Results 111 to 120 of about 8,616,866 (238)

Effect of Soret and Temperature Dependent Viscosity on Thermohaline Convection in a Ferrofluid Saturating a Porous Medium [PDF]

open access: yes, 2014
Soret driven ferrothermoconvective instability in multi-component fluids has a wide range of applications in heat and mass transfer. This paper deals with the theoretical investigation of the effect of temperature dependent viscosity on a Soret driven ...
Raju, K., Sekar, R., K. Raju, R. Sekar
core   +1 more source

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo   +2 more
wiley   +1 more source

Routing and Downlink Resource Allocation for Multicast Traffic in LEO Satellite Constellations

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this work, we optimize unicast and multicast traffic delivery over non‐terrestrial networks (NTNs) to users on the ground through direct satellite downlink (DL). We consider a gateway‐free mesh architecture with low Earth orbit (LEO) satellites interconnected via inter‐satellite links (ISLs), where unicast and multicast services compete for
Federico Lozano‐Cuadra   +3 more
wiley   +1 more source

Comparative study of hybrid, tri-hybrid and tetra-hybrid nanoparticles in MHD unsteady flow with chemical reaction, activation energy, Soret-Dufour effect and sensitivity analysis over Non-Darcy porous stretching cylinder

open access: yesHeliyon
Present study investigates influence of Soret-Dufour effects on MHD unsteady flow of a tetra-hybrid nanofluid (Al2O3, Cu, SiO2 and TiO2 with base fluid water) within non-Darcy porous stretching cylinder. Additionally, chemical reaction, activation energy,
Amudhini M, Poulomi De
doaj   +1 more source

Unraveling Structure‐Dependent Performance of Cu–N–C Molecular Catalysts for Electrocatalytic CO2 Methanation

open access: yesSmall, EarlyView.
Copper phthalocyanine (CuPc) and copper tetraphenylporphyrin (CuPr) both contain Cu–N4 sites, yet CuPc shows superior CO2‐to‐CH4 selectivity. Further analysis suggests that the Pc‐macrocycle tunes the electronic structure of Cu center and induces charge transfer, possibly via its π‐conjugated Pc‐ring and bridge‐N environment.
Tengyi Liu   +8 more
wiley   +1 more source

Multiphysics Finite Element Analysis of Diffusive–Bioconvective MHD Hybrid Nanofluid Flow Over an Exponentially Stretching Sheet

open access: yesAdvances in Mathematical Physics
This study examines the diffusive–bioconvective magnetohydrodynamic (MHD) flow of a hybrid nanofluid past an exponentially stretching sheet embedded in a porous medium, incorporating thermal radiation, viscous dissipation, Soret–Dufour effects, and ...
Paul M. Matao, L. Joseph Sademaki
doaj   +1 more source

Biopolymer‐Based Polyelectrolyte Nanoplatforms for Targeted Photodynamic Therapy of Breast Cancer

open access: yesVIEW, EarlyView.
Illustration of the synthesis of 5‐aminolevulinic acid loaded chitosan‐sericin polyelectrolyte nanoparticles (CSSN/ALA NPs) using the Flash nanocomplexation (FNC) technique and their potential in photodynamic therapy (PDT) against breast cancer (BC). Abstract Nanomedicine has reshaped healthcare, especially in targeted drug delivery systems (DDSs) and ...
Athira Narayanan   +14 more
wiley   +1 more source

Soret feedback in thermal diffusion of suspensions [PDF]

open access: yes, 1998
We have theoretically studied the interaction of a light beam with liquids containing absorbing nanoparticles. We have shown that the Soret effect ensures a feedback that essentially limits heat insertion into the system and the change in its temperature:
Luo, Weili, Tabiryan, Nelson V.
core   +1 more source

Training and validation of an automated algorithm to differentiate no and minimal diabetic retinopathy from more severe stages in wide‐field images

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Diabetic retinopathy (DR) is a leading cause of blindness in the working‐age population. Screening is essential to identify and treat sight‐threatening stages prior to irreversible visual loss. This study aimed to train and validate an automated algorithm to identify no or minimal DR, potentially saving resources for specialist ...
Lars Morten Skollerud   +4 more
wiley   +1 more source

Soret and Dufour effects on free convective heat and solute transfer in fluid saturated inclined porous cavity

open access: yesEngineering Science and Technology, an International Journal, 2015
The present problem addresses double diffusive free convection in an inclined square cavity filled with fluid saturated porous medium under the influence of Soret and Dufour effects. The inclined cavity makes an angle with the horizontal plane.
Chandra Shekar Balla, Kishan Naikoti
doaj   +1 more source

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