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Office of Scientific & Technical Information Technical Reports
174
Congressional Research Service Reports
101
Government Accountability Office Reports
37
Technical Report Archive and Image Library
27
TRAIL Microcard Collection
14
National Advisory Committee for Aeronautics Collection
9
Texas State Publications
2
University Records
2
D. Jack Davis Art Education Collection
1
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349 Matching Results
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Exempting Food and Agriculture Products from U.S. Economic Sanctions: Status and Implementation
This report includes information background and analysis regarding exemption for and agriculture products from United States economic sanctions. This report also details debates, enacted provisions, sales, and developments regarding this subject.
Date:
December 14, 2004
Creator:
Jurenas, Remy
System:
The UNT Digital Library
Military Construction, Veterans Affairs, and Related Agencies: FY2013 Appropriations
This report discusses the appropriations bill, FY2013 Appropriations, which provides funding for the planning, design, construction, alteration, and improvement of facilities used by active and reserve military components worldwide.
Date:
December 14, 2012
Creator:
Else, Daniel H.; Scott, Christine & Panangala, Sidath Viranga
System:
The UNT Digital Library
Defense Authorization and Appropriations Bills: A Chronology, FY1970-FY2005
This report is a research aid, which lists the Department of Defense (DOD) authorization bills (Table 1) and appropriations bills (Table 2).
Date:
December 14, 2004
Creator:
Carter, Linwood B. & Coipuram, Thomas, Jr.
System:
The UNT Digital Library
Emergency Communications Legislation, 2002-2006: Implications for the 110th Congress
Since September 11, 2001, several bills introduced in the U.S. Congress have included provisions to assist emergency communications. Key provisions from a number of these bills have become law. This report summarizes progress in developing legislation, especially in the 109th Congress, in three areas of emergency communications: communications among first responders and other emergency personnel; emergency warnings and alerts; and 911 call centers and systems. Each area could be the subject of further consideration in the 110th Congress, through oversight, additional legislation, or funding.
Date:
December 14, 2006
Creator:
Moore, Linda K.
System:
The UNT Digital Library
Investigating the Heating of a Potassium-Doped Aluminosilicate Ion Source Using a 1 Micron Laser
The heavy ion fusion (HIF) program is interested in developing a high brightness ion source for high energy density physics (HEDP) experiments. One possible approach to obtaining higher brightness may be to raise the surface temperature of the ion source just prior to extraction. The current ion source material being studied is a layer of potassium-doped aluminosilicate bonded to a tungsten substrate. It is speculated that if the surface temperature of the source is raised above 1200 C (from a steady-state temperature of 900 C) for time periods on the order of 100's of nanoseconds, current densities of greater than 100 mA/cm{sup 2} of ions may be achievable. Typical aluminosilicate sources produce ion current densities (either K+ or Na+ ions) of {approx}10 mA/cm{sup 2} (at 1100 C). A number of heating methods might be possible, including lasers, diode arrays, and flash lamps. Here we assume laser heating. In this preliminary study, we used the LLNL RadHeat code to model the time-temperature history of the surface when hit by laser pulses and illustrate how RadHeat can be used to optimize the surface temperature response. Also of interest is the temperature history of the interface temperature between the ceramic and the metal …
Date:
December 14, 2004
Creator:
Schmitt, R. C.; Meier, W. R.; Kwan, J. W.; Abbott, R. P. & Latkowski, J. F.
System:
The UNT Digital Library
NAFTA: Estimates of Job Effects and Industry Trade Trends After 5½ Years
None
Date:
December 14, 1999
Creator:
unknown
System:
The UNT Digital Library
Aviation Congestion and Delay: System-Wide and New York-Area Issues
This report addresses System-Wide and New York-Area Issues of Aviation Congestion and Delay.
Date:
December 14, 2007
Creator:
Elias, Bart; Fischer, John W. & Tatelman, Todd B.
System:
The UNT Digital Library
State, Foreign Operations, and Related Programs: FY2008 Appropriations
None
Date:
December 14, 2007
Creator:
unknown
System:
The UNT Digital Library
China’s Space Program: Options for U.S.-China Cooperation
This report outlines recent activities and future plans in China's civilian space sector. It discusses benefits and trade-offs of possible U.S.-China collaboration in space, as well as several options to improve space relations, including information exchange, policy dialogue, and joint activities.
Date:
December 14, 2007
Creator:
Logan, Jeffrey
System:
The UNT Digital Library
Cuba-U.S. Relations: Chronology of Key Events 1959-1999
None
Date:
December 14, 1999
Creator:
Sullivan, Mark P. & York, Suzanne L.
System:
The UNT Digital Library
The Sustainability of the Federal Budget Deficit: Market Confidence and Economic Effects
None
Date:
December 14, 2012
Creator:
unknown
System:
The UNT Digital Library
Federal R&D, Drug Discovery, and Pricing: Insights from the NIH-University-Industry Relationship
This report explores the reasons behind government funding of research and development and subsequent efforts to facilitate private sector commercialization of the results of such work.
