Results 81 to 90 of about 3,556 (304)

Solution‐Processed Thin‐Film Transistors With Tunable Temporal Dynamics for Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐processed CNT and CNT/P3HT ion‐gated transistors exhibit materials‐defined synaptic timescales: fast CNT devices for high‐frequency spiking and slow hybrid devices for temporal integration. Embedding these dynamics into coupled reservoir‐computing and spiking neural network simulations reveals that a Hybrid‐Reservoir / CNT‐SNN architecture ...
Kevin Schnittker   +5 more
wiley   +1 more source

Orbits and Dynamical Masses for Six Binary Systems in the Hyades Cluster

open access: yesThe Astrophysical Journal
We report long-baseline interferometric observations with the CHARA Array that resolve six previously known double-lined spectroscopic binary systems in the Hyades cluster, with orbital periods ranging from 3 to 358 days: HD 27483, HD 283882, HD 26874 ...
Guillermo Torres   +10 more
doaj   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

open access: yesAdvanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He   +5 more
wiley   +1 more source

The Pleiades Binary Fraction Revisited

open access: yesThe Astronomical Journal
One of the nearest and best-studied open clusters, the Pleiades is an important cornerstone of stellar astrophysics. Despite its role as a reference coeval stellar population, its multiplicity properties are still not well characterized. The combined use
Dmitry Chulkov
doaj   +1 more source

EUVE J2244-15.9: a new spectroscopic binary

open access: yes, 2002
We report the detection of a new late-type spectroscopic binary, EUVE J224415.9 (HD 215341) using the 0.6 meter Coude auxiliary telescope and Hamilton echelle spectrograph at Lick observatory.Information Bulletin on Variable Stars 5281(1).
Stephane Vennes   +2 more
core  

Determination of the mass-ratio distribution, I: single-lined spectroscopic binary stars [PDF]

open access: yes, 1992
For single-lined spectroscopic binary stars (sbi), the mass ratio q = Msec=Mprim is calculated from the mass function f(m), which is determined from observations.
Hogeveen, S.J.
core  

Spectroscopic confirmation of the binary nature of the hybrid pulsator KIC 5709664 found with the frequency modulation method [PDF]

open access: yes, 2019
Contains fulltext : 204325.pdf (Author’s version preprint ) (Open Access)We started a program to search for companions around hybrid δ Sct/γ Dor stars with the frequency modulation method using Kepler data.
Southworth, J.   +49 more
core   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

open access: yesAdvanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv   +20 more
wiley   +1 more source

New Symbiotic Stars or Candidates in LAMOST Low-resolution Spectra

open access: yesThe Astrophysical Journal
Symbiotic stars are among the most important binary systems for studying binary star interactions and Type Ia supernova progenitors. Based on the unique observational characteristics of symbiotic stars—strong H I and He I emission lines, giant spectral ...
Yabing Zhao   +5 more
doaj   +1 more source

Toward Fast Proton Shuttling in Acidic Oxygen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
This review establishes proton transfer dynamics as a descriptor governing acidic OER activity, moving beyond the kinetic constraints derived from the proton coupled electron transfer. We discuss how deprotonation governs classical mechanisms, including adsorbate evolution mechanism (AEM), lattice oxygen mechanism (LOM) and oxide path mechanism (OPM ...
Ashish Gaur   +3 more
wiley   +1 more source

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