Access
Partner
UNT Libraries Government Documents Department
840
UNT Libraries
228
UNT Libraries Special Collections
209
Oklahoma Historical Society
126
National Museum of the Pacific War/Admiral Nimitz Foundation
36
Sterling Municipal Library
31
San Antonio Public Library
23
Carl Albert Congressional Research and Studies Center
12
Comanche Public Library
10
Giddings Public Library and Cultural Center
10
46 More
Collection
Office of Scientific & Technical Information Technical Reports
525
Texas Digital Newspaper Program
343
Congressional Research Service Reports
223
Oklahoma Digital Newspaper Program
144
Tocker Foundation Grant
125
UNT Theses and Dissertations
119
University Photography Collection
107
Photographing UNT
107
The Greensheet
88
LGBT Collections
57
89 More
Degree Department
College of Music
20
Department of Psychology
15
School of Library and Information Sciences
13
Department of Biological Sciences
6
Department of English
6
Department of Political Science
6
Department of Geography
5
Department of Technology and Cognition
5
Department of Behavior Analysis
4
Department of Chemistry
4
23 More
Degree Discipline
Degree Level
Country
States
Year
Month
Language
1,725 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,725
next
15 KJ FLASH LAMP, POWER CONDITIONING UNIT DESIGNED FOR SAFTY, RELIABILITY & MANUFACTURABILITY*
A 15kJoule, Flash Lamp Power Conditioning Unit has been successfully designed, developed, and deployed in the National Ignition Facility (NIF) Preamplifier Modules (PAM). The primary design philosophy of this power conditioning unit (PCU) is safety, reliability, and manufacturability. Cost reduction over commercially equivalent systems was also achieved through an easily manufactured packaging design optimized to meet NIF requirements. While still maintaining low cost, the PCU design includes a robust control system, fault diagnostic system, and safety features. The pulsed power design includes 6 PFN modules, each including a dual series injection trigger transformer, that drive a total of 12 flash lamp loads. The lamps are individually triggered via a 20kV pulse produced by a 1kV, MCT switched capacitive discharge unit on the primary side of the trigger transformer. The remote control interface includes an embedded controller that captures flash lamp current wave forms and fault status for each shot. The embedded controller provides the flexibility of remotely adjusting both the main drive voltage from 1.6 to 2.5 kV and the trigger voltage from 0 to 20 kV.
Date:
August 7, 2007
Creator:
James, G.; Merritt, B.; Dreifuerst, G.; Strickland, S. & Tse, E.
Object Type:
Article
System:
The UNT Digital Library
1401 Pacific Gets A Much-Needed Facelift!
News release about renovations on DART's headquarters.
Date:
August 6, 2007
Creator:
unknown
Object Type:
Text
System:
The Portal to Texas History
15th Street News (Midwest City, Okla.), Vol. 37, No. 1, Ed. 1 Friday, August 24, 2007
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
August 24, 2007
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 37, No. 2, Ed. 1 Friday, August 31, 2007
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
August 31, 2007
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
S. 1893/H.R. 976: The Children’s Health Insurance Program Reauthorization Act of 2007
This report tracks the Children's Health Reauthorization of Act of 2007 in both the Senate and the House, while also providing a summary of the bill. The report lists each title of the bill. what they do, and their implications. The report also examines costs by analyzing the immediate outlay and future outlay, starting at 28.6 billion and potentially increasing to 35.2 billion over time.
Date:
August 14, 2007
Creator:
Baumrucker, Evelyne; Fernandez, Bernadette; Grady, April; Herz, Elicia; Peterson, Chris & Rimkunas, Richard
Object Type:
Report
System:
The UNT Digital Library
[2007-2008 UNT Multicultural Center event calendar]
A document advertising the events hosted by the UNT Multicultural Center arranged in a list divided by the months. There are film screenings, programs, celebrations, and conferences.
Date:
August 15, 2007
Creator:
University of North Texas. Multicultural Center.
Object Type:
Text
System:
The UNT Digital Library
[2007-2008 UNT Multicultural Center events calendar]
A document advertising the events hosted by the UNT Multicultural Center arranged in a calendar format for the 2007-2008 school year. It includes national holidays and heritage months that are recognized by the university.
