Results 121 to 130 of about 402,251 (246)
La cohesión y la seguridad ciudadana : un enfoque global [PDF]
, 2010 El artículo revisa el concepto de cohesión social y la noción de seguridad, partiendo del análisis de los profundos desequilibrios y desigualdades sociales que el modelo económico dominante a escala global desde los años 1980 crea o intensifica en ...
Enríquez, D. +2 more
core
Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
wiley +1 more source
RIA: Revista Investigaciones Agropecuarias, 2015 El riego con aguas con alto contenido de sodio puede provocar el deterioro de las propiedades físico-mecá - nicas de los suelos. En el presente trabajo se trató de evidenciar el efecto del tratamiento con agua rica en sodio sobre esas propiedades en un ...
E. MELANI +3 more
doaj
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi +2 more
wiley +1 more source
La cohesión social y las relaciones Unión Europea-América Latina [PDF]
, 2006 Depto. de Relaciones Internacionales e Historia GlobalFac.
Cotler, Julio +2 more
core
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced 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
La cohesión y el conflicto en familias que enfrentan el consumo de alcohol y otras drogas una comparación transcultural México-Gran Bretaña [PDF]
, 2003 This paper presents a comparison of the results obtaines through the Interpersonal Relations subscale of the Family Environment Scale (Moos & Moos, 1981) in Mexico and England.
Copello, Alex +5 more
core +1 more source