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Search results for: oxygen evolution reaction
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Investigation of In-doped BaFeO3−δ perovskite-type oxygen permeable membranes
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Microstructural evolution and mechanical behavior of activated tungsten inert gas welded joint between P91 steel and Incoloy 800HT
PublicationThis study examines the welded joint between P91 steel and Incoloy 800HT using the Activated Tungsten Inert Gas (A-TIG) welding process. The focus is on analyzing the microstructure and evaluating the mechanical properties of joints made with different compositions of activating flux. Owing to the reversal of the Marangoni effect in which the conventional direction of molten metal flow in the weld pool is reversed due to the application...
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On-line assessment of oil quality during deep frying using an electronic nose and proton transfer reaction mass spectrometry
PublicationWe describe a novel method for the quality assessment of oil utilized for deep frying. The method is based on the analysis of frying fumes using a custom electronic nose. The quality score could be obtained after less than 3 min of analysis and without interrupting the frying process or sampling the oil directly. The obtained results were correlated with the peroxide value using a multivariate linear regression model. The most...
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Photocatalytic hydrogen evolution from glycerol-water mixture under visible light over zinc indium sulfide (ZnIn2S4) nanosheets grown on bismuth oxychloride (BiOCl) microplates
PublicationZnIn2S4 (ZIS) is one of the widely studied photocatalyst for photocatalytic hydrogen evolution applications due to its prominent visible light response and strong reduction ability. However, its photocatalytic glycerol reforming performance for hydrogen evolution has never been reported. Herein, the visible light driven BiOCl@ZnIn2S4 (BiOCl@ZIS) composite was synthesized by growth of ZIS nanosheets on a template-like hydrothermally...
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Sensitive Demonstration of the Twin-Core Couplers including Kerr Law Non-Linearity via Beta Derivative Evolution
PublicationTo obtain new solitary wave solutions for non-linear directional couplers using optical meta-materials, a new extended direct algebraic technique (EDAT) is used. This model investigates solitary wave propagation inside a fiber. As a result, twin couplers are the subject of this study. Kerr law is the sort of non-linearity addressed there. Because it offers solutions to problems with large tails or infinite fluctuations, the resulting...
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Victor Eremeev prof. dr hab.
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A Novel [4+2] Cycloaddition Reaction Involving Lawesson’s Reagent. Structure and Specific Fragmentations of a New Cyclic 1,2-Thiaphosphinane-4-one
PublicationA crude morpholine enamine of acetone treated with Lawesson’s reagent unexpectedly yielded a six-membered thiaphosphinane-4-one. This compound is the first example of a new class of heterocycles. It has been proven that it is formed from 4-methyl-2-morpholino-1,3-pentadiene which is usually present in crude morpholine enamine batches. A mechanism of this regioselective reaction was postulated and a characteristic chair-like conformation...
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Reaction of thio and seleno phosphoric acid derivatives with O-thioacylated hydroxylamine
PublicationZbadano reakcję siarkowych i selenowych analogów kwasu O,O-neopentylidenofosforowego z O-tiopiwaloilo-N-tert-butylohydroksyloaminą, w której to następuje rozszczepienie wiązania N-O. Znaleziono korelację pomiędzy potencjałem utleniającym anionu pochodnej kwasu fosforowego a przebiegiem badanej reakcji.
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Theoretical description of fundamental-harmonic impedance of a two-step electrode reaction
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Studies on the application of the Passerini reaction and enzymatic procedures to the synthesis of tripeptide mimetics
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Kinetic studies of complexation reaction of polyoxaalkyl phosphates with Fe(III) in ethanol
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Photocatalytic performance of titania nanospheres deposited on graphene in coumarin oxidation reaction
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Fused FeCo catalysts for hydrogen production by means of the ammonia decomposition reaction
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Synthesis of antimicrobial silver nanoparticles through a photomediated reaction in an aqueous environment
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Changes in mussel Mytilus galloprovincialis protein profile as a reaction of water pollution
PublicationW pracy przedstawiono zmiany w profilu białkowym małża Mytilus galloprovincialis jako odpowiedź na zanieczyszczenia wody. Określono pojemność przeciwutleniającą z wykorzystaniem testu TEAC. Stwierdzono różnice w poziomie inhibicji w białku pochodzącym od małży zebranych z regionów zanieczyszczonych w stosunku do małży pochodzących z regionów czystych.Zawartość cynku i kadmu w białkach małży pochodzących z regionów zanieczyszczonych...
