Results 31 to 40 of about 96,007 (248)

Multi‐Scale Modeling of a 3D Soft Magnetoelectric Patch for Wireless Nerve Stimulation

open access: yesAdvanced Materials Interfaces, EarlyView.
Core‐shell, magnetoelectric nanoparticles (MENPs) can serve as wireless electric nano‐sources, thanks to their ability to generate high levels of electricity, when stimulated by a human‐safe external magnetic field. By combining MENPs with soft, biocompatible polymeric matrices and optimizing its composite configuration and electrical behavior via ...
Giulia Suarato   +6 more
wiley   +1 more source

Isometry-invariant geodesics and the fundamental group, II

open access: yes, 2017
We show that on a closed Riemannian manifold with fundamental group isomorphic to $\mathbb{Z}$, other than the circle, every isometry that is homotopic to the identity possesses infinitely many invariant geodesics.
Macarini, Leonardo, Mazzucchelli, Marco
core   +2 more sources

Wafer‐Scale Synthesis of Topological Insulator Sb2Te3 Thin Films

open access: yesAdvanced Materials Interfaces, EarlyView.
This work demonstrates how the topologically protected conduction in Sb2Te3 thin films can be extended from few‐mm2 samples’ area up to larger areas of several cm2 Si(111) wafers. The reported findings represent a breakthrough for the future technology scale‐up of topological insulators for applications such as spintronics, thermoelectrics, and quantum
Ali Shafiei   +12 more
wiley   +1 more source

Packing densities of layered permutations and the minimum number of monotone sequences in layered permutations

open access: yes, 2016
In this paper, we present two new results of layered permutation densities. The first one generalizes theorems from H\"{a}st\"{o} (2003) and Warren (2004) to compute the permutation packing of permutations whose layer sequence is~$(1^a,\ell_1,\ell_2 ...
Bastos, Josefran de Oliveira   +1 more
core   +1 more source

The symbolic model for algebra : functions and mechanisms [PDF]

open access: yes, 2010
The symbolic mode of reasoning in algebra, as it emerged during the sixteenth century, can be considered as a form of model-based reasoning. In this paper we will discuss the functions and mechanisms of this model and show how the model relates to its ...
A. Heeffer   +6 more
core   +2 more sources

Direct Evidence of the Presence of Hybrid Charge Transfer State in a Perovskite Nanocrystal‐Polythiophene Blend Solid State Film

open access: yesAdvanced Materials Interfaces, EarlyView.
The photophysical properties of a hybrid solid state film, composed of a conjugated polymer and CsPbBr3 (zwitterionic sulfobetaine ‐capped) perovskite nanocrystals (NCs), are investigated by ultrafast spectroscopy and morphological characterization. The transient spectroscopy highlights the presence at the interface of a charge transfer state, and the ...
Tersilla Virgili   +11 more
wiley   +1 more source

Hyper-Dual Leonardo Numbers

open access: yes, 2022
In the present paper, the hyper-dual Leonardo numbers will be introduced with the use of Leonardo numbers. Some algebraic properties of these numbers such as recurrence relation, generating function, Catalan’s and Cassini’s identity, Binet’s formula, sum formulas will also be obtained.
ÖZKALDI KARAKUŞ, Sıddıka   +2 more
openaire   +2 more sources

Durable Bio‐Based Nanocomposite Coating on Urinary Catheters Prevents Early‐Stage CAUTI‐Associated Pathogenicity

open access: yesAdvanced Materials Interfaces, EarlyView.
A stable bio‐based nanocomposite coating for urinary catheters is developed using a simple, environmentally‐friendly sonochemical process. The coating, integrating antimicrobial, antibiofilm, and antioxidant properties, effectively tackled multiple early‐stage pathogenic factors associated with catheter‐associated urinary tract infections.
Antonio Puertas‐Segura   +7 more
wiley   +1 more source

Sol–Gel Thin Films for the Protection of Ancient Glass Artifacts: A Performance Comparison Between Inorganic and Hybrid Silica Compositions

open access: yesAdvanced Materials Interfaces, EarlyView.
This study explores the development of sol–gel coatings for archaeological glass conservation. By formulating silica‐based solutions with low acid concentrations and applying them via dip coating, protective films are prepared at room temperature. Analysis reveals that hybrid coatings with methyl and octyl groups provide superior protection against ...
Stefano Centenaro   +5 more
wiley   +1 more source

Convexity properties of gradient maps associated to real reductive representations

open access: yes, 2019
Let G be a connected real reductive Lie group acting linearly on a finite dimensional vector space V over R. This action admits a Kempf-Ness function and so we have an associated gradient map.
Biliotti, Leonardo
core   +1 more source

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