Date:
December 14, 2006
Creator:
Schactt, Wendy H.
System:
The UNT Digital Library
Decay of /sup 99/Mo
Relative intensities for K x-rays and gamma rays emanating from /sup 99/Mo in equilibrium with its /sup 99/Tc* daughter have been measured using several Ge photon detectors. Combining these intensities with an evaluated set of electron-conversion coefficients has provided a set of absolute intensities for the observed gamma rays. The absolute intensity for the dominant 140.5-keV gamma ray in /sup 99/Tc was determined to be 90.7 +- 0.6/100 /sup 99/Mo disintegrations for /sup 99/Mo decay in equilibrium with decay of the /sup 99/Tc* daughter.
Date:
December 14, 1976
Creator:
Dickens, J. K. & Love, T. A.
System:
The UNT Digital Library
Advanced Motors
Project Summary Transportation energy usage is predicted to increase substantially by 2020. Hybrid vehicles and fuel cell powered vehicles are destined to become more prominent as fuel prices rise with the demand. Hybrid and fuel cell vehicle platforms are both dependent on high performance electric motors. Electric motors for transportation duty will require sizeable low-speed torque to accelerate the vehicle. As motor speed increases, the torque requirement decreases which results in a nearly constant power motor output. Interior permanent magnet synchronous motors (IPMSM) are well suited for this duty. , , These rotor geometries are configured in straight lines and semi circular arc shapes. These designs are of limited configurations because of the lack of availability of permanent magnets of any other shapes at present. We propose to fabricate rotors via a novel processing approach where we start with magnet powders and compact them into a net shape rotor in a single step. Using this approach, widely different rotor designs can be implemented for efficiency. The current limitation on magnet shape and thickness will be eliminated. This is accomplished by co-filling magnet and soft iron powders at specified locations in intricate shapes using specially designed dies and automatic powder filling …
Date:
December 14, 2012
Creator:
Knoth, Edward A.; Chelluri, Bhanumathi & Schumaker, Edward J.
System:
The UNT Digital Library
SALTSTONE 3QCY10 TCLP RESULTS
The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the third quarter of the 2010 calendar year (3QCY10), Tank 50H accepted transfers of approximately 76 kgal from the Effluent Treatment Project (ETP), approximately 7 kgal from Tank 710 - the HCanyon General Purpose Evaporator, approximately 57 kgal from the H-Canyon Super Kukla campaign, approximately 58 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 6 kgal from other sources. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained July 1, 2010 during 3QCY10 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope …
Date:
December 14, 2010
Creator:
Reigel, M.
System:
The UNT Digital Library
Final Report for research grant "Development of Methods for High Specific Activity Labeling of Biomolecules Using Astatine-211 in Different Oxidation States"
The overall objective of this research effort was to develop methods for labeling biomolecules with higher oxidation state species of At-211. This was to be done in an effort to develop reagents that had higher in vivo stability than the present carbon-bonded At-211-labeled compounds. We were unsuccessful in that effort, as none of the approaches studied provided reagents that were stable to in vivo deastatination. However, we gained a lot of information about At-211 in higher oxidation states. The studies proved to be very difficult as small changes in pH and other conditions appeared to change the nature of the species that obtained (by HPLC retention time analyses), with many of the species being unidentifiable. The fact that there are no stable isotopes of astatine, and the chemistry of the nearest halogen iodine is quite different, made it very difficult to interpret results of some experiments. With that said, we believe that a lot of valuable information was obtained from the studies. The research effort evaluated: (1) methods for chemical oxidation of At-211, (2) approaches to chelation of oxidized At-211, and (3) approaches to oxidation of astatophenyl compounds. A major hurdle that had to be surmounted to conduct the research …
Date:
December 14, 2011
Creator:
Wilbur, D., Scott
System:
The UNT Digital Library
Equation of state and shock entropy of CaCO/sub 3/
The energy released in a nuclear detonation can vaporize the surrounding medium. If one knows the gaseous equation of state of the medium, it can be used along with estimates of the shock entropy to predict such things as cavity size and seismic effects. We have calculated the equation of state and shock entropy for calcite (CaCO/sub 3/). We formulated the gaseous equation of state for pressures between 1 and 10/sup 6/ bar and temperatures from ambient to 1000 eV using a combination of the TIGER and IEEOS codes. In this report, we also describe the calculational methods and the material parameters used to estimate shock entropy on the loading path. We show how these results can be used to estimate final states following unloading from a given point on the shock Hugoniot. A specific example, dense calcite at 900 kbar, is used to illustrate the method.
Date:
December 14, 1976
Creator:
Pasternak, A.; Lee, E. L. & Miller, D. G.
System:
The UNT Digital Library
Surplus U-233 Oxide
None
Date:
December 14, 1984
Creator:
Kokenge, B. R.
