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Wyniki wyszukiwania dla: unmanned surface vehicle
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Strain sequence effect on fatigue life and fracture surface topography of 7075-T651 aluminium alloy
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Landsat 8 Data as a Source of High Resolution Sea Surface Temperature Maps in the Baltic Sea
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Application of the Finite Element Method for Modelling of the Spatial Distribution of Residual Stresses in Hybrid Surface Layers
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Exploring of electronic structure of nitrogen-modified TiO2 photocatalysts through photocurrent and surface photovoltage studies
PublikacjaPrzeprowadzono pomiary fotonapięcia powierzchniowego i fotoprądu w obecności różnych reduktorów celem otrzymania eksperymentalnego potwierdzenia położenia pasma walencyjnego w strukturze elektronowej tlenku tytanu(IV) modyfikowanego azotem. Zaobserwowano silne sprzężenie poziomów N 2p i O 2p, którego konsekwencją jest powstanie nowego pasma walencyjnego
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Adsorption of a metalorganic complex at a metal surface: A density functional theory study vs. model description
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Surface Properties and Photocatalytic Activity of KTaO3, CdS, MoS2 Semiconductors and Their Binary and Ternary Semiconductor Composites
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Atmospheric and Surface Water Pollution Interpretation in the Gdańsk Beltway Impact Range by the Use of Multivariate Analysis
PublikacjaOpracowanie dotyczny zastosowania hierarchicznej analizy klastrów i testów nieparametrowych celem dokonania interpretacji wpływu Obwodnicy Trójmiejskiej. W większości przypadków wykryto obecność oddziaływań antropogenicznych (zastosowanie nawozów, transport, posypywanie dróg solą w okresie zimowych) jak i pół-środowiskowych (aerozole morskie, erozja materiałów budowlancyh). Nie wykrytu jednak ścisłej zależności okresowej dla zanieczyszczeń...
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The impact of drying and steaming processes on surface color changes of tension ad normal beech wood
PublikacjaThe aim of the article is to present the influence of high temperature to selected properties of beech wood (Fagus sylvatica L.). The properties such as moisture content, color changes and longitudinal warping were analyzed. The quality of beech wood is determined based on structure and properties of wood, frequency of defects in wood material. The tension wood is considered as an important wood defect causing negative alterations...
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Metrological characteristics of the flat voltammetric electrode in time domain with a reversible electrochemical reaction running on the surface
PublikacjaW artykule przedstawiono właściwości metrologiczne płaskich elektrod woltamperometrycznych. Omówiono wpływ napięcia polaryzującego na wartości parametrów charakteryzujących te elektrody.
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Report vconcerning corrosion reasons of s/y Lunar hull surface and possible way of repair
PublikacjaDokonano oceny korozji kadłuba jednostki pływającej, przyczyn powstania korozji oraz zaproponowano sposoby naprawy miejsc skorodowanych.
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One-Step Synthesis of W/O and O/W Emulsifiers in the Presence of Surface Active Agents
PublikacjaThe main goal of this study was to describe the method of the synthesis of the dodecyl-, tetradecyl-, hexadecyl- and octadecyl-propylene glycol emulsifiers in the presence of selected anionic and nonionic surfactants. Acyl propylene glycol emulsifiers were produced by esterification of propane-1,2-diol (propylene glycol, PG) with C12:0-C18:0 fatty acids in the presence of anionic sodium dodecyl sulfate (SDS) and nonionic-poly(ethylene...
