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 34 for “"Transient phenomena"”.
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Transient Phenomena in Annular Combustors
This thesis presents a detailed assessment of the transient phenomena related to the operation of annular gas turbine combustors, namely ignition and blow-off. The experiments were conducted on complex multi-burner geometries, close to realistic combustors, to provide a wide data set including …
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Transient phenomena in false twist texturing
Thesis. 1976. M.S. cn--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Microwave Transient Phenomena and Magnetic Susceptibility Calculations
Made available in DSpace on 2015-05-13T15:17:43Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7606946.PDF: 6261066 bytes, checksum: 12f0084d38f5355b69238e5a98658d01 (MD5) Previous issue date: 1975
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Transient Phenomena in Bounded Fast Multiplying Assemblies
Made available in DSpace on 2014-12-14T06:25:58Z (GMT). No. of bitstreams: 1 7616151.pdf: 4537581 bytes, checksum: 4f55d0d37439f95a85ff875055a3ed6f (MD5) Previous issue date: 1976
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Studies of transient phenomena in heterogeneous catalysis
… of CO, propene and ethene are examined in other transient experiments which involve step changes in feed concentration. Comparison of these experiments with the predictions of a mathematical model leads to estimates of the rate constants for CO and alkene oxidation. A modified elementary step …
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Semiclassical theory of collisional relaxation mechanism in microwave transient phenomena
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-04-22T20:19:05Z No. of bitstreams: 1 1975_liu.pdf: 3867108 bytes, checksum: 4c905621f5f62570d4bb71f313f8c4b8 (MD5)
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Generation of high intensity femtosecond laser pulses and applications to studies of transient phenomena
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1984.
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Transformer Thermal Assessment under Geomagnetically Induced Current Conditions
… of transformers during normal operation or transient phenomena. However, the multi-physics behavior of transformers and the nonlinear and frequency-dependent parameters make this modeling a challenging task. This thesis aims to develop a more accurate transformer model for representing the …
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Adaptive sampling of transient environmental phenomena with autonomous mobile platforms
… and earth sciences, hypotheses about transient phenomena have been universally investigated by collecting physical sample materials and performing ex situ analysis. Although the gold standard, logistical challenges limit the overall efficacy: the number of samples are limited to what …
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Compression and phase reconstruction of temporal fringe pattern data
… usage of optical metrology techniques for transient phenomena studies. This form of analysis, nevertheless, necessitates large data storage and processing time for the fringe pattern intensity and deformation phase. Current compression schemes do not facilitate efficient data retrieval and …
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An Enhanced Transient Solid Oxide Fuel Cell Performance Model
… and process design. To this end, an enhanced transient performance model has been developed. The present thesis enhances transient modeling and simulation via characterization of two important transient phenomena. They are bimodal stimuli (i.e., simultaneous changes in reactant supply and load …
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Simulation of Transients and Transport in Plasma Processing Reactors
… 3D hybrid models were developed to investigate transient phenomena (time variation of plasma properties) during pulsed operation of ICP reactors. Employing the 2D model, it was demonstrated that utilizing transients during pulsed operation, energetic negative ions can be extracted from pulsed …
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Numerical methods for solar tomography in the STEREO era
… coronal electron density and estimation of local transient phenomena, such as coronal mass ejections, from empirical observations acquired by instruments onboard the STEREO spacecraft. We present a first look at tomographic reconstructions of the solar corona from multiple points-of-view, which …
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Thermomechanical effects of ground-based directed energy weapons on satellites and Intercontinental Ballistic Missiles
… behavior, both steady state and transient behavior of satellite and missile structures. Thermal energies used for simulation correspond to high energy laser flux available at low earth orbits as reported in literature. A brief review of the concepts involved is outlined. The …
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Simplified Combustion Modeling of Composite Propellants
… studies with more complex kinetic mechanisms, transient phenomena, and three-dimensional particulate propellants.
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Numerical instabilities in power system transient simulations
… but also in the simulation of electromagnetic transient phenomena. Because of the different structure of the two sets of equations, computational efficiency can be improved if both sets of equations are solved separately, with the result from one set of equations showing up in the other set of …
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A matched filter technique for slow radio transient detection and first demonstration with the Murchison Widefield Array
Many astronomical sources produce transient phenomena at radio frequencies, but the transient sky at low frequencies (< 300 MHz) remain relatively unexplored. Blind surveys with new widefield radio instruments are filling this gap. Although many of these instruments are limited by the classical …
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Dynamic Analysis of an Inflatable Dam Subjected to a Flood
… which allows the prediction of a number of transient phenomena such as the generation of upstream advancing waves, and dynamic structural collapse. Stresses in the dam material were monitored to determine when rupture occurs. An iterative study was performed to find the service envelope of …
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Sixteen-pole programmable synchronous switch
… The switch can be quite useful in studying transient phenomena on three-phase system models. The switch is useful in studying responses of various relaying schemes where it is desirable to test the relay at precise switching angles. Additionally, the switch would be very useful to test or …
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