Results 61 to 70 of about 618,789 (295)
Estimación de modelos de volatilidad en series de rendimientos bursátiles: 2000-2014
Pensamiento Crítico, 2015 Las series temporales de alta frecuencia observadas en los mercados financieros y cambiarios se caracterizan por ser asimétricas, leptocúrticas, agrupamiento de la volatilidad, mostrar una elevada persistencia en volatilidad, correlaciones en los ...
Rafael Bustamante Romaní
doaj +1 more source
In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy
Advanced Engineering Materials, EarlyView.A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal +4 more
wiley +1 more source
, 1978 Part of the collection: Ampol and Caltex photograph collection.; Title devised by cataloguer based on information supplied by donor.; Condition: Good.; Inscriptions: "Arch Fraley, Photographics, Corner Stuart & Stanley Streets, Townsville, Queensland ...
Fraley, Arch
core
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
View of the exterior of the Roselea Golden Fleece service station and restaurant [picture] /
, 1978 Part of the collection: Ampol and Caltex photograph collection.; Title devised by cataloguer based on information supplied by donor.; Condition: Good.; Inscriptions: "Arch Fraley, Photographics, Corner Stuart & Stanley Streets, Townsville, Queensland ...
Fraley, Arch.
core
Advanced Engineering Materials, EarlyView.A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge +8 more
wiley +1 more source
Journal of Chest Surgery, 2021 An 87-year-old man presented with a saccular aneurysm at the proximal descending thoracic aorta. As computed tomography revealed a shaggy aorta, we planned hybrid thoracic endovascular aortic repair (TEVAR) with embolic protection devices (EPDs) in ...
Eun Chae Kim +6 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon +3 more
wiley +1 more source
A Variant Branching Pattern of the Aortic Arch: A Case Report. [PDF]
, 2011 Variant aortic arch branching pattern may occur with different embryological mechanisms. We report on a variant aortic arch branching in a 41-year old Tanzanian male cadaver during dissection practice.
Rambau, Peter +11 more
core +1 more source