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General Services Administration: STAR-PBS' New Program for Tracking and Managing Real Property

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Public Buildings Service's (PBS) System for Tracking and Administering Real Property (STAR), focusing on: (1) the functions STAR performs; (2) whether users were having problems using STAR; (3) the steps PBS had taken or is taking to address any user problems; and (4) the actions PBS had taken or plans to take to ensure that STAR data are accurate, reliable… more
Date: October 12, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Anthrax Vaccine: Safety and Efficacy Issues

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the results of its ongoing examination of the safety and efficacy of the anthrax vaccine, focusing on the: (1) need for a six-shot regimen and annual booster shots; (2) long- and short-term safety of the vaccine; (3) efficacy of the vaccine; (4) extent to which problems the Food and Drug Administration (FDA) found in the vaccine production facility in Michigan could… more
Date: October 12, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Request for approval, vented container annual release fraction

Description: In accordance with the approval conditions for Modification to the Central Waste Complex (CWC) Radioactive Air Emissions Notice of Construction (NOC). dated August 24,1998, a new release fraction has been developed for submittal to the Washington State Department of Health (WDOH). The proposed annual release fraction of 2.50 E-14 is proposed for use in future NOCs involving the storage and handling operations associated with vented containers on the Hanford Site. The proposed annual release fra… more
Date: October 12, 1999
Creator: Hill, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Crime Technology: Department of Defense Assistance to State and Local Law Enforcement Agencies

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the crime technology assistance provided by the Department of Defense (DOD) to state and local law enforcement agencies during fiscal years (FY) 1996 through 1998, focusing on: (1) grants or other types of direct federal funding; (2) access to support services and systems, such as counterdrug or other intelligence centers; and (3) in-kind transfers of equipment… more
Date: October 12, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Forensic 3D Scene Reconstruction

Description: Traditionally law enforcement agencies have relied on basic measurement and imaging tools, such as tape measures and cameras, in recording a crime scene. A disadvantage of these methods is that they are slow and cumbersome. The development of a portable system that can rapidly record a crime scene with current camera imaging, 3D geometric surface maps, and contribute quantitative measurements such as accurate relative positioning of crime scene objects, would be an asset to law enforcement agen… more
Date: October 12, 1999
Creator: LITTLE,CHARLES Q.; PETERS,RALPH R.; RIGDON,J. BRIAN & SMALL,DANIEL E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Tips and Traps in the 14c Bio-AMS Preparation Laboratory (WSam 7)

Description: Maintaining a contamination free sample preparation lab for biological 14 C AMS requires the same or more diligence as a radiocarbon dating prep lab. Isotope ratios of materials routinely range over 4-8 orders of magnitude in a single experiment, dosing solutions contain thousands of DPM and gels used to separate proteins possess 14 C ratios of 1pMC. Radiocarbon contamination is a legacy of earlier tracer work in most biological laboratories, even if they were never hot labs. Removable surface … more
Date: October 12, 1999
Creator: Buchholz, B. A.; Haack, K. W.; Stewart, P. H. & Vogel, J. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Time-resolved far-infrared experiments at the National Synchrotron Light Source. Final report

Description: A facility for time-resolved infrared and far-infrared spectroscopy has been built and commissioned at the National Synchrotron Light Source. This facility permits the study of time dependent phenomena over a frequency range from 2-8000cm{sup {minus}1} (0.25 meV-1 eV). Temporal resolution is approximately 200 psec and time dependent phenomena in the time range out to 100 nsec can be investigated.
Date: October 12, 1999
Creator: Tanner, D. B.; Reitze, D. H. & Carr, G. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of historical gross gamma logging data from BX tank farm

Description: Gross gamma ray logs, recorded from January 1975 through mid-year 1994 as part of the Single-Shell Tank Farm Dry Well Surveillance Program, have been reanalyzed for the BX tank farm to locate the presence of mobile radionuclides in the subsurface. This report presents the BX tank farm gross gamma ray data in such a way as to assist others in their study of vadose zone mechanism.
Date: October 12, 1999
Creator: Myers, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

