Results 41 to 50 of about 263,258 (175)

Modeling seismic wave propagation using staggered-grid mimetic finite differences

Bulletin of Computational Applied Mathematics, 2017
Mimetic finite difference (MFD) approximations of continuous gradient and divergence operators satisfy a discrete version of the Gauss-Divergence theorem on staggered grids.
Freysimar Solano-Feo, Juan Guevara-Jordan, Carlos González-Ramiréz, Otilio Rojas-Ulacio, Beatriz Otero-Calvinyo   +4 more
doaj  

Temporal Interference Stimulation Enhances Neural Regeneration

Advanced Science, EarlyView.
Temporal interference (TI) stimulation is proposed as a non‐invasive approach to enhance neural regeneration in the deep brain. Theta‐band TI modulation selectively promotes neural progenitor cell differentiation in vitro and augments hippocampal neurogenesis in amouse model of Alzheimer's disease‐like amyloidosis.
Sofia Peressott, Maria Garcia Garrido, Patrycja Dzialecka, Rachel Man Hoi Law, Roberto Portillo‐Lara, Bethany Geary, Elena Faillace, Shirine Merlo‐Nikpay Aslie, Marcelina Wojewska, Maria Otero‐Jimenez, Martina Genta, Luqiao Tan, Karen Duff, Javier Alegre‐Abarrategui, Rylie Green, Nir Grossmann   +15 more
wiley   +1 more source

Parametric Analysis of Spiking Neurons in 16 nm Fin Field‐Effect Transistor Technology

Advanced Intelligent Discovery, EarlyView.
Energy efficient computing has driven a shift toward brain‐inspired neuromorphic hardware. This study explores the design of three distinct silicon neuron topologies implemented in 16 nm fin field‐Effect transistor technology. While the Axon‐Hillock design achieves gigahertz throughput, its functional fragility persists. The Morris–Lecar model captures
Logan Larsh, Raiyan Siddique, Sarah S. Sharif, Yaser Mike Banad   +3 more
wiley   +1 more source

A new locking-free polygonal plate element for thin and thick plates based on Reissner-Mindlin plate theory and assumed shear strain fields

, 2018
A new $n-$ noded polygonal plate element is proposed for the analysis of plate structures comprising of thin and thick members. The formulation is based on the discrete Kirchhoff Mindlin theory.
Bordas, Stephane PA, Natarajan, Sundararajan, Videla, Javier   +2 more
core   +1 more source

Patterns of interspecific variation in labial microarchitecture among anthropoid primates and the evolution of the hominin lips

The Anatomical Record, EarlyView.
Comparative histological and semi‐automated image analysis of primate lips: Masson's trichrome‐stained sagittal sections were segmented to quantify the connective tissue, adipose, and muscular components, enabling interspecific comparisons of labial architecture.
Liat Rotenstreich, Kfir Eliyahu, Nir Edery, Lior Moss, Saleem Eben Bari, Assaf Marom   +5 more
wiley   +1 more source

Mimetic Finite Difference Method for Shape Optimization Problems

, 2014
We test the performance of the Mimetic Finite Difference method applied to a wide class of shape optimization problems. Adaptive strategies based on heuristic error indicators are also considered to validate the effectiveness of the numerical scheme.
ANTONIETTI, PAOLA FRANCESCA, BIGONI, NADIA, VERANI, MARCO   +2 more
openaire   +2 more sources

Mimetic finite difference approximation of quasilinear elliptic problems

Calcolo, 2014
The authors consider the following quasilinear elliptic problem \[ -\mathrm{div} (\kappa (|\nabla u|^2)\nabla u)=f \quad \text{in}\, \Omega, \qquad u=0\quad \text{on}\, \partial \Omega , \tag{1} \] where \(f\) is a given function and \(\Omega\) is an open, bounded set of \(\mathbb{R}^2\) with boundary \(\partial \Omega\).
ANTONIETTI, PAOLA FRANCESCA, BIGONI, NADIA, VERANI, MARCO   +2 more
openaire   +3 more sources

A Stable Mimetic Finite-Difference Method for Convection-Dominated Diffusion Equations

SIAM Journal on Scientific Computing, 2023
Convection-diffusion equations arise in a variety of applications such as particle transport, electromagnetics, and magnetohydrodynamics. Simulation of the convection-dominated regime for these problems, even with high-fidelity techniques, is particularly challenging due to the presence of sharp boundary layers and shocks causing jumps and ...
James H. Adler, Casey Cavanaugh, Xiaozhe Hu, Andy Huang, Nathaniel Trask   +4 more
openaire   +2 more sources

Carbon Dot Nano‐Spacers in Triazine Networks for Integrated Photothermal Seawater Desalination and H2O2 Production

Carbon Energy, EarlyView.
Cyanated carbon dots (CN‐CDs) are synthesized by the hydrothermal method with carboxymethyl cellulose and cyanobenzoic acid, and CD‐CTN is obtained in situ via cyclotrimerization of CN‐CDs. CD‐CTN possesses excellent photothermal catalytic H2O2 production in seawater, and desalted H2O2 could be obtained, which demonstrates the practical application for
Xiaoxia Chen, Wenjie Tian, Huayang Zhang, Jingkai Lin, Anithadevi Sekar, Min Ge, Ruijia Wang, Hongda Guo, Shouxin Liu, Shujun Li, Jian Li, Tony D. James, Sai Kishore Ravi, Zhijun Chen   +13 more
wiley   +1 more source

MIMETIC FINITE DIFFERENCE APPROXIMATION OF FLOWS IN FRACTURED POROUS MEDIA

, 2016
We present a possible framework for the numerical simulation of flow in fractured porous media that couples mimetic finite differences for the porous matrix with a finite volume scheme for the flow in the fractures.
P. Antonietti, L. Formaggia, A. Scotti, M. Verani, Nicola Verzott   +4 more
semanticscholar   +1 more source