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 9 of 9 for “"SERN"”.
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Einfluss einer Heckklappe auf die Düsenströmung im Hyperschall
… deals with the flow field at a two-dimensional SERN-Nozzle. Main focus lies on the flow around the nozzle flap and the occurring separation of the boundary-layer of the outer flow. The objective is to get a better understanding of the interacting flow fields and to improve the nozzle performance …
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Experimentelle Untersuchungen zur Düsen- und Heckströmung eines Scramjets
… two different Single Expansion Ramp Nozzles (SERN) were experimentally investigated. For these experimental investigations existing measurement techniques (PSI, Pitot, Schlieren photograph) and additional measurement methods (Pressure Sensitive Paint, IR-Thermography) were applied in order to …
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Exploring Passive Flow Control Techniques Applied to a Supersonic Multistream Rectangular Nozzle
… and exit through a Single Expansion Ramp Nozzle (SERN) onto an aft-deck. Previous efforts for the nominal nozzle configuration have shown that an instability initiated at the splitter plate trailing edge (SPTE) influences the effectiveness of the third stream as a barrier for the aft-deck and …
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Investigating the Interaction of a Supersonic Single Expansion Ramp Nozzle and Sonic Wall Jet
… models and create a basis for future SERN and aft deck designs.</p>
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Fabrication of multifunctional nanocomposites using functionalized carbon nanofibers
In this work, several novel techniques to fabricate nano-engineered polymeric composites (or nanocomposites) containing functionalized carbon nanofibers (CNFs) were developed. The methodologies address current manufacturing issues of nano-engineered polymeric composites by effectively incorporating …
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Abdominal aortic aneurysms : identification by self-examination and analysis of variation in matrix metalloproteinases with peak wall stress
Abdominal aortic aneurysms (AAAs) cause 5,000 deaths a year in the UK. Self-examination for AAAs may provide an economic and practical solution. Matrix metalloproteinase (MMP) concentration is elevated and levels of their natural inhibitors - Tissue Inhibitors of Matrix Metalloproteinases (TIMPs) …
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Epitaxy of Self -Assembled Nanostructures by Metalorganic Chemical Vapor Deposition
The future of self-assembled nanostructures lies in the selective placement of individual nanostructures for applications such as integrated optoelectronics, quantum computing and quantum encryption. By utilizing InGaAs thin films, a method of selective area epitaxy has been developed. Not only is …
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Transport und Strukturbildung in magnetischen Hybriden
… des verwendeten Magnetometers wesentlich verbes- sern. Bei den Messungen der Magnetisierungskurven M(Hi) für beide Systeme stellt sich heraus, dass FGSEPS sich entsprechend einer su- perparamagnetischen Substanz verhält. Bei der Magnetisierungskurve M(Hi) des Ferrogels FGP123 kann ein …