Now showing items 21-40 of 341

    Del mejoramiento a la prevención de asentamientos informales : esquemas endógenos y sostenibles en ciudades intermedias de Nicaragua 

    Pérez Casas, Marc (Date of defense: 2016-07-05)

    The informal settlement’s associated predicament must be addressed by concurrent remediation and prevention urban policies. Nevertheless, the growing social pressure to respond to the situation through decent and effective ...

    Structural performance of FRP-concrete hybrid beams with flexible shear connection 

    Neagoe, Catalin Andrei (Date of defense: 2016-07-08)

    La sostenibilidad de los edificios y de las infraestructuras públicas es un tema de importancia reciente puesto en discusión por la comunidad de ingeniería. La necesidad de diseñar estructuras con bajos requerimientos de ...

    Daylight performance assessment of an innovative energy efficient building envelope 

    Casquero Modrego, Núria (Date of defense: 2016-07-12)

    Buildings are considered to be one of the primary contributors to the socioeconomic development of a country. However, they use a large portion of energy and available natural resources. With the industrialization leading ...

    Nuevo concepto de puente de vigas hinchables ligero, modular y portátil 

    Estruch i Tena, Carles (Date of defense: 2016-07-13)

    We propose to develop, build and validate a new Concept of Bridge composed of Inflatable Beams, Lightweight, Modular and Portable (PVH-LMP) for surface transport vehicles, which uses pressurized air-filled beams made of ...

    The role of persistent organic pollutants on Prochlorococcus photosynthetic capability under the global change scenario 

    Fernández Pinos, María del Carmen (Date of defense: 2016-07-15)

    This thesis aims to assess the effects of the complex mixture of organic pollutants on the Prochlorococcus photosynthetic capability, in field, and at sublethal level, in the multifactorial context of the global change. ...

    A hydrogeological approach in urban underground infrastructures 

    Serrano Juan, Alejandro (Date of defense: 2016-07-22)

    The competition for space in urban areas due to an exponential growth of population makes derground engineering plays a crucial role in the development of cities. Urban underground infrastructures deal with variables such ...

    High-resolution wave forecasting : the Catalan coast case : modelling, coupling and validation 

    Pallarès López, Elena (Date of defense: 2016-07-25)

    It is widely known that wind and wave predictions in the nearshore are less precise for semi enclosed domains than in the open ocean. The Catalan coast is a clear example of this situation, with a wave climate controlled ...

    In situ direct study of filtration and respiration rate of Mediterranean sponges = Estudio in situ de la filtración y la respiración de esponjas mediterráneas 

    Morganti, Teresa Maria (Date of defense: 2016-07-27)

    Sponges play important roles in the functioning of marine ecosystem in which they are abundant. These roles range from stabilizers of substrate, to acting as major link between benthic and pelagic realms by filtering large ...

    Mechanical performance and sustainability assessment of reinforced soil walls 

    Puig Damians, Ivan (Date of defense: 2016-07-28)

    Soil reinforced retaining wall structures are materiallymore efficientthan competing construction solutions such as gravity and cantilever walls. Nevertheless, the behaviour and interactions between the com ponent materials ...

    Tracing the dynamics of dissolved organic matter in marine systems exposed to natural and experimental perturbations 

    Aparicio Bernat, Francisco Luis (Date of defense: 2016-09-22)

    In the coming decades, global warming will affect the biogeochemical cycles evolution, particularly the carbon cycle. In this context, it is necessary to gain knowledge on the Earth natural mechanisms to relieve the ...

    Spatio-temporal processes explaining salp aggregations in the Catalan Sea, Northwestern Mediterranean 

    Pascual Torner, Maria (Date of defense: 2016-09-28)

    Salps are marine pelagic tunicates that have evolved opportunistic skills to bloom under favorable conditions and persist during adverse periods. They experience population outbursts (blooms) which, combined with their ...

    Sustainability in the post-disaster temporary housing management for urban areas 

    Hosseini, Seyed Mohammad Amin (Date of defense: 2016-09-30)

    Many people lose their homes every year due to natural disasters. One of the major challenges to mollify displaced persons is the provision of adequate post-disaster accommodations, temporary housing (TH) being the most ...

    Ecological study of benthic communities in the continental shelf and upper slope in the Menorca Channel (North Western Mediterranean) 

    Grinyó Andreu, Jordi (Date of defense: 2016-10-17)

    Technological development and increased availability of remotely operated vehicles and manned submersibles have significantly increased accessibility to deep environments revealing the presence of rich and diverse macrobenthic ...

    A coupled CFD-DEM model for sand production in oil wells 

    Climent Pera, Natalia (Date of defense: 2016-10-17)

    During the oil recovery a hole is drilled, the sandstone is left unsupported next to the cavity and disloged sand grains can enter the oil recovery system. This process is called sand production and several problems may ...

    New approach for efficient design of stainless steel RHS and SHS elements 

    Arrayago Luquin, Itsaso (Date of defense: 2016-10-17)

    This thesis investigates the cross-section and member behaviour of cold-formed stainless steel RHS and SHS elements and proposes an alternative and more efficient design approach. Combined with aesthetic appeal, exceptional ...

    Biology, ecology and ecophysiology of the box jellyfish Carybdea marsupialis (Cnidaria: Cubozoa) = Biologia, ecologia i ecofisiologia de la cubomedusa Carybdea marsupialis (Cnidaria: Cubozoa) 

    Acevedo Dudley, Melissa Judith (Date of defense: 2016-10-24)

    Over the last years, the sightings of the cubomedusa Carybdea marsupialis have increased in the Mediterranean Sea and this has been linked to an increase in its abundance. Consequently, this phD thesis addresses some ...

    Saharan dust deposition effects on production in the Mediterranean Sea 

    Gallisai, Rachelle (Date of defense: 2016-11-04)

    The potential capacity of fertilization of surface oceans by atmospheric deposition is of scientific interest. This is especially true in the oligotrophic Mediterranean Sea. Its surface waters are extremely poor in nutrients ...

    A direct performance based seismic design method for irregular structures : applications to concrete structures 

    Montoya Coronado, Luis Alberto (Date of defense: 2016-11-07)

    El diseño de estructuras para satisfacer niveles prestacionales, o de desempeño específico ha ganado interés en la ingeniería sismo resistente. Actualmente, existen varias metodologías de diseño sísmico basadas en prestaciones, ...

    Thermomechanical modelling of ground response under environmental actions. 

    Samat, Sergio (Date of defense: 2016-11-09)

    Natural disasters, such as landslides triggered by heavy rains, rock deformations and soil cracking in presence of temperature changes and other phenomena related to climatic actions, show the relevance of investigating ...

    Numerical techniques for non-linear analysis of structures combining discrete element and finite element methods 

    Santasusana Isach, Miquel (Date of defense: 2016-12-01)

    This works encompasses a broad review of the basic aspects of the Discrete Element Method for its application to general granular material handling problems with special emphasis on the topics of particle-structure interaction ...