Results 161 to 170 of about 64,576 (280)

Boundary value problems of fractional differential equations with nonlocal and integral boundary conditions

open access: yesInternational Journal of Advanced Engineering Research and Science, 2021
John Fiifi Essel   +2 more
openaire   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, Volume 28, Issue 3, 4 February 2026.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Existence results for nonlocal multivalued boundary-value problems

open access: yesElectronic Journal of Differential Equations, 2006
In this paper we establish some existence results for nonlocal multivalued boundary-value problems. Our approach is based on existence results for operator inclusions involving a suitable closed-valued multifunction; see [2,3].
Pasquale Candito, Giovanni Molica Bisci
doaj  

Ab Initio Calculation of Energy Gap and Optical Gap of Organic Semiconductors PTCDA and PDI

open access: yesChemPhysChem, Volume 27, Issue 3, February 2026.
We benchmark electronic structure methods for predicting energy and optical gaps of three organic semiconductors from molecules to crystals. GW is most reliable for crystalline energy levels, while single‐molecule time‐dependent density functional theory with a polarizable continuum model delivers remarkable accuracy for some quantities at a much lower
Chieh‐Min Hsieh   +4 more
wiley   +1 more source

Customized Scattering‐Robust 3D Speckle Correlation for Improved Resolution and Imaging Depth in Scattering Tissue

open access: yesLaser &Photonics Reviews, Volume 20, Issue 3, 5 February 2026.
A scattering‐robust 3D speckle customization method is proposed to enhance both resolution and imaging depth in scattering tissue. Applied to light‐field microscopy (LFM), it improves 3D resolution by over twofold under strong optical scattering. In wide‐field fluorescence imaging, it enables a substantial improvement in imaging depth, allowing imaging
Yue Xing   +4 more
wiley   +1 more source

Fast 3D UTE in vivo T1 and T2*$$ {\mathrm{T}}_2^{\ast } $$ mapping of fast relaxing knee tissues at 3 T

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 2, Page 693-705, February 2026.
Abstract Purpose UTE MR imaging captures quantitative signals in fast‐relaxing tissues, enabling anatomical visualization and quantitative assessment of T1 and T2*$$ {\mathrm{T}}_2^{\ast } $$ relaxation times. However, the clinical application of quantitative UTE MRI is limited by long acquisition times.
Maik Rothe   +7 more
wiley   +1 more source

Solvability of a nonlocal problem for a hyperbolic equation with integral conditions

open access: yesElectronic Journal of Differential Equations, 2017
We study a nonlocal problem with integral conditions for a hyperbolic equation two independent variables. By introducing additional functional parameters, we investigated the solvability and construction of approximate solutions.
Anar T. Assanova
doaj  

Chemically Accurate Prediction of CO2 Adsorption Thermodynamics in Metal–Organic Framework CALF‐20: Complementary Ab Initio Modeling and Grand Canonical Monte Carlo Simulations

open access: yesSmall Structures, Volume 7, Issue 2, February 2026.
Ab initio thermodynamics and GCMC simulations reveal a cooperative two‐step CO2 pore filling mechanism in CALF‐20. The study captures adsorption energetics and loading‐dependent structural changes, reproducing experimental isotherms with chemically accurate predictions.
Kaido Sillar   +3 more
wiley   +1 more source

Existence and multiplicity of positive radial solutions to nonlocal boundary-value problems in exterior domains

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we consider nonlocal p-Laplacian boundary-value problems with integral boundary conditions and a non-negative real-valued boundary condition as a parameter.
Chan-Gyun Kim, Eun Kyoung Lee
doaj  

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