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Now showing items 12951-12960 of 13959
FEM Subsystem Replacement Techniques for Strength Problems in Variable Geometry Trusses
(Elsevier, 2007-12-01)
This work presents the application of a procedure for replacing FEM subsystems with a high number of dofs (possibility of including mobile internal parts) using equivalent parametric macroelements (EPMs) with a much reduced ...
A Metamodeling Technique for Variable Geometry Trusses Design via Equivalent Parametric Macroelements
(ASME, 2009-09-03)
A metamodeling methodology is applied to reduce the large computational cost required in the design of variable geometry trusses (VGTs). Using this methodology, submodels of finite elements within a complete FE model of ...
Parametric study of the operational and economic feasibility of Stirling micro-cogeneration devices in Spain
(Elsevier, 2013-12-19)
This paper analyses the operational and economic viability of Stirling engine-run micro-cogeneration units in single-family houses in Spain. Thermal demands for the reference dwelling, sited in three different and ...
Provisioning ecosystem services supply and demand: the role of landscape management to reinforce supply and promote synergies with other ecosystem services
(Elsevier, 2015-03-14)
Currently, trade enables regions to have a higher provisioning ecosystem services (ES) demand than that provided by ecosystems in the same region. This practice leads to a supply and demand provisioning ES scale mismatch, ...
A comparative thermodynamic study on the CO2 conversion in the synthesis of methanol and of DME
(Elsevier, 2017-02-01)
A thermodynamic approach of the synthesis processes of methanol and DME from H2+CO+CO2 has been conducted, in order to compare the feasibility of incorporating CO2 in the feed of both processes. The effects of reaction ...
Semantically enhanced network analysis for influencer identification in online social networks
(Elsevier, 2017-09-20)
Influencers in a social network are members that have greater effect in the online social network (OSN) than the average member. In the specific social networks known as communities of practice, where the focus is an ...
Propiedades estructurales y electrónicas de las aleaciones bidimensionales de GdAg2/Ag(111) y de GdAu2/Au(111)
(2017-09-07)
El trabajo experimental, en que se fundamenta esta tesis, tiene como objetivo la caracterización de las propiedades estructurales y electrónicas de aleaciones 2-dimensionales de gadolinio con las superficies de plata y ...
Development and comparative analysis of the modeling of an innovative finned-plate latent heat thermal energy storage system
(Elsevier, 2013-09-01)
This paper presents an innovative finned-plate latent heat thermal energy storage system for its integration in cogeneration systems. For optimization purposes it is very important to maximize the efficiency of the ...
Análisis de la condición física en jugadores y jugadoras de tenis de mesa y su relación con el rendimiento deportivo
(Ramón Cantó Alcaraz, 2017)
Los objetivos de este estudio fueron analizar el perfil físico de jugadores de tenis de mesa, observar si existí- an diferencias en función del género en las pruebas realizadas y determinar si existía alguna relación entre ...
Sediment toxicity and bioaccumulation assessment in abandoned Copper and Mercury mining areas of the Nalón River basin (Spain)
(Springer, 2014-11-06)
Sediment toxicity and metal bioaccumulation were assessed at sites affected by historical copper (Cu)
and mercury (Hg) mining activities in the Nalón River basin, Asturias, Spain. Toxicity assessment of stream sediments ...