Digital Commons Network^™

An Experimental Investigation Of Airfoils With Laminar Separation Bubbles And Effects Of Distributed Suction, Redha Wahidi

Theses and Dissertations

In an effort to understand the behavior of the laminar separation bubbles on NACA 0012 and Liebeck LA2573a airfoils at different Reynolds numbers and angles of attack, the boundary layers on the solid airfoils were investigated by measuring the mean and fluctuating components of the velocity profiles over the upper surfaces of the airfoils. Surface pressure measurements were carried out to complete the mapping of the laminar separation bubble and to calculate the lift generated by the airfoils. The experiments were carried out at Reynolds numbers of 150,000 and 250,000. The locations of separation, transition and reattachment were determined as …

Swinburne And Catholicism: Unifying The Flesh And The Spirit, James Daniel Gillespie

Theses and Dissertations

Many efforts have been made by nineteenth and twentieth-century critics alike to classify Charles Algernon Swinburne’s Poems and Ballads (1866) as blatantly sacrilegious. This evaluative approach, however, fails to account for the thematic significance of Swinburne’s nuanced use of Christian imagery. Through a reading of three representative poems from the collection – “Dolores,” “Anactoria,” and “Laus Veneris” – this thesis demonstrates that Swinburne appropriates the Catholic concepts of transubstantiation, confession, and suffering for a specific aesthetic purpose. In the Catholic tradition, these concepts symbolically represent a unification of ostensibly antithetical states to achieve transcendence. For instance, the doctrine of transubstantiation …

Techniques To Aid In Switchgrass Establishment From Seed, Jason Brett Rushing

Theses and Dissertations

Switchgrass (Panicum virgatum) is a native warm-season grass where weed control during establishment is a limiting factor for stand. Objectives of this research are to develop a herbicide resistant cultivar and to test a variety of seed safeners to improve first year growth. Phenotypic recurrent selection (PRS) was used to select ‘Alamo’ switchgrass seedlings that showed resistance to imazapic herbicide at 245 g a.i./ha. Initial screenings of 364, 650 seedlings resulted in 63 survivors, a selection intensity of 0.0172%. Subsequent testing of the next generation of seedlings indicated that multiple generations of selection were needed in order to transfer greater …

Finite Element Modeling Of Plasticity Induced Crack Closure And A Mechanics Based Study Of Crack Closure Measurement Techniques, Marcos Lugo

Theses and Dissertations

From its discovery, crack closure was recognized as a key aspect in understanding the fatigue crack growth process. Considering the condition of plane stress, a vast amount of research has been conducted experimentally, analytically, and numerically to understand the complex process of fatigue crack growth and crack closure. Nonzero crack opening stress values are routinely observed, and it seems that there is a general agreement regarding the incidence of the phenomenon under plane stress. However, investigations regarding crack closure under plane strain conditions are less abundant. Moreover, the existence of crack closure under the plane strain state of the stress …

Flathead Catfish Stock Characteristics In The Pascagoula River Following Hurricane Katrina, Russell M. Barabe

Theses and Dissertations

Flathead catfish stocks in the Pascagoula River were decimated by the passage of Hurricane Katrina. Age-0 fish survived the storm, producing a strong 2005 year-class. Reproduction by the remaining adults and/or downstream movement from tributaries produced an additional strong cohort in 2006. The strong 2005 year-class resulted in the capture of a high proportion of two-year-old fish in 2007. In 2008, a high proportion of two- and three-year-old fish were captured, illustrating the high rate of survival of the 2005 year-class, and the presence of a strong 2006 year-class. The flathead catfish population of the Pascagoula River was dominated by …

Fusion Of Spectral Reflectance And Derivative Information For Robust Hyperspectral Land Cover Classification, Hemanth Reddy Kalluri

