Results 121 to 130 of about 25,069 (293)

Universal behavior of impact oscillators near grazing incidence

open access: yes, 1995
A grazing bifurcation is the bifurcation that takes place as a mechanical oscillator system evolves smoothly from a nonimpacting to an impacting state. This Letter summarizes different types of universal behavior associated with grazing bifurcations by ...
Edward Ott   +7 more
core   +1 more source

Triple‐Mode Ferroelectric Thin‐Film Transistor for Hybrid Electrical–Optical Reservoir Computing

open access: yesAdvanced Science, EarlyView.
A triple‐mode ferroelectric thin‐film transistor is developed by integrating Si3N4/HZO/IGZO layers to realize three independent memory modes: electric long‐term, electric short‐term, and optical short‐term. This single‐device architecture functions as both a reservoir and readout layer, achieving 92.43% MNIST accuracy. It offers a fully hardware‐based,
Hyeonho Lee   +9 more
wiley   +1 more source

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

open access: yesAdvanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

Comprendre le comportement alimentaire et spatial des troupeaux bovins en libre pâture pour une gestion durable des ressources pastorales : étude de cas dans le bassin de l’Ouémé Supérieur au Bénin

open access: yesBiotechnologie, Agronomie, Société et Environnement
Description of the subject. The scarcity and degradation of natural pastures have a strong influence on the behavior of animals on rangelands. Objectives.
Gildas Louis Djohy   +3 more
doaj   +1 more source

Grazing behavior of Maasai cattle [PDF]

open access: yes, 2014
The grazing behaviour of Maasai cattle was influenced by season, area and grazing orbit. In a grazing day the cattle spent 1, 8, 14, 15 and 62 percent of their time drinking, ruminating, resting, walking and grazing respectively.
Semenye, P.P.
core  

Paddock shape effects on grazing behavior and efficiency in sheep

open access: yes, 2001
Two grazing trials were conducted during early winter (December 1996-January 1997) and spring (April-May 1997) to evaluate the effect of shape of pasture on forage use and behavior of grazing sheep (Ovis aries).
Iascone, V.   +4 more
core   +1 more source

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

open access: yesAdvanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave   +14 more
wiley   +1 more source

Side Chain Elimination Enables Low‐Cost Fused‐Ring Acceptors and Reveals a Compact Tetrameric Structure for High‐Photocurrent Organic Solar Cells

open access: yesAdvanced Science, EarlyView.
β‐side chain elimination enables cost‐effective fused‐ring acceptors, JSM5 and JSM6, with simplified synthesis. The observed compact tetrameric structures induced by S···N intermolecular interactions lead to 3D charge transport and enhance intermolecular connectivity, delivering high short‐circuit current density up to 28 mA cm−2, a step closer to the ...
Jinhui Zhao   +14 more
wiley   +1 more source

Packhorse grazing behavior and immediate impact on a timberline meadow

open access: yes, 1996
Recreational packhorse grazing is one of many uses of high elevation wildland meadows. We quantified the behavior of horses grazing on an upper timberline meadow in southwestern Montana and the immediate impact on the plant community.
Marlow, C. B.   +4 more
core   +2 more sources

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