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Search results for: BARS TORSION ELASTICITY STRAIN GRADIENT THEORY COUPLE STRESS THEORY FINITE ELEMENT METHOD
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Validation of lumbar spine finite element model
Open Research DataThe functional biomechanics of the lumbar spine have been better understood by finite element method (FEM) simulations. However, there are still areas where the behavior of soft tissues can be better modeled or described in a different way. The purpose of this research is to develop and validate a lumbar spine section intended for biomechanical research....
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Finite element models used in diagnostics of transverse cracks in bridge approach pavement
Open Research DataTransverse cracks in the asphalt pavement were observed on bridge structures next to single-module expansion joints with a 5 meter approach slab set at the depth of 1 m. The finite element (FE) models of the approach pavement were created to investigate the reasons of premature cracking and crack initiation mechanism over the back edge of the abutment...
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Data obtained by numerical simulation for X-ray focusing using a finite difference method
Open Research DataThe propagation of X-ray waves through an optical system consisting of many X-ray refractive lenses is considered. For solving the problem for an electromagnetic wave, a finite-difference method is applied.
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Strain gauge results
Open Research DataThe aim of the research project is to determine the rotational stiffness of the connection between the purlin and the part of the truss top chord. The attached files are referred to strain gauge results placed on 16 specimens. For the specimens number from 1 to 8 the magnitudes should be multiplied by factor -2 and for the others by factor -1.
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Preparation to ball on disk test Initial contact stress evaluation
Open Research DataEvaluation of initial contact stress in tests on wear of Al6061 alloy in ball on disk tribological testing. Research on the reinforcing effect of aluminium alloy injection reinforcement with TiN and WC powders in laser remelted surface layer.
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Results of nanoindentation test to calculate residual stress in an eyelet of undercarriage drag strut after laser treatment
Open Research DataIn order to determine the residual stress in the laser-processed an eyelet of undercarriage drag strut, a nanoindentation test was performed before and after stress relief annealing. For this purpose, after the hardness test, the sample was subjected to stress relief annealing at 270 °C for 2 hours. Annealing was performed in a vacuum furnace. Hardness...
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Tagged images with LEGO bricks - Bars Ladders and Fences
Open Research DataThe set contains images of LEGO bricks (from Bars Ladders and Fences category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Oxygen partial pressure and temperature dependence of Gerischer element of symmetrical porous Sr0.86Ti0.65Fe0.35O3 electrode on CGO substrate
Open Research DataThis dataset contains values of Gericher element at different temperatures (800 °C, 750 °C, 700 °C, 650 °C and 600 °C)and oxygen partial pressures (20%, 10%, 5%, 1%, 0.1% and 0.01% pO2) of symmetrical Sr0.86Ti0.65Fe0.35O3 electrode sintered at 1000 °C. This values were obtained by fitting each measured impedance spectra by electrical equivalent circuit...
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Measurements of the fundamental harmonic frequency of voltages on main bars in a ship power station
Open Research DataThe presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2), developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing the fundamental...
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The voltage on bus bars of the main switchboard of the car carrier electrical power system during sea trials
Open Research DataThe 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.
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The voltage on bus bars of the main switchboard of the ferry electrical power system during maneuvering
Open Research DataThe 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 maneuvering.
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The voltage on bus bars of the main switchboard of the ferry electrical power system during a layover at the port
Open Research DataThe 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 layover at the port.
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The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during maneuvering
Open Research DataThe 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 at sea trials during maneuvering.
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The voltage on bus bars of the main switchboard of the ferry electrical power system during a sea voyage
Open Research DataThe 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.
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Measurements of the rms voltages on main bars in a ship power station with two generators operating in parallel
Open Research DataThe presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2), developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing the rms...
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The voltage on bus bars of the main switchboard of the ro-ro ship electrical power system during a layover at the port
Open Research DataThe 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 a ro-ro ship during a layover at the port.
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The voltage on bus bars of the main switchboard of the ro-ro ship electrical power system during maneuvering
Open Research DataThe 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 a ro-ro ship during maneuvering.
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The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during a sea voyage
Open Research DataThe 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 at sea trials. The data were recorded during a sea voyage, under normal...
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The voltage on bus bars of the main switchboard of the ro-ro ship electrical power system during a sea voyage
Open Research DataThe 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 a ro-ro ship during a sea voyage.
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Ultrasonic wave propagation and digital image correlation measurements of steel bars under 3-point bending
Open Research DataThe DataSet contains the results of the mechanical behaviour of a bar under a 3-point bending test. The bar was made of steel and had a cross-section of 5.96 × 5.96 mm2 and a length of 200 mm. The three-point bending test was performed using a Zwick/Roell Z10 universal testing machine (UTM), with a distance between supports of 12 cm. The parameters...
