Migmatite Gneiss Of The Jættedal Complex, Liverpool Land, East Greenland: Protracted High-T Metamorphism In The Overriding Plate Of The Caledonian Orogen, 2015 California Polytechnic State University - San Luis Obispo

#### Migmatite Gneiss Of The Jættedal Complex, Liverpool Land, East Greenland: Protracted High-T Metamorphism In The Overriding Plate Of The Caledonian Orogen, S. M. Johnston, A. Kylander-Clark, H. K. Brueckner

*Physics*

The Greenland Caledonides (GC) formed in the overriding Laurentian plate during the closure of the Iapetus Ocean and the subduction of Baltica, and offer a unique opportunity to study metamorphic patterns, regional structures and the kinematic evolution of the overriding plate of a continental collision. We present new metamorphic petrology and coupled zircon geochronology and geochemistry data from the Jættedal complex in southern Liverpool Land to document the thermal evolution of the orogenic core of the southern GC. Pelitic migmatite gneisses from the Jættedal complex document metamorphic conditions of 850–730 °C at pressures of 11–9.5 kbar. Zircon ...

A Determination Of The Gamma-Ray Flux And Photon Spectral Index Distributions Of Blazars From The Fermi-Lat 3lac, 2015 University of Richmond

#### A Determination Of The Gamma-Ray Flux And Photon Spectral Index Distributions Of Blazars From The Fermi-Lat 3lac, Jack Singal

*Physics Faculty Publications*

We present a determination of the distributions of gamma-ray photon flux – the so-called Log*N*–Log*S* relation – and photon spectral index for blazars, based on the third extragalactic source catalogue of the *Fermi **Gamma-ray Space Telescope*'s Large Area Telescope, and considering the photon energy range from 100 MeV to 100 GeV. The data set consists of the 774 blazars in the so-called Clean sample detected with a greater than approximately 7σ detection threshold and located above ±20° Galactic latitude. We use non-parametric methods verified in previous works to reconstruct the intrinsic distributions from the observed ones which account ...

Removal Of Multiple-Tip Artifacts From Scanning Tunneling Microscope Images By Crystallographic Averaging, 2015 Portland State University

#### Removal Of Multiple-Tip Artifacts From Scanning Tunneling Microscope Images By Crystallographic Averaging, Jack C. Straton, Bill Moon, Taylor T. Bilyeu, Peter Moeck

*Physics Faculty Publications and Presentations*

Crystallographic image processing (CIP) techniques may be utilized in scanning probe microscopy (SPM) to glean information that has been obscured by signals from multiple probe tips. This may be of particular importance for scanning tunneling microscopy (STM) and requires images from samples that are periodic in two dimensions (2D). The image-forming current for double-tips in STM is derived with a slight modification of the independent-orbital approximation (IOA) to allow for two or more tips. Our analysis clarifies *why* crystallographic averaging works well in removing the effects of a blunt STM tip (that consists of multiple mini-tips) from recorded 2D periodic ...

Phase Transition And Surface Sublimation Of A Mobile Potts Model, 2015 Universite de Cergy-Pontoise

#### Phase Transition And Surface Sublimation Of A Mobile Potts Model, A. Bailly Reyre, H. T. Diep, M. Kaufman

*Miron Kaufman*

We study in this paper the phase transition in a mobile Potts model by the use of Monte Carlo simulation. The mobile Potts model is related to a diluted Potts model, which is also studied here by a mean-field approximation. We consider a lattice where each site is either vacant or occupied by a q-state Potts spin. The Potts spin can move from one site to a nearby vacant site. In order to study the surface sublimation, we consider a system of Potts spins contained in a recipient with a concentration c defined as the ratio of the number of ...

Pre-Breakdown Arcing As A Proxy For Dc Dielectric Breakdown Testing Of Polymeric Insulators, 2015 Utah State Univesity

#### Pre-Breakdown Arcing As A Proxy For Dc Dielectric Breakdown Testing Of Polymeric Insulators, Jr Dennison, Allen Andersen

*Presentations*

No abstract provided.

Mixed Weibull Distribution Model Of Dc Dielectric Breakdowns With Dual Defect Modes, 2015 Utah State University

#### Mixed Weibull Distribution Model Of Dc Dielectric Breakdowns With Dual Defect Modes, Allen Andersen, Jr Dennison

*Refereed Journal Articles*

This work provides physical insight into common statistical models for DC dielectric breakdown field strengths. Voltage step-up tests were performed on low density polyethylene films. The merits of generalizations to widely-used empirical Weibull models are discussed. The cumulative probability distributions of the breakdown fields were fit to standard two- and three-parameter Weibull distributions. Mixed two-parameter Weibull distributions, sometimes used in the literature to model multiple breakdown modes, were found to yield the best fits to the data. In addition, the same data were fit to a physically-motivated dual-defect mean field model incorporating both low- and high-energy defect modes with different ...

