Now showing items 4066-4085 of 5424

    Optimización del proceso de diseño de los planos de la señalización de seguridad 

    Ubieto Artur, Pedro (Date of defense: 2012-03-23)

    The placement of safety signs on buildings and crowded public places and work places is usually done quickly and not always effectively. Generally, the financial budget dedicated to this facility, taking into account that ...

    Optimización térmica y energética de la doble fachada acristalada con ventilación mecánica en clima mediterráneo 

    Cuerva Contreras, Eva (Date of defense: 2013-11-04)

    El diseño de edificios siguiendo criterios de sostenibilidad y eficiencia energética se ha convertido en un imperativo en los países desarrollados, sobre todo a raíz de la Directiva europea 2010/31/UE sobre Eficiencia ...

    Optimization and generalization of lifting schemes: application to lossless image compression 

    Solé Rojals, Joel (Date of defense: 2006-06-29)

    This Ph.D. thesis dissertation addresses multi-resolution image decomposition, a key issue in signal processing that in recent years has contributed to the emergence of the JPEG2000 image compression standard. JPEG2000 ...

    Optimization and muscle synergy approaches for studying muscle redundancy during walking 

    Serrancolí Masferrer, Gil (Date of defense: 2015-04-08)

    The human body is an over-actuated multibody system, as each joint degree of freedom can be controlled by more than one muscle. Usually, optimization techniques are used to solve the muscle force sharing problem, that is, ...

    Optimization in graphs under degree constraints. application to telecommunication networks 

    Sau Valls, Ignasi (Date of defense: 2009-10-16)

    La premi ere partie de cette th ese s'int eresse au groupage de tra c dans les r eseaux de t el ecommunications. La notion de groupage de tra c correspond a l'agr egation de ux de faible d ebit dans des conduits de ...

    Optimization methods for the design of progressive lenses 

    Casanellas, Glòria (Date of defense: 2020-03-05)

    This work is the result of an Industrial Doctorate developed through a partnership agreement between the Universitat Politècnica de Catalunya and the company Horizons Optical. This thesis solves the complex design of ...

    Optimization of a CSI inverter and DC/DC elevator with silicon carbide devices, for applications in electric traction systems 

    Fernández Palomeque, Efrén Esteban (Date of defense: 2019-03-20)

    The applications of electric traction systems currently focus on developing technologies with greater energy efficiency and lower environmental impact. Manufacturers of hybrid and electric vehicles are looking for ways to ...

    Optimization of alpha emitter's determination in water. Behavior of radionuclides in water treatment plants 

    Montaña Guerra, Montserrat (Date of defense: 2013-07-24)

    La determinació de l’índex alfa total en aigües és d’interès per ser un dels paràmetres inclòs en la legislació nacional e internacional associada a la qualitat de l’aigua per al consum humà. Aquest índex informa de la ...

    Optimization of design procedures and quality control for FRC 

    Galeote Moreno, Eduardo (Date of defense: 2018-12-14)

    Fibre reinforced concrete (FRC) presents objectively proven advantages in terms of post-cracking strength and manufacturing procedures. As a result, FRC with structural responsibility is increasingly being used in the ...

    Optimization of emerging extended FTTH WDM/TDM PONs and financial overall assessment 

    Chatzi, Sotiria (Date of defense: 2013-11-26)

    Optical access technology has experienced a boost in the last years, thanks to the continuously migrating multimedia services that are offered over the internet. Though the technologies used for deploying Fiber-To-The-x ...

    Optimization of field matching in external photon beam radiation therapy 

    Hernández Masgrau, Víctor (Date of defense: 2013-11-07)

    Radiation therapy is one of the main modalities used for treating cancer patients, together with surgery and chemotherapy. Radiotherapy treatments can be carried out with a great variety of devices, but most treatments are ...

    Optimization of interplanetari trajectories with gravity assist 

    Torre Sangrà, David de la (Date of defense: 2020-07-28)

    Interplanetary travel is a difficult task due to the high fuel mass required to reach other planets. Minimizing the cost of the manoeuvres (and, in turn, the fuel mass) is the objective preliminary mission design. During ...

    Optimization of positioning capabilities in wireless sensor networks : from power efficiency to medium access 

    Moragrega Estrany, Anna (Date of defense: 2016-02-04)

    In Wireless Sensor Networks (WSN), the ability of sensor nodes to know its position is an enabler for a wide variety of applications for monitoring, control, and automation. Often, sensor data is meaningful only if its ...

    Optimization of Segmentation-Based Video Sequence Coding Techniques. Application to content based functionalities 

    Morros Rubió, Josep Ramon (Date of defense: 2004-12-23)

    En aquest treball s'estudia el problema de la compressió de video utilitzant funcionalitats basades en el contingut en el marc teòric dels sistemes de codificació de seqüències de video basats en regions. Es tracten ...

    Optimization of yard operations in container terminals from an energy efficiency approach 

    Terán Cobo, Pablo (Date of defense: 2018-06-25)

    This Thesis addresses common operational issues related to maritime container terminals. In the last decades, containerization of maritime transportation has grown very rapidly, forcing terminal operators to cope with ...

    Optimization on industrial problems focussing on multi-player strategies 

    Coma Company, Martí (Date of defense: 2022-07-26)

    Algorithms (EA) are useful optimization methods for exploration of the search space, but they usually have slowness problems to exploit and converge to the minimum with accuracy. On the other hand, gradient based methods ...

    Optimization strategies for efficient dosage of H2O2 in Fenton and photo-Fenton processes 

    Yu, Xiangwei (Date of defense: 2021-07-07)

    This Thesis work addresses the challenge of designing hydrogen peroxide (H2O2) dosage Strategies for improving Fenton and photo-Fenton applications. The determination of the H2O2 dosage scheme that minimizes hydrogen ...

    Optimization techniques for fine-grained communication in PGAS environments 

    Alvanos, Michail (Date of defense: 2013-12-10)

    Partitioned Global Address Space (PGAS) languages promise to deliver improved programmer productivity and good performance in large-scale parallel machines. However, adequate performance for applications that rely on ...

    Optimized content caching strategies for multi-access edge computing (MEC)-assisted future cellular networks 

    Ayenew, Tadege Mihretu (Date of defense: 2023-11-21)

    (English) Handling the tsunami of multimedia content is a big challenge for heterogeneous cellular networks. Serving large volumes of content from the central system to end-users, through a bandwidth-limited network, at ...

    Optimizing IETF multimedia signaling protocols and architectures in 3GPP networks : an evolutionary approach 

    Viamonte Solé, David (Date of defense: 2019-06-16)

    Signaling in Next Generation IP-based networks heavily relies in the family of multimedia signaling protocols defined by IETF. Two of these signaling protocols are RTSP and SIP, which are text-based, client-server, ...