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The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during a bow thruster start-up
Open Research DataThe dataset is a 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. In ships' electrical power systems, disturbances occurring in voltage waveforms on bus bars of the main switchboard are connected mainly with the processes...
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List of initial and final geometries of hybrid organic-inborganic perovskites
Open Research DataList of initial and optimized geometries of hybrid organic-inorganic perovskites. Calculations were performed on DFT level of theory. Those results were reported in the Influence of Orientational Disorder on the Optical Absorption Properties of the Hybrid Metal‐Halide Perovskite CH3NH3PbI3 publication. Geometries, HOMO, LUMO, Band gap energies are concatenated...
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Minimal number of periodic points for smooth self-maps of simply-connected manifolds
Open Research DataThe problem of finding the minimal number of periodic points in a given class of self-maps of a space is one of the central questions in periodic point theory. We consider a closed smooth connected and simply-connected manifold of dimension at least 4 and its self-map f. The topological invariant D_r[f] is equal to the minimal number of r-periodic points...
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Dynamics of S-unimodal maps used in population modeling.
Open Research DataS-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...
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The OpenMolcas Web: A Community-Driven Approach to Advancing Computational Chemistry
Open Research DataThe developments of the open-source OpenMolcas chemistry software environment since spring 2020 are described, with a focus on novel functionalities accessible in the stable branch of the package or via interfaces with other packages. These developments span a wide range of topics in computational chemistry and are presented in thematic sections: electronic...
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3D intact knee model used in analysis of the medial meniscus biomechanics in the osteoarthritic knee joint - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model with original geometry and material parametetrs was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. The file was created in Abaqus 6.14-2, but can be read in a text editor.
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Chemical composition of La-Sr-Ce-Ni-Ti ceramics material measured by XPS method
Open Research DataLa-Sr-Ce-Ni-Ti (LSCNT) based ceramics sample was manufactured by standard solid state reaction.Prepared powder was pressed into pilled and sintered in a furnace in air atmosphere for 10h. Annealing temperature was 1200 Celsius degree. To calculate chemical composition and determine valence states of the elements, X-Ray photoemission spectroscopy (XPS)...
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3D model of osteoarthritic (OA) knee joint for analysis of the medial meniscus biomechanics - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the OA model thickness of articular cartilage and material parameters of the cartilage and menisci were reduced to simulate degenerative changes in the...
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3D knee model G with reduced thickness of articular cartilage - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the model G articular cartilage thickness was reduced in specific areas to simulate degenerative changes in the medial knee osteoarthritis. The file was...
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3D knee model M with decreased material parameters of the cartilage and menisci - input text file for computation
Open Research DataThe finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. In the model M the material parameters of cartilage and menisci were reduced to simulate degenerative changes in the medial knee osteoarthritis. The file...
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Validation of result of STM probe fabrication
Open Research DataThe scanning tunneling microscope [1] is a powerful research tool that allows, among other things, to obtain images with atomic resolution. A serious limitation of the described microscope is its limited applicability relating to conductive and semiconductor materials and the reproducibility of measurements depending on the preparation of the measuring...
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Numerical optimization of planar antenna structures using trust-region algorithm with adaptively adjusted finite differences
Open Research DataThe dataset contains initial designs and optimization results for three planar structures that include quasi-patch antenna for WLAN applications, compact spline-parameterized monopole dedicated for ultra-wideband applications, as well as rectifier for energy harvesting with enhanced bandwidth. The numerical results for the first two structures are also...
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Rheological and compressive strength (ultrasonic pulse method) properties of cement pastes containing iron oxide (Fe3O4) nanoparticles
Open Research DataRheological data of cement pastes containing different replacement levels of cement with iron oxide nanoparticles deterimined using MCR 301 (Anton Paar) stress-imposed rheometer, equipped with calibrated helicoidal geometry
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Database of the minimal sets of Lefschetz periods for Morse-Smale diffeomorphisms of a connected sum of g real projective planes.
Open Research DataMorse–Smale diffeomorphisms, structurally stable and having relatively simple dynamics, constitute an important subclass of diffeomorphisms that were 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 considered...
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The database of odd algebraic periods for quasi-unipotent self-maps of a space having the same homology group as the connected sum of g tori
Open Research DataThe dataset consists of 20 files indexed by numbers g=1,...,20. Each file provides sets of odd algebraic periods for all quasi-unipotent self-maps of a space having the same homology groups as the connected sum of g tori. Let us remark that each data set covers all algebraical restrictions that come from zeta functions for the sets of minimal Lefschetz...
