Results 71 to 80 of about 34,900 (289)

Revisiting the sub- and super-solution method for the classical radial solutions of the mean curvature equation

Open Mathematics, 2020
This paper focuses on the existence and the multiplicity of classical radially symmetric solutions of the mean curvature problem:−div∇v1+|∇v|2=f(x,v,∇v)inΩ,a0v+a1∂v∂ν=0on∂Ω,\left\{\begin{array}{ll}-\text{div}\left(\frac{\nabla v}{\sqrt{1+|\nabla v{|}^{2}}
Obersnel Franco, Omari Pierpaolo
doaj   +1 more source

Four-zone reflective polarization conversion plate

, 2014
The work was partially funded by the Russian Foundation Basic Research grants ## 13-07-97008, 14-07-31092, and 14-07-97039, the Russian Federation Presidential grant for state support of young Russian scientists with Candidate's degree MK-4816.2014.2 ...
L. O'Faolain, Stafeev, S.S., Kotlyar, V.V., A. G. Nalimov, V. V. Kotlyar, S. S. Stafeev, Nalimov, A.G., O'Faolain, L.   +7 more
core   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

DETECTION OF CITRUS TREES FROM UAV DSMS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
This paper presents an automated approach to detect citrus trees from digitals surface models (DSMs) as a single source. The DSMs in this study are generated from Unmanned Aerial Vehicles (UAVs), and the proposed approach first considers the symmetric ...
A. O. Ok, A. Ozdarici-Ok
doaj   +1 more source

Nonlinear Magnetostatic Finite-Element Formulation for Models with Radial Symmetry

, 2014
This paper discusses the implementation of nonlinear material properties in a 2-D magnetostatic finite-element solver for radially symmetric models. It is shown that, when saturation occurs, the particular dependence of the magnetic vector potential on ...
Gielen, Georges, Pissoort, Davy, Vanoost, Dries, Peuteman, Joan, De Gersem, Herbert   +4 more
core   +1 more source

Triple Junctions as Dislocation‐Like Defects: The Role of Grain Boundary Crystallography Revealed by Experiment and Atomistic Simulation

Advanced Engineering Materials, EarlyView.
Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink, Saba Saood, Peter Schweizer, Jörg Neugebauer, Gerhard Dehm   +4 more
wiley   +1 more source

Self-similar solutions for a superdiffusive heat equation with gradient nonlinearity

Electronic Journal of Differential Equations, 2016
This article studies the existence, stability, self-similarity and symmetries of solutions for a superdiffusive heat equation with superlinear and gradient nonlinear terms with initial data in new homogeneous Besov-Morrey type spaces.
Marcelo Fernandes de Almeida, Arlucio Viana   +1 more
doaj  

Generation of nondiffracting radial carpet-lattice beams by using an extended Durnin’s setup

Journal of the European Optical Society-Rapid Publications
In the past, the researchers have generated radial carpet beams, a type of 2D optical lattice with polar symmetry. However, the classical radial carpet beams expand slowly as they propagate, that is, they are not nondiffracting beams.
Gong Ning, Zhang Bo, Ye Youxiang, Fan Changjiang, Liu Yefeng, Ren Zhijun   +5 more
doaj   +1 more source

Quasi-symmetry and the nature of radial turbulent transport in quasi-poloidal stellarators [PDF]

, 2016
Quasi-symmetric configurations have a better neoclassical confinement compared to that of standard stellarators. The reduction of the neoclassical viscosity along the direction of quasi-symmetry should facilitate the self-generation of zonal flows and ...
Tribaldos, V., Newman, D., J. M. Reynolds-Barredo, P. Xanthopoulos, Sanchez, R., R. Sanchez, Alcuson, J., Reynolds-Barredo, J., T. Goerler, Alcusón, J.A., Reynolds-Barredo, J.M., A. Bustos, Xanthopoulos, P., Goerler, T., Görler, T., Newman, D.E., Bustos, A., J. A. Alcuson, D. E. Newman, V. Tribaldos   +19 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source