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- Publikacje 2364 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: WINTER TEMPERATURE RECONSTRUCTION
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Room temperature ionic liquid-based dispersive liquid–liquid microextraction of uranium in water samples before spectrophotometric determination
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High-temperature Corrosion of ~ 30 Pct Porous FeCr Stainless Steels in Air: Long-Term Evaluation Up to Breakaway
PublikacjaIn this work, a long-term (up to 6000 hours) corrosion evaluation of three porous (~ 30 pct of initial porosity) ferritic iron-chromium alloys with different Cr contents (20, 22, and 27 wt pct of Cr) was carried out at 600 C, 700 C, 800 C, and 900 C in air. Mass gain measurements and SEM analyses revealed that at temperatures above 600 C, all alloys exhibit breakaway corrosion, whereas at 600 C, none of the alloys were heavily...
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Data normalisation for Lamb wave–based damage detection using cointegration: A case study with single- and multiple-temperature trends
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Spectral characteristic of high-dose high-temperature emission from LiF:Mg,Cu,P (MCP-N) TL detectors
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In-situ FTIR study of reaction mechanism and chemical kinetics of a Xundian lignite during non-isothermal low temperature pyrolysis
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Variable-temperature X-ray diffraction study of structural parameters of NH---S hydrogen bonds in triethylammonium and pyridinium silanethiolates
PublikacjaHydrogen bonds in triethylammonium and pyridinium silanethiolate salts have been characterized by X-ray, FT–IR and NMR spectroscopies. DFT calculations reveal strongly asymmetric double-well minima at the potential energy curves of the studied compounds
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High Temperature Drying Process of Beech Wood (Fagus sylvatica L.) with Different Zones of Sapwood and Red False Heartwood
PublikacjaThis study examined the changes in the properties of beech wood (Fagus sylvatica L.) after intense drying. Beech wood with false red heartwood was selected as the test specimen. The test samples had dimensions of 50 mm thickness, 180 mm width, and 350 mm length. The specimens were divided into two groups, false red heartwood and sapwood. These specimens were selected with different angles of the growth rings (radial and tangential)....
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EFFECT OF WATER ACTIVITY AND TEMPERATURE ON GROWTH AND LIPOLYTIC ACTIVITY OF PENICILLIUM CHRYSOGENUM STRAINS IN LIQUID CULTURE MEDIA WITH PLANT OILS
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Low temperature deposition of dense MnCo 2 O 4 protective coatings for steel interconnects of solid oxide cells
PublikacjaIn this work manganese cobalt spinel (MnCo2O4) coatings were deposited on steel substrates by spray pyrolysis at 390 °C. This is at much lower temperatures than previously reported (typically in excess of 900 °C). It was possible to produce coatings with well controlled thickness (2-5-10 μm). The as-deposited coatings were evaluated for their microstructural changes and electrical conductivity up to 800 °C. Results confirm the...
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Influence of Storage Time and Temperature on the Toxicity, Endocrine Potential, and Migration of Epoxy Resin Precursors in Extracts of Food Packaging Materials
PublikacjaThe aim of the present study was to establish a standard methodology for the extraction of epoxy resin precursors from several types of food packages (cans, multi-layered composite material, and cups) with selected simulation media (distilled water, 5% ethanol, 3% dimethyl sulfoxide, 5% acetic acid, artificial saliva) at different extraction times and temperatures (factors). Biological analyses were conducted to determine the acute...
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Influence of sintering temperature of porous SrTi0.30Fe0.70O3-d oxygen electrode on electrochemical impedance spectroscopy spectra measured at 800 °C
Dane BadawczeThis dataset contains results electrochemica impedance spectroscopy (EIS) of symmetrical cells with porous SrTi0.30Fe0.70O3-d oxygen electrodes sintered at different temperatures (800 °C; 900 °C and 1000 °C). Measure temperature was 800 °C (syntetic air, 40 ml min-1). Results converted to electrode surfaces area and dived by two electrodes.
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Influence of sintering temperature of porous SrTi0.50Fe0.50O3-d oxygen electrode on electrochemical impedance spectroscopy spectra measured at 800 °C
Dane BadawczeThis dataset contains results electrochemica impedance spectroscopy (EIS) of symmetrical cells with porous SrTi0.50Fe0.50O3-d oxygen electrodes sintered at different temperatures (800 °C; 900 °C and 1000 °C). Measure temperature was 800 °C (syntetic air, 40 ml min-1). Results converted to electrode surfaces area and dived by two electrodes.
