Results 181 to 190 of about 249,882 (332)

Orbital Elements of Six Spectroscopic Binary Stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1970
Bernard W. Bopp   +3 more
openaire   +2 more sources

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Visual Orbits of Wolf–Rayet Stars. II. The Orbit of the Nitrogen-rich Wolf–Rayet Binary WR 138 Measured with the CHARA Array

open access: yesThe Astrophysical Journal
Classical Wolf–Rayet (WR) stars are descendants of massive OB-type stars that have lost their hydrogen-rich envelopes and are in the final stages of stellar evolution, possibly exploding as Type Ib/c supernovae.
Amanda Holdsworth   +21 more
doaj   +1 more source

1D Magnetic Topological Inorganic Electrides

open access: yesAdvanced Materials, EarlyView.
A series of 1D stable magnetic inorganic electrides are identified by high throughput screening and experimental synthesis. Furthermore, these 1D inorganic electrides exhibit various applications, including spintronics, topological electronics, low work function, electron emission, and high‐performance catalysts for NH3 reductions.
Weizhen Meng   +12 more
wiley   +1 more source

On the Roles of Stellar Rotation and Binarity in NGC 2423's Main-sequence Turnoff Region

open access: yesThe Astrophysical Journal
Research has shown that many young and intermediate-age clusters (younger than ∼2 Gyr) have extended main sequences and extended main-sequence turnoffs (eMSTOs), which cannot be adequately described by a single isochrone. The reason for the extended main
Yutian Bu   +4 more
doaj   +1 more source

Spectroscopic Binaries and Collapsed Stars

open access: yesThe Astrophysical Journal, 1969
Virginia Trimble, Kip S. Thorne
openaire   +2 more sources

A Neuransistor with Excitatory and Inhibitory Neuronal Behaviors for Liquid State Machine

open access: yesAdvanced Materials, EarlyView.
The neuransistor integrates hybrid excitatory and inhibitory dynamics, enabling liquid state machine implementation. It operates via charge trapping in a two‐dimensional electron electron gas (2DEG)/TiO2−x structure and features a three‐terminal design for efficient masking functionality. Simulations demonstrate its effectiveness in predicting temporal
Woon Hyung Cheong   +6 more
wiley   +1 more source

Molecular Domino Toppling for Directed Self‐Erasing Information Transfer

open access: yesAdvanced Materials, EarlyView.
An azobenzene‐based material with unprecedented light‐pumped directional charge‐transfer reminiscent of toppling dominoes is presented. After light‐induced trans→cis forward isomerization, electron hopping occurs in a sequential and propagating manner between the cis isomers along with an electrocatalytic cis→trans backward isomerization.
Ying Li   +7 more
wiley   +1 more source

Durable Proton Exchange Membrane Based on Polymers of Intrinsic Microporosity for Fuel Cells

open access: yesAdvanced Materials, EarlyView.
A novel composite proton exchange membrane (PEM) design that leverages carboxylic acid‐functionalized polymers of intrinsic microporosity (cPIM‐1) and polyvinylpyrrolidone (PVP). Harnessing Lewis acid‐base interactions enables the development of a synergistic microporous structure that confines phosphoric acid clusters, enhancing proton conductivity ...
Xiaochen Yang   +17 more
wiley   +1 more source

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