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Search results for: FLOW EFFICIENCY
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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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Forecast of basic fuel prices in imports to Poland (constant prices in USD in 2007)
Open Research DataThis dataset presents price growth forecasts for conventional energy sources. It should be noted that the Ministry of Economy forecasts a more than two-fold increase in oil prices (although these forecasts may be greatly underestimated) over 23 years, an almost two-fold increase in natural gas prices and a 40% increase in coal prices.
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DES - polarity, pH and antioxidant potential
Open Research DataThis physicochemical properties of selected deep eutectic solvents (DES) were tested. Polarity is important for extraction efficiency. The values of pH can importantly affect growing of bacteria and yeasts strains. Total phenolic content, DPPH and FRAP methods were used for determination of antioxidant potential of the extract produced with DES.
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Gross final energy demand from RES, broken down by type of energy
Open Research DataAccording to the forecasts of the Ministry of Economy, taking into account the macroeconomic situation and legal conditions (including the EU Program "20x20x20", the Act on Renewable Energy Sources and the Energy Efficiency Act), power plants producing energy based on renewable energy will gain in importance in the coming years. energy sources.
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Indicators describing the effectiveness of tax systems of selected OECD countries
Open Research DataThe following research data include indicators describing the effectiveness of the tax administration activity in Poland compared to selected countries. In economic understanding efficiency is measured by the calculation of the expenditure of funds spent on its operation and performance of statutory functions. In this respect, the basic indicator is...
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The luminescence study ofNaK2Li[Li3SiO4]4:Eu coumpounds.
Open Research DataNarrowband green phosphors with high quantum efficiency are required for backlighting white light-emitting diode (WLED) devices. Materials from the A[Li3SiO4]4:Eu2+ family have recently been proposed as having superior properties to industry-standard β-SiAlON green phosphors. Here, we show that a cheap, easily synthesized host NaK2Li[Li3SiO4]4 (NKLLSO)...
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The effect of different accelerators on the reclaiming efficiency of ground tire rubber
Open Research DataThe presented results concern the influence of different accelerators on the reclaiming efficiency of ground tire rubber (GTR). All the specimens were prepared using a two-roll mill and each sample was prepared in the same manner. Samples were submitted to curing analysis via Rheometer Monsanto 100S after 24 hours of aging. The attached data are related...
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Technology and democracy: the who and how in decision-making. The cases of Estonia and Catalonia. METADATA
Open Research DataThe analysis of the Estonian data comes mainly from studies conducted to analyse the cost-efficiency of the Estonian online voting model (Krimmer; Duenas-Cid; Krivonosova, 2021), as well as from the contagion effect that ensued in other parts of the Estonian administration after the voting system was developed (Krimmer; Duenas-Cid,2019). In both cases,...
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Technology and democracy: the who and how in decision-making. The cases of Estonia and Catalonia. METADATA 1
Open Research DataThe analysis of the Estonian data comes mainly from studies conducted to analyse the cost-efficiency of the Estonian online voting model (Krimmer; Duenas-Cid; Krivonosova, 2021), as well as from the contagion effect that ensued in other parts of the Estonian administration after the voting system was developed (Krimmer; Duenas-Cid,2019). In both cases,...
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Electrochemical measurements of borophene functionalized with nickel(II) oxide (NiO)
Open Research DataThis dataset contains linear sweep voltammetry (LSV) and chronopotentiometry (CP) technique results for borophene functionalized with nickel(II) oxide (NiO) and reference samples: ruthenium(IV) oxide (RuO2), nickel(II) oxide (NiO) and pristine borophene. Linear sweep voltammetry (LSV) results show the oxygen evolution reaction permormance of the obtained...
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X-ray Photoelectron Spectroscopy studies of citric acid adsorption on aluminium alloy 5754 in alkaline media
Open Research DataThis dataset contains the results of high-resolution XPS obtained during evaluation of high corrosion inhibition efficiency of citric acid towards aluminium alloy 5754 in bicarbonate buffer pH=11. The exposition duration of samples to electrolytic environment was 100 min. Each sample was exposed at different citric acid concentration ranging from 0...
