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 15 of 15 for “"Polder"”.
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Casimir-Polder interaction in second quantization
The Casimir-Polder interaction between a single neutral atom and a nearby surface, arising from the (quantum and thermal) fluctuations of the electromagnetic field, is a cornerstone of cavity quantum electrodynamics (cQED), and theoretically well established. Recently, Bose-Einstein condensates …
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An analysis of hydraulic, environmental and economic impacts of flood polder management at the Elbe River
Flood polders are part of the flood risk management strategy for many lowland rivers. They are used for the controlled storage of flood water so as to lower peak discharges of large floods. Consequently, the flood hazard in adjacent and downstream river reaches is decreased in the case of flood …
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Cavity QED with superconductors and its application to the Casimir effect
… weiten Temperaturbereich, sowie die Casimir-Polder-Wechselwirkung zwischen einem Atom und einer solchen Oberfläche. Hierzu wurden vorwiegend numerische und asymptotische Rechnungen durchgeführt. Die optischen Eigenschaften der Oberflächen werden dann aus dielektrischen Funktionen oder …
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Long-range interatomic interactions: Oscillatory tails and hyperfine perturbations
… atoms, in both the van der Waals and Casimir-Polder regimes. The retardation regime is reached when the finiteness of the speed of light becomes relevant. Provided that both atoms are in the ground states, the retardation regime is achieved when the interatomic distance, R, is larger than 137 …
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The Mangrove Walks: An Econometric Analysis of Climate Migration Drivers from Coastal Bangladesh and their Geopolitical Impacts
… or catastrophic migration predominates in the polder areas of Bangladesh. I use regression analysis on a 1,025 household, 2016 IRRI/IWMI analysis of Polder 28/1, 28/2, and 30 within Satkhira district to determine factor correlations with migration. Progressive salinization is the strongest …
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Fluctuation-mediated interactions of atoms and surfaces on a mesoscopic scale
… dispersion interactions (Van der Waals-Casimir-Polder interactions), and state broadening (Purcell effect) because the field is subject to boundary conditions. Such effects can be observed with high precision on the mesoscopic scale which can be accessed in micro-electro-mechanical systems (MEMS) …
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Sustainable Intensification of Agriculture: Opportunities and Challenges for Food Security and Agrarian Adaptation to Environmental Change in Bangladesh
… of SAI and farmer surveys in the embanked polder region of coastal Bangladesh. The second article investigates the global food security and environmental impacts of already adopted High Yielding Variety (HYV) rice and double-cropped rice systems in Bangladesh using a spatial partial …
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The interior Casimir problem
… which is the interior analog of the Casimir-Polder result. Although it is not a simple power law, the dependence of the force on the separation of the object from the containing sphere is universal. Additionally, we compute the exact Casimir force between two metallic spheres contained one …
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Sicherung und Entwicklung von Böden und ihren Funktionen in Niederungen durch Naturschutzmaßnahmen
… Standortausprägung in einem Beispielgebiet, dem Polder "Götz-Gollwitz", der in der entwässerten Niederung der "Mittleren Havel" (Bundesland Brandenburg)liegt, - wird untersucht, wie die Maßnahmen Wiedervernässung und Extensivierung auf die Bodeneigenschaften wirken und welche Veränderungen zum …
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The role and potential of flood risk management in shaping land use – Flood-peak polders of the Tisza River from the perspective of integrated planning challenges
… the Tisza River, the development of flood-peak polders (in line with the Further Development of the Vásárhelyi Plan Program – or VTT according to the Hungarian acronym) was a significant initiative in terms of flood management and rural development in the period 2000-2020, but the assessment of …
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Scattering theory approach to electrodynamic Casimir forces
… half spaces, by demonstrating the Casimir-Polder to van der Waals cross-over, and by computing the Casimir interaction energy of two infinite, parallel, perfect metal cylinders either inside or outside one another. Furthermore, it is used to obtain recent results: the Casimir energies of i) …
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Quantum reflection of Bose-Einstein Condensates
… is described by the weakly attractive Casimir-Polder potential which is classically predicted to accelerate an incident atom toward the surface where it will interact strongly with the internal modes of the surface, lose energy, and land in a bound state of the surface. When the incident atom …
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Liminal Affections: Exploring shapes of free association and its potential to inform novel academic practice within the arts and humanities
Liminal Affections does not follow the structure of a traditional practice-based doctoral thesis. This interdisciplinary, ahistorical, non-linear, and infinite atlas on the theory and practice of free association aims to serve as an invitation to explore various approaches to academic storytelling …
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Analysis of flood hazard under consideration of dike breaches
… associated return periods. Finally, scenarios of polder deployment for the extreme floods with T = 200, 500, 1000 were simulated with IHAM. The developed IHAM simulation system represents a new scientific tool for studying fluvial inundation dynamics under extreme conditions incorporating effects …