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Search results for: DRIVING SIMULATOR STUDIES
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AFM, XRD and HRTEM studies of annealed FePd thin films
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Studies on the influence of β-cyclodextrin derivatives on the physical stability of famotidine
PublicationThe usage of Fourier transform infrared spectroscopy, near infrared spectroscopy, differential scanning calorimetry and microscopy is presented in this work focused on the exploration of the effect of CD on the physical stability of famotidine (FAM). The most significant information was achieved by analysis of the second derivatives ofnear infrared (NIR) spectra recorded. Changes in the shape of spectra derivatives allow...
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Elusive π-helical peptide foldamers spotted by chiroptical studies
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Dimolybdenum Tetracarboxylates as Auxiliary Chromophores in Chiroptical Studies of vic-Diols
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Flood Security Strategy - Case Studies from Gdańsk Region
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Blood Pressure - Pulse Transit Time Relationships: Comparative Studies
PublicationA non-invasive and continuous blood pressure estimation could allow a better diagnosis and an earlier detection of various diseases. It could be performed using a photoplethysmography. However, it requires that a relation between blood pressure and pulse transit time is known. Eleven theoretical formulas were used in obtaining the simulated and noise free synthetic data. Then, they were utilized in validation of three, commonly...
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Studies on optical transmittance of boron-doped nanocrystalline diamond films
PublicationThickness is one of the most important parameters in many applications using thin layers. This article describes thickness determination of a boron-doped nanocrystalline diamond (NCD) grown on fused silica glass. A spectroscopic measurement system has been used. A high refractive index (2.3 at 550nm) was achieved for NCD films. The thickness of NCD samples has been determined from the transmission spectrum.
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Theoretical studies of fragmentation processes of neutral and ionized furan molecule
PublicationThis PhD thesis focuses on the fragmentation mechanism of the furan molecule in the gas phase. The approach taken in this work comprised of three theoretical methodologies considering the dynamical, energetical and entropic aspects of the studied process. First, molecular dynamics simulations were performed. Next, the potential energy surfaces were explored at the DFT/B3LYP level of theory. Finally, a new statistical Microcanonical...
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Preliminary studies on the effect of feed speed on the colour change of wood
PublicationThis paper presents the results of preliminary analyses of the effect of cutting parameters on changes in the colour of wood. Beech wood cut with use circular saw was analysed. The cutting parameter tested was the feed speed, represented by the feed per tooth. Sawing processes with different feed per tooth ranging from 0.0008 mm to 0.09 mm were analysed. It was observed that over the entire range of feed rate per tooth analysed,...
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Conformational studies of neurohypophyseal hormones analogues with glycoconjugates by NMR spectroscopy
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Dynamic tests of composite footbridge segment – experimental and numerical studies
PublicationExperimental dynamic tests and numerical simulations of a 3 meters long segment of a footbridge made of polymer composites are presented in the paper. The span-length is reduced, however dimensions of cross-section are the same as the target footbridge. The segment structure is made of sandwich panels, which consist of fibre reinforced polymer (GFRP) laminates (skins) and a PET foam (core). The first part of the paper contains...
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The studies on the limonene oxidation over the microporous TS-1 catalyst
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Insulin resistance and hypertension: lessons learned from studies in children
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The effectiveness of therapeutic massage in neck pain – prospective, preliminary studies
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Potentiometric and AM1d studies of silicon podands—silver(I) complexes
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15 N NMR and FTIR studies of 2,4-dinitroanilines and their salts
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Studies on nitrogen modified TiO2 photocatalyst prepared in different conditions
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Cobalt(II) silanethiolato complexes with dimethylpyridines:crystal structures and spectroscopic studies
PublicationTri-tert-butoksysilanotiolany kobaltu(II) z 2,5-dimetylopirydną, 3,4-dimetylopirydną i 3,5-dimetylopirydną jako dodatkowymi ligandami zostały zsyntetyzowane w reakcji z bimetalicznym [Co{SSi(OtBu)3}(NH3)]2 z odpowiednią pochodną pirydyny. Kompleksy zostały zcharakteryzowane za pomocą rentgenografii strukturalnej, analizy elementarnej, spektroskopii FT-IR oraz UV-vis. Prezentowane kompleksy są cztero- i pięciokoordynacyjne o rdzeniu...