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Influence of sintering temperature of porous SrTi0.65Fe0.35O3-d oxygen electrode on electrochemical impedance spectroscopy spectra measured at 800 °C
Dane BadawczeThis dataset contains results electrochemica impedance spectroscopy (EIS) of symmetrical cells with porous SrTi0.65Fe0.35O3-d oxygen electrodes sintered at different temperatures (800 °C; 900 °C and 1000 °C). Measure temperature was 800 °C (syntetic air, 40 ml min-1). Results converted to electrode surfaces area and dived by two electrodes.
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Nonlinear impedance of annealed and next fully crystallized 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of annealed and next fully crystallized 50Bi2VO5.5-50SrB4O7 glass was measured by impedance spectroscopy method.
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Nonlinear impedance of 5(2Bi2O3-V2O5)-95SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 5(2Bi2O3-V2O5)-95SrB4O7 glass was measured by impedance spectroscopy method.
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Determination of changes in viscosity of high-fructose syrup stability of pectin hydrogels depending on the temperature (25-96 Celsius degrees).
Dane BadawczeThe rheological characteristics of the high-fructose syrup modified stability of pectin (added in a concentration 2% m/m) were made on the basis of the viscosity assessment using a Brookfield viscometer with an LV SC4 - 25 spindle and a shear rate of 0,22 s-1 in the temperature range 25-96 ° C. The data allowed selection of optimal conditions for the...
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The scanning spreading resistance microscopy (SSRM) studies of heavy boron-doped diamond oxidation under high-temperature
Dane BadawczeThe dataset contains the results of scanning spreading resistance microscopy (SSRM) of heavy boron-doped diamond (BDD) electrodes subjected to high-temperature oxidation in a furnace at 600 Celsius. The micrographs reveal the local change of electric properties at certainly crystallographic orientations of BDD grains and at the grain boundaries due...
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Nonlinear impedance of 40Bi2VO5.5-60SrB4O7 annealed glass at 593 K measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrical properties of 40Bi2VO5.5-60SrB4O7 glass annealed at 593 K was measured by impedance spectroscopy method.
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Pumps, Turbines and Small Hydropower, LEC/LAB, ET, sem.7 winter 2022/23 (PG_00042108)
Kursy OnlineThe aim of the course is to identify and demonstrate knowledge of the major concepts, theoretical perspectives, and historical trends in small hydropower. This course examines the principles of sustainability and renewable energy conversion with emphasis on hydro energy resources. Concentration is placed on the relationships between the renewable resources, conversion technology and economic feasibility along with consideration...
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Pumps, Turbines and Small Hydropower, LEC/LAB, ET, sem.7 winter 2023/24 (PG_00042108)
Kursy OnlineThe aim of the course is to identify and demonstrate knowledge of the major concepts, theoretical perspectives, and historical trends in small hydropower. This course examines the principles of sustainability and renewable energy conversion with emphasis on hydro energy resources. Concentration is placed on the relationships between the renewable resources, conversion technology and economic feasibility along with consideration...
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Pumps, turbines and small hydropower, ET, LEC/LAB, sem.07 winter 24/25, (PG_00042108)
Kursy OnlineThe aim of the course is to provide students with knowledge of basic information about hydrotechnical structures used for damming water used for small hydropower, discussing the machine equipment of a small hydropower plant and its cooperation with the power grid, providing basic concepts and principles of operation of hydraulic turbines and pumps and their selection, and the environmental impact of the energetic use of the river.
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Linear impedance of 40Na2O-20CaO-40P2O5 glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrical properties of 40Na2O-20CaO-40P2O5 glass was measured by impedance spectroscopy method.
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Excess volumes of mixing in (N,N-Dimethylacetamide+methanol+water) and (N,N-Dimethylacetamide+ethanol+water) at the temperature 313.15 K
PublikacjaW pracy podane są rezultaty precyzyjnych pomiarów namiarowych objętości molowych dla dwóch układów trójskładnikowych zawierających wodę, amid alifatyczny (N,N-dimetyloacetamid) oraz alkohol: metanol lub etanol. Dla wszystkich badanych układów obserwowane są duże i ujemne wartości nadmiarowych objętości mieszania, wskazujące na obecność silnych oddziaływań międzycząsteczkowych.
