Results 141 to 150 of about 42,931 (308)
Planar Pyramidal Horn Antenna Without Any E-Plane Flaring for 5G Applications
IEEE AccessThis paper presents, for the first time, a planar implementation of a pyramidal horn antenna for 5G millimeter-wave (mmWave) applications. A substrate integrated waveguide (SIW) based planar H-plane horn antenna is designed and judiciously modified to ...
Nilanjan Dutta +4 more
doaj +1 more source
Parabolic reflector horn feed with spillover correction Patent [PDF]
, 1965 Device for improving efficiency of parabolic reflector horn for linearly or circularly polarized ...
Nixon, D. L., Schuster, D. M.
core +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.‘Greening’ is often depicted as an inherently benevolent practice, turning arid stretches of land into arable and fertile plots. However, by considering a longer history of place and taking archival records into account, such transformations are rendered more complex and, often, more fraught.
Zsuzsanna Ihar
wiley +1 more source
Absolute gain measurement by the image method under mismatched condition [PDF]
Purcell's image method for measuring the absolute gain of an antenna is particularly attractive for small test antennas. The method is simple to use and utilizes only one antenna with a reflecting plane to provide an image for the receiving antenna ...
Baddour, Maurice F., Lee, Richard Q.
core +1 more source
Pest Management Science, EarlyView.This study employs an AI‐driven multidisciplinary approach to increase our understanding of the toxicological effects of sublethal concentrations of carlina oxide on Prostephanus truncatus. Sublethal exposure to the carlina oxide induced changes in motor patterns and thigmotaxis, highlighting its potential role in integrated pest management strategies.
Anita Casadei +9 more
wiley +1 more source
Science Education, EarlyView.ABSTRACT Research‐practice partnerships addressing climate change education face challenges navigating political resistance, epistemic tensions, and systemic inequities within schools and communities. Recent scholarship has outlined transformative climate change education (TCCE) as requiring the simultaneous transformation of curricula, pedagogies, and
Amal Ibourk, Deb L. Morrison
wiley +1 more source
High‐Yield Assembly of Plasmon‐Coupled Nanodiamonds Using DNA Origami for Tuned Emission
Small Structures, EarlyView.Engineering assemblies of single‐photon emitters and plasmonic elements with nanometer precision opens pathways for quantum sensing and photonics applications. A surface functionalization strategy is established for grafting DNA onto nanodiamonds, and their placement on DNA origami is optimized to achieve yields above 50%.
Niklas Hansen +7 more
wiley +1 more source
Perbandingan Efisiensi Antena Horn Sektoral Bidang-H Dengan Berbagai Bahan Untuk Aplikasi WLAN 2,4 GHz [PDF]
H-plane sectoral horn antenna is a gap antenna (aperture antenna) are based on channel square wave (rectangular waveguide), whose mouth was widened directed into the magnetic field (H), so the final form of this antenna resembling a pyramid.
Aswoyo , Budi +1 more
core
Small Structures, EarlyView.This study uses nanocellulose crystals (NCCs) as the precursor for graphene production. The NCCs are pyrolyzed at 500–800 °C and then converted to graphene in the vortex fluidic device using only water as the solvent. The graphene shows a relatively high quality and TEM confirming <6 layers.
Yu Matsueda +2 more
wiley +1 more source
Pattern measurements of a low-sidelobe horn antenna [PDF]
The techniques and results of power pattern measurements of a corrugated horn antenna designed for low sidelobes are reported. The power pattern was measured to levels 90 dB below the main beam maximum in both the E- and H-planes.
Bednarczyk, S. M. +4 more
core +1 more source