TFA Tanks Focus Area Multiyear Program Plan FY00-FY04

Description: The U.S. Department of Energy (DOE) continues to face a major radioactive waste tank remediation problem with hundreds of waste tanks containing hundreds of thousands of cubic meters of high-level waste (HLW) and transuranic (TRU) waste across the DOE complex. Approximately 68 tanks are known or assumed to have leaked contamination to the soil. Some of the tank contents have reacted to form flammable gases, introducing additional safety risks. These tanks must be maintained in a safe condition … more
Date: October 12, 1999
Creator: Carteret, B. A.; Westsik, J. H.; Roeder-Smith, L. R.; Gilchrist, R. L.; Allen, R. W.; Schlahta, S. N. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reentrant softening as precursor to reentrant melting of the vortex-lattice in YBCO single crystal

Description: A vibrating sample technique was used to study the elastic behavior of the magnetic vortex system in YBa{sub 2}Cu{sub 3}O{sub 7} single crystal. The setup consists of a system of two weakly coupled mechanical oscillators (transducer, sample), the frequency and Q of which depends sensitively on the frequencies of the two subsystems as well as the coupling between both. By sweeping a magnetic field at temperatures below the superconducting transition temperature {Tc} the authors observe pronounce… more
Date: October 12, 1999
Creator: Hucho, C.; Carter, J. M.; Muller, V.; Petrean, A. & Kwok, W. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurements of nonmethane hydrocarbons in Phoenix, Arizona

Description: Nonmethane hydrocarbons (NMHCs) are precursors to oxidant formation. They are oxidized by hydroxyl radical (OH), forming a complex mixture of peroxy radicals that oxidize NO to NO{sub 2} without consuming ozone (O{sub 3}) and thus allow O{sub 3} to increase in the atmospheric boundary layer. The reactivities of the NMHCs that compose biogenic and anthropogenic emissions vary greatly. For example, isoprene, which is emitted by deciduous vegetation, has an atmospheric lifetime with respect to oxi… more
Date: October 12, 1999
Creator: Doskey, P. V.; Kotamarthi, V. R. & Rudolph, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Influence of Annealing Conditions on Dopant Antirotation of Si+ and Mg+ Implanted GaN

Description: This report reflects the results of heat treatment under various conditions on as-grown and ion implanted GaN. The PL spectrums of as-grown GaN and GaN with 400 A AlN cap were almost identical. This fact allows one to use PL analysis without AlN stripping. As-grown GaN and ion implanted with Mg and Si crystals were annealed at 1300 C for 10 minutes in three different conditions: in flowing argon gas; in flowing ultra high purity nitrogen; and in a quartz capsule sealed with nitrogen gas. The re… more
Date: October 12, 1999
Creator: Suvkhanov, A.; Parikh, N.; Usov, I.; Hunn, J. D.; Withrow, S.; Thomson, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Y-Ba-Cu-O film deposition by metal organic chemical vapor deposition on buffered metal substrates.

Description: YBa{sub 2}Cu{sub 3}O{sub 2} (YBCO) films have been deposited on buffered metal substrates by Metal Organic Chemical Vapor Deposition (MOCVD). Cube-textured nickel substrates were fabricated by a thermomechanical process. Epitaxial CeO{sub 2}films were deposited on these substrates by thermal evaporation. Nickel alloy substrates with biaxially-textured Yttria-Stabilized Zirconia (YSZ) buffer layers deposited by Ion Beam Assisted Deposition were also prepared. Highly biaxially-textured YBCO films… more
Date: October 12, 1999
Creator: Selvamanickam, V.; Galinski, G.; DeFrank, J.; Trautwein, C.; Haldar, P.; Balachandran, U. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

What Makes a Simulation Useful

Description: Modern computers make possible a new blending of systems, man, and cybernetics in the detailed simulation of large sociotechnical systems. Several such simulations are currently under development at Los Alamos National Laboratory and elsewhere. When deployed, they will affect the daily lives of hundreds of millions of people and the allocation of billions of dollars. Whether they are deployed depends entirely on their perceived usefulness, which in turn depends on answers to the following: What… more
Date: October 12, 1999
Creator: Eubank, S.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Security of Russia's Nuclear Arsenal: The Human Factor

Description: Assertions by the Russian military that all of their nuclear weapons are secure against theft and that nuclear units within the military are somehow insulated from the problems plaguing the Russian military should not be accepted uncritically. Accordingly, we should not give unwarranted credence to the pronouncements of military figures like Cal.-Gen. Igor Valynkin, Chief of the Defense Ministry's 12th Main Directorate, which oversees the country's nuclear arsenal. He contends that ''Russian nu… more
Date: October 12, 1999
Creator: Ball, D.Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Time resolved studies of phase transformations using high temperature powder diffraction

