UNT Libraries Government Documents Department - 798 Matching Results

Search Results

Results: 1 - 24 next
open access

15 KJ FLASH LAMP, POWER CONDITIONING UNIT DESIGNED FOR SAFTY, RELIABILITY & MANUFACTURABILITY*

Description: 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… more
Date: August 7, 2007
Creator: James, G.; Merritt, B.; Dreifuerst, G.; Strickland, S. & Tse, E.
Item Type: Refine your search to only Article
open access

S. 1893/H.R. 976: The Children’s Health Insurance Program Reauthorization Act of 2007

Description: 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
Item Type: Refine your search to only Report
open access

The Absolute, Relative and Multi-Wavelength Calibration of the Pierre Auger Observatory Fluorescence Detectors

Description: 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 photo… more
Date: August 1, 2007
Creator: Knapik, R.; Bauleo, P.; Becker, B.R.; Brack, J.; Caruso, R.; Fratte, C.Delle et al.
Item Type: Refine your search to only Article
open access

Absorption and emission properties of photonic crystals and metamaterials

Description: 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-… more
Date: August 3, 2007
Creator: Peng, Lili
Item Type: Refine your search to only Thesis or Dissertation
open access

Accidental Drop of a Carbon Steel/Lead Shipping Cask (HFEF 14) at Low Temperatures

Description: 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 … more
Date: August 1, 2007
Creator: Hawkes, Brian D. & Nitzel, Michael E.
Item Type: Refine your search to only Article
open access

Accounting for false negatives in hotspot detection

Description: 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 … more
Date: August 28, 2007
Creator: Sego, Landon H. & Wilson, John E.
Item Type: Refine your search to only Report
open access

Active Creation of Instrinsically Localized Vibrations in Uranium Using X-Ray and Neutron Scattering

Description: 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 … more
Date: August 23, 2007
Creator: Manley, M.; Alatas, A.; Trouw, F.; Hults, W.; Leu, B.; Lynn, J. et al.
Item Type: Refine your search to only Article
open access

Adequate Yearly Progress (AYP): Growth Models Under the No Child Left Behind Act

Description: 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 m… more
Date: August 2, 2007
Creator: Riddle, Wayne C.
Item Type: Refine your search to only Report
open access

Adequate Yearly Progress (AYP): Implementation of the No Child Left Behind Act

Description: 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.
Item Type: Refine your search to only Report
open access

Advance Earned Income Tax Credit: Low Use and Small Dollars Paid Impede IRS's Efforts to Reduce High Noncompliance

Description: 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… more
Date: August 10, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

Advanced Modeling of Renewable Energy Market Dynamics: May 2006

Description: This report documents a year-long academic project, presenting selected techniques for analysis of market growth, penetration, and forecasting applicable to renewable energy technologies. Existing mathematical models were modified to incorporate the effects of fiscal policies and were evaluated using available data. The modifications were made based on research and classification of current mathematical models used for predicting market penetration. An analysis of the results was carried out, b… more
Date: August 1, 2007
Creator: Evans, M.; Little, R.; Lloyd, K.; Malikov, G.; Passolt, G.; Arent, D. et al.
Item Type: Refine your search to only Report
open access

Advantages and Disadvantages of Physiological Assessment For Next Generation Control Room Design

Description: Abstract - We propose using non-obtrusive physiological assessment (e.g., eye tracking,) to assess human information processing errors (e.g., loss of vigilance) and limitations (e.g., workload) for advanced energy systems early in the design process. This physiological approach for assessing risk will circumvent many limitations of current risk methodologies such as subjective rating (e.g., rater’s biases) and performance modeling (e.g., risk assessment is scripted and is based upon the individ… more
Date: August 1, 2007
Creator: Tran, Tuan Q.; Boring, Ronald L.; Dudenhoeffer, Donald D.; Hallbert, Bruce P; Keller, M. David & Anderson, Tessa M.
Item Type: Refine your search to only Article
open access

Afghanistan: Post-War Governance, Security, and U.S. Policy

Description: This report tracks the historical governance of Afghanistan and explains how this has caused instability in the country in the present. The information consolidated in the report displays various weapons trade deals between the U.S. and parts of Afghanistan and the Pakistan government, while also including information on how and why the Soviet Union was attempting to gain power in the region.
Date: August 9, 2007
Creator: Katzman, Kenneth
Item Type: Refine your search to only Report
open access

Agricultural Bio-Fueled Generation of Electricity and Development of Durable and Efficent NOx Reduction

Description: The objective of this project was to define the scope and cost of a technology research and development program that will demonstrate the feasibility of using an off-the-shelf, unmodified, large bore diesel powered generator in a grid-connected application, utilizing various blends of BioDiesel as fuel. Furthermore, the objective of project was to develop an emissions control device that uses a catalytic process and BioDiesel (without the presence of Ammonia or Urea)to reduce NOx and other poll… more
Date: August 8, 2007
Creator: Boyd, Rodney
Item Type: Refine your search to only Report
open access

Agricultural Credit: Farm Bill Issues

Description: This report discusses agricultural credit, which makes or guarantees loans to farmers who cannot qualify at other lenders, and the Farm Credit System (FCS), which is a network of borrower-owned lending institutions operating as a government-sponsored enterprise.
Date: August 3, 2007
Creator: Monke, Jim
Item Type: Refine your search to only Report
Back to Top of Screen