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Full-Text Articles in Physical Sciences and Mathematics

Horace W. Slocum Journals - Accession 23, Horace W. Slocum Jan 8888

Horace W. Slocum Journals - Accession 23, Horace W. Slocum

Manuscript Collection

The Horace W. Slocum Journals include handwritten and typewritten accounts of Mr. Slocum’s journeys through South Carolina, North Carolina, Pennsylvania, Virginia, New York, Illinois, New Hampshire, and other states in search of rocks and minerals. Of special interest are photographs and maps of geological and mining sites in the typewritten, edited version of the journals. There is also a map index. The journals extend mainly from 1938 to 1956.


Matrix Multiplication, Trilinear Decompositions, Apa Algorithms, And Summation, Victor Pan Jan 2016

Matrix Multiplication, Trilinear Decompositions, Apa Algorithms, And Summation, Victor Pan

Faculty Works

Matrix multiplication (hereafter we use the acronym MM) is among the most fundamental operations of modern computations. The efficiency of its performance depends on various factors, in particular vectorization, data movement and arithmetic complexity of the computations, but here we focus just on the study of the arithmetic cost and the impact of this study on other areas of modern computing. In the early 1970s it was expected that the straightforward cubic time algorithm for MM will soon be accelerated to enable MM in nearly quadratic arithmetic time, with some far fetched implications. While pursuing this goal the mainstream research ...


An Optimal Threshold Strategy In The Two-Envelope Problem With Partial Information, Martin Egozcue, Luis Fuentes García Oct 2015

An Optimal Threshold Strategy In The Two-Envelope Problem With Partial Information, Martin Egozcue, Luis Fuentes García

Martin Egozcue

No abstract provided.


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 Aug 2015

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 ...


Of Thermal Treatment On Electrical And Physical Properties Of Coated Ceramics, K. Guerch, T. Paulmier, Justin Dekany, Jr Dennison, S. Guillemet-Fritsch, P. Lenormand Jun 2015

Of Thermal Treatment On Electrical And Physical Properties Of Coated Ceramics, K. Guerch, T. Paulmier, Justin Dekany, Jr Dennison, S. Guillemet-Fritsch, P. Lenormand

Presentations

Technical dielectric materials and ceramics are used in many different high technology industrial areas and especially for spacecraft applications. On satellites, these materials are subjected to extreme conditions due to the space plasma environment. To survive, these ceramic insulators must have exceptional electrical and thermal properties. Boron Nitride (BN) and Aluminum Oxide (Al 2O3) are used in particular because they combine good electrical insulation and high thermal conductivity. However, BN and Al2O3 used in spacecraft interiors are exposed to critical radiation demands, where these insulators are irradiated by electrons with high energies and flux. Charged particles are trapped in the ...


Castelnuovo–Mumford Regularity And Arithmetic Cohen–Macaulayness Of Complete Bipartite Subspace Arrangements, Zach Teitler, Douglas A. Torrence Jun 2015

Castelnuovo–Mumford Regularity And Arithmetic Cohen–Macaulayness Of Complete Bipartite Subspace Arrangements, Zach Teitler, Douglas A. Torrence

Mathematics Faculty Publications and Presentations

We give the Castelnuovo–Mumford regularity of arrangements of (n−2)-planes in Pn whose incidence graph is a sufficiently large complete bipartite graph, and determine when such arrangements are arithmetically Cohen–Macaulay.


Gal: A Stepwise Model For Automated Cloud Shadow Detection In Hico Oceanic Imagery Utilizing Guided Filter, Pixel Assignment, And Geometric Linking, Jennerpher Renee Meyers May 2015

Gal: A Stepwise Model For Automated Cloud Shadow Detection In Hico Oceanic Imagery Utilizing Guided Filter, Pixel Assignment, And Geometric Linking, Jennerpher Renee Meyers

Dissertations

Detection of cloud shadow pixels is an important step in image processing in several remote sensing ocean-color application domains, such as obtaining chlorophyll content. While shadow detection algorithms do exist, the vast majority are for over land which leaves few options for detection over water.

The detection of cloud shadow over water in HICO imagery is a unique problem. As its name implies, HICO (Hyperspectral Imager for the Coastal Ocean) imagery is produced for coastal and oceanic regions. Since land based algorithms remove water before processing, these approaches would not be applicable. The only currently published HICO shadow pixel detection ...


Mechanochemical Investigation Of A Glassy Epoxy-Amine Thermoset Subjected To Fatigue, Stephen F. Foster Mr. May 2015

Mechanochemical Investigation Of A Glassy Epoxy-Amine Thermoset Subjected To Fatigue, Stephen F. Foster Mr.

