Universitat Politècnica de Catalunya
Ara mostrant els elements 86-105 de 353
Aquesta tesi doctoral investiga els processos clau que controlen la mobilitat d'alguns dels radionúclids sensibles al redox presents en els residus (U, Pu i Tc) i Ni com a radionúclid crític, en el repositori “Swedish Final ...
Air pollution is known to cause detrimental health effects in cities and specially on the most vulnerable population. Having access to reliable air pollutant concentration data at street-level in urban areas can be crucial ...
Nowadays, concrete pavements are one of the main traditional options of building roads and highways. Moreover, concrete pavements are used for various ground transport infrastructures such as sidewalks, streets and airport. ...
(English) There is increasing interest in developing low-cost sensors for economical structural health monitoring of civil engineering infrastructures. In addition to their price, they have the additional benefit of being ...
The objective of this thesis is the derivation and implementation of a robust Finite Element formulation for the solution of solid-pore fluid coupled problems in multi-fractured porous media. A coupled displacement-pore ...
The study of surface geology by means of Ground Penetrating Radar (GPR) can provide information about abrupt lateral changes in the terrain. The location ofthese changes is very useful in seismic nanozonation studies, since ...
In this doctoral thesis it is proposed to research and assess the performance of the use of distributed optical fiber sensors (DOFS), more specifically the case of the optical backscattered reflectometry (OBR) based system, ...
Wind energy is one ofthe main renewable energies to replace fossil fuels in the generation of electricityworldwide. To enhance and accelerate its implementation at a large scale, it is vital to reduce the costs associated ...
Global change is expected to affect significantly the global hydrological behavior, changing mean annual precipitation patterns, increasing length of drought periods, rising evaporation and atmospheric water vapor and ...
Debris flows are one of the most dangerous mass movements in mountainous regions, but with many outstanding issues on hydrological conditions, mechanisms triggering, dynamic flow and mitigation measures. This work in the ...
(English) The Jarillo, Venezuelan Mirandina parish, has had an intense agricultural development since the end of the 19th century, the peach occupies one of its main crops since the middle of the last century. They are ...
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, ...
Earthquakes are defined as a "violent shaking of the Earth's crust and mantle, caused by forces acting inside the Earth". In most cases, these forces are caused by an energy release process generated from the contact of ...
This thesis presents a proposal to simulate mechanics and dynamics of brittle fracture. A variational formulation is used to describe Lagrangian mechanics, by minimizing the difference between potential and kinetic energy ...
Bulk handling, transport and processing of granular materials and powders are fundamental operations in a wide range of industrial processes and geophysical phenomena. Particulate materials, which can be found in nature, ...
Pervious concrete is a special material with high permeability usually obtained by reducing the amount of fine aggregates in the composition of concrete. The properties of pervious concrete not only depend on its composition ...
Transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP) are operationally defined as organic particles > 0.4 µm that are stainable with the dyes Alcian Blue (specific for acidic polysaccharides) and ...
Knowledge of the abundance, distribution patterns, and population ecology of antarctic benthic biodiversity have increased considerably during the last decades. Antarctic marine benthic biodiversity has been sampled primarily ...
Biological N2 fixation, the reduction of dinitrogen (N2) gas to biologically available nitrogen, is a fundamental process since it represents a source of new nitrogen for marine life in areas where this important element ...
Near-surface wind fields are typically obtained from mesoscale Numerical Weather Prediction (NWP) models. These models describe the physics and dynamics of atmospheric phenomena with characteristic dimensions spanning from ...
