Results 101 to 110 of about 350 (246)

MusselFinder: Automated dreissenid mussel density estimation via robotic benthic imaging

Limnology and Oceanography: Methods, EarlyView.
Abstract Despite the widespread need to map the abundance of invasive quagga and zebr mussels (Dreissena spp.) in lakes and reservoirs worldwide, current methods remain limited by data collection and analysis bottlenecks. Autonomous underwater vehicles (AUVs) combined with machine learning (ML) offer a scalable remote sensing approach for estimating ...
Angus Galloway, Peter C. Esselman, Anthony Geglio, Shadi Moradi, Jennifer M. Morris, Joseph Geisz, Magdalena K. Sobol, Graham W. Taylor   +7 more
wiley   +1 more source

The Unreasonable Effectiveness of the nΣv Approximation

The Astrophysical Journal
In kinetic theory, the classic n Σ v approach calculates the rate of particle interactions from local quantities: the number density of particles n , the cross section Σ, and the average relative speed v .
Elisha Modelevsky, Nicholas C. Stone, Re’em Sari   +2 more
doaj   +1 more source

A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network

Laser &Photonics Reviews, EarlyView.
This work constructs a fully connected reconfigurable chip‐integrated quantum key distribution network via the mode‐pairing protocol. Hybrid ECL and WSS chips cut wavelength and port overhead, realizing arbitrary‐user key sharing with merely two wavelengths.
Xiao‐Lei Jiang, Wei Gao, Yan‐Yang Zhou, Yu Zhou, Yu‐Yao Guo, Yi‐Fei Lu, Yuan‐Chao Yu, Yang Wang, Jia‐Ji Li, Chun Zhou, Hong‐Wei Li, Liang‐Jun Lu, Lin‐Jie Zhou, Jian‐Ping Chen, Wan‐Su Bao   +14 more
wiley   +1 more source

The First Photometric Analysis of Two Low-mass-ratio Contact Binary Systems in TESS Survey

The Astronomical Journal
Low-mass-ratio ( q ) contact binary systems are progenitors of stellar mergers such as blue stragglers or fast-rotating FK Com stars. In this study, we present the first light curve analysis of two newly identified low mass-ratio contact binary systems ...
Qiyuan Cheng, Jianping Xiong, Xu Ding, Kaifan Ji, Jiao Li, Chao Liu, Jiangdan Li, Jingxiao Luo, Xin Lyu, Zhanwen Han, Xuefei Chen   +10 more
doaj   +1 more source

Hierarchical and Encrypted Optical Storage Based on Trap Level Modulation

National Materials, EarlyView.
ABSTRACT Driven by booming electronic information technology, massive digital data overloads current storage systems. Limited by optical diffraction, traditional optical media struggle to further boost storage capacity. To address these challenges, Yichun Liu and colleagues recently reported an advanced storage strategy in National Materials. This work
Xiaoli Wang, Zhiyong Tang
wiley   +1 more source

Unifying Main-sequence Morphologies in Young Open Clusters: Binary Evolution and the Emergence of Bridge-like Populations

The Astrophysical Journal
Most massive stars reside in binary systems, and binary interactions can profoundly alter the properties of both stellar components. In young open clusters, such interactions can produce multiple main-sequence populations, despite the coeval nature of ...
Chen Wang, Xue-Fei Chen, Xiang-Dong Li, Deng-Kai Jiang, Jakub Klencki, Xiao-Tian Xu   +5 more
doaj   +1 more source

A Service Ecosystems Approach for Sustainable Volunteer Engagement: Developing Insights From COVID‐19 Disruptions

Nonprofit Management and Leadership, EarlyView.
ABSTRACT The purpose of this paper is to develop foundational propositions designed to reflect success factors in the recruitment and retention of volunteers for future longevity. Using insights gathered from three universities' experiences of student volunteering during COVID‐19, plus capturing the experiences of volunteer involving organizations, we ...
Ingrid O'Brien, Fazlul K. Rabbanee, Eunjung Kim, Megan Paull, Kirsten Holmes, Jo‐Anne Kestel   +5 more
wiley   +1 more source

Binary Stars Take What They Get: Evidence for Efficient Mass Transfer from Stripped Stars with Rapidly Rotating Companions

The Astrophysical Journal Letters
Binary stars and their interactions shape the formation of compact binaries, supernovae, and gravitational-wave sources. The efficiency of mass transfer—the fraction of mass retained by the accretor during binary interaction—is a critical parameter that ...
Thibault Lechien, Selma E. de Mink, Ruggero Valli, Amanda C. Rubio, Lieke A. C. van Son, Robert Klement, Harim Jin, Onno Pols   +7 more
doaj   +1 more source

Leucaena Oil Functionalized With Osmium Tetroxide as a Precursor for Polyol‐Based Polyurethane

Journal of Polymer Science, EarlyView.
Leucaena leucocephala seed oil is converted into a hydroxyl‐functional biopolyol through OsO4‐mediated dihydroxylation. The resulting biopolyol shows a hydroxyl number of 160–175 mg KOH g−1 and is successfully used to produce flexible, open‐cell polyurethane foams, highlighting a renewable route for converting underutilized biomass into value‐added ...
Giovanni Miraveti Carriello, Lucas Repecka Alves, Guilherme Manassés Pegoraro, Henrique Solowej Medeiros Lopes, Amanda Stefanie Jabur de Assis, Thaís de Agrella Janolla, David Rodrigues Gomes, Diego Aleixo da Silva, Beatriz Merillas, Fabiana Aparecida Lobo, Fabio Minoru Yamaji, Maira de Lourdes Rezende, Aparecido Junior de Menezes, Giovanni Pimenta Mambrini   +13 more
wiley   +1 more source

Chemical diversity and phylogenetic insights into Hawaiian ʻākia (Wikstroemia) species used in traditional fishing practices

PLANTS, PEOPLE, PLANET, EarlyView.
Traditional fishing with plant‐based piscicides is a global practice in decline, facing increasing restrictions. We investigated the chemical diversity of endemic Wikstroemia species historically used to stun or poison fish in Hawaiʻi. Using 1‐H‐NMR, principal component analysis, targeted HPLC, and target‐capture sequencing, we characterized compounds ...
Louise Winther, Isaac Lichter‐Marck, Louise Kjaerulff, David Lorence, Uma Nagendra, Mike Opgenorth, Sverre J. Schou, Kenneth R. Wood, Felipe Zapata, Dan Staerk, Nina Rønsted   +10 more
wiley   +1 more source