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Wind speed, wind direction and solar radiation datasets; wind and solar energy resources analysis
Open Research DataDataset contain the results of wind speed, wind direction and solar radiation for wind and solar energy resources analysis performed in years 2008 and 2009. Application for efficiency and profitability of solar and wind power plants anaylsis and for energy generation forecasting algorithms design and anaysis. Datasets used in doctoral dissertations,...
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The luminescence study of Sr0.98Li2.5 + zAl1.5 – zO3 + 2zN1 – 2z:0.02Eu coumpounds.
Open Research DataEu2+-doped UCr4C4-type oxynitride phosphors are emerging innovative materials to replace oxide and nitride phosphors for high-end light-emitting devices. A series of Sr0.98Li2.5 + zAl1.5 – zO3 + 2zN1 – 2z:0.02Eu phosphors were synthesized by collaborators from the National Taiwan University by precursor engineering, and these products showed an unexpected...
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Chromium Cluster Luminescence: Advancing Near‐Infrared Light‐Emitting Diode Design for Next‐Generation Broadband Compact Light Sources
Open Research DataIn modern technology devices, an energy-saving miniature near-infrared (NIR) light source plays a critical role in non-destructive, non-invasive sensing applications and further advancement of technology. This dataset reports the broadband NIR luminescence of Cr3+ clusters for designing phosphor-converted NIR light-emitting diodes as an alternative...
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Simulation of perovskite-based CuI/CH3NH3PbI3/TiO2 solar cell performance
Open Research DataThe presented data set is part of the theoretical research on novel thin-layer lead-halide perovskite solar cells with different inorganic transparent conductive oxides used as charge transport layers. In this study CuI/CH3NH3PbI3/TiO2 model structure (Model 1) was investigated by the use of the SCAPS-1D simulation method (https://scaps.elis.ugent.be/).
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Simulation of perovskite-based CuI/CH3NH3PbI3/SnO2 solar cell performance
Open Research DataThe presented data set is part of the theoretical research on novel thin-layer lead-halide perovskite solar cells with different inorganic transparent conductive oxides used as charge transport layers. In this study CuI/CH3NH3PbI3/SnO2 model structure (Model 2) was investigated by the use of the SCAPS-1D simulation method (https://scaps.elis.ugent.be/).
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Simulation of perovskite-based CuI/CH3NH3PbI3/ZnO solar cell performance
Open Research DataThe presented data set is part of the theoretical research on novel thin-layer lead-halide perovskite solar cells with different inorganic transparent conductive oxides used as charge transport layers. In this study CuI/CH3NH3PbI3/ZnO model structure (Model 3) was investigated by the use of the SCAPS-1D simulation method (https://scaps.elis.ugent.be/).
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X-ray Photoelectron Spectroscopy studies of various carboxylic acids adsorption on aluminium alloys in alkaline media
Open Research DataThis dataset contains the results of high-resolution XPS studies obtained during evaluation of high corrosion inhibition efficiency of various carboxylic acids towards aluminium alloy 5754 in bicarbonate buffer pH=11.
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The luminescence study of Ga1.98–xAlxO3:0.02Cr3+ coumpounds.
Open Research DataA chemical and mechanical pressure-induced photoluminescence tuning method was developed through structural evolution and hydrostatic pressure involving phase transition. A series of Ga1.98−xAlxO3:0.02Cr3+ phosphors were synthesized by collaborators from National Taiwan University. Structural evolution reveals a crystal phase change with the incorporation...
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The luminescence study of Ga2–x(Al0.68In0.32)xO3:Cr3+ coumpounds.
Open Research DataNear-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) are a highly efficient perspective NIR light source, with application hindered by a narrow emission band. In this work, we broaden the emission of a new series of NIR phosphors by controlling crystal structure disorder through cation cosubstitution. By substituting Ga3+ with (Al0.68In0.32)3+,...