Now showing items 1-18 of 18

    • Biofuncionalización de superficies de CoCr con nano-patterning 

      Peiró Pano, Isabel (Universitat Politècnica de Catalunya, 2015-09)
      Bachelor thesis
      Restricted access - author's decision
      En 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 

      Fernández Yagüe, Marc-Antoni (Universitat Politècnica de Catalunya, 2014-06)
      Master thesis
      Restricted access - author's decision
      Las 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 

      Villies, Robin (Universitat Politècnica de Catalunya, 2015-04)
      Master thesis
      Open Access
      Los 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 ...
    • Estudi de l’efecte del brunyit en superfícies cilíndriques 

      Manresa Ponsa, Oriol (Universitat Politècnica de Catalunya, 2021-01-26)
      Bachelor thesis
      Restricted access - author's decision
      Durant 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 

      Baró Gadea, Elena (Universitat Politècnica de Catalunya, 2012-12)
      Master thesis (pre-Bologna period)
      Open Access
      En 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 

      Lozano Fernández, Carlos (Universitat Politècnica de Catalunya, 2018-05)
      Bachelor thesis
      Open Access
      Este 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 

      Fadurdo Orellana, Roger (Universitat Politècnica de Catalunya / Luleå Tekniska Universitet, 2011)
      Master thesis (pre-Bologna period)
      Open Access
      Initially, 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 ...
    • Finite element analysis of particle rebound characteristics 

      Tusell i Prats, Sergi (Universitat Politècnica de Catalunya / Technische Universität Kaiserslautern, 2014)
      Master thesis (pre-Bologna period)
      Open Access
      In 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 

      Arciniegas Angarita, Milena Patricia; Peña Andrés, Francisco Javier; Gil Mur, Francisco Javier; Manero Planella, José María (2013)
      Article
      Restricted access - publisher's policy
      Ni-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 ...
    • Ingeniería y certificación de una instalación de tratamiento de superficies por vibración 

      Navarro Teixidó, Ferran (Universitat Politècnica de Catalunya, 2016-09)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El 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 

      Salvador Soy, Aniol; Öhström, Christian (Universitat Politècnica de Catalunya, 2012)
      Master thesis (pre-Bologna period)
      Open Access
      In 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 

      Núñez Aguilar, Carlota (Universitat Politècnica de Catalunya / Wuhan University, 2013)
      Bachelor thesis
      Open Access
      Accumulative 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 

      Fang, Shiqi; Klein, Sven; Bähre, Dirk; Llanes Pitarch, Luis Miguel (Elsevier, 2020-11-01)
      Article
      Restricted access - publisher's policy
      Laser 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 

      Bayerri Ruiz, Albert (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 

      Hosseininejad, Seyed Ehsan; Rouhi, Kasra; Neshat, Mohammad; Faraji-Dana, Reza; Cabellos Aparicio, Alberto; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José (Nature, 2019-02-27)
      Article
      Open Access
      Recent 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). 

      Saiz Pascual, Guillem (Universitat Politècnica de Catalunya, 2016-06)
      Bachelor thesis
      Restricted access - author's decision
      This 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 ...
    • Study of the contact resistance of high voltage electric connectors 

      Pla Pérez, Irene (Universitat Politècnica de Catalunya, 2016-01)
      Bachelor thesis
      Restricted access - author's decision
      Substation connectors are used in electrical substations, to make connections between conductors or bus bars and between conductors and the power transmission line. It is important to ensure a good contact between connectors ...
    • Tailoring the self-assembly of a tripeptide for the formation of antimicrobial surfaces 

      Nir, Sivan; Zanuy Gomara, David; Zada, Tal; Agazani, Omer; Alemán Llansó, Carlos; Shalev, Deborah E.; Reches, Meital (2019-05-14)
      Article
      Open Access
      The accumulation of bacteria on surfaces is currently one of the greatest concerns f or the supply of proper health, water and energy. Here, we describe the mechanism by which a single peptide forms two ...