Dissertations

Covalent bonds in organic molecules can be produced, altered, and broken through various sources of energy and processes. These include photochemical, thermochemical, chemical, and mechanochemical processes. Polymeric materials derive their physical properties from the time scale of motion, summation of intermolecular forces, and number of chain entanglements and crosslinks. Glassy thermoset polymers experience mechanical fatigue during dynamic stress loading and properties diminish with inevitable material failure at stress levels below the ultimate tensile strength (UTS). Damage modeling has been successful in predicting the number of cycles required to induce failure in a specimen due to stress. However, it does not ...


Video Event Recognition And Prediction Based On Temporal Structure Analysis, Kang Li May 2015

Video Event Recognition And Prediction Based On Temporal Structure Analysis, Kang Li

Computer Engineering Dissertations

The increasing ubiquitousness of multimedia information in today's world has positioned video as a favored information vehicle, and given rise to an astonishing generation of social media and surveillance footage. Consumer-grade video is becoming abundant on the Internet, and it is now easier than ever to download multimedia material of any kind and quality. This raises a series of technological demands for automatic video understanding, which has motivated the research community to guide its steps towards a better attainment of such capabilities. As a result, current trends on cognitive vision promise to recognize complex events and self-adapt to different ...


Prepositional Phrase Attachment Problem Revisited: How Verbnet Can Help, Dan Bailey, Yuliya Lierler, Benjamin Susman Apr 2015

Prepositional Phrase Attachment Problem Revisited: How Verbnet Can Help, Dan Bailey, Yuliya Lierler, Benjamin Susman

Yuliya Lierler

Resolving attachment ambiguities is a pervasive problem in syntactic analysis. We propose and investigate an approach to resolving prepositional phrase attachment that centers around the ways of incorporating semantic knowledge derived from the lexico-semantic ontologies such as VERBNET and WORDNET.


Random Multipliers Numerically Stabilize Gaussian And Block Gaussian Elimination: Proofs And An Extension To Low-Rank Approximation, Victor Pan, Xiaodong Yan Apr 2015

Random Multipliers Numerically Stabilize Gaussian And Block Gaussian Elimination: Proofs And An Extension To Low-Rank Approximation, Victor Pan, Xiaodong Yan

Faculty Works

We study two applications of standard Gaussian random multipliers. At first we prove that with a probability close to 1 such a multiplier is expected to numerically stabilize Gaussian elimination with no pivoting as well as block Gaussian elimination. Then, by extending our analysis, we prove that such a multiplier is also expected to support low-rank approximation of a matrix without customary oversampling. Our test results are in good accordance with this formal study. The results remain similar when we replace Gaussian multipliers with random circulant or Toeplitz multipliers, which involve fewer random parameters and enable faster multiplication. We formally ...


Global Holomorphic Functions In Several Noncommuting Variables, Jim Agler, John E. Mccarthy Apr 2015

Global Holomorphic Functions In Several Noncommuting Variables, Jim Agler, John E. Mccarthy

Mathematics Faculty Publications

We define a free holomorphic function to be a function that is locally, with respect to the free topology, a bounded nc-function. We prove that free holomorphic functions are the functions that are locally uniformly approximable by free polynomials. We prove a realization formula and an Oka-Weil theorem for free analytic functions.


An Extensible Technology Framework For Cyber Security Education, Frank Jordan Sheen Apr 2015

An Extensible Technology Framework For Cyber Security Education, Frank Jordan Sheen

All Theses and Dissertations

Cyber security education has evolved over the last decade to include new methods of teaching and technology to prepare students. Instructors in this field of study often deal with a subject matter that has rigid principles, but changing ways of applying those principles. This makes maintaining courses difficult. This case study explored the kind of teaching methods, technology, and means used to explain these concepts. This study shows that generally, cyber security courses require more time to keep up to date. It also evaluates one effort, the NxSecLab, on how it attempted to relieve the administrative issues in teaching these ...


Authentication Melee: A Usability Analysis Of Seven Web Authentication Systems, Scott Ruoti Apr 2015

Authentication Melee: A Usability Analysis Of Seven Web Authentication Systems, Scott Ruoti

All Theses and Dissertations

Passwords continue to dominate the authentication landscape in spite of numerous proposals to replace them. Even though usability is a key factor in replacing passwords, very few alternatives have been subjected to formal usability studies and even fewer have been analyzed using a standard metric. We report the results of four within-subjects usability studies for seven web authentication systems. These systems span federated, smartphone, paper tokens, and email-based approaches. Our results indicate that participants prefer single sign-on systems. We utilize the Systems Usability Scale (SUS) as a standard metric for empirical analysis and find that it produces reliable, replicable results ...


