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 “"dynamic scaling"”.
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Probing the dynamic scaling hypothesis in 1-D coarsening particle systems
… characteristic length scales grow in time. The Dynamic Scaling Hypothesis which asserts that upon suitable scaling of space, features of latetime structures are indistinguishable is the main consideration in this thesis and we will investigate two 1-D coarsening dynamical systems, one for which …
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Wedged Vortex Generator Applications for Marine Vessels
… (VGs) in reducing viscous drag in hydrodynamic applications. Initial experimental and computational fluid dynamics analyses identified wedge-shaped VGs as the optimal design for flow manipulation. Comparative testing of three wedge shaped VG sizes at 1.3 m/s revealed the most effective …
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Integrated Voltage Regulators with Thin-Film Magnetic Power Inductors
… the era of diminishing returns from Moore's Law scaling. In particular, integration of thin-film magnetic materials will enable improvements in energy efficiency of digital computing applications by enabling integrated power conversion and management with on-chip power inductors. Integrated …
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Dynamic Stability and Handling Qualities of Small Unmanned-Aerial-Vehicles UNMANNED-AERIAL-VEHICLES
<p>General aircraft dynamic stability theory was used to predict the natural frequencies, damping ratios and time constants of the dynamic modes for three specific small UAVs with wingspans on the scale from 0.6 meters to 1.2 meters. Using USAF DatCom methods, a spreadsheet program for predicting …
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GreenMap: MapReduce with ultra-high-efficiency power delivery
… further propose a modification of GreenMap with dynamic scaling to achieve a favorable tradeoff between response time and power efficiency.
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Design and Construction of a 1/3-Scale, 1986 Cessna 172P Flight-Test Aircraft
… shown that by strictly following geometric and dynamic scaling criteria, the scaled aircraft's flight performance can be predictably related to the full-scale aircraft's performance. Many companies have performed scaled flight-testing of Remotely Piloted Vehicles (RPV's) and there is much …
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Out-of-equilibrium dynamics in a tuneable homogeneous Bose gas
… thesis describes studies of out-of-equilibrium dynamics in an interacting homogeneous Bose gas. We use the versatile platform of an ultracold gas of $^{39}$K, prepared in an optical box trap. The experiment features both tuneable interaction strengths and a homogeneous atomic density. We examine …
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Computational studies of thermal and quantum phase transitions approached through non-equilibrium quenching
… transitions, both are under the framework of KZ scaling. For classical phase transition, I develop a non-equilibrium quench (NEQ) simulation that can completely avoid the critical slowing down problem. For quantum phase transitions, I develop a new algorithm, named quasi-adiabatic quantum Monte …
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Non-Equilibrium Disordering Processes In binary Systems Due to an Active Agent
… naturally into two classes: for the first, the dynamics of the walker conserves the total magnetization of the system, for the second, it does not. These distinct dynamics are investigated in part I and II respectively. In part I, we investigate the disordering of an initially phase-segregated …
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Relaxation phenomena during non-equilibrium growth
… of the surface width is the famous Family-Vicsek scaling relation. We discuss an extended scaling relation that yields a complete description for various growth models. For two linear Langevin equations, namely the Edwards-Wilkinson equation and the Mullins-Herring equation, we furthermore study …
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Structure and faceting of low-symmetry metal surfaces
… process, the time evolution follows a slow dynamic scaling behavior, consistent with either a logarithmic or power-law dependence. Throughout this thesis, comparisons are made with results obtained by other surfacesensitive techniques. The complimentarity of these techniques is worth …
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Design, development and evaluation of a distributed electric propulsion testbed aircraft
… and refinement of a high-fidelity flight dynamics model. Plans for a dynamically-scaled variant of this configuration were developed with weight and inertial scaling targets within 5% of the ideal values. For the DEP modifications, an extensive system engineering study was performed to …
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Magnetoelectric Composites for On-Chip Near-Resonance Applications
… the frame work of Structure Zone Model (SZM) and Dynamic Scaling Theory (DST). In parallel to BaTiO3 films, well-ordered nanocomposite arrays [Pb1.1(Zr0.6Ti0.4)O3/CoFe2O4] with controlled grain orientation were developed and investigated by a novel hybrid deposition method. The influence of the …
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Tecniche per il controllo dinamico del consumo di potenza per piattaforme system-on-chip
… hardware assisted image compensation that allows dynamic scaling of the backlight with a negligible impact on QoS. The proposed approach overcomes CPU-intensive techniques by saving system power without requiring either a dedicated display technology or hardware modification. Thesis Overview The …
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Synthesis-Structure-Property Relationships in Lead-Free Piezoelectric Materials
… substantially perturbed the local octahedral dynamics and resulted in localized nano polar regions with lower symmetry. These localized polar distortions were found to persist much above the Curie temperature (Tc). Polarization "C electric field (P-E) hysteresis loop analysis indicated …