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Mostrando ítems 2321-2330 de 2336
Notas referidas a Petrarca en los índices de Francesco da Barberibo del Vat. lat. 3217
(Universidad de Santiago de Compostela, 2008)
Francesco da Barbarino y el Zibaldone Colocciano 3217
(De Gryter, 2007)
El códice Vat. Lat. 3217, perteneciente al humanista italiano Angelo Colocci, que pasó a la biblioteca de Fulvio Orsini (el cual escribe de su propia mano el título que lo encabeza: “Index verborum seu vocum collectus per ...
Correlation between microstructure and creep behavior in liquid-phase-sintered α-Silicon Carbide
(The American Ceramic Society, 2006)
The influence of increasing the sintering time from 1 to 7 h on the microstructure evolution and the mechanical properties at high temperature was studied in α-silicon carbide (α-SiC) sintered in argon atmosphere with ...
A critical assessment of the dislocation-driven model for superplasticity in yttria tetragonal zirconia polycrystals
(The American Ceramic Society, 2008)
In this paper, the origin of the threshold stress in pure 3 mol %-yttria tetragonal zirconia polycrystals (YTZP) is analysed in detail. At this regard, the two explanations reported in literature are discussed thoroughly. ...
α-Al2O3 sapphire and rubies deformed by dual basal slip at intermediate temperatures (900–1300 °C): I. Dislocation organization
(Elsevier, 2009)
Under a load orientation that hinders twinning and impedes fracture, sapphire and Cr-doped α-Al2O3 single crystals (rubies) were deformed from 1500 °C to slightly above the brittle to ductile transition temperature of 900 ...
Effect of atmosphere and sintering time on the microstructure and mechanical properties at high temperatures of alpha-SiC sintered with liquid phase Y2O3-Al2O3
(Elsevier, 2006)
The influence that the atmosphere (N2 or Ar) and sintering time have on microstructure evolution in liquid-phase-sintered α-SiC (LPS-α-SiC) and on its mechanical properties at high temperature was investigated. The ...
α-Al2O3 sapphire and rubies deformed by dual basal slip at intermediate temperatures (900–1300 °C): II. Dissociation and stacking faults
(Elsevier, 2009)
Sapphire and rubies (undoped and Cr-doped α-Al2O3 single crystals) have been deformed in compression at temperatures lower than those previously used in studies of dislocations in the basal slip plane. Above 1400 °C, several ...
Two independent apolipoprotein A5 haplotypes modulate postprandial lipoprotein metabolism in a healthy caucasian population
(Endocrine Society, 2007)
Background: Apolipoprotein A5 (APOA5) plays an important role in plasma triacylglycerol (TG) homeostasis. Five polymorphisms (1131T>C, c.-3A>G, c.56C>G, IVS3+476G>A, and c.1259T>C) in the APOA5 gene define three common ...
A single nucleotide polymorphism of the apolipoprotein A-V gene -1131T>C modulates postprandial lipoprotein metabolism
(Elsevier, 2006)
The Apolipoprotein A–V (apoA–V) gene promoter polymorphism −1131T > C modulates triacylglycerol (TG) concentrations. We evaluate whether this polymorphism could be involved in the interindividual variability observed during ...