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 20 for “"Physical controls"”.
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Bio-physical controls on tidal network geomorphology
… aims to bring further insights into the bio-physical controls on the geomorphology of tidal networks. To this end, a combination of remote sensing, modelling and field activities was employed. A geo-spatial analysis was performed at Queen Mary, University of London (UK), to address the …
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Physical controls on copepod aggregations in the Gulf of Maine
This thesis explores the role that the circulation in the Gulf of Maine (GOM) plays in determining the distribution of dense aggregations of copepods. These aggregations are an important part of the marine ecosystem, especially for endangered North Atlantic right whales. Certain ocean processes may …
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Physical Controls on Low and Mid-Latitude Marine Primary Productivity
<p>Strengthened stratification of the upper ocean, associated with either anthropogenic warming trends or natural climate oscillations, is generally expected to inhibit marine primary productivity at low and mid latitudes, based on the supposition that increased water column stability will decrease …
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Physical controls on copepod aggregations in the Gulf of Maine
This thesis explores the role that the circulation in the Gulf of Maine (GOM) plays in determining the distribution of dense aggregations of copepods. These aggregations are an important part of the marine ecosystem, especially for endangered North Atlantic right whales. Certain ocean processes may …
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Physical controls on water flow and solute transport in coastal aquifers
… study is to examine and quantify two important physical control factors, oceanic waves and evaporation, on the groundwater flow and solute transport in near-shore aquifers. For the investigation of wave effects, a Computational Fluid Dynamics (CFD) modeling tool, Fluent, is used to simulate …
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Physical controls on spring bloom dynamics in the Irminger Basin, North Atlantic
… higher trophic levels. This study focuses on the physical forcing controlling the spring bloom in the Irminger Basin (IB), situated between Greenland and Iceland. In situ data are available from four cruises to the region carried out under the UK Marine Productivity programme. This data set is …
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Physical controls on the distribution of phytoplankton round the Crozet Plateau, Southern Ocean
The spatial and temporal distribution of phytoplankton around the Crozet Plateau,<br/>Southern Ocean, is studied through a variety of satellite datasets and in situ cruise and<br/>Argo float measurements. Parts of the study area regularly contain phytoplankton<br/>concentrations significantly …
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Understanding Biogeochemical and Physical Controls on Methane Air-Sea Exchange Fluxes in the Pacific Ocean
<p>Methane and trace element samples were collected on GEOTRACES GP15 Pacific Meridional Transect (PMT) cruise conducted between the Aleutian Islands (57 °N) and Tahiti (20 °S) from September to November 2018. Uncertainty in methane air-sea exchange fluxes was determined using a propagation of …
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Identification of the physical controls on the deposition of Aptian and Albian deep water sands in the Bredasdorp Basin, South Africa
… identified. This study aims to explain the physical controls on the deposition of the 13A (Aptian) and 14A (Albian) sequence sands within the deep water region of the Central Bredasdorp Basin through identifying the mass transport facies and processes and relating these to tectono-eustatic …
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Open spaces in urban dwelling environments : regulations and realities, Taipei, Taiwan.
… of land utilization concerning encroachment, physical controls and maintenance are critical and require careful scrutiny with regard to open spaces. The study analyzes the existing land utilization of the open spaces in the residential areas of Taipei and compares it to the current …
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Murky waters: discerning among sources of natural variation under high uncertainty and at multiple scales
… size, depth, and light penetration are dominant physical controls on allochthony, but add that it sharply declines at high elevation due to changes in terrestrial primary production near or above tree line. I also found that primarily rain-fed rivers undergo large seasonal temperature …
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Interaction Design for Digital Musical Instruments
… behaviour that is abstracted from the physical controls. Often, the structure of this layer depends heavily upon: 1. The accepted design conventions of the hardware in use 2. Established musical systems, acoustic or digital 3. The physical configuration of the hardware devices and the …
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LITHOLOGIC AND HYDROGEOLOGIC CONTROLS ON THE OCCURRENCE, TRANSPORT, AND FATE OF MTBE IN FINE GRAINED GLACIAL-LACUSTRINE SEDIMENTS
… The purpose of this work is to characterize the physical controls on plume migration. In addition to standard well installation and geochemical sampling, geotechnical tools including cone penetration testing (CPT) and Membrane Interface Probe (MIP), were used to examine subtle changes in sand, …
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LITHOLOGIC AND HYDROGEOLOGIC CONTROLS ON THE OCCURRENCE, TRANSPORT, AND FATE OF MTBE IN FINE GRAINED GLACIAL-LACUSTRINE SEDIMENTS
… The purpose of this work is to characterize the physical controls on plume migration. In addition to standard well installation and geochemical sampling, geotechnical tools including cone penetration testing (CPT) and Membrane Interface Probe (MIP), were used to examine subtle changes in sand, …
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AirTap : a multimodal interactive interface platform with free-space cutaneous haptic feedback via toroidal air-vortices
… with touchscreen devices rapidly replacing physical controls, as in the case of automobiles and industrial equipment, there has been a loss of natural haptic cues and an increased need for operators to divert their attention from the task at hand into the touchscreen just to find the …
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An analysis of cybersecurity culture in an organisation managing Critical Infrastructure
… more on social engineering, email hygiene and physical controls. This cybersecurity culture study was conducted to gain insight into people's beliefs, attitudes and behaviours related to cybersecurity encompassing people, process and technology focussing on the operational technology …
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Investigating nitrate attenuation in an urban stream using stable isotope geochemistry and continuous monitoring
… will not be successful unless the biological and physical controls on water quality are thoroughly understood. The objective of this study was to identify the relative influences of tributary dilution, groundwater discharge, and biological processing on nitrate concentrations in an urban stream …
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Physical and chemical controls on carbonate precipitation in surficial hot springs and subterranean cold springs
… in Fogelpole Cave, IL, are compared to determine physical and chemical parameters controls on carbonate precipitation. Macroscale (> 0.5mm) morphology and depositional patterns of carbonate precipitation in these hot and cold springs are independent of water temperature and calcite saturation …
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Using Emerging Methods to Investigate Stream and Groundwater Interaction at Multiple Spatial Scales
<p>Fundamentally, streams represent physical conduits of water across gradients, yet a more holistic definition reveals stream corridors support a mosaic of living communities in a blend of surface and ground waters. The physical and biogeochemical patterns these dynamic systems support affect …