Browsing by Subject "Plasma (Gasos ionitzats)"
Now showing items 1-20 of 26
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Active species in N2 and N2-O2 afterglows for surface treatments
(2010)
Article
Open AccessProduction of active species is studied in N2 and in N2-O2 afterglows of electrical discharges at low and atmospheric gas pressures. They are produced in microwave discharges in a large range of gas pressures from a few ... -
Advances on the Inductive Plasma Thruster Design for an Atmosphere-Breathing EP System
(International Astronautical Federation, 2018)
Conference report
Restricted access - publisher's policyChallenging space mission scenarios include those in very low Earth orbits, where the atmosphere creates significant drag to the S/C and forces their orbit to an early decay. For drag compensation, propulsion systems are ... -
A new ion cyclotron range of frequency scenario for bulk ion heating in deuterium-tritium plasmas: How to utilize intrinsic impurities in our favour
(American Institute of Physics Publising LLC, 2015-08-24)
Article
Open AccessA fusion reactor requires plasma pre-heating before the rate of deuterium-tritium fusion reactions becomes significant. In ITER, radiofrequency (RF) heating of He ions, additionally puffed into the plasma, is one of the ... -
Avaluació dels Efectes del Tractament de Plasma de Baixa Temperatura sobre Ciments de Fosfat de Calci per a la millora de la Regeneració Òssia.
(Universitat Politècnica de Catalunya, 2013-02)
Master thesis (pre-Bologna period)
Open AccessEls ciments de fosfat de calci són materials molt utilitzats en aplicacions biomèdiques per a l’ompliment de cavitats òssies. Es troben constituı̈ts per una fase sòlida en forma de pols i un lı́quid, que al mesclar-se ... -
Contribució als estudis de seguretat d’ITER mitjançant el codi AINA
(Universitat Politècnica de Catalunya, 2012-06)
Master thesis (pre-Bologna period)
Restricted access - author's decisionEn el present document es realitza un estudi de simulacions de pèrdua del control del plasma en un reactor termonuclear de fusió. En particular, el futur reactor del projecte ITER (International Thermonuclear Experimental ... -
Electrochemical sensors based on electrochemically inert polymers
(Universitat Politècnica de Catalunya, 2016-06-28)
Bachelor thesis
Open AccessThe functionalization of electrochemical sensors by plasma techniques represents a new approach to surface physics for nanotechnology implementation and should give a new access to long standing open problems such as the ... -
Evaluation of N atom transmission of N(2) flowing post-discharges for sterilization processes through modification of wettability of textiles
(2011-06-22)
Article
Restricted access - publisher's policyPlasma sterilization has been extensively studied in recent years, and at present conditioning materials such as sterilization pouches or process indicators devoted to such processes should be optimized to allow transfer ... -
Experimental techniques in determination of electron cyclotron power deposition profiles in thermonuclear plasmas
(Universitat Politècnica de Catalunya / Politecnico di Milano, 2014)
Master thesis (pre-Bologna period)
Open AccessElectron cyclotron waves are widely used in magnetic confinement devices, specially in those involved in nuclear fusion research, to heat the electrons and achieve the ignition temperature. A still unsolved issue is ... -
Fabricació de dispositius fotònics integrats
(Universitat Politècnica de Catalunya, 2017-06)
Bachelor thesis
Open AccessThis project has focused on the fabrication and characterization of hydrogenated amorphous silicon (a-Si:H) thin films to fabricate photonic devices on them, which can be applied to make revolutionary applications in the ... -
Heating bulk ions in DEMO with ICRF waves
(Barcelona Supercomputing Center, 2015-05-05)
Conference report
Open AccessIon cyclotron resonance frequency heating (ICRF) is one of the auxiliary heating schemes presently envisaged for ITER and DEMO. In this paper we analyse the potential of ICRF waves to heat the fuel ions in DEMO. Our ... -
Important parameters in plasma jets for the production of RONS in liquids for plasma medicine: A brief review
(2019-06)
Article
Restricted access - publisher's policy
Covenantee: Univerzita Komenského v Bratislave / Univerzita Komenského v BratislaveReactive oxygen and nitrogen species (RONS) are among the key factors in plasma medicine. They are generated by atmospheric plasmas in biological fluids, living tissues and in a variety of liquids. This ability of plasmas ... -
Investigation into potential for cold plasma to treat contaminated seawater
(Universitat Politècnica de Catalunya, 2013-05)
Master thesis (pre-Bologna period)
Restricted access - author's decisionThis paper will be focus in contaminated seawater treatment and in a new technique, known as Plasma Assisted Processing, which was used to treat such seawater. This process is based on using cold plasma technology whereby ... -
ITER Loss of Plasma Control Transients Analysis
(Universitat Politècnica de Catalunya, 2014-05)
Master thesis (pre-Bologna period)
Open AccessEn el presente informe se realiza un estudio de transitorios de pérdida de control del plasma en ITER. Para la realización del estudio se ha utilizado AINA 3.0, un código de seguridad desarrollado por Fusion Energy ... -
Nonlinear electromagnetic stabilization of microturbulence by fast ions
(Universitat Politècnica de Catalunya, 2017-09-04)
Master thesis
Open Accesse. 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 ... -
Non-linear MHD simulations of the plasma instabilities by pellet injection in LHD plasma
(2018)
Conference report
Open AccessThe pellet injection is an experimentally proven method of plasma refueling in tokamaks [1,2] and stellarators plasmas [3]. The pellet injection into the plasma is also used for plasma control, i.e. ELM (Edge Localized ... -
Optimization of plasma-treated LDPE-based glucose sensors
(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 ... -
Particle in cell simulation of electrostatic waves in Saturn's magnetosphere
(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
(2013)
Article
Restricted access - publisher's policyFiber 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
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Open AccessWe 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
(Universitat Politècnica de Catalunya, 2016-09)
Master thesis (pre-Bologna period)
Open AccessThis 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 ...
