Universitat Politècnica de Catalunya
Now showing items 4029-4048 of 5562
The present thesis aims at studying the use of phase change materials (PCM) in thermal energy storage (TES) applications and to develop and implement numerical tools for their evaluation. Numerical analysis is nowadays an ...
The growing significance, technical development and employment of electromagnetic (EM) methods in exploration geophysics have led to the increasing need for reliable and fast techniques of interpretation of 3-D EM data ...
he main objective of the present thesis is to study and optimize the sealing efficiency of air curtains. Therefore, the phenomenology of the breakthrough and the parameters which affect it has been studied. However, ...
In this work we try to analyse the dynamics of the Navier-Stokes equations in a problem without domain complexities as is the case of the plane Poiseuille flow. The Poiseuille problem is described as the flow of a viscous ...
The work carried out in the framework of the present thesis aims at shedding light into the complex phenomena involved in turbulent water-filled cavities, questioning the validity of the well-established Oberbeck-Boussinesq ...
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 ...
The notion of metamaterials as artificially engineered structures designed to obtain specific material properties, typically unachievable in naturally occurring materials, has captured the attention of the scientific and ...
The interest for archaeological ruins arises periodically ín the course of history and it expresses ít self through a continuous altemating of attitude towards the "ancient": approaching and moving away, memory and ...
Aquesta tesi proposa una millora del clàssic mètode dels elements finits (finite element method, FEM) per a un tractament eficient de dominis amb contorns corbs: el denominat NURBS-enhanced finite element method (NEFEM). ...
In the last years has been performed a huge number of research related to nutrients (mainly N and P) recovery from waste water in order to promote their reuse and also to avoid eutrophication. Recovering nutrient from waste ...
This thesis aims at observing the current situation of Oaxaca city, a medium-size urban area in the southwest of Mexico. After the industrial era, the globalization of economic and cultural issues in the information era ...
In-hand dexterous manipulation of an object is the ability to change the configuration (position and/or orientation) of an object held in the hand. This is an ability that has allowed humans to use tools and interact with ...
La hipótesis de este trabajo es que la obra americana del arquitecto Josep Lluis Sert (1902-1983) aparentemente homogénea, tiene tres etapas distintas, caracterizadas por la evolución de los intereses formales de su ...
The study of Xosé Bar Bóo work (1922-1994), has started from two postulates that have become established by different authors: on the one hand, it is considered a paradigm of professional ethics and, on the other hand, the ...
The emergency of complex phenomena in our time has forced creators to reconnect knowledge in design, since at the moment, most of them have fragmentary and hyper specialized inertia. Due to this, nowadays, in architecture ...
“Observant els mapes i plànols” es un trabajo de investigación sobre los principales documentos gráficos (publicados) de la cartografía mundial y sobre todo, de Catalunya y Barcelona, en el que se descubren y discuten ...
Core-collapse supernovae (CC-SNe) explosions represent the final demise of massive stars. Among the various types, there is a group of relatively infrequent CC-SNe termed type IIb, which appear to be hybrids between normal ...
(English) Surfaces with special functionalities owed to their surface topographies or textures are present all around us in nature. Millions of living organisms around us profit from those special functionalities thanks ...
(English) Although mineral chelates have been produced for more than 70 years, neither production methods nor optimum conditions are well specified. The solid evidence that the complexes are true chelates is still missing. ...
La conservació i protecció del medi ambient estan adquirint cada cop més importància. Un dels factors que influeixen més en la seva degradació és la contaminació. Aquesta tesi es centra en la contaminació del subsòl. com ...
