Ara mostrant els elements 30570-30589 de 41815

    Nuevos tratamientos de lana con enzimas 

    Vílchez Maldonado, Susana (Data de defensa: 2005-12-12)

    Uno de los objetivos destacables de los tratamientos textiles modernos es obtener el efecto requerido modificando preferentemente la superficie de las fibras a fin de mantener la calidad del material, utilizando procesos ...

    Nuevos tratamientos en esteatohepatitis no alcohólica experimental. Combinación de estatinas y antagonistas del receptor A de endotelina para la recuperación del fenotipo alterado de las células del sinusoide hepático 

    Bravo Garmendia, Miren (Data de defensa: 2020-09-25)

    L’esteatohepatitis no alcohòlica (NASH) és un trastorn hepàtic crònic comú als països desenvolupats, conseqüència de l’acumulació excessiva de lípids en els hepatòcits i associat a les complicacions clíniques provocades ...

    Numerales y morfología léxica. Del latín al español actual 

    Pujol Payet, Isabel (Data de defensa: 2001-02-26)

    Esta tesis se centra en el estudio de la evolución de los derivados de origen numeral desde el latín hasta la actualidad. Nuestro objetivo principal es doble: por un lado, pretendemos descubrir si este conjunto de elementos ...

    Numerical algorithms for three dimensional computational fluid dynamic problems 

    Mora Acosta, Josue (Data de defensa: 2001-12-20)

    The target of this work is to contribute to the enhancement of numerical methods for the simulation of complex thermal systems. Frequently, the factor that limits the accuracy of the simulations is the computing power: ...

    Numerical analysis and experimental studies of vapour compression refrigerating systems: special emphasis on different cycle configurations 

    Sadurní Caballol, Alexandre (Data de defensa: 2012-09-28)

    The aim of this work is to study the thermal behavior and fluid-dynamic systems, vapor compression refrigeration and its components (heat exchangers, expansion devices, compressors, connecting pipes, pumps and pressure ...

    Numerical analysis of concrete-filled tubes with stiffening plates under large deformation axial loading 

    Albareda Valls, Albert (Data de defensa: 2013-01-18)

    Concrete-filled tubes have been increasingly used these recent decades thanks to their improved structural behavior, especially under compression.Concrete filling in these sections improves ¡ts compressive strength thanks ...

    Numerical analysis of particle-laden flows with the finite element method 

    Casas González, Guillermo (Data de defensa: 2018-10-30)

    In this work we study the numerical simulation of particle-laden fluids, with a focus on Newtonian fluids and spherical, rigid particles. We are thus dealing with a multi-phase (more precisely, a multi-component) problem, ...

    Numerical analysis of railway ballast behaviour using the Discrete Element Method. 

    Irazábal González, Joaquín (Data de defensa: 2017-10-06)

    The development of high-speed train lines has increased significantly during the last twenty-five years, leading to more demanding loads in railway infrastructures. Most of these infrastructures were constructed using ...

    Numerical and experimental analyses of single and two-phase microfluidic flows with implications in microreactors 

    Blanch Ojea, Roland (Data de defensa: 2011-12-19)

    Aquesta tesi centra els seus esforços en l'àmbit de la microfluídica, un camp relativament recent dins de la Mecànica de Fluids, amb un futur prometedor i amb un ritme d'investigació intens en les seves diferents ...

    Numerical and experimental investigation of spectral domain vibration based indicators for structural health monitoring 

    Serra López, Roger (Data de defensa: 2018-05-22)

    Structural health monitoring has been defined as the acquisition, validation and analysis of technical data to facilitate life- cycle management decisions. It is the result of a convergent path from many previous existing ...

    Numerical and experimental study of a flat plate collector with honeycomb transparent insulation and overheating protection system 

    Kessentini, Hamdi (Data de defensa: 2014-02-14)

    In this thesis a flat plate collector (FPC) with plastic transparent insulation materials (TIM) and a low-cost overheating protection system destined for heat supply from 80 to 120°C is presented. A ventilation channel ...

    Numerical and experimental study of flow and wall mass transfer rates in capillary driven flows in microfluidic channels 

    Cito, Salvatore (Data de defensa: 2009-12-15)

    Micro-channels are believed to open up the prospect of precise control of fluid flow and chemical reactions. The capillary effect can be used to pump fluids in micro-channels and the flow generated can dissolve chemicals ...

    Numerical and Experimental Study of Glass in the Blow and Blow Forming Process for the Prediction of Thickness Distributions in Glass Perfume Containers 

    Biosca Mecías, Adrià (Data de defensa: 2020-01-10)

    El disseny del motlle preparador és un punt crític en el desenvolupament de nous flascons ja que defineix la distribució d’espessors de vidre en les ampolles fabricades. Tot i això, el disseny d’aquestes cavitats encara ...

    Numerical and experimental study of steady and unsteady mixed convection flow in a cubical open cavity with the bottom wall heated 

    Bassit Megalaa, Gorg Abdelmassih (Data de defensa: 2016-09-12)

    En aquest estudi s'analitzen els experiments i simulacions numèriques del flux de convecció mixta en una cavitat cúbica situada a la part inferior d'un canal quadrat. Els nombres de Reynolds en funció de la velocitat mitjana ...

    Numerical and experimental study of transient laminar natural convection of high prandtl number fluids in a cubical cavity 

    Younis Taha Elamin, Obai (Data de defensa: 2009-11-23)

    NUMERICAL AND EXPERIMENTAL STUDY OF TRANSIENT LAMINAR NATURAL CONVECTION OF HIGH PRANDTL NUMBER FLUIDS IN A CUBICAL CAVITY<br/>Obai Younis Taha Elamin<br/><br/>La convección natural en espacios cerrados, se encuentra ...

    Numerical approach for modeling steel fiber reinforced concrete 

    Pros Parés, Alba (Data de defensa: 2012-02-06)

    One alternative to overcome the main drawbacks of plain concrete in tension (its brittleness and weakness) is Steel Fiber Reinforced Concrete (SFRC), a technique introduced in the 70's, which consists of adding steel fibers ...

    Numerical calculation model for the global analysis of concrete structures with masonry walls 

    Escudero Torres, Cuauhtémoc (Data de defensa: 2015-07-13)

    The numerical simulation in the field of civil engineering, while widely used in structural design, has not benefited from the full potential offered by new technologies for the analysis and design of composite materials ...

    Numerical computation and avoidance of manipulator singularities 

    Bohigas Nadal, Oriol (Data de defensa: 2013-05-10)

    This thesis develops general solutions to two open problems of robot kinematics: the exhaustive computation of the singularity set of a manipulator, and the synthesis of singularity-free paths between given configurations. ...

    Numerical computation of invariant objects with wavelets 

    Romero i Sànchez, David (Data de defensa: 2015-11-05)

    Vegeu dris1de1resum.pdf

    Numerical formulation of physical phenomena in nanoparticles for their application to nanofluids 

    Forner Escrig, Josep (Data de defensa: 2021-06-25)

    This thesis presents a numerical formulation grounded on continuum physics to study different coupled phenomena, such as thermomechanics and high-frequency thermoelectricity, in nanoparticles for their use in nanofluids ...