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NMR dispersion studies of poly(ethylene oxide)/sodium montmorillonitenanocomposites
PublicationPraca prezentuje wyniki badań dotyczące struktury nanokompozytów opartych na matrycy poli(tlenku etylenu) zawierającej montmorylonit sodowy. Układy zawierające PEO/MMT scharakteryzowano metodami NMR (Fast Field Cycling NMR), DSC oraz XRD.
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MOOCs in SP4CE - case studies (Strategic Partnership for Creativity and Entrepreneurship)
PublicationSP4CE stands for Strategic Partnership for Creativity and Entrepreneurship project which has been funded with support from the European Commission under the ERASMUS+ Programme in the period 1st September 2014 - 31st August 2017. The main purpose of SP4CE project is to design innovative e-learning tools for collaboration between students, enterprises and teachers. It concentrates on identifying users’ needs and supports the development...
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High pressure studies of Eu2+ and Mn2+ doped NaScSi2O6 clinopyroxenes
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Hydrodynamic studies in magnetically assisted external-loop airlift reactor
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Hydration of amino acids: FTIR spectra and molecular dynamics studies
PublicationThe hydration of selected amino acids, alanine, glycine, proline, valine, isoleucine and phenylalanine, has been studied in aqueous solutions by means of FTIR spectra of HDO isotopically diluted in H2O. The difference spectra procedure and the chemometric method have been applied to remove the contribution of bulk water and thus to separate the spectra of solute-affected HDO. To support interpretation of obtained spectral results,...
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Studies of the separation performance of silanized silica gel for simulated distillation
PublicationWe present the results of investigations of the chromatographic (sorptive) properties of silanized silica gel as a stationary phase for gas chromatography used for simulated distillation. Commercially available silanized sorbent (particle diameter range 63–200 m, average pore size 60 Å) was sieved to obtain the 80–100 mesh fraction (180–150 m). The obtained results revealed that silanized silica gel allows the complete separation...
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Impedance Studies of Phosphate-iron Glasses Containing Niobium and Titanium
PublicationThe ac and dc conductivity in phosphate-iron-niobate glasses with addition of titanium oxide was investigated as a function of temperature and frequency with the use of impedance spectroscopy. The topography and microstructure of glasses were investigated by the means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and confocal microscopy methods. The obtained results show that all samples are amorphous but they...
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Pedestrian safety in road traffic – studies, recommendations and proposed improvements
PublicationPedestrians are involved and most frequently the victims of every third road accident in Poland. Pedestrian accidents most frequently occur in complex circumstances, as a result of many factors related to the behaviour of drivers and pedestrians. The basic parameters that determine road safety include the perception of traffic and visibility on the road. The paper will present the results of research conducted within the project...
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Preliminary in vivo studies of a new lecitin-based formulation of paclitaxel
PublicationPrzeprowadzono wstępne badania in vivo of PTX opartego na lecytynie. Roztwór jest stabilny przez 24 godziny. Po podaniu królikom dawki 0,66mg/kg/h nie zanotowano zmian morfologicznych krwi w porównaniu do komercyjnego produktu Taxol.
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Theoretical Auger and photoionization studies for open shell atoms andions.
PublicationWykorzystano program komputerowy RATIP do badań własności atomów i jonów o dowolnej konfiguracji. Położono nacisk na obliczenia szeregu własności elektronów Augera i fotojonizacji, aby dokonać porównań z ostatnio wykonywanymi doświadczeniami.
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Structural studies of bismuth nanocrystals embedded in SiO2 or GeO2 matrices.
PublicationW wyniku wygrzewania w atmosferze wodoru szkieł bizmutowych i germanowych otrzymano warstwę nanogranul bizmutu w otoczeniu amorficznej matrycy oraz powierzchniową warstwę bizmutowych granul. Grubość i struktura tak otrzymanych warstw silnie zależy od czasu i temperatury redukcji.
