Results 21 to 30 of about 253,935 (294)

Power Generation from Concentration Gradient by Reverse Electrodialysis in Anisotropic Nanoporous Anodic Aluminum Oxide Membranes

Energies, 2020
In this study, reverse electrodialysis power generation using an anisotropic anodic aluminum oxide membrane with nanopores of two different pore diameters is proposed and experimentally investigated for the first time.
Yunhyun Lee, Hyun Jung Kim, Dong-Kwon Kim   +2 more
doaj   +1 more source

Formation Mechanism of Rounded SiGe-Etch Front in Isotropic SiGe Plasma Etching for Gate-All-Around FETs

IEEE Journal of the Electron Devices Society, 2021
We investigated the formation mechanism of a rounded silicon-germanium (SiGe)-etch front (rounding) in gate-all-around field-effect transistor (GAA-FET) manufacturing.
Yu Zhao, Taku Iwase, Makoto Satake, Hirotaka Hamamura   +3 more
doaj   +1 more source

Isotropic and anisotropic bouncing cosmologies in Palatini gravity [PDF]

Physical Review D, 2010
We study isotropic and anisotropic (Bianchi I) cosmologies in Palatini $f(R)$ and $f(R,R_{ }R^{ })$ theories of gravity and consider the existence of non-singular bouncing solutions in the early universe. We find that all $f(R)$ models with isotropic bouncing solutions develop shear singularities in the anisotropic case.
Olmo, Gonzalo J., Barragán, Carlos
openaire   +3 more sources

Compact anisotropic models in general relativity by gravitational decoupling

European Physical Journal C: Particles and Fields, 2018
Durgapal’s fifth isotropic solution describing spherically symmetric and static matter distribution is extended to an anisotropic scenario. To do so we employ the gravitational decoupling through the minimal geometric deformation scheme.
E. Morales, Francisco Tello-Ortiz
doaj   +1 more source

Switch isotropic/anisotropic wettability via dual-scale rods

AIP Advances, 2014
It is the first time to demonstrate the comparison of isotropic/anisotropic wettability between dual-scale micro-nano-rods and single-scale micro-rods.
Yang He, Chengyu Jiang, Shengkun Wang, Zhibo Ma, Weizheng Yuan   +4 more
doaj   +1 more source

Enforcing the non-negativity constraint and maximum principles for diffusion with decay on general computational grids [PDF]

, 2010
In this paper, we consider anisotropic diffusion with decay, and the diffusivity coefficient to be a second-order symmetric and positive definite tensor.
Arnold, Barber, Boyd, Braess, Brezzi, Brezzi, Brezzi, Brezzi, Brezzi, Brezzi, Burman, Chadwick, Christie, Ciarlet, Ciarlet, Droniou, Eigestad, Fraenkel, Gilbarg, Herrera, Hughes, Hughes, Hyman, Höhn, Karnadakis, Karátson, Karátson, Keilegavlen, Korotov, Kuzmin, Kuznetsov, Ladyzhenskaya, Le Potier, Lipnikov, Lipnikov, Lipnikov, Liska, Luenberger, Masud, McOwen, Mlacnik, Morton, Nakshatrala, Nakshatrala, Nedelec, Nedelec, Nocedal, Nordbotten, Patankar, Protter, Pucci, Quarteroni, Raviart, Saad, Shashkov, Shewchuk, Strikwerda, Tikhonov, Trudinger, Vanselow, Varga, Varga, Vejchodsky, Yanik, Yanik, Yuan   +65 more
core   +1 more source

Minimal Geometric Deformation: the inverse problem

European Physical Journal C: Particles and Fields, 2018
In this paper we show that any static and spherically symmetric anisotropic solution of the Einstein field equations can be thought as a system sourced by certain deformed isotropic system in the context of Minimal Geometric Deformation-decoupling ...
Ernesto Contreras
doaj   +1 more source

Anisotropic Characteristics of Turbulence Dissipation in Swirling Flow: A Direct Numerical Simulation Study

Advances in Mathematical Physics, 2015
This study investigates the anisotropic characteristics of turbulent energy dissipation rate in a rotating jet flow via direct numerical simulation. The turbulent energy dissipation tensor, including its eigenvalues in the swirling flows with different ...
Xingtuan Yang, Nan Gui, Gongnan Xie, Jie Yan, Jiyuan Tu, Shengyao Jiang   +5 more
doaj   +1 more source

Identification and parameter estimation for electrical anisotropy in two-dimensional magnetotelluric models

Frontiers in Earth Science
When the subsurface media contain electrical anisotropic structure, magnetotelluric isotropic inversion fails to recover the electrical anisotropic structure and may distort the image of isotropic structures. Besides, due to the diversity and uncertainty
Xiaojie Ji, Zidong Xu, Zejiao Huang, Wei Zhao, Ying Liu   +4 more
doaj   +1 more source

Model of Forming Isotropic and Anisotropic Graphite Under High Temperatures and Fluences Neutron Irradiation

East European Journal of Physics, 2019
A model is proposed for describing the shape change of isotropic and anisotropic graphite under the influence of high temperatures and high neutron radiation fluences. The model is based on a new approach, which uses the following provisions: description
Mykola P. Odeychuk, Victor I. Tkachenko, Leonid A. Bulavin, Boris V. Borts, Stella I. Skoromnaya   +4 more
doaj   +1 more source