Results 21 to 30 of about 45,723 (152)

Bacillus subtilis Mobilizes Phosphorus by Reshaping P Pools, Sorption, and Enzyme Activities

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Low phosphorus (P) availability constrains crop production in saline‐alkaline soils of Xinjiang, China. We tested whether Bacillus subtilis (B. subtilis) mobilizes soil P by altering P fractions, sorption–desorption, and P‐cycling enzymes in a saline‐alkaline cotton soil. Under conventional fertilization, B. subtilis was applied at 0 (B0), 15 (
Haiping Xie   +5 more
wiley   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

open access: yesLaser &Photonics Reviews, EarlyView.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang   +3 more
wiley   +1 more source

High Yield Physics Video Series (Hi-Phy) Pilot for Radiation Oncology Trainees [PDF]

open access: bronze, 2020
Gabrielle W. Peters   +8 more
openalex   +1 more source

Synergistic Effects of Phenolic Resin and Polymer Architecture on Crosslink Density and Damping in Poly(Epichlorohydrin‐Co‐Ethylene Oxide‐Co‐Allyl Glycidyl Ether) (GECO) Elastomers

open access: yesJournal of Polymer Science, EarlyView.
Phenolic resin reduces crosslink density and alters the viscoelastic response of GECO elastomers. The magnitude of these changes depends strongly on polymer architecture. Damping performance is governed by the combined effects of network density and molecular structure, not resin content alone, providing a framework for designing advanced vibration ...
Yalçın Yalaki, Murat Şen
wiley   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada   +4 more
wiley   +1 more source

Tailoring Model‐Based Systems Engineering for Sub‐100 g PlanarSats: A Power‐First View Stack

open access: yesSystems Engineering, EarlyView.
ABSTRACT This paper addresses how to apply model‐based systems engineering (MBSE) to ultrasmall planar satellites under severe power and resource constraints. PlanarSats are sub‐100‐gram spacecraft built as single printed‐circuit boards where the same surface must host both electronics and solar cells, so power generation, geometry, and component ...
Mehmet Şevket Uludaǧ   +1 more
wiley   +1 more source

Image and video analysis using graph neural network for Internet of Medical Things and computer vision applications

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
Abstract Graph neural networks (GNNs) have revolutionised the processing of information by facilitating the transmission of messages between graph nodes. Graph neural networks operate on graph‐structured data, which makes them suitable for a wide variety of computer vision problems, such as link prediction, node classification, and graph classification.
Amit Sharma   +4 more
wiley   +1 more source

The diagnostics and laser infrastructure at the Soft X‐ray Port of the European XFEL

open access: yesJournal of Synchrotron Radiation, EarlyView.
The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.The diagnostics and laser infrastructure of the Soft X‐ray Port (SXP) at the European X‐ray Free Electron Laser are presented.
Patrik Grychtol   +7 more
wiley   +1 more source

Climate exposure drives firm political behavior: Evidence from earnings calls and lobbying data

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract When and how do firms engage in climate politics? We argue that regulatory concerns, business opportunities, and physical risks activate policy preferences and lobbying efforts. We measure firm‐level exposure to opportunity, regulatory, and physical aspects of climate change based on discussion in quarterly earnings call transcripts for 11,705
Christian Baehr   +2 more
wiley   +1 more source

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