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

*Presentations*

No abstract provided.

Small Satellite Verification And Assessment Test Facility With Space Environments Effects Ground-Testing Capabilities, 2015 Utah State University

#### Small Satellite Verification And Assessment Test Facility With Space Environments Effects Ground-Testing Capabilities, Eric Stromberg, Crystal Frazier, Lisa Montierth Phillipps, Alex Souvall, Jr Dennison, James S. Dyer

*Presentations*

The Utah State University Space Dynamics Laboratory (SDL) and Materials Physics Group (MPG) have developed an extensive versatile and cost-effective pre-launch test capability for verification and assessment of small satellites, system components, and spacecraft materials. The facilities can perform environmental testing, component characterization, system level hardware in-the-loop testing, and qualification testing to ensure that each element is functional, reliable, and working per its design. Unique capabilities of SDL’s Nano-Satellite Operation Verification and Assessment (NOVA) test facility include: (i) mass and moment of inertia testing using a high resolution mass measurement table to determine the center of gravity and an ...

Lorentz Invariant Spacelike Surfaces Of Constant Mean Curvature In Anti-De Sitter 3-Space, 2015 University of Southern Mississippi

#### Lorentz Invariant Spacelike Surfaces Of Constant Mean Curvature In Anti-De Sitter 3-Space, Jamie Patrick Lambert

*Master's Theses*

In this thesis, I studied Lorentz invariant spacelike surfaces with constant mean curvature *H** *= *c** *in the anti-de Sitter 3-space H^{3}_{1}(*−c*^{2}) of constant curvature *−c*^{2}. In particular, I construct Lorentz invariant spacelike surfaces of constant mean curvature *c** *and maximal Lorentz invariant spacelike surfaces in H^{3}_{1}(*−c*^{2}). I also studied the limit behavior of those constant mean curvature *c** *surfaces in H^{3}_{1}(*−c*^{2}). It turns out that they approach a maximal catenoid in Minkowski 3-space E^{3}_{1} as *c** **→** *0. The limit maximal catenoid is Lorentz invariant in ...

The Topology Of Absence, 2015 Claremont Colleges

#### The Topology Of Absence, Nora E. Culik

*Journal of Humanistic Mathematics*

“The Topology of Absence” literalizes triangulations, hyperbeloids, and the concept of the limit in the story of “locating” a lost mother. This story, like “The Physicist’s Basement” in the July 2014 issue, is part of a series that worries about competing notions of mathematics, i.e., mathematics as some sort of disembodied configuration or as emergent in the material reality of human life.

Simulations Of The Angular Dependence Of The Dipole-Dipole Interaction, 2015 Ursinus College

#### Simulations Of The Angular Dependence Of The Dipole-Dipole Interaction, Jacob T. Paul, Matan Peleg

*Physics and Astronomy Summer Fellows*

In our project we ran computations on a supercomputer to simulate experiments performed on highly excited atoms at μK temperatures. At μK temperatures the atoms are moving slowly so there are essentially no collisions of the atoms on the time scales at which we perform our experiments. In the absence of collisions the atoms exchange energy through long range dipole-dipole interactions. This exchange depends on the distances between and relative orientation of the atoms. The angular dependence between two atoms has recently been studied experimentally^{1} . We simulate experimentally accessible spatial arrangements to see if the effect of the angular ...

Simulations Of The Angular Dependence Of The Dipole-Dipole Interaction, 2015 Ursinus College

#### Simulations Of The Angular Dependence Of The Dipole-Dipole Interaction, Matan Peleg, Jacob T. Paul

*Physics and Astronomy Summer Fellows*

We conducted simulations of Rydberg atoms in a magneto-optical trap using the supercomputer available on campus and the COMET supercomputer provided by the NSF. Our research focused on the angular dependence of the long range interaction between Rydberg atoms. We simulated randomly distributed atoms alligned with a magnetic and electric field. We compared the simulated interaction rates for different electric field directions.

Toward Analog Quantum Computing: Simulating Designer Atomic Systems, 2015 Ursinus College

#### Toward Analog Quantum Computing: Simulating Designer Atomic Systems, Jacob L. Bigelow, Veronica L. Sanford

*Physics and Astronomy Summer Fellows*

We use a magneto-optical trap to cool rubidium atoms to temperatures in the _{µ}K range. On the _{µ}s timescales of our experiment, the atoms are moving slowly enough that they appear stationary. We then excite them to a Rydberg state, where the outer electron is loosely bound. In these high energy states, the atoms can exchange energy with each other. Since the energy exchange depends on the separation and the relative orientation of the atoms, we can potentially control their interactions by controlling the spatial arrangements of the atoms. We model this system using simulations on a supercomputer ...

Toward Quantum Analog Computing: Simulating Designer Atomic Systems, 2015 Ursinus College

#### Toward Quantum Analog Computing: Simulating Designer Atomic Systems, Veronica L. Sanford, Jacob L. Bigelow

*Physics and Astronomy Summer Fellows*

We use a magneto-optical trap to cool rubidium atoms to temperatures in the _{µ}K range. On the _{µ}s timescales of our experiment, the atoms are moving slowly enough that they appear stationary. We then excite them to a Rydberg state, where the outer electron is loosely bound. In these high energy states, the atoms can exchange energy with each other. Since the energy exchange depends on the separation and the relative orientation of the atoms, we can potentially control their interactions by controlling the spatial arrangements of the atoms. We model this system using simulations on a supercomputer ...

