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Consequences of the Large-Scale Subsidence Rate on the Stably Stratified Atmospheric Boundary Layer Over the Arctic Ocean, as seen in Large-Eddy Simulations

Description: The analysis of surface heat fluxes and sounding profiles from SHEBA indicated possible significant effects of subsidence on the structure of stably-stratified ABLs (Mirocha et al. 2005). In this study the influence of the large-scale subsidence rate on the stably stratified atmospheric boundary layer (ABL) over the Arctic Ocean during clear sky, winter conditions is investigated using a large-eddy simulation model. Simulations are conducted while varying the subsidence rate between 0, 0.001 an… more
Date: January 19, 2006
Creator: Mirocha, J D & Kosovic, B
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ToF-SIMS study of polycrystalline uranium after exposure to deuterium

Description: Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is employed to examine specific features observed on a polycrystalline depleted uranium sample after exposure to high purity D{sub 2} gas. The ToF-SIMS investigation, being the first of its kind on uranium, investigates a site where the deuterated form of uranium hydride (UD{sub 3}) is clearly observed to have broken through the thin, air-formed oxide. Density functional theory calculations have been performed, which confirm the stabilit… more
Date: January 19, 2006
Creator: Morrall, P; Price, D; Nelson, A; Siekhaus, W; Nelson, E; Wu, K J et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Assessing the Effects of Radiation Damage on Ni-base Alloys for the Prometheus Space Reactor System

Description: Ni-base alloys were considered for the Prometheus space reactor pressure vessel with operational parameters of {approx}900 K for 15 years and fluences up to 160 x 10{sup 20} n/cm{sup 2} (E > 0.1 MeV). This paper reviews the effects of irradiation on the behavior of Ni-base alloys and shows that radiation-induced swelling and creep are minor considerations compared to significant embrittlement with neutron ,exposure. While the mechanism responsible for radiation-induced embrittlement is not f… more
Date: January 19, 2006
Creator: Angeliu, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Student filling out a questionnaire]

Description: Photograph of a student filling out a questionnaire at a meeting to discuss whether students should wear school uniforms in Fort Worth Texas. He is wearing a blue and black striped shirt, and there is a green purse in the background.
Date: January 19, 2006
Creator: Castillo, José L.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Implications of the Medicare Prescription Drug Benefit for Dual Eligibles and State Medicaid Programs

Description: This report provides information about the Implications of the Medicare Prescription Drug Benefit for Dual Eligibles and State Medicaid Programs. The report states the changes to eligibility for dual eligibles, changes to the scope of prescription coverage of the drugs.
Date: January 19, 2006
Creator: Tritz, Karen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water Infrastructure Project Earmarks in EPA Appropriations: Trends and Policy Implications

Description: This report discusses appropriations for EPA water infrastructure programs, focusing on congressional earmarks in the account that funds these programs. Information on the programmatic history of EPA involvement in assisting wastewater treatment and drinking water projects is provided in two appendixes.
Date: January 19, 2006
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water Infrastructure Financing: History of EPA Appropriations

Description: This report summarizes, in chronological order, congressional activity to fund items in the State and Tribal Assistance Grants (STAG) account since 1987. In appropriations legislation, funding for EPA (Environmental Protection Agency) wastewater assistance is contained in the measure providing funds for the Department of the Interior, Environment, and Related Agencies.
Date: January 19, 2006
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Refuelable Zinc-air Battery: Alternative Techniques for Zinc and Electrolyte Regeneration

Description: An investigation was conducted into alternative techniques for zinc and electrolyte regeneration and reuse in the refuelable zinc/air battery that was developed by LLNL and previously tested on a moving electric bus using cut wire. Mossy zinc was electrodeposited onto a bipolar array of inclined Ni plates with an energy consumption of 1.8 kWh/kg. Using a H{sub 2}-depolarized anode, zinc was deposited at 0.6 V (0.8 kA/m{sup 2}); the open circuit voltage was 0.45 V. Three types of fuel pellets we… more
Date: January 19, 2006
Creator: Cooper, J F & Krueger, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Plug-in HEVs: A Near-Term Option to Reduce Petroleum Consumption from FY05 Milestone Report

Description: Presented to DOE management staff on September 14, 2005 at the DOE headquarters in Washington DC. Content was updated January 19, 2006 for publication. This presentation addresses plug-in hybrid electric vehicle (PHEV) market and technology issues for research and development efforts.
Date: January 19, 2006
Creator: Markel, T.; O'Keefe, M.; Simpson, A.; Gonder, J. & Brooker, A.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

A comparison of dispersion calculations in bluff body wakes using LES and unsteady RANS

Description: Accurate modeling of the dispersion behavior of sprays or particles is critical for a variety of problems including combustion, urban pollution or release events, and splash and spray transport around heavy vehicles. Bluff body wakes are particularly challenging since these flows are both highly separated and strongly unsteady. Attempting to model the dispersion of droplets or particles interacting with bluff body wakes is even more difficult since small differences in the flow field encountere… more
Date: January 19, 2006
Creator: Paschkewitz, J S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSILICATE FRIT B COMPOSITION FOR PLUTONIUM DISPOSITION

Description: The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) to disposition excess weapons-usable plutonium. A plutonium glass waste form is a leading candidate for immobilization of the plutonium for subsequent disposition in a geologic repository. A reference glass composition (Lanthanide Borosilicate (LaBS) Frit B) was developed during the Plutonium Immobilization Program (PIP) to immobilize plutonium… more
Date: January 19, 2006
Creator: Marra, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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