cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.34808/srd1-3q96
title: state aid for steel sector in the EU

description: The dataset encompassed a choice of most important UE and Polish legal acts, a list of selected Polish and foreign bibliography and a list of important individual decisions issued on the topic of state aid for steel industry in the UE.  The significance of this topic is undoubted, as the steel industry is one of the most important UE production branches. The compilation refers to basic state aid instruments in the period 2004-2018.
DOI: 10.34808/ych3-gq53
title: Surface EMG-based signal acquisition for decoding hand movements

description: Biosignal processing plays a crucial role in modern hand prosthetics. The challenge is to restore functionality of a lost limb based on the signals acquired from the surface of the stump. The number of sensors (emg channels) used for signal acquisition influence the quality of a prosthetic hand. Modern algorithms (including neural networks) can significantly increase the acquired signal classification and therefore contribute to increased functionality of the prosthetic hand.
This data set contains EMG signals acquired for 12 different hand gestures. The EMG signals were recorded one at a time. The subject was asked to perform selected gesture within 1500ms. The data were acquired from 3 channels (1,2 column - ch1; 3,4 collumn - ch2; 5,6 collumn - ch3; ). The signals corresponding to each of 12 gestures are stored in separate files, the gesture repetitions are separated with "#". The data contains the emg envelope (1,3,5 column) and raw signals (2,4,6 column). and The EMG signals were recorded from 3 channels with one common electrode. The sampling frequency was 1000Hz. The data set can be used to design or test new algorithms for hand gestures recognition that can be further implemented in bio-prosthesis
DOI: 10.34808/dz6n-t349
title: The results of physico – chemical and microbiological testing of watercourses around the municipality of Gdańsk in 2009

description: The dataset contains the results of a bacteriological and physico-chemical study of watercourses waters within the administrative boundaries of Gdańsk city in 2009. The examined material consisted of water samples collected from 16 watercourses within the administrative boundaries of Gdańsk, Poland.
DOI: 10.34808/52na-va88
title: Bacteriological monitoring of coastal sea waters – Gulf of Gdańsk (Baltic Sea) in 2009

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 2009. The examined material consisted of water samples collected from 15 sampling points. The aim of this study was to determine the number of Escherichia coli and the number of intestinal enterococci in water samples.
DOI: 10.34808/jp32-ry67
title: Tax income to the Polish state budget in 2010-2019

description: Tax revenues are one of the main sources of state budget revenues (approx. 90%). Therefore thwy create the most important public fund, which is the basis for management in a given budgetary year. One of the main problems of fiscal policy of any state is appropriate coordination of budget revenues with budget expenditures, and hence maintaining budget balance.
These research data present tax revenues to the Polish state budget in 2010-2019, divided into the most important types of taxes.
DOI: 10.34808/cbt1-tn13
title: Quasirelativistic potential energy curves of NaRb dimer

description: This data presents potential energy curves of NaRb dimer, that include spin-orbit interaction, in Hund's case (c). Calculated using Born-Oppenheimer approximation with relativistic effects included via large spin-orbit effective core potentials. Custom basis sets, core polarization potentials and MRCI method are used to accurately describe electron correlation. Data set consists of 28 potential energy curves of ground and excited states of zero plus and zero minus (14 each) symmetry, 21 states of one symmetry, 9 states of two and 2 states of three symmetry.
DOI: 10.34808/ek20-5r75
title: The loop impedance measurement

description: The loop impedance measurement
             The data represents the results of the short circuit loop impedance measurement performed using the vector method.
            The vector method is a method for determining loop impedance based on the orthogonal voltage components. The advantages of this method are as follows: much more accurate measurement of loop impedance in comparison with classical methods as well as pure resistant measurement load. Thanks to that, a meter used in this method is characterized by a smaller size and lower weight than the one used in classical methods.
            The results of the analysis of the vector method have allowed to precise the rules of choice of the measurement method depending on network parameters, as well as to build the physical loop impedance meter adopting this method. The meter prototype consisted of: the LEM CV-500 transducer, the PCI 6024E data acquisition card and the load resistor 10 W of accuracy class 0.1 and specialized, an original application written in the LabVIEW environment.
            The obtained simulation and experimental results were convergent. The research resulted in the construction of a model of a loop impedance meter involving the aforementioned methods, which allows measuring the value of loop impedance with an error of less than 3%.
            These data were also used for designation the combined standard measurement uncertainty of loop impedance by the vector method.
DOI: 10.34808/gx4e-bv72
title: Images of apples for the use of the Viola-Jones method. Data set no. 2 - grey scale

