Results 41 to 50 of about 401,901 (235)

Nitrogen front evolution in purged polymer electrolyte membrane fuel cell with dead-ended anode [PDF]

open access: yes, 2010
In this paper, we model and experimentally verify the evolution of liquid water and nitrogen fronts along the length of the anode channel in a proton exchange membrane fuel cell operating with a dead-ended anode that is fed by dry hydrogen.
Bohac, Stanislav V.   +4 more
core   +2 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

Further studies of single-sided charge-sharing CZT strip detectors [PDF]

open access: yes, 2005
We report progress in the study of a thick CZT strip detector module designed to perform gamma-ray spectroscopy and 3-D imaging. We report preliminary performance measurements of 7.5 mm thick single-sided charge-sharing strip detector prototype devices ...
Donmez, B   +6 more
core   +2 more sources

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

open access: yesAdvanced 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

INCREASING EXTINGUISHING EFFECT OF WATER MIST BY ELEKTRIFICATION [PDF]

open access: yesCivil Engineering Journal, 2017
This paper describes extinguishing experiments to verify the possibility of increasing the fire-extinguishing efficiency of low-, medium- and high-pressure water mist by its charging by the electric field of high DC voltage.
Otto Dvořák, Jan Koller
doaj   +1 more source

The anode proximity effect for generic smooth field emitters

open access: yes, 2019
The proximity of the anode to a curved field electron emitter alters the electric field at the apex and its neighbourhood. A formula for the apex field enhancement factor, $\gamma_a(D)$, for generic smooth emitters is derived using the line charge model ...
Biswas, Debabrata
core   +1 more source

Energy and position resolution of a CdZnTe gamma-ray detector with orthogonal coplanar anodes [PDF]

open access: yes, 1999
We report on the simulation, construction and performance of prototype CZT imaging detectors employing orthogonal coplanar anodes. These detectors employ a novel electrode geometry with non-collecting anode strips in 1D and collecting anode pixels ...
Dufour, Pierre C   +7 more
core   +2 more sources

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

Formation of physically durable and performance sensitive solid-electrolyte interphase of SiOx anode for lithium-ion battery

open access: yesMaterials Research Letters, 2019
Although SiOx is a well-known promising anode material for Li-ion batteries because of its high energy density and cyclic stability, the inferior electron transport kinetics and morphologically unstable solid-electrolyte interphase (SEI) layer formed on ...
Hyeon-Woo Yang   +4 more
doaj   +1 more source

Seleção de refratários para fornos de cozimento de anodo Refractories selection for anode baking furnace

open access: yesCerâmica, 2009
Nos últimos anos a produção mundial de alumínio tem aumentado e para as empresas continuarem competitivas torna-se necessário que a média do custo de produção do metal seja reduzida.
P. R. T. Tiba   +4 more
doaj   +1 more source

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