subject:(Computational physics)

Cornell University

1. HAYDEN, LORIEN Xanthe. Dealings with Data Physics, Machine Learning and Geometry.

Degree: PhD, Physics, 2019, Cornell University

► Collecting and interpreting data is key to developing an understanding of the physical underpinnings of observable events. As such, questions of how to generate, curate… (more)

Subjects/Keywords: Computational physics

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APA (6^th Edition):

HAYDEN, L. X. (2019). Dealings with Data Physics, Machine Learning and Geometry. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/67530

Chicago Manual of Style (16^th Edition):

HAYDEN, LORIEN Xanthe. “Dealings with Data Physics, Machine Learning and Geometry.” 2019. Doctoral Dissertation, Cornell University. Accessed March 06, 2021. http://hdl.handle.net/1813/67530.

MLA Handbook (7^th Edition):

HAYDEN, LORIEN Xanthe. “Dealings with Data Physics, Machine Learning and Geometry.” 2019. Web. 06 Mar 2021.

Vancouver:

HAYDEN LX. Dealings with Data Physics, Machine Learning and Geometry. [Internet] [Doctoral dissertation]. Cornell University; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/1813/67530.

Council of Science Editors:

HAYDEN LX. Dealings with Data Physics, Machine Learning and Geometry. [Doctoral Dissertation]. Cornell University; 2019. Available from: http://hdl.handle.net/1813/67530

Boston University

2. Arai, Erin. Modeling surface tension dominated interfacial dynamics using smoothed particle hydrodynamics.

Degree: PhD, Mechanical Engineering, 2019, Boston University

URL: http://hdl.handle.net/2144/36151

► This work describes the development of a numerical model to simulate multiphase flows with surface tension dominated interfacial dynamics. Multiphase flows are ubiquitous in nature… (more)

▼ This work describes the development of a numerical model to simulate multiphase flows with surface tension dominated interfacial dynamics. Multiphase flows are ubiquitous in nature and throughout mechanical systems and the interfacial dynamics within these flows can significantly impact overall system characteristics. Given the limited number of analytic solutions and the potential expense and constraints of experimental work, numerical simulations can provide tools to aid in the fundamental understanding and optimization of such systems. Multiphase flows, especially those with large parameter gradients and geometric deformations, pose a number of unique numerical challenges that require careful consideration of numerical stability, flexibility and efficiency. Many multiphase flow models have difficulty representing large parameter gradients and geometric deformations simultaneously. They also frequently distinguish fluid and gas phases by evolving a volume fraction, but do not have the capability of solving different governing equations in each phase. This work uses smoothed particle hydrodynamics (SPH), a Lagrangian particle based method uniquely capable of accommodating large geometric deformations and arbitrary numbers of fluids, to model transient surface tension dominated dynamics of droplets and bubbles under a variety of circumstances. Existing implementations of multiphase SPH are plagued by technical challenges that are addressed here in order to develop a more robust formulation for physically realistic parameters that can be applied to a broad range of multiphase systems. The simulation of droplets and bubbles, which are inherently dynamic, multiphase and characterized by an interface, is first considered in the context of fundamental droplet and bubble behavior. The deformations of isolated droplets and bubbles under body forces and surface tension are modeled and the results verified and validated. Then the acquired numerical insight is applied to more complicated systems, including drop-drop collisions and bubble deformations in constrained environments. Two fundamentally different surface tension formulations are studied and observations regarding their optimal usage are made. Advisors/Committee Members: Ryan, Emily (advisor).

Subjects/Keywords: Computational physics

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APA (6^th Edition):

Arai, E. (2019). Modeling surface tension dominated interfacial dynamics using smoothed particle hydrodynamics. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/36151

Chicago Manual of Style (16^th Edition):

Arai, Erin. “Modeling surface tension dominated interfacial dynamics using smoothed particle hydrodynamics.” 2019. Doctoral Dissertation, Boston University. Accessed March 06, 2021. http://hdl.handle.net/2144/36151.

MLA Handbook (7^th Edition):

Arai, Erin. “Modeling surface tension dominated interfacial dynamics using smoothed particle hydrodynamics.” 2019. Web. 06 Mar 2021.

Vancouver:

Arai E. Modeling surface tension dominated interfacial dynamics using smoothed particle hydrodynamics. [Internet] [Doctoral dissertation]. Boston University; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/2144/36151.

Council of Science Editors:

Arai E. Modeling surface tension dominated interfacial dynamics using smoothed particle hydrodynamics. [Doctoral Dissertation]. Boston University; 2019. Available from: http://hdl.handle.net/2144/36151

Duke University

3. LIU, CHI. Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches .

Degree: 2019, Duke University

URL: http://hdl.handle.net/10161/19837

► Three-dimensional (3D) Hybrid Organic-Inorganic Perovskites (HOIPs) have been investigated intensively for application in photovoltaics in the last decade due to their extraordinary properties, including… (more)

▼ Three-dimensional (3D) Hybrid Organic-Inorganic Perovskites (HOIPs) have been investigated intensively for application in photovoltaics in the last decade due to their extraordinary properties, including ease of fabrication, suitable band gap, large absorption, high charge carrier mobility, etc. However, the structure and properties of their two-dimensional (2D) counterparts, especially those with complex organic components, are not understood as deeply as the 3D HOIPs. Due to the easing of spatial constraints for the organic cations, 2D HOIPs potentially have more structural flexibility and thus higher tunability of their electronic properties compared to the 3D HOIPs. Motivated by a desire to demonstrate such flexibility and tunability, a series of 2D HOIPs with oligothiophene derivative as the organic cations and lead halide is investigated in the first part of this work. Initial computational models with variable organic and inorganic components are constructed from the experimental structure of 5,5''-bis(aminoethyl)-2,2':5',2''':5'',2'''-quaterthiophene lead bromide (AE4T\ch{PbBr4}). it{Ab initio} first-principles calculations are performed for these materials employing density functional theory with corrections for van der Waals interactions and spin-orbit coupling. The set of 2D HOIPs investigated is found to be understandable within a quantum-well-like model with distinctive localization and nature of the electron and hole carriers. The band alignment types of the inorganic and organic component can be varied by rational variation of the inorganic or organic component. With the computational protocol shown to work for the above series of oligothiophene-based lead halides, a more extensive family of the oligothiophene-based 2D HOIPs is then investigated to demonstrate their structural and electronic tunability. For AE2T\ch{PbI4}, the disorder of the organic cations are investigated systematically in synergy between theoretical techniques and experimental reference data provided by a collaborating group. A staggered arrangement of AE2T cations is revealed to be the most stable packing pattern with the correct band alignment types, in agreement with experiment results from optical spectroscopy. Another representative class of 2D HOIPs based on oligoacene derivatives is investigated to show structural and electronic tunability similar with their oligothiophene based counterparts. In the final part of the thesis, an all-electron implementation of Bethe-Salpeter equation (BSE) approach based on the GW approximation is developed using numeric atom centered orbital basis sets, with the aim of developing first steps to a formal many-body theory treatment of neutral excitations, which goes beyond the independent-particle picture of density functional theory. Benchmarks of this implementation are performed for the low-lying excitation energies of a popular molecular benchmark set (``Thiel's" set) using results obtained using the Gaussian-orbital based MolGW code as reference values. The agreement between the… Advisors/Committee Members: Blum, Volker (advisor), Charbonneau, Patrick (advisor).

Subjects/Keywords: Chemistry; Computational chemistry; Computational physics

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APA (6^th Edition):

LIU, C. (2019). Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches . (Thesis). Duke University. Retrieved from http://hdl.handle.net/10161/19837

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

LIU, CHI. “Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches .” 2019. Thesis, Duke University. Accessed March 06, 2021. http://hdl.handle.net/10161/19837.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

LIU, CHI. “Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches .” 2019. Web. 06 Mar 2021.

Vancouver:

LIU C. Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches . [Internet] [Thesis]. Duke University; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10161/19837.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

LIU C. Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches . [Thesis]. Duke University; 2019. Available from: http://hdl.handle.net/10161/19837

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Tsai, Carol Leanne. Heuristic Algorithms for Agnostically Identifying the Globally Stable and Competitive Metastable Morphologies of Block Copolymer Melts.

