Gotowe bibliografie tematyczne / Double Diffuse and Chemically Reaction

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Gotowa bibliografia na temat „Double Diffuse and Chemically Reaction”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Double Diffuse and Chemically Reaction"

M.Umamaheswar, M.C.Raju, K. Varma S.V., and Sucharitha C. "MHD DOUBLE DIFFUSIVE AND CHEMICALLY REACTIVE FLUID FLOW THROUGH A ROTATING POROUS PLATE." International Journal of Research - Granthaalayah 5, no. 7 (2017): 363–73. https://doi.org/10.5281/zenodo.837828.

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In this paper MHD rotating double diffusive and chemically reactive fluid flow past a vertical porous plate with thermal radiation and heat absorption/generation is studied. The non-dimensional governing equations involved in the present analysis are solved by using finite difference technique. The effects of various physical parameters on velocity, temperature and concentration along with skin friction, the rate of heat transfer in the form of Nusselt number and the rate of mass transfer in the form of Sherwood number are studied through the graphs and tables.

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Loodts, V., H. Saghou, B. Knaepen, L. Rongy, and A. De Wit. "Differential Diffusivity Effects in Reactive Convective Dissolution." Fluids 3, no. 4 (2018): 83. http://dx.doi.org/10.3390/fluids3040083.

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When a solute A dissolves into a host fluid containing a reactant B, an A + B → C reaction can influence the convection developing because of unstable density gradients in the gravity field. When A increases density and all three chemical species A, B and C diffuse at the same rate, the reactive case can lead to two different types of density profiles, i.e., a monotonically decreasing one from the interface to the bulk and a non-monotonic profile with a minimum. We study numerically here the nonlinear reactive convective dissolution dynamics in the more general case where the three solutes can

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Saliba, Daniel, and Mazen Al-Ghoul. "Kinetics of intercalation of fluorescent probes in magnesium–aluminium layered double hydroxide within a multiscale reaction–diffusion framework." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2080 (2016): 20160138. http://dx.doi.org/10.1098/rsta.2016.0138.

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We report the synthesis of magnesium–aluminium layered double hydroxide (LDH) using a reaction–diffusion framework (RDF) that exploits the multiscale coupling of molecular diffusion with chemical reactions, nucleation and growth of crystals. In an RDF, the hydroxide anions are allowed to diffuse into an organic gel matrix containing the salt mixture needed for the precipitation of the LDH. The chemical structure and composition of the synthesized magnesium–aluminium LDHs are determined using powder X-ray diffraction (PXRD), thermo-gravimetric analysis, differential scanning calorimetry, solid-

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Li, Deyang, Lihui Fan, Min Qi, Yanming Shen, Dongbin Liu, and Shifeng Li. "Enhanced Visible-Light-Driven Photocatalytic Activity of ZnAl Layered Double Hydroxide by Incorporation of Co2+." Bulletin of Chemical Reaction Engineering & Catalysis 13, no. 3 (2018): 502. http://dx.doi.org/10.9767/bcrec.13.3.2168.502-511.

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Co-doped ZnAl layered double hydroxides (LDH) were papered by coprecipitation. The prepared samples were characterized by multiple techniques including X-ray Diffraction (XRD), Brunauer−Emmett−Teller (BET) surface area, Scanning Electronic Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS) and UV−Vis Diffuse-Reflectance Spectroscopy (UV−Vis DRS). The incorporation of Co2+ into the ZnAl LDH sheets as CrO6 octahedron forms a new energy level which contributes for the excitation of electrons under visible light. The doped Co2+ at a reasonable content

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Liu, Zixuan, Haoshen Huang, Zhengfei Chen, Haiyong He, Deyu Wang, and Zhoupeng Li. "Redox Mediators for Li2CO3 Decomposition." Inorganics 13, no. 6 (2025): 192. https://doi.org/10.3390/inorganics13060192.

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Lithium–air batteries (LABs) possess the highest energy density among all energy storage systems, and have drawn widespread interest in academia and industry. However, many arduous challenges are still to be conquered, one of them is Li2CO3, which is a ubiquitous product in LABs. It is inevitably produced but difficult to decompose; therefore, Li2CO3 is perceived as the “Achilles’ heel of LABs”. Among various approaches to addressing the Li2CO3 issue, developing Li2CO3-decomposing redox mediators (RMs) is one of the most convenient and versatile, because they can be electrochemically oxidized

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Khan, Muhammad Saqib, Jehanzeb Ali Shah, Nadia Riaz, et al. "Synthesis and Characterization of Fe-TiO2 Nanomaterial: Performance Evaluation for RB5 Decolorization and In Vitro Antibacterial Studies." Nanomaterials 11, no. 2 (2021): 436. http://dx.doi.org/10.3390/nano11020436.

