572 Matching Results

Search Results

Results: 1 - 24 next
open access

SATURATED ZONE FLOW AND TRANSPORT MODEL ABSTRACTION

Description: The purpose of the saturated zone (SZ) flow and transport model abstraction task is to provide radionuclide-transport simulation results for use in the total system performance assessment (TSPA) for license application (LA) calculations. This task includes assessment of uncertainty in parameters that pertain to both groundwater flow and radionuclide transport in the models used for this purpose. This model report documents the following: (1) The SZ transport abstraction model, which consists of… more
Date: October 27, 2004
Creator: ARNOLD, B.W.
Partner: UNT Libraries Government Documents Department
open access

Government Activities to Protect the Electric Grid

Description: This report provides a description of initiatives within the Federal Energy Regulatory Commission and the Departments of Energy, Homeland Security, and Defense to protect the physical transmission infrastructure.
Date: October 20, 2004
Creator: Abel, Amy
Partner: UNT Libraries Government Documents Department
open access

Report of the APS Neutrino Study Reactor Working Group

Description: The worldwide program to understand neutrino oscillations and determine the neutrino mixing parameters, CP violating effects, and mass hierarchy will require a broad combination of measurements. The group believes that a key element of this future neutrino program is a multi-detector neutrino experiment (with baselines of {approx} 200 m and {approx} 1.5 km) with a sensitivity of sin{sup 2} 2{theta}{sub 13} = 0.01. In addition to oscillation physics, the reactor experiment may provide interestin… more
Date: October 28, 2004
Creator: Abouzaid, E.; Anderson, K.; Barenboim, G.; Berger, B.; Blucher, E.; Bolton, T. et al.
Partner: UNT Libraries Government Documents Department
open access

Atmospheric Radiation Measurement Program Science Plan

Description: The Atmospheric Radiation Measurement (ARM) Program has matured into one of the key programs in the U.S. Climate Change Science Program. The ARM Program has achieved considerable scientific success in a broad range of activities, including site and instrument development, atmospheric radiative transfer, aerosol science, determination of cloud properties, cloud modeling, and cloud parameterization testing and development. The focus of ARM science has naturally shifted during the last few years t… more
Date: October 31, 2004
Creator: Ackerman, T
Partner: UNT Libraries Government Documents Department
open access

Atmospheric Radiation Measurement Program Science Plan Current Status and Future Directions of the ARM Science Program

Description: The Atmospheric Radiation Measurement (ARM) Program has matured into one of the key programs in the U.S. Climate Change Science Program. The ARM Program has achieved considerable scientific success in a broad range of activities, including site and instrument development, atmospheric radiative transfer, aerosol science, determination of cloud properties, cloud modeling, and cloud parameterization testing and development. The focus of ARM science has naturally shifted during the last few years t… more
Date: October 30, 2004
Creator: Ackerman, TP; Genio, AD Del; Ellingson, RG; Ferrare, RA; Klein, SA; McFarquhar, GM et al.
Partner: UNT Libraries Government Documents Department
open access

Exotic physics: search for scalar leptoquark pairs decaying to nu nu-bar qq-bar in p anti-p collisions at s**(1/2) = 1.96 tev

Description: We report on a search for the pair production of scalar leptoquarks, LQ, using 191 pb{sup -1} of proton-antiproton collision data recorded by the CDF experiment during Run II of the Tevatron. The leptoquarks are sought via their decay into a neutrino and quark yielding missing transverse energy and several jets of large transverse energy. No evidence for leptoquark production is observed, and limits are set on {sigma}(p{bar p} {yields} LQ{ovr OQ}X {yields} v{bar v}q{bar q}X). Using a next-to-le… more
Date: October 25, 2004
Creator: Acosta, D.
Partner: UNT Libraries Government Documents Department
open access

Top physics: measurement of the tt-bar production cross section in pp-bar collisions at s**(1/2) = 1.96 tev using dilepton event

Description: We report a measurement of the t{bar t} production cross section using dilepton events with jets and missing transverse energy in p{bar p} collisions at a center-of-mass energy of 1.96 TeV. Using a 197 {+-} 12 pb{sup -1} data sample recorded by the upgraded Collider Detector at Fermilab, we use two complementary techniques to select candidate events. We compare the number of observed events and selected kinematical distributions with the predictions of the standard model and find good agreement… more
Date: October 14, 2004
Creator: Acosta, D.
Partner: UNT Libraries Government Documents Department
open access

