Browsing by Subject "62"
Now showing items 1-20 of 1322
3D audio technologies : applications to sound capture, post-production and listener perception
La llegada del sonido 3D está imponiendo cambios en varias etapas del flujo de trabajo, desde los sistemas de captación hasta las metodologías de postproducción y las configuraciones de altavoces. Esta tesis trata varios ...
3D in vitro models for neural progenitor cell differentiation and network formation
[eng] Conventional 2D in vitro and animal models have been found inadequate to fully uncover the intricate mechanisms happening in the brain and its diseases. Engineering-based models emerge as promising alternatives to ...
3D reconstruction for plastic surgery simulation based on statistical shape models
This thesis has been accomplished in Crisalix in collaboration with the Universitat Pompeu Fabra within the program of Doctorats Industrials. Crisalix has the mission of enhancing the communication between professionals ...
3D reconstruction of the proximal femur and lumbar vertebrae from dual-energy x-ray absorptiometry for osteoporotic risk assessment
In this thesis a method was developed to reconstruct both the 3D shape and the BMD distribution of bone structures from Dual-energy X-ray Absorptiometry (DXA) images. The method incorporates a statistical model built from ...
3D subject-specific shape and density modeling of the lumbar spine from 2D DXA images for osteoporosis assessment
Osteoporosis is the most common bone disease, with a significant morbidity and mortality caused by the increase of bone fragility and susceptibility to fracture. Dual Energy X-ray Absorptiometry (DXA) is the gold standard ...
A collection of resources for the study of educational reverse engineering activities in engineering design education
Educational Reverse Engineering Activities referred to as the acronym -EREA- help engineering design students to: Acquire and develop a set of abilities that raise their awareness of the design process; expand their sources ...
A Comprehensive study of arithmetic circuits and elliptic curves for efficient and scalable zero-knowledge proof systems
In recent years, zero-knowledge proofs have come to play a crucial role in distributed systems where there is no trust between the parties involved. Most popular proof systems are for the NP-complete language of arithmetic ...
A computational approach to rhythm description - Audio features for the computation of rhythm periodicity functions and their use in tempo induction and music content processing
Aquesta dissertació tracta del ritme musical. Més exactamente, tracta de programes informàtics que extreuen automàticament descripcions rítmiques a partir de senyals musicals d'àudio.<br/>Presentem nous algorismes per a ...
A cross-layer mechanism for QoS improvements in VoIP over multi-rate WLAN networks
In IEEE 802.11 WLANs, Link Adaptation mechanisms, which choose the transmission rate of each node, provoke unexpected and random variations on the effective channel capacity. When these changes are towards lower bitrates, ...
A dynamic knowledge-based decision support system to handle solids separation problems in activated sludge systems: development and validation
El sistema de fangs activats és el tractament biològic més àmpliament utilitzat arreu del món per la depuració d'aigües residuals. El seu funcionament depèn de la correcta operació tant del reactor biològic com del decantador ...
A Flexible Multitask Summarizer for Documents from Different Media, Domain and Language
Automatic Summarization is probably crucial with the increase of document generation. Particularly when retrieving, managing and processing information have become decisive tasks. However, one should not expect perfect ...
A Geometrical Domain Decomposition Methods in Computational Fluid Dynamics
El método de descomposición de dominios (DD) que se propone en esta tesis pretende resolver flujos incompresibles alrededor de objetos en movimiento relativo. El algoritmo de DD está basado en un acoplamiento del tipo ...
A Global Approach to Vision-Based Pedestrian Detection for Advanced Driver Assistance Systems
A començaments del segle XXI, els accidents de tràfic han esdevingut un greu problema no només pels països desenvolupats sino també pels emergents. Com en altres àrees científiques on la Intel·ligència Artificial s'ha ...
A Hybrid Environment for Syntax-Semantic Tagging
The thesis describes the application of the relaxation labelling algorithm to NLP disambiguation. Language is modelled through context constraint inspired on Constraint Grammars. The constraints enable the use of a real ...
A Mobile Code-based Multi-Routing Protocol Architecture for Delay and Disruption Tolerant Networking
En aquesta tesi, s’introdueix el codi per millorar les Xarxes DTN. Els protocols DTN Store-and-carry-forward ofereixen noves possibilitats en escenaris on hi ha connectivitat intermitent, amples de banda asimètrics, latències ...
A new approach to Decimation in High Order Boltzmann Machines
La Màquina de Boltzmann (MB) és una xarxa neuronal estocàstica amb l'habilitat tant d'aprendre com d'extrapolar distribucions de probabilitat. Malgrat això, mai ha arribat a ser tant emprada com d'altres models de xarxa ...
A New Approach to the Synthesis of Fuzzy Systems from Input-Output Data
Fuzzy logic has been applied successfully to systems modeling for ages. One of its main advantages is that it provides an understandable knowledge representation. Nevertheless, most investigations have focused their efforts ...
A portable device for time-resolved fluorescence based on an array of CMOS SPADs with integrated microfluidics
Traditionally, molecular analysis is performed in laboratories equipped with desktop instruments operated by specialized technicians. This paradigm has been changing in recent decades, as biosensor technology has become ...
A self-organizing management platform for wireless sensor networks
Through advances in sensor, networking, semiconductor and energy storage technologies, Wireless Sensor Networks (WSNs) are increasingly being deployed in many important applications to enable users to access information ...
A statistical dynamic cardiac atlas for the virtual physiological human: construction and application
This thesis is centered on the construction of a cardiac atlas to serve as a common reference frame in the Virtual Physiological Human (VPH). The construction covers the entire construction pipeline, starting from a set ...
