Results 81 to 90 of about 6,982,939 (355)

Computational Modeling of Reticular Materials: The Past, the Present, and the Future

open access: yesAdvanced Materials, EarlyView.
Reticular materials are advanced materials with applications in emerging technologies. A thorough understanding of material properties at operating conditions is critical to accelerate the deployment at an industrial scale. Herein, the status of computational modeling of reticular materials is reviewed, supplemented with topical examples highlighting ...
Wim Temmerman   +3 more
wiley   +1 more source

Norm statement considered harmful: comment on ‘evolution of unconditional dispersal in periodic environments’

open access: yesJournal of Biological Dynamics, 2016
The mathematical symbol for the norm, which is heavily overloaded with multiple definitions that have both universal and specific properties, lends itself to confusion.
Lee Altenberg
doaj   +1 more source

Multiple positive solutions for boundary value problems of second-order differential equations system on the half-line

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
In this paper, we study the existence of positive solutions for boundary value problems of second-order differential equations system with integral boundary condition on the half-line.
Shouliang Xi, Mei Jia, Huipeng Ji
doaj   +1 more source

Liouville theorems for harmonic map heat flow along ancient super Ricci flow via reduced geometry [PDF]

open access: yesarXiv, 2021
We study harmonic map heat flow along ancient super Ricci flow, and derive several Liouville theorems with controlled growth from Perelman's reduced geometric viewpoint. For non-positively curved target spaces, our growth condition is sharp. For positively curved target spaces, our Liouville theorem is new even in the static case (i.e., for harmonic ...
arxiv  

Inorganic Dielectric Materials Coupling Micro‐/Nanoarchitectures for State‐of‐the‐Art Biomechanical‐to‐Electrical Energy Conversion Devices

open access: yesAdvanced Materials, EarlyView.
Biomechanical‐to‐electrical energy conversion devices are uniquely suited for self‐driven physiological information monitoring and powering human–computer interaction systems. These devices based on micro‐/nanoarchitectured inorganic dielectric materials (MNIDMs) have shown ultrahigh electromechanical performance and thus great potential for practical ...
Jia‐Han Zhang   +12 more
wiley   +1 more source

Spin‐State Manipulation of Atomic Manganese Center by Phosphide‐Support Interactions for Enhanced Oxygen Reduction

open access: yesAdvanced Materials, EarlyView.
The electronic configuration of Mn single‐atom sites is regulated from low‐spin to high‐spin states by embedding well‐defined molybdenum phosphide nanocrystals nearby (MoP@MnSAC‐NC). The electronic phosphide‐support interaction between MoP and Mn single atoms drives the electronic structure transition in Mn sites from low‐spin to high‐spin states, and ...
Zuyang Luo   +9 more
wiley   +1 more source

Existence of periodic solutions for subquadratic discrete system involving the p-Laplacian

open access: yesElectronic Journal of Differential Equations, 2017
An existence theorem on periodic solution is established for a class of nonautonomous discrete system involving the p-Laplacian under a subquadratic growth condition. The conclusion is based on saddle point theorem and variational methods.
Qin Jiang, Shang Ma, Zhihua Hu
doaj  

Existence and multiplicity results for some Lane–Emden elliptic systems: Subquadratic case

open access: yesAdvances in Nonlinear Analysis, 2015
We study the nonlinear elliptic system of Lane–Emden type -Δu = sgn(v) |v|p-1 in Ω, -Δv = f(x,u) in Ω, u = v = 0 on ∂Ω, where Ω is an open bounded subset of ℝN, N ≥ 2, p > 1 and f : Ω × ℝ → ℝ is a Carathéodory function satisfying suitable growth ...
Barile Sara, Salvatore Addolorata
doaj   +1 more source

Upper and lower solutions for BVPs on the half-line with variable coefficient and derivative depending nonlinearity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
This paper is concerned with a second-order nonlinear boundary value problem with a derivative depending nonlinearity and posed on the positive half-line. The derivative operator is time dependent.
Smail Djebali, S. Zahar
doaj   +1 more source

Multiplicity of periodic solutions for weakly coupled parametrized systems with singularities

open access: yesElectronic Research Archive, 2023
We prove the existence of multiple periodic solutions for weakly coupled parametrized systems with a singularity of repulsive type at the origin and linear growth at infinity.
Shuang Wang, Chunlian Liu
doaj   +1 more source

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