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Search results for: chondroitin sulfate
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Smoothing of wood surface by burnishing
PublicationW artykule zaprezentowano rozwój bezwiórowych metod obróbki wykańczającej drewna. Przedstawiono wpływ nagniatania ślizgowego na chropowatość powierzchni drewna. Badania przeprowadzono na próbkach wykonanych z drzewa sosnowego toczonych i nagniatanych ślizgowo. Nagniatanie ślizgowe przeprowadzono z wykorzystaniem nagniataka elastycznego o elemencie ślizgowym wykonanym z Karbonado. Wyniki odniesiono do głównych parametrów nagniatania...
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Surface Treatment of Rubber Waste
PublicationThis chapter deals with the study of different approaches to improve the compatibility of waste rubber with polymeric matrixes of high density polyethylene (HDPE) by using surface treatments to increase adhesion. Different surface treatments such as etching with sulphuric and nitric acids, the use of a silane as a coupling agent and chlorination with trichloroisocyanuric acid (TCI) have been applied. The modification of waste rubber...
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Dynamics of surface floating objects
PublicationPrezentowana praca stanowi wstępne rozeznanie w dziedzinie badań dynamiki konstrukcji pływających z zastosowaniem teorii procesu dyfuzji. W pracy rozpatrywane są modele fizyczne jednostek wielokadłubowych oraz modele matematyczne. Spośród modeli jednostek wielokadłubowych wyróżnia się modele deterministyczne oraz modele stochastyczne.
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JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
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e-Journal of Surface Science and Nanotechnology
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SMT Surface Mount Technology Magazine
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International Journal of Surface Science and Engineering
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SURFACE TEXTURE ANALYSIS AFTER BALL END MILLING WITH VARIOUS SURFACE INCLINATION OF HARDENED STEEL
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Sulfate‐reducing bacteria‐assisted hydrogen‐induced stress cracking of 2205 duplex stainless steels
PublicationThe paper presents the results of a laboratory investigation of the microbiologically assisted hydrogen‐induced stress cracking (HISC) of 2,205 duplex stainless steel (DSS). The testing of susceptibility toward HISC was performed with two different methods. Precharged in sulfate‐reducing bacteria (SRB), inoculated medium samples were subjected to slow strain‐rate testing in artificial seawater. In situ constant load tests were...
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Microwave-Reactor-Based Preparation of Red Iron Oxide Pigment from Waste Iron Sulfate
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Integration of the sulfate reduction and anammox processes for enhancing sustainable nitrogen removal in granular sludge reactors
PublicationThe Anammox and Sulfate Reduction Ammonium Oxidation processes were compared in two granular sequencing batch reactors operated for 160 days under anammox conditions. It was hypothesized that increasing the concentration of SO42− may positively influence the rate of N removal under anaerobic conditions and it was tested whether SO42− reduction and anammox occur independently or are related to each other. The cooperation of N-S...
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The AFM topographic measurements of the surface heterogeneity of iron hexacyanoferrate on a steel surface
Open Research DataMeasurements in semi-contact mode. NTEGRA Prima (NT-MDT) device. NSG 01 probe.
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On the influence of a surface roughness on propagation of anti-plane short-length localized waves in a medium with surface coating
PublicationWe discuss the propagation of localized surface waves in the framework of the linear Gurtin–Murdoch surface elasticity and taking into account a roughness of a free boundary. We derive a boundary-value problem for anti-plane motions with curvilinear boundary and surface stresses. Using the asymptotic technique developed earlier, we obtain the form of a localized wave and analyze its amplitude evolution. As the main result we present...
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On-line measurement of wood surface smoothness
PublicationThe latest progress in the field of optics and microelectronics resulted in development of new generation vision systems capable of scanning surface topography with very high sampling frequencies. The blue color of illuminating light as well as novel systems for controlling ultra-thin laser line thickness allows measurement of the porous surface of wood with a triangulation method. Three alternative sensors were tested here in...
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Type of surface and tire rolling resistance
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Surface modifications of ti and its alloys
PublicationThis article reviews the various surface modification techniques pertaining to titanium and titanium alloys including physical treatment, mechanical treatment, and chemical and electrochemical treatment. The proper surface modification expands the use of titanium and its alloys in the biomedical field for long-term implants retaining the excellent properties of substrate material and improving the specific surface properties required...
