Searched for: subject:"Plasma"
(1 - 20 of 96)

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Tierolf, Melissa (author)
BACKGROUND.Implant-associated infection (IAI) is a rising complication in bone-related medical treatments using metal implants. Preventive measures, such as implant surfaces with integrated antibacterial properties, are hence required. The emergence of antibiotic-resistant pathogens has led to a growing interest in inorganic nanoparticles as...
master thesis 2019
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van Pelt, Timo (author)
This project proposes a series of experiments that involve plasma synthetic jet actuators. The first experiment will perform a jet characterisation experiment that will research the effect of orifice geometry on the overall performance of the actuator. The second experiment will built upon the first experiment and will use a plasma synthetic jet...
master thesis 2019
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Kiani Khouzani, M. (author), Bahrami, A. (author), Yazdan Mehr, M. (author)
This paper aims at studying microstructure and mechanical properties of spark plasma sintered (SPSed) Stellite®-6 cobalt-based superalloy. SPS is a sintering technique, based on a relatively fast resistance heating using a pulsed current. Fast sintering process, associated with minimum grain growth, results in excellent mechanical properties....
journal article 2019
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Zong, H. (author), Chiatto, Matteo (author), Kotsonis, M. (author), de Luca, Luigi (author)
The plasma synthetic jet actuator (PSJA), also named as sparkjet actuator, is a special type of zero-net mass flux actuator, driven thermodynamically by pulsed arc/spark discharge. Compared to widely investigated mechanical synthetic jet actuators driven by vibrating diaphragms or oscillating pistons, PSJAs exhibit the unique capability of...
review 2018
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Zong, H. (author)
In the last few decades, active flow control (AFC) technology has been developed to minimize the aerodynamic drag of transportation vehicles and maximize the propulsion efficiency of thermodynamic engines. The key of this technology is the actuators. Among all the actuators that have been proposed (i.e. fluidic, moving object, or plasma-based),...
doctoral thesis 2018
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Rosas Saad, Jorge A (author)
Because of its extraordinary material properties, like its high melting point and thermal stress resistance, low erosion and swelling rate, and high radiation damage resistance, highly deformed pure tungsten has been chosen as the plasma facing surface material for the ITER reactor divertor. The study of tungsten’s recrystallization behavior and...
master thesis 2018
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Gelderman, Francisca (author)
In the current day and age, osteogenic bone implants are important to reduce healing time and infections after bone implantation. To help induce bone formation, the implant surface can be biofunctionalized with different agents. A promising surface modification technique used to treat titanium implants is Plasma Electrolytic Oxidation (PEO). In...
master thesis 2018
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van 't Klooster, Thomas (author)
There is a trend in the miniaturisation of satellites. They not only become smaller, but lighter and more powerful as well. A large growth in the nano-satellite sector is present in the form of CubeSats. These milk carton size satellites use commercial of the shelf components in order to keep the costs low and to allow for technology...
master thesis 2018
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Boatemaa, L. (author)
Alumina (Al2O3) is an attractive ceramic for engineering applications operating at elevated or high temperatures because of its good thermal and chemical resistance. It also maintains high strength and hardness at high temperatures. These desirable properties are due to the strong covalent and ionic bonds existing between its atoms.
However,...
doctoral thesis 2018
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Serpieri, J. (author), Kotsonis, M. (author)
In this study, experiments are performed towards the identification and measurement of unsteady modes occurring in a transitional swept wing boundary layer. These modes are generated by the interaction between the primary stationary and travelling cross-flow instabilities or by secondary instability mechanisms of the stationary cross-flow...
journal article 2018
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Guo, Peiqing (author)
Carrier-selective passivating contacts (CSPCs) is now a popular contact structure that effectively passivates the crystalline silicon (c-Si) surface as well as selectively extracts the specific type of charge carrier (electrons or holes). In this thesis work, we developed the CSPCs based on oxygen-alloyed polycrystalline silicon (poly-SiOx)...
master thesis 2018
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Desouza, Gerson (author)
One of the main goals of laminar flow control is to reduce skin-friction drag by delaying the onset of laminar to turbulent transition. Over unswept wings, the leading cause of this is the growth of flow instabilities called Tollmien-Schlichting(TS) waves. This thesis aims to test the feasibility and performance of a designed Linear Quadratic...
master thesis 2018
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Doekes, Philippine (author)
Plasma membrane dynamics have become increasingly of interest due to recent discoveries on anomalous lipid diffusion in live cells. A specific characteristic has been found in the exponential relation between lateral lipid diffusion and temperature. The finding was reported to be surprising as a linear dependence was theoretically predicted. In...
master thesis 2018
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Ho, Hung (author)
With the rise of multidrug resistant pathogens and Hospital Acquired infections other ways of disinfection should be considered. The growing infections rate causes economic burden due to hospitalization of infected patients where as hospitalization can lead to more infections due to cross-contamination. Current techniques in Infection Prevention...
master thesis 2017
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Fernandez de la Fuente, J. (author)
The global energy challenges along with global warming are regarded as the most important issues faced by humankind in the 21st century. A fossil fuels-based energy economy cannot support the rapidly increasing world energy demand in a sustainable manner. Hence, the development and implementation of alternative solutions to the use of fossil...
doctoral thesis 2017
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Zong, H. (author), Kotsonis, M. (author)
The performance of a two–electrode plasma synthetic jet actuator (PSJA) is investigated for a wide range of dimensionless actuation frequencies (f*) using high-speed phase-locked Particle Imaging Velocimetry (PIV) measurements. The jet-induced velocity fields in the axisymmetric plane are measured during both...
journal article 2017
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Maldonado Aylwin, Pablo Esteban (author)
This report describes the work performed on the experimental setup and initial characterization of the Alternative Low Power Hybrid Ion Engine (ALPHIE) plume performed at the Universidad Politécnica de Madrid (UPM) Plasma Laboratory. First, a general background of plasma thrusters is presented, followed by a review of relevant plasma parameters...
master thesis 2017
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Gomez Garcia, Miriam (author)
The use of fibre reinforced composite polymeric materials for primary helicopter structures has been increasing over the last decades due to their attractive properties; high performance and lightweight inducing more fuel savings than their metallic counterparts. With respect to the joining methods; structural adhesive bonding is preferred when...
master thesis 2017
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Michelis, Theodorus (author)
The research presented in this thesis focuses on boundary layer separation and, more specifically, on the related physical mechanisms, such as laminar to turbulent transition, with a vision towards effective separation control. The work is divided in three parts, each corresponding to a different separation scenario. The supporting data is...
doctoral thesis 2017
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Varanasi, Anusha (author)
Transparent conductive oxides (TCOs) are wide bandgap semiconductors characterized by high conductivity and high transparency in the visible and near infrared spectrum of light. TCOs find applications in displays, thin film transistors, solar cells, etc., due to these distinctive properties. Hydrogen-doped indium oxide (IO:H), a TCO first...
master thesis 2017
Searched for: subject:"Plasma"
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