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.
Results
Showing 1 to 20 of 21 for “"energy theory"”.
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Rotation-electronic interaction in the 3p-complex Rydberg state of water
An energy theory is formulated for the rotational energy levels in a p-complex Rydberg state of an asymmetric top molecule of symmetry C2v. The effective Hamiltonian used consists of the usual rigid rotor Hamiltonian augmented with terms representing electronic spin and orbital angular momentum …
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Beyond particles and localities in quantum matters
… differently from those obeying the standard theory of metals. Explaining such anomalous properties may require one to consider a non-traditional model. In this dissertation, we construct several phenomenological models based on the notions of unparticles and nonlocalities to explain some of …
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Aspects of symmetry, topology and anomalies in quantum matter
… new insights and solutions for condensed matter theory sometimes come from the developed and developing knowledge of high energy theory, mathematical and particle physics, which is also true the other way around: Condensed matter physics has been providing crucial hints and playgrounds for the …
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Experimental consequences of mottness in high-temperature copper-oxide superconductors
… a discussion on Cluster Dynamical Mean Field Theory (CDMFT), the principal numerical technique to be implemented in this dissertation. Chapter 3 describes the exact low-energy theory of doped Mott insulators, which largely provides a theoretical framework to this dissertation. In Chapter 4, we …
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The Effective Field Theory Approach to Fluid Dynamics, Modified Gravity Theories, and Cosmology
The effective field theory approach is powerful in understanding the low energy phenomena without invoking the UV degrees of freedom. We construct a low energy Lagrangian for ordinary fluid systems (in constrast to superfluid), pure from symmetry considerations and EFT principles. The dynamical …
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Subdimensional particles and higher rank quantum phases of matter
… are well-described in the language of gauge theory. Until recently, most theoretical attention has been focused on systems described by familiar vector gauge theories. In this thesis, we will explore the properties of quantum phases described by higher rank tensor gauge theories. In …
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Generalized contact processes in ecology
… richness. However, as per the results of species-energy theory, they tend to obey a monotonically increasing relationship at large scales. We use a multi-species neutral contact process coupled to a heterogeneous resource landscape to explain the scale-dependent transition. We find that the …
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The fractional quantum Hall regime in graphene
In the first part of this work, we describe a theory of the ground states and charge gaps in the fractional quantum Hall states of graphene. The theory relies on knowledge of these properties for filling fractions smaller than one. Then, by the application of two mapping rules, one is able to …
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Exploring wellbore and reservoir temperature profiles in fluid circulation and production operations
… first type depends on the conservation of heat energy theory for both steady and unsteady satiations. And the second model type depend on the analogy between the pressure and temperature diffusivity equations.</p><p>In this study, and in addition to the old boundary conditions that used to solve …
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Empirical Data Mining: Conservation of Nursing Energy and Care Capacity in Medical-Surgical Hospital Work Environments
… DATA MINING: CONSERVATION OF NURSING ENERGY AND CARE CAPACITY IN MEDICAL-SURGICAL HOSPITAL WORK ENVIRONMENTS</p> <p>Nurses are a critical component of the hospital care delivery system and provide essential observation and surveillance of inpatients. Mounting evidence describes an …
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Effects of menstrual cycle phases and dietary behavior on threshold and preference for sucrose
… and other discomfort); metabolic need for energy (hunger, and fatigue); and stress. The results indicated that threshold did not vary due to MC phase (p = 0.9118), dietary behavior (p = 0.4037), or the interaction of these two variables (p = 0.2940). Preference for sucrose fluctuated as a …
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Geometry and Topology of Quantum States in Quasicrystalline Systems
… how geometrical and topological ideas from band theory can be extended to quasicrystalline systems. We start by studying a model of a shallow quasicrystalline optical lattice. Here we show that due to a natural hierarchy in the spectrum, an external force can be chosen such that the resulting …
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Geometry and topological phase of matter
… phase transitions of Quantum states. The low-energy theory of the nematic field has z=2 dynamics due to a Berry phase of the order parameter, which is related to the Hall viscosity in parity and time-reversal-symmetry (TRS) broken states. The vortex of the nematic field, which is physically a …
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Branes, graphs and singularities
… this thesis, we study various aspects of string theory on geometric and nongeometric backgrounds in the presence of branes. In the first part of the thesis, we study non-compact geometries. We introduce "brane tilings" which efficiently encode the gauge group, matter content and superpotential of …
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Slave particle study of the strongly correlated electrons
… developed by Russian physicist Lev Landau: his theory of phase transition, and Fermi liquids. The Landau theory of phase transition and the Fermi liquid theory together, can successfully explain a wide range of phenomena from ferromagnetism and antiferromagnetism to the conventional …
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Divergent Criticality – A Mechanism of Neural Function for Perception and Learning
… literature in the fields of Phenomenology, Free Energy and Neuroscience, this thesis considers perception and learning as synonymous with the cognitive constructs of an ‘attention’ tuned for learning optimisation, and explores the processes of learning in neural function. It addresses the …
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Atomistic Characterization and Modeling of the Deformation and Failure Properties of Asphalt-Aggregate Interface
… specific asphalt-aggregate interfaces. Surface energy theory and pull-out simulation are used to compute the adhesive bond strength between the aggregates and asphalt, as well as the cohesive bond strength within the binder. In general, this dissertation has focused on the development of …
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Mean-Field Free-Energy Lattice Boltzmann Method for Liquid-Vapor Interfacial Flows
… interfacial flows using mean-field free-energy theory. This new pressure equation is shown to be the general form of the classical van der Waals" square-gradient theory. The new equation is implemented in two-dimensional (2D) D2Q7, D2Q9, and three-dimensional (3D) D3Q19 lattice Boltzmann …
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Experimental investigation of damage evolution during strain burst in brittle rocks for deep mines
… the sudden and violent release of stored strain energy during dynamic brittle failure of rocks, has become more prevalent and created considerable safety risks damaging underground infrastructures. This research focuses on the development of experimental methodologies to better understand the …
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A Comparative Study of the Perceptions of Elementary School Administrators, Teachers, and Students Regarding recess and Free Play in the Public School.
<p>According to recent studies, the number of schools that have severely limited or eliminated recess and free-play opportunities is on the rise across the nation. School officials cite the increasing levels of state and federal pressure to perform on standardized tests as the primary reason for …
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