Results 21 to 30 of about 27,337 (248)

Multiscale Simulations in Welds

open access: yesACI Avances en Ciencias e Ingenierías, 2012
Welding processes involve complex couplings between fluid dynamics, heat transfer and the metallurgical changes experienced by the base metal. Distortion, residual stresses, grain structure, cooling rates, high temperatures and consequently the reduced ...
Edison A. Bonifaz
doaj   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Early‐life high‐fat diet exposure increases Achilles tendon stiffness and induces transcriptomic alterations

open access: yesFEBS Open Bio, EarlyView.
Early‐life exposure to a high‐fat diet altered intact Achilles tendons in rat offspring, making them thinner, stiffer, and molecularly distinct even without injury. These findings suggest that developmental high‐fat diet exposure may impair tendon quality and increase susceptibility to mechanical overload or tendon injury later in life.
Heyong Yin   +3 more
wiley   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Versions of political history trauma in the Rodrigo Lira poetry [PDF]

open access: yes, 2017
Indexación: Scopus.Este artículo tiene por objetivo realizar una nueva propuesta de análisis de la poesía de Rodrigo Lira (1949-1981) que desde la textualidad articula la dimensión histórico-política y la experiencia del trauma en un momento específico ...
Tesche Roa, P.
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Análisis de estrategias de enfriamiento de raíles mediante simulación numérica con cálculo instantáneo del coeficiente de expansión térmica

open access: yesRevista de Metalurgia, 2010
En este artículo se describe una nueva metodología para simular el proceso de enfriamiento de un rail asimétrico Ri60, diseñado para tranvías, de una forma mucho más realista que lo realizado hasta ahora para perfiles largos de acero.
A. Pernía-Espinoza   +3 more
doaj   +1 more source

Control de las tensiones residuales como herramienta de mejora de los alambres de pretensado: 2. Optimización de las propiedades mecánicas [PDF]

open access: yes, 2008
En este artículo se resume el trabajo desarrollado por los autores durante estos últimos años para mejorar el comportamiento de las armaduras activas del hormigón pretensado mediante el control de sus tensiones residuales.
Atienza Riera, José Miguel   +2 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

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