Results 101 to 110 of about 201,022 (311)

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

Cuidados de saúde à família migrante doente. Da formação à prática clínica [PDF]

open access: yes, 2018
A comunicação que se apresenta teve como ponto de partida a prática clínica dos enfermeiros com famílias migrantes apresenta dificuldades na promoção da sua saúde e na gestão de situações de doença; e a necessidade de desenvolver estratégias pedagógicas
Reis, Alcinda, Spínola, Ana
core  

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

La seguridad social en el derecho de integración subregional de América Latina y el Caribe

open access: yesRevista Latinoamericana de Derecho Social, 2019
La seguridad social es un derecho privilegiado que se reconoce de manera insistente tanto en los organismos internacionales como en los procesos regionales y subregionales de integración económica y social en América Latina y el Caribe.
Guillermo Alfonso Maldonado Sierra
doaj   +1 more source

Solidaridad étnica y capital social: el caso de los comerciantes migrantes kichwa-Otavalo en Madrid y La Compañía (Estudios) [PDF]

open access: yes, 2012
En el análisis sobre migrantes, en general, y sobre migrantes descritos como grupos étnicos, en concreto, se tiende a presuponer un tipo de “solidaridad étnica” dentro de sus redes sociales.
Célleri, Daniela, Jüssen, Lara
core  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Imbricaciones conflictivas: apuntes en torno a los procesos de estructuración social y configuración simbólica en contextos interculturales

open access: yesQuestion, 2011
Este artículo aborda interrogantes acerca de los procesos de estructuración social y configuración simbólica en contextos interculturales. De esta manera, se reflexiona en torno a las dinámicas de constitución de un comedor comunitario en la ciudad de La
Federico Rodrigo
doaj  

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland   +5 more
wiley   +1 more source

Transmission of Staphylococcus aureus from humans to green monkeys in the Gambia as revealed by whole-genome sequencing [PDF]

open access: yes, 2013
En el marco de la actual crisis económica internacional y las consecuentes políticas de ajuste estructural adoptadas por el gobierno de España desde 2008, la investigación desarrollada centró su atención en los impactos diferenciados sobre un grupo de ...
Weinstock, George, et al,
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

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