Browsing by Subject "Plasma (Gasos ionitzats)"
Now showing items 1-20 of 51
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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 ... -
Current state of cold atmospheric plasma and cancer-immunity cycle: therapeutic relevance and overcoming clinical limitations using hydrogels
(John Wiley & sons, 2023-01-20)
Article
Open Access
Covenantee: Universiteit AntwerpenCold atmospheric plasma (CAP) is a partially ionized gas that gains attention as a well-tolerated cancer treatment that can enhance anti-tumor immune responses, which are important for durable therapeutic effects. This ... -
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 ... -
Electromagnetic propagation in plasmas, understanding the radio blackout during spacecraft reentry
(Universitat Politècnica de Catalunya, 2023-06)
Bachelor thesis
Open AccessThis thesis is devoted to the study of the radio communication blackout effect, produced in spacecrafts during its atmospheric re-entry. This phenomenon is produced by plasma, which is caused by atmospheric friction. 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 measurements of radio signal attenuation and Faraday rotation due to electron number density in a plasma flow
(European Conference for AeroSpace Sciences (EUCASS), 2023)
Conference report
Open AccessSpacecraft entering a planetary atmosphere are surrounded by a plasma layer containing high levels of ionization. The high electron number densities cause attenuation and rotation of the polarization of the emitted signal, ... -
Experimental measurements of radio signal attenuation and Faraday rotation in an inductively coupled plasma facility
(Karman Institute for Fluid Dynamics, 2023)
Conference report
Open AccessSpacecraft entering a planetary atmosphere are surrounded by a plasma layer containing high levels of ionization due to the high temperatures on the shock layer. The high electron number densities cause attenuation and ... -
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 ...
