Results 91 to 100 of about 8,623,807 (207)

Stably Embedded Minimal Hypersurfaces

open access: yes, 2007
We use Schoen-Simon-Yau's curvature estimates to prove that the subfocal tubular neighborhood of a non planar minimal hypersurface with bounded second fundamental form, stably embedded in R^{n+1}, n < 5, whose radius decays sufficiently slowly can not
NELLI, BARBARA, SORET M.
core   +1 more source

Hydrogen Production With Water Electrolysis Technologies: Advances, Performance, and Potential Use for Low‐Gradient Combustion

open access: yesEnergy Science &Engineering, EarlyView.
This review links recent advances in water electrolysis with hydrogen utilization in low‐gradient combustion systems. While hydrogen eliminates direct CO2 emissions, its environmental and economic benefits depend strongly on production pathways, system‐level efficiency, and NOx mitigation through MILD/FLOX/HiTAC combustion.
Rafał Buczyński, Przemysław Draga
wiley   +1 more source

Sustainable plant‐leaf‐derived carbon dots with deep‐red emission enable 1‐min photodynamic therapy of tumors

open access: yesFlexMat, EarlyView.
In this study, plant‐derived carbon dots (CDs) were prepared using natural plant leaves as raw materials through solvothermal method. These CDs retain the porphyrin structure from chlorophyll and can simultaneously generate I and II types of reactive oxygen species. A 660 nm laser irradiation for only 1 min can achieve efficient photodynamic anti‐tumor
Renjing Chen   +13 more
wiley   +1 more source

Radiation Effect on MHD Blood Flow Through a Tapered Porous Stenosed Artery with Thermal and Mass Diffusion

open access: yesInternational Journal of Applied Mechanics and Engineering, 2019
A mathematical model for MHD blood flow through a stenosed artery with Soret and Dufour effects in the presence of thermal radiation has been studied. A uniform magnetic field is applied perpendicular to the porous surface.
M. Sharma, R.K. Gaur, B.K. Sharma
doaj   +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

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 role of rare copy number variants in early‐onset depression

open access: yesJCPP Advances, EarlyView.
Abstract Background Depression is a highly heterogeneous condition. Depression with an onset in childhood and early adolescence has a worse clinical course, is more heritable, and shows a lower genetic correlation with other depression subtypes, than does later‐onset depression.
Charlotte A. Dennison   +12 more
wiley   +1 more source

Development and Characterization of Liposomes Containing a Zn(II) Porphyrin Derivative for the Application of Photodynamic Therapy in the Treatment of Breast Cancer

open access: yesLasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives This study aims to synthesize and characterize lipid nanosystems (liposomes) for the incorporation of a Zn(II) porphyrin derivative, Zn(II) meso‐tetrakis(N‐n‐hexylpyridinium‐2‐yl)porphyrin (ZnTnHex‐2‐PyP4+, ZnPH), intending to employ an alternative method of treatment, such as photodynamic therapy (PDT), for breast cancer (BC ...
Kammila Martins Nicolau Costa   +5 more
wiley   +1 more source

Numerical simulation of mutual convective heat transfer and Soret-Dufour Effects in a MHD nanofluid-filled porous enclosure with fractal barriers

open access: yesCase Studies in Thermal Engineering
This study presents a numerical investigation of mutual convective heat and mass transfer in a magnetohydrodynamic (MHD) nanofluid-filled porous enclosure featuring fractal internal barriers.
Zahir Shah   +4 more
doaj   +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

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