Browsing by Subject "Plasma (Gasos ionitzats)"
Now showing items 1-20 of 45
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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 ... -
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
Open AccessChallenging 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 ... -
Application of fluorescence-based probes for the determination of superoxide in water treated with air non-thermal plasma
(2020-09-25)
Article
Open AccessSuperoxide is one of the reactive oxygen species (ROS) in non-thermal plasmas generated by electrical discharges in air at room temperature and atmospheric pressure. One important application of such plasmas is the activation ... -
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 ... -
Can we remove tattoos with non-thermal atmospheric plasma?
(Wiley (John Wiley & Sons), 2022-01-01)
Article
Open AccessCurrent methods for tattoo removal are long, costly and have drawbacks such as scarring among others. Looking for alternatives, here we assess the feasibility of non-thermal plasma (NTP) as a standalone method for the ... -
Comparing spontaneous and pellet-triggered ELMs via non-linear extended MHD simulations
(2021-07-01)
Article
Open AccessInjecting frozen deuterium pellets into an ELMy H-mode plasma is a well established scheme for triggering edge localized modes (ELMs) before they naturally occur. This paper presents non-linear simulations of spontaneous ... -
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 ... -
Design and Performance Analysis Study of a Magnetoplasmadynamic Thruster
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Restricted access - author's decisionThis study aims to develop a preliminary analysis of a magnetoplasmadynamic (MPD)thruster, a device which represents the next generation of space propulsion technologyfor new interstellar missions, for instance cargo and ... -
Detección de puntos calientes y líneas de calor en imágenes térmicas de un reactor de fusión nuclear
(Universitat Politècnica de Catalunya, 2020-01)
Bachelor thesis
Open AccessIn these moments of struggle against climate change that this generation faces, research in alternative energy and not dependent on fossil fuels is very important. One of the options under investigation is the energy ... -
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 ... -
Estudi del tractament superficial sobre materials polimèrics per a la millora de la capacitat d'adhesió
(Universitat Politècnica de Catalunya, 2018-06)
Bachelor thesis
Restricted access - author's decisionEn general, els materials polimèrics, per la seva naturalesa no tenen bones propietats adhesives. Existeixen varis tipus de tractaments superficials per modificar aquestes propietats. Aquest treball exposarà quines són ... -
Estudio de las propiedades superficiales y del post-suavizado de tejidos de lana y poliamida 6 tratados con plasma
(Universitat Politècnica de Catalunya, 2005-12-19)
Doctoral thesis
Open AccessLa lana es una fibra natural que aunque posee propiedades de confort apreciadas por el consumidor, presenta el inconveniente de encoger durante el lavado en medio acuoso. En una época en que la tendencia en el cuidado de ... -
Estudio del efecto del tratamiento con plasma de fibras de lino para su aplicación en materiales compuestos
(Universitat Politècnica de Catalunya, 2016-01-21)
Master thesis
Restricted access - author's decisionLa búsqueda y aplicación de fibras naturales en materiales compuestos es uno de los campos de investigación en crecimiento en los últimos tiempos debido a sus buenas propiedades específicas, su bajo coste y sus ventajas ... -
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 ... -
How the feed gas composition influences the chemistry induced by non-thermal plasma in water solution
(Universitat Politècnica de Catalunya, 2021-06-16)
Bachelor thesis
Open AccessNon-thermal plasmas are ionized gases at room temperature composed of free electrons, ions, radicals, excited atoms and molecules, neutral molecules and electromagnetic radiation. They are highly reactive systems that are ... -
Important parameters in plasma jets for the production of RONS in liquids for plasma medicine: A brief review
(2019-06)
Article
Open Access
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 ...