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A photocatalytic system for decolorization of double azo reactive black 5 (RB5) dye and water disinfection of E. coli was developed. Sol gel method was employed for the synthesis of Fe-TiO2 photocatalysts and were characterized using thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS) and Brunauer–Emmett–Teller (BET) analysis. Results showed that photocatalytic efficiency was

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Tišler, Zdeněk, Pavla Vondrová, Kateřina Hrachovcová, et al. "Aldol Condensation of Cyclohexanone and Furfural in Fixed-Bed Reactor." Catalysts 9, no. 12 (2019): 1068. http://dx.doi.org/10.3390/catal9121068.

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Aldol condensation reaction is usually catalysed using homogeneous catalysts. However, the heterogeneous catalysis offers interesting advantages and the possibility of cleaner biofuels production. Nowadays, one of the most used kinds of heterogeneous catalysts are hydrotalcites, which belong to a group of layered double hydroxides. This paper describes the aldol condensation of cyclohexanone (CH) and furfural (F) using Mg/Al mixed oxides and rehydrated mixed oxides in order to compare the catalyst activity after calcination and rehydration, as well as the possibility of its regeneration. The c

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Zakhary, P. "³⁷Ar source on-demand production and deployment for low-energy nuclear recoil measurement in ReD liquid Argon TPC." Journal of Instrumentation 19, no. 06 (2024): C06003. http://dx.doi.org/10.1088/1748-0221/19/06/c06003.

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Abstract The search for light dark matter (< 10 GeV/c 2) has become increasingly important, since no conclusive evidence has been found in the higher dark matter (DM) mass region. In order to explore this light mass range, it is necessary to accurately model the response of the noble liquid time projection chamber (TPC) detectors, used in many experiments aimed at the direct measurement of DM, to low energy (< 1 keV) nuclear recoils (NRs). In this respect, 37Ar provides an ideal calibration source in the low-energy region due to its two low-energy peaks at 0.27 and 2.82 keV following ele

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Angkurarach, L., and P. Juijerm. "Effects of direct current field on powder-packed boriding process on martensitic stainless steel AISI 420." Archives of Metallurgy and Materials 57, no. 3 (2012): 799–804. http://dx.doi.org/10.2478/v10172-012-0087-3.

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The effects of direct current field on a powder-packed boriding process on a martensitic stainless steel AISI 420 have been investigated at a temperature of 900°C for about 2–6 hr. A powder-packed boriding process without direct current field (conventional powder-packed boriding process, PB) is a reference as compared to the powder-packed boriding process with applied current densities (PB-DC) of 60-170 mA/cm2. The microstructure and the presence of boride layers of PB and PB-DC were characterized using optical microscope and X-ray diffraction (XRD). The hardness values of the boride layer wer

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Amalanathan, Arputhasamy Joseph, Maciej Zdanowski, and Ramanujam Sarathi. "Streaming Electrification of Different Insulating Fluids in Power Transformers." Energies 15, no. 21 (2022): 8121. http://dx.doi.org/10.3390/en15218121.

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This paper presents a detailed review of the streaming electrification phenomena of different insulating fluids for power transformers. The comparison of different techniques used to assess the charging tendency of fluids is discussed depending on the flow type (planar or centrifugal), volume of oil, and interface material. The charge separation between the insulating fluid and metallic/pressboard interfaces is explained in terms of the electrical double layer formation involving a fixed layer and diffuse layer. Based on the experimental results, the streaming electrification is observed to be

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Rozprawy doktorskie na temat "Double Diffuse and Chemically Reaction"

Grahn, Alexander. "Strömungsinstabilitäten bei Stoffübergang und chemischer Reaktion an der ebenen Grenzfläche zwischen zwei nicht mischbaren Flüssigkeiten." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-28755.

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In verfahrenstechnischen Anlagen der Flüssig-Flüssig-Stoffübertragung kommt es an der Phasengrenze zwischen den nicht mischbaren Flüssigphasen häufig zur Ausbildung hydrodynamischer Instabilitäten. Sie sind mit komplexen Geschwindigkeitsfeldern in den Flüssigphasen, insbesondere in den grenzschichtnahen Regionen verbunden und führen zu einem starken Anstieg der pro Zeiteinheit übertragenen Stoffmenge. Die Lösung der Diffusionsgleichung reicht in diesem Fall zur Vorausberechnung des für Auslegungszwecke bedeutsamen Stoffdurchgangskoeffizienten nicht mehr aus. Chemische Reaktionen stellen Quelle

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Grahn, Alexander. "Strömungsinstabilitäten bei Stoffübergang und chemischer Reaktion an der ebenen Grenzfläche zwischen zwei nicht mischbaren Flüssigkeiten." Forschungszentrum Rossendorf, 2005. https://hzdr.qucosa.de/id/qucosa%3A21702.

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Części książek na temat "Double Diffuse and Chemically Reaction"

Kapoor, S. "Computational Study of Double Diffusive MHD Buoyancy Induced Free Convection in Porous Media with Chemical Reaction and Internal Heating." In Advanced Applications of Computational Mathematics. River Publishers, 2022. http://dx.doi.org/10.1201/9781003336983-9.

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Korablev, D., A. Bezdorozhev, V. Yartys, and J. Solonin. "Mg-based composites as effective materials for storage and generation of hydrogen for FC applications." In HYDROGEN BASED ENERGY STORAGE: STATUS AND RECENT DEVELOPMENTS. Institute for Problems in Materials Science, 2021. http://dx.doi.org/10.15407/materials2021.053.

