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Wyniki wyszukiwania dla: CASSON FLUID
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Photocatalytic performance of alkali metal doped graphitic carbon nitrides and Pd-alkali metal doped graphitic carbon nitride composites
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Multiwalled carbon nanotube/sulfanyl porphyrazine hybrids deposited on glassy carbon electrode — effect of nitro peripheral groups on electrochemical properties
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Agnieszka Bartoszek-Pączkowska prof. dr hab. inż.
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Experimental investigation of domestic gas boiler fitted with ORC module
PublikacjaIn the paper the prototype of innovative domestic cogenerative ORC system, consisting of a conventional gas boiler and a small size axial vapour microturbines (in-house designed for ORC and the commercially available for Rankine cycle (RC)), evaporator and condenser were scrutinised. In the course of study the fluid working temperatures, rates of heat, electricity generation and efficiency of the whole system were obtained. The...
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The performance of H2O, R134a, SES36, ethanol, and HFE7100 two-phase closed thermosyphons for varying operating parameters and geometry
PublikacjaIn this study, the influences of different parameters at performance two-phase closed thermosiphon (TPCT) was presented. It has been confirmed that the working fluid, as well as operating parameters and fill ratio, are very important factors in the performance of TPCT. The article shows characteristics of gravitational tube geometr ies, as well as the technical characteristic of the most important system components, i.e., the evaporator/condenser....
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Improved electrocatalytic response toward hydrogen peroxide reduction of sulfanyl porphyrazine/multiwalled carbon nanotube hybrids deposited on glassy carbon electrodes
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Synergistic effect of carbon fibers and carbon nanotubes on improving thermal stability and flame retardancy of polypropylene: a combination of a physical network and chemical crosslinking
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Nanosized Carbon Black Combined with Ni2O3 as “Universal” Catalysts for Synergistically Catalyzing Carbonization of Polyolefin Wastes to Synthesize Carbon Nanotubes and Application for Supercapacitors
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Striking influence of chain structure of polyethylene on the formation of cup-stacked carbon nanotubes/carbon nanofibers under the combined catalysis of CuBr and NiO
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Carbon fractionation and stable carbon isotopic fingerprint of road dusts near coal power plant with emphases on coal-related source apportionment
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Mechanical and microstructural properties of cement pastes containing carbon nanotubes and carbon nanotube-silica core-shell structures, exposed to elevated temperature
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Activated Cu catalysts for alcohol CVD synthesized non-magnetic bamboo-like carbon nanotubes and branched bamboo-like carbon nanotubes
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Air-coupled ultrasonic C-scan technique in impact response testing of carbon fibre and hybrid: glass, carbon and Kevlar/epoxy composites.
PublikacjaTradycyjnie badania nieniszczące laminatów metodą ultradźwiękową przeprowadza się w ośrodku wodnym. W pracy podano wyniki badań rozmiaru strefy zniszczeń w laminatach epoksydowych zbrojonych włóknami szklanymi, węglowymi i aramidowymi metodą ultradźwiękową z powietrzem jako ośrodkiem sprzęgającym próbkę, nadajnik i odbiornik. Wyniki porównano z wynikami badań rentgenowskich z zastosowaniem penetranta -jodku cynku. Uzyskano dobrą...
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Bio and slide bearings: their lubrication by non-Newtonian fluids and application in non conventional systems. Vol.3. Tribology processes for cells human joints and micro-bearings
PublikacjaW niniejszej monografii przedstawiony został aktualny pogląd dotyczący procesu smarowania stawów człowieka od strony mechaniki, a szczególnie hydromechaniki i metod matematycznych. Wyznaczono pola prędkości przepływu lepkiej, odżywczej nie Newtonowskiej cieczy biologicznej, a także powstające siły tarcia w trakcie ruchu cieczy w warstwie granicznej wokoło współpracujących powierzchni. Dodatkowo rozpatrywano przepływy potencjalne...
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Multi Parameter Sliding Test Result Evaluation for the Selection of Material Pair for Wear Resistant Components of a Hydraulic Motor Dedicated for Use with Environmentally Friendly Working Fluids
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Multi Parameter Sliding Test Result Evaluation for The Selection of Material Pair for Wear Resistant Components of a Hydraulic motor Dedicated for Use With Environmentally Friendly Working Fluids
PublikacjaIn the paper the method and results are presented of the testing of tribological performance of a number of hard materials available commercially. The tests consisted in unidirectional sliding with liquid lubrication. The load and velocity regime chosen were similar to a standard four-ball lubricity test with constant velocity and load increasing over time. The regime was modified in such a way that over the initial part of the...
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Multi parameter sliding test result evaluation for the selection of material pair for wear resistant components of a hydraulic motor dedicated for use with environmentally friendly working fluids
PublikacjaW referacie przedstawiono zastosowanie metody badań tribologicznych pozwalającej na dokonywanie doboru najlepszych skojarzeń tribologicznych z wybranej populacji poprzez parametryczną ocenę wyników z wielu rodzajów testów tribologicznych wykonywanych na identycznych skojarzeniach materiał - smar - materiał.
