Results 111 to 120 of about 1,085,855 (283)

Estrategias para la docencia en línea [PDF]

open access: yes, 2019
Recurs d'aprenentatge de la Universitat Oberta de Catalunya.Recurso de aprendizaje de la "Universitat Oberta de Catalunya".Learning material of the "Universitat Oberta de Catalunya"
Guitert Catasús, Montse   +1 more
core  

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

La universitat i quelcom anomentat universitat [PDF]

open access: yes, 2017
Fa la sensació que la postmodernitat té més o menys clar quina universitat necessitem. Independentment de les particularitats de cada lloc, es planteja una universitat que sigui útil, efectiva i eficient, que es converteixi en un motor de canvi econòmic ...
Esteban Bara, Francisco, 1975-
core  

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

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

Reseña del libro de Aarón Rodríguez y Samuel Gil (Eds.) "Investigar en la era neoliberal"

open access: yesRecerca: Revista de Pensament i Anàlisi, 2019
Reseña sobre el volumen  Investigar en la era neoliberal. Visiones críticas sobre la investigación en Comunicación en España.  Bellaterra, Castelló de la Plana, Barcelona, Valencia: Universitat Autònoma de Barcelona, Publicacions de la Universitat Jaume ...
Antonio Loriguillo-López
doaj  

La Universitat del futur, una universitat centrada en l'estudiant

open access: yes, 2008
L'aprenentatge sempre està centrat en l'estudiant ja que s'ha de fonamentar en la seva experiència, així com en les seves expectatives i necessitats, però les nostres universitats s'aferren a la transferència de coneixement unidireccional. Aquest mètode resulta absurd en una era en què la gran quantitat d'informació, els dispositius multimèdia, la ...
openaire   +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

L'informe Universitat 2000 [PDF]

open access: yes, 2001
Abstract not ...
openaire  

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