Theses and Dissertations

Developments in sensor technology have made high resolution hyperspectral remote sensing data available to the remote sensing analyst for ground cover classification and target recognition tasks. Further, with limited ground-truth data in many real-life operating scenarios, such hyperspectral classification systems often employ dimensionality reduction algorithms. In this thesis, the efficacy of spectral derivative features for hyperspectral analysis is studied. These studies are conducted within the context of both single and multiple classifier systems. Finally, a modification of existing classification techniques is proposed and tested on spectral reflectance and derivative features that adapts the classification systems to the characteristics of the …

Ged Students Versus Traditional High School Students: How Do The Ged Graduates Perform After The First Semester Of Attendance At A Rural Community College?, Ericka Akins

Theses and Dissertations

The purpose of this study was to determine if freshman students based on their age, ethnicity, and gender who enter a community college with a GED credential will have a higher cumulative grade point average (GPA) after their first semester than traditional high school graduates. Findings from this study will aid individuals in developing a more accurate perception of the academic abilities of GED graduates. The academic performance of GED graduates was compared with traditional high school graduates after their first semester at a rural community college in the Fall 2007 semester. Intact data from the students f academic records …

Gamma-Ray Bursts: New Parameters For Measuring Energy Dependent Spectral Lag Times, Phillip Jefferson Durst

Theses and Dissertations

A new method for measuring the hardness-intensity correlation (HIC) present in gamma-ray bursts (GRB) is developed. This method is used to measure the HIC for 100 single-peak gamma-ray bursts, 17 with known redshifts. The HIC is thus shown to be a consequence of energy-dependent lag times between hard and soft photons. Parameters derived from time profile fits using a modified double sigmoidal function are used to calculate a new set of lag time parameters for bursts, and these parameters are analyzed statistically to look for correlations with intrinsic GRB properties. This analysis shows that GRB red shift is related to …

Identification Of Micrornas In Bovine Spermatozoa With Implications Of Fertility, Lashonda S (Lashonda Shakita) Robertson

Theses and Dissertations

MicroRNAs are small RNA molecules that could possibly play a major role in fertility. In the experiment, spermatozoa were extracted from bovine followed by an extraction of total RNA. Bovine spermatozoa were extracted from two bulls of different fertility, high and low fertility. An expression array was done to compare the expression levels of the microRNAs. It was shown that thousands of microRNAs are present in bovine spermatozoa but only a small amount was significantly expressed. The microRNAs from low fertility bulls were more highly expressed than those in high fertility bulls. A Bioanalyzer gel was used to confirm the …

Implementation And Impact Of A School-Based Intervention Program To Combat Obesity And Cardiovascular Disease In A Predominantly African-American High School, Brenda White Campbell Jenkins

Theses and Dissertations

This study addressed obesity of youth in a predominantly African-American school and was concerned with the implementation of a CVD intervention program, Project Health Curriculum, for high school students, focusing on early health promotion and support to children at risk of developing adult diseases. A health promotion program was implemented at a high school in Canton, Mississippi, to equip students with information to help reduce risk behaviors that could lead to health problems. This intervention was conducted in the health and physical education classes. Students were given the opportunity to report their knowledge and behaviors by participating in a pretest. …

Evaluation Of Lighter Density Fraction From Dried Distillers Grains With Solubles As A Feedstuff For Ruminants, Jonathan Michael Greene

Theses and Dissertations

The objective of this study was to evaluate the lighter fraction of DDGS as a possible feedstuff for cattle. To accomplish this, a digestion trial was performed to determine nutrient digestibility and crude protein retention by steers consuming the lighter fraction of DDGS. Steers received L, a diet containing the lighter fraction of DDGS, D, a diet containing whole DDGS, or C, a control diet. Steers receiving L consumed less DM than steers receiving D and C. CP retention and digestibilities of DM, OM, ash, NDF, ADF, HC, and energy did not differ among steers in different treatment groups. Fat …

Experimental Investigations On Near-Threshold Events On Fatigue Crack Growth, Yoshinori Yamada

