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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 1, 2004
Creator: AKIBA,Y.
Partner: UNT Libraries Government Documents Department
open access

WasteWater Treatment And Heavy Metals Removal In The A-01 Constructed Wetland 2003 Report

Description: The A-01 wetland treatment system (WTS) was designed to remove metals from the effluent at the A-01 NPDES outfall. The purpose of research conducted during 2003 was to evaluate (1) the ability of the A-01 wetland treatment system to remediate waste water, (2) retention of the removed contaminants in wetland sediment, and (3) the potential remobilization of these contaminants from the sediment into the water column. Surface water and sediment samples were collected and analyzed in this study.
Date: August 1, 2004
Creator: ANNA, KNOX
Partner: UNT Libraries Government Documents Department
open access

Power Technologies Data Book 2003 Edition

Description: The 2003 edition of this report, prepared by NREL's Energy Analysis Office, includes up-to-date information on power technologies, including complete technology profiles. The data book also contains charts on electricity restructuring, power technology forecasts and comparisons, electricity supply, electricity capability, electricity generation, electricity demand, prices, economic indicators, environmental indicators, conversion factors, and selected congressional questions and answers.
Date: June 1, 2004
Creator: Aabakken, J.
Partner: UNT Libraries Government Documents Department
open access

A Novel High-Heat Transfer Low-NO{sub x} Natural Gas Combustion System. Final Technical Report

Description: A novel high-heat transfer low NO(sub x) natural gas combustion system. The objectives of this program are to research, develop, test, and commercialize a novel high-heat transfer low-NO{sub x} natural gas combustion system for oxygen-, oxygen-enriched air, and air-fired furnaces. This technology will improve the process efficiency (productivity and product quality) and the energy efficiency of high-temperature industrial furnaces by at least 20%. GTI's high-heat transfer burner has application… more
Date: January 1, 2004
Creator: Abbasi, H.
Partner: UNT Libraries Government Documents Department
open access

Colloid-Facilitated Plutonium Transport in Saturated Alluvium

Description: Natural groundwater colloids have been recognized as possible agents for enhancing the subsurface transport of strongly-sorbing radionuclides. To evaluate this mechanism, packed-bed column experiments were conducted comparing the simultaneous transport of dissolved plutonium (Pu), Pu sorbed onto natural colloids, 190-nm and 500-nm diameter fluorescent CML microspheres, and tritiated water in saturated alluvium. Experiments were conducted in two columns having slightly different porosities at tw… more
Date: June 1, 2004
Creator: Abdel-Fattah, A.; Reimus, P.; Ware, S. & Haga, M.
Partner: UNT Libraries Government Documents Department
open access

Migration and Entrapment of DNAPLs in Heterogeneous Systems: Impact of Waste and Porous Medium Composition

Description: Previously funded EMSP research efforts were directed towards the quantification of dense non-aqueous phase liquid (DNAPL) migration and entrapment behavior in physically and chemically heterogeneous systems. This research demonstrated that chemical heterogeneities can have a significant influence on DNAPL fate and persistence. Previous work, however, was limited to examination of the behavior of pure DNAPLs in systems with simple and well-defined aqueous and solid surface chemistry. The subsur… more
Date: June 1, 2004
Creator: Abriola, Linda M. & Demond, Avery H.
Partner: UNT Libraries Government Documents Department
open access

Tracing Geothermal Fluids

Description: Geothermal water must be injected back into the reservoir after it has been used for power production. Injection is critical in maximizing the power production and lifetime of the reservoir. To use injectate effectively the direction and velocity of the injected water must be known or inferred. This information can be obtained by using chemical tracers to track the subsurface flow paths of the injected fluid. Tracers are chemical compounds that are added to the water as it is injected back into… more
Date: March 1, 2004
Creator: Adams, Michael C. & Nash, Greg
Partner: UNT Libraries Government Documents Department
open access

