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 13 of 13 for “"Wave mechanics"”.
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Wave Mechanics in Constructed Oyster Reefs and the Design of Nature-Based Coastal Adaptation
… most projects to-date are designed primarily for wave attenuation and fail to consider both the environmental conditions necessary for long-term oyster reef sustainability as well as the importance of education and outreach in fostering environmental stewardship. Realizing the promise of …
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A Dynamic, Interactive Approach to Learning Engineering and Mathematics
… using numerical methods, and two-dimensional wave mechanics using analytical methods. The wide range of topics and fields of study give CDF technology a powerful edge in connecting with all types of learners through interactive learning.
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Periodic orbit analysis of the Helmholtz equation in two-dimensional enclosures
… equation. A review of the links between ray and wave mechanics is given including WKBJ (Wentzel, Kramers, Brillouin and Jeffreys) and EBK (Einstein, Brillouin, Keller) methods. It is also noted that some mode shapes in chaotic enclosures are scarred by the short periodic orbits. This motivates …
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The mechanics of precision presplitting
… the most widely discussed theory about the mechanics of the presplit formation, that of shockwave collisions, does not appear to be applicable for this method of presplitting.</p> <p>This research has disproven this theory based on insufficient magnitude of the shockwave from modeling with …
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A pulsed laser loading technique for controlled dynamic loading of nanostructred materials
… for controlling and calibrating the stress waves created from this ultra-high loading rate technique. In the high-power pulsed laser loading technique, a laser produced compressive stress pulse passes through a substrate and reflects at a traction free surface as a tensile wave of opposite …
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Dispersion of fine particles by wave-induced mass transport near a circular island
… describing the diffraction of an incoming plane wave by a vertical cylinder. From the free-surface motion, we describe the boundary-layer flow field U0i near that cylinder. The flow field is then used to calculate the modified convective velocities Ui and symmetric dispersivities Dij. Through our …
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The distribution of wave heights and periods for seas with unimodal and bimodal power density spectra
Observed distributions of wave heights and periods taken from one year of surface wave monitoring near Martha's Vineyard are compared to distributions based on narrow-band theory. The joint distributions of wave heights and periods and the marginal height distributions are examined. The observed …
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Observations of ocean fluctuations between 15 and 23 hour periods in the Pacific
… further shown that resonant barotropic gravity wave modes (Platzman et al., 1981) are not consistent with the data. The cause of these flu ctuations remains unresolved, but the data and other oceanographic measurements put many constraints on the process causing these fluctuations.
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Radioactivists: community, controversy and the rise of nuclear physics
… Gamow, too, began to apply the novel methods of wave mechanics to nuclear problems, gradually transforming the bounds of the possible and the plausible in nuclear research. A reconfigured network of embodied practice gradually crystallised around the development of these material and conceptual …
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An investigation of wave-induced momentum flux through phase averaging of open ocean wind and wave fields
… influence of the dominant, wind-driven, surface waves on the vertical flux of horizontal momentum in the marine surface layer over open ocean conditions. Through a procedure which involves phase averaging the wind fields at the period of the dominant waves, the wave-induced component of the …
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Phase-resolved reconstruction and forecast of nonlinear irregular wave field based on direct numerical simulations
… reconstruction and forecast of ocean wave field based on measurements is of basic scientific interest and practical importance in ocean science and marine engineering. This capability aids and expands the use and interpretation of field and wave basin measurements, contributing to the …
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Group theoretic properties of some Schröedinger equations : systematic derivation
<p>In this thesis, I study the group theoretic structure of the Schrodinger equations of simple systems by making use of a new systematic method. Group theoretic analysis of Schrodinger equations have been made previously by numerous physicists. The groups found may be classified as: a) geometrical …