Theses and Dissertations

In the past, the disagreement of near-threshold fatigue-crack growth (FCG) rate data generated from constant Kmax tests, high load ratio (minimum to maximum load) constant R tests, and ΔKeff based data was a mysterious issue. Because of the disagreement, a variety of test or analysis methods were created to correlate FCG rate data. It was suspected that the ASTM threshold test method using load reduction was inducing remote crack closure due to plastically deformed material, which caused elevated thresholds and slower rates than steady-state behavior. The first goal of this study was the development of a test method to eliminate …

Labrat™: Miniature Robot For Students, Researchers, And Hobbyists, Paul Robinette, Ryan Meuth, Ryanne Dolan, Donald C. Wunsch

Electrical and Computer Engineering Faculty Research & Creative Works

LabRat™ is an autonomous, self-contained mobile robot kit with batteries, motors, two bumper whisker sensors, and three infrared proximity sensors that double as channels for "Rat-to-Rat" communication. the vehicle determines its position with an optical sensor that detects movement in both lateral directions. the LabRat™ design is completely open source, including software examples and libraries. LabRat™ is designed to fit inside the body of a computer mouse and has applications in the classroom, the lab and the home. the device has been successfully used in an undergraduate robotics class. © 2009 IEEE.

Synthesis Of Local Thermo-Physical Models Using Genetic Programming, Ying Zhang

USF Tampa Graduate Theses and Dissertations

Local thermodynamic models are practical alternatives to computationally expensive rigorous models that involve implicit computational procedures and often complement them to accelerate computation for real-time optimization and control. Human-centered strategies for development of these models are based on approximation of theoretical models. Genetic Programming (GP) system can extract knowledge from the given data in the form of symbolic expressions. This research describes a fully data driven automatic self-evolving algorithm that builds appropriate approximating formulae for local models using genetic programming. No a-priori information on the type of mixture (ideal/non ideal etc.) or assumptions are necessary.

The approach involves synthesis of …

Filtration Performance Of A Niosh-Approved N95 Filtering Facepiece Respirator With Stapled Head Straps, Daniel E. Medina

USF Tampa Graduate Theses and Dissertations

Certain models of NIOSH-approved filtering facepiece air purifying respirators are manufactured with stapled head straps. Depending on the manufacturer, these head straps may be stapled to the filter media itself. This may cause leakage through the filter media of the respirator, potentially exposing the user to an unacceptable level of contaminant. In this study, monodisperse polystyrene latex (PSL) spheres were generated to challenge four replicates of a N95 single use respirator model made by the same manufacturer.

Nominal particle sizes of the PSL spheres used to challenge the respirators were 0.5, 1, and 2 micrometers in diameter. All respirators were …

Franco Margola's Chamber Works With Guitar: A Guide And Annotated Catalog, Federico Bonacossa

Open Access Dissertations

This essay came about as a result of the desire to study and collect the guitar music of Franco Margola. Franco Margola composed over 450 works for guitar, most of which are unpublished and virtually all of which are unknown to most guitarists. This essay focuses on Margola's chamber works with guitar, which include some of his best compositions. The study contains historical background information, an ample biography, as well as an overview of the currently published works for solo guitar. The main portion of the essay consists of an outline and an annotated catalog of all of Margola's chamber …

Andorra Svcs Inc V. M/T Eos, Et Al

2009 Decisions

USDC for the District of New Jersey

Research In Semantic Web And Information Retrieval: Trust, Sensors, And Search, Krishnaprasad Thirunarayan

Kno.e.sis Publications

No abstract provided.

The Setonian, December 10, 2009, Seton Hall University

2009

No abstract provided.

Minutes Staff Senate Meeting, December 10, 2009, University Of Arkansas, Fayetteville. Staff Senate

Staff Senate Meeting Minutes

No abstract provided.