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Time-frequency characteristics of chemical oscillations. Experimental and model studies.
PublicationW publikacji zaprezentowano wykorzystanie czasowo-częstotliwościowych metod analizy sygnałów niestacjonarnych do badania reakcji Biełousowa-Żabotyńskiego. Zastosowanie krótkoczasowej transformaty Fouriera (STFT) pozwoliło na uzyskanie spektrogramów przedstawiających zmiany energii i częstotliwości oscylacji w trakcie trwania reakcji chemicznej. Przedyskutowano podobieństwa i różnice pomiędzy spektrogramami wygenerowanych dla eksperymentalnych...
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Computational studies of friction forces for hard tissue cultivation in bioreactor.
PublicationPonieważ wymiana naturalego stawu na endoprotezę może być dokonywana 2-3 razy w życiu, problem leczenia przez transplantację tkanek chrzęstnych nabiera dużego znaczenia. Przeszczepów tkanki można dokonywać z sukcesem wiele razy. W bioreaktorach, środowisko hydrodynamiczne kształtuje hodowlę tkanek in vitro w obecności sił tarcia, poprzez bezpośrednie działanie na morfologię komórek a także poprzez pośrednie działanie na tkankę...
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Positron Annihilation Studies of Silicon Oxides and Oxygen Precipitates in Silicon
PublicationTechniki pozytonowe dają możliwości badania defektów i zmian strukturalnych nie obserwowanych innymi metodami. W tej pracy zastosowano 3 różne techniki pozytonowe do badania zmian strukturalnych i tworzenia wydzieleń SiOx w krzemie.
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Ionophores in polymeric membranes for selective ion recognition; impedance studies
PublicationBadania impedancyjne membran zawierających jonofory selektywne na kation Na+ (L1) i Cs+(L2) wykazały, ze stala dielektryczna materiału membrany zależy od typu uzytego plastyfikatora i zmienia się w zakresie od 28 do 60. Rezystancja membran zawierających ligand L1 i L2 wynosi 0.15 -1.4 Mohm w zależności od stężenia elektrolitu zewnnetrznego. Testowona dwa typy elektrod jonoselektywnych: elektrody typu ASS z polimerem przewodzącym...
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Kinetics studies of recrystallization process of metallic catalysts for ammonia synthesis
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Studies of membrane scaling during water desalination by membrane distillation
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Wettability Studies of Capillary PTFE Membranes Applied for Membrane Distillation
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Laser operated nonlinear optical studies of BiFe0,9Cr0,1O3 and BiFe0,9Al0,1O3 multiferroics
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Adenylate kinases of thermophilesAquifex aeolicusandGeobacillus stearothermophilus: biochemical and kinetic studies
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Phase Transitions in Pores: Experimental and Simulation Studies of Melting and Freezing
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Proton hydration in aqueous solution: FTIR studies of HDO spectra
PublicationW artykule scharakteryzowano sfery hydratacyjne protonu w roztworze wodnym na podstawie pomiarów widm FTIR wody półciężkiej (HDO), rozcieńczonej izotopowo w H2O. Wyniki eksperymentalne skonfrontowano z obliczonymi metodami chemii kwantowej strukturami niewielkich klasterów wodnych typu H+(H2O)n. Otrzymane geometrie optymalne porównano z odległościami międzyatomowymi otrzymanymi na podstawie położeń pasm HDO. Pierwsza sfera hydratacyjna...
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Evaluating experimental molecular physics studies of radiation damage in DNA*
PublicationThe field of Atomic and Molecular Physics (AMP) is a mature field exploring the spectroscopy, excitation, ionisation of atoms and molecules in all three phases. Understanding of the spectroscopy and collisional dynamics of AMP has been fundamental to the development and application of quantum mechanics and is applied across a broad range of disparate disciplines including atmospheric sciences, astrochemistry, combustion and environmental...
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High-accuracy polarimetric studies on lead germanate single crystals
PublicationA high-accuracy polarimetric technique has been used for the characterization of a lead germanate ferroelectric single crystal. The measurement results of the linear and circular birefringence in the [010] direction at a wavelength of 633 nm under the influence of an electric field are presented. Gyration–electric field hysteresis loops at alternative crystal positions in the polarization system have been used to determine the...