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SPTNO ceramics measured by XPS method
Open Research DataSPTNO (Sr-Pr-Ti-Ni-O) ceramic were manufactured by solid state reaction, from oxides compounds. Synthesis conducted in air atmosphere at temperature in a range of 800-900 deg. Chemical composition of prepared materials were measured by XPS (X-Ray photoemision spectroscopy) method. UHV OmicronNanotechnology system with 128 channel Argus hemispherical...
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Database of the convergence analysis results of the nonstandard approximation of the generalized Burgers–Huxley equation for the solution bounded within [0,1].
Open Research DataThe 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.
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Database of the convergence analysis results of the nonstandard approximation of the generalized Burgers–Huxley equation for the solution bounded within [0, γ^(1/p)].
Open Research DataPresented 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...
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Database of the minimal sets of Lefschetz periods for Morse-Smale diffeomorphisms of a connected sum of g tori
Open Research DataMorse–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...
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Formation of gold nanostructures detected by XPS method
Open Research DataGold nanostructers were manufactured by thermal dewetting of thin film. Film with thickness of 2.8 nm was deposited by magnetron sputtering method. As a result of annealing at 550 deg, nanostructures appear. Bulk gold, as-deposited gold film and metallic nanostructures were measured by XPS method.
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Dewetting of silver films detected by XPS method
Open Research DataDewetting of silver thin films was detected by XPS method. Thin metallic films were deposited by magnetron sputtering method. Formation of nanostructures , as a result of thermal annealing, was confirmed by SEM microscope. For comparision three samples were measured. Bulg gold, as-deposited silver film with thickness of 3 nm and nanostructures.
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Green strength (buildability performance) of concretes containing magnetite aggregate (M0-M100) mixes
Open Research DataRaw data for determination of buildability (green strength) properties of concrete mixes determined by squeezing test using QuantumX MX840B with CATMAN-EASY software, determined after 15, 30, 45 and 60 minutes. Values present force and two displacement measurements by LVDT.Additionally, an Origin (*.opju) file with processed data presenting stress-strain...
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Potential energy curves and spectroscopic parameters of the diatomic silver anion and neutral silver dimer
Open Research DataThe process of a two-channel decay of the diatomic silver anion (Ag2-), namely the spontaneous electron ejection giving Ag2 + e- and the dissociation leading to Ag- + Ag is theoretically studied. The ground state potential energy curves (PECs) of the neutral silver dimer and anionic silver diatomic molecule are calculated using the single reference...
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FTIR spectra of Ce0.9M0.1O2 synthesised by reverse microemulsion method
Open Research DataThe dataset consist of the FTIR spectra of Ce0.9M0.1O2 synthesised by reverse microemulsion method, after calcination at 500 degrees.
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Structure of ammonium vanadate synthesis by LPE-IonEx method
Open Research DataThe DataSet contains the XRD patterns, FTIR spectra of NH4VO3 crystals with different morphology obtained by the LPE-IonEx method.
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The influence of the temperature treatment method on the quality of French fries.
Open Research DataThe video presents instructional work on the temperature treatment of French fries and the assessment of oil changes during frying. The results of the measurements show that placing the fries in cold oil, heating them to the frying temperature compared to the conventional method of frying, reduces the amount of primary oxidation products and free fatty...
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Morphology and structure of ammonium vanadates synthesis by hydrothermal method
Open Research DataThe DataSet contains the XRD patterns, FTIR spectra, and scanning electron microscopy (SEM) micrographs of ammonium vanadates synthesis by hydrothermal method from different NH4VO3 precursors. The results reveal that a mixture of (NH4)V4O10xH2O and(NH4)0.76V4O10 was obtained for both precursors, however the contribution of each phase was different for...
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The XPS spectra of Ce0.8Ni0.2O2 prepared using microemulsion method
Open Research DataThe dataset includes XPS spectra of Ce0.8Ni0.2O2-s sintered under air atmosphere. Samples were produced using aqueous soft chemistry methods (microemulsion). The XPS spectra were collected for all species.
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The XPS spectra of Ce0.8Cu0.2O2 prepared using microemulsion method
Open Research DataThe dataset includes XPS spectra of Ce0.8Cu0.2O2-s sintered under air atmosphere. Samples were produced using aqueous soft chemistry methods (microemulsion). The XPS spectra were collected for all species.
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Effect of Jerusalem artichoke addition on texture profile of bread
Open Research DataThe dataset contains the results of Jerusalem artichoke addition on the texture of wheat bread. The following bread variants were tested: control bread, bread with 15% and 30% Jerusalem artichoke addition. Measurements were made immediately after baking. On the basis of data, the following parameters were determined: hardness, elasticity, cohesion and...