Degree: 2019, University of California, Santa Barbara

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=13423067

► Block copolymers are composed of chemically distinct polymer chains that can be covalently linked in a variety of sequences and architectures. They are ubiquitous… (more)

▼ Block copolymers are composed of chemically distinct polymer chains that can be covalently linked in a variety of sequences and architectures. They are ubiquitous as ingredients of consumer products and also have applications in advanced plastics, drug delivery, advanced membranes, and next generation nano-lithographic patterning. The wide spectrum of possible block copolymer applications is a consequence of block copolymer self-assembly into periodic, meso-scale morphologies as a function of varying block composition and architecture in both melt and solution states, and the broad spectrum of physical properties that such mesophases afford. Materials exploration and discovery has traditionally been pursued through an iterative process between experimental and theoretical/computational collaborations. This process is often implemented in a trial-and-error fashion, and from the computational perspective of generating phase diagrams, usually requires some existing knowledge about the competitive phases for a given system. Self-Consistent Field Theory (SCFT) simulations have proven to be both qualitatively and quantitatively accurate in the determination, or forward mapping, of block copolymer phases of a given system. However, it is possible to miss candidates. This is because SCFT simulations are highly dependent on their initial configurations, and the ability to map phase diagrams requires a priori knowledge of what the competing candidate morphologies are. The unguided search for the stable phase of a block copolymer of a given composition and architecture is a problem of global optimization. SCFT by itself is a local optimization method, so we can combine it with population-based heuristic algorithms geared at global optimization to facilitate forward mapping. In this dissertation, we discuss the development of two such methods: Genetic Algorithm + SCFT (GA-SCFT) and Particle Swarm Optimization + SCFT (PSO-SCFT). Both methods allow a population of configurations to explore the space associated with the numerous states accessible to a block copolymer of a given composition and architecture. GA-SCFT is a real-space method in which a population of SCFT field configurations “evolves” over time. This is achieved by initializing the population randomly, allowing the configurations to relax to local basins of attraction using SCFT simulations, then selecting fit members (lower free energy structures) to recombine their fields and undergo mutations to generate a new “generation” of structures that iterate through this process. We present results from benchmark testing of this GA-SCFT technique on the canonical AB diblock copolymer melt, for which the theoretical phase diagram has long been established. The GA-SCFT algorithm successfully predicts many of the conventional mesophases from random initial conditions in large, 3-dimensional simulation cells, including hexagonally-packed cylinders, BCC-packed spheres, and lamellae, over a broad composition range and weak to…

Subjects/Keywords: Computational physics; Computational chemistry

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APA (6^th Edition):

Tsai, C. L. (2019). Heuristic Algorithms for Agnostically Identifying the Globally Stable and Competitive Metastable Morphologies of Block Copolymer Melts. (Thesis). University of California, Santa Barbara. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=13423067

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tsai, Carol Leanne. “Heuristic Algorithms for Agnostically Identifying the Globally Stable and Competitive Metastable Morphologies of Block Copolymer Melts.” 2019. Thesis, University of California, Santa Barbara. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=13423067.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tsai, Carol Leanne. “Heuristic Algorithms for Agnostically Identifying the Globally Stable and Competitive Metastable Morphologies of Block Copolymer Melts.” 2019. Web. 06 Mar 2021.

Vancouver:

Tsai CL. Heuristic Algorithms for Agnostically Identifying the Globally Stable and Competitive Metastable Morphologies of Block Copolymer Melts. [Internet] [Thesis]. University of California, Santa Barbara; 2019. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=13423067.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tsai CL. Heuristic Algorithms for Agnostically Identifying the Globally Stable and Competitive Metastable Morphologies of Block Copolymer Melts. [Thesis]. University of California, Santa Barbara; 2019. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=13423067

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

5. Stirewalt, Heather R. Computation as a Model Building Tool in a High School Physics Classroom.

Degree: 2018, California State University, Long Beach

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10785706

► The Next Generation Science Standards (NGSS) have established computational thinking as one of the science and engineering practices that should be developed in high… (more)

Subjects/Keywords: Computational physics; Education; Physics

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APA (6^th Edition):

Stirewalt, H. R. (2018). Computation as a Model Building Tool in a High School Physics Classroom. (Thesis). California State University, Long Beach. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10785706

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Stirewalt, Heather R. “Computation as a Model Building Tool in a High School Physics Classroom.” 2018. Thesis, California State University, Long Beach. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10785706.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Stirewalt, Heather R. “Computation as a Model Building Tool in a High School Physics Classroom.” 2018. Web. 06 Mar 2021.

Vancouver:

Stirewalt HR. Computation as a Model Building Tool in a High School Physics Classroom. [Internet] [Thesis]. California State University, Long Beach; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10785706.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Stirewalt HR. Computation as a Model Building Tool in a High School Physics Classroom. [Thesis]. California State University, Long Beach; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10785706

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Florida State University

6. Clarke, David A. Scale Setting and Topological Observables in Pure SU(2) LGT.

Degree: 2019, The Florida State University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10935396

► In this dissertation, we investigate the approach of pure SU(2) lattice gauge theory to its continuum limit using the deconfinement temperature, six gradient scales,… (more)

Subjects/Keywords: Computational physics; Statistical physics; Physics; Theoretical physics

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APA (6^th Edition):

Clarke, D. A. (2019). Scale Setting and Topological Observables in Pure SU(2) LGT. (Thesis). The Florida State University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10935396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Clarke, David A. “Scale Setting and Topological Observables in Pure SU(2) LGT.” 2019. Thesis, The Florida State University. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10935396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Clarke, David A. “Scale Setting and Topological Observables in Pure SU(2) LGT.” 2019. Web. 06 Mar 2021.

Vancouver:

Clarke DA. Scale Setting and Topological Observables in Pure SU(2) LGT. [Internet] [Thesis]. The Florida State University; 2019. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10935396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Clarke DA. Scale Setting and Topological Observables in Pure SU(2) LGT. [Thesis]. The Florida State University; 2019. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10935396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Oxford

7. Randisi, Ferdinando. Theory and simulation of twisted DNA duplexes.

Degree: PhD, 2019, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:1b8cf9be-8034-4aed-b488-35e7a3c7c97f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780718

► We use basic statistical mechanics and computer simulations with coarse-grained models to investigate the response of (inhomogeneous) DNA duplexes to linear and torsional mechanical stress.… (more)

▼ We use basic statistical mechanics and computer simulations with coarse-grained models to investigate the response of (inhomogeneous) DNA duplexes to linear and torsional mechanical stress. While the response of homogeneous DNA to more modest external stresses has been studied in detail, much less is know about DNA response to very strong over or under twisting, or about the biologically relevant case of inhomogeneous DNA under external torsion. By simulating geometries that resemble single-molecule molecular tweezers experiments previously reported in the literature, we validate our basic models, and measure the end-to-end duplex extension, torque, and the denaturation states of individual base-pairs, as well as the position of plectonemes when present in the post-buckling state. We generalise previous observations that plectonemes are preferentially localised (i.e. pinned) on sequence mismatches to predict that any sequence that is either significantly more bent or more flexible than the rest of the duplex should present a similar effect. We develop a simple theory to quantify this preference and test it in simulations, observing a semi-quantitative agreement. We also propose a general protocol to extend the popular oxDNA coarse-grained model of DNA to treat such bent/flexible sequences, and apply it to model thymine dimers, the most common DNA photoproducts. The theory provides almost quantitative agreement with simulations; in particular, the prediction that the pinning is dependent only on the bending angle and flexibility of the sequence, but not on the detail of how these are generated, is confirmed. Some consequences of the presence of a thymine dimer in biological DNA are also proposed. Finally, we use oxDNA to investigate the boundaries between the pre-buckling, post-buckling, and torsionally melted states, as well as the features of torsionally-melted underwound and overwound DNA, respectively called L-DNA and P-DNA. Unexpectedly, we observe that both torsionally-melted forms preferentially relax writhe by forming solenoids, rather than plectonemes. We compare our results with previous experimental and theoretical work and propose some experiments to confirm or deny this peculiar feature.

Subjects/Keywords: Computational physics; Biochemistry; Computational chemistry; Molecular biology

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APA (6^th Edition):

Randisi, F. (2019). Theory and simulation of twisted DNA duplexes. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:1b8cf9be-8034-4aed-b488-35e7a3c7c97f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780718

Chicago Manual of Style (16^th Edition):

Randisi, Ferdinando. “Theory and simulation of twisted DNA duplexes.” 2019. Doctoral Dissertation, University of Oxford. Accessed March 06, 2021. http://ora.ox.ac.uk/objects/uuid:1b8cf9be-8034-4aed-b488-35e7a3c7c97f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780718.

MLA Handbook (7^th Edition):

Randisi, Ferdinando. “Theory and simulation of twisted DNA duplexes.” 2019. Web. 06 Mar 2021.

Vancouver:

Randisi F. Theory and simulation of twisted DNA duplexes. [Internet] [Doctoral dissertation]. University of Oxford; 2019. [cited 2021 Mar 06]. Available from: http://ora.ox.ac.uk/objects/uuid:1b8cf9be-8034-4aed-b488-35e7a3c7c97f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780718.