High efficiency, radiation-hard solar cells

Description: The direct gap of the In{sub 1-x}Ga{sub x}N alloy system extends continuously from InN (0.7 eV, in the near IR) to GaN (3.4 eV, in the mid-ultraviolet). This opens the intriguing possibility of using this single ternary alloy system in single or multi-junction (MJ) solar cells of the type used for space-based surveillance satellites. To evaluate the suitability of In{sub 1-x}Ga{sub x}N as a material for space applications, high quality thin films were grown with molecular beam epitaxy and exten… more
Date: October 22, 2004
Creator: Ager, J. W., III & Walukiewicz, W.
Partner: UNT Libraries Government Documents Department
open access

Trade and the Americas

Description: At the 1994 Summit of the Americas, 34 hemispheric democracies agreed to create a “Free Trade Area of the Americas” (FTAA) no later than 2005. If created, the FTAA would be a $13 trillion market of 34 countries (Cuba is not included) and nearly 800 million people. The population alone would make it the largest free trade area in the world with nearly twice the 450 million population of the now 25-nation European Union. In the nearly ten years following the 1994 summit, Western Hemisphere trade … more
Date: October 19, 2004
Creator: Ahearn, Raymond J.
Partner: UNT Libraries Government Documents Department
open access

Advanced Computational Model for Three-Phase Slurry Reactors Progress Report: October 2004

Description: In this project, an Eulerian-Lagrangian formulation for analyzing three-phase slurry flows in a bubble column was developed. The approach used an Eulerian analysis of liquid flows in the bubble column, and made use of the Lagrangian trajectory analysis for the bubbles and particle motions. The bubble-bubble and particle-particle collisions are included the model. The model predictions are compared with the experimental data and good agreement was found An experimental setup for studying two-dim… more
Date: October 2004
Creator: Ahmadi, Goodarz
Partner: UNT Libraries Government Documents Department
open access

Proposal for a Silicon Vertex Tracker (Vtx) for the Phenix Experiment

Description: We propose the construction of a Silicon Vertex Tracker (VTX) for the PHENIX experiment at RHIC. The VTX will substantially enhance the physics capabilities of the PHENIX central arm spectrometers. Our prime motivation is to provide precision measurements of heavy-quark production (charm and beauty) in A+A, p(d)+A, and polarized p+p collisions. These are key measurements for the future RHIC program, both for the heavy ion program as it moves from the discovery phase towards detailed investigati… more
Date: October 2004
Creator: Akiba, Y.
Partner: UNT Libraries Government Documents Department
open access

Development of a Novel Catalyst for NO Decomposition

Description: Air pollution arising from the emission of nitrogen oxides as a result of combustion taking place in boilers, furnaces and engines, has increasingly been recognized as a problem. New methods to remove NO{sub x} emissions significantly and economically must be developed. The current technology for post-combustion removal of NO is the selective catalytic reduction (SCR) of NO by ammonia or possibly by a hydrocarbon such as methane. The catalytic decomposition of NO to give N{sub 2} will be prefer… more
Date: October 22, 2004
Creator: Akyurtlu, Ates & Akyurtlu, Jale F.
Partner: UNT Libraries Government Documents Department
open access

Modeling the Transport and Chemical Evolution of Onshore and Offshore Emissions and their Impact on Local and Regional Air Quality Using a Variable-Grid-Resolution Air Quality Model

Description: This semiannual report summarizes the research performed from 17 April through 16 October 2004. Major portions of the research in several of the project's current eight tasks have been completed, and the results obtained are briefly presented. We have successfully developed the meteorological inputs using the best possible modeling configurations, resulting in improved representation of atmospheric processes. Ingestion of satellite-derived sea surface temperatures in conjunction with the use of… more
Date: October 16, 2004
Creator: Alapaty, Kiran
Partner: UNT Libraries Government Documents Department
open access

Reactive Multiphase Behavior of CO2 in Saline Aquifers Beneath the Colorado Plateau

