98%
921
2 minutes
20
This research is concerned with the mixed convection peristaltic flow of nanofluid in an inclined asymmetric channel. The fluid is conducting in the presence of inclined magnetic field. The governing equations are modelled. Mathematical formulation is completed through long wavelength and low Reynolds number approach. Numerical solution to the nonlinear analysis is made by shooting technique. Attention is mainly focused to the effects of Brownian motion and thermophoretic diffusion of nanoparticle. Results for velocity, temperature, concentration, pumping and trapping are obtained and analyzed in detail.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3781129 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0073248 | PLOS |
Clin Nutr
August 2025
Department of Nephrology, Naval Medical Center of the People's Liberation Amy (PLA), Naval Medical University, Shanghai, China. Electronic address:
Background: Micronutrient deficiencies are common in patients undergoing maintenance hemodialysis (MHD), potentially contributing to adverse clinical outcomes. Hemodiafiltration with endogenous reinfusion (HFR) integrates convection, diffusion, and adsorption, potentially preserving essential nutrients better than traditional online hemodiafiltration (HDF). This study aimed to compare the acute effects of HFR and HDF on serum micronutrient concentrations in MHD patients.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2025
Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, 22908, USA.
Focused Ultrasound (FUS) is the concentration of acoustic energy into a small region to produce therapeutic bioeffects. FUS-induced blood-brain barrier opening (BBBO), a strategy to deliver drugs and genes to the brain, also enhances glymphatic drainage, the brain-specific waste clearance system. Thus, FUS BBBO is a promising strategy for addressing the accumulation of neurotoxic solutes that are characteristic of many neurodegenerative diseases.
View Article and Find Full Text PDFScience
August 2025
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
A planet's interior is a time capsule, preserving clues to its early history. We report the discovery of kilometer-scale heterogeneities throughout Mars' mantle, detected seismically through pronounced wavefront distortion of energy arriving from deeply probing marsquakes. These heterogeneities, likely remnants of the planet's formation, imply a mantle that has undergone limited mixing driven by sluggish convection.
View Article and Find Full Text PDFNat Commun
August 2025
Department of Atmospheric and Oceanic Sciences and Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, USA.
The rapid CO rise during the early deglaciation is often linked to enhanced ventilation by intensified Antarctic Bottom Water (AABW) overturning. The recorded radiocarbon ventilation seesaw during the early deglaciation, which describes improved Southern Ocean and reduced North Atlantic abyssal radiocarbon ventilation, has been interpreted as intensified AABW and reduced North Atlantic Deep Water convections. However, abyssal radiocarbon records also reflect changes in surface reservoir ages and interior water mass mixing.
View Article and Find Full Text PDFPhys Rev E
July 2025
Harbin Institute of Technology, School of Energy Science and Engineering, Harbin, Heilongjiang, People's Republic of China.
The convective and absolute instabilities in electrohydrodynamic-Poiseuille mixed convection for viscoelastic fluids with the Oldroyd-B model are examined. In the absence of Poiseuille flow, based on the stationary and oscillatory characteristics at the onset of convection, we distinguish weakly and strongly elastic fluid, dominated by viscosity effects and elasticity effects, respectively. Their borderline of the two effects in terms of the critical electric Weissenberg W_{ec} satisfies the relation W_{ec}=a/(1-β)+b where β is viscosity ratio, and the parameters a and b depend on dimensionless ion mobility.
View Article and Find Full Text PDF