Theses and Dissertations
Now showing items 1-10 of 40
SCATTERING OF LOW-FREQUENCY SOUND BY COMPACT OBJECTS IN UNDERWATER WAVEGUIDES
(Monterey, CA; Naval Postgraduate School, 2018-06)
This dissertation considers the two-dimensional problem of the scattering of a monochromatic cylindrical wave by an infinite cylinder embedded in a homogeneous fluid. The exact solution is expressed as an infinite series ...
Ligand effects in aluminum cluster-based energetic materials
(Monterey, California: Naval Postgraduate School, 2017-09)
This dissertation examines the electronic structure and thermochemistry of low-valent aluminum clusters that may serve as precursors for new energetic materials. Clusters such as Al₅ₒ0Cp* ₁₂ (Cp*=C₅Me₅) have theoretical ...
Improved UUV positioning using acoustic communications and a potential for real-time networking and collaboration
(Monterey, California: Naval Postgraduate School, 2017-06)
Due to the lack of underwater navigation aids, a system capable of helping a submersible vehicle maintain position accuracy, permitting it to stay underwater for longer periods, is extremely desirable. The accuracy and ...
Thermal creep force: analysis and application
(Monterey, California: Naval Postgraduate School, 2016-06)
The existence of two motive forces on a Crookes radiometer has complicated the investigation of either force independently. The thermal creep shear force, in particular, has been subject to differing interpretations of the ...
Terahertz free electron laser: design, simulation and analysis
(Monterey, California: Naval Postgraduate School, 2014-12)
Terahertz (THz) radiation is a portion of the electromagnetic spectrum with many potential uses but without a wide availability of powerful sources. The free electron laser (FEL) has been demonstrated to produce intense, ...
(Monterey, California: Naval Postgraduate School, 2014-09)
In 1979,W. B. Colson and S. K. Ride proposed a new kind of electron accelerator using a uniform magnetic field in combination with a circularly-polarized laser field. A key concept is to couple the oscillating electric ...
Motion of the debris from a high-altitude nuclear explosion: simulations including collisionless shock and charge exchange
(Monterey, California: Naval Postgraduate School, 2014-06)
In 1962, the United States conducted its final atmospheric nuclear test. Since 1962, the American national laboratories have attempted to simulate the results observed in exo-atmospheric testing in order to understand and ...
Toward a micro-scale acoustic direction-finding sensor with integrated electronic readout
(Monterey, California: Naval Postgraduate School, 2013-06)
Several advances are made toward a microelectromechanical (MEMS) acoustic direction-finding sensor based on the Ormia ochracea fly’s ear. First, linear elastic stiffness models are presented and then validated by using a ...
Transport Imaging of Spatial Distribution of Mobility- Lifetime () Product in Bulk Semiconductors for Nuclear Radiation Detection
(Monterey, California. Naval Postgraduate School, 2012-06)
The objective of this research is to advance the development of a micro-analysis technique for characterizing the charge transport properties in bulk semiconductor materials for room temperature nuclear radiation detection. ...
Design and analysis of an electron gun/booster and free electron laser optical analysis
(Monterey, California. Naval Postgraduate School, 2010-09)
As interest in high power free electron lasers (FELs) has increased, the FEL and accelerator communities have been faced with the need to develop high bunch charge, high repetition rate, low emittance electron sources ...
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