Now showing items 74-80 of 80

    • Sustainable unfired bricks manufacturing from construction anddemolition wastes 

      Seco Meneses, Andrés Upna; Omer, Joshua; Marcelino Sádaba, Sara Upna; Espuelas Zuazu, Sandra Upna; Prieto Cobo, Eduardo Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      The management of construction and demolition wastes is a huge challenge for most Governments. Thegreatest component of such wastes is concrete and masonry fragments or remains. Among the most com-mon approaches to ...
    • Synthetic images for evaluating topographic correction algorithm 

      Sola Torralba, Ion Upna; González de Audícana Amenábar, María Upna; Álvarez-Mozos, Jesús Upna; Torres Escribano, José Luis Upna (IEEE, 2013)   Artículo / Artikulua  OpenAccess
      In the last years, many topographic correction (TOC) methods have been proposed to correct the illumination differences between the areas observed by optical remote sensors. Although the available number of TOC methods is ...
    • Technical and environmental characterization of hydraulic and alkaline binders 

      Espuelas Zuazu, Sandra Upna; Echeverría, Angel María Upna; Marcelino Sádaba, Sara Upna; Prieto Cobo, Eduardo Upna; Seco Meneses, Andrés Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      Portland cement is a widely used binder in construction and building applications because of its good properties. Despite its convenience as construction material, the social demands and policies trends are requesting a ...
    • Tipología, tipometría y técnicas escultóricas utilizadas en las estelas de Navarra 

      Ukar Muruzábal, Jesús Upna (Gobierno de Navarra. Institución Príncipe de Viana, 1993)   Artículo / Artikulua  OpenAccess
      Este trabajo pretende diferenciar formalmente una serie de modelos de estelas discoideas, en base a la estructura del disco, del pie, del canto y de las relaciones entre ellos.
    • Understanding top management's decision-making on implementing project management systems: an exploratory study 

      Arraiza Irujo, Juan; Pérez Ezcurdia, Amaya Upna (Mechanical Engineering Faculty in Slavonski Brod, 2017)   Artículo / Artikulua  OpenAccess
      Top Management’s motivation to invest in improving their organisation’s Project Management processes and practices is arguably an important under-researched phenomenon. In this paper we present the results of an exploratory ...
    • Validation of a simplified model to generate multispectral synthetic images 

      Sola Torralba, Ion Upna; González de Audícana Amenábar, María Upna; Álvarez-Mozos, Jesús Upna (MDPI, 2015)   Artículo / Artikulua  OpenAccess
      A new procedure to assess the quality of topographic correction (TOC) algorithms applied to remote sensing imagery was previously proposed by the authors. This procedure was based on a model that simulated synthetic scenes, ...
    • Watering or buffering? Runoff and sediment pollution control from furrow irrigated fields in arid environments 

      Campo-Bescós, Miguel Upna; Muñoz Carpena, Rafael Upna; Kiker, Gregory A.; Bodah, Brian W.; Ullman, Jeffrey L. (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      Surface irrigated agriculture in arid and semi-arid regions contributes to downstream environmental degradation. Changes in irrigation system operational scenarios (ISOS) can represent an economic alternative to reduce ...