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Properties of a lithium solid electrolyte gas sensor based on reaction kinetics
PublicationW artykule przedstawiono zasadę działania, budowę i właściwości czujnika gazu na bazie elektrolitu stałego z mobilnymi jonami litu. Czujnik został przygotowany w technologii grubowarstwowej. Przedstawiono wyniki badań czujnika w mieszaninach gazów toksycznych.
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Reduction of the reaction torque of an in-line four-cylinder four-stroke engine
PublicationW pracy przedstawiono zarówno dokładne jak i uproszczone zależności na przebieg momentu reakcyjnego silnika, jedno i wielocylindrowego, przenoszonego na ramę pojazdu lub fundament. Wyprowadzono zależność na wartość przesunięcia wałków wyrównoważających zapewniającą całkowite wyeliminowanie wpływu sił bezwładności na przebieg momentu reakcyjnego w silnikach czterosuwowych czterocylindrowych. Wprowadzono kryteria doboru optymalnej...
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Modification of Ruddlesden-Popper-type Nd2-xNi0.75Cu0.2M0.05O4±δ by the Nd-site cationic deficiency and doping with Sc, Ga or In: Crystal structure, oxygen content, transport properties and oxygen permeability
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Temperature Evolution, Material Flow, and Resulting Mechanical Properties as a Function of Tool Geometry during Friction Stir Welding of AA6082
PublicationThe friction stir welding process was simulated for joining AA6082 aluminum alloy with the use of the computational fluid dynamics method. Two different tool geometries were used—a tapered cylindrical pin (simple pin) and a hexagonal pin with grooves (complex pin). The analysis of the simulations performed was discussed in terms of temperature evolution during the process, total heat input, residual stresses and material flow....
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Interlayer defect evolution in an coating system on steel under hydromechanical loading
PublicationZaprezentowano wyniki pomiarów impedancyjnych obszaru międzywarstwowego w systemie powłokowym poddanym naprężeniom. Przedstawiono nowy sensor który jest zdolny do detekcji defektów w obszarze międzywarstwowym. Dwuwarstwowy system powłokowy przeznacziony do zastosowań morskich zbadano w celu określenia jego odporności na oddziaływanie cyklicznych naprężeń i zanurzeń w 3% roztworze NaCl.
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Modelling and FE-simulation of plastic ductile damage evolution in plates and shells
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Evolution of physics-based methodology for exploring the conformational energy landscape of proteins
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Evolution of Hydropower Support Schemes in Poland and Their Assessment Using the LCOE Method
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“Evolution of ‘Dementia Infantilis to Childhood disintegrative Disorder, or Autism Spectrum Disorder”
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Influence of initial density of cohesionless soil on evolution of passive earth pressure
PublicationArtykuł porusza problem odporu bezkohezyjnego gruntu. Obliczenia wykonano wykorzystując metodę elementów skończonych na bazie mikropolarnego prawa hipolastycznego. W obliczeniach przyjęto różne początkowe zagęszczenia oraz średnice cząstek gruntu.
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Future Challenges and Issues in Evolution of the Smart Grid and Recommended Possible Solutions
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The evolution of market integration between the eu and poland - price and trade approach
Publicationw artykule przedstawiono dwa podejscia do mierzenia integracji ekonomicznej tj. podejscie od strony cen i podejscie od strony przepływów handlowych. na podstawie 49 wyselekcjonowanych cen produków oraz danych o wolumenie i wartosci eksportu i importu tych produktów autorki wyliczyły przy zastosowaniu wybranych modeli panelowych stopień rynkowej integracji między Polską a krajami UE15.
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Shear band evolution phenomena in direct shear test modelled with DEM.
