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.

Stealth Assessment In Video Games, 2015 Florida State University

#### Stealth Assessment In Video Games, Val Shute

*From 2009 - 2014 ACER Research Conference series*

Games can be powerful vehicles to support learning, but their success in education hinges on getting the assessment part right. In this presentation, I will explore how games can use stealth assessment to measure and support the learning of competencies critical for the future. I will discuss what stealth assessment is, why it is important, and how to develop and accomplish it. I will also provide examples within the context of a game called *Physics Playground *that I designed and developed with my team. I’ll share what has been learned by recent research on stealth assessments in games, including ...

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 ...

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 ...

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 ...

#### Modern Study Of Environmental Pollution From The Emission Of Alpha Particles In Human Blood Samples In The City Of Najaf, Iraq, Basim A. Almayahi

*21st International Conference on Environmental Indicators (ICEI 2015)*

No abstract provided.

Book Review: High G Flight - Physiological Effects And Countermeasures, 2015 Embry-Riddle Aeronautical University - Worldwide

#### Book Review: High G Flight - Physiological Effects And Countermeasures, Stefan Kleinke

*International Journal of Aviation, Aeronautics, and Aerospace*

This review provides insight on the content and a review of the quality of the recent release of *High G Flight - Physiological Effects and Countermeasures* from Ashgate Publications.

This review does not reflect the views of IJAAA or ERAU. This work was not peer reviewed.

High G Flight - Physiological Effects and Countermeasures

Global Optimized Isothermal And Nonlinear Models Of Earth’S Standard Atmosphere, 2015 AAR Aerospace Consulting, LLC

#### Global Optimized Isothermal And Nonlinear Models Of Earth’S Standard Atmosphere, Nihad E. Daidzic, Ph.D.,

*International Journal of Aviation, Aeronautics, and Aerospace*

Both, a global isothermal temperature model and a nonlinear quadratic temperature model of the ISA was developed and presented here. Constrained optimization techniques in conjunction with the least-square-root approximations were used to design best-fit isothermal models for ISA pressure and density changes up to 47 geopotential km for NLPAM, and 86 orthometric km for ISOAM respectively. The mass of the dry atmosphere and the relevant fractional-mass scale heights have been computed utilizing the very accurate eight-point Gauss-Legendre numerical quadrature for both ISOAM and NLPAM. Both, the ISOAM and the NLPAM represent viable alternatives to ISA in many practical applications and ...

Scaling Laws For High-Order-Harmonic Generation With Midinfrared Laser Pulses, 2015 Voronezh State University, Russia

#### Scaling Laws For High-Order-Harmonic Generation With Midinfrared Laser Pulses, M. V. Frolov, N. L. Manakov, Wei-Hao Xiong, Liang-You Peng, J. Burgdörfer, Anthony F. Starace

*Anthony F. Starace Publications*

We derive an analytic expression for thewavelength scaling of the high-order-harmonic generation (HHG) yield induced by midinfrared driving laser fields. It is based on a quasiclassical description of the returning electron wave packet, which is shown to be largely independent of atomic properties. The accuracy of this analytic expression is confirmed by comparison with results of numerical solutions of the time-dependent Schr¨odinger equation for wavelengths in the range of 1.4 μm ≤ λ ≤ 4 μm. We verify the wavelength scaling of the HHG yield found numerically for midinfrared laser fields in a recent paper by Le et al. [

#### Calculating The Energy Barriers Required To Join Metal-Organic Framework Synthesis Intermediates With Non-Equilibrium Molecular Simulation, Marcus A. Tubbs, David Cantu, Roger Rousseau, Vassiliki-Alexandra Glezakou

*STAR (STEM Teacher and Researcher) Program Posters*

Metal organic frameworks (MOFs) are synthetic materials made of a cage-like lattice of metal nodes connected by organic linkers. The pores between the nodes define the characteristics of the material. A MOF, MIL-101, has shown great capacity in the adsorption of carbon dioxide and methane, as well as in hydrogenation catalysis with palladium. While there has been success in synthesizing MIL-101 and other MOFs, the mechanistic details behind their assembly remain unknown. Understanding the synthesis mechanism is necessary to understand the kinetics involved and be able to produce this useful material on an industrial scale. Using MIL-101 as a prototypical ...

