Results 31 to 40 of about 8,668,074 (299)

Analysis of the fractional relativistic polytropic gas sphere

Scientific Reports, 2023
Many stellar configurations, including white dwarfs, neutron stars, black holes, supermassive stars, and star clusters, rely on relativistic effects. The Tolman–Oppenheimer–Volkoff (TOV) equation of the polytropic gas sphere is ultimately a hydrostatic ...
Mohamed S. Aboueisha, Mohamed I. Nouh, Emad A. -B. Abdel-Salam, Tarek M. Kamel, M. M. Beheary, Kamel A. K. Gadallah   +5 more
doaj   +1 more source

Intensification in heat transfer due to hybrid nanoparticles embedded in sodium alginate

Case Studies in Thermal Engineering, 2021
In this study, we have addressed the flow of hybrid nanofluid (Cu−Al2O3-Sodium Alginate), nanofluid (Cu-Sodium Alginate), and nanofluid (Al2O3-Sodium Alginate). Flow is because of the heated boundary of the channel and its different movements.
Nadeem Ahmad Sheikh, Dennis Ling Chuan Ching, Ilyas Khan, Hamzah Sakidin   +3 more
doaj   +1 more source

Brain volumetric and microstructural correlates of executive and motor performance in aged rhesus monkeys

Frontiers in Aging Neuroscience, 2012
The aged rhesus macaque exhibits brain atrophy and behavioral deficits similar to normal aging in humans. Here we studied the association between cognitive and motor performance and anatomic and microstructural brain integrity measured with 3T magnetic ...
Aadhavi eSridharan, Aadhavi eSridharan, Auriel A Willette, Auriel A Willette, Auriel A Willette, Barbara B Bendlin, Barbara B Bendlin, Barbara B Bendlin, Andrew L Alexander, Christopher L Coe, Mary Lou Voytko, Ricki J Colman, Joseph W Kemnitz, Joseph W Kemnitz, Richard H Weindruch, Richard H Weindruch, Sterling C Johnson, Sterling C Johnson, Sterling C Johnson   +18 more
doaj   +1 more source

Fractional variational problems depending on indefinite integrals [PDF]

, 2012
We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral.
Pooseh, Shakoor, Pooseh, S., Almeida, R., Almeida, Ricardo, Delfim F.M. Torres, Shakoor Pooseh, Torres, D.F.M., Ricardo Almeida, Torres, Delfim F. M.   +8 more
core   +1 more source

Myelin volume fraction imaging with MRI

NeuroImage, 2018
MRI is a valuable tool to assess myelin during development and demyelinating disease processes. While multiexponential T2 and quantitative magnetization transfer measures correlate with myelin content, neither provides the total myelin volume fraction.
Kathryn L. West, Nathaniel D. Kelm, Robert P. Carson, Daniel F. Gochberg, Kevin C. Ess, Mark D. Does   +5 more
openaire   +3 more sources

Advances in Fractional-Order Neural Networks, Volume II

Fractal and Fractional, 2023
Fractional-order neural network models have become an active research subject and have attracted increasing attention in many fields [...]
Ivanka Stamova, Gani Stamov, Xiaodi Li
doaj   +1 more source

Research on Slot-pole Combination in High-power Direct-drive PM Vernier Generator for Fractional Frequency Transmission System

CES Transactions on Electrical Machines and Systems, 2022
Offshore wind energy is an important part of clean energy, and the adoption of wind energy to generate electricity will contribute to the implementation of the carbon peaking and carbon neutrality goals.
Zhidong Yuan, Shaofeng Jia, Deliang Liang, Xiuli Wang, Yong Yang   +4 more
doaj   +1 more source

Nonlocal and Fractional Operators

, 2021
The purpose of this volume is to explore new bridges between different research areas involved in the theory and applications of the fractional calculus. In particular, it collects scientific and original contributions to the development of the theory of
Luisa Beghin, Roberto Garrappa, Francesco Mainardi   +2 more
core   +1 more source

Finite volume element method with the WSGD formula for nonlinear fractional mobile/immobile transport equations

Advances in Difference Equations, 2020
In this article, a finite volume element method with the second-order weighted and shifted Grünwald difference (WSGD) formula is proposed and studied for nonlinear time fractional mobile/immobile transport equations on triangular grids. By using the WSGD
Jie Zhao, Zhichao Fang, Hong Li, Yang Liu   +3 more
doaj   +1 more source

Umbilical cord serum insulin‐like growth factor‐1 is associated with growth of fetal fractional limb volume: A prospective study

Acta Obstetricia et Gynecologica Scandinavica
Introduction Insulin‐like growth factor‐1 (IGF‐1) promotes protein and carbohydrate metabolism, which consequently affects birth weight. Fetal fractional limb volume has been proposed as a useful parameter for predicting birth weight and quantifying ...
Satoru Ikenoue, Junko Tamai, Keisuke Akita, Toshimitsu Otani, Marie Fukutake, Yoshifumi Kasuga, Mamoru Tanaka   +6 more
doaj   +1 more source