Results 81 to 90 of about 149,122 (306)

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

An Estimate of the Uncertainty in the Grounding Resistance of Electrodes Buried in Two-Layered Soils with Non-Flat Surface

open access: yesEnergies, 2017
The influence of the irregular surface of a multi-layered soil on the estimation of the ground resistance of a complex electrode is studied. The electrode is placed in the first layer while the irregular surface is treated as the interface of an ...
Eduardo Faleiro   +2 more
doaj   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

High Resistance Grounding Fault Perception and Identification Method in Asymmetric Distribution Network

open access: yesZhongguo dianli
Aiming at the problems of fault perception and identification in high resistance grounding fault of distribution network, a high resistance grounding fault perception method for parameter-asymmetric distribution network based on damping rate variation is
Penghui YANG   +5 more
doaj   +1 more source

Subversive: Space as a Movement-Making Tool [PDF]

open access: yes, 2019
By exploring placemaking and indigenous memory, this paper argues that space can and should be utilized in movements against oppression. Grassroots resistance is increasingly necessary as the globally marginalized face the constant threats of ...
Schumacher, Maddie
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

PRECURSORY AND COSEISMIC CHANGES IN GROUND RESISTIVITY

open access: yesJournal of Physics of the Earth, 1977
A resistivity variometer of unusually high sensitivity has been in operation at a crustal movement observatory about 60km south of Tokyo since 1968. The variometer records changes in ground resistivity caused by crustal strain in association with tidal loading. When a large earthquake occurs, the variometer often records a step-wise change.
Tsuneji Rikitake, Yoshio Yamazaki
openaire   +2 more sources

A boundary element numerical approach for substation grounding in a two layer earth structure [PDF]

open access: yes, 1997
[Abstract] Analysis and design of substation grounding requires computing the distribution of potential on the earth surface (for reasons of human security) and the equivalent resistance of the earthing system (for reasons of equipment protection) when
Aneiros Blanco, Juan M.   +2 more
core  

Hysteresis and Spikes in the Quantum Hall Effect

open access: yes, 1999
We observe sharp peaks and strong hysteresis in the electronic transport of a two-dimensional electron gas (2DEG) in the region of the integral quantum Hall effect.
D. A. Syphers   +11 more
core   +1 more source

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