Now showing items 38425-38444 of 77177

  • Hydrogen production from ethanol over Pd-Rh/CeO2 with a metallic membrane reactor 

    López, Eduardo; Jiménez Divins, Nuria; Llorca Piqué, Jordi (2012-10-15)
    Article
    Restricted access - publisher's policy
    The present paper reports on experimental results of an ethanol reformer equipped with a Pd-based metallic membrane toward the production of pure hydrogen, suited for PEM-fuel cell feeding. The ethanol steam reforming ...
  • Hydrogeological impact assessment by tunnelling at sites of high sensitivity 

    Pujades Garnes, Estanislao; Vázquez Suñé, Enric; Culi, Laura; Carrera Ramírez, Jesús; Ledesma Villalba, Alberto; Jurado Elices, Anna (2015-07)
    Article
    Restricted access - publisher's policy
    A tunnel for the High Speed Train (HST) was constructed in Barcelona with an Earth Pressure Balance (EPB) Tunnel Boring Machine (TBM). The tunnel crosses Barcelona and passes under some famous landmarks such as the Sagrada ...
  • Hydrolizable aromatic copolyesters of p-dioxanone 

    Giammanco, Giuseppe; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Muñoz Guerra, Sebastián (2010-09-13)
    Article
    Restricted access - publisher's policy
    Entropically driven ring-opening copolymerization of mixtures of a fraction of cyclic oligo(hexamethylene terephthalate)s composed of cycle sizes from 2 to 5 and p-dioxanone was used to prepare random copolyesters covering ...
  • Hydrological conceptual model characterisation of an abandoned mine site in semiarid climate: the Sierra de Cartagena-La Unión (SE Spain) 

    Robles Arenas, Virginia; Candela Lledó, Lucila (2010-09)
    Article
    Open Access
    A comprehensive study at Sierra de Cartagena-La Unión (SE Spain) abandoned mine site was carried out to characterise the regime and water quality of the groundwater system after the mine closure. The system consists of ...
  • Hydrological evaluation of a nowcasting technique applied to flood forecasting 

    Berenguer Ferrer, Marc; Dàvila, J.; Corral Alexandri, Carles; Sempere Torres, Daniel; Seed, Alan (American Meteorological Society, 2003)
    Conference report
    Open Access
  • Hydrological validation of a radar-based nowcasting technique 

    Berenguer Ferrer, Marc; Corral Alexandri, Carles; Sánchez-Diezma Guijarro, Rafael; Sempere Torres, Daniel (2005-08)
    Article
    Open Access
    Nowcasting precipitation is a key element in the anticipation of floods in warning systems. In this framework, weather radars are very useful because of the high resolution of their measurements both in time and space. ...
  • Hydrological variation modulates pharmaceutical levels and biofilm responses in a Mediterranean river 

    Osorio, Victoria; Proia, Lorenzo; Ricart, Marta; Pérez Solsona, Sandra; Ginebreda Marti, Antoni; Cortina Pallás, José Luís; Sabater Cortes, Sergi; Barceló Culleres, Damià (2013-02-15)
    Article
    Restricted access - publisher's policy
    The Llobregat is a Mediterranean river that is severely impacted by anthropogenic pressures. It is characterized by high flow variability which modulates its chemical and biological status. The present work evaluates the ...
  • Hydrolysis kinetics in anaerobic degradation of particulate organic material: an overview 

    Vavilin, Vasily; Fernández García, Belén; Palatsi Civit, Jordi; Flotats Ripoll, Xavier (2008-05-01)
    Article
    Restricted access - publisher's policy
  • Hydromechanical analysis in geotechnical engineering using the Material Point Method 

    Zabala García, Francisco; Alonso Pérez de Agreda, Eduardo (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2011)
    Conference report
    Restricted access - publisher's policy
    The explicit version of the Material Point Method has been extended in order to model coupled hydromechanical saturated problems. MPM discretizes the continuum, which is considered as a saturated soilfluid mixture, by ...
  • Hydromechanical behaviour of a heterogeneous compacted soil: experimental observations and modelling 

    Gens Solé, Antonio; Vállejan, Beatriz; Sánchez, M.; Imbert, Cristophe; Villar, Maria Victoria; Van Geetl, Maarten (2011-03)
    Article
    Open Access
    The paper describes a theoretical and experimental study of the coupled hydromechanical behaviour of a compacted mixture of bentonite powder and bentonite pellets intended as sealing material in underground repositories ...
  • Hydromechanical behaviour of a silty sand from a steep slope triggered by artificial rainfall : from unsaturated to saturated conditions 

