Now showing items 5005-5024 of 5563

    Structural behaviour and plastic design of carbon and stainless steel frames in fire 

    Segura Valdivieso, Guillermo (Date of defense: 2023-09-22)

    (English) This thesis investigates the response of carbon and stainless steel frames in fire, and proposes new and more efficient approaches for their design. The investigation is mainly focused on one bay frames comprised ...

    Structural behaviour of masonry arches on moving supports : from on-site observation to experimental and numerical analysis 

    Ferrero, Chiara (Date of defense: 2021-07-20)

    Since ancient times, master builders have used arches to cover large spans in masonry structures. As a consequence, nowadays the safety assessment of these structural elements plays a fundamental role in the conservation ...

    Structural behaviour of stainless steel frames. Safety against accidental seismic actions 

    González de León, Isabel (Date of defense: 2023-05-19)

    (English) Stainless steel is one of the most promising construction materials due to its long service life, low maintenance requirements, excellent mechanical properties and high residual value. Nevertheless, for an efficient ...

    Structural behaviour of tapered steel plate girders subjected to shear 

    Bedynek, Agnieszka (Date of defense: 2014-03-31)

    Tapered plate girders often form part of large-scale structures such as long continuous bridges or industrial buildings where due to considerable loads the higher resistance is required. There are several important reasons ...

    Structural damage monitoring based on machine learning and bio-inspired computing 

    Vitola Oyaga, Jaime (Date of defense: 2021-01-28)

    For a few decades, systems for supervising structures have become increasingly irnportant. In origin, the strategies had as a goal only the detection of damages. Furthermore, now monitor­ing the civil or military structures ...

    Structural design and characterisation of FRC precast segments 

    Liao, Lin (Date of defense: 2015-09-25)

    Concrete technology has changed greatly in the past decades. Steel fibre reinforced concrete (SFRC) is an example of the development in this field. It is obtained by adding fibres that act as a reinforcement of the cement ...

    Structural diagnosis of masonry heritage : contributions to non-destructive testing, structural health monitoring and risk assessment. 

    Makoond, Nirvan Chandra (Date of defense: 2020-12-16)

    Many cultural heritage sites across the globe consist of masonry structures. To ensure the preservation of such structures, an accurate evaluation of their current structural condition is often of utmost importance. However, ...

    Structural performance of continuous composite bridges with partial shear connection and double composite action 

    Su, Hang (Date of defense: 2023-06-19)

    (English) The steel-concrete composite structural solution has been widely applied in the execution of simply supported bridges since the merits of concrete compressive strength and steel tensile strength can be efficiently ...

    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 ...

    Structural response of precast concrete segmental tunnel linings 

    Arnau Delgado, Oriol (Date of defense: 2012-03-16)

    The increasing use of the tunnel boring machines (TBMs) has entailed their own evolution and the improvement of the construction processes applied, allowing the construction of tunnels on more complex hydro-geological ...

    Structural studies of AT-rich DNA 

    Acosta Reyes, Francisco Javier (Date of defense: 2016-05-26)

    Non-coding DNA is rich in adenines and thymines. Their unique properties, such as high polymorphism, flexibility, transitional states that lead to DNA hairpin formation and the possibility to adopt either Watson-Crick or ...

    Structural system identification by dynamic observability technique 

    Peng, Tian (Date of defense: 2021-05-21)

    Structure system identification (SSI) can be classified as static and dynamic depending on the type of excitation. SSI by Observability Method (OM) using static tests was proposed and analyzed to address the observability ...

    The structure and dynamics of complex microbe-host interaction networks 

    Björk, Johannes (Date of defense: 2016-06-03)

    Microbes form intricate and intimate relationships with most animals and plants, many of which are crucial for host development, health and functioning. Microbe--host symbiotic associations are poorly explored in comparison ...

    Structure discovery techniques for circuit design and process model visualization 

    San Pedro Martín, Javier de (Date of defense: 2017-10-27)

    Graphs are one of the most used abstractions in many knowledge fields because of the easy and flexibility by which graphs can represent relationships between objects. The pervasiveness of graphs in many disciplines means ...

    Structure-activity investigation on laccases by computational and site directed mutagenesis studies 

    Delavari, Azar (Date of defense: 2016-12-01)

    Laccases belong to multi copper oxidase enzyme family (EC 1.10.3.2). Their capacity to oxidíze a wide range of substrates makes them very attractive for the industry and are growing in importance for environmentally-friendly ...

    Structure-function studies of bombesin and bradykinin receptors and their ligands for new therapeutic opportunities 

    Rasaeifar, Bahareh (Date of defense: 2020-12-10)

    G-protein coupled receptors represents the largest family of membrane protein in eukaryotes cells with more than 800 members. The reason of their importance lies in their function, being responsible for the primary mechanism ...

    Studies on organic solar cells based on small-molecules : tetraphenyldibenzoperiflanthene and fullerene C70 

    Galindo Lorente, Sergi (Date of defense: 2015-11-18)

    This work deals with the research on organic solar cells based on small-molecules semiconductors. In particular, organic solar cells of this thesis have been used tetraphenyldibenzoperiflanthene as donor material and ...

    Study and application of spectral monitoring techniques for optical network optimization 

    Locatelli, Fabiano (Date of defense: 2021-11-18)

    One of the possible ways to address the constantly increasing amount of heterogeneous and variable internet traffic is the evolution of the current optical networks towards a more flexible, open, and disaggregated paradigm. ...

    Study and characterisation of surface integrity modification after ultrasonic vibration-assisted ball burnishing 

    Jerez Mesa, Ramón (Date of defense: 2018-03-02)

    This dissertation is an experimental research project into the mechanical effects of the ultrasonic vibration-assisted ball burnishing process on the surface integrity of surfaces machined through ball-end milling. Due to ...

    Study and characterization of mechanical properties of wood-PLA composite (Timberfill) material parts built through fused filament fabrication 

    Zandi, Mohammad Damous (Date of defense: 2020-07-17)

    This research is based upon the additive manufacturing (AM) technology which aims to study the mechanical properties of innovative commercial wood-PLA composite material (Timberfill) and characterize its behavior. Specifically ...