• Technologies and capability approach: a framework for solar energy development projects 

      Gonzalez-Herrera, Antonio; López-Toro, Alberto Antonio (2014-07-17)
      The implementation of solar energy development projects in isolated rural communities involves a large technological change for the beneficiaries. Despite these development projects imply direct basic need coverage (in ...
    • Tecnología y desarrollo humano desde el enfoque de capacidades. Energía solar en comunidades aisladas de Bolivia 

      Gonzalez-Herrera, Antonio; López-Toro, Alberto Antonio (2014-06-23)
      La energía solar llevada a una comunidad rural aislada supone un cambio tecnológico importante. Este trabajo pretende aplicar a nivel teórico el enfoque de capacidades para identificar las dimensiones o factores de conversión ...
    • The ring compression test: Analysis of dimensions and canonical geometry 

      Martín-Fernández, Francisco de Sales (2015-10-13)
      The compression ring test is universally accepted as a perfectly valid method by which determine simply and reliably the adhesion friction factor in a plastic deformation process. Its methodology is based on the application ...
    • Through thickness evolution of crack tip plasticity 

      Camas, Daniel; Lopez-Crespo, Pablo; Antunes, F.V.; Yates, J. R. (2017-07-19)
      Experimental methods to measure fracture mechanics parameters tend to provide information from or about the surface of cracked components. However, information about the interior of the component is key to understanding ...
    • Upper bound solutions of ring compression test 

      Martín-Fernández, Francisco de Sales; Sevilla-Hurtado, Lorenzo; Camacho, Ana; Sebastián, Miguel Ángel (2013-07-04)
      El presente trabajo aborda una particularización del proceso de forja, estudiando la deformación de un anillo. El conformado plástico se realiza mediante el empleo del Teorema del Límite Superior y siguiendo el modelo de ...
    • The Upper Bound Theorem in forging processes: Model of Triangular Rigid Zones on parts with horizontal symmetry 

      Martín-Fernández, Francisco de Sales; Cañero Nieto, Juan Miguel; Martin-Sanchez, Maria Jesus; Maldonado, Diego (2019-07-10)
      The analysis to determine the necessary forces with which to achieve a plastic deformation in metallic materials, in particular, in forging processes and under conditions of plain strain, has been raised over the years ...
    • Use of additive manufacturing on models for sand casting process 

      Martín Béjar, Sergio; Bermudo Gamboa, Carolina; Trujillo Vilches, Francisco Javier; Sevilla-Hurtado, Lorenzo (Universidad Politécnica de Cartagena, 2018-06)
      Casting is a forming process based on material pouring in liquid state. Heat is applied to melt the material from its solid state and pour it in a mold previously constructed to obtain the desired shape after letting it ...