Academic literature on the topic 'Double diffusion'

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Journal articles on the topic "Double diffusion"

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Khair, Abul, Nilay Kumar Dey, Mohammad Harun-Ur-Rashid, Mohammad Abdul Alim, Newas Mohammad Bahadur, Sultan Mahamud, and Syekat Ahmed. "Diffusimetry Renounces Graham’s Law, Achieves Diffusive Convection, Concentration Gradient Induced Diffusion, Heat and Mass Transfer." Defect and Diffusion Forum 407 (March 2021): 173–84. http://dx.doi.org/10.4028/www.scientific.net/ddf.407.173.

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Absolute diffusion rates of KMnO4 in vertical and flattened diffusimeters show the concentration gradient force as being stronger than the gravitational force. Hot water molecules move downward on self-diffusion against buoyancy. Diffusive convection (DC) in warm water and double-diffusive convection (DDC) in warm, saline water take place inside the diffusimeter with DDC transferring more heat than DC. In the diffusing medium the original reagents change or retain their compositions to give the diffusate molecules to diffuse. In water, the change is mostly hydration. The syngener BaCl2.2H2O separately with congeners 3CdSO4.8H2O, ZnSO4.7H2O, and ZnSO4.H2O presents two distinct pairs of overlapping concentration versus rate curves, first for having very close MWs of BaCl2 and CdSO4 and second for having ZnSO4.H2O as the common congener for both the zinc sulfates. Chlorides of Li, Na, and K diffusing at hindered rates in glucose solution show the least rate for LiCl inevitably on grounds of low mass and high Li+ hydration radius. Diffusion blocking occurs at higher glucose concentration. Diffusion of 0.6M AgNO3-0.6M NH4Cl standardizes this diffusimeter. Mass transfer of HCl, H2SO4, and H2C2O4 show oxalic acid diffusing as hydrate and 88 percentage transfer of sulfuric acid in 5 minutes. The Superdiffusive Anti Graham’s Law, Vd , is further consolidated by Ca (NO3)2-M2CO3(M = Na, K, NH4+) and Ca (NO3)2-Na2HPO4 diffusions. Odd and even diffusions are illustrated by AgNO3-NH4Cl and AgNO3-BaCl2 diffusions.
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Cox, Stephen M., Sidney Leibovich, Irene M. Moroz, and Amit Tandon. "Nonlinear dynamics in Langmuir circulations with O(2) symmetry." Journal of Fluid Mechanics 241 (August 1992): 669–704. http://dx.doi.org/10.1017/s0022112092002192.

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A direct comparison is made between the dynamics obtained by weakly nonlinear theory and full numerical simulations for Langmuir circulations in a density-stratified layer having finite depth and infinite horizontal extent. In one limit, the mathematical formulation employed is analogous to that of double-diffusion phenonema with the flux of one diffusing quantity fixed at the boundaries of the layer. These problems have multiple bifurcation points, but their amplitude equations have no intrinsic (nonlinear) degeneracies, in contrast to ‘standard’ double-diffusion problems. The symmetry of the physical problem implies invariance with respect to translations and reflections in the horizontal direction normal to the applied wind stress (so-called O(2) symmetry). A multiple bifurcation at a double-zero point serves as an organizing centre for dynamics over a wide range of parameter values. This double zero, or Takens–Bogdanov, bifurcation leads to doubly periodic motions manifested as modulated travelling waves. Other multiple bifurcation points appear as double-Hopf bifurcations. It is believed that this paper gives the first quantitative comparison of dynamics of double-diffusive type predicted by rationally derived amplitude equations and by full nonlinear partial differential equations. The implications for physically observable natural phenomena are discussed. This problem has been treated previously, but the earlier numerical treatment is in error, and is corrected here. When the Stokes drift gradient due to surface waves is not constant, the analogy with the common formulations of double-diffusion problems is compromised. Our bifurcation analyses are extended here to include the case of exponentially decaying Stokes drift gradient.
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Schmitt, R. W. "Double Diffusion in Oceanography." Annual Review of Fluid Mechanics 26, no. 1 (January 1994): 255–85. http://dx.doi.org/10.1146/annurev.fl.26.010194.001351.

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Carpenter, J. R., T. Sommer, and A. Wüest. "Stability of a Double-Diffusive Interface in the Diffusive Convection Regime." Journal of Physical Oceanography 42, no. 5 (May 1, 2012): 840–54. http://dx.doi.org/10.1175/jpo-d-11-0118.1.