description: The database contains pictures of apples made at different angles, from different sides and containing different varieties. In this way, two bases of apple images were created (each database contains 1,100 images). This set is data set no. 2 - grey scale: processed images in shades of gray. The photos were prepared for the best possible detection process in the Viola-Jones method. These photo bases with apples can be used to teach machines to recognize specific varieties and count apples.
DOI: 10.34808/75xd-bk46
title: Adiabatic potential energy curves of the triplet Pi and Delta ungerade states of the Lithium dimer

description: Adiabatic potential energy curves of the triplet Pi and Delta ungerade states have been calculated for the Lithium dimer. The results of the three excited states of the symmetries triplet Pi and Delta ungerade 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 four columns. The first column contains distances in Bohr radius units [a0] between Lithium atoms. The consecutive three 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].
DOI: 10.34808/k42b-8026
title: The voltage on bus bars of the main switchboard of the car carrier electrical power system during sea trials

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 conducted onboard the car carrier during sea trials.
The car carrier is equipped in a three-phase, three-wire electrical power system. The ship's electrical power plant consists of six free-standing generators of 1500 kVA each. The nominal voltage on bus bars of the main switchboard was 3300 V and 440 V with a frequency equal to 60 Hz. 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 440 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 440 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: car_carrier_trial_the value of the network voltage (440 or 220)_the number of the set_chx.  The block diagram of the digital measuring system
DOI: 10.34808/djbq-jx46
title: Simulation of a linear pneumatic actuator with 100 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: 10.34808/8edq-7078
title: Electronic transition dipole moment functions of the fifth singlet Sigma gerade plus state of the Lithium dimer

description: Electronic transition dipole moment functions (ETDMF) of the fifth singlet Sigma gerade plus (5sSg+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs 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. In all internuclear regions, presented ETDMFs reasonably agree with available previously calculated and measured results.
The dataset is arranged in six columns. &lt;Ψ_f | DMX or DMY or DMZ | Ψ_i&gt; is the x or y or z component of the electronic dipole moment between the initial state Ψ_i and the final state Ψ_f of the diatomic Lithium molecule. The first column contains distances in Bohr radius units [a0] between Lithium atoms. The consecutive five columns contain ETDMFs calculated for corresponding distances. All values are given in atomic units. All ETDMFs are provided as functions of the internuclear distance R, ranging from 2 to 90 [a0].
The symbols used for describing the initial (Ψ_i) and final (Ψ_f) states (for example 2tPg or 4sSu+) of the Li2 molecule are the following:
1 or 2 or ... - the electronic initial or final state number;
s or t - singlet or triplet state;
S or P or D - Sigma, Pi or Delta state;
g or u - gerade or ungerade state;
+ is connected only with Sigma states.
DOI: 10.34808/t5y8-7y17
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_3

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: 3.
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: 10.34808/03df-w284
title: de mininis state aid for entrepreneurs in EU law

description: This dataset will provide basic information on the legislation regarding the de minimis state aid under EU law, and some literature explaining the nature and effects of the de minimis state aid for entrepreneurs in some EU Member States in the budgetary period 2014-2020. As this kind of state aid admissible under the GBER, the individual decisions of the European Commission are rare. Nevertheless, amendments to the registration of de minimis aid have been noted even in the critical period of spring 2020. Also, de minimis aid for agriculture and fisheries has been mentioned.
DOI: 10.34808/ycz1-sm84
title: Dynamics of a linear pneumatic actuator with 63 mm piston diameter and 100 mm stroke subjected only to a mass load of 1040 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/se8g-r382
title: Database of the minimal sets of Lefschetz periods for Morse-Smale diffeomorphisms of a connected sum of g tori

description: Morse–Smale diffeomorphisms, structurally stable and having relatively simple dynamics, constitute an important subclass of diffeomorphisms that have been carefully studied during past decades. For a given Morse–Smale diffeomorphism one can consider “Minimal set of Lefschetz periods”, which provides the information about the set of periodic points of  a considered map, as it is the subset of its minimal periods.
The dataset consists of 20 files indexed by numbers g=1,...,20. Each file provides all minimal sets of Lefschetz periods for orientation preserving Morse–Smale diffeomorphisms of M(g), an orientable compact surface without boundary of genus g (i.e. a connected sum of g tori).
 The data set takes into account not only the algebraical restrictions  for the sets of minimal Lefschetz periods that come from zeta functions  but also topological ones that can be deduced from the structure of the cohomology ring.
The results are based on the algorithm available in the paper: G. Graff, M. Lebiedź, A. Myszkowski, Periodic expansion in determining minimal sets of Lefschetz periods for Morse–Smale diffeomorphisms, J. Fixed Point Theory Appl. (2019) 21:47, https://doi.org/10.1007/s11784-019-0680-4.
DOI: 10.34808/46s7-f730
title: Value of tax preferences by areas of support and types of taxes in 2010