IMPROVED TUBULARS FOR BETTER ECONOMICS IN DEEP GAS WELL DRILLING USING MICROWAVE TECHNOLOGY

Description: The main objective of the research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. This is being accomplished by developing an efficient and economically viable continuous microwave process to sinter continuously formed/extruded steel powder for… more
Date: January 1, 2004
Creator: Agrawal, Dinesh
Partner: UNT Libraries Government Documents Department
open access

Development of New Low-Cost, High-Performance, PV Module Encapsulant/Packaging Materials: Annual Technical Progress Report, Phase 1, 22 October 2002-30 September 2003

Description: The primary objectives of this subcontract are for Specialized Technology Resources, Inc., to work with U.S.-based PV module manufacturers representing crystalline silicon, polycrystalline silicon, amorphous silicon, copper indium diselenide (CIS), and other state-of-the-art thin-film technologies to develop formulations, production processes, prototype and qualify new low-cost, high-performance photovoltaic module encapsulants/packaging materials. The manufacturers will assist in identifying e… more
Date: March 1, 2004
Creator: Agro, S. C. & Tucker, R. T.
Partner: UNT Libraries Government Documents Department
open access

U.S.- Thailand Free Trade Agreement Negotiations

Description: This report examines Thailand’s economy and trade orientation, the scope and significance of the U.S.-Thai commercial relationship, and the likely top issues in the negotiations. The report concludes with a short summary of the Congressional role and interest in the FTA.
Date: September 1, 2004
Creator: Ahearn, Raymond J. & Morrison, Wayne M.
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 1, 2004
Creator: Ahmadi, Goodarz
Partner: UNT Libraries Government Documents Department
open access

Towards enhancing Sandia's capabilities in multiscale materials modeling and simulation.

Description: We report our conclusions in support of the FY 2003 Science and Technology Milestone ST03-3.5. The goal of the milestone was to develop a research plan for expanding Sandia's capabilities in materials modeling and simulation. From inquiries and discussion with technical staff during FY 2003 we conclude that it is premature to formulate the envisioned coordinated research plan. The more appropriate goal is to develop a set of computational tools for making scale transitions and accumulate experi… more
Date: January 1, 2004
Creator: Aidun, John Bahram; Fang, Huei Eliot; Barbour, John Charles; Westrich, Henry Roger & Chen, Er-Ping
Partner: UNT Libraries Government Documents Department
open access

Large batch dimensional metrology demonstrated in the example of a LIGA fabricated spring.

Description: Deep x-ray lithography in combination with electroforming is capable of producing high precision metal parts in small lot series. This study deals with a high aspect ratio structure with overall dimensions on the order of 10 mm x 7 mm x 1.5 mm, with the smallest line width being 150 {micro}m. The lateral deviation from the design is to be kept to a minimum, preferably below 5 {micro}m. To ensure adequate quality control, a semi-automated metrology technique has been established to measure all p… more
Date: April 1, 2004
Creator: Aigeldinger, Georg; Skala, Dawn M. & Ceremuga, Joseph T.
Partner: UNT Libraries Government Documents Department
open access

Final-part metrology for LIGA springs, Build Group 1.

Description: The LIGA spring is a recently designed part for defense program applications. The Sandia California LIGA team has produced an initial group build of these nickel alloy parts. These are distinctive in having a macroscopic lateral size of about 1 cm, while requiring microscopic dimensional precision on the order of a few micrometers. LIGA technology capabilities at Sandia are able to manufacture such precise structures. While certain aspects of the LIGA process and its production capabilities hav… more
Date: March 1, 2004
Creator: Aigeldinger, Georg; Skala, Dawn M.; Ceremuga, Joseph T. & Mills, Bernice E.
Partner: UNT Libraries Government Documents Department
open access

Monitoring the Energy-Use Effects of Cool Roofs on California Commercial Buildings

Description: Solar-reflective roofs stay cooler in the sun than solar-absorptive roofs. Such ''cool'' roofs achieve lower surface temperatures that reduce heat conduction into the building and the building's cooling load. The California Energy Commission has funded research in which Lawrence Berkeley National Laboratory (LBNL) has measured the electricity use and peak demand in commercial buildings to document savings from implementing the Commission's Cool Roofs program. The study seeks to determine the sa… more
Date: July 1, 2004
Creator: Akbari, Hashem; Levinson, Ronnen; Konopaki, Steve & Rainer, Leo
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: May 1, 2004
Creator: Akyurtlu, Ates & Akyurtlu, Jale F.
Partner: UNT Libraries Government Documents Department
open access

Relaxation nuclear magnetic resonance imaging (R-NMRI) of desiccation in M9787 silicone pads.

