Results 41 to 50 of about 61,432 (313)

Nonexistence of stable solutions to quasilinear elliptic equations on Riemannian manifolds

open access: yes, 2016
We prove nonexistence of nontrivial, possibly sign changing, stable solutions to a class of quasilinear elliptic equations with a potential on Riemannian manifolds, under suitable weighted volume growth conditions on geodesic ...
Monticelli, Dario D.   +2 more
core   +1 more source

Multipolar Resonances in Electro‐Optic Metasurfaces with Moderate Refractive Index

open access: yesAdvanced Photonics Research, EarlyView.
Electro‐optic nanoantennas with moderate refractive indices of 2.3 to 3.0 are numerically shown to sustain strong multipolar resonances, enabling efficient light confinement and EO tuning. Multipolar modes of even parity are most sensitive to variations in the refractive index.
Viktoriia E. Babicheva   +1 more
wiley   +1 more source

Generalized $1$-harmonic Equation and The Inverse Mean Curvature Flow

open access: yes, 2010
We introduce and study generalized $1$-harmonic equations (1.1). Using some ideas and techniques in studying $1$-harmonic functions from [W1] (2007), and in studying nonhomogeneous $1$-harmonic functions on a cocompact set from [W2, (9.1)] (2008), we ...
Ai-Nung Wang   +20 more
core   +1 more source

Nonexistence of Asymptotic Observables [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
Strong asymptotic limits of all Heisenberg observables exist only for trivial Hamiltonians.
openaire   +2 more sources

Nanoscopic Mapping of the Extracellular Space in Amyloid Plaque‐rich Cortex

open access: yesAdvanced Science, EarlyView.
The extracellular space and diffusion around amyloid plaques are examined using shadow imaging and single‐particle tracking. Increased diffusivity is found near plaques, extracellular matrix alterations, and plaque core penetrability that varies with amyloid phenotype.
Juan Estaún‐Panzano   +11 more
wiley   +1 more source

Positive periodic solutions of nonlinear first-order functional difference equations with a parameter

open access: yesElectronic Journal of Differential Equations, 2011
We obtain the existence and multiplicity of positive $T$-periodic solutions for the difference equations $$ Delta x(n)=a(n,x(n))-lambda b(n)f(x(n-au(n))) $$ and $$ Delta x(n)+a(n,x(n))=lambda b(n)f(x(n-au(n))), $$ where $f(cdot)$ may be singular
Yanqiong Lu
doaj  

Advancing Circularity in Battery Systems for Renewable Energy: Technologies, Barriers, and Future Directions

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This article examines strategies to enhance the sustainability of battery systems in renewable energy through circular economy principles. It discusses recycling techniques, modular battery design, second‐life utilization, and regulatory frameworks. Key barriers include inadequate infrastructure and regulatory gaps.
Williams Chibueze Munonye   +5 more
wiley   +1 more source

Liouville-type theorems for elliptic Schrödinger systems associated with copositive matrices

open access: yesNetworks and Heterogeneous Media, 2012
We study non-cooperative, multi-component elliptic Schrödinger systems arising in nonlinear optics and Bose-Einstein condensation phenomena.We here reconsider the more delicate case of systems of $m ≥ 3$ components.We prove a Liouville-type nonexistence ...
Philippe Souplet
doaj   +1 more source

Do outgrower schemes enhance technology adoption and productivity? Evidence from maize farmers in Northern Ghana

open access: yesAgribusiness, EarlyView.
Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley   +1 more source

Czy istnienie może być lepsze albo gorsze od nieistnienia? Część I: Ustalanie wartości w ramach dobrostanu

open access: yesAnaliza i Egzystencja, 2016
CAN EXISTENCE BE BETTER OR WORSE THAN NONEXISTENCE? PART I The aim of this paper is to examine whether there is any possibility to compare thevalue of someone’s existence with his nonexistence.
Mirosław Rutkowski
doaj   +1 more source

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