Results 141 to 150 of about 194,299 (398)

Package Bees for Honey Production and Pollination [PDF]

open access: yes, 1951
PDF pages ...
Reese, Chas. A.
core  

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

A five-year study of the striped bass fishery of Maryland, based on analyses of the scales [PDF]

open access: yes, 1950
The striped bass, or rock as the species is called in the Chesapeake area, ranks high in value and volume among the commercially important fish taken in Maryland waters and, in addition, is highly prized as a game fish by sportsmen.
Tiller, Richard E.
core  

Peak‐in‐Valley Metal Nano‐Architectures via E‐Beam‐Guided Metal Oxide Redox

open access: yesAdvanced Functional Materials, EarlyView.
Focused electron beam irradiation of nanoelectrosprayed water‐ammonia films enables the synthesis of topologically complex metal nanostructures via solvent‐mediated metal/metal‐ion redox control. Low ammonia favors radiolytic oxidation, etching copper.
Auwais Ahmed, Andrei G. Fedorov
wiley   +1 more source

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang   +9 more
wiley   +1 more source

Do brood parasitic Common Cuckoos develop brood patches during the breeding season?

open access: yesAvian Research
Many birds develop brood patches on their ventral apterium under hormonal regulation to effectively transmit body heat to eggs during incubation. The developed patch has several characteristics, including de-feathering, vascularization, and edema ...
Jun-Seo Go   +5 more
doaj   +1 more source

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