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Activation of the Normal Human Skin Cells by a Portable Dielectric Barrier Discharge-Based Reaction-Discharge System of a Defined Gas Temperature
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The cytoprotective role of antioxidants in mammalian cells under rapidly varying temperature, pressure and UV conditions during stratospheric balloon campaign
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Ergodicity and model quality in template-restrained canonical and temperature/Hamiltonian replica exchange coarse-grained molecular dynamics simulations of proteins
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Oxygen Aspects in the High-Pressure and High-Temperature Sintering of Semiconductor Kesterite Cu2ZnSnS4 Nanopowders Prepared by a Mechanochemically-Assisted Synthesis Method
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Study of the Active Carbon from Used Coffee Grounds as the Active Material for a High-Temperature Stable Supercapacitor with Ionic-Liquid Electrolyte
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Degradacja stali 9CR-1Mo pod wpływem podwyższonej temperatury. Degradation of 9Cr-1Mo steel under the influence of elevated temperature
PublikacjaBadano charakterystyczne cechy degradacji mikrostruktury i właściwości mechanicznych stali 9Cr-1Mo gat. P9 ASTM SA-335 po eksploatacji w piecu rafineryjnym w temperaturze 390-500 stopni C. Wykazano, że po 30 000 godzin wydłużenie obniżyło się o około 30%. Przyczyną spadku wydłużenia były zmiany mikrostruktury związane z umocnieniem osnowy metalicznej przez chrom oraz wynikające z kruchości odpuszczania stali. Większy spadek wydłużenia...
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Nonlinear impedance of as-quenched glass 40Bi2VO5.5-60SrB4O7 after full crystallization was measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of as-quenched glass 40Bi2VO5.5-60SrB4O7 afetr full crystallization was measured by impedance spectroscopy method.
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Nonlinear impedance of 50Bi2VO5.5-50SrB4O7 fully crystallized glass at 813 K measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 50Bi2VO5.5-50SrB4O7 fully crystallized glass was measured by impedance spectroscopy method.
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Nonlinear impedance of 50Bi2VO5.5-50SrB4O7 partially crystallized glass at 613 K measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 50Bi2VO5.5-50SrB4O7 partially crystallized glass was measured by impedance spectroscopy method.
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Results of implementation of Feed Forward Neural Networks for modeling of heat transfer coefficient during flow condensation for low and high values of saturation temperature
Dane BadawczeThis database present results of implementation of Feed Forward Neural Networks for modeling of heat transfer coefficient during flow condensation for low and high values of saturation temperature. Databse contain one table and 7 figures.
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Assessment of Tensile Strength Reserve of Asphalt Mixtures at Low Temperatures
PublikacjaDuring winter conditions, low-temperature cracks develop at the surface of the asphalt pavement when tensile thermal stress induced in the asphalt layer during cooling equals and exceeds the tensile strength of the material. The paper presents the results of tensile strength reserve assessment of asphalt mixtures with neat and SBS-polymer modified bitumen application. The tensile strength reservewas calculated as difference between...
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Performance evaluation and model-based optimization of the mainstream deammonification in an integrated fixed-film activated sludge reactor
PublikacjaThis study aimed to model and optimize mainstream deammonification in an integrated fixed-film activated sludge (IFAS) pilot plant under natural seasonal temperature variations. The effect of gradually decreasing temperature on the performance was evaluated during a winter season and a transition period to summer conditions, and the correlation of the performance parameters was investigated using principal component analysis (PCA)....
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Research on the phenomena of warming up and free cooling down the car engine
PublikacjaThe average cold start temperature in Europe is 9 degrees C. However, not the average is the most important for the composition of exhaust gases and associated air pollution. The most onerous for the environment are the winter starts when automotive emissions of harmful gases add up in cities with those of home heating systems. The paper presents preliminary studies of warming up and cooling down processes in various environmental conditions....
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Distribution of Relaxation Times analysis results of impedance of porous Sr0.86Ti0.65Fe0.35O3 oxygen electrode (sintered at 1000 °C) as a function of measuring temperature at 0.1% pO2
Dane BadawczeThis dataset contains results of Distribution of Relaxation Times analysis (DRT) of impedance of porous Sr0.86Ti0.65Fe0.35O3 oxygen electrode as a function of measuring temperature at 0.1% pO2. Electrode was sintered at 1000 °C and measured at different temperatures (800 °C, 750 °C, 700 °C).
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Pumps, Turbines and Small Hydropower, LEC/LAB, DaPE, sem.5 winter 2022/23 (M:320403W0)
Kursy OnlineThe aim of the course is to identify and demonstrate knowledge of the major concepts, theoretical perspectives, and historical trends in small hydropower. This course examines the principles of sustainability and renewable energy conversion with emphasis on hydro energy resources. Concentration is placed on the relationships between the renewable resources, conversion technology and economic feasibility along with consideration...
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Pumps, turbines and small hydropower, DaPE, LEC/LAB, sem.05 winter 24/25, (M:320403W0)
Kursy OnlineThe aim of the course is to provide students with knowledge of basic information about hydrotechnical structures used for damming water used for small hydropower, discussing the machine equipment of a small hydropower plant and its cooperation with the power grid, providing basic concepts and principles of operation of hydraulic turbines and pumps and their selection, and the environmental impact of the energetic use of the river.
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Pumps, Turbines and Small Hydropower, LEC/LAB, DaPE, sem.5 winter 2023/24 (M:320403W0)
Kursy OnlineThe aim of the course is to identify and demonstrate knowledge of the major concepts, theoretical perspectives, and historical trends in small hydropower. This course examines the principles of sustainability and renewable energy conversion with emphasis on hydro energy resources. Concentration is placed on the relationships between the renewable resources, conversion technology and economic feasibility along with consideration...
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Nonlinear impedance as a function of A.C. voltage for fully crystallized 35Bi2VO5.5-65SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties as a function of A.C. voltage for fully crystallized 35Bi2VO5.5-65SrB4O7 glass was measured by impedance spectroscopy method.
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Nonlinear impedance of 40Bi2VO5.5-60SrB4O7 annealed glass at 473 K for 3 h measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrical properties of 40Bi2VO5.5-60SrB4O7 glass annealed at 473 K for 3h was measured by impedance spectroscopy method.
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Nonlinear impedance as a function of A.C. voltage for fully crystallized 45Bi2VO5.5-55SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties as a function of A.C. voltage for fully crystallized 45Bi2VO5.5-55SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of 25Na2O–20CaO–5P2O5–50SiO2 glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrical properties of 25Na2O–20CaO–5P2O5–50SiO2 glass was measured by impedance spectroscopy method.
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Nonlinear impedance as a function of A.C. voltage for annealed and next fully crystallized 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties as a function of A.C. voltage for annealed and next fully crystallized 50Bi2VO5.5-50SrB4O7 glass was measured by impedance spectroscopy method.
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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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Volumetric and acoustic properties of D-mannitol in aqueous sodium or magnesium(II) chloride solutions over temperature range of 293.15 to 313.15 K
PublikacjaWykorzystując zmierzone wartości gęstości oraz prędkości rozchodzenia się dźwięku wyznaczono pozorne objętości molowe i pozorne ściśliwości molowe D- mannitolu w (1, 5 i 10) % wodnych roztworach chlorku sodu oraz chlorku magnezu(II). Obliczono graniczne wartości pozornych wielkości molowych, odpowiednie funkcje przeniesienia oraz współczynniki rozszerzalności. Otrzymane wielkości powiązano z oddziaływaniami D-mannitol -sól (NaCl...
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Temperature and pressure dependence of the luminescence of Eu2+-doped fluoride crystals BaxSr1−xF2(x= 0, 0.3, 0.5 and 1): experiment and model
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The effect of pressure on luminescence properties of Cr3+ ions in LiSc(WO4)2 crystals—Part II: Pressure- and temperature-dependent luminescence kinetics
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Hydrogen Production Mechanism in Low-Temperature Methanol Decomposition Catalyzed by Ni3Sn4 Intermetallic Compound: A Combined Operando and Density Functional Theory Investigation
PublikacjaHydrogen production from methanol decomposition to syngas (H2 + CO) is a promising alternative route for clean energy transition. One major challenge is related to the quest for stable, cost-effective, and selective catalysts operating below 400 °C. We illustrate an investigation of the surface reactivity of a Ni3Sn4 catalyst working at 250 °C, by combining density functional theory, operando X-ray absorption spectroscopy, and high-resolution...