Results 71 to 80 of about 155,077 (262)
Design of a vertically stacked double Luneburg lens-based beam-scanning antenna at 60 GHz
Open EngineeringThis article presents the design of a 60 GHz beam-scanning antenna system with a coverage range of 50–100 m for high-speed indoor communication systems.
Alhumaidan Ahmed +4 more
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Nanoindentation Criteria for Combinatorial Thin Film Libraries
Advanced Engineering Materials, EarlyView.Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley +1 more source
Wide-Angle Beam-Scanning Antenna Array for Extending the Lateral Detection Range of GPR
MathematicsThis study presents a novel beam-scanning ground-penetrating radar (BS-GPR) system based on a wide-angle beam-scanning antenna array, aimed at extending the lateral detection range and improving the imaging fidelity without increasing the size of the ...
Qifei Zhang +4 more
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Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
Effects of beam scanning modes on ion-irradiated iron microstructure
Nuclear Materials and EnergyNeutron induced damage in future nuclear materials can be studied using heavy ion beams only if the differences in the microstructure evolution are well understood.
T. Dunatov, M. Roldan, T. Tadić
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Research on SSB 1+X beam technology of 5G network
Dianxin kexue, 2022 Beam scanning and spatial dimensions in 5G was introduced in the 3GPP standard.When UE connects gNodeB, gNodeB uses SSB beam rotation to detect the optimal beam of UE.After UE was connected, the CSI-RS configuration information could be obtained and the ...
Bei LI +7 more
doaj
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland +5 more
wiley +1 more source
Microsystems & NanoengineeringPolarization conversion and beam scanning metasurfaces are commonly used to reduce polarization mismatch and direct electromagnetic waves in a specific direction to improve the strength of a wireless signal.
Chhunheng Lor +2 more
doaj +1 more source