Description: Field and laboratory investigations of naturally occurring CO{sub 2}-reservoirs are being conducted to determine the characteristics of potential seal and reservoir units and the extent of the interactions that occur between the host rocks and the CO{sub 2} charged fluids. Efforts have focused on the Farnham Dome field, located in central Utah, the Springerville-St. Johns field in Arizona and New Mexico, and most recently, the Crystal Geyser-Salt Wash graben areas with their CO{sub 2}-charged g… more
Date: October 25, 2004
Creator: Allis, R. G.; Moore, J. & White, S.
Partner: UNT Libraries Government Documents Department
open access

Guide to Individuals Seated on the Senate Dais

Description: This report briefly discusses where various individuals are seated in the Senate chamber.
Date: October 20, 2004
Creator: Amer, Mildred
Partner: UNT Libraries Government Documents Department
open access

Membership of the 108th Congress: A Profile

Description: This report provides a profile of the 108th congress members by descriptive metrics including party affiliation, age, occupation, education, congressional service, religion, sex, ethnicity, immigration, military status, and marital and family status.
Date: October 25, 2004
Creator: Amer, Mildred L.
Partner: UNT Libraries Government Documents Department
open access

Stress Corrosion Cracking Model for High Level Radioactive-Waste Packages

Description: A stress corrosion cracking (SCC) model has been adapted for performance prediction of high level radioactive-waste packages to be emplaced in the proposed Yucca Mountain repository. For waste packages of the proposed Yucca Mountain repository, the outer barrier material is the highly corrosion-resistant Alloy UNS-N06022 (Alloy 22), the environment is represented by aqueous brine films present on the surface of the waste package from dripping or deliquescence of soluble salts present in any sur… more
Date: October 5, 2004
Creator: Andresen, P.; Gordon, G. & Lu, S.
Partner: UNT Libraries Government Documents Department
open access

FY 2004 Infrared Photonics Final Report

Description: Research done by the Infrared Photonics team at PNNL is focused on developing miniaturized integrated optics for the MWIR and LWIR by exploiting the unique optical and material properties of chalcogenide glass. PNNL has developed thin film deposition capabilities, direct-laser writing techniques, IR photonic device demonstration, holographic optical element design and fabrication, photonic device modeling, and advanced optical metrology - all specific to chalcogenide glass. Chalcogenide infrare… more
Date: October 1, 2004
Creator: Anheier, Norman C.; Allen, Paul J.; Keller, Paul E.; Bennett, Wendy D.; Martin, Peter M.; Johnson, Bradley R. et al.
Partner: UNT Libraries Government Documents Department
open access

Ultra-Intense Laser Pulse Propagation in Gas and Plasma

Description: It is proposed here to continue their program in the development of theories and models capable of describing the varied phenomena expected to influence the propagation of ultra-intense, ultra-short laser pulses with particular emphasis on guided propagation. This program builds upon expertise already developed over the years through collaborations with the NSF funded experimental effort lead by Professor Howard Milchberg here at Maryland, and in addition the research group at the Ecole Polytec… more
Date: October 26, 2004
Creator: Antonsen, T. M.
Partner: UNT Libraries Government Documents Department
open access

Classroom HVAC: Improving ventilation and saving energy -- field study plan

Description: The primary goals of this research effort are to develop, evaluate, and demonstrate a very practical HVAC system for classrooms that consistently provides classrooms (CRs) with the quantity of ventilation in current minimum standards, while saving energy, and reducing HVAC-related noise levels. This research is motivated by the public benefits of energy efficiency, evidence that many CRs are under-ventilated, and public concerns about indoor environmental quality in CRs. This document provides … more
Date: October 14, 2004
Creator: Apte, Michael G.; Faulkner, David; Hodgson, Alfred T. & Sullivan, Douglas P.
Partner: UNT Libraries Government Documents Department
open access

Europe and Counterterrorism: Strengthening Police and Judicial Cooperation

Description: The September 11, 2001 terrorist attacks on the United States gave new momentum to European Union (EU) initiatives to combat terrorism and other crossborder crimes such as drug trafficking, human trafficking, and financial fraud. For many years, EU efforts to address such challenges were hampered by national sovereignty concerns, insufficient resources, and a lack of trust among law enforcement agencies. However, the terrorist attacks and the subsequent revelation of Al Qaeda cells in Europe ch… more
Date: October 15, 2004
Creator: Archick, Kristin
Partner: UNT Libraries Government Documents Department
Back to Top of Screen