Results 31 to 40 of about 145,583 (300)
Vacuum Drying Characteristics of Some Vegetables [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2011 In this research the drying of four kinds of vegetables was investigated in a vacuum dryer. The effect of temperature on drying rate of samples at various temperatures (30, 35 and 45 °C) was studied.
Esmaeil Zakipour, Zohreh Hamidi
doaj
Investigation. effect. of mixed. matrix. membranes’. structural. parameters. on their. effective. gaseous. penetrant. diffusion. ratio using. CFD tools [PDF]
Iranian Journal of Chemical Engineering, 2022 Ability and compatibility of the membrane processes for gas separation are evaluated by their membranes’ permeability and selectivity where both have been tried to enhance in promising membrane generation of mixed matrix membranes (MMMs).
M. Morovat, O. Bakhtiari
doaj +1 more source
Effects of solubilization on drug diffusion
Journal of Pharmacy and Pharmacology, 1972 AbstractThe diffusion of ephedrine, sulphathiazole, chloramphenicol, paracetamol, isoniazid and amphetamine in solutions of Tween 40, Tween 80 and cetomacrogol 1000 have been studied. With the exception of isoniazid, the observed diffusion coefficients, corrected for resistance to flow, depend upon the surfactant used and both the drug and surfactant ...
J R, Bloor, J C, Morrison
openaire +2 more sources
, 2020 Direct numerical simulation of diffusion through heterogeneous media can be difficult due to the computational cost of resolving fine-scale heterogeneities.
Carr, Elliot J. +2 more
core +1 more source
Particle diffusion in active fluids is non-monotonic in size [PDF]
, 2015 We experimentally investigate the effect of particle size on the motion of passive polystyrene spheres in suspensions of Escherichia coli. Using particles covering a range of sizes from 0.6 to 39 microns, we probe particle dynamics at both short and long
Arratia, Paulo E. +3 more
core +3 more sources
Oilseeds and fats, crops and lipids, 2014 The fundamental analysis and modeling of kinetics of solvent extraction of rapeseed oil enable the quantification of the “washing” and “diffusion” steps. Both are illustrated through “starting accessibility” and “effective diffusivity”
Allaf Tamara +5 more
doaj +1 more source
Effective diffusivity in yacon potato cylinders during drying
Revista Brasileira de Engenharia Agrícola e AmbientalThe aim of this study was to obtain the effective diffusivity of yacon potato in fixed-bed dryer at different temperatures (50, 60 and 70 ºC) and drying air velocities (1.0, 1.5 and 2.0 m s-1).
Cícera G. C. de Lisboa +5 more
doaj +1 more source
Renormalization of Drift and Diffusivity in Random Gradient Flows
, 1996 We investigate the relationship between the effective diffusivity and effective drift of a particle moving in a random medium. The velocity of the particle combines a white noise diffusion process with a local drift term that depends linearly on the ...
Bouchaud J-P +12 more
core +1 more source
Effects of diffusive property heterogeneity on effective matrix diffusion coefficient for fractured rock [PDF]
Water Resources Research, 2006 Heterogeneities of diffusion properties are likely to influence the effective matrix diffusion coefficient determined from tracer breakthrough curves. The objectives of this study are (1) to examine if it is appropriate to use a single, effective matrix diffusion coefficient to predict breakthrough curves in a fractured formation, (2) to examine if a ...
Zhang, Yingqi +3 more
openaire +2 more sources
Can disorder enhance incoherent exciton diffusion? [PDF]
, 2015 Recent experiments aimed at probing the dynamics of excitons have revealed that semiconducting films composed of disordered molecular subunits, unlike expectations for their perfectly ordered counterparts, can exhibit a time-dependent diffusivity in ...
Lee, Elizabeth M. Y. +2 more
core +2 more sources