Council of Science Editors:

Randisi F. Theory and simulation of twisted DNA duplexes. [Doctoral Dissertation]. University of Oxford; 2019. Available from: http://ora.ox.ac.uk/objects/uuid:1b8cf9be-8034-4aed-b488-35e7a3c7c97f ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.780718

University of California, San Diego

8. Kaardal, Joel Thomas. Decoding the Computations of Sensory Neurons.

Degree: 2018, University of California, San Diego

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10633582

► The nervous system encodes information about external stimuli through sophisticated computations performed by vast networks of sensory neurons. Since the space of all possible… (more)

Subjects/Keywords: Computational physics; Neurosciences; Biophysics

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APA (6^th Edition):

Kaardal, J. T. (2018). Decoding the Computations of Sensory Neurons. (Thesis). University of California, San Diego. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10633582

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kaardal, Joel Thomas. “Decoding the Computations of Sensory Neurons.” 2018. Thesis, University of California, San Diego. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10633582.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kaardal, Joel Thomas. “Decoding the Computations of Sensory Neurons.” 2018. Web. 06 Mar 2021.

Vancouver:

Kaardal JT. Decoding the Computations of Sensory Neurons. [Internet] [Thesis]. University of California, San Diego; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10633582.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kaardal JT. Decoding the Computations of Sensory Neurons. [Thesis]. University of California, San Diego; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10633582

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

9. Fedak, Adam. A Compact Fourth-Order Finite Volume Method for Structured Curvilinear Grids.

Degree: 2018, University of California, Davis

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10682563

► A fourth-order accurate finite volume method for curvilinear grids based on Hermitian interpolation and splines is here presented in one and two dimensions. The… (more)

Subjects/Keywords: Computational physics; Aerospace engineering

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APA (6^th Edition):

Fedak, A. (2018). A Compact Fourth-Order Finite Volume Method for Structured Curvilinear Grids. (Thesis). University of California, Davis. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10682563

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fedak, Adam. “A Compact Fourth-Order Finite Volume Method for Structured Curvilinear Grids.” 2018. Thesis, University of California, Davis. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10682563.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fedak, Adam. “A Compact Fourth-Order Finite Volume Method for Structured Curvilinear Grids.” 2018. Web. 06 Mar 2021.

Vancouver:

Fedak A. A Compact Fourth-Order Finite Volume Method for Structured Curvilinear Grids. [Internet] [Thesis]. University of California, Davis; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10682563.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fedak A. A Compact Fourth-Order Finite Volume Method for Structured Curvilinear Grids. [Thesis]. University of California, Davis; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10682563

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

10. Wang, Shaokang Jerry. Analysis of Stability and Noise in Passively Modelocked Comb Lasers.

Degree: 2018, University of Maryland, Baltimore County

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10840412

► The search for robust, low-noise modelocked comb sources has attracted significant attention during the last two decades. Passively modelocked fiber lasers are among the… (more)

▼ The search for robust, low-noise modelocked comb sources has attracted significant attention during the last two decades. Passively modelocked fiber lasers are among the most attractive comb sources. The most important design problems for a passively modelocked laser include: (1) finding a region in the laser’s adjustable parameter space where it operates stably, (2) optimizing the pulse profile within that region, and (3) lowering the noise level. Adjustable parameters will typically include the cavity length, the pump power, and the amplifier gain, which may be a function of the pump power, the pump wavelength, and both the material and geometry of the gain medium. There are two basic computational approaches for modeling passively modelocked laser systems: the evolutionary approach and the dynamical approach. In the evolutionary approach, which replicates the physical behavior of the laser, one launches light into the simulated laser and follows it for many round trips in the laser. If one obtains a stationary or periodically-stationary modelocked pulse, the laser is deemed stable and, if no such pulse is found, the laser is deemed unstable. The effect of noise can be studied by using a random number generator to add computational noise. In the dynamical approach, one first obtains a single modelocked pulse solution either analytically or by using the evolutionary approach. Next, one finds the pulse parameters as the laser parameters vary by solving a root-finding algorithm. One then linearizes the evolution equations about the steady-state solution and determines the eigenvalues of the linearized equation, which we refer to as the equation’s dynamical spectrum. If any eigenvalue has a positive real part, then the modelocked pulse is unstable. The effect of noise can be determined by calculating the noise that enters each of the modes in the dynamical spectrum, whose amplitudes are described by either a Langevin process or a random walk process. The evolutionary approach is intuitive and straightforward to program, and it is widely used. However, it is computationally time-consuming to determine the stable operating regions and can give ambiguous results near a stability boundary. When evaluating the noise levels, Monte Carlo simulations, which are based upon the evolutionary approach, are often prohibitively expensive computationally. By comparison, the dynamical approach is more difficult to program, but it is computationally rapid, yields unambiguous results for the stability, and avoids computationally expensive Monte Carlo simulations. The two approaches are complementary to each other. However, the dynamical approach can be a powerful tool for system design and optimization and has historically been undertilized. In this dissertation, we discuss the dynamical approach that we have developed for design and optimization of passively modelocked laser systems. This approach provides deep insights into the instability mechanisms of the laser that impact or limit…

Subjects/Keywords: Computational physics; Electrical engineering; Optics

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APA (6^th Edition):

Wang, S. J. (2018). Analysis of Stability and Noise in Passively Modelocked Comb Lasers. (Thesis). University of Maryland, Baltimore County. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10840412

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Shaokang Jerry. “Analysis of Stability and Noise in Passively Modelocked Comb Lasers.” 2018. Thesis, University of Maryland, Baltimore County. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10840412.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Shaokang Jerry. “Analysis of Stability and Noise in Passively Modelocked Comb Lasers.” 2018. Web. 06 Mar 2021.

Vancouver:

Wang SJ. Analysis of Stability and Noise in Passively Modelocked Comb Lasers. [Internet] [Thesis]. University of Maryland, Baltimore County; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10840412.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang SJ. Analysis of Stability and Noise in Passively Modelocked Comb Lasers. [Thesis]. University of Maryland, Baltimore County; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10840412

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

11. Nagai, Toshiki. Space-time Extended Finite Element Method with Applications to Fluid-structure Interaction Problems.

Degree: 2018, University of Colorado at Boulder

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10844711

► This thesis presents a space-time extended finite element method (space-time XFEM) based on the Heaviside enrichment for transient problems with moving interfaces, and its… (more)

▼ This thesis presents a space-time extended finite element method (space-time XFEM) based on the Heaviside enrichment for transient problems with moving interfaces, and its applications to the fluid-structure interaction (FSI) analysis. The Heaviside-enriched XFEM is a promising method to discretize partial differential equations with discontinuities in space. However, significant approximation errors are introduced by time stepping schemes when the interface geometry changes in time. The proposed space-time XFEM applies the finite element discretization and the Heaviside enrichment in both space and time with elements forming a space-time slab. A simple space-time scheme is introduced to integrate the weak form of the governing equations. This scheme considers spatial intersection configuration at multiple temporal integration points. Standard spatial integration techniques can be applied for each spatial configuration. Nitsche's method and the face-oriented ghost-penalty method are extended to the proposed space-time XFEM formulation. The stability, accuracy and flexibility of the space-time XFEM for various interface conditions including moving interfaces are demonstrated with structural and fluid problems. Moreover, the space-time XFEM enables analyzing complex FSI problems using moving interfaces, such as FSI with contact. Two FSI methods using moving interfaces (full-Eulerian FSI and Lagrangian-immersed FSI) are studied. The Lagrangian-immersed FSI method is a mixed formulation of Lagrangian and Eulerian descriptions. As solid and fluid meshes are independently defined, the FSI is computed between non-matching interfaces based on Nitsche's method and projection techniques adopted from computational contact mechanics. The stabilized Lagrange multiplier method is used for contact. Numerical examples of FSI and FSI-contact problems provide insight into the characteristics of the combination of the space-time XFEM and the Lagrangian-immersed FSI method. The proposed combination is a promising method which has the versatility for various multi-physics simulations and the applicability such as optimization.

Subjects/Keywords: Fluid mechanics; Computational physics

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APA (6^th Edition):

Nagai, T. (2018). Space-time Extended Finite Element Method with Applications to Fluid-structure Interaction Problems. (Thesis). University of Colorado at Boulder. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10844711

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nagai, Toshiki. “Space-time Extended Finite Element Method with Applications to Fluid-structure Interaction Problems.” 2018. Thesis, University of Colorado at Boulder. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10844711.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nagai, Toshiki. “Space-time Extended Finite Element Method with Applications to Fluid-structure Interaction Problems.” 2018. Web. 06 Mar 2021.