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Abstract In this paper, the authors explore the conditions under which a double-diffusive interface may become unstable. Focus is placed on the case of a cold, freshwater layer above a warm, salty layer [i.e., the diffusive convection (DC) regime]. The “diffusive interface” between these layers will develop gravitationally unstable boundary layers due to the more rapid diffusion of heat (the destabilizing component) relative to salt. Previous studies have assumed that a purely convective-type instability of these boundary layers is what drives convection in this system and that this may be parameterized by a boundary layer Rayleigh number. The authors test this theory by conducting both a linear stability analysis and direct numerical simulations of a diffusive interface. Their linear stability analysis reveals that the transition to instability always occurs as an oscillating diffusive convection mode and at boundary layer Rayleigh numbers much smaller than previously thought. However, these findings are based on making a quasi-steady assumption for the growth of the interfaces by molecular diffusion. When diffusing interfaces are modeled (using direct numerical simulations), the authors observe that the time dependence is significant in determining the instability of the boundary layers and that the breakdown is due to a purely convective-type instability. Their findings therefore demonstrate that the relevant instability in a DC staircase is purely convective.
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Oshchepkov, V. O., Е. А. Mosheva, and А. I. Mizev. "Double diffusive instability during codirectional diffusion of dissolved components." Вестник Пермского университета. Физика, no. 4 (2019): 60–65. http://dx.doi.org/10.17072/1994-3598-2019-4-60-65.

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Gudbjartsson, Hákon, Stephan E. Maier, and Ferenc A. Jolesz. "Double line scan diffusion imaging." Magnetic Resonance in Medicine 38, no. 1 (July 1997): 101–9. http://dx.doi.org/10.1002/mrm.1910380115.

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Milhazes, Jorge, and Pedro J. Coelho. "Adaptive Finite Element Simulation of Double-Diffusive Convection." Energies 16, no. 4 (February 17, 2023): 2010. http://dx.doi.org/10.3390/en16042010.

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Double-diffusive convection plays an important role in many physical phenomena of practical importance. However, the numerical simulation of these phenomena is challenging since fine meshes are often required to capture the flow physics. Hence, several different numerical methods have been employed in the past. This work reports the development and application of an adaptive finite element method for the simulation of these phenomena, thereby avoiding the need for the use of very fine meshes over the whole domain. The weak formulation of the conservation equations for mass, momentum, energy and species concentration is used. The Boussinesq approximation relates the density of the fluid to the temperature and/or the species concentration. A second-order backward difference method is used for time discretization and the Galerkin method is employed for spatial discretization. Both adaptive time step and grid refinement techniques are employed, and the code is parallelized using MPI. Three different stabilization methods of the convective-diffusion equations are compared; namely, the streamline upwind Petrov–Galerkin (SUPG) method, and two modified methods aimed at diminishing spurious oscillations that include an artificial diffusion term. This diffusion term may be either isotropic or orthogonal to the streamlines. The addition of artificial isotropic diffusion to the SUPG method provides enhanced stability. The method is applied to double-diffusive finger convection in a sucrose-salt aqueous mixture and a stratified salt solution heated from below. The method accurately reproduces the experimentally observed temporal evolution of the salt fingers in the former case and the location of the interfaces between convective and non-convective zones in the latter.
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Radko, Timour, and Melvin E. Stern. "Finescale Instabilities of the Double-Diffusive Shear Flow*." Journal of Physical Oceanography 41, no. 3 (March 1, 2011): 571–85. http://dx.doi.org/10.1175/2010jpo4459.1.

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Abstract This study examines dynamics of finescale instabilities in thermohaline–shear flows. It is shown that the presence of the background diapycnal temperature and salinity fluxes due to double diffusion has a destabilizing effect on the basic current. Using linear stability analysis based on the Floquet theory for the sinusoidal basic velocity profile, the authors demonstrate that the well-known Richardson number criterion (Ri < ¼) cannot be directly applied to doubly diffusive fluids. Rigorous instabilities are predicted to occur for Richardson numbers as high as—or even exceeding—unity. The inferences from the linear theory are supported by the fully nonlinear numerical simulations. Since the Richardson number in the main thermocline rarely drops below ¼, whereas the observations of turbulent patches are common, the authors hypothesize that some turbulent mixing events can be attributed to the finescale instabilities associated with double-diffusive processes.
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Bratsun, D. A., V. O. Oschepkov, E. A. Mosheva, and R. R. Siraev. "The effect of concentration-dependent diffusion on double-diffusive instability." Physics of Fluids 34, no. 3 (March 2022): 034112. http://dx.doi.org/10.1063/5.0079850.

