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 31 for “"Microwave plasma"”.
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RESTAURANT FOOD WASTE MANAGEMENT USING MICROWAVE PLASMA GASIFICATION TECHNOLOGY
… for the treatment of restaurant waste using a microwave generated plasma for pyrolysis and gasification. The developed system has been used to treat waste from a city centre fast food restaurant. The system was designed with the aim of reducing the amount of waste being sent to landfill by …
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Synthesis of Carbon Nanotube Materials from a Microwave Plasma
… fast, and industrially-relevant processes using microwave plasma for synthesis of CNT materials starting from widely-available, inexpensive precursor materials. The plasma system has been developed to accommodate multiple gases including mixtures with hydrogen fractions of at least 50%. …
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Establishing a calibration for a microwave plasma continuous emissions monitor
… metals as a viable option to EPA Method 29, a Microwave Induced Plasma (MIP) system is under development for real-time atomic emission spectroscopy in stack exhaust. This MIP-CEM has a nebulizer calibration subsystem attached to the sample line for real-time span calibration of the monitored …
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Microwave plasma synthesis of nano-sized silicon carbide at atmospheric pressure
… pulsed laser deposition, sol-gel processes, microwave heating and various plasma techniques. Among the different synthesis methods reported in the literature, very few experiments investigate the microwave-induced plasma synthesis of SiC nanoparticles. The few reported studies show promising …
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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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Design, implementation and control of microwave plasma gasification system for syngas production
… It applies the newest technologies of microwave plasma on a traditional method known as gasification. The simulation of this system has been achieved through a high frequency structure simulator to decide the best design of the structure. Microwave radiation at the frequency of 2.45 GHz …
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Optical spectroscopy and langmuir probe diagnostics of microwave plasma in synthesis of graphene-based nanomaterials
… and electrical properties. As roll-to-roll plasma deposition systems begin to provide means for large scale production of these nanodevices, a detailed understanding of the environment responsible for their synthesis is imperative in order to more accurately design and control the growth of …
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Development of a low-power molecular microwave plasma and its application as an atom source for atomic spectroscopy
… 1) To develop a high-efficiency low-power TM-010 microwave cavity for nitrogen support gas at atmospheric pressure, 2) To discover and physically characterize potential laser and emission spectroscopic applications of this atom source, with a particular emphasis on laser-induced fluorescence. The …
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Experimental and numerical investigation of hydrogen production in a microwave oven
… storage and transportation of renewable energy. Microwave plasma-driven hydrogen production is a newly emerging technology that may be an alternative way for the future energy applications. Yet, hydrogen production from steam plasma is one of the least researched techniques and lacks experimental …
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Post-crystallisation treatment and characterisation of polycrystalline silicon thin-film solar cells on glass
… process in a reactor with four linear microwave plasma sources, the lateral non-uniformity of the open-circuit voltage is reduced to less than &177; 3% over an area of 400 cm&178;. We find that the ratio of ECV to Hall average doping concentration for most of our poly-Si films lies in …
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Characterization of Diamond-Semiconductor Interfaces
… a function of the method of diamond deposition (microwave plasma versus hot filament chemical vapor deposition) as well as substrate material (Si versus SiNx adhesion layers used to produce GaN-on-diamond structures). Finally, a detailed analysis of a GaN-diamond interface formed without the use …
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Engineered iron oxide nanoparticle-polymer composites for the removal of dissolved arsenic and antimony
… methods, such as X-Ray Diffraction (XRD), microwave plasma atomic emission spectrometry (MP-AES) and Malvern Zetasizer, were used to characterise the properties of the composites and analyze dissolved As and Sb concentrations. Details of the experimentalprocedures and results have been …
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Swirl-stabilized lean-premixed flame combustion dynamics: An experimental investigation of flame stabilization, flame dynamics and combustion instability control strategies
… is focused on establishing the effectiveness of microwave plasma discharges in improving combustor flame dynamics through minimizing heat release and pressure fluctuations. The effect of continuous, volumetric, direct coupled, non-equilibrium, atmospheric microwave plasma discharge on a swirl …
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Fibre Modification for Concrete Reinforcement using a Novel Atmospheric Microwave Induced Plasma Torch (MIPT)
This research investigates the design of a novel microwave induced plasma torch for the surface modification of non-corrosive fibres. The system was developed to reduce the equipment cost, and production time needed in the conventional plasma treatment. To generate a consistent and low-cost …
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Remote three-dimensional temperature sensing using planar laser induced fluorescence : development and applications to microwave heated liquids
Microwave heating is an important technology that has been hampered in application by difficulties in measuring temperatures and temperature distributions during the microwave heating process. This thesis describes the development of a 3D imaging fluorescence thermometry system that was used to …
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High quality high current ion beam generation and transport systems including plasma-based space charge neutraliser
… solver were used to determine beam optics.2. Plasma generation: The ion beam is extracted from a plasma generated in the ion source. Therefore, thequality of ion beams depends largely on the characteristics of the source plasma. Plasma diagnostic tools were used to understand the desired …
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Synthesis Of Graphene Nanomaterials And Their Application In Electrochemical Energy Storage
… and structure of graphitic petals grown by microwave plasma-enhanced chemical vapor deposition on oxidized silicon substrates were investigated through process variation and materials analysis. Insights gained into the growth mechanism of these graphitic petals suggest a simple scribing …
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Highly Conductive Ultrananocrystalline Diamond Thin Films via Nitrogen Incorporation
… total nitrogen content were synthesized by a microwave plasma-enhanced chemical-vapordeposition method using a CH4/Ar gas mixture with added nitrogen gas. The electrical conductivity of these nitrogen-doped UNCD films increases by five orders of magnitude, up to 143 O -1·cm-1 when …
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