Browsing by Subject "Superfícies (Tecnologia)"
Now showing items 1-20 of 21
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Biofuncionalización de superficies de CoCr con nano-patterning
(Universitat Politècnica de Catalunya, 2015-09)
Bachelor thesis
Restricted access - author's decisionEn este trabajo se estudia la modificación y caracterización superficial de una aleación de CoCr con aplicación para stens cardiovasculares. Un stent es un dispositivo que se introduce en las arterias coronarias para ... -
Control de la restenosis mediante nanotopografías en superficies de CoCr para aplicaciones cardiovasculares
(Universitat Politècnica de Catalunya, 2014-06)
Master thesis
Restricted access - author's decisionLas enfermedades cardiovasculares (ECV) son la principal causa de muerte en el mundo: más personas mueren anualmente por ECV que por cualquier otra causa. Se estima que el 30 % de fallecidos al año es consecuencia de ECV, ... -
Control of wettability by micro mechanical machining
(Universitat Politècnica de Catalunya, 2015-04)
Master thesis
Open AccessLos biomateriales se hacen cada vez más importante en la medicina moderna y se utilizan para curar a millones de personas, gracias al avance de la investigación. Estos materiales están diseñ ... -
Desarrollo de un software para el cálculo y el análisis de parámetros de rugosidad.
(Universitat Politècnica de Catalunya, 2018-09-10)
Bachelor thesis
Open AccessActualmente, los controles de calidad son cada vez más rigurosos e importantes , no solamente de las características dimensionales, sino que también se realizan inspecciones de la calidad del acabado dimensi onal. En este ... -
Estudi de l’efecte del brunyit en superfícies cilíndriques
(Universitat Politècnica de Catalunya, 2021-01-26)
Bachelor thesis
Restricted access - author's decisionDurant l’estudi s’ha aconseguit brunyir amb bola provetes cilíndriques amb l’assistència de vibracions així com sense. Destacant el fet que les provetes són fetes en revolució ha permès que l’eina fos muntada com qualsevol ... -
Estudio de la rugosidad superficial mediante fresado
(Universitat Politècnica de Catalunya, 2012-12)
Master thesis (pre-Bologna period)
Open AccessEn este proyecto se estudia el comportamiento de la rugosidad superficial en el fresado debida a los defectos en los filos de la herramienta. En la primera parte se introduce la operación de fresado, y más tarde, se ... -
Estudio de texturas superficiales en una probeta convexa de aluminio A92017
(Universitat Politècnica de Catalunya, 2018-05)
Bachelor thesis
Open AccessEste proyecto presenta un estudio comparativo entre los valores de rugosidad superficial medidos con un perfilómetro de contacto y un perfilómetro óptico. Las superficies a medir han sido creadas mediante un proceso de ... -
Experimental methods to measure mechanical properties of cross country skis: Load-displacement and contact surface
(Universitat Politècnica de Catalunya / Luleå Tekniska Universitet, 2011)
Master thesis (pre-Bologna period)
Open AccessInitially, cross country skis were used to move from place to place through the snow in winter. Now mainly it is performed in recreational and competition environments. Its intuitive basic technique, the direct contact ... -
Experimental validation of ball burnishing numerical simulation on ball-end milled martensitic stainless-steel considering friction and the initial surface topography
(Elsevier, 2023-01)
Article
Open AccessNumerous simplified numerical models have been established to optimize the ball burnishing of steel surfaces. Nevertheless, their conceptualization has not considered the tool–part interaction, leading to an unsatisfactory ... -
Finite element analysis of particle rebound characteristics
(Universitat Politècnica de Catalunya / Technische Universität Kaiserslautern, 2014)
Master thesis (pre-Bologna period)
Open AccessIn the present thesis, a study about the particle rebound characteristics is presented. The rebound of a spherical particle was analyzed in details and specifically the coefficient of restitution of a sphere colliding to ... -
In-vitro response of pre-osteoblastic MG63 cells on Ni-free Ti shape memory substrates
(2013)
Article
Restricted access - publisher's policyNi-free Ti alloys are a potential strategy to overcome the risk of Ni-adverse reactions and rigidity mismatch for implant materials. Here, we report the biological behavior induced for two promising candidate alloys—Ti19.1Nb8.8Zr ... -
Influence of peak height prior to milling the resulting surface roughness of the ball burnishing process on convex and concave pieces of aluminum
(2012)
Conference lecture
Open AccessMolds, counterfoils of conformation, and many other industrial pieces with important presentations, face constant the engineers with the problem of obtaining superficial qualities that minimize the friction, optimize the ... -
Ingeniería y certificación de una instalación de tratamiento de superficies por vibración
(Universitat Politècnica de Catalunya, 2016-09)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEl siguiente proyecto es el reflejo del trabajo realizado en la empresa CONIEX, para la ingeniería y certificación de una instalación de tratamiento de superficies por vibración que fue diseñada, vendida y puesta en ... -
Investigation and Evaluation of Methods for Measuring Surface Texture on Worktops and Kitchen Fronts
(Universitat Politècnica de Catalunya, 2012)
Master thesis (pre-Bologna period)
Open AccessIn this Master Thesis different methods for measuring and evaluating surface textures have been investigated and evaluated. A method for digitizing textures called photometric stereo have also been studied. The purpose has ... -
Microstructure and properties of copper deformed by accumulative roll-bonding
(Universitat Politècnica de Catalunya / Wuhan University, 2013)
Bachelor thesis
Open AccessAccumulative Roll Bonding (ARB), which is a process of severe plastic deformation (SPD), was applied to commercially pure copper 99, 97 % by performing up to 7 ARB cycles at room temperature (RT) conditions without ... -
Performance of laser surface textured cemented carbide tools during abrasive machining: Coating effects, surface integrity assessment and wear characterization
(Elsevier, 2020-11-01)
Article
Open AccessLaser surface texturing (LST) and coating deposition are implemented on cemented carbide (WC-CoNi) tools to extent their application in abrasive-like machining processes. The topographic features of a conventional cubic ... -
Projecte de Sistema de detecció de defectes abans de pintat
(Universitat Politècnica de Catalunya, 2018-01-18)
Bachelor thesis
Restricted access - confidentiality agreement -
Reprogrammable graphene-based metasurface mirror with adaptive focal point for THz imaging
(Nature, 2019-02-27)
Article
Open AccessRecent emergence of metasurfaces has enabled the development of ultra-thin flat optical components through different wavefront shaping techniques at various wavelengths. However, due to the non-adaptive nature of conventional ... -
Study of surface characterization techniques applied to gold coated contacts in printed circuit boards (PCBs).
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Restricted access - author's decisionThis study aims at providing insight in the world of surface characterization techniques with particular reference to gold coatings. These techniques have become indispensable to understand the causes of failure in many ... -
Surface topography quantification of super hard abrasive tools by laser scanning microscopy
(2016)
Article
Open AccessNon-conventional super hard abrasive tools are made of composite materials containing super hard grains, e.g., diamond or cubic boron nitride (CBN) grains, bound by a metallic constitutive phase. These tools are usually ...