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The article studies the stability of a two-layer miscible system to the double-diffusive instability. The system is placed in a vertical Hele–Shaw cell and is composed of two homogeneous aqueous solutions initially separated by a narrow transient zone. We have restricted our consideration to the initially stable density stratification that precludes the Rayleigh–Taylor instability. The main objective of the study is to elucidate the effect of a concentration-dependent diffusion coefficient, which has been commonly ignored by researchers. Assuming linear dependence of the diffusion coefficient of each solute and using Picard's iteration scheme, we have derived a closed-form analytical expression for the time-dependent density profile. This permits the stability boundary to be established for a two-layer system with respect to the double-diffusive instability by taking into account the effect of a concentration-dependent diffusion coefficient. The obtained analytical result has been substantiated by the results of direct numerical simulation. The experiments have shown that a successive increase in the concentrations of both solutes, with their ratio remaining unchanged, can lead to opposite results. In the case of a NaNO3-H2SO4 pair, the two-layer system, being stable at low concentrations, becomes unstable as the concentrations proportionally increase, giving rise to convective motion in the form of salt fingers. On the contrary, a two-layer system consisting of LiCl and NaNO3 solutions is stabilized with increasing concentrations of dissolved substances. A further increase in the concentrations of these substances causes mechanical equilibrium breaking and subsequent formation of the so-called diffusive-layer convection. The experimental results are in good agreement with the theoretical predictions.
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Pulicani, J. P. "Modélisation isotherme d'une interface diffusive en convection de double-diffusion." International Journal of Heat and Mass Transfer 37, no. 18 (December 1994): 2835–58. http://dx.doi.org/10.1016/0017-9310(94)90339-5.

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Dissertations / Theses on the topic "Double diffusion"

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Petrov, Eugene P., Roland G. Winkler, and Petra Schwille. "Diffusion and segmental dynamics of double-stranded DNA." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-190452.

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Petrov, Eugene P., Roland G. Winkler, and Petra Schwille. "Diffusion and segmental dynamics of double-stranded DNA." Diffusion fundamentals 11 (2009) 62, S. 1, 2009. https://ul.qucosa.de/id/qucosa%3A14027.

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Oduro, Isaac. "Tempered Double Fractional Diffusion Model For Option Pricing." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1587641372696034.

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Smith, Wendy Marie. "The effects of double-diffusion on a baroclinic vortex." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/59487.

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Thesis (M.S.)--Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1987.
Includes bibliographical references (leaves 57-59).
Laboratory experiments were performed to study the combined effects of double-diffusion and rotation on an oceanic intrusion. Intrusions are driven across density-compensated fronts by the divergence of the double-diffusive buoyancy flux. The increased momentum transport across a double-diffusive interface, however, acts to oppose the action of the buoyancy flux. Turbulent double-diffusive Ekman layers could be a means of redistributing momentum. A model of an intrusion was made by injecting salt or sugar solution at the surface of a denser layer of sugar or salt solution in a rotating tank to form a baroclinic vortex. The size and shape of the vortex and the velocity structure of the intrusion were measured as functions of time. The double-diffusive vortex spread more quickly and had slower azimuthal velocities than a non-double-diffusive one. This effect increased as the density ratio approached unity. These results indicate that momentum transport across a double-diffusive interface is larger than that across a non-double-diffusive one; thus, the parameterization of friction in an intrusion model should be considered carefully.
by Wendy Marie Smith.
M.S.
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Kerr, O. S. "Horizontal effects in double-diffusive convection." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380229.

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St, Laurent Louis C. "Diapycnal advection by double diffusion and turbulence in the ocean." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/69185.

