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Raw data and data processed into graphs for the article entitled: Microstructural dependence of tribological properties of Ti-6Al-4V ELI alloy after slide burnishing/shot peening and low-temperature gas nitriding
No full textThe file contains data-set to the article entitled "Microstructural dependence of tribological properties of Ti-6Al-4V ELI alloy after slide burnishing/shot peening and low-temperature gas nitriding".The files present results of investigations of near surface areas using transmission and scanning-transmission electron microscopy (TEM/ STEM) and also values of hardness evaluation, friction and wear analysis after burnishing and shot peening as pre-nitriding treatment.</p
Photoluminescence and Raman spectroscopy of Ce3+ doped Y3Al5O12 single crystalline films grown onto Y3Al5O12 and Lu3Al5O12 substrates
No full textRaman spectroscopy, high spectral resolution luminescence, and X-ray diffraction techniques were employed to study two Ce3+ doped Y3Al5O12 single crystalline films grown by liquid phase epitaxy method onto Y3Al5O12 and Lu3Al5O12 single crystal substrates. Optical spectra were obtained with a micrometer step along the cross-sections of epitaxial structures, allowing excellent differentiation of the film, the transition layer, and the substrate of each sample. X-ray measurements demonstrate the mismatch between the lattice constants of the Y3Al5O12:Ce3+ film and its Lu3Al5O12 substrate, an effect related to different compositions. Consequently, the film grown onto Lu3Al5O12 exhibits higher residual stresses than its counterpart grown onto Y3Al5O12. This was confirmed by a mutual comparison of the Raman bands positions of the films. The luminescence spectra of both samples consist mainly of cerium 5d-4f emission, the intensity of which allows for additional study of epitaxial cross section and estimation of the size of transition layer.</p
Comparison of different SPME formats dedicated to the analysis of volatile compounds - a comprehensive study
No full textThis research compares different solid-phase microextraction (SPME) formats for analyzing volatile compounds, with a focus on thin-film SPME (TF-SPME). The study evaluates various TF-SPME devices and their efficiency in extracting food odorants from standard mixtures and real samples like beer. Results show that HLB-TF-SPME is the most effective, offering better sensitivity and a wider analyte range than traditional SPME fibers and stir bars. The study highlights TF-SPME’s potential for advanced food analysis, particularly when combined with GCxGC-ToFMS for detecting complex volatile profiles.Data contains a ReadMe.txt file.</p
Questions and corresponding answers used in the assessment of Polish educational language policy and law
No full textThis dataset includes:A set of questions for evaluating educational language policy (file: questions_for_evaluating_the_educational_language_policy.ods).Questions and corresponding answers used in the assessment of Polish educational language policy and law.The questions are designed based on Richard Ruíz's classification of the role of language in society, which distinguishes three orientations: language-as-right, language-as-resource, and language-as-problem.The presented questionnaire and assessment outcomes are discussed in detail in the article: "Educational language policy for refugee-background students in the spotlight: Cross-links between Polish law and EU law" (DOI: 10.1558/jmtp.25950).</p
Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties
No full textpublikacja + powiązane daneM. Ozga, E. Zielony, A. Wierzbicka, A. Wolska, M. Klepka, M. Godlewski, B.J. Kowalski, B.S. WitkowskiEffect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film propertiesBeilstein Journal of Nanotechnology 15, 743-754(2024), doi: 10.3762/bjnano.15.62</p
Monk Fruit Extract and Sustainable Health: A PRISMA-Guided Systematic Review of Randomized Controlled Trials
No full textThis repository contains extracted data from Scopus, PubMed, Cochrane Library, and Web of Science, as part of a systematic literature review on the health effects of monk fruit extract (Siraitia grosvenorii).</p
Comparing the solderability of different SAC0307 composite solder pastes
No full textIn the present study, the effect of four oxide ceramics (TiO2, ZnO, ZrO2, and CuO) as reinforcements was investigated on the soldering parameters of the SAC0307 solder alloy. The oxide ceramics were used in nano-powder format. Composite solder pastes were composed by the standard ball milling process of the nano-particles into the SAC0307 solder paste in 0.25wt% weight fraction. The primary particle sizes of the NPs were the following: 21nm - TiO2, <50nm - ZnO, <100nm ZrO2, and <50nm CuO. The NPs were homogeneously mixed into the SAC0307 solder paste by a YX paste mixer with 400rpm for 12 mins. The wettability, shear strength, and microstructure of the composite solder joints were studied and compared. The first investigation was the spreading test to study the wetting properties of the solder alloys (Tab. 1). Test surfaces (50x50mm) were prepared