Description: A high temperature furnace (up to 1500 C) has been designed specifically for use with high-energy synchrotron radiation using Debeye-Scherrer transmission geometry. This allows for full bulk sampling and a low thermal gradient (< 1 C/mm) and a controlled environment (inert to oxidizing). Unlike flat plate geometry, the transmission geometry allows for solid-liquid as well as solid-solid phase transitions to be explored. A comparison between image plate and charged-coupled detector (CCD) syst… more
Date: October 12, 1999
Creator: Kramer, M. J.; Margulies, L.; McCallum, R. W.; Zhao, H. L.; Goldman, A. I.; Kycia, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Flux pinning forces in irradiated a-axis oriented EuBa{sub 2}Cu{sub 3}O{sub 7} films

Description: {alpha}-axis oriented EuBa{sub 2}Cu{sub 3}O{sub 7} films have been irradiated with high energy heavy ions in different configurations to study the possible pinning role of the artificial defects in this kind of samples. The original pinning limiting mechanism of the samples is not essentially altered what the irradiation is parallel to the CuO{sub 2} planes. However, when it is deviated from this direction, an increase in critical current density and a change in pinning force are observed when … more
Date: October 12, 1999
Creator: Martin, J. I.; Gonzalez, E. M.; Kwok, W.-K & Vincent, J. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

In situ measurement of fatigue-crack growth rates in a silicon carbide ceramic at elevated temperatures using a D.C. potential system

Description: The understanding of the mechanisms of fatigue-crack propagation in advanced ceramics at elevated temperatures (>800 degrees C) has in part been hampered by the experimental difficulty in directly measuring crack lengths, and hence crack-growth rates, at such high temperatures.
Date: October 12, 1999
Creator: Chen, D.; Gilbert, C. J. & Ritchie, R. O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An Assessment of the Disposal of Petroleum Industry NORM in Nonhazardous Landfills

Description: In this study, the disposal of radium-bearing NORM wastes in nonhazardous landfills in accordance with the MDEQ guidelines was modeled to evaluate potential radiological doses and resultant health risks to workers and the general public. In addition, the study included an evaluation of the potential doses and health risks associated with disposing of a separate NORM waste stream generated by the petroleum industry--wastes containing lead-210 (Pb-210) and its progeny. Both NORM waste streams are… more
Date: October 12, 1999
Creator: Arnish, John J.; Blunt, Deborah, L.; Haffenden, Rebecca A.; Herbert, Jennifer; Pfingston, Manjula; Smith, Karen P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MIL-L-87177 and CLT:X-10 Lubricants Improve Electrical Connector Fretting Corrosion Behavior

Description: We have conducted a fretting research project using MIL-L-87177 and CLT: X-10 lubricants on Nano-miniature connectors. When they were fretted without lubricant, individual connectors first exceeded our 0.5 ohm failure criteria from 2,341 to 45,238 fretting cycles. With additional fretting, their contact resistance increased to more than 100,000 ohms. Unmodified MIL-L-87177 lubricant delayed the onset of first failure to between 430,000 and over 20,000,000 fretting cycles. MIL-L-87177 modified b… more
Date: October 12, 1999
Creator: AUKLAND,NEIL R. & HANLON,JAMES T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Modal response of interior mass based upon external measurements

Description: Modal response testing has been used to predict the motion of interior masses of a system in which only external instrumentation is allowed. Testing of this form may occasionally be necessary in validation of a computer model, but also has potential as a tool for validating individual assemblies in a QA process. Examination of the external frequency response and mode shapes can offer insight into interior response. The interpretation of these results is improved through parallel analytical solu… more
Date: October 12, 1999
Creator: Chow, C. T.; Eli, M.; Jorgensen, B. R. & Woehrle, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Computational Biology and High Performance Computing

Description: The pace of extraordinary advances in molecular biology has accelerated in the past decade due in large part to discoveries coming from genome projects on human and model organisms. The advances in the genome projects so far, happening well ahead of schedule and under budget, have exceeded any dreams by its protagonists, let alone formal expectations. Biologists exppect the next phase of genome project to be even more startling in terms of dramatic breakthroughs in our understanding of human bi… more
Date: October 12, 1999
Creator: Simon, Horst D.; Zorn, Manfred; Head-Gordon, Teresa; Arkin, Adam & Shoichet, Brian
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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