Description: The production and aging of silicone materials remains an important issue in the weapons stockpile due to their utilization in a wide variety of components and systems within the stockpile. Changes in the physical characteristics of silicone materials due to long term desiccation has been identified as one of the major aging effects observed in silicone pad components. Here we report relaxation nuclear magnetic resonance imaging (R-NMRI) spectroscopy characterization of the silica-filled and un… more
Date: June 1, 2004
Creator: Alam, Todd M; Cherry, Brian Ray & Alam, Mary Kathleen
Partner: UNT Libraries Government Documents Department
open access

Quantification of ammonia binding sites in Davison (Type 3A) zeolite desiccant : a solid-state Nitrogen-15 MAS NMR spectroscopy investigation.

Description: The quantitative analysis of ammonia binding sites in the Davison (Type 3A) zeolite desiccant using solid-state {sup 15}N MAS NMR spectroscopy is reported. By utilizing 15N enriched ammonia ({sup 15}NH{sub 3}) gas, the different adsorption/binding sites within the zeolite were investigated as a function of NH{sub 3} loading. Using {sup 15}N MAS NMR multiple sites were resolved that have distinct cross-polarization dynamics and chemical shift behavior. These differences in the {sup 15}N NMR were… more
Date: January 1, 2004
Creator: Alam, Todd Michael; Holland, Gregory P. & Cherry, Brian Ray
Partner: UNT Libraries Government Documents Department
open access

The neutrino factory and beta beam experiments and development

Description: The long-term prospects for fully exploring three-flavor mixing in the neutrino sector depend upon an ongoing and increased investment in the appropriate accelerator R&D. Two new concepts have been proposed that would revolutionize neutrino experiments, namely the Neutrino Factory and the Beta Beam facility. These new facilities would dramatically improve our ability to test the three-flavor mixing framework, measure CP violation in the lepton sector, and perhaps determine the neutrino mass… more
Date: November 1, 2004
Creator: Albright, C.; Barger, V.; Beacom, J. F.; Berg, J. S.; Black, E.; Blondel, A. et al.
Partner: UNT Libraries Government Documents Department
open access

FINAL REPORT FORMER RADIATION WORKER MEDICAL SURVEILLANCE PROGRAM AT ROCKY FLATS For Department of Energy Programs

Description: The Former Radiation Worker Medical Surveillance Program at Rocky Flats was conducted in Arvada, CO, by Oak Ridge Associated Universities through the Oak Ridge Institute for Science and Education under DOE Contract DE-AC05-00OR22750. Objectives of the program were to obtain information on the value of medical surveillance among at-risk former radiation workers and to provide long-term internal radiation dosimetry information to the scientific community. This program provided the former radiatio… more
Date: November 1, 2004
Creator: Aldrich, Joe M.
Partner: UNT Libraries Government Documents Department
open access

SMART SCREENING SYSTEM (S3) IN TACONITE PROCESSING

Description: The conventional vibrating machines used in processing plants have had undesirable high noise and vibration levels. They also have had unsatisfactorily low screening efficiency, high energy consumption, high maintenance cost, low productivity, and poor worker safety. These conventional vibrating machines have been used in most every processing plant. Most of the current material separation technology uses heavy and inefficient electric motors with an unbalance rotating mass to generate the shak… more
Date: April 1, 2004
Creator: Allaei, Daryoush & Mohammed, Asim Syed
Partner: UNT Libraries Government Documents Department
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