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Structure and electrochemical reactivity of 3-[tris(2-methoxyethoxy)silyl]-propanethiol adsorbed on silver surface
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Application of image processing methods for the characterization of selected features and wear analysis in surface topography measurements
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On the Microstructure, Microhardnessand Wear Behavior of Gray Cast Iron Surface Layer after Laser Strengthening
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Micro-Abrasive Wear Testing of Surface Engineered Surgical Grade CoCrMo Alloy for Biotribological Applications
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Optimisation of machining parameters during ball end milling of hardened steel with various surface inclinations
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Evaluation of the Surface Topography of Ti6Al4V Alloy after the Finish Turning Process under Ecological Conditions
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Formation of surface layer in metal matrix composite A359/20SiCP during laser assisted turning
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Selective Introduction of Hydroxyl Groups Onto the Surface of Carbon Nanotubes via Chlorination and Hydrolytic Dechlorination
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Effect of the Post-Weld Surface Condition on the Corrosion Resistance of Austenitic Stainless Steel AISI 304
PublikacjaSurfaces of welded elements made of corrosion-resistant (stainless) steels develop temper colours. The removal of thickened oxide layers off steels exposed to temperatures below 300°C is necessary and entails the restoring of high corrosion resistance of the stainless steel. The article presents tests concerned with the effect of a method applied to remove post-weld temper on the corrosion resistance of austenitic stainless steel...
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Partitioning of heavy metals in sub-surface flow treatment wetlands receiving high-strength wastewater
PublikacjaThe retention of heavy metals at two pilot-scale treatment wetlands (TWs), consisting of two vertical flow beds (VSSF) followed by a horizontal flow bed (HSSF) was studied. The TWs received highstrength wastewater: reject waters from sewage sludge centrifugation (RW) and landfill leachate (LL). The concentrations of metals: Fe, Mn, Zn, Al, Pb, Cu, Cd, Co, Ni were measured in treated wastewater, substrate of the beds and in plant...
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The effect of Fe on chemical stability and oxygen evolution performance of high surface area SrTix-1FexO3-δ mixed ionic-electronic conductors in alkaline media
PublikacjaDevelopment of environmentally friendly, high performing oxygen evolution reaction (OER) catalysts is an important research challenge. In this work, iron doped strontium titanates with a general formula SrTi1-xFexO3-δ (x = 0.35, 0.50, 0.70, 0.90, and 1.00) denoted as STFx, were synthesized via a solid state reaction technique and characterized in terms of oxygen evolution reaction electrocatalysis in an alkaline electrolyte (0.1...
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High performance super-twisting sliding mode control for a maritime autonomous surface ship (MASS) using ADP-Based adaptive gains and time delay estimation
PublikacjaThis research addresses two kinds of problems related to optimal trajectory tracking of a Maritime Autonomous Surface Ship (MASS): those caused by the time-varying external disturbances including winds, waves and ocean currents as well as those resulting from inherent dynamical uncertainties. As the paper shows, an accurate and robust optimal controller can successfully deal with both issues. An improved Optimal Adaptive Super-Twisting...
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High performance super-twisting sliding mode control for a maritime autonomous surface ship (MASS) using ADP-Based adaptive gains and time delay estimation
PublikacjaThis research addresses two kinds of problems related to optimal trajectory tracking of a Maritime Autonomous Surface Ship (MASS): those caused by the time-varying external disturbances including winds, waves and ocean currents as well as those resulting from inherent dynamical uncertainties. As the paper shows, an accurate and robust optimal controller can successfully deal with both issues. An improved Optimal Adaptive Super-Twisting...
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Synthesis, characteristics and mechanistic insight into the clays and clay minerals-biochar surface interactions for contaminants removal-A review
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Comparison of usefulness of three emergent macrophytes for surface waterprotection against pollution and eutrophication:case study, Bielikowo,Poland.
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Atomic force microscopy technique for the surface characterization of sol–gel derived multi-component silica nanocomposites
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Long-term changes and distribution of mercury concentrations in surface sediments of the Gdansk Basin (Southern Baltic Sea)
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Study of a method for the preparation of standard gas mixtures based on thermal decomposition of surface compounds. Application to isothiocyanates
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Application of Time-Frequency Analysis of Acoustic Signal to Detecting Flat Places on the Rolling Surface of a Tram Wheel
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Chemical diffusion and surface exchange in selected Ln–Ba–Sr–Co–Fe perovskite-type oxides
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Surface Layer Properties of Sintered Ferritic Stainless Steel Remelted and Alloyed with FeNi and Ni by HPDL Laser
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Laser Thermal Oxidation by Ytterbium-Doped Fibre Laser of the Hot and Cold-Rolled Stainless Steel Surface
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Preparation of matrix-free materials of volatile analytes based on the controlled decomposition of surface compounds: a new concept
PublikacjaW publikacji przedstawiono nową koncepcję wytwarzania bezmatrycowych materiałów odniesienia wykorzystującą związki powierzchniowe, które są chemicznie związane z powierzchnią nośnika (żelu krzemionkowego, szkła porowatego, pałeczek szklanych pokrytych żelem krzemionkowym, oraz włókna szklanego), które w określonych warunkach temperaturowych ulegają termicznemu rozkładowi lub przegrupowaniom chemicznym z uwolnieniem ściśle określonej...
