Results 61 to 70 of about 108,521 (301)

Toward Low‐Consumable Anodes: Process Simulation and Prospective Life Cycle Assessment of NiFe2O4‐NiO‐Ni‐Cu vs. Prebaked Anodes for Aluminum Production with use of Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz   +6 more
wiley   +1 more source

Mathematical Modeling of Conversion CO To CO2 in Batch Mode CO2 Laser System [PDF]

open access: yesEngineering and Technology Journal, 2008
The oxidation of carbon monoxide CO over supported noble metal catalyst is animportant part of the catalytic control in sealed-off TEA CO2 laser system.
Adawiya J. Haider   +2 more
doaj   +1 more source

Solar noble bases in enstatite chondrites and implications for the formation of the terrestrial planets [PDF]

open access: yes, 2003
We report evidence for tiny amounts of - most likely primordial - noble gases with solar-like elemental and isotopic composition admixed to Q-type primordial noble gases in an E chondrite.
Baur, H., Busemann, H., Wieler, R.
core  

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

open access: yesAdvanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior   +6 more
wiley   +1 more source

Were Presolar Grains Destroyed by the Nebular Process Responsible for the Volatile Element Fractionation? [PDF]

open access: yes, 2008
We present SiC abundances from a number of CM and CR chondrites using NanoSIMS raster ion imaging of acid residues.
Alexander, C. M. O'd.   +6 more
core  

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi   +3 more
wiley   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Noble Gases

open access: yes, 2017
This is an advance summary of a forthcoming article in the Oxford Encyclopedia of Planetary Science. Please check back later for the full article.Although the second most abundant element in the cosmos is helium, noble gases are also called rare gases.
Chris J. Ballentine, Peter H. Barry
openaire   +3 more sources

Venus Atmospheric Composition In Situ Data: A Compilation

open access: yesEarth and Space Science, 2019
The Venus atmosphere is of significant interest yet only rudimentary solid data have been gathered about its composition and chemistry. These measurements are scattered through time and place and are limited by parameters such as resolution and error ...
Natasha M. Johnson   +1 more
doaj   +1 more source

New Perspectives in the Noble Gas Chemistry Opened by Electrophilic Anions

open access: yesFrontiers in Chemistry, 2020
Binding of noble gases (NGs) is commonly considered to be the realm of highly reactive electophiles with cationic or at least non-charged character. Herein, we summarize our latest results evidencing that the incorporation of a strongly electrophilic ...
Markus Rohdenburg   +3 more
doaj   +1 more source

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