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Thesis (Ph. D.)--Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1999.
Includes bibliographical references (leaves 129-139).
Observations of diapycnal mixing rates are examined and related to diapycnal advection for both double-diffusive and turbulent regimes. The role of double-diffusive mixing at the site of the North Atlantic Tracer Release Experiment is considered. The strength of salt-finger mixing is analyzed in terms of the stability parameters for shear and double-diffusive convection, and a nondimensional ratio of the thermal and energy dissipation rates. While the model for turbulence describes most dissipation occurring in high shear, dissipation in low shear is better described by the salt-finger model, and a method for estimating the salt-finger enhancement of the diapycnal haline diffusivity over the thermal diffusivity is proposed. Best agreement between tracer-inferred mixing rates and microstructure based estimates is achieved when the salt-finger enhancement of haline flux is taken into account. The role of turbulence occurring above rough bathymetry in the abyssal Brazil Basin is also considered. The mixing levels along sloping bathymetry exceed the levels observed on ridge crests and canyon floors. Additionally, mixing levels modulate in phase with the spring-neap tidal cycle. A model of the dissipation rate is derived and used to specify the turbulent mixing rate and constrain the diapycnal advection in an inverse model for the steady circulation. The inverse model solution reveals the presence of a secondary circulation with zonal character. These results suggest that mixing in abyssal canyons plays an important role in the mass budget of Antarctic Bottom Water.
by Louis Christopher St. Laurent.
Ph.D.
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Chaplin, Jeremiah E. "An inverse model of double diffusive convection in the Beaufort Sea." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FChaplin.pdf.

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Thesis (M.S. in Meteorology and Physical Oceanography)--Naval Postgraduate School, December 2009.
Thesis Advisor(s): Radko, Timour. Second Reader: Schoenstadt, Arthur. "December 2009." Description based on title screen as viewed on February 01, 2010. Author(s) subject terms: Double diffusion, inverse model, 4/3 Flux Law. Includes bibliographical references (p. 69-71). Also available in print.
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Beaume, Cédric. "États localisés dans les systèmes fluides : application à la double diffusion." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1726/.

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Les états spatialement localisés sont des solutions physiques possédant une structure spatiale particulière en une région bien définie d'un domaine structuré différemment. Nous nous intéressons aux états spatialement localisés susceptibles de se former lorsqu'une convection d'origine thermique est couplée à une convection d'origine solutale ou induite par la rotation du système. Trois configurations physiques différentes sont abordées : la convection de double diffusion induite par des gradients thermiques et solutaux verticaux dans des couches fluides bidimensionnelles, celle induite par des gradients horizontaux dans des cavités tridimensionnelles et la convection de Rayleigh-Bénard en présence de rotation. Dans chacun des cas, des solutions spatialement localisées sont obtenues et analysées en utilisant la théorie des systèmes dynamiques. Les résultats obtenus dans ce travail révèlent différents scénarios d'un même mécanisme baptisé snaking, observé et analysé è l'aide d'équations modèles
Spatially localized states are physical solutions with a particular structure in a well-defined region in space that is embedded in a different background. We focus here on such states that are formed when thermal convection is coupled to solutal or Coriolis forcing. Three different physical configurations are studied: doubly diffusive convection with vertical gradients of temperature and concentration in two-dimensional fluid layers, doubly diffusive convection with horizontal gradients in three-dimensional fluid layers and Rayleigh-Bénard convection in the presence of rotation. In each of these cases, spatially localized solutions are computed and analyzed using dynamical systems theory. Our results reveal different variations of snaking, a mechanism observed and analyzed using model equations
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Scheifele, Benjamin. "Double diffusion in Powell Lake : new insights from a unique case study." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45107.

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High resolution measurements of temperature and electrical conductivity in Powell Lake, British Columbia provide an extensive set of layer and interface observations of a double diffusive staircase found between 325–350 m depth. Powell Lake is an ex-fjord with a quiescent salt layer at thermal steady state in which double diffusion is naturally isolated from turbulent and advective processes. Layers are coherent on the basin scale and their characteristics have a well defined vertical structure. The steady state heat flux is estimated from the large-scale temperature profile and agrees with an earlier estimate of the flux in the sediments. These estimates are compared to a 4/3 flux parameterization which agrees with the steady state flux to within a factor of 2. The discrepancy is explained by testing the scaling underlying the parameterization directly, and it is found that the assumed power law deviates systematically from the observations. Consequently, a different scaling which better describes the observations is presented. The assumption that interfacial fluxes are dominated by molecular diffusion is tested by comparing the interfacial gradient to that expected from the steady state heat flux; at low density ratios, the average interfacial gradient is not sufficiently large to account for transport by molecular diffusion alone, indicating that double diffusive fluxes cannot generally be estimated from bulk interface properties. Salinity interfaces are only marginally (9%) smaller than temperature interfaces, and a simple model to describe the observed difference is presented and shown to be consistent with the observations.
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Anouar, Khalid. "Rôle de la diffusion moléculaire dans les transferts des masse : application aux milieux à double porosité." Lille 1, 1993. http://www.theses.fr/1993LIL10064.