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Dielectric Spectroscopy Studies and Modelling of Piezoelectric Properties of Multiferroic Ceramics
PublicationCompounds and solid solutions of bismuth ferrite (BiFeO3)—barium titanate (BaTiO3) system are of great scientific and engineering interest as multiferroic and potential high-temperature lead-free piezoelectric materials. In the present paper, the results of research on the synthesis and characterisation of 0.67Bi1.02FeO3–0.33BaTiO3 (67BFBT) ceramics in terms of crystal structure and dielectric and piezoelectric properties are reported....
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Experimental and theoretical studies of resonance effects during silo flow.
PublicationPrzedstawiono badania nad rezonansowymi efektami dynamicznymi podczas przepływów silosowych. Wpływ rezonansu na wielkość naporu był analizowany przy pomocy badań doświadczalnych i obliczeń MES na bazie prawa mikropolarnego sprężysto-plastycznego. Doświadczenia wykonano w silosie o przekroju okrągłym i prostokątnym. Zaproponowano efektywną metodę redukcji efektów dynamicznych.
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Phospholipid-functionalized gold electrode for cellular membrane interface studies - interactions between DMPC bilayer and human cystatin C
PublicationThis work describes the electrochemical studies on the interactions between V57G mutant of human cystatin C (hCC V57G) and membrane bilayer immobilized on the surface of a gold electrode. The electrode was modified with 6-mercaptohexan-1-ol (MCH) and 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC). DMPC was used as a membrane mimetic for monitoring electrochemical changes resulting from the interactions between the functionalized...
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A Text as a Set of Research Data. A Number of Aspects of Data Acquisition and Creation of Datasets in Neo-Latin Studies
PublicationIn this paper, the authors, who specialise in part in neo-Latin studies and the his-tory of early modern education, share their experiences of collecting sources for Open Research Data sets under the Bridge of Data project. On the basis of inscription texts from St. Mary’s Church in Gdańsk, they created 29 Open Research Data sets. In turn, the text of the lectures of the Gdańsk scholar Michael Christoph Hanow, Praecepta de arte...
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Synthesis of thiol derivatives of azobenzocrown ethers. The preliminary studies on recognition of alkali metal ions by gold nanoparticles functionalized with azobenzocrown and lipoic acid
PublicationThe article presents the synthesis of novel 13- and 16-membered azobenzocrown derivatives with peripheral thiol moieties and preliminary studies assessing their possible application in plasmonic sensors based on gold nanoparticles. The effect of the length of the chain connecting the macrocycle with the thiol group and the effect of the presence of the additional functional compound,...
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Spectroscopic studies of Nb-doped tricalcium phosphate glass-ceramics prepared by sol-gel method
PublicationCalcium-phosphate based glasses and glass-ceramics play a crucial role in the tissue engineering development. Apart from their high biocompatibility and excellent ability to undergo varying degrees of resorbability1, they exhibit relatively high bioactivity and due to that they are commonly used as bone and dental implants. A substantial research effort is devoted to improve calcium-phosphate materials physico-chemical properties...
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Environmental impacts of food waste management technologies: A critical review of life cycle assessment (LCA) studies
PublicationFood waste is a serious global problem. Therefore, it is essential to reduce food waste and adopt recycling strategies to minimize its environmental impacts. However, conventional waste disposal methods emit harmful gases such as dioxin, CH4, N2O, and NH3, which contaminate the air and water resources. This work reviews the environmental consequences of food waste based on lifecycle assessment (LCA) techniques using methods such...
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Small-scale passive emission chamber for screening studies on monoterpene emission flux from the surface of wood-based indoor elements
PublicationAnalysis of literature data published in the last fewyears leads to the conclusion that in the process of assessment of emission flux of organic compounds emitted from different types of equipment and finishing materials, new types of devices, among which small-scale passive emission chambers for the performance of in-situ research are designed and applied on a larger scale. These devices can be successfully used for the assessment...