PublicationA direct shear test is widely used in the geotechnical engineering field. It is an easy and quick test to measure the shear properties of soil. This test often replaces more expensive and difficult tri-axial shear test. Despite that the direct shear test is known and used for a long time, it is still not well investigated at the grain scale. This paper deals with the micro behaviour of the cohesionless sand inside the direct shear...
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Evolution of post welded residual stress due multilayer circumferentialweld of tube.
PublicationOpisano sposób wykorzystania polowego efektu Barkhausena do pomiaru rozkładu naprężeń w spawanych rurach. Przedstawiono procedurę kalibracji oraz wyniki pomiaru naprężeń uzyskanych po stopniowym spawaniu rury.
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Spatial Evolution of the European Container Ports’ System in Perspective of the Location Theory
PublicationThe maritime container terminal is nowadays a spatially incoherent object. From the functional point of view it ends, where their most external components are located. The process of location splitting of container terminals is a new phase of their discrete growth. The external container facilities are being built to improve effectivness of the logistic chain in the hinterland. The new components of container terminals have very...
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Investigations of micro-structure evolution in granular shear zones using DEM.
PublicationW artykule pokazano rozwój różnych zjawisk mikrostrukturalnych na poziomie ziarna podczas parcia piasku na sztywną ściankę przemieszczającą się poziomo. Obliczenia wykonano stosując metodę DEM. Wyniki na poziomie globalnym porównano z wynikami doświadczalnymi i wynikami MES. Szczególna uwagę zwrócono na rozwój wirów w strefach ścinania.
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The Quaternization Reaction of 5-O-Sulfonates of Methyl 2,3-o-Isopropylidene-β-D-Ribofuranoside with Selected Heterocyclic and Aliphatic Amines
PublicationThe synthesis of N-((methyl 5-deoxy-2,3-O-isopropylidene-β-D-ribofuranoside)-5-yl) ammonium salts are presented. To determine the effect of the nucleophile type and outgoing group on the quaternization reaction, selected aliphatic and heterocyclic aromatic amines reacted with: methyl 2,3-O-isopropylidene-5-O-tosyl-β-D-ribofuranoside or methyl 2,3-O-isopropylidene-5-O-mesyl-β-D -ribofuranoside or methyl 2,3-O-isopropylidene-5-O-triflyl-β-D-ribofuranoside...
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SEM images of cross sections of porous Sr0.86Ti0.65Fe0.35O3 oxygen electrodes sintered at different temperatures
Open Research DataThis dataset contains cross sectional images of the porous Sr0.86Ti0.65Fe0.35O3 oxygen electrodes symmetric cells samples interface. Here are presented images of electrodes sintered at 950 °C, 1000 °C and 1050 °C. Images were obtained using a FEI Quanta FEG 250 Scanning Electron Microscope (SEM) with an accelerating voltage of 10 kV in a high vacuum...
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Reaction of 4-benzylidene-2-methyl-5-oxazolone with amines, Part 2: Influence of substituents in para-position in the phenyl ring and a substituent on amine nitrogen atom on the reaction kinetics
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Active Site Architecture and Reaction Mechanism Determination of Cold Adapted beta-D-galactosidase from Arthrobacter sp. 32cB
PublicationArthbetaDG is a dimeric, cold-adapted beta-D-galactosidase that exhibits high hydrolytic and transglycosylation activity. A series of crystal structures of its wild form, as well as its ArthbetaDG_E441Q mutein complexes with ligands were obtained in order to describe the mode of its action. The ArthbetaDG_E441Q mutein is an inactive form of the enzyme designed to enable observation of enzyme interaction with its substrate. The...
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La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ oxygen electrodes for solid oxide cells prepared by polymer precursor and nitrates solution infiltration into gadolinium doped ceria backbone
PublicationInfiltration is a method, which can be applied for the electrode preparation. In this paper oxygen electrode is prepared solely by the infiltration of La0.6Sr0.4Co0.2Fe0.8O3‐δ (LSCF) into Ce0.8Gd0.2O2-δ (CGO) backbone. The use a polymer precursor as an infiltrating medium, instead of an aqueous nitrate salts solution is presented. It is shown that the polymer forms the single-phase perovskite at 600 °C, contrary to the nitrates...