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Les transferts de masse dans les milieux poreux saturés à double porosité ne peuvent être approchés par une fonction de transfert solution de l'équation classique de convection-dispersion. Cette dernière augmentée d'un terme source ou puits reflétant les échanges de soluté entre deux fractions de l'espace poral intéressé par le flux de matière, permet d'obtenir des signaux asymétriques superposables aux courbes de restitution obtenues à partir des traçages expérimentaux sur colonne de laboratoire. La comparaison des résultats de deux modèles conceptuels basés sur cette approche a permis de mettre en évidence le rôle joué par la diffusion moléculaire lors du déplacement des solutés dans les milieux à double porosité. La dispersion cinématique qui est due à la variabilité des vitesses microscopiques de chaque molécule et la diffusion moléculaire, sont deux phénomènes qui ont pour conséquence principale de dévier les particules de traceur de la trajectoire qui s'apparente le plus à une ligne droite entre l'entrée et la sortie d'un système de traçage ; ce rôle justifie le traitement de l'équation classique de dispersion-convection dans le cadre de la géométrie des fractales. Cette approche nous a permis de reconstituer les différents régimes d'écoulement à partir des dimensions fractales et des vitesses interstitielles et de mettre l'accent sur le champ d'action de la diffusion moléculaire. Elle nous a permis par ailleurs, de suivre l'évolution de dispersivité en fonction des distances d'investigation.
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Books on the topic "Double diffusion"

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Dekimpe, M. Global diffusion of network technologies: A double-hazard approach. France: INSEAD, 1997.

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Dekimpe, Marnik G. Global diffusion of network technologies: A double-hazard approach. Fontainebleau: INSEAD, 1997.

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Smith, Wendy Marie. The effects of double-diffusion on a baroclinic vortex. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1987.

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Smith, Wendy Marie. The effects of double-diffusion on a baroclinic vortex. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1987.

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Pavia, K. Josephine. A review of double-diffusion wood preservation suitable for Alaska. Portland, OR: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2006.

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R, Gjovik Lee, Rocky Mountain Research Station (Fort Collins, Colo.), and United States Forest Service, eds. Service life of fence posts treated by double-diffusion methods. Fort Collins, CO (240 W. Prospect Rd., Fort Collins 80528): U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 1999.

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Pavia, K. Josephine. A review of double-diffusion wood preservation suitable for Alaska. Portland, OR: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2006.

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Laurent, Louis C. St. Diapycnal advection by double diffusion and turbulence in the ocean. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1999.

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Schmitt, Raymond W. Double diffusion in oceanography: Proceedings of a meeting September 26-29, 1989. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1991.

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F, Gelder Thomas, United States. Army Aviation Research and Technology Activity., and United States. National Aeronautics and Space Administration., eds. Design and performance of controlled-diffusion stator compared with original double-circular-arc stator. [Washington, DC]: National Aeronautics and Space Administration, 1987.

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Book chapters on the topic "Double diffusion"

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de Lemos, Marcelo J. S. "Double Diffusion." In Thermal Non-Equilibrium in Heterogeneous Media, 89–105. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14666-9_5.

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Yolcu, Cem, Magnus Herberthson, Carl-Fredrik Westin, and Evren Özarslan. "Magnetic Resonance Assessment of Effective Confinement Anisotropy with Orientationally-Averaged Single and Double Diffusion Encoding." In Mathematics and Visualization, 203–23. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-56215-1_10.

