Results 61 to 70 of about 2,663,398 (328)

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

open access: yesAdvanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings   +6 more
wiley   +1 more source

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

open access: yesAdvanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears   +5 more
wiley   +1 more source

Charles A. Bird to John W. Bird, June 8, 1899

open access: yes, 2018
In this letter of June 8, 1899, Charles A. Bird writes to his father John W. Bird regarding material to finish the roof.
Bird, Charles A., 1853-1938;
core  

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

open access: yesAdvanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel   +3 more
wiley   +1 more source

Book Reviews

open access: yesAvocetta, 2016
Reedman R., 2016. Lapwings, Loons and Lousy Jacks. The how and why of Bird Names. Pelagic Publ., Exeter, UK. 292 pp.
Bruno Massa
doaj  

Avian Immunome DB: an example of a user-friendly interface for extracting genetic information

open access: yesBMC Bioinformatics, 2020
Background Genomic and genetic studies often require a target list of genes before conducting any hypothesis testing or experimental verification. With the ever-growing number of sequenced genomes and a variety of different annotation strategies, comes ...
Ralf C. Mueller   +5 more
doaj   +1 more source

Roy Bird to Uncle Ernest, December 12, 1920

open access: yes, 2018
This postcard, postmarked from Swannanoa December 20, 1932, was written by Roy Bird (1916-2009) to Mr. W. E. Bird in Cullowhee and shows a decorated Christmas tree in a living room and is part of the William E. Bird Collection.
Bird, Roy, 1916-2009;
core  

Metal‐Enhanced Charge Transport and its Mechanism in Atomically Precise Ruthenium Single‐Molecule Devices

open access: yesAdvanced Science, EarlyView.
An atomically precise platform was developed for investigating single‐molecule charge transport. This innovative platform enables the creation of highly uniform molecular devices using ruthenium‐based molecules. It reveals a significant enhancement in molecular conductance due to the metallic ruthenium center and a unique barrier‐lowering effect during
Jie Guo   +15 more
wiley   +1 more source

Looma- ja linnunimetused kohanimedes ja nimeandmispõhimõtted

open access: yesEesti ja Soome-ugri Keeleteaduse Ajakiri, 2013
Kõik loomulikud kohanimed on sünnihetkel nime andva väikse kogukonna jaoks motiveeritud. Artiklis on tutvustatud nimeandmispõhimõtteid – millised on kohanimede tekkemotiivide kõige tavalisemad võimalused.
Mariko Faster, Evar Saar
doaj   +1 more source

Environmental interactions between people and birds in semiarid lands of the Zapotitlán Valley, Central Mexico

open access: yesJournal of Ethnobiology and Ethnomedicine, 2020
Background Birds have been among the most important element in lives of humans around the world, due to their presence and abundance in practically all ecosystems.
Yessica Angélica Romero-Bautista   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy