Results 51 to 60 of about 305,582 (332)

A stable and accurate control-volume technique based on integrated radial basis function networks for fluid-flow problems [PDF]

open access: yes, 2011
Radial basis function networks (RBFNs) have been widely used in solving partial differential equations as they are able to provide fast convergence.
Mai-Duy, N., Tran-Cong, T.
core   +2 more sources

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

open access: yesAdvanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong   +3 more
wiley   +1 more source

A genuinely stable Lagrange–Galerkin scheme for convection-diffusion problems [PDF]

open access: yes, 2015
We present a Lagrange–Galerkin scheme free from numerical quadrature for convection-diffusion problems. Since the scheme can be implemented exactly as it is, theoretical stability result is assured.
M. Tabata, Shinya Uchiumi
semanticscholar   +1 more source

A stabilized finite element method for inverse problems subject to the convection-diffusion equation. I: diffusion-dominated regime [PDF]

open access: yes, 2019
The numerical approximation of an inverse problem subject to the convection--diffusion equation when diffusion dominates is studied. We derive Carleman estimates that are on a form suitable for use in numerical analysis and with explicit dependence on ...
Burman, Erik   +2 more
core   +2 more sources

Functional Metal Complexes for Solar–Light‐Driven Energy Conversion

open access: yesAdvanced Materials, EarlyView.
This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin   +3 more
wiley   +1 more source

Fast iterative solvers for convection-diffusion control problems [PDF]

open access: yes, 2011
In this manuscript, we describe effective solvers for the optimal control of stabilized convection-diffusion problems. We employ the local projection stabilization, which we show to give the same matrix system whether the discretize-then-optimize or ...
Pearson, John W., Wathen, A. J.
core  

A Comprehensive Review of Waste‐Derived Materials for Solar Still Performance Enhancement

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT Solar desalination reduces energy use and produces freshwater sustainably, but its productivity is limited and cannot meet rising demand. Thus, solar desalination system improvements are sought to boost water productivity. Waste materials are abundantly available and burden the environment, making them low‐cost enhancers for solar desalination
A. S. Abdullah   +6 more
wiley   +1 more source

High-Order Finite Difference Hermite Weighted Essentially Nonoscillatory Method for Convection–Diffusion Equations

open access: yesMathematical and Computational Applications
A kind of finite difference Hermite WENO (HWENO) method is presented in this paper to deal with convection-dominated convection-diffusion equations in uniform grids.
Yabo Wang, Hongxia Liu
doaj   +1 more source

Non-similar analysis of the Cattaneo-Christov model in MHD second-grade nanofluid flow with Soret and Dufour effects

open access: yesAlexandria Engineering Journal, 2023
Influences of Soret (thermo-diffusion) and Dufour (diffusion-thermo) effects for MHD second grade nanofluid flow by a stretchable Riga surface is investigated. The Cattaneo-Christove (CC) method is used to predict heat and mass transport.
Faisal Shah   +2 more
doaj   +1 more source

Architecture of an All‐In‐One Microfluidic Platform for Accelerated Cancer Seeding, Enhanced Spheroid Formation, and Dynamic Drug Screening Trials

open access: yesAdvanced Materials Technologies, EarlyView.
An all‐in‐one microfluidic platform consists of two‐layered PDMS channels integrated with a hydrogel microwell array. This platform enables flow‐driven tumor cell capture, enhanced spheroid formation within the microwells, and advective drug testing. ABSTRACT Effective cancer drug screening requires platforms that replicate the physiological complexity
Omar M. Rahman   +2 more
wiley   +1 more source

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