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AbstractPorous or biological materials comprise a multitude of micro-domains containing water. Diffusion-weighted magnetic resonance measurements are sensitive to the anisotropy of the thermal motion of such water. This anisotropy can be due to the domain shape, as well as the (lack of) dispersion in their orientations. Averaging over measurements that span all orientations is a trick to suppress the latter, thereby untangling it from the influence of the domains’ anisotropy on the signal. Here, we consider domains whose anisotropy is modeled as being the result of a Hookean (spring) force, which has the advantage of having a Gaussian diffusion propagator while still confining the spatial range for the diffusing particles. In fact, this confinement model is the effective model of restricted diffusion when diffusion is encoded via gradients of long durations, making the model relevant to a broad range of studies aiming to characterize porous media with microscopic subdomains. In this study, analytical expressions for the powder-averaged signal under this assumption are given for so-called single and double diffusion encoding schemes, which sensitize the MR signal to the diffusive displacement of particles in, respectively, one or two consecutive time intervals. The signal for one-dimensional diffusion is shown to exhibit power-law dependence on the gradient strength while its coefficient bears signatures of restricted diffusion.
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Dijkstra, Jeanne, and Cees P. de Jager. "Gel Double-Diffusion Test in Plates." In Practical Plant Virology, 341–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-72030-7_55.

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Vitagliano, Vincenzo. "Diffusion and Double Diffusive Convection in Isothermal Liquid Boundaries." In Geophysical Monograph Series, 185–93. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm094p0185.

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Katscher, Ulrich, Jakob Meineke, Shuo Zhang, Björn Steinhorst, and Jochen Keupp. "On the b-value Derivation for diffusion-weighted Double-Echo Steady-State (dwDESS) Magnetic Resonance Imaging." In Computational Diffusion MRI, 3–11. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-87615-9_1.

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Ameer Ahamad, N., Azeem, Maughal Ahmed Ali Baig, and D. Maneiah. "Double Diffusion Caused by Hot Strip in Porous Material." In Advances in Lightweight Materials and Structures, 739–49. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7827-4_75.

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Karimov, Azar. "Stock Prices Follow a Double Exponential Jump-Diffusion Model." In Contributions to Management Science, 37–71. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65009-8_5.

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Ameer Ahamad, N., Azeem, Maughal Ahmed Ali Baig, and A. Praveen Kumar. "Double Diffusion Due to Centrally Heated Strip in Porous Material." In Advances in Lightweight Materials and Structures, 717–25. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7827-4_73.

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Yu, Xiaomei, Zhaoli Guo, and Baochang Shi. "Numerical Study of Cross Diffusion Effects on Double Diffusive Convection with Lattice Boltzmann Method." In Computational Science – ICCS 2007, 810–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-72584-8_107.

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Paetzold, O. "Vectorization of Diffusion of Lattice Gases Without Double Occupancy of Sites." In Springer Proceedings in Physics, 197–200. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76382-3_20.

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Conference papers on the topic "Double diffusion"

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Mamedov, F., J. Koníček, I. Štekl, Osvaldo Civitarese, Ivan Stekl, and Jouni Suhonen. "Apparatus for the Measurement of [sup 222]Rn Diffusion." In WORKSHOP ON CIRCULATION OF DOUBLE-BETA-DECAY MATRIX. AIP, 2009. http://dx.doi.org/10.1063/1.3266088.

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Zhang, Maolin, Yufeng Guo, Xiao Gong, Jing Chen, Jun Zhang, Qingda Zhao, and Yi Tong. "A Novel Double-Gate Diffusion-Enhancement FinFET." In 2019 Electron Devices Technology and Manufacturing Conference (EDTM). IEEE, 2019. http://dx.doi.org/10.1109/edtm.2019.8731224.

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Al Mashrafi, Khaled S. M. "Stability of Vertical Double-Diffusive Interfaces In The Presence Of Material Diffusion." In 2nd International Conference on Fluid Flow and Thermal Science (ICFFTS'21). Avestia Publishing, 2021. http://dx.doi.org/10.11159/icffts21.115.

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Ahamad, N. Ameer, Manzoor Elahi M. Soudagar, and Irfan Anjum Badruddin. "Double diffusion in arbitrary porous cavity: Part I." In INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIALS, CHARACTERIZATION, SOLID STATE PHYSICS, POWER, THERMAL AND COMBUSTION ENERGY: FCSPTC-2017. Author(s), 2017. http://dx.doi.org/10.1063/1.4990203.

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Ahamad, N. Ameer, Sarfaraz Kamangar, Salman Ahmed N. J., Manzoor Elahi M. Soudagar, and T. M. Yunus Khan. "Double diffusion in arbitrary porous cavity: Part II." In INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIALS, CHARACTERIZATION, SOLID STATE PHYSICS, POWER, THERMAL AND COMBUSTION ENERGY: FCSPTC-2017. Author(s), 2017. http://dx.doi.org/10.1063/1.4990204.