Vancouver:

Nagai T. Space-time Extended Finite Element Method with Applications to Fluid-structure Interaction Problems. [Internet] [Thesis]. University of Colorado at Boulder; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10844711.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nagai T. Space-time Extended Finite Element Method with Applications to Fluid-structure Interaction Problems. [Thesis]. University of Colorado at Boulder; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10844711

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

12. Giffin, Brian Doran. Partitioned Polytopal Finite-Element Methods for Nonlinear Solid Mechanics.

Degree: 2018, University of California, Davis

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10752138

► This work presents a novel polytopal finite-element framework that addresses the collective issues of discretization sensitivity and mesh generation for computational solid mechanics problems.… (more)

Subjects/Keywords: Computational physics; Mechanics; Applied mathematics

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APA (6^th Edition):

Giffin, B. D. (2018). Partitioned Polytopal Finite-Element Methods for Nonlinear Solid Mechanics. (Thesis). University of California, Davis. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10752138

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Giffin, Brian Doran. “Partitioned Polytopal Finite-Element Methods for Nonlinear Solid Mechanics.” 2018. Thesis, University of California, Davis. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10752138.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Giffin, Brian Doran. “Partitioned Polytopal Finite-Element Methods for Nonlinear Solid Mechanics.” 2018. Web. 06 Mar 2021.

Vancouver:

Giffin BD. Partitioned Polytopal Finite-Element Methods for Nonlinear Solid Mechanics. [Internet] [Thesis]. University of California, Davis; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10752138.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Giffin BD. Partitioned Polytopal Finite-Element Methods for Nonlinear Solid Mechanics. [Thesis]. University of California, Davis; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10752138

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado School of Mines

13. Wang, Cong. A Multi-Scale, Multi-Continuum and Multi-Physics Model to Simulate Coupled Fluid Flow and Geomechanics in Shale Gas Reservoirs.

Degree: 2018, Colorado School of Mines

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10684514

► In this study, several efficient and accurate mathematical models and numerical solutions to unconventional reservoir development problems are developed. The first is the three-dimensional… (more)

Subjects/Keywords: Computational physics; Engineering; Petroleum engineering

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APA (6^th Edition):

Wang, C. (2018). A Multi-Scale, Multi-Continuum and Multi-Physics Model to Simulate Coupled Fluid Flow and Geomechanics in Shale Gas Reservoirs. (Thesis). Colorado School of Mines. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10684514

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Cong. “A Multi-Scale, Multi-Continuum and Multi-Physics Model to Simulate Coupled Fluid Flow and Geomechanics in Shale Gas Reservoirs.” 2018. Thesis, Colorado School of Mines. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10684514.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Cong. “A Multi-Scale, Multi-Continuum and Multi-Physics Model to Simulate Coupled Fluid Flow and Geomechanics in Shale Gas Reservoirs.” 2018. Web. 06 Mar 2021.

Vancouver:

Wang C. A Multi-Scale, Multi-Continuum and Multi-Physics Model to Simulate Coupled Fluid Flow and Geomechanics in Shale Gas Reservoirs. [Internet] [Thesis]. Colorado School of Mines; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10684514.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang C. A Multi-Scale, Multi-Continuum and Multi-Physics Model to Simulate Coupled Fluid Flow and Geomechanics in Shale Gas Reservoirs. [Thesis]. Colorado School of Mines; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10684514

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Washington

14. He, Shushan. Using Molecular Dynamics Simulations and Statistical Modeling to Explore Membrane Structure and Membrane-Protein Interactions.

Degree: PhD, 2019, University of Washington

URL: http://hdl.handle.net/1773/43328

► The structure of cellular membranes gives rise to important biological phenomena, and understanding the (de)mixing behavior of multicomponent lipid bilayers is an important step toward… (more)

Subjects/Keywords:

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APA (6^th Edition):

He, S. (2019). Using Molecular Dynamics Simulations and Statistical Modeling to Explore Membrane Structure and Membrane-Protein Interactions. (Doctoral Dissertation). University of Washington. Retrieved from http://hdl.handle.net/1773/43328

Chicago Manual of Style (16^th Edition):

He, Shushan. “Using Molecular Dynamics Simulations and Statistical Modeling to Explore Membrane Structure and Membrane-Protein Interactions.” 2019. Doctoral Dissertation, University of Washington. Accessed March 06, 2021. http://hdl.handle.net/1773/43328.

MLA Handbook (7^th Edition):

He, Shushan. “Using Molecular Dynamics Simulations and Statistical Modeling to Explore Membrane Structure and Membrane-Protein Interactions.” 2019. Web. 06 Mar 2021.

Vancouver:

He S. Using Molecular Dynamics Simulations and Statistical Modeling to Explore Membrane Structure and Membrane-Protein Interactions. [Internet] [Doctoral dissertation]. University of Washington; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/1773/43328.

Council of Science Editors:

He S. Using Molecular Dynamics Simulations and Statistical Modeling to Explore Membrane Structure and Membrane-Protein Interactions. [Doctoral Dissertation]. University of Washington; 2019. Available from: http://hdl.handle.net/1773/43328

Georgia State University

15. Aiken, John M. Transforming High School Physics With Modeling And Computation.

Degree: MS, Physics and Astronomy, 2013, Georgia State University

URL: https://scholarworks.gsu.edu/phy_astr_theses/18

► The Engage to Excel (PCAST) report, the National Research Council's Framework for K-12 Science Education, and the Next Generation Science Standards all call for… (more)

Subjects/Keywords: Computational Modeling; Physics; Education

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APA (6^th Edition):

Aiken, J. M. (2013). Transforming High School Physics With Modeling And Computation. (Thesis). Georgia State University. Retrieved from https://scholarworks.gsu.edu/phy_astr_theses/18

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Aiken, John M. “Transforming High School Physics With Modeling And Computation.” 2013. Thesis, Georgia State University. Accessed March 06, 2021. https://scholarworks.gsu.edu/phy_astr_theses/18.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Aiken, John M. “Transforming High School Physics With Modeling And Computation.” 2013. Web. 06 Mar 2021.

Vancouver:

Aiken JM. Transforming High School Physics With Modeling And Computation. [Internet] [Thesis]. Georgia State University; 2013. [cited 2021 Mar 06]. Available from: https://scholarworks.gsu.edu/phy_astr_theses/18.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Aiken JM. Transforming High School Physics With Modeling And Computation. [Thesis]. Georgia State University; 2013. Available from: https://scholarworks.gsu.edu/phy_astr_theses/18

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

16. Stefferson, Michael W. Dynamics of Crowded and Active Biological Systems.

Degree: 2018, University of Colorado at Boulder

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10823834

► Interactions between particles and their environment can alter the dynamics of biological systems. In crowded media like the cell, interactions with obstacles can introduce… (more)

Subjects/Keywords: Computational physics; Condensed matter physics; Biophysics

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APA (6^th Edition):

Stefferson, M. W. (2018). Dynamics of Crowded and Active Biological Systems. (Thesis). University of Colorado at Boulder. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10823834

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Stefferson, Michael W. “Dynamics of Crowded and Active Biological Systems.” 2018. Thesis, University of Colorado at Boulder. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10823834.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Stefferson, Michael W. “Dynamics of Crowded and Active Biological Systems.” 2018. Web. 06 Mar 2021.

Vancouver:

Stefferson MW. Dynamics of Crowded and Active Biological Systems. [Internet] [Thesis]. University of Colorado at Boulder; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10823834.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Stefferson MW. Dynamics of Crowded and Active Biological Systems. [Thesis]. University of Colorado at Boulder; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10823834

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

17. Murray, Ryan. Tunnel Ionization in Strong Fields in atoms and molecules and its applications.

Degree: 2011, University of Waterloo

URL: http://hdl.handle.net/10012/5863

► We look at the theory of ionization of atoms and molecules in the presence of a strong laser field. The history of ionization of atoms… (more)

Subjects/Keywords: atomic physics; femtosecond; molecular physics; attosecond; computational

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APA (6^th Edition):

Murray, R. (2011). Tunnel Ionization in Strong Fields in atoms and molecules and its applications. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/5863

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Murray, Ryan. “Tunnel Ionization in Strong Fields in atoms and molecules and its applications.” 2011. Thesis, University of Waterloo. Accessed March 06, 2021. http://hdl.handle.net/10012/5863.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Murray, Ryan. “Tunnel Ionization in Strong Fields in atoms and molecules and its applications.” 2011. Web. 06 Mar 2021.