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Surface shape reverse engineering with nurbs
PublicationW artykule zaprezentowano algorytm, który interpoluje prostokątną tablice punktów w przestrzeni trójwymiarowej przy pomocy powierzchni NURBS. Algorytm oblicza parametry powierzchni NURBS tak, aby jak najwierniej oddać kształt opisany przez punkty. Do interpolacji punktów wybrano powierzchnię NURBS, jako najbardziej uniwersalny i najczęściej używany w programach CAD rodzaj powierzchni. Interpolowane punkty mogą pochodzić zarówno...
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Measurement of surface flatness after lapping
PublicationPrzedstawiono sposób pomiaru płaskości powierzchni w docieraniu z wykorzystaniem metody sztucznych baz Vickersa. W analizie wykorzystano skomputeryzowane stanowisko do badań mikroskopowych, wyposażone w mikroskop stereoskopowy, kamerę CCD oraz program MultiScan.
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Surface Structure of Components Created by Stereolitography
PublicationStereolithography is an additive rapid prototyping method. This method is based on the principle of solidifying a liquid photopolymer (resin) by laser radiation. Models obtained with this method are characterized by a specific surface structure called “stairstep effect”. It causes that, the surface should be processed by additional finishing (postprocessing). To minimize the additional machining process, the model should be set...
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Occurrence of Surface Active Agents in the Environment
PublicationDue to the specific structure of surfactants molecules they are applied in different areas of human activity (industry, household). After using and discharging from wastewater treatment plants as effluent stream, surface active agents (SAAs) are emitted to various elements of the environment (atmosphere, waters, and solid phases), where they can undergo numerous physic-chemical processes (e.g., sorption, degradation) and freely...
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Excitons dissociation on pentacene-metal surface
PublicationBadano proces iniekcji nośników ładunku przez ekscytony z elektrod ITO i Mg do warstwy pentacenu. Stwierdzono, że energia ekscytonów tripletowych nie zawsze wystarcza do pokonania bariery potencjału powstającej na złączu elektroda - pentacen.
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A study of the influence of synthesis parameters on the physicochemical properties of iron pigments produced from waste iron sulfate
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Surface properties and visible light activity of W-TiO2 photocatalysts prepared by surface impregnation and sol-gel method
PublicationTiO2 modyfikowany wolframem otrzymano dwiema metodami: metodą zol-żel oraz metodą impregnacji powierzchniowej. Fotokatalizatory kalcynowano w temperaturze 400C. Jako matrycę TiO2 zastosowano ST-01 (Ishihara Sangyo, Japonia, 300m2/g). jako prekursory wolframu zastosowano tlenek wolframu oraz heksakarbonylek wolframu. Badania obejmowały wpływ ilości domieszki na aktywność fotokatalityczną. Charakterystyka otrzymanych fotokatalizatorów...
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Thermal dewetting as a method of surface modification of the gold thin films for surface plasmon resonance based sensor applications
PublicationHere, we report a quick and simple approach with low, optimized production costs to obtain surface plasmon resonance (SPR) based sensors fabricated through a time- and resource-effective method based on thermal dewetting of thin Au films. From the applicative point of view, the method of detection presented here should be easier to implement, since light transmission measurements seem to be much less challenging than light refractive...
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Dual functionality of amphiphilic 1-alkyl-3-methylimidazolium hydrogen sulfate ionic liquids: surfactants with catalytic function
PublicationA series of amphiphilic 1-alkyl-3-methylimidazolium hydrogen sulfate ionic liquids were synthesized. Acidic hydrogen sulfate ionic liquids with the alkyl chains C6–C14 are characterized by good surface properties. Their surface properties (adsorption and micellization parameters, degree of ionization of micelles, Krafft temperatures and thermodynamic parameters) were determined. Synthesized ionic liquids were applied as a co-catalyst...
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Visualization of the surface of the Nafion membrane
Open Research DataFuel cells use the chemical energy of hydrogen or other fuels to produce electricity. If the fuel is hydrogen, the only products are electricity, water and heat. Fuel cells are unique in the variety of their potential applications, they can use a wide variety of fuels. They are also highly scalable devices that can power both cars and mobile phones....