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Phenolics occurrence in surface water of the Dniester river basin (West Ukraine): natural background and industrial pollution
PublikacjaW pracy przedstawiono wyniki badań poziomu fenoli w wodach rzecznych pochodzących ze zlewni Dniestru. Określono zarówno poziom tła naturalnego tych związków w wodzie rzecznej (na poziomie 0,012 mg/l) jak i poziom stężeń tych związków w części zlewni podlegającej antropopresji. Główne źródła emisji antropogenicznej są związane z przemysłem petrochemicznym. Poziom stężenia sumy fenoli w wodzie rzecznej na obszarach objętych wpływem...
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Variations in the near-surface atmospheric electric field at high latitudes and ionospheric potential during geomagnetic perturbations
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Effect of substorms in the Earth’s nightside sector on variations in the surface atmospheric electric field at polar and equatorial latitudes
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Maximum contact stress estimation on acetabular surface in total hip replacement using fuzzy reasoning system
PublikacjaArtykuł przedstawia rozmyty system wnioskowania dla oszacowania maksymalnego naprężenia kontaktowego na powierzchni panewki endoprotezy stawu biodrowego. Maksymalne naprężenie kontaktowe zostało określone na podstawie kąta Wiberga oraz masy ciała pacjenta.
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Highly efficient rutile TiO2 photocatalysts with single Cu(ii) and Fe(iii) surface catalytic sites
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The cell surface protein Ag43 facilitates phage infection of Escherichia coli in the presence of bile salts and carbohydrates
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An investigation of selected monoaromatic hydrocarbons released from the surface of polystyrene lids used in coffee-to-go cups
PublikacjaA consumer trend towards the fast preparation of beverages has increased the popularity of hot beverages (especially coffee and tea) available in disposable containers called coffee-to-go cups with fitted polystyrene lids. Lids in contact with hot beverages may release low molecular weight organic compounds into the gaseous phase causing direct exposure of consumers to these compounds during drinking. The paper describes in detail...
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Structure and electrochemical behaviour of 4,7-diazaheptyl-trimethoxy-silane and vinyl-trialkoxy-silane adsorbed at silver surface
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Selection of Methods of Surface Texture Characterisation for Reduction of the Frequency-Based Errors in the Measurement and Data Analysis Processes
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Suppression of the High-Frequency Errors in Surface Topography Measurements Based on Comparison of Various Spline Filtering Methods
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Yield surface identification of CP-Ti and its evolution reflecting pre-deformation under complex loading
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Preliminary design of the last stage of supercritical steam turbine and proposition of anti-erosion coating for blades surface
PublikacjaIn this article a preliminary design of the last stage of supercritical steam turbine has been presented. A computational model of supercritical thermal cycle has been created in order to determine steam parameters at the stage inlet and outlet. The model was based on the structure of German coal-fired power plant Datteln 4. Further steam-flow parame-ters and dimensions of stator and rotor blades have been calculated analytically....
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Effect of the Relative Position of the Face Milling Tool towards the Workpiece on Machined Surface Roughness and Milling Dynamics
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Experimental investigations and prediction of WEDMed surface of nitinol SMA using SinGAN and DenseNet deep learning model
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Modelling the Kerf Angle, Roughness and Waviness of the Surface of Inconel 718 in an Abrasive Water Jet Cutting Process
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Formation of Surface Topography During Turning of AISI 1045 Steel Considering the Type of Cutting Edge Coating
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