Vancouver:

Murray R. Tunnel Ionization in Strong Fields in atoms and molecules and its applications. [Internet] [Thesis]. University of Waterloo; 2011. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10012/5863.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Murray R. Tunnel Ionization in Strong Fields in atoms and molecules and its applications. [Thesis]. University of Waterloo; 2011. Available from: http://hdl.handle.net/10012/5863

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Berkeley

18. Yuen, Albert. Passive Focusing of Intense Ion Beams.

Degree: Nuclear Engineering, 2016, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/20v479dc

► The radial control of high current ion beams from induction accelerators or generated by short pulsed intense laser-plasma interactions is generally limited by Coulomb repulsion… (more)

Subjects/Keywords: Physics; Plasma physics; Nuclear engineering; Accelerator Physics; Beam Physics; Computational Physics; Plasma Physics

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APA (6^th Edition):

Yuen, A. (2016). Passive Focusing of Intense Ion Beams. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/20v479dc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yuen, Albert. “Passive Focusing of Intense Ion Beams.” 2016. Thesis, University of California – Berkeley. Accessed March 06, 2021. http://www.escholarship.org/uc/item/20v479dc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yuen, Albert. “Passive Focusing of Intense Ion Beams.” 2016. Web. 06 Mar 2021.

Vancouver:

Yuen A. Passive Focusing of Intense Ion Beams. [Internet] [Thesis]. University of California – Berkeley; 2016. [cited 2021 Mar 06]. Available from: http://www.escholarship.org/uc/item/20v479dc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yuen A. Passive Focusing of Intense Ion Beams. [Thesis]. University of California – Berkeley; 2016. Available from: http://www.escholarship.org/uc/item/20v479dc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Johannes Gutenberg Universität Mainz

19. Diaz Ochoa, Juan G. Theoretical investigation of the interaction of a polymer film with a nanoparticle.

Degree: 2005, Johannes Gutenberg Universität Mainz

URL: http://ubm.opus.hbz-nrw.de/volltexte/2005/856/

► The fundamental aim in our investigation of the interaction of a polymer film with a nanoparticle is the extraction of information on the dynamics of… (more)

▼ The fundamental aim in our investigation of the interaction of a polymer film with a nanoparticle is the extraction of information on the dynamics of the liquid using a single tracking particle. In this work two theoretical methods were used: one passive, where the motion of the particle measures the dynamics of the liquid, one active, where perturbations in the system are introduced through the particle. In the first part of this investigation a thin polymeric film on a substrate is studied using molecular dynamics simulations. The polymer is modeled via a 'bead spring' model. The particle is spheric and non structured and is able to interact with the monomers via a Lennard Jones potential. The system is micro-canonical and simulations were performed for average temperatures between the glass transition temperature of the film and its dewetting temperature. It is shown that the stability of the nanoparticle on the polymer film in the absence of gravity depends strongly on the form of the chosen interaction potential between nanoparticle and polymer. The relative position of the tracking particle to the liquid vapor interface of the polymer film shows the glass transition of the latter. The velocity correlation function and the mean square displacement of the particle has shown that it is caged when the temperature is close to the glass transition temperature. The analysis of the dynamics at long times shows the coupling of the nanoparticle to the center of mass of the polymer chains. The use of the Stokes-Einstein formula, which relates the diffusion coefficient to the viscosity, permits to use the nanoparticle as a probe for the determination of the bulk viscosity of the melt, the so called 'microrheology'. It is shown that for low frequencies the result obtained using microrheology coincides with the results of the Rouse model applied to the polymer dynamics. In the second part of this investigation the equations of Linear Hydrodynamics are solved for a nanoparticle oscillating above the film. It is shown that compressible liquids have mechanical response to external perturbations induced with the nanoparticle. These solutions show strong velocity and pressure profiles of the liquid near the interface, as well as a mechanical response of the liquid-vapor interface. The results obtained with this calculations can be employed for the interpretation of experimental results of non contact AFM microscopy

Subjects/Keywords: Stochastik, Brownsche Bewegung, Polymer Physik, Computational Physik, Hydrodynamik; Stochastics, Brownian Motion, Polymer Physics, Computational Physics, Hydrodynamics; Physics

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APA (6^th Edition):

Diaz Ochoa, J. G. (2005). Theoretical investigation of the interaction of a polymer film with a nanoparticle. (Doctoral Dissertation). Johannes Gutenberg Universität Mainz. Retrieved from http://ubm.opus.hbz-nrw.de/volltexte/2005/856/

Chicago Manual of Style (16^th Edition):

Diaz Ochoa, Juan G. “Theoretical investigation of the interaction of a polymer film with a nanoparticle.” 2005. Doctoral Dissertation, Johannes Gutenberg Universität Mainz. Accessed March 06, 2021. http://ubm.opus.hbz-nrw.de/volltexte/2005/856/.

MLA Handbook (7^th Edition):

Diaz Ochoa, Juan G. “Theoretical investigation of the interaction of a polymer film with a nanoparticle.” 2005. Web. 06 Mar 2021.

Vancouver:

Diaz Ochoa JG. Theoretical investigation of the interaction of a polymer film with a nanoparticle. [Internet] [Doctoral dissertation]. Johannes Gutenberg Universität Mainz; 2005. [cited 2021 Mar 06]. Available from: http://ubm.opus.hbz-nrw.de/volltexte/2005/856/.

Council of Science Editors:

Diaz Ochoa JG. Theoretical investigation of the interaction of a polymer film with a nanoparticle. [Doctoral Dissertation]. Johannes Gutenberg Universität Mainz; 2005. Available from: http://ubm.opus.hbz-nrw.de/volltexte/2005/856/

Northeastern University

20. Lane, Christopher. Modeling Electronic Structure And Spectroscopy Of Correlated Materials, 2d Thin Films And Their Heterostructures.

Degree: PhD, Department of Physics, 2019, Northeastern University

URL: http://hdl.handle.net/2047/D20321216

► This thesis presents work that has been done to address a variety of questions related to the electronic structure and spectroscopy of various novel materials,… (more)

Subjects/Keywords: Density Functional Theory; Many Body Physics; Materials Physics; Theoretical Condensed Matter Physics; Condensed matter physics; Computational physics; Computational chemistry

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APA (6^th Edition):

Lane, C. (2019). Modeling Electronic Structure And Spectroscopy Of Correlated Materials, 2d Thin Films And Their Heterostructures. (Doctoral Dissertation). Northeastern University. Retrieved from http://hdl.handle.net/2047/D20321216

Chicago Manual of Style (16^th Edition):

Lane, Christopher. “Modeling Electronic Structure And Spectroscopy Of Correlated Materials, 2d Thin Films And Their Heterostructures.” 2019. Doctoral Dissertation, Northeastern University. Accessed March 06, 2021. http://hdl.handle.net/2047/D20321216.

MLA Handbook (7^th Edition):

Lane, Christopher. “Modeling Electronic Structure And Spectroscopy Of Correlated Materials, 2d Thin Films And Their Heterostructures.” 2019. Web. 06 Mar 2021.

Vancouver:

Lane C. Modeling Electronic Structure And Spectroscopy Of Correlated Materials, 2d Thin Films And Their Heterostructures. [Internet] [Doctoral dissertation]. Northeastern University; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/2047/D20321216.

Council of Science Editors:

Lane C. Modeling Electronic Structure And Spectroscopy Of Correlated Materials, 2d Thin Films And Their Heterostructures. [Doctoral Dissertation]. Northeastern University; 2019. Available from: http://hdl.handle.net/2047/D20321216

Universiteit Utrecht

21. Rottier, O.G. One-loop corrections at future linear colliders.

Degree: 2014, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/297077

► In order to benefit from high precision measurements at a future Linear Collider, we need to go beyond the tree level for cross section calculations… (more)

Subjects/Keywords: High energy physics; Particle physics; Phenomenology; Computational physics; Higgs

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APA (6^th Edition):

Rottier, O. G. (2014). One-loop corrections at future linear colliders. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/297077

Chicago Manual of Style (16^th Edition):

Rottier, O G. “One-loop corrections at future linear colliders.” 2014. Masters Thesis, Universiteit Utrecht. Accessed March 06, 2021. http://dspace.library.uu.nl:8080/handle/1874/297077.

MLA Handbook (7^th Edition):

Rottier, O G. “One-loop corrections at future linear colliders.” 2014. Web. 06 Mar 2021.

Vancouver:

Rottier OG. One-loop corrections at future linear colliders. [Internet] [Masters thesis]. Universiteit Utrecht; 2014. [cited 2021 Mar 06]. Available from: http://dspace.library.uu.nl:8080/handle/1874/297077.

