Results 1 to 10 of about 261,906 (152)

Emergent scattering regimes in disordered metasurfaces near critical packing [PDF]

open access: yesNature Communications
Disordered metasurfaces provide a versatile platform for harnessing near- and far-field scattered light. Most research has focused on either particulate topologies composed of individual, well-identified metaatoms or, to a lesser extent, semi-continuous ...
M. Chen   +5 more
doaj   +2 more sources

Multi-GHz repetition rate femtosecond electro-optic frequency comb based on one single phase modulator and non-linear processes [PDF]

open access: yesEPJ Web of Conferences, 2023
We report on a multi-GHz repetition rate, femtosecond fiber laser operating in the burst mode, achieved by nonlinearly shaping and amplifying a phase-only modulated electro-optic comb at 1.03 μm.
Ye Hanyu   +3 more
doaj   +1 more source

Non-linear amplification to 200 W of an electro-optic frequency comb with GHz tunable repetition rates [PDF]

open access: yesEPJ Web of Conferences, 2023
We present a monolithic Yb-doped fiber laser system delivering 200 W average power of femtosecond pulses at tunable GHz repetition rates. The system is based on a GHz electro-optic (EO) frequency comb operating in the nonlinear regime. The EO comb pulses
Ye Hanyu   +5 more
doaj   +1 more source

The Incubascope: a simple, compact and large field of view microscope for long-term imaging inside an incubator

open access: yesRoyal Society Open Science, 2022
Optical imaging has rapidly evolved in the last decades. Sophisticated microscopes allowing optical sectioning for three-dimensional imaging or sub-diffraction resolution are available.
A. Badon   +6 more
doaj   +1 more source

L'éducation numérique en Afrique : usages et perspectives

open access: yesMédiations & Médiatisations, 2023
La question du recours au numérique en éducation en Afrique ne constitue pas une préoccupation nouvelle. Le numérique semble aujourd’hui omniprésent, conduisant certains à parler d’un véritable tsunami numérique, voire de révolution numérique.
Lionel Roche   +2 more
doaj   +1 more source

Parametrical Study of Freshwater–Saltwater Interface Dynamic

open access: yesModelling and Simulation in Engineering, 2023
In this paper, a saltwater intrusion model, in view to study the dynamics of the interface between the saltwater and the freshwater in a coastal aquifer, is established. This dynamic is caused by an injection of saltwater and a freshwater pumping through
Mody Lo, Daouda Sangare
doaj   +1 more source

Le Mas numérique, 6 ans d’expérience d’un domaine viticole connecté exemplaire. Partie I : un projet pour la formation et l’acculturation

open access: yesIVES Technical Reviews, 2022
Le concept d’outil numérique professionnel est souvent perçu comme flou et difficile à concrétiser. L’hypothèse du Mas numérique (Crestey et Tisseyre, 2019, 2020) est que la profession viticole, les instituts de formation et les instituts techniques ont ...
Thomas Crestey, Bruno Tisseyre
doaj   +1 more source

ALPHABÉTISATION NUMÉRIQUE DES ÉTUDIANTS DE DERNIÈRE ANNÉE DU PROGRAMME D™Ã‰TUDES EN ENSEIGNEMENT DES LANGUES FRANÇAIS UNIVERSITÉ D™Ã‰TAT DE JAKARTA

open access: yesHEXAGONE Jurnal Pendidikan, Linguistik, Budaya dan Sastra Perancis, 2023
Cette étude vise à découvrir comment les compétences en littératie numérique des étudiants de dernière année du programme d™Ã©tudes Français d™Ã©ducation aux langues de l™UNJ, en particulier dans l™apprentissage Français des langues. Cette recherche utilise une approche quantitative avec une méthode descriptive.
Anjani, Syafa Zanuba   +2 more
openaire   +2 more sources

When Super-Resolution Localization Microscopy Meets Carbon Nanotubes

open access: yesNanomaterials, 2022
We recently assisted in a revolution in the realm of fluorescence microscopy triggered by the advent of super-resolution techniques that surpass the classic diffraction limit barrier. By providing optical images with nanometer resolution in the far field,
Somen Nandi   +2 more
doaj   +1 more source

Écriture collaborative numérique en classe de FLE : compétences, créativité et adaptation pédagogique [PDF]

open access: yesAkofena, 2023
Résumé : La présente étude aborde la tendance croissante de l'écriture et de la création collaborative à l'ère numérique, rendue possible par des outils numériques qui permettent aux individus de travailler ensemble à distance.
Nardjas ZEGHIB
doaj   +1 more source

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