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 509 for “"Phase Transitions"”.
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Dimensional phase transitions
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1984.
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Phase transitions in superionic PbSnF₄
… ion conductor known to date. We have studied the phase transitions it undergoes under three different conditions: (i) versus the amount of hydrofluoric acid used for the preparation by the aqueous route, (ii) upon application of mechanical energy, and (iii) versus temperature. The addition of an …
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Quantum chaos and phase transitions
… quantum mechanical properties, like topological phases and superconductivity, at macroscopic scales. The principles governing quantum materials include entanglement and coherence -phenomena which are fundamentally quantum mechanical in nature, without classical counterparts. The semiconductors in …
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Phase transitions in neural networks
… less complex, shorter cycles; the aforementioned transitions appear to be consistently rapid, compared to the cycle length, unless architecture is imposed such that nearly independent groups of neurons exist in the same net.
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Phase Transitions of Multivalent Adaptor Proteins
… proteins that causes these complexes to phase separate in solution. The behavior of multivalent proteins and their ligands to phase separate may be a general property that allows cells to regulate their activities in certain localized compartments. To study this larger goal, I used a …
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Quantum phase transitions in disordered magnets
… the effects of quenched weak disorder on quantum phase transitions in disordered magnets. The presence of disorder in the system can lead to a variety of exotic phenomena, e.g., the smearing of transitions or quantum Griffiths singularities. Phase transitions are smeared if individual spatial …
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Ac Thermal Measurements Near Phase-Transitions
Made available in DSpace on 2015-05-12T22:38:51Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7309940.PDF: 3672023 bytes, checksum: c32abd0ab310a7904f08095721c8abf4 (MD5) Previous issue date: 1972
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Phase transitions in lattice gauge theories
… U(l) lattice Higgs model are reviewed. The phases of the system are discussed in terms of these excitations and the results of Monte Carlo studies summarized. New results are then presented clarifying the role of topological excitations in the non-compact lattice version of the Abelian Higgs …
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AC Thermal Measurements Near Phase Transitions
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2011-07-08T18:14:50Z No. of bitstreams: 1 1972_garnier.pdf: 4257171 bytes, checksum: 4b63a34ea150f7ea88de6ffdae5760e5 (MD5)
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Unprovability and phase transitions in Ramsey theory
… the threshold functions for the related phase transitions. Chapter 1 sketches out the historical development of unprovability and phase transitions, and offers a little information on Ramsey theory. In addition, it introduces the necessary mathematical background by giving definitions and …
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The Effect of Pressure on Phase Transitions
Made available in DSpace on 2014-12-05T17:15:33Z (GMT). No. of bitstreams: 1 6004019.pdf: 2159370 bytes, checksum: 3cf6274bf410b369ed9ee3ba8cff7e06 (MD5) Previous issue date: 1960
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Phase transitions in fluids and biological systems
… I consider generic and statistical models for transitions between these global states, and I relate the model results with experimental data. A theme of this thesis is that these rather simple, minimal models are able to capture a lot of functional detail about complex dynamical systems. In …
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Phase transitions and avalanches in synchronizing systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms
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Fitting Interatomic Potentials to Reproduce Phase Transitions
… the full experimentally known solid and liquid phase diagram. There have been limited trials of fitting the parameters of interatomic potentials to phase transitions. In this work, I present improvements upon two already existing potentials from the literature – a CuAu potential and a Ti …
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Smectic phase transitions in chrial liquid crystals
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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Phase transitions in polyampholytic polymers and hydrogels
Thesis (Ph. D.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1996.
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Spin liquids, exotic phases and phase transitions
… yet there are many types of them, meaning a phase transition is necessary from one spin liquid to another. It was a long debate about whether these exotic states can serve as the ground states in real materials or even models. In this thesis I firstly discuss a large-N model, where we show …
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Phase transitions in thin iron-palladium films
Sputtered thin films have the capability of producing a very random distribution of alloying elements within a host element. This study demonstrates the ability of the SQUID (Superconducting Quantum Undulating Interference Device) to measure the Curie temperature of thin films of Pd(1-x)Fe(x). The …
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