Digital Commons Network^™

Fatigue Behavior Of An Advanced Sic/Sic Composite At Elevated Temperature In Air And In Steam, Devon T. Christensen

Theses and Dissertations

The fatigue behavior of an advanced Silicon Carbide/Silicon Carbide (SiC/SiC) ceramic matrix composite (CMC) was investigated at 1200 ˚C in laboratory air and in steam environments. The composite consisted of a SiC matrix reinforced with Boron Nitride (BN) coated Hi-Nicalon fibers woven into eight-harness-satin (8HS) weave plies. Tensile stress-strain behavior and tensile properties were also evaluated at 1200 ˚C. Tension-tension fatigue tests were conducted in both laboratory air and in steam at 1200 ˚C at frequencies of 0.1 Hz, 1.0 Hz, and 10 Hz. The tension-tension fatigue tests had a ratio of minimum stress to maximum stress of R = …

Laser-Induced Fluorescence And Synthetic Jet Fuel Analysis In The Ultra Compact Combustor, Aaron C. Drenth

Theses and Dissertations

The Ultra-Compact Combustor (UCC) is currently under investigation at the Air Force Institute of Technology (AFIT) and Air Force Research Laboratory’s Propulsion Directorate. The combustor is a small-scale, axi-symmetric, atmospheric pressure, laboratory combustor with an outer circumferential cavity in which the flame is stabilized by a highly accelerated swirled flow. UCCs will enable aero gas turbine reheat cycle engines and significantly shorten conventional aero gas turbine engines. The experiments of this work utilized the AFIT small-scale combustion diagnostics facility, investigating a sector model of the UCC. The research objectives were to perform an addition to the COAL lab laser diagnostic …

Flow Measurements Using Particle Image Velocimetry In The Ultra Compact Combustor, Levi M. Thomas

Theses and Dissertations

Velocity measurements were performed using the Particle Image Velocimetry (PIV) technique on the Ultra Compact Combustor (UCC) test rig at the Air Force Institute of Technology (AFIT). Velocity patterns and time-averaged turbulence statistics were calculated for data taken with the UCC burning hydrogen fuel in the straight cavity vane and curved cavity vane configurations. The equivalence ratio was varied from 0.7 to 1.5, while the ratio of cavity air to main air was varied from 5% to 20% in testing performed on the straight vane configuration. Spanwise velocity was observed to decrease linearly with distance from the cavity vane over …

Flow Visualization Study Of Passive Flow Control Features On A Film-Cooled Turbine Blade Leading Edge, Daniel R. Carroll

Theses and Dissertations

A flow visualization study was conducted on a model of a film-cooled turbine blade leading edge in a closed-loop water channel at Re_D = 30k. The model consisted of an 8.89 cm diameter half-cylinder with flat afterbody joined at the ninety degree point. A single radial coolant hole (d_c / D = 0.054) drilled 21.5° from the stagnation line, angled 20° to the surface and 90° to the flow direction generated a coolant jet transverse to the freestream. Water channel testing assessed the hydrodynamic effects of 16 passive flow control features, to include a variety of …

Heat And Current Propagation In Buffered Superconducting And Hyper-Conducting Wire, Jesse L. Lynn

Theses and Dissertations

This research models and analyzes the distribution of heat and current in a buffered superconducting or hyper-conducting wire that shows potential for use in different capacities in multiple Air Force systems including the Active Denial System. The thesis includes a brief background of the reaction-diffusion system of partial differential equations provided by AFRL/RZPG and development of the numerical scheme. It then explores solutions to the model. These solutions indicate some of the various heat-related failures that may be observed in such a wire. The nature of the solutions observed depends on the characteristics of the wire, operating temperature and efficiency …

Analysis Of Expedient Field Decontamination Methods For The Xmx/2l-Mil High-Volume Aerosol Sampler, Brandon C. Laroche

Theses and Dissertations

The XMX/2L-MIL is a high volume air sampler used by the Air Force Bioenvironmental Engineering community to collect biological aerosols. Without a verified decontamination technique, however, the XMX cannot be used effectively. The objective of this study was to evaluate several proposed methods for expedient field decontamination of the XMX. This study centered on the inactivation of Bacillus atrophaeus spores and vegetative Erwinia herbicola organisms from the XMX inner canister. The goals in this investigation were twofold: 1) to verify the antimicrobial efficacy of a 10% bleach solution and 2) to determine if wiping the components with a bleach-soaked paper …