on FR4 substrates with Cu wiring with imm-Ag surface finishing. On each test boards four circular solder deposits were screen printed with 5mm diameter and 125 µm thickness. The solder pastes were reflowed in a vapour phase soldering (VPS) oven. The wetted surface area was measured by an Olympus BX50 optical-microscope. During the second experiment, solder joints were fabricated by SMT on one-layer standard FR4 PCBs with Cu wiring. A DAGE 2400 shear tester has been used to measure the shear force of the solder joints. Metallographic cross-sections were also prepared from the solder joints to compare their microstructures. The metallogrpahic cross-sections were investigated with an FEI Inspect-S50 SEM.The results showed that the ceramic nano-particles did not have a major effect on the wettability of the solder. Shear strength increases were observed at the composite joints, except in the case of ZnO. Generally, Sn grain refinement was found in the Sn-matrix which could be the reason for the shear strength increase.The dataset consists of supplementary SEM micrographs of the cross-sectioned solder joints.</p
Wyniki badań jakościowych - grupy fokusowe
No full textTranskrypcje z badań fokusowych wśród uczestników - młodych konsumentów (w podziale na płeć) z Polski, Korei Południowej i Stanów Zjednoczonych. Przeprowadzono sześć wywiadów pogłębionych w trzech krajach, w każdym wywiadzie uczestniczyło od 4-6 uczestników. Badanie dotyczy akceptacji rozszerzonej rzeczywistości przez młodych konsumentów podczas zakupów online (badany produkt - okulary). W badaniu zidentyfikowano czynniki wpływające na akceptację rozszerzonej rzeczywistości podczas zakupów online okularów w postaci motywów i ryzyk. Odnotowano także różnice pomiędzy badanymi krajami, które związane są z odmiennościami kulturowymi.Transcriptions from focus groups among participants - young consumers (by gender) from Poland, South Korea, and the United States.Six in-depth interviews were conducted in three countries, with between 4-6 participants in each interview. The study examines young consumers' acceptance of augmented reality during online shopping (the product studied—eyeglasses). It identified factors influencing the acceptance of augmented reality during online purchases of eyeglasses in the form of motives and risks. Differences between the studied countries, which are related to cultural differences, were also noted.</p
Photo-Oxidation of Methanol in a Complex with Pyrido[2,3-b]pyrazine: a Nonadiabatic Molecular Dynamics Study
No full textNon-adiabatic dynamic simulation data</p
Tunable micromechanics and morphology of plasticized polyhydroxyalkanoate: roles of structural interactions and crystallization in solvents
No full textThe deposited data contain results obtained from measurements: Scanning Electron Microscopy (SEM), Differential Scanning Calorimetry (DSC), Dynamic Mechanical Analysis (DMA), Thermogravimetric Analysis (TGA), Gel Permeation Chromatography (GPC), Nuclear Magnetic Resonance (NMR), rheological and tensile tests. The attached data are provided in the form of text and Excel files as well as source files typical for the respective software used.Each file is named using a consistent structure that reflects the measurement type and the specific sample or experimental condition. For example, files such as DMA_data_1 and DMA_data_2 refer to data collected from the same type of experiment (Dynamic Mechanical Analysis in this case), but for different samples or experimental conditions. The numerical suffix distinguishes between these variations.The attached data were obtained using the following instruments: A Universal Testing Machine (Instron 5582, High Wycombe, UK) operating at a strain rate of 5%/min in accordance with ISO 527-2; a Dynamic Mechanical Analyzer (DMA Q800, TA Instruments, New Castle, DE, USA) for assessing the thermomechanical properties of rectangular samples; and a Differential Scanning Calorimeter (DSC Q20, TA Instruments, New Castle, DE, USA), calibrated with indium, to study melting and non-isothermal crystallization behavior. Morphological analysis of cryogenically fractured surfaces was conducted using a Scanning Electron Microscope (JEOL JSM-5500 LV, Tokyo, Japan). Thermogravimetric Analysis (TGA) was carried out using a Rigaku Thermo plus TG 8120 instrument, from room temperature to 600 °C at a heating rate of 10 °C/min under a nitrogen atmosphere. To monitor shear-induced crystallization, a Linkam CSS450 optical shearing system (Waterfield, UK) equipped with a polarized light microscope (Nikon Eclipse 80i, Buckinghamshire, UK) was utilized. The average molecular weight (Mw) was determined via Gel Permeation Chromatography (GPC) using an Agilent system comprising a G1379A degasser, 1100 Series pump, two PLGel 5 μm MIXED-C columns, and dual laser detectors: a Wyatt Optilab Rex differential refractometer and a Dawn Eos light scattering detector (Wyatt Technology Corporation, Santa Barbara, CA, USA). Solid-state Nuclear Magnetic Resonance (ss-NMR) spectra were recorded on a Bruker AVANCE III WB 400 MHz spectrometer.</p
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