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Ahamad, N. Ameer, Salman Ahmed N. J., Sarfaraz Kamangar, T. M. Yunus Khan, and Manzoor Elahi M. Soudagar. "Double diffusion in arbitrary porous cavity: Part III." In INTERNATIONAL CONFERENCE ON FUNCTIONAL MATERIALS, CHARACTERIZATION, SOLID STATE PHYSICS, POWER, THERMAL AND COMBUSTION ENERGY: FCSPTC-2017. Author(s), 2017. http://dx.doi.org/10.1063/1.4990205.

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Mizev, Aleksey, Andrey Shmyrov, and Elena Mosheva. "Video: Double-diffusion under pumping: mixing through dancing." In 74th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2021. http://dx.doi.org/10.1103/aps.dfd.2021.gfm.v0055.

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Fernando, H. J. S., C. Y. Ching, Z. Zhao, S. Pol, and S. W. Webb. "Convection in Underground Oil Caverns: The Role of Double Diffusion." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32578.

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Abstract:
The US Strategic Petroleum Reserve (SPR) stores oil in large underground salt caverns. This oil has compositional and thermal gradients induced by geothermal heating from both the bottom surface and side walls. Temperature layering has been recorded in SPR oil caverns, which is hypothesized to be predominantly due to double-diffusive layering that occurs when a stable compositional gradient is heated from below. Initial results of a laboratory experimental program aimed at studying dynamics of such double-diffusive layers in the context of SPR are described in this paper. Of particular interest are the thickness of convecting layers, layer evolution (migration/merging) and conditions for the formation/non-formation of double-diffusive layers.
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Yan, Y., C. Adimoolam, and M. Z. Saghir. "Double diffusion convection under sinusoidal modulations of low frequency vibrations." In 57th International Astronautical Congress. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.iac-06-a2.2.02.

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Baig, Maughal Ahmed Ali, Azeem, N. J. Salman Ahmed, Sarfaraz Kamangar, T. M. Yunus Khan, Irfan Anjum Badruddin, Avala Raji Reddy, and H. M. T. Khaleed. "Finite element formulation of conjugate double diffusion in porous annulus." In PROCEEDINGS OF THE 35TH INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY (PPS-35). AIP Publishing, 2020. http://dx.doi.org/10.1063/1.5141590.

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Reports on the topic "Double diffusion"

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Markstrom, Donald C., and Lee R. Gjovik. Service life of fence posts treated by double-diffusion methods. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 1999. http://dx.doi.org/10.2737/rmrs-rp-17.

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Pavia, K. Josephine. A review of double-diffusion wood preservation suitable for Alaska. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2006. http://dx.doi.org/10.2737/pnw-gtr-676.

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Warne, Larry K., Lorena I. Basilio, Rebecca S. Coats, Roy E. Jorgenson, and Kenneth C. Chen. Diffusion Through Single And Double Layer Shields And Induced Voltages From Low Frequency Electromagnetic Environments. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1562193.

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Koseff, J. R. Fluid dynamics of double diffusive systems. Office of Scientific and Technical Information (OSTI), May 1988. http://dx.doi.org/10.2172/5988093.

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Koseff, J. R. Fluid dynamics of double diffusive systems. Office of Scientific and Technical Information (OSTI), April 1989. http://dx.doi.org/10.2172/5990095.

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Koseff, J. R. Fluid dynamics of double diffusive systems. Office of Scientific and Technical Information (OSTI), April 1990. http://dx.doi.org/10.2172/6133743.

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Koseff, J. R. Fluid dynamics of double diffusive systems. Office of Scientific and Technical Information (OSTI), April 1991. http://dx.doi.org/10.2172/6154274.

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Posmentier, Eric S. Double Diffusive Interleaving Across a Thermohaline Front. Fort Belvoir, VA: Defense Technical Information Center, May 1990. http://dx.doi.org/10.21236/ada224822.

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Koseff, J. R. Fluid dynamics of double diffusive systems. Final report. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/90238.

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Lu, Weimin, and W. Worek. A double wavelength interferometer for the study of heat and mass transfer in double diffusive systems. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6922996.

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