Universitat Politècnica de Catalunya
Mostrando ítems 5404-5423 de 5496
Aquest estudi es centra en la síntesi de zeolites a partir de cendres volants de carbó i les aplicacions ambientals dels materials zeolítics resultants. La síntesi de zeolites es va desenvolupar mitjançant dos processos ...
Materials derired from chicken feathers could be used advantageously in composite building material apptications. Such applications could potentially consume the five billion pounds of feathers produced annually as a ...
Reuse of brines in the chlor-alkali industry can be benefitial both in terms of new material source for the industry and environmental impact reduction of the brines disposal. In this thesis, reuse of Seawater Reverse ...
Among the platform chemicals that can be produced from lignocellulosic biomass, furfural (FUR) constitutes a promising intermediate that can be processed into a variety of advanced end products. In this thesis, the ...
Phosphorus in wastewater is mainly present as inorganic phosphate forms and is commonly removed through chemical co-precipitation using Al(III) and Fe(III) salts. However, precipitation is expensive and generates a waste ...
Este estudio parte de la hipótesis que los servicios del ecosistema son cada vez más escasos debido a la seria degradación de su capacidad para proporcionar servicios eficientemente en la costa Catalana, España. El estudio ...
In 1925, Lilienfeld patented the basic principle of field effect transistor (FET). Thirty-four years later, Kahng and Atalla invented the MOSFET. Since that time, it has become the most widely used type of transistor in ...
Planktonic cnidarians are those species or their stages in the phylum Cnidaria that spent their life in the water column and therefore, are tightly linked to oceanographic dynamics and water mass structures, such as fronts ...
During the last decades, human beings have experienced a significant enhancement in the quality of life thanks in large part to the fast evolution of Integrated Circuits (IC). This unprecedented technological race, along ...
This research aims to enumerate, classify and validate the variables defining a roundabout in terms of geometric, dynamic, road-safety and accident prevention. In the first instance an initial list of variables has been ...
La tesis resalta los valores de El Vedado de La Habana: particular retícula del siglo XIX para una singular ciudad jardín extensa, gradualmente transformada y progresivamente central. Las variaciones que enriquecen su ...
Term unification is a basic operation in several areas of computer science, specially in those related to logic. Generally speaking, it consists on solving equations over expressions called terms. Depending on the kind of ...
This thesis explores a very well understood area of physics: computational structural dynamics. The aim is to stretch its boundaries by merging it with another very well established discipline such as structural design and ...
This thesis is about the stabilization of the numerical solution of the Euler and Navier- Stokes equations of compressible flow. When simulating numerically the flow equations, if no stabilization is added, the solution ...
In this thesis the finite and spectral element methods (FEM and SEM, respectively) applied to problems in atmospheric simulations are explored through the common thread of Variational Multiscale Stabilization (VMS). This ...
Vegetable Fiber Reinforced Cement Composite Materials (VFRCC) have emerged as a potential construction material, providing adequate load-bearing capacity and ductility for non-structural applications. VFRCC have good ...
The box-girder is currently the solution for large prestressed concrete bridges, being most used today in steel and mixed structures. Their widespread use is due to the strength characteristics and versatility, using various ...
Tunable laser sources in different spectral regions are of interest for a variety of applications including spectroscopy, trace gas sensing, medical diagnostics, LIDAR and material processing. Existing lasers have limited ...
Quantum information is a fascinating field that studies situations in which information is encoded as quantum states. This encoding is affected by quantum physical effects (such as superposition or entanglement) and its ...
This thesis presents the study and analysis of the Vessel Traffic Services (VTS), from its origins to the present, with further evaluation of future trends. Examining the current trend in terms of technologies that are ...