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Monitoring of odors emitted from stabilized dewatered sludge subjected to aging using proton transfer reaction–mass spectrometry
PublicationOne of the potential emission sources of odorous compounds from wastewater treatment plants is sludge processing. The odorous compounds released from dewatered sludge can result in odor nuisance. This study concerns the use of flux hood chamber combined with proton transfer reaction—time of flight—mass spectrometry (PTR-MS) technique for periodical monitoring of odorous compounds emitted from aged, stabilized dewatered sludge samples...
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Measurements of inelastic electron scattering from molecular oxygen at high scattering angles
PublicationBadano procesy wzbudzenia oscylacyjnego poziomów v = 1-9 stanu podstawowego X3 sigma g oraz v=0 stanu wzbudzonego a1 delta g cząsteczki tlenu dla energii 10eV w przedziale kąta rozproszenia od 90 do 180 st. Dla pomiaru v=1 stanu X3 sigma g wyznaczono różniczkowy przekrój czynny na wzbudzenie. W pomiarach wykorzystano podwójny hemisferyczny spektrometr elektrostatyczny wykorzystujący nowozaprojektowane źródło lokalnego pola magnetycznego.
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Effective one-band Hamiltonian for the copper-oxygen plane in the superconducting copper oxides
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The effect of electromagnetic field on reactive oxygen species production in human neutrophilsin vitro
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The Oxygen Transfer Capacity of Submerged Plant Elodea densa in Wastewater Constructed Wetlands
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The impact of declining oxygen conditions on pyrite accumulation in shelf sediments (Baltic Sea)
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Novel cobalt-free BaFe1−xGdxO3−δ perovskite membranes for oxygen separation
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Derivatization of single-walled carbon nanotubes with redox mediator biocatalytic oxygen electrodes
PublicationSingle-walled carbon nanotubes were covalently modyfied with a redox mediator derived from 2,2'-azino-bis-(3-ethylbenzothiazole)-6-sulfonic acid.
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Graphene oxide functionalized with methylene blue and its performance in singlet oxygen generation
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A study of electron impact excitation of molecular oxygen at a scattering angle of 180 st.
PublicationZbadano wzbudzenie tlenu cząsteczkowego w zderzeniu z elektronem dla rozproszenia do tyłu, pod kątem 180 st. Do pomiarów wykorzystano nowe źródło lokalnego pola magnetycznego o geometrii stożkowej.
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Analysis of volatile fraction of sweetie (Citrus maxima × Citrus paradisi) and its parent fruit using proton transfer reaction mass spectrometry
PublicationThe quality of the fruit is affected by several main ingredients and the aroma plays a fundamental role during the selection of fruit by consumers. In the case where several fruit have similar aromas and only one of them has specific health properties, it is very important to find the differences in the volatile organic compounds (VOCs) composition to distinguish these samples. Such situations are often found for hybrid fruit....
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Online Volatile Compound Emissions Analysis Using a Microchamber/Thermal Extractor Coupled to Proton Transfer Reaction-Mass Spectrometry
PublicationIndoor air is a complex and dynamic mixture comprising manifold volatile organic compounds (VOCs) that may cause physiological and/or psychological discomfort, depending on the nature of exposure. This technical note presents a novel approach to analyze VOC emissions by coupling a microchamber/thermal extractor (μ-CTE) system to a proton transfer reaction-mass spectrometer (PTR-MS). This configuration provides an alternative to...
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Reaction quotients of reforming reactions for SOFC and SOFC with LSCNT layer fueled by biogas mixture at 750 C - longterm
Open Research DataThe dataset contains the calculated reaction quotients of reforming reactions for the SOFC and SOFC with LSCNT layer (La0.27Sr0.54Ce0.09Ni0.1Ti0.9O3-s) fueled by synthetic biogas mixture (60:40 CH4:CO2). The outlet concentration of the gases from SOFC were measured using novel FTIR-based unit.
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APPLICATION OF COHEN'S CLASS TIME-FREQUENCY DISTRIBUTIONS IN THE BELOUSOV–ZHABOTINSKY REACTION ANALYSIS
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