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 9 of 9 for “"Boltzmann theory"”.
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Beyond Poisson-Boltzmann : strong correlations and extreme confinement in ionic fluids
… in physics for over a century since the "Poisson-Boltzmann" theory was first introduced. In this thesis, we study the bulk properties of ionic fluids in two important cases where the "Poisson-Boltzmann" theory fails: extreme confinement and strong ion-ion interactions. We first ask how ions behave …
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HYDRODYNAMIC AND BALLISTIC TRANSPORT IN ULTRA-CLEAN 2D ELECTRON SYSTEMS
… study transport in the more general framework of Boltzmann theory. Specifically, we look at effect of e-e interactions on tunnelling in p-n junctions and on photoresponse of a point contact in graphene.
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Theoretical Investigations of the Structural, Dynamical, Electronic, Magnetic, and Thermoelectric Properties of CoRhYSi (Y = Cr, Mn) Quaternary Heusler Alloys
… for these compounds. The semi-classical Boltzmann theory was used to compute the Seebeck coefficient (S), electrical conductivity (σ), and electronic thermal conductivity (k_e) of CoRhYSi (Y = Cr, Mn) alloys, whereas Slack's equation was used to get the lattice thermal conductivity …
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THEORETICAL PREDICTIONS OF POTENTIALS FOR INTERMEDIATE STEPS IN METHANOL AND ETHANOL ELECTROCHEMICAL OXIDATION ON Pt(111)
… were investigated using quantum mechanics theory. The reversible potential for each electron-transfer step and the reaction energy for non-electron transfer steps were calculated in bulk solution using Interface 1.0. This density functional theory (DFT) code uses modified Poisson-Boltzmann …
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Surfactant Adsorption during Collisions of Colloidal Particles: A Study with Atomic Force Microscopy (AFM)
… surfaces. In addition, self-consistent field theory (SCF) is used to calculate the adsorption profiles and interaction energies when two solid surfaces are brought into close proximity. Addition of surfactant is shown to affect the surface forces when lateral surfactant chain interactions are …
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Microscopic dynamical studies of the effects of the nuclear equation of state in intermediate-energy heavy-ion collisions
… We also study the accuracy of Vlasov-Nordheim theory in the classical limit (i.e., Vlasov- Boltzmann) by comparing its predictions with the exact results of a classical model of heavy-ion collisions. It is shown that, although the Vlasov-Boltzmann theory can reproduce the general trends, it …
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"“Phonon"" and electron transport in glass-crystal dual materials"
… relations. However, while band theory and phenomenological random-walk models are available in the crystalline and amorphous limits respectively, the picture for energy and charge transport in hybrid ordered-disordered materials is still incomplete. This is especially true when …
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Selective transport properties in nanostructured materials
… methods - molecular dynamics, density functional theory, semi-classical Boltzmann theory and Monte Carlo simulations. We first investigate the thermal and electrical transport properties of rippled graphene structures. Here we focus on the rippled textures formed by topological defects of …
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Understanding and designing carbon-based thermoelectric materials with atomic-scale simulations
… (EMD), lattice dynamics (LD), density functional theory (DFT), and the semi-classical Boltzmann theory. We first investigated thermal transport in graphene with atomic-scale classical simulations, which has been shown that the use of two-dimensional (2D) periodic patterns on graphene substantially …