Connie Palfrey V. Jefferson-Morgan Sch Dist

2009 Decisions

USDC for the Western District of Pennsylvania

Joseph Freebery V. Christopher Coons

2009 Decisions

USDC for the District of Delaware

Absolute Dimensions Of The G7+K7 Eclipsing Binary Star Im Virginis: Discrepancies With Stellar Evolution Models, Juan Carlos Morales, Guillermo Torres, Laurence A. Marschall, William C. Brehm

Physics and Astronomy Faculty Publications

We report extensive spectroscopic and differential photometric BVRI observations of the active, detached, 1.309-day double-lined eclipsing binary IMVir, composed of a G7-type primary and a K7 secondary.With these observations, we derive accurate absolute masses and radii of M1 = 0.981 + 0.012M, M2 = 0.6644 + 0.0048M, R1 = 1.061 + 0.016R, and R2 = 0.681 + 0.013R for the primary and secondary, with relative errors under 2%. The effective temperatures are 5570 + 100 K and 4250 + 130 K, respectively. The significant difference in mass makes this a favorable case for comparison with stellar evolution theory.We find that …

Christ The Redeemer And The Best Of All Possibly Created Worlds: Using Alvin Plantinga's 'O Felix Culpa' Theodicy As A Response To William Rowe's 'Can God Be Free?' And The Underlying Evidential Argument From Evil, P. Roger Turner

Masters Theses

In his "The Problem of Evil and Some Varieties of Atheism," William Rowe famously argues that there are no God justifying goods that we know of that can excuse God's allowing the very many widespread evils and horrors there are in our world. I argue that this forms the backbone of his 2004 volume entitled Can God be Free? in which he posits two further arguments: (1) God must create the best of necessity and is thereby not free and so not praiseworthy, and (2) God cannot create a best world (since there is no best) and so always does …

The Missouri Miner, December 10, 2009

The Missouri Miner Newspaper

No abstract provided.

Spectrum, Volume 26, Issue 11, Sacred Heart University

Newspapers (Obelisk & Spectrum)

Highlights include: The "Mirror" reflects controversial image -- Sacred Heart rolls out the red carpet -- Chapel inspires new winter traditions -- SHU celebrates the holiday season -- Cernera re-elected second time as president of IFCU -- Obama plans to send 30,000 troops to Afghanistan -- The key to surviving finals stress free -- Students abroad return with more than just souvenirs -- Farewell to our graduating seniors, a few last words -- Some SHU students won't be home for the holidays -- Holiday season provides temporary increase in available jobs -- SHU welcomes all faiths -- Be greener than …

Agenda And Reports, Juvenile Welfare Board, December 10, 2009, Juvenile Welfare Board Of Pinellas County

Juvenile Welfare Board Agendas, Minutes, and Historical Audits

Agenda for the December 10, 2009, meeting of the Juvenile Welfare Board. Attached as supplemental files are an agenda and reports to review before the meeting.

Detrital U-Pb Zircon Dating Of Lower Ordovician Syn-Arc-Continent Collision Conglomerates In The Irish Caledonides, Peter D. Clift, Andrew Carter, Amy E. Draut, Hoang Van Long, David M. Chew, Hans A. Schouten

Faculty Publications

The Early Ordovician Grampian Orogeny in the British Isles represents a classic example of collision between an oceanic island arc and a passive continental margin, starting around 480 Ma. The South Mayo Trough in western Ireland preserves a complete and well-dated sedimentary record of arc collision. We sampled sandstones and conglomerates from the Rosroe, Maumtrasna and Derryveeny Formations in order to assess erosion rates and patterns during and after arc collision. U-Pb dating of zircons reveals a provenance dominated by erosion from the upper levels of the Dalradian Supergroup (Southern Highland and Argyll Groups), with up to 20% influx from …

Pepperbox - December 10, 2009, Student Newspaper Of Arcata High School

The Pepperbox

Volume 82, Number 1

City Of Idaho Falls V. Fuhriman Amicus Brief Dckt. 36721

Idaho Supreme Court Records & Briefs, All

No abstract provided.