Results 141 to 150 of about 307,407 (286)

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

Advanced Energy and Sustainability Research, EarlyView.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said, Aggrey Mwesigye, Lingala Syam Sundar, Arun Kumar Tiwari, Kalidasan Balasubramanian, Hafiz Muhammad Ali, Evangelos Bellos, Chaerin Gim, Mohammad Shamsuddin Ahmed, Jang‐Yeon Hwang   +9 more
wiley   +1 more source

Construction of hybrid 1D‐0D networks for efficient and accurate blood flow simulations

International Journal for Numerical Methods in Fluids, Volume 95, Issue 2, Page 262-312, February 2023., 2023
A set of coupling equations to appropriately couple nonlinear 1D and lumped‐parameter (0D) models for blood flow in compliant vessels is defined. Then, a methodology for the high‐order numerical coupling between 1D and 0D vessels through hybrid junctions is proposed.
Beatrice Ghitti, Pablo J. Blanco, Eleuterio F. Toro, Lucas O. Müller   +3 more
wiley   +1 more source

Polarization‐Induced Quantum Confinement of Negative Charge Carriers by Organic Nanoporous Frameworks

Angewandte Chemie, EarlyView.
Excess‐electrons in organic nanoporous systems—nanohoops, their assemblies, and COFs—can be confined and transported via diffuse states stabilized by long‐range polarization forces. These nanopore‐bound states, localized in nanopores or away from molecular scaffolds, exhibit enhanced electron coupling and nearly‐free‐electron bands, unlike traditional ...
Ritaj Tyagi, Vamsee K. Voora
wiley   +2 more sources

Rapid Design of Efficient Mn3O4‐Based Photocatalysts by Machine Learning and Density Functional Theory Calculations

Advanced Energy and Sustainability Research, EarlyView.
A rapid design strategy is presented for efficient Al‐doped Mn3O4‐based photocatalysts by integrating density functional theory calculations, machine learning (ML) modeling, and experiments. The optimized Al0.5Mn2.5O4/35 wt%‐Ag3PO4 heterojunctions achieved a 27‐fold improvement in methylene blue degradation under visible light compared to pristine ...
Haoxin Mai, Xuying Li, Tu C. Le, Salvy P. Russo, David A. Winkler, Dehong Chen, Rachel A. Caruso   +6 more
wiley   +1 more source

A deforming‐mesh finite‐element approach applied to the large‐translation and free‐surface scenario of fused deposition modeling

International Journal for Numerical Methods in Fluids, Volume 95, Issue 2, Page 334-351, February 2023., 2023
A boundary‐conforming free‐surface finite element method applied to fused deposition modeling (FDM) is presented. Using a boundary‐conforming approach shows to have several advantages in an FDM simulation. In particular, boundary conditions, like heat fluxes or free‐surface, can be directly imposed on the boundary.
Felipe A. González, Stefanie Elgeti, Marek Behr, Ferdinando Auricchio   +3 more
wiley   +1 more source

Elucidating the Role of Electric Fields in Fe Oxidation via an Environmental Atom Probe

Angewandte Chemie, EarlyView.
Field‐Assisted Fe Oxidation imaged by Environmental Atom Probe. The oxidation of iron (Fe) at the tip of a sharp needle under high electrostatic fields has been visualized using an Environmental Atom Probe (EAP) and corroborated through Density Functional Theory (DFT) calculations and a mean‐field model applied to a multi‐faceted catalytic grain ...
Sten V. Lambeets, Naseeha Cardwell, Isaac Onyango, Mark G. Wirth, Eric Vo, Yong Wang, Pierre Gaspard, Cornelius F. Ivory, Daniel E Perea, Thierry Visart de Bocarmé, Jean‐Sabin McEwen   +10 more
wiley   +2 more sources

On the regularity in time of weak solutions of quasilinear doubly degenerate parabolic equations [PDF]

, 1996
А. В. Иванов, P. Z. Mkrtychan
openalex   +1 more source

Quasiconformal mappings and degenerate elliptic and parabolic equations

Le Matematiche, 1987
In this paper two Harnak inequalities are proved concerning a degenerate elliptic and a degenerate parabolic equation. In both cases the weight giving the degeneracy is a power of the jacobian of a quasiconformal mapping.
Filippo Chiarenza, Michelangelo Franciosi   +1 more
doaj  

Global Schauder Regularity and Convergence for Uniformly Degenerate Parabolic Equations [PDF]

arXiv
In this paper, we study the global H\"older regularity of solutions to uniformly degenerate parabolic equations. We also study the convergence of solutions as time goes to infinity under extra assumptions on the characteristic exponents of the limit uniformly degenerate elliptic equations.
arxiv  

A unique case of commensalism: The beaver beetle Platypsyllus castoris (Leiodidae, Coleoptera) and its morphological adaptations

Journal of Morphology, Volume 284, Issue 1, January 2023., 2023
We document in detail the morphology of adults of the beaver beetle Platypsyllus castoris with modern techniques, and interpret evolutionary changes linked with the specific life style of the beetle in the fur of the beaver. Platypsyllus displays numerous structural specializations which ensure mechanical stabilization, firm anchorage on the host, and ...
Margarita I. Yavorskaya, Paweł Jałoszyński, Rolf G. Beutel   +2 more
wiley   +1 more source