Design And Fabrication Of Liquid Scintillator Counter, 2015 California State University - Long Beach

#### Design And Fabrication Of Liquid Scintillator Counter, Andrea Calderon Saucedo, John L. Orrell

*STAR (STEM Teacher and Researcher) Program Posters*

Pacific Northwest National Laboratory (PNNL) is currently developing an ultra-low background liquid scintillator counter (ULB LSC) in the shallow underground laboratory. At a depth of 35-meters water-equivalent, the underground laboratory has a multi-layered shielding to keep out cosmic-ray induced background. The ULB LSC, which is located in a clean room facility, is a multi-layered design made up of various materials, including plastic scintillator veto panels, borated polyethylene, lead and copper. These layers help lower the contributions of the terrestrial background and intrinsic background, resulting from the impurities present in the materials, to the overall background count rate observed by the ...

Mapping Open Water Bodeis With Optical Remote Sensing, 2015 NASA Jet Propulsion Lab

#### Mapping Open Water Bodeis With Optical Remote Sensing, Mary Ellen O'Donnell, Erika Podest

*STAR (STEM Teacher and Researcher) Program Posters*

There is interest in mapping open water bodies using remote sensing data. Coverage and persistence of open water is currently a poorly measured variable due to its spatial and temporal variability across landscapes, especially in remote areas. The presence and persistence of open water is one of the primary indicators of conditions suitable for mosquito breeding habitats. Predicting the risk of mosquito caused disease outbreaks is a required step towards their control and eradication. Satellite observations can provide needed data to support agency decisions for deployment of preventative measures and control resources. This study, which will try to map open ...

Foundations Of Wave Phenomena: Complete Version, 2015 Department of Physics, Utah State University

#### Foundations Of Wave Phenomena: Complete Version, Charles G. Torre

*Foundations of Wave Phenomena*

This is the complete version of *Foundations of Wave Phenomena. Version 8.1.*

Please click here to explore the components of this work.

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.

Maybe I Could Use This Again! Two Ideal Labs Introducing Instrumentation, 2015 Southern Adventist University

#### Maybe I Could Use This Again! Two Ideal Labs Introducing Instrumentation, Sean Bryant, William B. Laing Iii

*Faculty Works*

Physics lab students are introduced to custom instrumentation using Arduino-like microcontrollers which have allowed us to implement two labs of particular utility for life-science majors. Constructing a fluid circuit using the sponge-resistor model, flow sensors and an LCD display show the current through each section of pipe. The instrument can simultaneously measure and record 18 voltages, which enables us to record high-frequency “snap shots” of a signal generated on an RC-circuit model of an axon. The IDEAL lab collaboration is developing labs that are open, applied to life, and rigorously quantitative.

The Physics Of Human Performance: An Ideal Lab, 2015 Southern Adventist University

#### The Physics Of Human Performance: An Ideal Lab, William B. Laing Iii, Harold Mayer

*Faculty Works*

Physics lab goes to the gymnasium, where students calculate the mechanical power required to walk on an inclined treadmill in watts and convert to units power used to measure human performance: VO2, and METs. Students learn how to use two linear regression models: the ACSM "walking equation" to estimate the actual power expenditure of walking and the Rockport 1 mile test to estimate their own VO2max. Students use models to prescribe exercise parameters for themselves and for two cases. The IDEAL lab collaboration is developing labs that are open, applied to life, and rigorously quantitative.

Quantifying Measurement Error In Digital Instruments, 2015 Southern Adventist University

#### Quantifying Measurement Error In Digital Instruments, William B. Laing Iii, Sean Bryant

*Faculty Works*

A first lab experiment clearly illustrates that a glucose meter is actually an excellent source of both random and systematic error, much to the surprise to students and physicians alike. A histogram is constructed and the utility of the standard deviation and standard error to quantify the uncertainty in each measurement and in the mean value, respectively, is demonstrated. From the first lab on, students are challenged to express and interpret confidence intervals in order to form quantitative conclusions. Assessments reveal that many students find this to be surprisingly challenging.

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.