Council of Science Editors:

Rottier OG. One-loop corrections at future linear colliders. [Masters Thesis]. Universiteit Utrecht; 2014. Available from: http://dspace.library.uu.nl:8080/handle/1874/297077

22. Thompson, Amy V. Linked and Knotted Fields in Plasma and Gravity.

Degree: 2014, University of California – eScholarship, University of California

URL: http://www.escholarship.org/uc/item/6ds701tc

► Hopfions are a class of fields whose topology is derived from the Hopf fibration, with field lines that are linked circles which lie on a… (more)

▼ Hopfions are a class of fields whose topology is derived from the Hopf fibration, with field lines that are linked circles which lie on a set of space-filling nested toroidal surfaces. In this thesis, we use analytic and computational methods to study hopfions and their generalization to field configurations based on torus knots in both plasma and gravity.The Kamchatnov-Hopf solution to the magnetohydrodynamic (MHD) equations is a topological soliton, a field configuration that is stable due to a conserved topological quantity, with linking number one. By realizing that the angular momentum can also serve as a secondary stabilizing mechanism for certain field configurations, we generalize this solution to a class of topological solitons with linking number greater than one and show they are stable in ideal MHD. When studied in full resistive MHD, the results of simulations indicate that the non-zero linking number serves to inhibit the decay of the magnetic field energy.The vacuum Maxwell and linearized Einstein equations take a similar form when expressed as spin-N field equations, suggesting that electromagnetic and gravitational radiation possess analogous topologically non-trivial field configurations. The solutions to the massless spin-N equations can be found by complex contour integral transformations with generating functions in terms of twistor variables. Using these methods, we construct the null electromagnetic hopfion and the analogous Petrov Type N gravitational solution. The fields are decomposed into tendex and vortex lines, the analog of the electromagnetic field lines, to investigate their physical properties and characterize their topology. For both electromagnetism and gravity the topology manifests in the lines of force.We then show that the hopfion solutions are the simplest case in a class of Type N linked and knotted gravitational solutions based on torus knots. Reparameterizing the twistor generating functions in terms of the winding numbers of the field lines allows one to choose the degree of linking or knotting of the associated field configuration. Finally, we discuss how the singularity structure of the twistor generating functions determines the spinor classification of the fields in Minkowski space. Since the solutions are constructed by contour integral transformations, the poles of the generating functions are directly related to the geometry of the physical fields. By modifying the generating functions, we extend the construction of the Type N gravitational hopfion to find the analogous spin-2 solutions of different Petrov classifications and characterize their tendex and vortex line configurations.

Subjects/Keywords: Physics; computational physics; gravitational radiation; knotted fields; plasma physics; topological solitons

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Thompson, A. V. (2014). Linked and Knotted Fields in Plasma and Gravity. (Thesis). University of California – eScholarship, University of California. Retrieved from http://www.escholarship.org/uc/item/6ds701tc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Thompson, Amy V. “Linked and Knotted Fields in Plasma and Gravity.” 2014. Thesis, University of California – eScholarship, University of California. Accessed March 06, 2021. http://www.escholarship.org/uc/item/6ds701tc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Thompson, Amy V. “Linked and Knotted Fields in Plasma and Gravity.” 2014. Web. 06 Mar 2021.

Vancouver:

Thompson AV. Linked and Knotted Fields in Plasma and Gravity. [Internet] [Thesis]. University of California – eScholarship, University of California; 2014. [cited 2021 Mar 06]. Available from: http://www.escholarship.org/uc/item/6ds701tc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Thompson AV. Linked and Knotted Fields in Plasma and Gravity. [Thesis]. University of California – eScholarship, University of California; 2014. Available from: http://www.escholarship.org/uc/item/6ds701tc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Boston University

23. Tang, Ying. Quantum Monte Carlo studies of quantum criticality in low-dimensional spin systems.

Degree: PhD, Physics, 2014, Boston University

URL: http://hdl.handle.net/2144/14301

► Strongly correlated low-dimensional quantum spin models provide a well-established frame- work to study magnetic properties of insulators, and are of great theoretical interest and experimental… (more)

▼ Strongly correlated low-dimensional quantum spin models provide a well-established frame- work to study magnetic properties of insulators, and are of great theoretical interest and experimental relevance in condensed-matter physics. In this thesis, I use quantum Monte Carlo methods to numerically study quantum critical behavior in low-dimensional quantum spin models and wavefunctions. First, I study spinons &ndash emergent spin-1/2 bosonic excitations &ndash at certain one- and two-dimensional quantum phase transitions (QPTs) in spin models, by characterizing their size and confinement length quantitatively. In particular, I focus on the QPT from an antiferromagnetic (AFM) phase into a valence-bond solid (VBS) phase, which is an example of a violation of the standard Landau-Ginzburg-Wilson paradigm for phase transitions. This transition in two dimensions (2D) is instead likely described by a novel theory called "deconfined quantum criticality" (DQC). According to the theory, spinons should be deconfined. The degree of deconfinement is quantified in my calculations. Second, I present a comprehensive study of so-called short-bond resonating-valence-bond (RVB) spin liquids in 2D, which have been suggested as a good starting point for understanding the spin physics of high-temperature cuprates. I find that these RVB states can also be classified as quantum-critical VBS states, which indicates that RVB is less disordered than expected. This work suggests a possible mapping from the quantum RVB states to classical dimer models via a classical continuum field theory – the height model. This map explicitly bridges well-established classical results to future quantum studies. Third, I consider 1D amplitude product (AP) states, which are generalized versions of RVB states, with different wavefunction weightings of bonds according to their lengths. AP states constitute a good ansatz for certain Hamiltonians and are of broad interest in quantum magnetism. I study phase transitions from AFM-VBS phases in AP states by tuning their amplitudes, and obtain continuously varying critical exponents. In addition, I classify the 1D AP states through entanglement entropy calculations of the central charge in (1+1)D conformal field theory. This new classification could serve as guide for AP states as trial wavefunctions to search for ground states of corresponding quantum spin models.

Subjects/Keywords: Physics; Computational physics; Condensed matter theory; Quantum spin model; Statistical physics

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APA (6^th Edition):

Tang, Y. (2014). Quantum Monte Carlo studies of quantum criticality in low-dimensional spin systems. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/14301

Chicago Manual of Style (16^th Edition):

Tang, Ying. “Quantum Monte Carlo studies of quantum criticality in low-dimensional spin systems.” 2014. Doctoral Dissertation, Boston University. Accessed March 06, 2021. http://hdl.handle.net/2144/14301.

MLA Handbook (7^th Edition):

Tang, Ying. “Quantum Monte Carlo studies of quantum criticality in low-dimensional spin systems.” 2014. Web. 06 Mar 2021.

Vancouver:

Tang Y. Quantum Monte Carlo studies of quantum criticality in low-dimensional spin systems. [Internet] [Doctoral dissertation]. Boston University; 2014. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/2144/14301.

Council of Science Editors:

Tang Y. Quantum Monte Carlo studies of quantum criticality in low-dimensional spin systems. [Doctoral Dissertation]. Boston University; 2014. Available from: http://hdl.handle.net/2144/14301

University of Arizona

24. Khan, Souratosh. Theory of Transient Excited State Absorptions in Molecular Crystals and Dimers : Effects of Electron Correlations and their Role in Singlet Fission .

Degree: 2018, University of Arizona

URL: http://hdl.handle.net/10150/631402

► Singlet fission (SF), in which a photoexcted spin singlet exciton dissociates into a pair of low lying triplet excitons has the potential to overcome the… (more)

▼ Singlet fission (SF), in which a photoexcted spin singlet exciton dissociates into a pair of low lying triplet excitons has the potential to overcome the Shockley-Quessier limit of conventional solar cells. It is well understood that a key intermediate - the multiexcitonic, quantum entangled ¹(TT)₁ state plays a vital role in making the process spin-allowed. Early experiments based on transient absorption spectroscopy (TA) conducted on molecular crystals and dimers of organic molecules reported highly efficient SF. However, with the emergence of optical probes in the infra-red (IR) regime, the ``bound'' triplet pair state has been shown to be stable against decoherence thereby raising questions on SF itself. In this thesis, within a correlated electron model, we report calculations of excited state absorptions (ESAs) from the singlet and triplet excitons and from the triplet-triplet biexciton for pentacene crystal and dimers. We formulate a broad theory of quantum entanglement of triplet-triplet state in these molecular systems and show that spectroscopic differences in the ESA signals between free and bound triplets exist beyond the visible. The triplet exciton primarily absorbs in the visible and any near IR (NIR) absorption depends on the strength of the intermolecular coupling. In contrast, the ¹(TT)₁ state has additional weak ESA in the IR. In the dimers, we show that entanglement between triplets is a function of the proximity as well as the steric hindrance between the molecular chromophores. A weak signal from the singlet exciton is found in the IR and attributed to a transition to a different kind of triplet-triplet state. In summary, our theory of ESA can be extended to other weakly coupled bimolecular systems without any loss of generality. Advisors/Committee Members: Mazumdar, Sumitendra (advisor), Stafford, Charles A. (committeemember), Monti Masel, Oliver L A (committeemember), Hassan, Mohammed (committeemember), Schaibley, John R. (committeemember).