A Program Evaluation Of A Literacy Initiative For Students With Moderate To Severe Disabilities, Carrie F. De La Cruz

USF Tampa Graduate Theses and Dissertations

Recently the National Reading Panel concluded that systematic and direct instruction in phonological awareness, phonics, fluency, vocabulary, and comprehension that is informed by ongoing assessments of student progress results in positive student achievement (NICHHD, 2002). For students with moderate to severe disabilities and students with autism, reading instruction has historically focused on functional sight words. Unfortunately, very little research exists that has examined how the literacy achievement of students with moderate to severe disabilities can be impacted by a more comprehensive, data-driven instructional model.

A special education program that serves students with moderate to severe disabilities and students with autism …

Governance In Motion: Service Provision And Child Welfare Outcomes In A Performance-Based, Managed Care Contracting Environment, Bowen Mcbeath, William Meezan

School of Social Work Faculty Publications and Presentations

Examining the linkage between service provision and client outcomes is important in performance-based human service environments. Since most performance initiatives reward agencies for improving client outcomes rather than providing specific services, managers may have incentives to streamline workers’ efforts and reduce resources devoted to services considered nonessential. This article uses data from a performance-based child welfare initiative to examine the relationship between child permanency outcomes, the services provided by caseworkers, and the environment surrounding frontline service provision. Findings indicate that greater service efforts are required to reunify children with parents than to reach other outcomes, including adoption and placement with …

The Daily Egyptian, December 08, 2009, Daily Egyptian Staff

December 2009

No abstract provided.

The Bates Student - Volume 139 Number 08 - December 8, 2009, Bates College

The Bates Student

No abstract provided.

The Effects Of First-Generation Status And Race/Ethnicity On Students' Adjustment To College, Cornelia T. Splichal

Open Access Dissertations

Little is known about the college adjustment of first-generation students, particularly those from various racial/ethnic groups. This study sought to describe the college adjustment of first-generation students from three different racial/ethnic backgrounds (White/non-Hispanic, Black and Hispanic) and to determine whether generational status and race/ethnicity jointly or separately affect college adjustment as measured by responses to the Student Adaptation to College Questionnaire (SACQ). A sample of 418 students (208 first-generation, 210 non-first-generation; 140 White, 138 Black, and 140 Hispanic) was drawn from a population of 4,718 degree-seeking, self-identified undergraduates at a research university in the Southeast. A 2 X 3 factorial …

Ex. 279-Us-401, Dudley W. Reiser

Hedden-Nicely Collection, All

Curriculum Vitae of Dudley W. Reiser

Ex. 279-Us-401, Dudley W. Reiser

In re Klamath River (Klamath Tribe)

Curriculum Vitae of Dudley W. Reiser

Electrochemical Deposition Method Utilizing Microdroplets Of Solution, William B. Knowlton, Dale D. Russell

Boise State Patents

A method of electrochemical deposition uses microdroplets of electrolytic solution over a targeted small circuit element. Only the targeted circuit element is electrically biased so that deposition occurs on the surface of that element, underneath the microdroplet, and nowhere else unless it is under other microdroplet(s). The invented method achieves extremely accurate and selective electrochemical deposition with a tiny amount of electrolytic solution, compared to conventional submersive and/or immersive methods, and eliminates the need for masking or etching, reducing the costs of manufacture and amount of waste electrolytic solution produced.

12-08-2009 Lt. Governor Jari Askins Visits Swosu Campus, Southwestern Oklahoma State University

THE BARK ARCHIVE 2009

Braving icy roads, Lt. Gov. Jari Askins still showed up at Southwestern Oklahoma State University on December 8 to speak to SWOSU students and employees and the general public.

Archive-It @ Georgetown Law: What We're Doing & What We Wish We Were Doing, Roger Skalbeck, Sarah Rhodes

Digital Preservation Presentations

No abstract provided.

