Results 61 to 70 of about 66,246 (264)

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

open access: yesAdvanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li   +7 more
wiley   +1 more source

Irreducible collineation groups with two orbits forming an oval

open access: yesJournal of Combinatorial Theory, Series A, 2007
Let \(\pi\) be a finite projective plane of odd order \(n\) admitting an irreducible collineation group \(G\) of even order that stabilizes an oval \(\Omega\) and induces two orbits on \(\Omega\), on one of which it acts primitively. Then the authors show that this orbit is a conic in a \(G\)-invariant Desarguesian subplane of order \(q\). The examples
Angela Aguglia   +2 more
openaire   +6 more sources

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

open access: yesAdvanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar   +9 more
wiley   +1 more source

Donor‐Engineered Chiral Indium–Salen Complexes for Tunable Circularly Polarized Luminescence

open access: yesAdvanced Functional Materials, EarlyView.
Chiral indium–salen complexes bearing electronically and structurally diverse donor substituents are presented as modular main‐group luminophores exhibiting tunable blue‐to‐green circularly polarized luminescence. Donor engineering systematically controls frontier‐orbital distribution, intraligand charge transfer, and excited‐state relaxation ...
Haein Kim   +14 more
wiley   +1 more source

A Modified Method of Forming Support Stump for Eye Prosthesis

open access: yesОфтальмохирургия, 2009
The paper reviews briefly possible causes and prophylaxis of the orbital implant exposition. The work was aimed at development of improved method of forming support stump for eye prosthesis. The technique of the surgery is described in detail.
I.A. Filatova, Kharb Ali Khabib
doaj  

An ab initio study of the mechanism of the cycloaddition reaction forming bicyclic compounds between vinylidene (H2C=C:) and ethylene [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
The mechanism of the cycloaddition reaction forming a bicyclic compounds between singlet vinylidene (H2C=C:) and ethylene was investigated using the CCSD(T)//MP2/6-31G* method. From the potential energy profile, it can be predicted that this reaction has
YONGQING LI, ZHENXIA LIAN, XIUHUI LU
doaj  

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

open access: yesAdvanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll   +17 more
wiley   +1 more source

THE ORBITS OF PRIMITIVE REPRESENTATIONS OF A QUADRATIC FORM BY A QUADRATIC FORM

open access: yesOsaka Journal of Mathematics
We study the primitive integral representations of a quadratic form in n − 1 variables by a reduced quadratic form in n variables. Our aim is to describe the orbits of such representations under the action of the unit group of the reduced form. That description provides the mass of the representations, considered by Shimura.
openaire   +3 more sources

Electronic metal-support interaction modulates Cu electronic structures for CO2 electroreduction to desired products

open access: yesNature Communications
In this work, the Cu single-atom catalysts (SACs) supported by metal-oxides (Al2O3-CuSAC, CeO2-CuSAC, and TiO2-CuSAC) are used as theoretical models to explore the correlations between electronic structures and CO2RR performances.
Yong Zhang   +12 more
doaj   +1 more source

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