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.
Results
Showing 1 to 20 of 137 for “"surf"”.
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LIMBS IN SURF
<p>A collection of poetry.</p>
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Surf zone hydrodynamics
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.
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The field measurement of suspended sediment in the surf zone
Suspended sediment concentrations were measured in the nearshore environment at the site of the proposed breakwater of the Koeberg Nuclear Power Station. Reference concentrations are evaluated from the field data. Two sampling systems to obtain these concentrations were designed and constructed. …
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Analysis of acoustic communication channel characterization data in the surf zone
A channel characterization experiment for the underwater acoustic communication channel was carried out at Scripps Pier in May 1999. The experiment investigated acoustic transmission in very shallow water and breaking waves. In analyzing the data, several questions arose. The majority of the …
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Analysis of acoustic communication channel characterization data in the surf zone
Thesis (S.M. in Electrical Engineering)--Joint Program in Oceanography and Oceanographic Engineering (Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and the Woods Hole Oceanographic Institution), 2000.
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Exploratory Study of Participants' Perceptions of the Benefits of Surf Camps
… was to discuss and validate the benefits of surf camps. Additionally, the results of this study will aid the further research of adolescents achieving higher self-esteem levels, increased positive self-worth, and behavior change through non-traditional sports. The primary research question …
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Design of a prototype autonomous amphibious WHEGS robot for surf-zone operations
… robots ability to maneuver effectively in the surf-zone.
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The effect of fluid acceleration on sediment transport in the surf zone
The surf zone is defined by highly non-linear, breaking waves that have very different acceleration signatures beneath their respective crests and troughs. The consequences of this dissimilarity on sediment transport is not fully understood. This thesis develops methodologies to predict sediment …
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A Capacitance Wavestaff and Measurements of Wave Height Decay in the Surf Zone
… was developed to measure wave heights in the surf zone. Data were used to test the assumption that wave height decays linearly across the surf zone. The instrument system consisted of two wavestaffs and housing which contained the needed electronic circuits and a data recorder. Acceptable …
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Waves, currents, and sediment transport in the surf zone along long, straight beaches
… near-shore hydrodynamics model consists of wave, surface roller, and near- shore current models. Both wave and surface roller models are based on simple energy balance equations and, based on these models, the near-shore current is determined from two-layer 2DH momentum equations. Coupled with a …
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Wave boundary layer hydrodynamics and cross-shore sediment transport in the surf zone
… mostly occur in the nearshore region, or surf zone. They are caused by the local imbalance of sediment transport, both in long-and cross-shore directions. Cross-shore sediment transport is the small difference between two large components: the on- and offshore transport rates. Both …
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The Effects of Surf-Driven Development on the Local Population of Playa Gigante, Nicaragua
… specifically to North American and European surfing tourists, who travel to Nicaragua for the powerful surf found on the Pacific coast. Even though many of the hotels themselves are owned by foreign tourism operators the Nicaraguans have managed to find employment that can provide new …
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Rapid remote determination of hydrographic data for modified surf Index calculations and naval applications
… rapidly obtain reliable real-time data for the surf zone, a high-energy environment in which beach profiles and wave regimes may not be known a priori, are difficult to measure remotely, and can change rapidly over time or following extreme weather events. The Naval Beach Group (NBG) has a …
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Development and application of a field instrumentation system for the investigation of surf zone hydrodynamics
… steady flow conditions. The wave gauges are surface-piercing digital sensors, relying on the presence or absence of water at 128 individual sensing electrodes spaced 1.5 cm apart along the front surface of the wave gauge. On command, the instantaneous water surface elevation is measured, then …
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Characterization of robotic tail orientation as a function of platform position for surf-zone robots
The Naval Postgraduate School Small Robot Initiative is an ongoing effort to develop autonomous robotic platforms for military applications. The latest design in this series, a quadruped robot with a tail for stability and obstacle climbing, is currently under development in collaboration with Case …
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Detecting Breaking Waves and Measuring Bore Speeds in Optical Surf Zone Imagery using Machine Learning
… revealing low but systematic bias within the surf zone. Despite this limitation, a qualitative analysis of the inverted bathymetry demonstrates that the method captures morphological change over the course of the experiment. This method shows promise as a robust, low-cost approach for …
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Validation of New Technology using Legacy Metrics: Examination of Surf-IA Alerting for Runway Incursion Incidents
… a flight deck alert to avoid high speed surface collisions for runway incursions classified as serious by legacy metrics. This study demonstrated an innovative method of utilizing expert raters and actual high-risk incidents to identify shortcomings of using legacy metrics to measure the …
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