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 52 for “"swells"”.
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Sodium hypophosphite inhibition of Clostridium botulinum in pasteurized comminuted pork
… 27°C. Packages were removed from incubation as swells developed and were analyzed for botulinal toxin by the mouse bioassay. In the first experiment, first toxic samples occurred at 5, 12, and 60 days of incubation for 0, 1000, and 3000 ppm sodium hypophosphite, respectively. Combinations of …
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A Novel Glucose Sensor Based on a Deflecting Membrane MEMS Device
… a glucose-sensitive hydrogel membrane, which swells reversibly in the presence of a glucose containing solution. The amount of swelling is related to the concentration of glucose.
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Structure and dynamics of the Pacific upper mantle
… correspond to a series of northwest-trending swells associated with the major hotspots of the Society, Marquesas, and Hawaiian Islands. Where these swells cross the corridor, they are underlain by high shear velocities throughout the uppermost mantle, so it is unlikely that their topography is …
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A series-connected VSC for voltage regulation, balancing and harmonics mitigation
… of voltage disturbances such as voltage dips, swells, unbalances and harmonics. The effect of these disturbances may be as bad as a complete shut down of a production line, hence giving rise to the growing interest and need, for mitigation of such power quality problems. The objective of this …
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Development of a grid emulator for network integration studies
… behavior of connected systems. Voltage dips and swells are implemented to test the system’s performance.
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Modeling and Analysis of a Dynamic Voltage Regulator
… renewable energy sources, random voltage sags, swells and disruptions are already a major issue in power systems. Recent advances in power electronic devices have provided a platform for new solutions to the voltage support problem in power systems. One promising solution is the Dynamic Voltage …
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The effect of a shallow low viscosity zone on mantle convection and its expression at the surface of the earth
… sources at depths below the plate: mid-plate swells, the evolution of fracture zones, the mean depth and heat flow relationships with age and the observation of small scale (150-250 km) geoid and topography anomalies in the Central Pacific and Indian oceans. Convective models are presented of …
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Three-dimensional acoustic propagation through shallow water internal, surface gravity and bottom sediment waves
… from the directional spectrum of long swells and used for three-dimensional numerical modeling of acoustic propagation. As a result, considerable normal mode amplitude scintillations were observed and shown to be strongly dependent on horizontal azimuth, range and mode number. Full …
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Three-dimensional acoustic propagation through shallow water internal, surface gravity and bottom sediment waves
… from the directional spectrum of long swells and used for three-dimensional numerical modeling of acoustic propagation. As a result, considerable normal mode amplitude scintillations were observed and shown to be strongly dependent on horizontal azimuth, range and mode number. Full …
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Islanding Detection and Cybersecurity in Inverter-Based Microgrids Under a High-Noise Environment
… grounding issues, voltage sags, voltage swells, electromagnetic interference, and power quality issues that affect islanding detection. Transient events, like lightning-induced traveling waves can also introduce noise levels exceeding the voltage amplitude, disturbing conventional …
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On the use of Statistical Downscaling for the Study of Coastal Hazards in the Pacific
… such as tropical cyclones or distant source swells. Quantifying very low probability events from observations, results in analysis highly dependent of the length of the record, and even when available records may be enough for quantifying univariate extremes, compound events are impossible to …
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Field-structured chemiresistors : tunable sensors for chemical-switch arrays
… When exposed to chemical vapors, the polymer swells only slightly, yet this is amplified into large, reversible resistance changes—as much as 9 decades at a swelling of only 1.5 %. These conductor-insulator transitions occur over such a narrow range of analyte vapor concentration that these …
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"What was repeated had weight" : ordinary rituals in the poetry of Donald Hall, Derek Walcott, Seamus Heaney, and Louise Glück.
Twentieth- and twenty-first century poetry swells with the ordinary; poets chronicle mundane parts of daily life in their work, often describing these quotidian details with surprising reverence. While this fascination with the ordinary has been well documented in literary criticism, the …
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Analysis and design of wave scattering by weakly non-uniform waveguides
… areas to provide protection against the incoming swells, or the design of the material and geometrical properties of the cross section of pipelines, risers and mooring lines such that vibration transmission is minimized. The objective of this thesis is to understand how to tune the medium small …
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The effect of a shallow low viscosity zone on mantle convection and its expression at the surface of the earth
… sources at depths below the plate: mid-plate swells, the evolution of fracture zones, the mean depth and heat flow relationships with age and the observation of small scale (150-250 km) geoid and topography anomalies in the Central Pacific and Indian oceans. Convective models are presented of …
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Hydrological urbanism in China's Pearl River Delta : how water landscape shapes the urban form in a changing climate
… cleans the water from upper streams and swells into a wetland buffer between big infrastructures and neighborhood. Water behaves as the park to shape the neighborhood and recreational space for public access. The thesis investigates PRD through urban and hydrological analysis on different …
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Prised out of paradise : reconsidering cooperatives, in response to climate gentrification in Miami's communities of color
… While Miami's surplus of luxury real estate swells, climate change and speculative development have combined to threaten the stability of the city's multi-ethnic core. Instead, it re-considers the cooperative, and the collective ownership of housing, as a mechanism by which communities can …
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Wireless chemical sensing schemes using environmentally sensitive hydrogels
… change, e.g. alkali to acidic pH, hydrogel swells or shrinks. This reversible volume change can be coupled to capacitive, inductive or other sensing mechanisms. Despite many years of research, hydrogel-based sensors have not been of practical utility. This has been due to several reasons …
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Intermediate phases of surfactant - water mixtures
… the Ia3d cubic phase. The addition of C181-138 swells the surfactant bilayers and promotes flatter interfaces, but does not stabilise the intermediate phase, as only small additions of oil suppress this phase.
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The biogeography and biodiversity of the Namibian intertidal seaweed flora
… completely or largely protected from incoming swells were not included. Three sites in the southern region were semi-exposed, in that they occurred within relatively large bays and were partially protected from dominant winds, they were however relatively exposed to the open ocean. Two to three …
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