    Casini, Francesca; Serri, Víctor; Springman, Sarah Marcella (2013-01)
    Article
    Restricted access - publisher's policy
    This paper presents an experimental investigation aimed at studying the hydromechanical behaviour of a silty sand from a steep slope in Ruedlingen in the northeast of Switzerland, where a landslide-triggering experiment ...
  • Hydromechanical behaviour of compacted granular expansive mixtures: experimental and constitutive study 

    Alonso Pérez de Agreda, Eduardo; Romero Morales, Enrique Edgar; Hoffmann Jauge, Christian (2011-04-01)
    Article
    Restricted access - publisher's policy
    Compacted granular mixtures of high-density bentonite pellets have been evaluated as an alternative buffer material to fill the empty space around nuclear waste disposal canisters in horizontal drifts. Despite the obvious ...
  • Hydromechanical modelling of multi-porosity clays 

    Gens Solé, Antonio; Vállejan, B; Sánchez, M. (2011)
    Conference report
    Restricted access - publisher's policy
    The paper addresses the issue of modelling the hydromechanical behaviour of swelling clays that exhibit evidence of multi-porosity. A double structure constitutive model developed for such materials is presented fi rst ...
  • Hydromet - Ampliación de una herramienta de cálculo hidrológico 

    Romero Caballero, Rafael (Universitat Politècnica de Catalunya, 2011-01-25)
    Master thesis (pre-Bologna period)
    Restricted access - confidentiality agreement
    El proyecto consiste en la ampliación de una herramienta de cálculo hidrológico, que realiza cálculos de previsión de inundaciones para redes de alcantarillado urbano. La ampliación consiste en la adición de un nuevo modelo ...
  • Hydrophobic amino acids at the cytoplasmic ends of helices 3 and 6 of rhodopsin conjointly modulate transducin activation 

    Bosch Presegué, Laia; Iarriccio Silva, Laura; Aguila Cerda, Mónica; Toledo, Darwin; Ramon Portés, Eva; Cordomí Montoya, Arnau; Garriga Solé, Pere (2011-02-15)
    Article
    Restricted access - publisher's policy
    Rhodopsin is the visual photoreceptor responsible for dim light vision. This receptor is located in the rod cell of the retina and is a prototypical member of the G-protein-coupled receptor superfamily. The structural ...
  • HYDROPTIM: An tool for simulation and optimisation of hydrological systems 

    Puig Cayuela, Vicenç; Romera Formiguera, Juli; Quevedo Casín, Joseba Jokin; Rodriguez, P; de Campos, Sergio (Internatinal Water Association (IWA), 2011)
    Conference report
    Restricted access - author's decision
    In this paper, a decision-support tool named HYDROPTIM has been developed that allows the flow management in a large scale water systems including reservoirs, open channels for water transport, water treatment plants, ...
  • Hydroptim: una herramienta para el control predictivo basado en modelos 

    Romera Formiguera, Juli; Rodriguez, P.; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; de Campos, Sergio (Grupo Tecnipublicaciones, 2012-02)
    Article
    Restricted access - publisher's policy
  • Hydrothermal Ageing of Cracked 3Y-TZP 

    García Marro, Fernando; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan (2011)
    Conference report
    Open Access
    En la circona dopada con 3% molar de itria, el vapor de agua puede inducir la transformación de la fase tetragonal a monoclínica en la superficie. Dicha transformación se extiende hacia el interior acompañada por la ...
  • Hydrothermal ageing of cracked of 3Y-TZP 

    García Marro, Fernando; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan (2011)
    Article
    Open Access
    En la circona dopada con 3% molar de itria, el vapor de agua puede inducir la transformación de la fase tetragonal a monoclínica en la superficie. Dicha transformación se ex tiende hacia el interior acompañada por la ...
  • Hydrothermal ageing of smooth and cracked 3Y-TZP 

    García Marro, Fernando; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan (2011)
    Conference report
    Restricted access - publisher's policy
    The effect of hydrothermal degradation on the flexural strength of smooth and indented specimens of tetragonal polycrystalline zirconia doped with 3% mol yttria (3Y-TZP) has been investigated. The specimens were exposed ...