System:
The UNT Digital Library
A Simple Harmonic Universe
We explore simple but novel bouncing solutions of general relativity that avoid singularities. These solutions require curvature k = +1, and are supported by a negative cosmological term and matter with -1 < w < -1 = 3. In the case of moderate bounces (where the ratio of the maximal scale factor a{sub +} to the minimal scale factor a{sub -} is {Omicron}(1)), the solutions are shown to be classically stable and cycle through an infinite set of bounces. For more extreme cases with large a{sub +} = a{sub -}, the solutions can still oscillate many times before classical instabilities take them out of the regime of validity of our approximations. In this regime, quantum particle production also leads eventually to a departure from the realm of validity of semiclassical general relativity, likely yielding a singular crunch. We briefly discuss possible applications of these models to realistic cosmology.
Date:
December 14, 2011
Creator:
Graham, Peter W.; /Stanford U., ITP; Horn, Bart; Kachru, Shamit; /Stanford U., ITP /SLAC; Rajendran, Surjeet et al.
System:
The UNT Digital Library
Observation of Supernova Remnant IC 443 with the Fermi Large Area Telescope
None
Date:
December 14, 2012
Creator:
Abdo, A. A.
System:
The UNT Digital Library
Institute for Molecular Medicine Research Program
The objectives of the project are the development of new Positron Emission Tomography (PET) imaging instrumentation, chemistry technology platforms and new molecular imaging probes to examine the transformations from normal cellular and biological processes to those of disease in pre-clinical animal models. These technology platforms and imaging probes provide the means to: 1. Study the biology of disease using pre-clinical mouse models and cells. 2. Develop molecular imaging probes for imaging assays of proteins in pre-clinical models. 3. Develop imaging assays in pre-clinical models to provide to other scientists the means to guide and improve the processes for discovering new drugs. 4. Develop imaging assays in pre-clinical models for others to use in judging the impact of drugs on the biology of disease.
Date:
December 14, 2012
Creator:
Phelps, Michael E.
System:
The UNT Digital Library
Lightweight Aluminum/Nano composites for Automotive Drive Train Applications
During Phase I, we successfully processed air atomized aluminum powders via Dynamic Magnetic Compaction (DMC) pressing and subsequent sintering to produce parts with properties similar to wrought aluminum. We have also showed for the first time that aluminum powders can be processed without lubes via press and sintering to 100 % density. This will preclude a delube cycle in sintering and promote environmentally friendly P/M processing. Processing aluminum powders via press and sintering with minimum shrinkage will enable net shape fabrication. Aluminum powders processed via a conventional powder metallurgy process produce too large a shrinkage. Because of this, sinter parts have to be machined into specific net shape. This results in increased scrap and cost. Fully sintered aluminum alloy under this Phase I project has shown good particle-to-particle bonding and mechanical properties. We have also shown the feasibility of preparing nano composite powders and processing via pressing and sintering. This was accomplished by dispersing nano silicon carbide (SiC) powders into aluminum matrix comprising micron-sized powders (<100 microns) using a proprietary process. These composite powders of Al with nano SiC were processed using DMC press and sinter process to sinter density of 85-90%. The process optimization along with sintering needs to …
Date:
December 14, 2012
Creator:
Chelluri, Bhanumathi; Knoth, Edward A. & Schumaker, Edward J.
System:
The UNT Digital Library
Position Ring System using Anger Type Detectors
The overall objective of our project was to develop PET scanners and imaging techniques that achieve high performance and excellent image quality. Our approach was based upon 3-D imaging (no septa) with position-sensitive Anger-logic detectors, whereby the encoding ratio of resolution elements to number of photo-multiplier tube channels is very high. This design led to a series of PET systems that emphasized cost-effectiveness and practicality in a clinical environment.
Date:
December 14, 2004
Creator:
Joel S. Karp, principal investigator
System:
The UNT Digital Library
SCALING SOLID RESUSPENSION AND SORPTION FOR THE SMALL COLUMN ION EXCHANGE PROCESSING TANK
The Small Column Ion Exchange (SCIX) process is being developed to remove cesium, strontium, and actinides from Savannah River Site (SRS) Liquid Waste using an existing 1.3 million gallon waste tank (i.e., Tank 41H) to house the process. Savannah River National Laboratory (SRNL) is conducting pilot-scale mixing tests to determine the pump requirements for suspending and resuspending Monosodium Titanate (MST), Crystalline Silicotitanate (CST), and simulated sludge. In addition, SRNL will also be conducting pilot-scale tests to determine the mixing requirements for the strontium and actinide sorption. As part of this task, the results from the pilot-scale tests must be scaled up to a full-scale waste tank. This document describes the scaling approach. The pilot-scale tank is a 1/10.85 linear scale model of Tank 41H. The tank diameter, tank liquid level, pump nozzle diameter, pump elevation, and cooling coil diameter are all 1/10.85 of their dimensions in Tank 41H. The pump locations correspond to the proposed locations in Tank 41H by the SCIX Program (Risers B5 and B2 for two pump configurations and Risers B5, B3, and B1 for three pump configurations). MST additions are through Riser E1, the proposed MST addition riser in Tank 41H. To determine the approach to …
Date:
December 14, 2010
Creator:
Poirier, M. & Qureshi, Z.
System:
The UNT Digital Library