Results 21 to 30 of about 302,016 (253)

Radiative Mixed Convection over an Isothermal Cone Embedded in a Porous Medium with Variable Permeability

open access: yesJournal of Applied Mathematics, 2011
The interaction of mixed convection with thermal radiation of an optical dense viscous fluid adjacent to an isothermal cone imbedded in a porous medium with Rosseland diffusion approximation incorporating the variation of permeability and thermal ...
M. F. El-Amin   +3 more
doaj   +1 more source

Effects of Gravity and Inlet/Outlet Location on a Two-Phase Cocurrent Imbibition in Porous Media

open access: yesJournal of Applied Mathematics, 2011
We introduce 2D numerical investigations of the problem of gravity and inlet/outlet location effects of water-oil two-phase cocurrent imbibition in a porous medium. Three different cases of side-, top-, and bottom-inlet location are considered.
M. F. El-Amin, Shuyu Sun
doaj   +1 more source

Pupils' Preconceptions about the Natural Phenomena at the Beginning of Primary Education – A Burden and/or an Opportunity

open access: yesInovacije u Nastavi, 2019
Learning about the world that surrounds a child begins well before the start of primary education. Experiential concepts, which children form in direct interaction with the environment, represent an experiential basis on which the formation of scientific
Sanja R. Blagdanić   +2 more
doaj   +1 more source

Improved IMPES Scheme for the Simulation of Incompressible Three-Phase Flows in Subsurface Porous Media

open access: yesEnergies, 2021
In this work, an improved IMplicit Pressure and Explicit Saturation (IMPES) scheme is proposed to solve the coupled partial differential equations to simulate the three-phase flows in subsurface porous media.
Runhong Liang   +4 more
doaj   +1 more source

Apparent Surface Free Energy of Polymer/Paper Composite Material Treated by Air Plasma

open access: yesInternational Journal of Polymer Science, 2017
Surface plasma treatment consists in changes of surface properties without changing internal properties. In this paper composite polymer/paper material is used for production of packaging in cosmetic industry.
Konrad Terpiłowski
doaj   +1 more source

Physical Chemistry of Vital Phenomena [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1917
n ...
openaire   +1 more source

Comparative assessment of the physical structure of antler and bovine bone substitutes: An in vitro study [PDF]

open access: yesJournal of Advanced Periodontology and Implant Dentistry
Background. The use of bone graft materials has significantly increased. Given the inherent variations in structure and functionality between different grafting materials, this evaluated and compared the physical attributes of antler and bovine femur ...
Mohammad Hossein Mahboubian   +3 more
doaj   +1 more source

Study of the Seawater Desalination Performance by Electrodialysis

open access: yesMembranes, 2022
The global scarcity of freshwater resources has greatly contributed to the development of desalination technologies, in which electrodialysis desalination is one of the most widely used and highly regarded methods.
Jihong Shi   +3 more
doaj   +1 more source

Stability of tenogenic secretomes optical density, colour, weight, TGF-b concentration and bacterial growth after 30-day storage under room or refrigerator temperature [PDF]

open access: yesScripta Medica
Background/Aim: The effectiveness and efficiency of tenogenic secretomes products are crucial to assess. Storage conditions affect both the distribution process and the stability of the tenogenic secretomes and their components.
Aziz Mukhlis   +3 more
doaj   +1 more source

A Digital Twin for Unconventional Reservoirs: A Multiscale Modeling and Algorithm to Investigate Complex Mechanisms

open access: yesGeofluids, 2020
The special mechanisms underneath the flow and transport behaviors in unconventional reservoirs are still challenging an accurate and reliable production estimation.
Tao Zhang   +5 more
doaj   +1 more source

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