description: These data contain information prepared by the Ministry of Finance on the value of tax preferences by areas of support and types of taxes in 2010.
Tax preferences are a tool of tax policy. Their role is to stimulate desired activities of taxpayers, providing support to certain sectors and types of activity and monitoring the progressivity of tax burdens.
For the purposes of the following dataset, the tax incentives were separated into nine areas of support, i.e .:1) economy,2) agriculture,3) employment,4) education, science, culture, sport,5) public benefit organizations, churches, social and civic organizations,6) health,7) family and social assistance,8) transport and environmental protection and9) other - including preferences that cannot be assigned to other groups.
DOI: 10.34808/w542-1n06
title: Electronic transition dipole moment functions of the third singlet Sigma ungerade plus and third triplet Sigma gerade plus states of the Lithium dimer

description: Electronic transition dipole moment functions (ETDMF) of the third singlet Sigma ungerade plus (3sSu+) and third triplet Sigma gerade plus (3tSg+) states have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the four ETDMFs 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. In all internuclear regions, presented ETDMFs reasonably agree with available previously calculated and measured results.
The dataset is arranged in five columns. &lt;Ψ_f | DMX or DMY or DMZ | Ψ_i&gt; is the x or y or z component of the electronic dipole moment between the initial state Ψ_i and the final state Ψ_f of the diatomic Lithium molecule. The first column contains distances in Bohr radius units [a0] between Lithium atoms. The consecutive four columns contain ETDMFs calculated for corresponding distances. All values are given in atomic units. All ETDMFs are provided as functions of the internuclear distance R, ranging from 2 to 90 [a0].
The symbols used for describing the initial (Ψ_i) and final (Ψ_f) states (for example 2tPg or 4sSu+) of the Li2 molecule are the following:
1 or 2 or ... - the electronic initial or final state number;
s or t - singlet or triplet state;
S or P or D - Sigma, Pi or Delta state;
g or u - gerade or ungerade state;
+ is connected only with Sigma states.
DOI: 10.34808/gex8-1s41
title: Ball on disk test AW4_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 WC powder injected (AW4_1).
DOI: 10.34808/xpas-s271
title: Collective action against same-sex marriages_online research in Poland

description: The study was conducted in the context of people opposing the equality of sexual minorities. At the beginning of the survey, each respondent was asked to mark their support for the equality of rights of heterosexual and homosexual persons, on a scale from -3 (definitely not) to 3 (definitely yes). The subsequent questions of the survey were formulated in such a way as to concern groups opposing the equality of sexual minorities. A realistic and symbolic threat scale was used to measure the link of the threat to the tendency to engage in collective actions. We measured also: group efficacy, multiple group membership, group identification, perceived injustice, and willingness to engage in collective action against same-sex marriage law. The study was conducted using the Polish National Research Portal Ariadna. 180 people (50.6% women and 49.4% men) participated in the study. Participants ranged in age from 18 to 76 (M = 40.49; SD = 13.88).
DOI: 10.34808/5xw4-fj43
title: Epitaph of Guldenstern family 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 family Guldenstern, very noble family that came to Poland with the king of Sweden and Poland – Sigismund III Vasa, and to representatives of Swedish emigration. 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/rnsv-rc29
title: Simulation of a linear pneumatic actuator with 63 mm piston diameter, 20 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/canj-3539
title: Epitaph of George Posse in St. Mary's Church in Gdańsk

description: Data set concerns epigraphy. It refers to the epitaph placed in St. Mary’s Church in Gdańsk, that is dedicated to George Posse, a Swedish nobleman who came to Poland with the king of Sweden and Poland – Sigismund III Vasa, and died in Gdańsk on 8th of March 1616. The epitaph was erected by his son Gabriel. Data set contains one general photo of the epitaph, transcription of its text in Latin, its translation in Polish, and the short biography of the deceased, also in Polish.
DOI: 10.34808/6rt7-9g30
title: Simulation of a linear pneumatic actuator with 63 mm piston diameter, 20 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: 10.6084/m9.figshare.14141018
title: Extracted Data of Indonesia 2017 Demographic Health Survey on Maternal-Neonatal Determinants

description: This datasets was extracted from IDHS, obtained by survey done in the year of 2017.<br>