Results 111 to 120 of about 1,498,610 (256)

Generalized finite element method for multiscale analysis [PDF]

open access: yes, 2004
This dissertation describes a new version of the Generalized Finite Element Method (GFEM), which is well suited for problems set in domains with a large number of internal features (e.g. voids, inclusions, etc.), which are practically impossible to solve
Zhang, Lin
core  

Numerical data generation for building machine learning models for permeability estimation of fibrous structures

open access: yesPolymer Composites, EarlyView.
Data‐driven emulators can estimate the permeability in less than 10% of the time compared to numerical permeability determination. Abstract The challenge of developing effective multiscale flow simulation methods is to take into account all relevant physical effects from fiber to component level, but remain manageable in terms of computational effort ...
Tim Schmidt   +5 more
wiley   +1 more source

Impregnation and saturation analysis of microwave‐preheated reactive resin in liquid composite molding

open access: yesPolymer Composites, EarlyView.
Analysis of the improvements of impregnating and saturating resin flows in microwave‐preheated liquid composite molding. Abstract In liquid composite molding processes, resin preheating is a strategy to reduce the viscosity, which consequently improves resin flow and reduces impregnation time. However, the provision of heat to thermoset systems must be
Vitantonio Esperto   +2 more
wiley   +1 more source

Adaptive ACMS: A robust localized Approximated Component Mode Synthesis Method

open access: yes, 2017
We consider finite element methods of multiscale type to approximate solutions for two-dimensional symmetric elliptic partial differential equations with heterogeneous $L^\infty$ coefficients.
Madureira, Alexandre L., Sarkis, Marcus
core  

Advanced Multiscale Modeling of Potassium‐Ion Batteries for Interplay of Electrochemical and Mechanical Behavior Across Scales

open access: yesSmall Structures, EarlyView.
A multiscale modeling approach is developed to investigate the electrochemical and mechanical behavior of potassium‐ion batteries. By integrating density functional theory‐derived material properties with a 3D particle network model, this study reveals the significant influence of K‐ion concentration on diffusion and mechanical stability.
Subeen Kim   +3 more
wiley   +1 more source

Fault diagnosis method of a cascaded H‐bridge inverter based on a multisource adaptive fusion CNN‐transformer

open access: yesIET Power Electronics, EarlyView.
The multisource adaptive fusion CNN‐transformer method proposed in this study can provide theoretical and technical support for fault diagnosis of high‐voltage MCHBI. It has a promising potential for engineering applications. Abstract In high‐voltage applications, the number of cascaded H‐bridge inverter units is large, the failure probability ...
Weiman Yang   +4 more
wiley   +1 more source

Learning Image Fractals Using Chaotic Differentiable Point Splatting

open access: yesComputer Graphics Forum, EarlyView.
Abstract Fractal geometry, defined by self‐similar patterns across scales, is crucial for understanding natural structures. This work addresses the fractal inverse problem, which involves extracting fractal codes from images to explain these patterns and synthesize them at arbitrary finer scales.
A. Djeacoumar   +3 more
wiley   +1 more source

Online mixed multiscale finite element method with oversampling and its applications [PDF]

open access: yesarXiv, 2018
In this paper, we consider an online basis enrichment mixed generalized multiscale method with oversampling, for solving flow problems in highly heterogeneous porous media. This is an exten- sion of the online mixed generalized multiscale method [6].
arxiv  

Do Formal Stance Strategies Reveal Disciplinary Variation in Professional Scientific Writing?

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Stance in academic discourse has been extensively studied, with numerous investigations indicating that its expression varies across disciplines, depending on the authors’ intention to either enhance or diminish their voice or presence (e.g., It seems fairly certain vs. This is based on the belief that…).
Elizaveta A. Smirnova   +1 more
wiley   +1 more source

Implementation of a Smeared Crack Band Model in a Micromechanics Framework [PDF]

open access: yes
The smeared crack band theory is implemented within the generalized method of cells and high-fidelity generalized method of cells micromechanics models to capture progressive failure within the constituents of a composite material while retaining ...
Arnold, Steven M.   +3 more
core   +1 more source

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