supported by strong GVC linkages and may occur when wages are rising.Marcel P Timmer, Sébastien Miroudot, Gaaitzen J de Vries, Functional specialisation in trade [dataset/supplementary data], Journal of Economic Geography, Volume 19, Issue 1, January 2019, Pages 1–30, https://doi.org/10.1093/jeg/lby056
DOI: 10.34808/x3f9-fh19
title: Simultaneous measurements of ECG, body Impedance and temperature

description: The data are complementary part of the experiment designed to demonstrate how to use the network protocols to transmit medical data. The dataset contains biomedical signals of ECG, Impedanc and temperature acquired simultaneously. The data allow students to become familiar with data acquisition methods (simulate data transmission by medical device over UDP protocol). This data helps students to get familiar with the methods of decoding the data frame and reading the data saved in different formats. Data frame of the dataset is as follows:&lt;Impedance, ECG, thermistor&gt;where:"&lt;" means the beginning of a data frame,"&gt;" end of data frame" , " is a separator"ECG" signal value"Impedance" value of measured impedance"Thermistor" signal from the thermistorIn binary form, a single "portion" of data is 7 bytes (56 bits). The first 24 bits are impedance samples, another 24 bits are ECG, the last 8 bits are thermistor. The data was sampled at f = 250Hz.
DOI: 10.34808/gjqh-m415
title: Simulation of a linear pneumatic actuator with 32 mm piston diameter, 14 mm piston rod diameter and 200 mm stroke

description: The aim of the simulation was to determine the dynamics of linear pneumatic actuators with different sizes and flow properties. The simulation used the actuator dynamics model as described in [1] and the St Venant - Wantzel's mass flow rate model. The simulation experiment was to calculate the pressure changes in both chambers of the actuator as well as the position and velocity of the piston during the stroke. The simulation results were saved in the default GNU Octave (text) format. The original purpose of the experiments was to obtain data to create a neural model of a pneumatic actuator.[1] Kiczkowiak T.: Algorithms and Models Applied in the Design of Pneumatic Driving Systems (in Polish), Koszalin 2005, Publishing House of Koszalin University of Technology
DOI: 10.34808/ccpn-4m12
title: Simulation of a linear pneumatic actuator with 100 mm piston diameter, 25 mm piston rod diameter and 500 mm stroke

description: The aim of the simulation was to determine the dynamics of linear pneumatic actuators with different sizes and flow properties. The simulation used the actuator dynamics model as described in [1] and the St Venant - Wantzel's mass flow rate model. The simulation experiment was to calculate the pressure changes in both chambers of the actuator as well as the position and velocity of the piston during the stroke. The simulation results were saved in the default GNU Octave (text) format. The original purpose of the experiments was to obtain data to create a neural model of a pneumatic actuator.[1] Kiczkowiak T.: Algorithms and Models Applied in the Design of Pneumatic Driving Systems (in Polish), Koszalin 2005, Publishing House of Koszalin University of Technology
DOI: 10.34808/mjms-th03
title: Adiabatic potential energy curves of the singlet Sigma gerade plus states of the Lithium dimer

description: Adiabatic potential energy curves of the singlet Sigma gerade plus states have been calculated for the Lithium dimer. The results of the ground state and three excited states of the symmetry singlet Sigma gerade plus have been obtained by the nonrelativistic multireference configuration interaction (MRCI) method used with pseudopotentials describing the interaction of valence electrons with atomic cores. In this approach, only the valence electrons of the Li atom were treated explicitly. The core polarization potential has been also applied in calculations. All computations were performed by means of the MOLPRO program package. Presented potentials are ready to compare with the results of other theoretical results and potential energy curves derived from experiments.
The dataset is arranged in five columns. The first column contains distances in Bohr radius units [a0] between Lithium atoms. The consecutive four columns contain potential energies of interaction between Li atoms calculated for corresponding distances. Energies are shown in inverse centimeters units [cm-1]. All curves are tabulated according to internuclear distance from 3.2 [a0] to 88 [a0].