Now showing items 21-34 of 34

    • Nonlinear electromagnetic stabilization of microturbulence by fast ions 

      De Oliveira Lopes, Felipe Nathan (Universitat Politècnica de Catalunya, 2017-09-04)
      Master thesis
      Open Access
      e. Abstract In plasma physics, the specific aspect of the interaction between highly energetic ions and microturbulence is still an open problem and has a big impact on the plasma overall confinement quality. In the ...
    • Optimization of plasma-treated LDPE-based glucose sensors 

      Cabrera Valls, Jordi (Universitat Politècnica de Catalunya, 2019-01)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Center for Research in NanoEngineering (CRNE)
      Diabetes is an ongoing huge global health issue, which is predicted to affect 552 million people worldwide in 2030. In fact, glucose monitoring biosensors account for 85% of the entire biosensor market. The demand for ...
    • Overview of the JET preparation for deuterium-tritium operation with the ITER like-wall 

      Joffrin, Emmanuel; Abduallev, Sadrilla; Abhangi, Mitul; Futatani, Shimpei; Gallart, Daniel; Gutiérrez, Albert; Mantsinen, Mervi Johanna; Saez Pous, Xavier; Rakha, Allah (2019-11-01)
      Article
      Open Access
      For the past several years, the JET scientific programme (Pamela et al 2007 Fusion Eng. Des.82 590) has been engaged in a multi-campaign effort, including experiments in D, H and T, leading up to 2020 and the first experiments ...
    • Particle in cell simulation of electrostatic waves in Saturn's magnetosphere 

      Gasparin Pedraza, Laia (Universitat Politècnica de Catalunya / Kungl. Tekniska högskolan, 2012-09-05)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Kungliga Tekniska högskolan
      [ANGLÈS] The characteristics of electrostatic waves are investigated using PIC simulations of a four component plasma: cool and hot electrons, cool ions and an electron beam. The velocities are defined by Maxwellian ...
    • Plasma surface functionalization and dyeing kinetics of Pan-Pmma copolymers 

      Labay, Cedric; Canal Barnils, Cristina; Rodríguez Sorigué, María Cristina; Caballero Manresa, Gabriel; Canal Arias, José María (2013)
      Article
      Restricted access - publisher's policy
      Fiber surface modification with air corona plasma has been studied through dyeing kinetics under isothermal conditions at 30 °C on an acrylic-fiber fabric with a cationic dye (CI Basic Blue 3) analyzing the absorption, ...
    • Plasmonic fractal antennas 

      López Menchón, Héctor (Universitat Politècnica de Catalunya, 2016-06)
      Bachelor thesis
      Open Access
      We study the effects of using fractal shapes on the design of nanoantennas at optical geometries.
    • Scrape Off Layer turbulence and flow velocity measurements with the Li-beam diagnostic 

      Rodriguez Serra, Jorge (Universitat Politècnica de Catalunya, 2016-09)
      Master thesis (pre-Bologna period)
      Open Access
      This work studies the behavior of the plasma in the outer part of the vessel, where the magnetic field lines are no longer closed, this part in called scrape off layer. The machine studied is the experimental fusion ...
    • Shear Alfvén wave continuum spectrum with bifurcated helical core equilibria 

      Rakha, Allah; Lauber, Philipp; Mantsinen, Mervi Johanna; Spong, Donald (2019-09-09)
      Article
      Open Access
      The radial structure of the continuum spectrum of shear Alfvén and Alfvén-acoustic waves in the beta-induced Alfvén eigenmode (BAE) frequency range is modeled for tokamak plasmas in the presence of 3D effects obtained from ...
    • Simulación de la formación de plasma en el mecanizado por electroerosión 

      Villagomez Galindo, Miguel; González Rojas, Hernan Alberto (Academia Journals, 2017)
      Conference report
      Open Access
      El proceso de mecanizado por electroerosión es una técnica de manufactura no convencional caracterizada por descargas eléctricas controladas que liberan tal cantidad de energía que es capaz de transformar en plasma el ...
    • Simulations of Alfvénic modes in TJ-II Stellarator 

      Rakha, Allah; Mantsinen, M. J.; López-Fraguas, A.; Castejón, F.; Pablos, J.L. de; Melnikov, A.V.; Sharapov, S. E.; Spong, D. A. (Barcelona Supercomputing Center, 2017-05-04)
      Conference report
      Open Access
      Alfvénic modes are one of the subclass of instabilities prevalent in burning plasmas due to interaction of energetic particles with background plasma. In this paper we investigate the properties of these modes with 3D ...
    • Simulations of high-enthalpy gases in an Electric Arc Heater – Study of Equilibrium vs. Non- Equilibrium assumptions and Uncertainty Quantifications of an Arc Jet 

      Jiménez Miró, José Ángel (Universitat Politècnica de Catalunya / Insitut Supérieur de l'Aéronautique et de l'Espace, 2011)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Space exploration has experienced exceptional advances the last years since the NASA’s Apollo missions landed man on the moon. In spite of all the discoveries and advances in computational power, the heat flux on the ...
    • Topographical and wettability effects of post-discharge plasma treatments on macroporous polystyrene-divinylbenzene solid foams 

      Canal Barnils, Cristina; Gaboriau, Freddy; Vílchez, Alejandro; Erra Serrabasa, Pilar; García-Celma, María José; Esquena, Jordi (2009)
      Article
      Restricted access - publisher's policy
      The aim of this study was to evaluate the morphological characteristics and wetting properties of polystyrene-divinylbenzene (PS-DVB) solid foams and their modification through post-discharge plasmas. The low-density solid ...
    • Transmission of N atoms through PP membranes for nitrogen flowing post-discharge sterilisation processes 

      Ricard, André; Canal Barnils, Cristina (2010)
      Article
      Restricted access - publisher's policy
      This work reports on the results of investigations conducted with three layered polypropylene (PP) membranes which were exposed to a N2 flowing microwave (100 W) post discharge, at several flow rates (0.03–1 Slm) and at ...
    • White paper on the future of plasma science and technology in plastics and textiles 

      Cvelbar, Uros; Walsh, James L.; Cernák, Mirko; Labay, Cédric Pierre; Canal Arias, José María; Canal Barnils, Cristina (2019-01-01)
      Article
      Open Access
      Covenantee:   Inštitut "Jožef Stefan"
      This white paper considers the future of plasma science and technology related to the manufacturing and modifications of plastics and textiles, summarizing existing efforts and the current state‐of‐art for major topics ...