Search
Now showing items 13931-13939 of 13939
Hydrogenation of sunflower oil over M/SiO2 and M/Al2O3 (M = Ni, Pd, Pt, Co, Cu) catalysts
(Springer, 2016-03-11)
This work is aimed at evaluating the performance of several catalysts in the partial hydrogenation of sunflower oil. The catalysts are composed of noble (Pd and Pt) and base metals (Ni, Co and Cu), supported on both silica ...
Definición de un modelo para la gestión de la calidad de negocio (QOBIZ) en los servicios de telecomunicación
(2013)
Durante los últimos años, el concepto de calidad de servicio (QoS), en el ámbito de las telecomunicaciones, ha ido cambiando. El concepto de QoS, inicialmente vinculado al funcionamiento y rendimiento de las redes, se ha ...
The CODATwins Project: The Cohort Description of Collaborative Project of Development of Anthropometrical Measures in Twins to Study Macro-Environmental Variation in Genetic and Environmental Effects on Anthropometric Traits
(2015-05-27)
For over 100 years, the genetics of human anthropometric traits has attracted scientific interest. In particular,
height and body mass index (BMI, calculated as kg/m2) have been under intensive genetic research.
However, ...
Genetic and environmental effects on body mass index from infancy to the onset of adulthood: an individual-based pooled analysis of 45 twin cohorts participating in the COllaborative project of Development of Anthropometrical measures in Twins (CODATwins) study
(Elsevier, 2016-07-13)
Background: Both genetic and environmental factors are known to affect body mass index (BMI), but detailed understanding of how their effects differ during childhood and adolescence is lacking. Objectives: We analyzed the ...
Enantioselective Construction of Tetrasubstituted Stereogenic Carbons through Brønsted Base Catalyzed Michael Reactions: α´-Hydroxy Enones as Key Enoate Equivalent
(ACS, 2014-11-25)
Catalytic and asymmetric Michael reactions constitute very powerful tools for the construction of new C–C bonds in synthesis, but most of the reports claiming high selectivity are limited to some specific combinations of ...
Síntesis enantio- y diastereocontrolada de aminas y alcoholes propargílicos mediante reacciones de Mannich y aldólica organocatalíticas
(2015-12-16)
Las unidades estructurales que contienen aminas o alcoholes propargílicos están presentes en muchos compuestos biológicamente activos y/o son importantes precursores para su síntesis. Por ello, han sido notables los esfuerzos ...
Aldehídos en reacciones de Michael enantioselectivas catalizadas por derivados del prolinol
(2012-04-10)
El trabajo que se recoge en la presente memoria está enmarcado en el
área de la organocatálisis asimétrica. Más concretamente, se describe la
funcionalización de aldehídos en posiciones ¿ y ß mediante reacciones de ...
Status and advances in Electric Vehicle’s power modules packaging technologies
(VDE, 2016-05-10)
The technology used in the design of the high power density Electric Vehicle (EV) power inverters packaging (power modules electrical, thermal and thermo-mechanical properties) directly
affect the power inverter performance, ...