Subjects/Keywords: Chemical Physics; Computational Physics; Condensed Matter Physics; Organic Photovoltaics

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APA (6^th Edition):

Khan, S. (2018). Theory of Transient Excited State Absorptions in Molecular Crystals and Dimers : Effects of Electron Correlations and their Role in Singlet Fission . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/631402

Chicago Manual of Style (16^th Edition):

Khan, Souratosh. “Theory of Transient Excited State Absorptions in Molecular Crystals and Dimers : Effects of Electron Correlations and their Role in Singlet Fission .” 2018. Doctoral Dissertation, University of Arizona. Accessed March 06, 2021. http://hdl.handle.net/10150/631402.

MLA Handbook (7^th Edition):

Khan, Souratosh. “Theory of Transient Excited State Absorptions in Molecular Crystals and Dimers : Effects of Electron Correlations and their Role in Singlet Fission .” 2018. Web. 06 Mar 2021.

Vancouver:

Khan S. Theory of Transient Excited State Absorptions in Molecular Crystals and Dimers : Effects of Electron Correlations and their Role in Singlet Fission . [Internet] [Doctoral dissertation]. University of Arizona; 2018. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/10150/631402.

Council of Science Editors:

Khan S. Theory of Transient Excited State Absorptions in Molecular Crystals and Dimers : Effects of Electron Correlations and their Role in Singlet Fission . [Doctoral Dissertation]. University of Arizona; 2018. Available from: http://hdl.handle.net/10150/631402

University of Minnesota

25. Wenzel, Everett. Methods for the Modeling and Simulation of Sprays and Other Interfacial Flows.

Degree: PhD, Mechanical Engineering, 2019, University of Minnesota

URL: http://hdl.handle.net/11299/209026

► Interfacial multiphase flows involve the motion of at least two fluids separated by surface tension. Atomizing interfacial flows, colloquially known as sprays, are among the… (more)

▼ Interfacial multiphase flows involve the motion of at least two fluids separated by surface tension. Atomizing interfacial flows, colloquially known as sprays, are among the most important fluid dynamic systems because of their ubiquity; power generation, delivery of aerosolized medicines, and productive produce farming all depend fundamentally on the detailed control of sprays. Atomization remains poorly understood because of a historical and persisting inability to accurately and affordably measure the dynamics inside and near the spray orifice outlet – it is therefore desirable to be able to numerically simulate sprays with high fidelity. This dissertation presents computational methods that aim to improve current shortcomings in the modeling and simulation of sprays. Accurately characterizing the interfacial curvature of poorly-resolved liquid structures is addressed by deriving a series of finite particle methods for computing curvature. The methods are verified in analytical curvature tests, and validated against the oscillation frequency of ethanol droplets in air. The finite particle method, leveraging dynamic length scale modification, is demonstrated to out-perform the widely-used height function approach. Tracking the location of interfaces is also addressed, for which a coupled Eulerian-Lagrangian point mass particle scheme is introduced that preserves a well-distributed particle field, can be applied to an arbitrary number of fluids, and does not limit the simulation time step. The Eulerian-Lagrangian method is demonstrated to out-perform contemporary geometric volume of fluid methods at resolutions relevant to spray simulation in a variety of analytical phase tracking tests, and is dynamically evaluated by simulating extending three-phase elliptical regions, droplet dynamics, and Rayleigh-Taylor instabilities. The Eulerian-Lagrangian method is then extended to an approach for consistently and conservatively solving multiphase convection-diffusion problems – this extension is verified via two analytical heat transfer problems, and robustness is demonstrated by simulating heated air blast atomization. Each of these tests conserves thermal energy and preserves boundedness of the temperature field. This dissertation concludes by outlining paths for consistently and conservatively solving the multiphase Navier-Stokes equations and the multiphase large eddy simulation equations in the coupled Eulerian-Lagrangian point mass particle framework.

Subjects/Keywords: Computational fluid dynamics; Computational physics; Fluid dynamics; Multiphase flows; Sprays

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wenzel, E. (2019). Methods for the Modeling and Simulation of Sprays and Other Interfacial Flows. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/209026

Chicago Manual of Style (16^th Edition):

Wenzel, Everett. “Methods for the Modeling and Simulation of Sprays and Other Interfacial Flows.” 2019. Doctoral Dissertation, University of Minnesota. Accessed March 06, 2021. http://hdl.handle.net/11299/209026.

MLA Handbook (7^th Edition):

Wenzel, Everett. “Methods for the Modeling and Simulation of Sprays and Other Interfacial Flows.” 2019. Web. 06 Mar 2021.

Vancouver:

Wenzel E. Methods for the Modeling and Simulation of Sprays and Other Interfacial Flows. [Internet] [Doctoral dissertation]. University of Minnesota; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/11299/209026.

Council of Science Editors:

Wenzel E. Methods for the Modeling and Simulation of Sprays and Other Interfacial Flows. [Doctoral Dissertation]. University of Minnesota; 2019. Available from: http://hdl.handle.net/11299/209026

26. Smith, Katherine Margaret. Effects of Submesoscale Turbulence on Reactive Tracers in the Upper Ocean.

Degree: 2018, University of Colorado at Boulder

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10623667

► In this dissertation, Large Eddy Simulations (LES) are used to model the coupled turbulence-reactive tracer dynamics within the upper mixed layer of the ocean.… (more)

▼ In this dissertation, Large Eddy Simulations (LES) are used to model the coupled turbulence-reactive tracer dynamics within the upper mixed layer of the ocean. Prior work has shown that LES works well over the spatial and time scales relevant to both turbulence and reactive biogeochemistry. Additionally, the code intended for use is able to carry an arbitrary number of tracer equations, allowing for easy expansion of the species reactions. Research in this dissertation includes a study of 15 idealized non-reactive tracers within an evolving large-scale temperature front in order determine and understand the fundamental dynamics underlying turbulence-tracer interaction in the absence of reactions. The focus of this study, in particular, was on understanding the evolution of biogeochemically-relevant, non-reactive tracers in the presence of both large (~5 km) submesoscale eddies and smallscale (~100 m) wave-driven Langmuir turbulence. The 15 tracers studied have different initial, boundary, and source conditions and significant differences are seen in their distributions depending on these conditions. Differences are also seen between regions where submesoscale eddies and small-scale Langmuir turbulence are both present, and in regions with only Langmuir turbulence. A second study focuses on the examination of Langmuir turbulence effects on upper ocean carbonate chemistry. Langmuir mixing time scales are similar to those of chemical reactions, resulting in potentially strong tracer-flow coupling effects. The strength of the Langmuir turbulence is varied, from no wave-driven turbulence (i.e., only shear-driven turbulence), to Langmuir turbulence that is much stronger than that found in typical upper ocean conditions. Three different carbonate chemistry models are also used in this study: time-dependent chemistry, equilibrium chemistry, and no-chemistry (i.e., non-reactive tracers). The third and final study described in this dissertation details the development of a reduced-order biogeochemical model with 17 state equations that can accurately reproduce the Bermuda Atlantic Time-series Study (BATS) ecosystem behavior, but that can also be integrated within high-resolution LES.

Subjects/Keywords: Fluid mechanics; Computational physics; Physical oceanography

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APA (6^th Edition):

Smith, K. M. (2018). Effects of Submesoscale Turbulence on Reactive Tracers in the Upper Ocean. (Thesis). University of Colorado at Boulder. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10623667

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Smith, Katherine Margaret. “Effects of Submesoscale Turbulence on Reactive Tracers in the Upper Ocean.” 2018. Thesis, University of Colorado at Boulder. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10623667.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Smith, Katherine Margaret. “Effects of Submesoscale Turbulence on Reactive Tracers in the Upper Ocean.” 2018. Web. 06 Mar 2021.

Vancouver:

Smith KM. Effects of Submesoscale Turbulence on Reactive Tracers in the Upper Ocean. [Internet] [Thesis]. University of Colorado at Boulder; 2018. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10623667.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Smith KM. Effects of Submesoscale Turbulence on Reactive Tracers in the Upper Ocean. [Thesis]. University of Colorado at Boulder; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10623667

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Capobianco, Vincent J. Effect of slot height variation on the aerodynamic performance of a circulation control airfoil| A CFD analysis.

Degree: 2017, California State University, Long Beach

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10639011

► Computational fluid dynamic (CFD) simulations were conducted on a known low aspect ratio wing design as well as four variant designs incorporating Coanda effect… (more)

Subjects/Keywords: Fluid mechanics; Computational physics; Aerospace engineering

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APA (6^th Edition):

Capobianco, V. J. (2017). Effect of slot height variation on the aerodynamic performance of a circulation control airfoil| A CFD analysis. (Thesis). California State University, Long Beach. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10639011

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Capobianco, Vincent J. “Effect of slot height variation on the aerodynamic performance of a circulation control airfoil| A CFD analysis.” 2017. Thesis, California State University, Long Beach. Accessed March 06, 2021. http://pqdtopen.proquest.com/#viewpdf?dispub=10639011.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Capobianco, Vincent J. “Effect of slot height variation on the aerodynamic performance of a circulation control airfoil| A CFD analysis.” 2017. Web. 06 Mar 2021.

