Results 91 to 100 of about 3,691,399 (279)

A review of the monotypic genus Chilelimnophila Alexander (Diptera: Tipulomorpha: Limoniidae) Revisão do gênero monotípico Chilelimnophila Alexander (Diptera: Tipulomorpha: Limoniidae)

open access: yesPapéis Avulsos de Zoologia, 2007
The Chilean species Chilelimnophila lyra (Alexander, 1952), the only included species in the genus Chilelimnophila Alexander, 1968, is redescribed on the basis of new available material from adjacencies of the type locality and other areas ...
Guilherme Cunha Ribeiro
doaj   +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

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler   +9 more
wiley   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

open access: yesAdvanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht   +5 more
wiley   +1 more source

The encounter with the Brahmans in the Old Russian and Latin versions of the Alexander Romance: modification of the sources [PDF]

open access: yesВестник Православного Свято-Тихоновского гуманитарного университета: Сериа III. Филология, 2012
The article examines the interpolated Brahmans’ episode in the Latin «Historia de preliis» (redaction J2) and the old Russian «Chronograph Alexander» (second redaction) and analyses similarities and differences that exist between the two versions.
Koroleva Elena
doaj  

Interaction of MgO Recyclate‐Based Cermet Anode With KF‐AlF3‐Al2O3 at 800°C During Laboratory Scale Aluminum Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain   +7 more
wiley   +1 more source

Novel Topical Treatment for Dandruff & Dry Scalp Through Sustained Balance in Skin Microbiome

open access: yesClinical, Cosmetic and Investigational Dermatology, 2021
Alexander Xiao, Christopher Warren, Waheeda Samady, Lucy Bilaver Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, IL, USACorrespondence: Alexander Xiao Email Alexander.xiao@northwestern ...
Xiao A, Warren C, Samady W, Bilaver L
doaj  

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

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer   +4 more
wiley   +1 more source

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