Results 41 to 50 of about 33,155 (235)

On stability of discretizations of the Helmholtz equation (extended version)

, 2011
We review the stability properties of several discretizations of the Helmholtz equation at large wavenumbers. For a model problem in a polygon, a complete $k$-explicit stability (including $k$-explicit stability of the continuous problem) and convergence
A Bayliss, A. Buffa, AH Barnett, AK Aziz, B Pluymers, C Farhat, CS Morawetz, E Perrey-Debain, EA Spence, F. Ihlenburg, I Babuška, I Babuška, I Harari, I Harari, I. Babuška, JM Melenk, JM Melenk, JM Melenk, L Banjai, M Ainsworth, M Ainsworth, M Ainsworth, M Stojek, O Cessenat, O Cessenat, O Laghrouche, P Cummings, P Monk, P Monk, P Ortiz, R Hiptmair, R Leis, R Tezaur, RJ Astley, SA Sauter, SI Pohožaev, SN Chandler-Wilde, T Betcke, T Huttunen, T Huttunen, T Strouboulis, U Hetmaniuk, X Feng, X Feng, ZC Li   +44 more
core   +1 more source

A quadtree-polygon-based scaled boundary finite element method for image-based mesoscale fracture modelling in concrete [PDF]

, 2019
A quadtree-polygon scaled boundary finite element-based approach for image-based modelling of concrete fracture at the mesoscale is developed. Digital images representing the two-phase mesostructure of concrete, which comprises of coarse aggregates and ...
A.A. Saputra, Benkemoun, Bolander, Bruggi, C. Song, Camacho, Cundall, Deeks, Du, D’Addetta, E.H. Ooi, E.T. Ooi, Eláš, Feng, Gerstle, Grassl, H. Guo, Hordijk, Huang, Huang, Huang, Kozicki, Landis, Legrain, Lian, López, Monteiro, Nitka, Ooi, Pan, Reddy, Ren, Rodrigues, Roth, S. Natarajan, Saputra, Schlangen, Schlangen, Shahbazi, Shahbeyk, Skarżyński, Snozzi, Song, Song, Su, Su, Suchorzewski, Tabarraei, Trawiński, Wang, Wang, Wang, Wriggers, Xu, Yaghoobi, Yang, Yang, Young, Z. Yang, Zhang   +59 more
core   +1 more source

Decoding Hydrogel Porosity: Advancing the Structural Analysis of Hydrogels for Biomedical Applications

Advanced Healthcare Materials, EarlyView.
Porosity governs transport mechanics in hydrogels, yet characterization in its native state remains challenging. This work harnesses particle tracking to uncover three‐dimensional pore geometric features in polyethylene glycol hydrogels. Measurements in the native state reveal pores characteristics are comparable to those obtained by cryogenic scanning
M. A. Kristine Tolentino, Eric Y. Du, Giulia Silvani, Elvis Pandzic, Kristopher A. Kilian, J. Justin Gooding   +5 more
wiley   +1 more source

Aqueous Colloidal Perovskite Quantum Emitters

Advanced Materials, EarlyView.
Facile structural transformation‐induced in situ core‐shell self‐assembly for constructing mono‐dispersed aqueous colloidal perovskite nanocrystals, exhibiting unprecedented aqueous solution single photon emission. Abstract Aqueous solutions of nanoparticles are the cornerstones for applications in diagnostics, catalysis and more, where control over ...
Huajun He, Bo Wang, Xuhai Shen, Minjun Feng, Haixia Rao, Senyun Ye, Linh Lan Nguyen, Martial Duchamp, Shuzhou Li, He Tian, Tze Chien Sum   +10 more
wiley   +1 more source

3D Shape Generation via Variational Autoencoder with Signed Distance Function Relativistic Average Generative Adversarial Network

Applied Sciences, 2023
3D shape generation is widely applied in various industries to create, visualize, and analyse complex data, designs, and simulations. Typically, 3D shape generation uses a large dataset of 3D shapes as the input.
Ebenezer Akinyemi Ajayi, Kian Ming Lim, Siew-Chin Chong, Chin Poo Lee   +3 more
doaj   +1 more source

Quantifying the Effects of Geometric Parameters on the Elastic Properties of Multilayer Graphene Platelet Films

Advanced Materials, EarlyView.
Realistic random 3D periodic representative volume element models of multilayer graphene platelet films are constructed to perform simulations, quantify the effects of different geometric parameters on all their five independent elastic properties, and uncover the dominant deformation mechanisms.
Penghao Qi, Xindong Chen, Hanxing Zhu, Yongtao Lyu, Bu Zhang, Qing Peng, Xiqiao Feng, Tongxiang Fan, Di Zhang   +8 more
wiley   +1 more source

Prediction of aerodynamic performance of NREL offshore 5‐MW baseline wind turbine considering power loss at varying wind speeds

Wind Energy, 2023
In this study, a computational fluid dynamics (CFD) model was developed to simulate the aerodynamic performance of the National Renewable Energy Laboratory (NREL) offshore 5‐MW baseline wind turbine with single rotor and full wind turbine.
Yu‐Hsien Lin, Hsuan‐Kuang Chen, Kuan‐Yi Wu   +2 more
doaj   +1 more source

Short communication: Landlab v2.0: a software package for Earth surface dynamics [PDF]

Earth Surface Dynamics, 2020
Numerical simulation of the form and characteristics of Earth's surface provides insight into its evolution. Landlab is an open-source Python package that contains modularized elements of numerical models for Earth's surface, thus reducing time required ...
K. R. Barnhart, K. R. Barnhart, K. R. Barnhart, E. W. H. Hutton, E. W. H. Hutton, G. E. Tucker, G. E. Tucker, G. E. Tucker, N. M. Gasparini, E. Istanbulluoglu, D. E. J. Hobley, N. J. Lyons, M. Mouchene, S. S. Nudurupati, J. M. Adams, C. Bandaragoda   +15 more
doaj   +1 more source

A New Approach to an all Quadrilateral Mesh Generation over Arbitrary Linear Polygonal Domains for Finite Element Analysis [PDF]

, 2014
This paper describes a scheme for finite element mesh generation of a convex, non-convex polygon and multiply connected linear polygon. We first decompose the arbitrary linear polygon into simple sub regions in the shape of polygons.These subregions may ...
Bharath Rathod, ., Hariprasad, A.S., Rathod, H.T., Shivaram, K.T, Sugantha Devie, K., Vijayakumar, K.V.   +5 more
core  

Optimizing Metamaterial Inverse Design with 3D Conditional Diffusion Model and Data Augmentation

Advanced Materials Technologies, EarlyView.
A generative AI model, the 3D conditional diffusion model (3D‐CDM), is introduced to enhance the inverse design of voxel‐based metamaterials. A data augmentation technique based on topological perturbation expands the dataset, further improving generation quality and accuracy.
Xiaoyang Zheng, Junichiro Shiomi, Takayuki Yamada   +2 more
wiley   +1 more source