Magical Science: Chemistry Magic Tricks Just For Fun! (Workshop), Regan L. Silvestri Mar 2015

Magical Science: Chemistry Magic Tricks Just For Fun! (Workshop), Regan L. Silvestri

Cleveland State University Regional Chemistry Teaching Symposium: March 12 & 13, 2015

Chemistry magic tricks are simply chemistry demonstrations cleverly performed, and are highly valuable for engaging and motivating students in the study of chemistry. Our agenda has been to adapt common chemistry demonstrations into presentations with clever twists, essentially turning them into magic tricks. This workshop will show how a science demonstration can be turned into a science magic trick simply by adapting the presentation. Science magic tricks provide a unique forum not only for expanding scientific knowledge, but moreover scientific interest. Our hope is that students will be engaged and motivated in the future study of chemistry.


Addressing The Achievement Gap: Engaging Students In The Chemistry Classroom, Haidy Kamel Dr. Mar 2015

Addressing The Achievement Gap: Engaging Students In The Chemistry Classroom, Haidy Kamel Dr.

Cleveland State University Regional Chemistry Teaching Symposium: March 12 & 13, 2015

No abstract provided.


Ship-Induced Solitary Riemann Waves Of Depression In Venice Lagoon, Kevin E. Parnall, Tarmo Soomere, Luca Zaggia, Artem Rodin, Giuliano Lorenzetti, John Rapaglia, Gian Marco Scarpaf Mar 2015

Ship-Induced Solitary Riemann Waves Of Depression In Venice Lagoon, Kevin E. Parnall, Tarmo Soomere, Luca Zaggia, Artem Rodin, Giuliano Lorenzetti, John Rapaglia, Gian Marco Scarpaf

Biology Faculty Publications

We demonstrate that ships of moderate size, sailing at low depth Froude numbers (0.37–0.5) in a navigation channel surrounded by shallow banks, produce depressions with depths up to 2.5 m. These depressions (Bernoulli wakes) propagate as long-living strongly nonlinear solitary Riemann waves of depression substantial distances into Venice Lagoon. They gradually become strongly asymmetric with the rear of the depression becoming extremely steep, similar to a bore. As they are dynamically similar, air pressure fluctuations moving over variable-depth coastal areas could generate meteorological tsunamis with a leading depression wave followed by a devastating bore-like feature.


The Journal Of Ocean And Coastal Economics: An Introduction And Invitation, Charles S. Colgan Mar 2015

The Journal Of Ocean And Coastal Economics: An Introduction And Invitation, Charles S. Colgan

Journal of Ocean and Coastal Economics

The Journal of Ocean and Coastal Economics publishes research, literature reviews, and application reports that use the theories and methods of economics to shape the understanding of oceans and their resources, and coastal regions. The Journal is intended for a broad audience of scholars and practitioners in economics and ocean and coastal management. "Oceans" includes the major oceans, bays, and estuaries, but other definitions may be proposed. Articles addressing both economic values and the measurement of economic activity in "ocean industries" are included, along with articles addressing the economy of coastal regions. The Journal uses an open peer review system ...


Model For Charge Injection With Electron Beams Into Highly Disordered Insulating Materials, Jr Dennison, Alec M. Sim, Gregory Wilson Mar 2015

Model For Charge Injection With Electron Beams Into Highly Disordered Insulating Materials, Jr Dennison, Alec M. Sim, Gregory Wilson

Presentations

The Walden-Wintle model for charge injection and transport through highly disordered insulating materials has been extended to include charge injection with a charged particle beam. The original model is applicable to charge injection in a dielectric material from a pair of electrodes in a parallel-plate geometry. It provides a versatile approach to predict the time-dependent current at a rear grounded electrode and the incident surface voltage, as the injection current density evolves over time with the development of a space charge barrier near the injection electrode. The Walden-Wintle model has been applied to many standard cases including Fowler-Nordheim injection, Schottky ...


Validated Automatic Brain Extraction Of Head Ct Images, John Muschelli Iii, Natalie L. Ullman, Daniel F. Hanley, Paul Vespa, Ciprian M. Crainiceanu Mar 2015

Validated Automatic Brain Extraction Of Head Ct Images, John Muschelli Iii, Natalie L. Ullman, Daniel F. Hanley, Paul Vespa, Ciprian M. Crainiceanu

John Muschelli III

Background

X-ray Computed Tomography (CT) imaging of the brain is commonly used in diagnostic settings. Al- though CT scans are primarily used in clinical practice, they are increasingly used in research. A fundamental processing step in brain imaging research is brain extraction – the process of separating the brain tissue from all other tissues. Methods for brain extraction have either been validated but not fully automated, or have been fully automated and informally proposed, but never formally validated.

Aim

To systematically analyze and validate the performance of FSL’s brain extraction tool (BET) on head CT images of patients with intracranial ...


Real Linear Maps Preserving Some Complex Subspaces, Adam Coffman Mar 2015

Real Linear Maps Preserving Some Complex Subspaces, Adam Coffman

Mathematical Sciences Faculty Publications

We find configurations of subspaces of a complex vector space such that any real linear map with sufficiently high rank that maps the subspaces into complex subspaces of the same dimension must be complex linear or antilinear.


Dust Devils And Dustless Vortices On A Desert Playa Observed With Surface Pressure And Solar Flux Logging, Ralph D. Lorenz, Brian K. Jackson Mar 2015

Dust Devils And Dustless Vortices On A Desert Playa Observed With Surface Pressure And Solar Flux Logging, Ralph D. Lorenz, Brian K. Jackson

Physics Faculty Publications and Presentations

Dust devils are convective vortices rendered visible by lofted dust, and may be a significant means of injecting dust into the atmosphere, on both Earth and Mars. The fraction of vortices that are dust-laden is not well-understood, however. Here we report a May/June 2013 survey on a Nevada desert playa using small stations that record pressure and solar flux with high time resolution (2 Hz): these data allow detection of vortices and an estimate of the dust opacity of the subset of vortices that geometrically occult the sun. The encounter rate of vortex pressure drops of 0.3 hPa ...


Mathematical Analysis Of Decahedron Having 10 Congruent Faces Each As A Right Kite By H.C. Rajpoot, Harish Chandra Rajpoot Rajpoot Hcr Mar 2015

Mathematical Analysis Of Decahedron Having 10 Congruent Faces Each As A Right Kite By H.C. Rajpoot, Harish Chandra Rajpoot Rajpoot Hcr

Harish Chandra Rajpoot H.C. Rajpoot

All the important parameters of a decahedron having 10 congruent faces each as a right kite have been derived by the author by applying HCR's Theory of Polygon to calculate normal distance of each face from the center, inscribed radius, circumscribed radius, mean radius, surface area & volume. The formula are very useful in analysis, designing & modeling of polyhedrons.


Slides: Practicing Sustainability In Natural Resource Industries, Gary D. Libecap Feb 2015

Slides: Practicing Sustainability In Natural Resource Industries, Gary D. Libecap

Natural Resource Industries and the Sustainability Challenge (Martz Winter Symposium, February 27-28)

Presenter: Gary D. Libecap, Bren School of Environmental Science and Management and Economics Department, University of California, Santa Barbara, National Bureau of Economic Research (NBER)

10 slides


Abstracts Volume 1 2014 Chinese, The Editors Feb 2015

Abstracts Volume 1 2014 Chinese, The Editors

Journal of Ocean and Coastal Economics

Abstracts for 2014 Volume in Chinese


Session D-4: Particle Physics, Peter Dong Feb 2015

Session D-4: Particle Physics, Peter Dong

Professional Learning Day

Particle physics is generally seen as far too difficult, too abstract and mathematical, to teach at the high school level — which is a pity, since particle physics is most likely to get students interested in the subject (witness the response to the discovery of the Higgs boson). However, the day-to-day work of experimental particle physicists is remarkably understandable, even for high school students willing to do a little work. We will examine assignments given at IMSA in this vein, including a class-wide analysis that simulated the search for a super symmetric Higgs boson, and discuss how they worked. Attendees will ...


Session B-3: Mathematical Games, Puzzles, And Diversions, Steven M. Condie Feb 2015

Session B-3: Mathematical Games, Puzzles, And Diversions, Steven M. Condie

Professional Learning Day

Delve into the exciting world of math through games, puzzles and other sources! Participants shall try their luck and test their skill at these diversions. Participants will leave this session with a wealth of mathematical activities appropriate for students of all ages.


Session B-1: Pipelines And Oil Spills!, Patrick Young Feb 2015

Session B-1: Pipelines And Oil Spills!, Patrick Young

Professional Learning Day

Don’t miss this hands-on approach to middle school math. Participants will construct an actual pipeline from inexpensive materials and record evidence of leakage. They will then conduct an experiment and create a model relating liquid volume and spill area. They will apply their model to determine how much liquid leaked from their pipeline.


Session B-2: The “Roll” Of Statistics In Modeling - It All Adds Up, Richard Stalmack, Janice Krouse Feb 2015

Session B-2: The “Roll” Of Statistics In Modeling - It All Adds Up, Richard Stalmack, Janice Krouse

Professional Learning Day

The common core practice standards ask us to teach students to propose mathematical models and test their viability. Participants will do an experiment, collect data and use technological tools to combine modeling, analysis and basic statistics. Participants should bring a laptop, if possible; otherwise, bring a graphing calculator.


Session A-2: From Polynomial To Rational Functions: Flip!, Ruth Dover Feb 2015

Session A-2: From Polynomial To Rational Functions: Flip!, Ruth Dover

Professional Learning Day

Ah HA! Making the connection between polynomial functions, rational functions and using reciprocals! Join us to flip, not flop, with trig for your classroom.