Results 121 to 130 of about 5,339 (296)

Dual‐Band Circularly Polarised Asymmetric Linear‐Tapered Horn Antenna for Feeder of Synthetic Aperture Radar Onboard Microsatellite

open access: yesIET Microwaves, Antennas & Propagation
This paper presents a novel dual‐band waveguide‐fed circularly polarised (CP) horn antenna for the feeder of synthetic aperture radar (SAR) onboard microsatellite.
Derry Permana Yusuf   +4 more
doaj   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

open access: yesAdvanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu   +8 more
wiley   +1 more source

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken   +10 more
wiley   +1 more source

Millimeter-wave radar antennas for rescue helicopters

open access: yes, 2006
International ...
Mayer, W.   +9 more
core   +1 more source

Technology Transfer to Underwater Archaeology: The LAHKE Project at the Submerged Neolithic Site of La Marmotta

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This document is a report on the field application of non‐invasive geophysical and robotic prospecting methods at the submerged Neolithic site of La Marmotta (Lake Bracciano, Italy), within the LAHKE (LAke Heritage Knowledge and Exploration) project; the study focuses on the practical validation, adaptation and transfer of existing ...
dell' Erba Ramiro   +4 more
wiley   +1 more source

A repertoire of middle leading practices: A large‐scale investigation of middle leadership in schools

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This article presents findings from an Australian study investigating the practices of middle leaders responsible for facilitating school development. Despite middle leaders being increasingly recognised as essential in the development of teaching and learning in schools, middle leadership remains under‐researched and comparatively overlooked ...
Peter Grootenboer   +3 more
wiley   +1 more source

Erwin Schrödinger und die Versuchungen der (Wissenschafts‐)Biografik: Vorurteilsgefüge und Mechanismen der Skandalisierung

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
Since late 2021, serious allegations have been made against physicist Erwin Schrödinger, ranging from pedophilia to serial sexual abuse. These accusations have significantly tarnished the Nobel Prize winner's public reputation. The ongoing debate has repeatedly raised the question of whether, and to what extent, these grave allegations are justified ...
Magdalena Gronau, Martin Gronau
wiley   +1 more source

Metamaterial Antennas for RADAR and SAR

open access: yes, 2018
RADAR and Synthetic Aperture Radar (SAR) system require broadband directive antennas. Directivity require antennas to be large, which turns to be impracticable in many applications. Metamaterial antennas are built using complex miniaturized structures that produce small antennas that behave equally to much larger traditional antennas.
openaire   +2 more sources

Eudragit®‐engineered pH‐responsive probiotic microspheres with enhanced gastrointestinal resistance and prolonged storage stability for inflammatory bowel disease therapy

open access: yesBMEMat, EarlyView.
This study reports the development of AMS@Eud core‐shell microspheres, combining calcium alginate and pH‐responsive Eudragit® L100, which exhibit exceptional gastrointestinal resistance and long‐term storage stability (only 5.28%–9.09% viability loss over 35 days at 4–25°C), and effectively alleviate inflammatory bowel disease via gut microbiota ...
Ming Teng   +5 more
wiley   +1 more source

On space-based synthetic aperture radar antennas

open access: yes, 2007
Informatie wordt gegeven over verschillende uitvoeringewn en mogelijkheden voor antennes voor een synthetische apertuur radar in de ruimte. De keuze wordt mede bepaald door allerlei factoren zoals data afhandeling, vermogen beschikbaar, bedekking gewenst
Klooster, CGM van 't
core  

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