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Today, hydrogen is considered as an ideal choice for storing and carrying energy produced by renewable power sources since it is renewable, eco-friendly and has a high energy density. However, due to the low hydrogen storage capacity, high cost and safety issues of the conventional storage methods, several challenges need to be resolved to effectively use hydrogen in mobile applications. Solid-state hydrogen storage in atomic form in hydrides is a promising method of storage for this purpose, particularly because a double amount of hydrogen can be produced via hydrolysis reaction of chemically

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Streszczenia konferencji na temat "Double Diffuse and Chemically Reaction"

Kleiber, Paul D., William C. Stwalley, and James L. Gole. "Possible chemically pumped alkali metal diffuse band lasers." In OSA Annual Meeting. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.wb10.

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Recent studies1,2indicate that the Na2violet diffuse bands are an attractive candidate for a short-wavelength chemically pumped laser. These excimer transitions have now been analyzed and unambiguously assigned using single-mode laser excitation; they arise from the superimposition of two distinct continuum (bound-free) emission bands—one singlet ( 2 1 Σ u + − X 1 Σ g + ) and one triplet (primarily 2 3 Π g − 1 3 Σ u + ).1In beam experiments, the reaction Na3+ X → (NA2)* + NaX(where X= Cl, Br, I) yields direct and efficient chemiluminescence, including emission in the singlet violet band, with

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Bai, Xi, Peiwei Sun, and Xinyu Wei. "Multi-Phase Flow Dynamic Analysis Under Large Leakage Sodium-Water Reaction Accident in a Sodium-Cooled Fast Reactor." In 2024 31st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/icone31-136210.

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Abstract The sodium-cooled fast reactor (SFR) is a promising generation-IV design with the nuclear system using liquid sodium as a coolant, high uranium utilization, and a closed fuel cycle. When the double-end-guillotine (DEG) heater tube broke in the steam generator of SFR, a high-pressure and high-temperature hydrogen bubble grew, with a large leakage sodium-water reaction (SWR) occurring. The reaction not only caused the pressure and temperature to increase promptly but also diffused the multi-phase flow (sodium-hydrogen-sodium-sodium hydroxide) into the steam generator and the secondary l

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Adeyemi, Bamikole, Prashant Jadhawar, and Lateef Akanji. "Surface Complexation Modelling of Potential Determining Ions Sorption on Oil/Brine and Brine/Rock Interfaces." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/207128-ms.

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Abstract Previous studies on smart water effects have suggested wettability alteration as the most significant mechanism for additional oil recovery during smart water injection. Though many other mechanisms have been observed and proposed in several other studies, much more attention is paid to the detachment of oil films from rock surfaces. It is, however, clear from prevailing understanding that the activities at oil/brine interfaces might require as much attention as given to the brine/rock interfaces. This paper presents diffuse double layer surface complexation modelling of the adsorptio

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Niibori, Yuichi, Hideo Usui, Taiji Chida, and Hitoshi Mimura. "A Double Porosity Model to Describe Both Permeability Change and Dissolution Processes." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30481.

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Cement is a practical material for constructing the geological disposal system of radioactive wastes. However, such materials alter groundwater up to 13 in pH around the repository, changing the permeability of natural barrier. So far, the authors have examined the relation of permeability change with dissolution process by flowing a high pH solution (NaOH, 0.1 mM) into a bed packed with amorphous silica particles. Here, the particle diameters were adjusted to a size fraction of 74 to 149 μm by sieving. Its specific surface area was estimated as 350 m2/g by the BET method using nitrogen gas. T

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Sprague, Isaac B., and Prashanta Dutta. "The Electrode-Electrolyte Interface in Acidic and Alkaline Fuel Cells." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63833.

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This numerical study presents the role of diffuse region of the electric double layer in both acidic and alkaline fuel cells. The numerical model is based on the Poisson-Nernst-Planck (PNP) and generalized-Frumkin-Butler-Volmer (gFBV) equations. The Laminar Flow Fuel Cell (LFFC) is used as the model fuel cell architecture to allow for the appropriate and equivalent comparison of acidic and alkaline cells. In particular, we focus on how each device behaves to changing reactant supply at the electrodes, including the overall cell performance and individual electrode polarizations. It is found th

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Briones, Alejandro M., and Suresh K. Aggarwal. "Ignition and Propagation Characteristics of Hydrogen-Enriched Methane Flames." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-28132.

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The effects of H2 enrichment on the ignition and propagation of laminar CH4-air flames in axisymmetric coflowing jets are numerically investigated. A comprehensive, time-dependent computational model, which employs a detailed description of chemistry and transport, is used to simulate the transient ignition and flame propagation phenomena. Because fuel-air mixtures can potentially be ignited due to the presence of either a high-temperature zone or a radical pool, we explore temperature-induced ignition and radical-pool-induced ignition. It is observed overall that radical-pool-induced ignition

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