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Singular Surface Curves in the Resultant Thermodynamics of Shells
PublicationWithin six-parameter shells theory we discuss the governing equations of shells with material or non-material singular curves. By singular curve we mean a surface curve where are discontinuities in some surface fields. As an example we consider shells with junctions and shells undergoing stress-induced phase transitions.
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Mesoscopic impedance analysis of solid materials’ surface
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Concept of Neural Model of the Sea Bottom Surface
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The Effect of Dimple Distortions on Surface Topography Analysis
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Reduction of the end-effect in surface texture analysis
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Detection of measurement noise in surface topography analysis
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Problems of surface topography with oil pockets analysis
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Effect of surface modification on starch biopolymer wettability
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Effect of surface modification on starch/phospholipid wettability
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Multicomponent layers for aluminium alloys surface consolidation
PublicationThe main reason of the surface modification of the components such as pistons and cylinder blocks made of cast aluminium alloys is to obtain high hardness, wear and corrosion resistance of the working surface for larger lifetime of the motor-car and aircraft engines. In that aspect, the new conception of development - by hybrid method - of surface layers containing manganese, nitrogen, sulphur (Mn-N-S) and manganese, nitrogen,...
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Mesoscopic impedance analysis of solid materials surface
PublicationSeveral techniques have been developed in order to characterize electrical properties of surfaces in micrometer/nanometer scale. Obtaining of the spatial distribution of sample resistance, capacitance or potential requires separate measurements performed in different scanning modes. On the other hand, analysis of the frequency response of investigated system enables determination of several physical quantities in single measurement...
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Reactions on the surface of the implant under the influence of biofilm
PublicationThe contact of a biomaterial with the biological environment in in vitro and in vivo tests leads to the production of a particular ecosystem in which the active roles perform both, the material surface and the extracellular matrix protein forming a biofilm. Proteins affect cell and bacteria adhesion processes, biological activity of cells and activation of inflammatory response.The knowledge of the reaction mechanisms active on...
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Evolution of the surface species of the V2O5–WO3 catalysts
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Calcium sulphate scaling in membrane distillation process
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Surface studies of twinned of YBa2Cu3O7−δ crystals
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Total mercury in surface sediments of the Gdansk Basin
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New procedure of silica gel surface modification
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Comparison of volume-and surface-detention-time distributions
PublicationCzas zatrzymania ścieków w reaktorze jest bardzo ważnym parametrem projektowym. Jego wyznaczenie jest trudne i kłopotliwe. Z tego względu zbadano możliwość zastąpienia wartości tego parametru, wyznaczonej tylko dla swobodnej powierzchni ścieków. W wyniku stwierdzono dopuszczalność takiej zamiany.
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Shaping of the workpiece surface in single-disc lapping
PublicationPrzedstawiono korelację pomiędzy błędami kształtu docieraka i błędami kształtu przedmiotów obrabianych. Wyniki analityczne zostały sprawdzone doświadczalnie, co pozwoliło zbudować komputerowy model kształtowania powierzchni docieranych. Przedstawiono sposób wyznaczania intensywności kontaktu między przedmiotem docieranym, a docierakiem. Opracowano metodę wyznaczania położenia przedmiotu na docieraku.
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Some aspects surface cooling by impinging jet
PublicationW pracy przedstawiono wyniki badań wymiany ciepła, uskoku hydraulicznego i stabilności podczas napływu strugi na powierzchnię ciała stałego.
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Probabilistic analysis of slope with planar slip surface
PublicationPraca dotyczy probabilistycznej oceny stateczności zboczy. Omówiono sposób określania prawdopodobieństwa utraty stateczności przy wykorzystaniu metody momentów (ang. FOSM). Podejście takie zastosowano do analizy zsuwu konsekwentnego jednorodnego zbocza. Rozpatrzono wpływ zmienności statystycznej parametrów wytrzymałościowych na końcowe wyniki.
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Surface contamination after lapping by abrasive material
PublicationPrzedstawiono wyniki badań skażenia powierzchni żeliwa sferoidalnego mikroziarnami węglika krzemu po docieraniu. Określowo wpływ współczynnika upakowania mikroziaren w strefie docierania na intensywność skażenia powierzchni ścierniwem. W badaniach wykorzystano powierzchniową mikroanalizę rentgenowską.
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The Laser Surface Remelting of Austenitic Stainless Steel
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The evaluation of the surface quality after laser cutting
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