Results 111 to 120 of about 127,882 (296)

Physicochemical Necessary and Sufficient Conditions for Superferromagnetism in High‐Resolution Magnetic Particle Imaging

open access: yesSmall, EarlyView.
This study investigates how strong dipole–dipole coupling in linear chains of synthesized superparamagnetic nanoparticles induces superferromagnetism, enhancing Magnetic Particle Imaging (MPI) resolution. A positive feedback model predicts key magnetic behaviors, such as coercivity, and guides nanoparticle synthesis.
Chinmoy Saayujya   +13 more
wiley   +1 more source

On New Inequalities via Riemann-Liouville Fractional Integration

open access: yesAbstract and Applied Analysis, 2012
We extend the Montgomery identities for the Riemann-Liouville fractional integrals. We also use these Montgomery identities to establish some new integral inequalities.
Mehmet Zeki Sarikaya, Hasan Ogunmez
doaj   +1 more source

Vortex Ratchet Effect in a NbC Strip With a Periodic Edge Indentation

open access: yesSmall Methods, EarlyView.
The image shows the nanoprinting of a superconducting nanostructure using focused ion beam induced deposition (top left), overlaid with numerically simulated patterns of current and magnetic flux quanta (bottom). An edge indentation breaks spatial symmetry, modifying the current density distribution and inducing nonreciprocal magnetic flux dynamics the
F. Porrati   +4 more
wiley   +1 more source

The Discouraging Effect of Overconfidence

open access: yesSouthern Economic Journal, EarlyView.
ABSTRACT Overconfidence is often viewed as encouraging entrepreneurs and CEOs to follow risky strategies such as entering new markets, engaging in innovation, or pursuing mergers and acquisitions. While such undertakings can generate excess returns and profits, overconfidence is frequently offered as an explanation for why so many business ventures ...
Cary Deck, Klajdi Bregu
wiley   +1 more source

The Existence of Positive Solutions for a p-Laplacian Tempered Fractional Diffusion Equation Using the Riemann–Stieltjes Integral Boundary Condition

open access: yesMathematics
In this paper, we focus on the existence of positive solutions for a class of p-Laplacian tempered fractional diffusion equations involving a lower tempered integral operator and a Riemann–Stieltjes integral boundary condition. By introducing certain new
Lishuang Li   +3 more
doaj   +1 more source

Pseudoconformal Thermal Metamaterials Enabled by Thickness Engineering in a Single Material

open access: yesSmall Structures, EarlyView.
This work presents a geometric approach for thermal manipulation using confocally elliptical core–shell structures. Isotropic medium parameters for regulating the magnitude of the temperature gradient are obtained through pseudoconformal mapping and then approximated in sample fabrication via single‐material thickness engineering, avoiding the need for
Gaole Dai   +3 more
wiley   +1 more source

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