Vancouver:

Capobianco VJ. Effect of slot height variation on the aerodynamic performance of a circulation control airfoil| A CFD analysis. [Internet] [Thesis]. California State University, Long Beach; 2017. [cited 2021 Mar 06]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10639011.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Capobianco VJ. Effect of slot height variation on the aerodynamic performance of a circulation control airfoil| A CFD analysis. [Thesis]. California State University, Long Beach; 2017. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10639011

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Adelaide

28. Haar, Taylor Ryan. Optimisations to Hybrid Monte Carlo for Lattice QCD.

Degree: 2019, University of Adelaide

URL: http://hdl.handle.net/2440/119919

► In Lattice Quantum Chromodynamics, we calculate physical quantities on a discrete 4D Euclidean lattice via expectation values, which take the form of path integrals. Due… (more)

▼ In Lattice Quantum Chromodynamics, we calculate physical quantities on a discrete 4D Euclidean lattice via expectation values, which take the form of path integrals. Due to the high dimensionality of these integrals, the standard technique for evaluating lattice expectation values is Monte Carlo; we generate configurations of gauge fields U and fermion fields distributed according to the lattice action S, then take a weighted average of the observable across the configurations. The most common method used to generate configurations is a Markov Chain technique called Hybrid Monte Carlo. While this technique is functional, it takes a lot of computational resources to generate configurations which are desirably close to the continuum theory. The object of this work is to investigate a variety of improvements over the basic Hybrid Monte Carlo method, and determine which combinations produce independent configurations at the lowest cost. We start by performing a systematic study of filtering for double-flavour simulations, comparing polynomial filtering to the common technique of mass filtering. We show that combining these two methods produces optimal speedup with minimal tuning of parameters, which can be a serious concern when multiple filters are involved. During this investigation, we used the novel technique of overlaid integrators for implementing multiple integration time scales, which expands the possible step-size choices. Next, we investigate improvements to single-flavour simulations, comparing polynomial filtering with a different method that we denote truncated ordered product RHMC. We obtain the best speedup when using truncation filters, but it is highly dependent on the truncation order chosen. To alleviate this problem, we apply a novel integration step-size tuning method called characteristic scale tuning which allows for step-sizes to be better tuned to the energy modes of the system. This improves the performance of our algorithms for a wide range of filter parameters, thus reducing the need to tune filter parameters. Finally, we extend our single-flavour techniques to Lattice QCD+QED simulations, which include electromagnetic effects via a photon field. Advisors/Committee Members: Kamleh, Waseem (advisor), Zanotti, James (advisor), School of Physical Sciences : Physics (school).

Subjects/Keywords: Computational physics; Lattice QCD; Hybrid Monte Carlo

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Haar, T. R. (2019). Optimisations to Hybrid Monte Carlo for Lattice QCD. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/119919

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Haar, Taylor Ryan. “Optimisations to Hybrid Monte Carlo for Lattice QCD.” 2019. Thesis, University of Adelaide. Accessed March 06, 2021. http://hdl.handle.net/2440/119919.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Haar, Taylor Ryan. “Optimisations to Hybrid Monte Carlo for Lattice QCD.” 2019. Web. 06 Mar 2021.

Vancouver:

Haar TR. Optimisations to Hybrid Monte Carlo for Lattice QCD. [Internet] [Thesis]. University of Adelaide; 2019. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/2440/119919.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Haar TR. Optimisations to Hybrid Monte Carlo for Lattice QCD. [Thesis]. University of Adelaide; 2019. Available from: http://hdl.handle.net/2440/119919

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – San Francisco

29. Garrido Ruiz, Diego. Computational studies of pH sensing design principles in proteins.

Degree: Biophysics, 2017, University of California – San Francisco

URL: http://www.escholarship.org/uc/item/0k0350df

► Changes in pH are important regulatory signals for biological function, under physiological and pathological conditions. Recent advances in computer simulations strategies have made the exploration… (more)

Subjects/Keywords: Biophysics; Computational physics; information theory; pH sensing

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APA (6^th Edition):

Garrido Ruiz, D. (2017). Computational studies of pH sensing design principles in proteins. (Thesis). University of California – San Francisco. Retrieved from http://www.escholarship.org/uc/item/0k0350df

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Garrido Ruiz, Diego. “Computational studies of pH sensing design principles in proteins.” 2017. Thesis, University of California – San Francisco. Accessed March 06, 2021. http://www.escholarship.org/uc/item/0k0350df.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Garrido Ruiz, Diego. “Computational studies of pH sensing design principles in proteins.” 2017. Web. 06 Mar 2021.

Vancouver:

Garrido Ruiz D. Computational studies of pH sensing design principles in proteins. [Internet] [Thesis]. University of California – San Francisco; 2017. [cited 2021 Mar 06]. Available from: http://www.escholarship.org/uc/item/0k0350df.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Garrido Ruiz D. Computational studies of pH sensing design principles in proteins. [Thesis]. University of California – San Francisco; 2017. Available from: http://www.escholarship.org/uc/item/0k0350df

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Washington

30. Winter, Alexander Cameron. GPU Parallelization, Validation, and Characterization of the Tensor Template Library.

Degree: 2020, University of Washington

URL: http://hdl.handle.net/1773/45226

► Previous work has developed a tool, the Tensor Template Library (TTL), which uses variadic expression template metaprogramming to capture tensor behaviors clearly and in a… (more)

▼ Previous work has developed a tool, the Tensor Template Library (TTL), which uses variadic expression template metaprogramming to capture tensor behaviors clearly and in a manner resembling the mathematical abstraction engineers are familiar with while concealing the cumbersome looping structures, in an optimized manner. This has utility in simulating physical systems in material sci-ence via finite element modelling, but with applications in systems with large numbers of small, dense tensors. The initial work of this author was to update the TTL to operate within a graphics processing unit (GPU), build a test suite to verify those updates compiled and generated correct output in a GPU environment, and then analyze performance within a submodule of a finite element solver, the Parallel Generalized Finite Element Solver (PGFEM). Initial characterization work in a GPU environment utilizing the TTL inside a submodule of the PGFEM, the Generalized Constitutive Model (GCM), was not as performant as the raw loop implementation, nor even an MPI distributed memory solution. To determine where the problem lay within the TTL (if at all), microbenchmark tests were developed to examine distinct TTL tensor operations over varying expression categories and complexities. The microbenchmark results were contrary to those observed in the GCM and indicated the TTL was considerably faster than compiler-optimized raw loops. It did however isolate a particular class of tensor operation, tensor inner products, as a point of interest to examine the dichotomous TTL behavior. Additional microbenchmarks were developed to examine the assembly code generated by the nVidia C Compiler (NVCC). Those microbenchmarks, stripped of any potentially compounding factors that may have cast doubt on the first set of microbenchmarks, validated the previous microbenchmarking results. Analysis of the assembly indicated that, in low order tensors, near-identical assembly could be generated through manual intervention over the compiler’s optimizations, however, it revealed that the compilation pipeline of the NVCC was likely to modify template source code in non-optimal ways. Template specialization of these loop structures should resolve the problem and is currently implemented in the TTL. Advisors/Committee Members: Lumsdaine, Andrew (advisor).

Subjects/Keywords: GPUs; Tensors; Computational physics; Mechanical engineering

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APA (6^th Edition):

Winter, A. C. (2020). GPU Parallelization, Validation, and Characterization of the Tensor Template Library. (Thesis). University of Washington. Retrieved from http://hdl.handle.net/1773/45226

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Winter, Alexander Cameron. “GPU Parallelization, Validation, and Characterization of the Tensor Template Library.” 2020. Thesis, University of Washington. Accessed March 06, 2021. http://hdl.handle.net/1773/45226.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Winter, Alexander Cameron. “GPU Parallelization, Validation, and Characterization of the Tensor Template Library.” 2020. Web. 06 Mar 2021.

Vancouver:

Winter AC. GPU Parallelization, Validation, and Characterization of the Tensor Template Library. [Internet] [Thesis]. University of Washington; 2020. [cited 2021 Mar 06]. Available from: http://hdl.handle.net/1773/45226.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Winter AC. GPU Parallelization, Validation, and Characterization of the Tensor Template Library. [Thesis]. University of Washington; 2020. Available from: http://hdl.handle.net/1773/45226

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations