Digital Commons Network^™

Regular And Irregular Type Spacing Error With Tooth Profile Modification Effect On Dynamic Load Of Spur Gear System, Yuxin Qi

Electronic Theses and Dissertations Archive

The dynamic load of gears with regular type of spacing error such as full-sine and half-sine type has been analyzed in several previous research works. In this study, the irregular type of tooth spacing error is incorporated with the regular type ones to determine their effect on gear dynamic response. Linear and Parabolic tooth profile modification are applied to evaluate their influence on the dynamic loads of gear systems with regular or irregular tooth spacing errors. All dynamic analyses are conducted using the NASA gear dynamics code, DANST program.The objective of this study is to examine the relationship between gear …

Hermitian Operators And Projections On Hardy Spaces, Raena Bryant King

Electronic Theses and Dissertations Archive

We look at unbounded hermitian operators on Kolaski spaces with derivatives in a smooth space, $H_N$. We find the generator of one parameter groups of isometries on Kolaski spaces and provide spectral properties of the generator. We apply this result to the $S^p(D)$ spaces using results from Berkson and Porta on $H^p$ spaces. We then consider the vector valued space $H^p_{mathcal{H}}$ and determine the bounded hermitian operators and provide results if a particular group of disk automorphisms is used. In the second part we find that the generalized bi-circular projections on $H^p(mathbb{T}^2)$ are given by the average of the identity …

Mapping The Invisible: A Framework For Tracking Covid-19 Spread Among College Students With Google Location Data, Prajindra Sankar Krishnan, Chai Phing Chen, Gamal Alkawsi, Sieh Kiong Tiong, Luiz Fernando Capretz

Electrical and Computer Engineering Publications

The COVID-19 pandemic and the implementation of social distancing policies have rapidly changed people's visiting patterns, as reflected in mobility data that tracks mobility traffic using location trackers on cell phones. However, the frequency and duration of concurrent occupancy at specific locations govern the transmission rather than the number of customers visiting. Therefore, understanding how people interact in different locations is crucial to target policies, inform contact tracing, and prevention strategies. This study proposes an efficient way to reduce the spread of the virus among on-campus university students by developing a self-developed Google History Location Extractor and Indicator software based …

Managing For Resilience: Early Detection Of Regime Shifts In Complex Systems, Tarsha Eason, Ahjond S. Garmestani, Heriberto Cabezas

United States Environmental Protection Agency: Publications

The broad implications of catastrophic regime shifts have prompted the need to find methods that are not only able to detect regime shifts but more importantly, identify them before they occur. Rising variance, skewness, kurtosis, and critical slowing down have all been proposed as indicators of impending regime shifts. However, these approaches typically do not signal a shift until it is well underway. Further, they have primarily been used to evaluate simple systems; hence, additional work is needed to adapt these methods, if possible, to real systems which typically are complex and multivariate. Fisher information is a key method in …

Theory, Synthesis, And Application Of Adiabatic And Reversible Logic Circuits For Security Applications, Matthew Arthur Morrison

USF Tampa Graduate Theses and Dissertations

Programmable reversible logic is emerging as a prospective logic design style for implementation in modern nanotechnology and quantum computing with minimal impact on circuit heat generation. Adiabatic logic is a design methodology for reversible logic in CMOS where the current flow through the circuit is controlled such that the energy dissipation due to switching and capacitor dissipation is minimized. Recent advances in reversible logic using and quantum computer algorithms allow for improved computer architectures. Production of cost-effective Secure Integrated Chips, such as Smart Cards, requires hardware designers to consider tradeoffs in size, security, and power consumption. In order to design …

First In Reform: The Adoption Of Common Core State Standards In Kentucky, Richard Day

Journal of Excellence in College Teaching and Learning

Kentucky first drew national attention when its Supreme Court declared the entire system of schools to be unconstitutional in Rose v Council for Better Education, 790 S. W. 2d 186 (1989). The Rose case, argued by former Kentucky Governor Bert Combs, launched a third wave of school reform litigation based on both equity and adequacy as expressed in state constitutions (Day 2011, 2-4). On February 11, 2010, in an unprecedented joint meeting, the chairs of the Kentucky Board of Educat ion, the Council on Postsecondary Education, and the Education Professional Standards Board signed a resolution directing their respective agencies to …

Creativity To The Core: How The Ky Core Academic Standards Can Enhance Creativity--Research, Dorie Combs

Journal of Excellence in College Teaching and Learning

The Common Core State Standards (CCSS) were developed by the Council of Chief State School Officers (CCSSO) and the National Governor’s Association in response to concerns about the poor performance of US students in comparison to students in other industrialized nations. A lack of understanding of the standards has led some to assume that any standards-based curriculum is going to focus on lower-level thinking skills and therefore impede critical and creative thinking. While Kentucky’s English language arts and mathematics standards are derived from the CCSS, Kentucky’s learning targets and standards are not limited to the CCSS standards. That is, there …

Editorial Note From The Guest Editor, Terry Holiday

Journal of Excellence in College Teaching and Learning

Not that long ago, K-12 education and postsecondary education were mutually exclusive clubs. Each set their own agenda, strategies and goals – without input from the other and at times in direct conflict. Occasionally, they blamed one another for failures, yet most of the time they kept to themselves.

Laser Induced Ignition With Resonant Multiphoton Absorption In Oxygen, Steven F. Adams

Physics Seminars

A novel resonant laser-induced breakdown scheme has been demonstrated to provide precision spatial guidance of spark formation within an air flow and has been further demonstrated successfully in resonant laser-induced ignition of a moderate-speed flow of an air-propane mixture. This scheme could potentially provide ignition within a combustion system with a laser trigger leading to breakdown of an air-fuel flow within a high-voltage gap using a compact low power laser source. The laser scheme involves resonant enhanced multiphoton ionization (REMPI) in molecular oxygen and subsequent laser field-enhanced electron avalanche to generate a pre-ionized micro-plasma path between high voltage electrodes and …

Double Resonance Spectroscopy Of The D1Πu+ And B''B-Bar 1Σu+ States Near The Third Dissociation Threshold Of H2, R. C. Ekey, A. E. Cordova, W. Duan, Alexander M. Chartrand, Elizabeth Mccormack

Physics Faculty Research and Scholarship

Double-resonance laser spectroscopy via the E, F ¹Σ_g⁺, v' = 6, J' state was used to probe the energy region below the third dissociation limit of molecular hydrogen. Resonantly enhanced multi-photon ionization spectra were recorded by detecting ion production as a function of energy using a time-of-flight mass spectrometer. Energies and line widths for the v = 14–17 levels of the D¹Π_u⁺ state of H₂ are reported and compared to experimental data obtained by using VUV synchrotron light excitation (Dickenson et al. 2010 J. Chem. Phys. 133 144317) and fully ab …

A Five-Year Study Of Sustaining Blended Learning Initiatives To Enhance Academic Engagement In Computer And Information Sciences Campus Courses, Laurie P. Dringus, Amon B. Seagull

CCE Faculty Books and Book Chapters

No abstract provided.

The Spectral Properties Of (-)-Epigallocatechin 3-O-Gallate (Egcg) Fluorescence In Different Solvents: Dependence On Solvent Polarity, Vladislav Snitsarev, Michael N. Young, Ross M.S. Miller, David P. Rotella

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

(-)-Epigallocatechin 3-O-gallate (EGCG) a molecule found in green tea and known for a plethora of bioactive properties is an inhibitor of heat shock protein 90 (HSP90), a protein of interest as a target for cancer and neuroprotection. Determination of the spectral properties of EGCG fluorescence in environments similar to those of binding sites found in proteins provides an important tool to directly study protein-EGCG interactions. The goal of this study is to examine the spectral properties of EGCG fluorescence in an aqueous buffer (AB) at pH=7.0, acetonitrile (AN) (a polar aprotic solvent), dimethylsulfoxide (DMSO) (a polar aprotic solvent), and ethanol …

Soil Respiration In A Northeastern Us Temperate Forest: A 22‐Year Synthesis, M. A. Giasson, A. M. Ellison, R. D. Bowden, Patrick M. Crill, Erik A. Davidson, J. E. Drake, Serita D. Frey, J. L. Hadley, M. Lavine, J. M. Melillo, J. W. Munger, K. J. Nadelhoffer, L. Nicoll, Scott V. Ollinger, K. E. Savage, P. A. Steudler, J. Tang, Ruth K. Varner, S. C. Wofsy, D. R. Foster, A. C. Finzi

Faculty Publications

To better understand how forest management, phenology, vegetation type, and actual and simulated climatic change affect seasonal and inter‐annual variations in soil respiration (Rs), we analyzed more than 100,000 individual measurements of soil respiration from 23 studies conducted over 22 years at the Harvard Forest in Petersham, Massachusetts, USA. We also used 24 site‐years of eddy‐covariance measurements from two Harvard Forest sites to examine the relationship between soil and ecosystem respiration (Re).

Rs was highly variable at all spatial (respiration collar to forest stand) and temporal (minutes to years) scales of measurement. The response of Rs to experimental manipulations mimicking …

Bulletin, Dmacc Marketing

Bulletin

No abstract provided.

Agenda And Minutes, University Of South Florida St. Petersburg General Education Committee Meeting, November 22, 2013, University Of South Florida St. Petersburg. Faculty Senate. General Education Committee

USF St. Petersburg General Education Committee Meetings

Agenda and minutes from the November 22, 2013, meeting of the General Education Committee of the University of South Florida St. Petersburg's Faculty Senate.

The Pseudo-Rigid-Body Model For Fast, Accurate, Non-Linear Elasticity, Anthony R. Hall

Theses and Dissertations

We introduce to computer graphics the Pseudo-Rigid-Body Mechanism (PRBM) and the chain algorithm from mechanical engineering, with a unified tutorial from disparate source materials. The PRBM has been used successfully to simplify the simulation of non-linearly elastic beams, using deflections of an analogous spring and rigid-body linkage. It offers computational efficiency as well as an automatic parameterization in terms of physically measurable, intuitive inputs which fit naturally into existing animation work flows for character articulation. The chain algorithm is a technique for simulating the deflection of complicated elastic bodies in terms of straight elastic elements, which has recently been extended …

Spectral Target Detection Using Physics-Based Modeling And A Manifold Learning Technique, James A. Albano

Theses

Identification of materials from calibrated radiance data collected by an airborne imaging spectrometer depends strongly on the atmospheric and illumination conditions at the time of collection. This thesis demonstrates a methodology for identifying material spectra using the assumption that each unique material class forms a lower-dimensional manifold (surface) in the higher-dimensional spectral radiance space and that all image spectra reside on, or near, these theoretic manifolds. Using a physical model, a manifold characteristic of the target material exposed to varying illumination and atmospheric conditions is formed. A graph-based model is then applied to the radiance data to capture the intricate …

Physics-Based Surface Energy Model Optimization For Water Bodies In Cold Climates Using Visible And Calibrated Thermal Infrared Imagery, May V. Casterline

Theses

When tasked with accurately modeling a water body in a cold climate environment, the complexity of the system being simulated and the numerous parameters affecting the observable outcome pose an arduous task for any modeling effort. The task is increasingly complicated when the body of water is serving as a cooling pond for a power plant and can become partially frozen. The introduction of a heat effluent into the water creates a highly dynamic system whose physical state is not only reactionary to the surrounding environmental conditions, but the industrial facility's operating parameters as well. Both calibrated thermal and visible …

Rule-Based Conditional Trust With Openpgp., Andrew Jackson

Theses

This thesis describes a new trust model for OpenPGP encryption. This trust model uses conditional rule-based trust to establish key validity and trust. This thesis describes "Trust Rules" that may be used to sort and categorize keys automatically without user interaction. "Trust Rules" are also capable of integrating key revocation status into its calculations so it too is automated. This thesis presents that conditional trust established through "Trust Rules" can enforce stricter security while reducing the burden of use and automating the process of key validity, trust, and revocation.

Review And Extension For The O’Brien Fleming Multiple Testing Procedure, Hanan Hammouri

Theses and Dissertations

O'Brien and Fleming (1979) proposed a straightforward and useful multiple testing procedure (group sequential testing procedure) for comparing two treatments in clinical trials where subject responses are dichotomous (e.g. success and failure). O'Brien and Fleming stated that their group sequential testing procedure has the same Type I error rate and power as that of a fixed one-stage chi-square test, but gives the opportunity to terminate the trial early when one treatment is clearly performing better than the other. We studied and tested the O'Brien and Fleming procedure specifically by correcting the originally proposed critical values. Furthermore, we updated the O’Brien …

Newsletter, November 2013, Aaup Chapter, Illinois Wesleyan University

Chapter Activities

No abstract provided.

Montana Kaimin, November 22, 2013, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula. Pages 6-7 are missing.

Meeting Minutes, Wku University Senate

Faculty Senate

Meeting regarding meeting procedures, budget, faculty vacancies, accreditation, Information Technology policies, electronic mail, Colonnade plan, SITE evaluations, and faculty governance.

The Fierce Green Fire: Vol. 4 Issue 11, Wofford College Environmental Studies Program

The Fierce Green Fire

No abstract provided.

Right Flier: Newsletter Of The Aaup-Wsu Volume 14, Number 4, 2013-2014, American Association Of University Professors-Wright State University

The Right Flier Newsletter

A five page newsletter created by the Wright State University chapter of the American Association of University Professors. This newsletter features the article "The Coming Battle over Health Benefits" detailing what the administration has imposed on other employees effective January 1, 2014 regarding health insurance benefits, why it cannot do this to faculty, and what faculty can expect in the upcoming CBA negotiations.

Dominican, High School Students Focus On Hunger, Sarah Gardner, Dave Albee

Press Releases

In November, students held “a teach-in” featuring a screening of the documentary film A Place at the Table. The event also featured a presentation by the San Francisco and Marin Food Banks about their efforts to supply healthy, fresh food to food insecure families and ways to support these efforts.

Imls Place Grant: Campus Journal Press Release, Place Project Group

PLACE Project

Campus Journal press release describing the PLACE (Position-based Location Archive Coordinate Explorer) project that is funded by the Institute for Museum and Library Services. The University of New Hampshire (UNH) library partnered with the UNH Earth Systems Research Center to develop a geospatial interface that is searchable by geospatial coordinates.

Student Performance In A Principle Of Microeconomics Course Under Hybrid And Face-To-Face Delivery, P. Verhoeven, T. Rudchenko

Faculty Articles

Designing a hybrid course entails the challenge of choosing learning activities for each of the face-to-face and online environments--and sequencing and coordinating the activities across the two environments--to promote student attainment of the course’s learning objectives. This paper presents a study comparing student performance in an undergraduate Principles of Microeconomics course taught by the same instructor under hybrid (n = 51) and face-to-face (n = 24) delivery. The percentage of hybrid students completing the course (71%) was not significantly different (chi-square = .61, p = .433) than that (79%) of the face-to-face students. A regression analysis controlling for student GPA …

New Bis(Imino)Pyridine Complexes Of Iron(Ii) And Iron(Iii), And Their Catalytic­ Activity In The Mukaiyama Aldol Reaction, Pushkar Shejwalkar, Nigam Rath, Eike Bauer

Chemistry & Biochemistry Faculty Works

New iron(II) and iron(III) complexes bearing bis(imino)pyridine ligands were synthesized and successfully applied to the Mukaiyama aldol reaction. The two complexes [FeCl2 L] (L = bis(imino)pyridine ligand, 55% isolated yield) and [LFe(μCl)3FeCl3] (76%) were obtained employing FeCl2 and FeCl3 iron sources, respectively, and characterized by elemental analyses, mass spectrometry, IR spectroscopy and, one example, by X-ray diffraction. The two new iron complexes were subsequently employed as catalysts in the Mukaiyama aldol reaction after abstraction of two chlorides by AgSbF6 to obtain the aldol products in 43% to virtually quantitative yield (CH2Cl2 solvent, room temperature, 3.5 to 16 h reaction time). …

November 2013 Academic Affairs Minutes, University Of Nebraska At Kearney Academic Affairs Committee

Academic Affairs Committee Minutes

No abstract provided.