Results 31 to 40 of about 646,231 (297)

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

La huella de las oscilaciones globales del nivel del mar durante los últimos 530000 años en el Golfo de León y su variabilidad durante el estadio isotópico marino 3 [PDF]

open access: yes, 2016
El sondeo PRGL1-4, recuperado en el talud superior, ha proporcionado un registro único, continuo y de larga duración para la investigación del impacto de las oscilaciones del nivel del mar de escala glacial/interglacial durante el Pleistoceno Superior en
Cacho Lascorz, Isabel   +6 more
core  

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Cambios del nivel del mar durante el Holoceno en el Cantábrico a partir del estudio de la Turbera de Trengandín [PDF]

open access: yes, 1996
[Resumen] El estudio de dos depósitos proporcionan nuevos datos acerca de los cambios del nivel del mar durante el Holoceno. De acuerdo con ellos, durante el Sub-Boreal el nivel del mar no estuvo por encima de -2 m con respecto al nivel actual.
Martínez, P., Remondo, J., Salas, L.
core   +1 more source

An ultra‐processed food‐based cafeteria diet induces obesity, metabolic dysfunction, and tissue‐specific gene dysregulation in C57BL/6 mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This schematic figure illustrates the experimental design and key findings of the study. Forty male C57BL/6 mice were assigned to either a standard diet control group or a cafeteria diet (CAFD) group for 16 weeks. CAFD induces obesity, insulin resistance (HOMA‐IR), hepatic steatosis, and dysregulation of a number of genes in visceral and subcutaneous ...
Guilherme Coutinho Kullmann Duarte   +9 more
wiley   +1 more source

Design of Experiments‐Based Optimization of Recovered Carbon Black–Reinforced Isobutylene–Isoprene Rubber in Comparison With Conventional Carbon Black Systems

open access: yesJournal of Applied Polymer Science, EarlyView.
Optimized potential of rCB via DOE: recovered carbon black from end‐of‐life tires was assessed as a full substitute for conventional carbon black in IIR composites. DOE and response surface methodology optimized rCB loading, plasticizer, and sulfur contents. Hardness showed linear trends, while rupture energy was nonlinear.
Vinícius Guedes Gobbi   +3 more
wiley   +1 more source

FLOOD RISK DUE TO EXTREME RAINS IN THE KARST OF THE CITY OF MÉRIDA YUCATÁN MEXICO

open access: yesTropical and Subtropical Agroecosystems, 2021
Background. Yearly hurricanes and tropical storms formed in the Atlantic are natural flooding hazards to The Yucatan Peninsula due to unplanned land use changes when new urban areas are to be developed on karstic soils such as in the case of the ...
Francisco Bautista, Yameli Aguilar
doaj   +1 more source

“ÍNDICE DE EFICIENCIA MIOCÁRDICA EN JUGADORES DE FÚTBOL ASOCIACIÓN EN PRETEMPORADA 2015 A 2600 METROS SOBRE EL NIVEL DEL MAR. TOLUCA, ESTADO DE MÉXICO” [PDF]

open access: yes, 2017
Resumen Objetivo. Determinar el índice de eficiencia miocárdica en jugadores de fútbol asociación en pretemporada 2015 a 2600 metros sobre el nivel del mar, Toluca, Estado de México. Material y métodos.
LÓPEZ RODRIGUEZ, SALVADOR   +1 more
core  

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

Análisis del perfil de aspirantes a carreras profesionalistas en una institución de educación superior aplicando técnicas de aprendizaje no supervisado [PDF]

open access: yes, 2006
Uno de los propósitos del quehacer de las Instituciones de Educación Superior es la promoción del nivel académico del alumnado, dotándolo de las herramientas necesarias para su eficaz desenvolvimiento en el campo profesional y científico, para lo cual es
Artola, María Antonia   +6 more
core  

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