Exploració per tema "Porosity"

Ara es mostren els items 41-53 de 53

    • Recent progress on biodegradable tissue engineering scaffolds prepared by thermally-induced phase separation (TIPS) 

      Zeinali, Reza; Valle Mendoza, Luis Javier del; Torras Costa, Juan; Puiggalí Bellalta, Jordi (2021-03-28)
      Article
      Accés obert
      Porous biodegradable scaffolds provide a physical substrate for cells allowing them to attach, proliferate and guide the formation of new tissues. A variety of techniques have been developed to fabricate tissue engineering ...

    • Recycled mortars with ceramic aggregates. Pore network transmutation and its relationship with physical and mechanical properties 

      Cabrera Covarrubias, Francisca Guadalupe; Gómez Soberón, José Manuel Vicente; Rosas Casarez,, Carlos Antonio; Almaral Sánchez, Jorge Luis; Bernal Camacho, J.M. (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-02)
      Article
      Accés obert
      The porosity of mortars with recycled ceramic aggregates (10, 20, 30, 50, and 100% as a replacement of natural aggregate) was evaluated and analyzed using three different techniques. The results of gas adsorption (N2), ...

    • Relationship between gas adsorption and the shrinkage and creep of recycled aggregate concrete 

      Gómez Soberón, José Manuel Vicente (2003)
      Article
      Accés obert
      In this work, it is described an experimental analysis of specimens of recycled concrete (RC) with replacement of natural aggregate with recycled aggregate originating from concrete (RCA). An experimental analysis to obtain ...

    • Repercussions on concrete permeability due to recycled concrete aggregate 

      Gómez Soberón, José Manuel Vicente; Agulló Fité, Luís; Vázquez Ramonich, Enric (V.M. Malhotra, 2001)
      Comunicació de congrés
      Accés obert
      This paper presents an experimental analysis of recycled concrete (RC) in which the natural aggregates are replaced by recycled concrete aggregates (RCA). This experimental program covers the specifications of the aggregates ...

    • Residue strength, water absorption and pore size distributions of recycled aggregate concrete after exposure to elevated temperatures 

      Kou, Shi-Cong; Poon, Chi-Sun; Etxeberria Larrañaga, Miren (2014-10)
      Article
      Accés restringit per política de l'editorial
      In this paper, the effects of high temperature exposure of recycled aggregate concretes in terms of residual strengths, capillary water absorption capacity and pore size distribution are discussed. Two mineral admixtures, ...

    • SEM image analysis in permeable recycled concretes with silica fume. A quantitative comparison of porosity and the ITZ 

      Chinchillas Chinchillas, Manuel de Jesús; Rosas Casarez,, Carlos Antonio; Arredondo Rea, Susana Paola; Gómez Soberón, José Manuel Vicente; Corral Higuera, Ramón (Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-01)
      Article
      Accés obert
      Recycled aggregates (RA) from construction and demolition can be used in permeable concretes (PC), improving the environment. PCs have a significant porous network, their cement paste and the interaction between the paste ...

    • Skeletonless porosimeter simulation 

      Rodríguez, Jorge; Cruz Matías, Irving; Vergés Garcia, Eduard; Ayala Vallespí, M. Dolors (2010)
      Report de recerca
      Accés obert
      We introduce a new approach to simulate a virtual mercury intrusion porosimetry (MIP) using neither skeleton computing nor seed-growing methods. Most of the existing methods to determine local pore sizes in a porous medium ...

    • Structural parameters 

      Ayala Vallespí, M. Dolors; Vergés, Eduard (2010-02)
      Report de recerca
      Accés obert
      The development of the bioengineering field has yield to the apparition of a new application of the Computer-Aided-Design, Bio-CAD, aiming to the use of computer models to represent biological samples and methods to simulate ...

    • Time decay for porosity problems 

      Baldonedo, Jacobo; Fernández, Jose R.; Quintanilla de Latorre, Ramón (2022-05-30)
      Article
      Accés obert
      In this paper, we numerically study porosity problems with three different dissipa- tion mechanisms. The root behavior is analyzed for each case. Then, by using the finite element method and the Newmark- scheme, fully ...

    • Two different strategies to enhance osseointegration in porous titanium: Inorganic thermo-chemical treatment versus organic coating by peptide adsorption 

      Ortiz Hernández, Mónica; Rappe, K.; Molmeneu Trias, Meritxell; Mas Moruno, Carlos; Guillem Martí, Jordi; Punset Fuste, Miquel; Caparrós, Cristina; Calero Martínez, José Antonio; Franch, Jordi; Fernández Fairén, Mariano; Gil, Javier (2018-08-30)
      Article
      Accés obert
      In this study, highly-interconnected porous titanium implants were produced by powder sintering with different porous diameters and open interconnectivity. The actual foams were produced using high cost technologies: ...

    • ¿Una habitación por consenso?: la calle que estamos construyendo en los enclaves residenciales y lo que podemos hacer para recuperarla: el caso de Bogotá. 

      Bermúdez Obregón, Ramón (Universitat Politècnica de Catalunya / Universidad Nacional de Colombia / Pontificia Universidad Javeriana de Bogotá / Universidad de Los Andes / Universidad Piloto de Colombia, 2022-01-19)
      Text en actes de congrés
      Accés obert
      “La calle es una habitación por consenso” (Kahn,1971), donde las edificaciones que la delimitan son las encargadas de otorgarle su propósito y carácter (Monteys, 2017). Esta ponencia parte de esta premisa para proponer una ...

    • Void content minimization in vacuum infusion (VI) via effective degassing 

      Juan Muñoz, Jaime; Silva, Arlindo; Tornero García, José Antonio; Gamez Pérez, José; Salán Ballesteros, Maria Núria (Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-27)
      Article
      Accés obert
      This paper addresses the major concern which component porosity represents in Vacuum Infusion (VI) manufacturing due to resin gelation at pressures close to absolute vacuum. Degassing is a fundamental step to minimize or ...

    • X-ray photoelectron spectroscopy (XPS) study of surface oxidation of UO2 doped with Gd2O3 at different temperatures and atmospheres 

      García Gómez, Sonia; Giménez Izquierdo, Francisco Javier; Casas Pons, Ignasi; Llorca Piqué, Jordi; Pablo Ribas, Joan de (2023-08)
      Article
      Accés obert
      In this work, the influence of GdIII doping on the surface oxidation of UO2 has been investigated in situ by XPS. The samples were put in contact with either hydrogen, argon or synthetic air streams saturated with water ...