Results 81 to 90 of about 446,077 (248)

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

Advanced 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, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

A busca de Deus nos solilóquios de Agostinho = God in st. Augustine’s soliloquies

Teocomunicação, 2011
Agostinho é filósofo cristão e Padre da Igreja de corrente latina. Ele contribuiu muitíssimo para a formação do pensamento cristão no Ocidente, constituindo-se num verdadeiro Mestre do Ocidente.
Nodari, Paulo César
doaj  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Novel Use for Hemostatic Net in Split-thickness Skin Grafts

Plastic and Reconstructive Surgery, Global Open, 2021
Liz Carolina Pava, MD, Juana Mendoza, MD, Diana Martinez, MD, Stefania Rodríguez-Bermeo, MD, Valeria Barrios, MD, Viviana Gómez-Ortega, MD   +5 more
doaj   +1 more source

A fé na ressurreição da carne em tertuliano

Teocomunicação, 2007
O artigo mostra a verdade de fé cristã que é a ressureição da carne, em um dos autores mais importantes do final do II e inicio do III século, na igreja antiga: Tertuliano. Ele teve que defendê-la diante de todos aqueles que a negavam.
Corbellini, Vital
doaj  

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Fé, razão e verdade: a contribuição de Anselmo de Cantuária

Teocomunicação, 2008
O artigo analisa a relação entre fé, razão e verdade, na obra de Anselmo de Cantuária, a partir da obra De veritate, onde a verdade suprema é Deus.
Romio, Jocimar, Hackmann, Geraldo Luiz Borges   +1 more
doaj  

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

Advanced 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, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Propuesta de un sistema de estadiaje de tumores de mediastino: A Proposal

Acta Médica Costarricense, 2010
El mediastino es un compartimento que aloja tumores de variado origen histológico, dada la diversidad de órganos y estructuras que lo ocupan o lo transitan.
Carlos Salazar-Vargas, Pablo Araya-Castro, Lidia Rodríguez-Jiménez, Rafael A Umaña-Umaña   +3 more
doaj  

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

Advanced 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, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source