Date:
August 2007
Creator:
University of North Texas. Multicultural Center.
Object Type:
Text
System:
The UNT Digital Library
21st Century Locomotive Technology: Quarterly Technical Status Report 18 DOE/AL68284 TSR18
Nozzle optimization for a new piston bowl design is reported, covering several geometrical features. The influence of fuel sulfur level on PM emissions was investigated.
Date:
August 21, 2007
Creator:
Salasoo, Lembit & Topinka, Jennifer
Object Type:
Report
System:
The UNT Digital Library
['the "a" word' banner]
Photograph of a piece on display in the Faculty Art Gallery show. It is a long vertical banner that lists the phrase "the '[blank]' word" 26 times, replacing the middle with a different letter of the alphabet in order from a-z.
Date:
August 30, 2007
Creator:
Evans, Rebecca
Object Type:
Photograph
System:
The UNT Digital Library
An Abridged Sketch of Extradition To and From the United States
Abridged synopsis of information about treaties and procedures followed by the United States related to extradition requests (originating in the U.S. or from a foreign country) to surrender a person for prosecution or punishment in another country.
Date:
August 6, 2007
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
The Absolute, Relative and Multi-Wavelength Calibration of the Pierre Auger Observatory Fluorescence Detectors
Absolute calibration of the Pierre Auger Observatory fluorescence detectors uses a 375 nm light source at the telescope aperture. This end-to-end technique accounts for the combined effects of all detector components in a single measurement. The relative response has been measured at wavelengths of 320, 337, 355, 380 and 405 nm, defining a spectral response curve which has been normalized to the absolute calibration. Before and after each night of data taking a relative calibration of the phototubes is performed. This relative calibration is used to track both short and long term changes in the detector's response. A cross check of the calibration in some phototubes is performed using an independent laser technique. Overall uncertainties, current results and future plans are discussed.
Date:
August 1, 2007
Creator:
Knapik, R.; Bauleo, P.; Becker, B.R.; Brack, J.; Caruso, R.; Fratte, C.Delle et al.
Object Type:
Article
System:
The UNT Digital Library
Absorption and emission properties of photonic crystals and metamaterials
We study the emission and absorption properties of photonic crystals and metamaterials using Comsol Multiphysics and Ansoft HFSS as simulation tools. We calculate the emission properties of metallic designs using drude model and the results illustrate that an appropriate termination of the surface of the metallic structure can significantly increase the absorption and therefore the thermal emissivity. We investigate the spontaneous emission rate modifications that occur for emitters inside two-dimensional photonic crystals and find the isotropic and directional emissions with respect to different frequencies as we have expected.
Date:
August 3, 2007
Creator:
Peng, Lili
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Accidental Drop of a Carbon Steel/Lead Shipping Cask (HFEF 14) at Low Temperatures
A shielded cask is used to transport radioactive materials between facilities at the Idaho National Laboratory. The cask was fabricated with an outer and inner shell of A36 carbon steel with lead poured in the annular space between the shells to provide radiation shielding. Carbon steel is known to be susceptible to low-temperature brittle fracture under impact loading. This paper will present the analysis results representing postulated transportation accidents during on-site transfers of the cask at subzero temperatures. The accident scenarios were based on a series of cask drops onto a rigid surface from a height of 1.83m (6 ft.) Finite element models of the cask and its contents were solved and post processed using the ABAQUS software. Each model was examined for failure to contain radioactive materials and/or significant loss of radiation shielding. Results of these analyses show that the body of the cask exhibits considerable ruggedness and will remain largely intact after the impact. There will be deformation of the main cask body with localized brittle failure of the cask outer shell and door structure. The cask payload outer waste can remains in the cask but will experience some permanent plastic deformation in each drop. It will not …
Date:
August 1, 2007
Creator:
Hawkes, Brian D. & Nitzel, Michael E.