Few-Boson Processes In The Presence Of An Attractive Impurity Under One-Dimensional Confinement, 2015 Trinity University

#### Few-Boson Processes In The Presence Of An Attractive Impurity Under One-Dimensional Confinement, Nirav P. Mehta, Connor D. Morehead

*Physics and Astronomy Faculty Research*

We consider a few-boson system confined to one dimension with a single distinguishable particle of lesser mass. All particle interactions are modeled with δ functions, but due to the mass imbalance the problem is nonintegrable. Universal few-body binding energies, atom-dimer and atom-trimer scattering lengths, are all calculated in terms of two parameters, namely the mass ratio mL/mH, and ratio gHH/gHL of the δ-function couplings. We specifically identify the values of these ratios for which the atom-dimer or atom-trimer scattering lengths vanish or diverge. We identify regions in this parameter space in which various few-body inelastic processes become energetically ...

04. Random Variables: Concepts, 2015 University of Rhode Island

#### 04. Random Variables: Concepts, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part four of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

09. Linear Response And Equilibrium Dynamics, 2015 University of Rhode Island

#### 09. Linear Response And Equilibrium Dynamics, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part nine of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

05. Random Variables: Applications, 2015 University of Rhode Island

#### 05. Random Variables: Applications, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part five of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

08. Brownian Motion, 2015 University of Rhode Island

#### 08. Brownian Motion, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part eight of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

03. Elements Of Probability Theory With Applications, 2015 University of Rhode Island

#### 03. Elements Of Probability Theory With Applications, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part three of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

10. Zwanzig-Mori Formalism, 2015 University of Rhode Island

#### 10. Zwanzig-Mori Formalism, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part ten of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

01. Introduction: Maps, 2015 University of Rhode Island

#### 01. Introduction: Maps, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part one of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

06. Stochastic Processes: Concepts, 2015 University of Rhode Island

#### 06. Stochastic Processes: Concepts, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part six of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

07. Stochastic Processes: Applications, 2015 University of Rhode Island

#### 07. Stochastic Processes: Applications, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part seven of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

02. Probability: Intuition - Ambiguity - Absurdity - Puzzles, 2015 University of Rhode Island

#### 02. Probability: Intuition - Ambiguity - Absurdity - Puzzles, Gerhard Müller

*Nonequilibrium Statistical Physics*

Part two of course materials for Nonequilibrium Statistical Physics (Physics 626), taught by Gerhard Müller at the University of Rhode Island. Entries listed in the table of contents, but not shown in the document, exist only in handwritten form. Documents will be updated periodically as more entries become presentable.

Mixed Weibull Distribution Model Of Dc Dielectric Breakdowns With Dual Defect Modes, 2015 Utah State University

#### Mixed Weibull Distribution Model Of Dc Dielectric Breakdowns With Dual Defect Modes, Allen Andersen, Jr Dennison

*Presentations*

No abstract provided.

Hyperpolarized 129xe Magnetic Resonance Imaging Of Radiation-Induced Lung Injury, 2015 The University of Western Ontario

#### Hyperpolarized 129xe Magnetic Resonance Imaging Of Radiation-Induced Lung Injury, Ozkan Doganay

*Electronic Thesis and Dissertation Repository*

Lung cancer is the largest contributor to cancer-related mortality worldwide. Only 20% of stage III non-small cell lung cancer patients survive after 5-years post radiation therapy (RT). Although RT is an important treatment modality for lung cancer, it is limited by Radiation-Induced Lung Injury (RILI). RILI develops in two phases: (i) the early phase (days-weeks) referred to radiation pneumonitis (RP), and (ii) the late phase (months). There is a strong interest in early detection of RP using imaging to improve outcomes of RT for lung cancer. This thesis describes a promising approach based on ^{129}Xe gas as a contrast ...

Hohenberg-Kohn Theorems In Electrostatic And Uniform Magnetostatic Fields, 2015 Ningbo University

#### Hohenberg-Kohn Theorems In Electrostatic And Uniform Magnetostatic Fields, Xiao-Yin Pan, Viraht Sahni

*Faculty Publications and Research*

The Hohenberg-Kohn (HK) theorems of bijectivity between the external scalar potential and the gauge invariant nondegenerate ground state density, and the consequent Euler variational principle for the density, are proved for arbitrary electrostatic field and the constraint of fixed electron number. The HK theorems are generalized for spinless electrons to the added presence of an external uniform magnetostatic field by introducing the new constraint of fixed canonical orbital angular momentum. Thereby a bijective relationship between the external scalar and vector potentials, and the gauge invariant nondegenerate ground state density and physical current density, is proved. A corresponding Euler variational principle ...