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Experimental Investigation of the Thermal Performance of a Wickless Heat Pipe Operating with Different Fluids: Water, Ethanol, and SES36. Analysis of Influences of Instability Processes at Working Operation Parameters
PublikacjaIn this study, the influences of different parameters on performance of a wickless heat pipe have been presented. Experiments have been carried out for an input power range from 50 W to 300 W, constant cooling water mass flow rate of 0.01 kg/s, and constant temperature at the inlet to condenser of 10 C. Three working fluids have been tested: water, ethanol, and SES36 (1,1,1,3,3-Pentafluorobutane) with different filling ratios (0.32,...
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High-temperature heat pumps – new devices for heat recovery and production of technological steam
PublikacjaIn the paper, the original high temperature compressor based heat pump with a dry working fluid, i.e. the one in which the slope of saturated vapour line is positive, was presented. The objective of the paper is to investigate the possibility of preparation of technological steam with tempperature 120 C from the waste heat resource at temperature of 50 C. Single comppression cycles as well as cascade systems have been considered...
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Chlorination of Carbon Nanotubes Obtained on the Different Metal Catalysts
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Simultaneous purification and functionalization of carbon nanotubes using chlorination
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Desorption of chloroorganic compounds from a bed of activated carbon
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Corrosion resistance studies of carbon-encapsulated iron nanoparticles
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Carbon laminates with RE doped optical fibre sensors
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A nanostructured carbon-reinforced polyisobutylene-based thermoplastic elastomer
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Carbon-coated anatase: adsorption and decomposition of phenol in water
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A new route for preparation of TiO2-mounted activated carbon
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Hybridization of adsorptivity with photocatalytic activity—carbon-coated anatase
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Cobalt/Carbon Nanocomposite as Oxygen Evolution Reaction Electrocatalyst
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CVD generated mesoporous hollow carbon spheres as supercapacitors
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Synthesis of Multiwalled Carbon Nanotubes by Catalytic Combustion of Polypropylene
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Investigation of the microstructure on the nanoporous carbon based capacitive performance
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Grinding-induced functionalization of carbon-encapsulated iron nanoparticles
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Addition of azomethine ylides to carbon-encapsulated iron nanoparticles
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Carbon Based Electrode Materials and their Architectures for Capacitive Deionization
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Atomic substitution and carbon isotope effect in superconducting MgCNi3
PublikacjaW pracy analizowany jest wpływ domieszkowania zarówno pozycji niklu, jak i węgla w nadprzewodzącym związku międzymetalicznym MgCNi3. Dodatkowo dyskutowany jest węglowy nadprzewodzący efekt izotopowy.
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Aluminium Profile Reinforced with Carbon Fibre: Numerical Analysis
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A model of a tunable quantum dot in a semiconducting carbon nanotube
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Hybrid biobattery based on arylated carbon nanotubes and laccase
PublikacjaJednościenne nanorurki węglowe modyfikowano resztami antracenu i antrachinonu Otrzymany materiał posłużył do modyfikacji elektrody węglowej w celu jej zastosowania do redukcji tlenu w bioogniwie paliwowym. Nanorurki z aromatycznymi grupami zwiększyły powierzchnię elektrody oraz przyczyniły się do zwiększenia bezpośredniego przeniesienia elektronów. Grupy arylowe mogą wnikać do hydrofobowej kieszeni enzymu, w której znajduje się...
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Unusual interfacial phenomena at a surface of fullerite and carbon nanotubes
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Assessing pathways into a low carbon and climate responsible Gdansk
PublikacjaA basic question today is the sense of the use new ideas in shaping Polish cities- not as technologically advanced as others. The key is to understand good practices in designing and implementing new approaches. The comparative research Glasgow and Gdansk has been undertaken by Gdansk Development Agency in Jan 2014
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WEAR OF Si OR B DOPED AMORPHOUS CARBON COATINGS
PublikacjaThe paper describes a complex wear research on DLC (amorphous carbon) moped with boron (B) and silicone (Si). The tests were carried out in two different sliping systems: flat–on–flat (ring contact, unidirectional sliding) and ball–on–flat (reciprocating sliding). Water and medical saline solutions were used as lubricants. A comparative analysis of the results revealed differences in the initiation and progress of wear and the...
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VOLTAMMETRIC DETERMINATION OF DEOXYRIBONUCLEIC ACID PRESENCE ON A CARBON ELECTRODE
PublikacjaThis paper presents a voltammetry as a useful method to analyse DNA from different species. This electrochemical method is well know and used in different analyses. The influence of an area of working electrode and the capacity component, is shown at equals and the measurement. In voltammetry DNA measurement the capacity component is very important and must be taken into consideration. All mathematical analyses were verify at laboratory.
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Basic physiology of Pseudomonas aeruginosa contacted with carbon nanocomposites
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Iron filled carbon nanostructures from different precursors
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Comparative study on purity evaluation of singlewall carbon nanotubes
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Single-walled carbon nanotubes fractionation via electrophoresis
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Selective oxidation of metallic single-walled carbon nanotubes
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MOF-5 derived carbon as material for CO2 absorption
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Boron doped carbon nanotubes via ceramic catalysts
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