Results 51 to 60 of about 1,390,652 (296)

Analysis of non uniform surface current distribution on thick and thin wire antenna [PDF]

open access: yes, 2013
When wires are closely parallel, the surface current distribution becomes non uniform. Normal mode helical antenna is choosing in particular in order to study the effect of surface current distribution along its segmentation from the excitation ...
Abd. Rahman, Rais Rabani
core  

Drawing Wire

open access: yesEXARC Journal, 2023
Very few experiments have been conducted on drawing wires of iron made from bog ore. One of them, however, was carried out at the forge at Lejre Land of Legends in Denmark. The iron used for the experiments was obtained from three different sites in Denmark where well-documented experiments in the extraction of bog iron ore took place.
openaire   +2 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Potential of Wake Scaling Techniques for Vertical-Axis Wind Turbine Wake Prediction

open access: yesEnergies
Analytical wake models are widely used to predict wind turbine wakes. While these models are well-established for horizontal-axis wind turbines (HAWTs), the analytical wake models for vertical-axis wind turbines (VAWTs) remain under-explored in the wind ...
Dara Vahidi, Fernando Porté-Agel
doaj   +1 more source

Automatic reel controls filler wire in welding machines [PDF]

open access: yes, 1966
Automatic reel on automatic welding equipment takes up slack in the reel-fed filler wire when welding operation is terminated. The reel maintains constant, adjustable tension on the wire during the welding operation and rewinds the wire from the wire ...
Millett, A. V.
core   +1 more source

Exploding Wire as a Light Source in Flash Photolysis [PDF]

open access: yes, 1957
The exploding wire technique has been developed for use as a light source in flash photolysis. The method consists of discharging a bank of condensers, via a mechanical switch through a thin Nichrome wire.
Marcus, R. A., Oster, Gisela K.
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

The Effect of Drawing Speed on the Ageing of High-Carbon Steel Wire [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The paper analyzes the effect of ageing on the variations in the mechanical and technological properties of steel wire. The process of drawing 5.5 mm-diameter wire rod into 1.70 mm wire was carried out in 12 draws on a Koch KGT multi-stage drawing ...
M. Suliga
doaj   +1 more source

M-atom conductance oscillations of a metallic quantum wire

open access: yes, 2005
The electron transport through a monoatomic metallic wire connected to leads is investigated using the tight-binding Hamiltonian and Green's function technique.
Arfken G   +5 more
core   +1 more source

Minimization of Ohmic losses for domain wall motion in a ferromagnetic nanowire [PDF]

open access: yes, 2010
We study current-induced domain-wall motion in a narrow ferromagnetic wire. We propose a way to move domain walls with a resonant time-dependent current which dramatically decreases the Ohmic losses in the wire and allows to drive the domain wall with ...
Abanov, Ar., Liu, Y., Tretiakov, Oleg A.
core   +3 more sources

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