December 8, 2009, University Of Mississippi. Faculty Senate

Meeting Minutes

Minutes for the December 8, 2009 meeting of the University of Mississippi Faculty Senate.

12-08-2009 (The Liberty Champion Volume 27, Issue 11)

2009 -- 2010

No abstract provided.

Goosetown: Reconstructing An Akron Neighborhood, Joyce Dyer

University of Akron Press Publications

Can the past be discovered? Are memories only someone else’s recollections? Can we draw out the shadows deep within the crevices of the brain?

Goosetown, once a physical location in Akron, Ohio, and a place in Joyce Dyer’s childhood world, still lingers on the edge of the author’s perception. Dyer lived her first five years, the most significant five, some would say, in Goosetown, and had dismissed them as irrelevant because she couldn’t recover the images.

Years later, accompanied by her uncle, the self-proclaimed “Mayor of Goosetown,” the odd couple travels to unearth the lost years. Together they search for …

Flyer News, Vol. 57, No. 19 (Dec. 8, 2009), University Of Dayton

Flyer News

Student-run newspaper of the University of Dayton.

December 8, 2009: Are Religious Politics “Undemocratic”?, Bruce Ledewitz

Hallowed Secularism

Blog post, “Are Religious Politics “Undemocratic”?“ discusses politics, theology and the law in relation to religion and public life in the democratic United States of America.

Spartan Daily December 8, 2009, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 133, Issue 49

The Afghan War And The Current Situation In Pakistan - Rubina Jamil In Nyc Dec 17, Celia Patricia Vera, Michael Zweig

2010 How Class Works Conference

Email correspondence

25 Year Club: 28th Annual Gala, Western Michigan University

25 Year Club

25 Year Club: 28th Annual Gala

December 8, 2009

• New Inductees
• Posthumous Inductees
• Members
• Retirees

Ua12/2/1 College Heights Herald, Vol. 85, No. 24, Wku Student Affairs

WKU Administration Documents

WKU campus newspaper reporting campus, athletic and Bowling Green, Kentucky news. Articles:

• Waggoner, Tabitha. Police Advise Caution After Murder – Martha Richmond aka Bettina
• Simpson, Mandy. Greater Expectations – ACT Admissions Standards
• Hicks, Billy. Bowling Green City Commissioners OK Needed for Projects – Downtown Redevelopment, Gordon Ford College of Business, Housing & Residence Life, WKU Police, Block 12
• Wilson, Laurel. Officials Release Plans for Student Apartments – Downtown Redevelopment, Housing & Residence Life, Student Life Foundation
• Thomas, Julia. A Thousand Words – Chris Manley, Amanda Manley, Traumatic Brain Injury
• Bilby, Tara. Student Government Association to Dine with Lawmakers – Dine …

William Houston V. Easton Area School Dist

2009 Decisions

USDC for the Eastern District of Pennsylvania

Ua37/29 Gary Ransdell - Fed. Reserve Board - Ben Bernanke Q&A Session, St. Louis Federal Reserve Board

WKU Administration Documents

Email sent to members of the St. Louis Federal Reserve Board regarding the question and answer session following Bernanke's speech at the Washington Economic Club.

Egoviz – A Mobile Based Spatial Interaction System, Keith Gardiner, Junjun Yin, James Carswell

Articles

This paper describes research carried out in the area of mobile spatial interaction and the development of a mobile (i.e. on-device) version of a simulated web-based 2D directional query processor. The TellMe application integrates location (from GPS, GSM, WiFi) and orientation (from digital compass/tilt sensors) sensing technologies into an enhanced spatial query processing module capable of exploiting a mobile device’s position and orientation for querying real-world 3D spatial datasets. This paper outlines the technique used to combine these technologies and the architecture needed to deploy them on a sensor enabled smartphone (i.e. Nokia 6210 Navigator). With all these sensor technologies …

Entrenamiento Para Familias Hispanas-Hispanic Family Training, Center For Persons With Disabilities

Blog Posts

No abstract provided.

Budget And Faculty Welfare Committee Minutes, December 8, 2009, Utah State University

Budget & Faculty Welfare Committee

• Responses to questions from President
• Regular budget updates