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 5 of 5 for “"Ratchet effect"”.
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Development of track-walking DNA nanomotors
… mechanisms and driving methods, including ratchet and burn-the-bridge for the former and fuels, enzymes, light for the latter. These nanowalkers have been applied to nanoscale molecular transportation, chemical synthesis and more. However, the design principles of these artificial …
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Two Examples of Ratchet Processes in Microfluidics
The ratchet effect can be exploited in many types of research, yet few researchers pay attention to it. In this thesis, I investigate two examples of such effects in microfluidic devices, under the guidance of computational simulations. The first chapter provides a brief introduction to ratchet …
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Electronic properties of bilayer graphene in a steady magnetic field
… electronic Hamiltonian describing the orbital effect of the magnetic field. We consider the effect of the magnetic field on the Lifshitz transition, in which the Fermi surface breaks up into separate pockets at very low energy, due to trigonal warping. We show that the predicted band structure …
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Essays in political economy
… affects the evolution of beliefs about their effects, giving rise to a feedback between preferences and policy choices. Using city-level data on law enforcement and crime, it estimates a structural model where crime outcomes are the result of Prohibition enforcement, and lead to changes in …
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Three Essays on Dynamic Corporate Finance in Continuous Time
… more expensive as debt holders foresee a ratchet up in future debt, raising the entry barriers and hindering new entries into the market. This results in lower product market competition, lower total output and higher output prices. The absence of debt policy commitment reshapes the …