Waveforms For Tri-Random Arc Heating Of Dusty Plasmas, 2015 University of Iowa

#### Waveforms For Tri-Random Arc Heating Of Dusty Plasmas, Zach Haralson, John Goree

*Department of Physics & Astronomy Publications*

Supplements "Laser heating of two-dimensional dusty plasmas using a random arc pattern," vol. XX, no. XX, pp. XXX-XXX, XXX. 2015. DOI: XXXXXXXXXXX

Gait Transition Dynamics Are Modulated By Experimental Protocol, 2015 University of Connecticut - Storrs

#### Gait Transition Dynamics Are Modulated By Experimental Protocol, Mohammad Abdolvahab, Jason Gordon

*Mohammad Abdolvahab*

No abstract provided.

Application Of Resurgence Theory To Approximate Inverse Square Potential In Quantum Mechanics, 2015 Macalester College

#### Application Of Resurgence Theory To Approximate Inverse Square Potential In Quantum Mechanics, Jian Zhang Ms.

*Macalester Journal of Physics and Astronomy*

Previous work concluded that the leading term of the energy spectrum of a quantum particle moving in an inverse-square law potential with regulated singularity is non-perturvative in nature. Trans-series and resurgence theory predicts the emergence of perturbative, and potentially logarithmic, corrections to the leading behavior. This talk relates an attempt to systematically calculate such corrections for the first time.

Simulating Correlated Disorder In Spin Glass, 2015 Macalester College

#### Simulating Correlated Disorder In Spin Glass, Jared D. Willard

*Macalester Journal of Physics and Astronomy*

Almost all materials undergo spontaneous symmetry breaking at sufficiently low

temperatures. For most magnetic materials, the spin rotational symmetry is broken

to form magnetic ordering. The discovery of metallic alloys which fail to form

conventional magnetic order has remained a puzzle for the last few decades.

Unfortunately, analytical calculations cannot provide an unbiased answer for the

problem. Furthermore, on the numerical side, Monte Carlo simulations require

extremely long equilibration times. The parallel tempering method has proven a

powerful tool to alleviate the long equilibration time. With the extensive efforts of

numerical simulation research, some of the idealized models have been ...

The Online System For Lidar Data Handling And Real Time Monitoring Of Lidar Operations At Alo-Usu, 2015 Utah State University

#### The Online System For Lidar Data Handling And Real Time Monitoring Of Lidar Operations At Alo-Usu, Luis Navarro Dominguez, Vincent B. Wickwar, Jose Gamboa, Marco Milla

*Conference publications*

t is no longer sufficient to use lidar, such as the Rayleigh lidar at the Atmospheric Lidar Observatory (ALO) at Utah State University (USU), to observe the middle atmosphere and reduce the data to geophysical parameters. Extended operations, with inevitable equipment, data reduction, and analysis improvements, require us to keep careful track of all these changes and how they affect the scientific products. Furthermore, many of the funding agencies and the journals now require us to do, at least, some of this. We have built three interconnected data structures to organize and manage the different hardware and software set- ups ...

Cover, 2015 University of Tennessee, Knoxville

Masthead, 2015 University of Tennessee, Knoxville

From The Editor, 2015 University of Tennessee, Knoxville

Student Writing Competition, 2015 University of Tennessee, Knoxville

#### Student Writing Competition

*International Journal of Nuclear Security*

No abstract provided.

The Robert H. Goddard Papers, 2015 Clark University

#### The Robert H. Goddard Papers, Robert H. Goddard

*Archives and Special Collections Finding Aids*

Dr. Robert H. Goddard was a member of the Clark Physics Department for 29 years. Foremost American pioneer of rocket research, he laid the technical and theoretical foundations for many of the developments in long-range rockets, missiles, satellites and space flight, which collectively put us into the Space Age.

The collection includes correspondence, diaries, journals, patent applications and awards, reports, and photographs. The collection also includes original paintings by Dr. Goddard.

Variations In Mesospheric Neutral Densities From Rayleigh Lidar Observations At Utah State University, 2015 Utah State University

#### Variations In Mesospheric Neutral Densities From Rayleigh Lidar Observations At Utah State University, David L. Barton, Vincent B. Wickwar, Joshua P. Herron, Leda Sox, Luis A. Navarro

*Conference publications*

A Rayleigh lidar was operated from 1993 to 2004, at the Atmospheric Lidar Observatory (ALO; 41.7°N, 111.8°W) at the Center for Atmospheric and Space Sciences (CASS) on the campus of Utah State University (USU). Observations were carried out on over 900 nights, 729 of which had good data starting at 45 km and going upward toward 90 km. They were reduced for absolute temperatures and relative neutral number densities. The latter at 45 km can be put on an absolute basis by using atmospheric models that go up to at least 45 km. The models’ absolute ...