Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 358 for “"Atmospheric pressure"”.
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Computational investigations of atmospheric pressure discharges
… of multispecies multi-dimensional fluid model of atmospheric pressure discharge. The semi-implicit sequential iterative scheme is used to solve the coupled system of plasma fluid model equations with a proper set of boundary conditions. A one- dimensional self consistent drift-diffusion fluid …
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Effects of atmospheric pressure loading on GPS measurements
… surface. We examine the relative contribution of atmospheric pressure loading to the total signal by modeling loads utilizing Farrell's elastic Green's functions. A focus on four permanent GPS sites provided insight on coastal and seasonal differences as well as the relative impact of atmospheric …
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Physics and application of an atmospheric pressure plasma jet
Non-thermal atmospheric pressure plasma jets are a promising new field of research which are beneficial to many associated technologies, such as material treatment and biomedical applications. The interest in this type of plasma lies in their ability to deliver significant densities of reactive …
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One dimensional simulation study for atmospheric-pressure glow discharge
Includes bibliographical references (pages 113-119).
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Electrical, Optical and acoustic diagnostics of atmospheric pressure gas discharges
… presents original diagnostic investigations of atmospheric pressure gaseous discharges, operating in owing helium and helium with low concentrations (0.1 - 1 %) of gas admixtures, together with novel biomedical surface functionalisations. The initial body of this work focuses on comprehensive …
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Synthesis and characterization of atmospheric pressure chemically vapor deposited aluminum
This study investigates the use of atmospheric pressure chemical vapor deposition (APCVD) to produce high quality aluminum coatings for corrosion protection of steel. The coatings were produced through thermal decomposition of tri-isobutyl-aluminum (TIBAL) over the 275 to 300 C temperature range. …
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Modeling of Atmospheric Pressure Plasma Processing of Gases and Surfaces
Atmospheric pressure plasma processing of PP in humid air increases the surface densities of alcohol, peroxy, acid, and carbonyl groups. However, significant amounts of O3 and NxOy are generated in the gas phase. Increasing the relative humidity results in decreased production of O3 and increased …
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Dissociation of carbon dioxide in atmospheric pressure microchannel plasma devices
Plasma discharge of carbon dioxide at atmospheric pressure was successfully demonstrated in microchannel plasma devices at breakdown voltages lower than 1 kVRMS. Optical emissions of molecular and ionic fragments of carbon dioxide were observed in emission spectra of visible wavelength range …
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Atmospheric pressure plasma assisted deposition of zirconia/silica conversion coatings
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Focused atmospheric-pressure microsputterer for additive manufacturing of microelectronics interconnects
The past decade has seen a new manufacturing revolution, in the form of additive manufacturing. While recent additive manufacturing processes can produce structural materials in intricate shapes not previously possible, additive manufacturing of functional materials remains a challenge. In …
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The effect of steam at atmospheric pressure on cement mortars
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1918
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Pulsed nanosecond dielectric barrier discharge in nitrogen at atmospheric pressure
… work, a preliminary study of plasma discharge at atmospheric pressure is conducted as the first step to understand Plasma-Assisted Combustion (PAC) at micro scales.
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Microwave plasma synthesis of nano-sized silicon carbide at atmospheric pressure
… using a microwave-induced plasma, operating at atmospheric pressure. The investigation was done experimentally using a 1 500 W power supply, a microwave generator operating at 2.45 GHz, a stub tuner, a waveguide and a sliding short. Quartz tubes were used, in which the plasma was generated and …
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An investigation to predict the sub-atmospheric pressure on high spillways
… the evaluation of the flow field and the pressure distribution on the crests of spillways. The investigation of the subatmospheric pressure which is the main cause of cavitation was primary objective of the thesis. Consequently, a functional numerical model for design purposes was …
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Deposition of aluminum oxide by evaporative coating at atmospheric pressure (ECAP)
… coating method of Evaporative Coating at Atmospheric Pressure (ECAP). This new idea is an atmospheric-pressure based process. By using the thermal energy of plasma, solid aluminum are evaporated and then produce a PVD-like alumina coating on a work piece. The aluminum rod is inserted in …
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Atmospheric pressure plasma chemical deposition by using dielectric barrier discharge system
During the last decade atmospheric pressure plasma sources have been very successful in various practical applications such as surface cleaning, modification and sterilization. Lately thin film deposition and etching applications of atmospheric plasmas are being extensively investigated. For …
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Nucleation and evolution of graphitic particles in atmospheric pressure microwave plasma
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Fundamental studies of charge transfer in multiphase atmospheric pressure plasma reactors
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Multiscale Simulation of Atmospheric Pressure Pulsed Discharges Used in Polymer Surface Functionalization
An integrated incompressible fluid dynamics model was developed to investigate the impact of gas flow on radical generation and surface treatment. Convective gas flow alters the relative abundance of reactive species in the discharge that affects the surface composition. Continuous surface …
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