Object Type:
Article
System:
The UNT Digital Library
Accounting for false negatives in hotspot detection
Hotspot sampling designs are used in environmental sampling to identify the location of one (or more) contiguous regions of elevated contamination. These regions are known as hotspots. The problem of how to calculate the probability of detecting an elliptical hotspot using a rectangular or triangular grid of sampling points was addressed by Singer and Wickman in 1969. This approach presumed that any sample which coincided with a hotspot would detect the hotspot without error. However, for many sampling methodologies, there is a chance that the hotspot will not be detected even though it has been sampled directly--a false negative. We present a mathematical solution and a numerical algorithm which account for false negatives when calculating the probability of detecting hotspots that are circular in shape.
Date:
August 28, 2007
Creator:
Sego, Landon H. & Wilson, John E.
Object Type:
Report
System:
The UNT Digital Library
Acting Ethically: Behavior and the Sustainable Society
One of the most important factors for creating the sustainable society is that the individuals in that society behave in an environmentally sustainable fashion. Yet achieving appropriate behavior in any society is difficult, and the challenge is no less with regards to sustainability. Three of the most important factors for determining behavior have recently been highlighted by psychologists: personal efficacy, social influence, and internal standards. Because these three factors play a prominent role in behavior, it is necessary to examine what role they play in creating sustainability and how they may be utilized to achieve optimal behavior patterns. Ultimately, in order to achieve sustainability solutions must focus on individual action, realistic governmental regulation, and sustained, direct encounters with the natural world. While much time and energy has been spent on social influence and personal efficacy, less has been devoted to internal standards and this area needs more attention if there is to be any realistic attempt at creating proper behavior patterns.
Date:
August 2007
Creator:
Sewell, Patrick
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Active Creation of Instrinsically Localized Vibrations in Uranium Using X-Ray and Neutron Scattering
In real materials, nonlinear forces cause the frequencies of vibrating atoms to depend on amplitude. As a consequence, a large-amplitude fluctuation on the scale of the atom spacing can develop a frequency that does not resonate with the normal modes, causing energy to become trapped in an intrinsically localized mode (ILM)--also called 'discrete breather' or 'lattice soliton'. As temperature is increased, entropy is expected to stabilize increased concentrations of these random hotspots. This mechanism, which spontaneously concentrates energy, has been observed in analogous systems on a larger scale, but direct sightings at the atomic scale have proved difficult. Two challenges have hampered progress: (1) the need to separate ILMs from modes associated with crystal imperfections, and (2) complications that arise at high temperatures, including feature broadening and multiphonon processes. Here we solve both of these problems by actively creating ILMs at low temperatures in {alpha}-uranium using high-energy inelastic x-ray and neutron scattering. The ILM creation excitation occurs at energies ten times higher than conventional lattice excitations, cleanly separating it from modes associated with crystal imperfections. The discovery of this excitation not only proves the existence of ILMs in uranium but also opens up a new route for finding ILMs in …
Date:
August 23, 2007
Creator:
Manley, M.; Alatas, A.; Trouw, F.; Hults, W.; Leu, B.; Lynn, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Activities and Accomplishments in MY 2006/FY 2007
Document details the compliance activities of EPAct-covered state and alternative fuel provider fleets in model year 2006.
Date:
August 1, 2007
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
N-Acylethanolamine Metabolism Interacts with Abscisic Acid Signaling in Arabidopsis thaliana Seedlings
Article discussing N-acylethanolamine metabolism interacting with abscisic acid signaling in Arabidopsis thaliana seedlings.
Date:
August 2007
Creator:
Teaster, Neal D.; Motes, Christy M.; Tang, Yuhong; Wiant, William C.; Cotter, Matthew Q.; Wang, Yuh-Shuh et al.
Object Type:
Article
System:
The UNT Digital Library
Adequate Yearly Progress (AYP): Growth Models Under the No Child Left Behind Act
This report highlights the adequate yearly progress (AYP) concept of the No Child Left Behind Act of 2001. The AYP is the standard of eligibility for grants, of which states must implement AYP policies in all public schools and local education agencies (LEAs). The standard primarily utilizes state test scores to measure the school's eligibility for funding, schools that do not meet AYP standard for two or more consecutive years face consequences. Finally, the report tackles the idea of growth models in reference to the AYP.
Date:
August 2, 2007
Creator:
Riddle, Wayne C.
