Results 151 to 160 of about 1,806 (250)

Plasmonic fractal antennas

, 2016
We study the effects of using fractal shapes on the design of nanoantennas at optical geometries.
openaire   +1 more source

Vegetated Canopy Heterogeneity Footprints in the Roughness Sublayer

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract Turbulent flows over horizontally homogeneous rough surfaces are categorized as rough‐wall boundary layer flows, while flows over homogeneous vegetated canopies are better described through a mixing‐layer analogy. At present, numerous studies have investigated canopy density as a transition mechanism between rough‐wall and mixing‐layer‐type ...
Giulia Salmaso, Raúl B. Cal, Marc Calaf
wiley   +1 more source

Electrodynamic characteristics of wire dipole antennas based on fractal curves

, 2019
This article presents wire dipole antennas (d = 1 mm, length L0 = 14.5 cm) based on prefractals n=1, 2, 3 of the original anisotropic geometric fractal. An analytic description of this fractal is proposed through the Heaviside function.
Anis Amalina
core  

Impact of Shipping Emission Regulations on Atmospheric Vanadium Along U.S. North Atlantic Coast and Over the Western North Atlantic Ocean

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract Ship emissions from high sulfur residual fuel oil (RFO) are a major source of air pollution in coastal and marine environments. Emissions include sulfur oxides as well as fine particulate matter (PM2.5) enriched in vanadium (V) and nickel (Ni).
Francesca Gallo, Armin Sorooshian, Luke Ziemba, Grace Betito, Andrea F. Corral, Ewan Crosbie, Eva‐Lou Edwards, Miguel Ricardo A. Hilario, Simon Kirschler, Claire Robinson, Michael A. Shook, Kenneth L. Thornhill, Christiane Voigt, Edward Winstead, Kira Zeider, Richard Moore   +15 more
wiley   +1 more source

Multi-objective hybrid split-ring resonator and electromagnetic bandgap structure-based fractal antennas using hybrid metaheuristic framework for wireless applications. [PDF]

Sci Rep
Palanisamy S, Rubini SS, Khalaf OI, Hamam H.   +3 more
europepmc   +1 more source

Alexander Alexeevich Potapov (on the occasion of his 75th birthday)

Физика волновых процессов и радиотехнические системы
On the 4th of May 2026 Alexander Alexeevich Potapov turns 75 years old. He will celebrate his jubilee. He is a major Russian scientist known with his investigations in the field of radiophysics, radar, radio engineering, propagation of radio waves ...
Elena R. Men’kova
doaj  

A compact quad-element serrated boundary fractal planar antenna for multi-band mmWave 5G/6G wireless applications. [PDF]

PLoS One
Addepalli T, Vidyavathi T, SatishKumar M, Divya G, Balaji M, Medasani S, Zidan MS, Ibrahim IM, Al-Gburi AJA.   +8 more
europepmc   +1 more source

Design of MIMO antenna for 6G applications supported by fractal geometry. [PDF]

Sci Rep
Kumar A, Kumar R, Keswani B, Jain AK, Rawat P, Dewan B.   +5 more
europepmc   +1 more source

Applications of Nature-Inspired Water Cycle Algorithm in Antenna Design and Array Synthesis. [PDF]

Sensors (Basel)
Wei Y, Xu Y, Wang W, Wang A, Xu J, Luk KM.   +5 more
europepmc   +1 more source

Ultra-Wideband Double-Pentagonal Fractal Antenna for C-, X-, Ku- and K-Band Wireless Applications. [PDF]

Micromachines (Basel)
Kim J, Jang T, Lim S.
europepmc   +1 more source