Results 61 to 70 of about 340,959 (272)

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Infinitely many solutions for fractional Schrödinger equation with potential vanishing at infinity

open access: yesBoundary Value Problems, 2019
The paper investigates the following fractional Schrödinger equation: (−Δ)su+V(x)u=K(x)f(u),x∈RN, $$\begin{aligned} (-\Delta )^{s}u+V(x)u=K(x)f(u), \quad x\in \mathbb{R}^{N}, \end{aligned}$$ where ...
Yongzhen Yun   +3 more
doaj   +1 more source

Efficient Skip Connections-Based Residual Network (ESRNet) for Brain Tumor Classification

open access: yesDiagnostics, 2023
Brain tumors pose a complex and urgent challenge in medical diagnostics, requiring precise and timely classification due to their diverse characteristics and potentially life-threatening consequences.
Ashwini B.   +4 more
doaj   +1 more source

Scattering in a varying mass PT symmetric double heterojunction

open access: yes, 2013
We observe that the reflection and transmission coefficients of a particle within a double, PT symmetric heterojunction with spatially varying mass, show interesting features, depending on the degree of non Hermiticity, although there is no spontaneous ...
Roychoudhury, R., Sinha, Anjana
core   +1 more source

Motivic DT-invariants for the one loop quiver with potential [PDF]

open access: yes, 2011
In this paper we compute the motivic Donaldson--Thomas invariants for the quiver with one loop and any potential. As the presence of arbitrary potentials requires the full machinery of \hat(\mu)-equivariant motives, we give a detailed account of them. In
Ben Davison   +4 more
core   +3 more sources

Fractional p&q-Laplacian problems with potentials vanishing at infinity

open access: yesOpuscula Mathematica, 2020
In this paper we prove the existence of a positive and a negative ground state weak solution for the following class of fractional \(p&q\)-Laplacian problems \[\begin{aligned} (-\Delta)_{p}^{s} u + (-\Delta)_{q}^{s} u + V(x) (|u|^{p-2}u + |u|^{q-2}u)= K(x) f(u) \quad \text{ in } \mathbb{R}^{N},\end{aligned}\] where \(s\in (0, 1)\), \(1\lt p\lt q ...
openaire   +2 more sources

Nonlinear Schrödinger equations with potentials vanishing at infinity

open access: yesComptes Rendus. Mathématique, 2006
In this Note, we deal with stationary nonlinear Schrödinger equations of the form−ε2Δu+V(x)u=K(x)up,x∈RN, where V,K>0 and p>1 is subcritical. We allow the potential V to vanish at infinity and the competing function K to be unbounded. In this framework, positive ground states may not exist.
Bonheure, Denis, Van Schaftingen, Jean
openaire   +2 more sources

ON THE THERMAL PHASE STRUCTURE OF QCD AT VANISHING CHEMICAL POTENTIALS [PDF]

open access: yesInternational Journal of Modern Physics A, 2011
The hypothesis is investigated, that the thermal structure of QCD phases at and near zero chemical potentials is determined by long range coherence, inducing the gauge boson pair condensate, and its thermal extension, representing a fundamental order parameter.
Kabana, S., Minkowski, P.
openaire   +4 more sources

A note on quasilinear Schrödinger equations with singular or vanishing radial potentials

open access: yesDifferential and Integral Equations, 2022
arXiv admin note: substantial text overlap with arXiv:2202 ...
Marino Badiale   +2 more
openaire   +3 more sources

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

open access: yesAdvanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler   +10 more
wiley   +1 more source

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