Object Type:
Report
System:
The UNT Digital Library
Adequate Yearly Progress (AYP): Implementation of the No Child Left Behind Act
This report is intended to provide an overview of the Adequate Yearly Process (AYP) concept and several related issues, a description of the AYP provisions of the No Child Left Behind Act, and an analysis of the implementation of these provisions by the U.S. Department of Education (ED) and the states. It will be updated when major administrative actions are taken by ED, or substantial new data on state implementation become available.
Date:
August 2, 2007
Creator:
Riddle, Wayne C.
Object Type:
Report
System:
The UNT Digital Library
Adjusting Federal Benefits for Geographic Differences in the Cost of Living
This report discusses the indexing provisions in relation to geographic location. Moreover, the report further summarizes how the consumer price index does not cover interarea cost of living comparisons.
Date:
August 20, 2007
Creator:
Cashell, Brian W.
Object Type:
Report
System:
The UNT Digital Library
Adult Client Outcomes: Differences Between Counselors with Education in Child Centered Play Therapy Versus Counselors Without Education in Child-Centered Play Therapy
Child-centered play therapists are taught unique relationship building approaches and therapeutic methods to utilize when working with children. The purpose of this study was to determine if adult clients counseled by child-centered play therapists would demonstrate greater positive therapeutic outcomes than adult clients who were counseled by non-educated child-centered play therapists. This study also attempted to determine if the play therapists' clients would show greater, significant improvement in any particular areas of client distress (i.e., depression/anxiety, relationship issues), more so than the clients of the non-play therapists. Archival data from an assessment, The Adult Self-Report Inventory (ASR), was gathered to measure reported pre and post-test client symptomology. This study utilized a 2X2 repeated measure ANOVA design to analyze the impact of counselors who were educated in child-centered play therapy who saw adult clients, versus their non-play therapy counterparts who saw adult clients. Before treatment pre-test and after treatment post-test administration was collected for use in the analysis. The population consisted of 60 adult clients seeking counseling services at a major university in the southwest. All clients were seen by Master's practicum students for ten sessions. The clients were divided into two groups - 30 were seen by play therapists, 30 …
Date:
August 2007
Creator:
Rees, Brian Christopher
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Adult Learner Satisfaction with Web-Based Non-Credit Workforce Training.
Web-based training has become a billion dollar industry in the United States. Electronically aided learning is viewed by many companies as a cost-effective way to deliver the up-to-date, up-gradable job-related training that the industry is demanding. This study sought to examine the relationship between learners’ satisfaction with online training as it relates to learner readiness, online features, and course relevance. The population for this study was adults seeking non-credit workforce training, specifically library professionals who were involved in web-based training through the Lifelong Education @ Desktop (LE@D) program at the University of North Texas, Denton. Online methods of training are used most extensively in the area of mandatory or compliance training, in which 35 % of training is conducted mostly or completely online. The total potential library population using LE@D product to date is approximately 4,000 unique enrollments nationwide. Participants were selected from a complete list of unique LE@D users over a 90-day period. A survey instrument was sent via e-mail to 514 enrollees who had completed a recent LE@D online training course. In total, 254 participants responded to the survey. Bivariate analysis of the variables using the Pearson product-moment correlation was used to determine the occurrence and strength of …
Date:
August 2007
Creator:
Morgan, Pamela Cope
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Advance Earned Income Tax Credit: Low Use and Small Dollars Paid Impede IRS's Efforts to Reduce High Noncompliance
A letter report issued by the Government Accountability Office with an abstract that begins "The Advance Earned Income Tax Credit (AEITC) allows individuals to receive a portion of the Earned Income Tax Credit (EITC) in their paychecks, instead of receiving all of it when filing their year-end tax return. Limited research has been conducted on the AEITC since GAO last examined it in the early 1990s. GAO was asked to determine (1) how many individuals received the AEITC compared with the EITC in tax years 2002 through 2004, what actions, if any, have been taken to increase use, and the potential for increases in use in the future; (2) the extent of noncompliance, if any, associated with the AEITC; and (3) how well the Internal Revenue Service's (IRS) procedures address the areas of noncompliance. To address these questions, GAO analyzed Forms W-2 and tax return data and interviewed IRS and Social Security Administration (SSA) officials."
Date:
August 10, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library