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National Park Service: Flood Recovery Efforts at Yosemite National Park, California

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the use of the disaster recovery funds provided for Yosemite National Park, following the January 1997 flood, focusing on whether: (1) planned and actual expenditures are consistent with the park's planning documents; (2) the costs of the disaster recovery projects appear reasonable; and (3) there is any merit to the allegations about the misuse of some of the d… more
Date: January 27, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Defense IRM: Alternatives Should Be Considered in Developing the New Civilian Personnel System

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Department of Defense's (DOD) efforts to reduce the costs associated with civilian personnel management, focusing on: (1) how DOD determines the number and locations for civilian personnel regional service centers and why is there a wide disparity in the number of regional centers among the services; (2) whether DOD is applying the investment principles of … more
Date: January 27, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Year 2000 Computing Crisis: Status of Bureau of Prisons' Year 2000 Efforts

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO assessed how well the Bureau of Prisons (BOP) is managing its year 2000 program, focusing on: (1) the status of the BOP's year 2000 program; and (2) recent actions it has taken to strengthen its management of the program and improve year 2000 assistance to state and local government institutions."
Date: January 27, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Demonstration of packaging of Fernald Silo I waste in chemically bonded phosphate ceramic.

Description: This paper summarizes our experience in bench-scale packaging of Fernald Silo I waste in chemically bonded phosphate ceramics. The waste was received from the Fernald Environmental Management Project (FEMP), and its treatability was studied in our laboratory. This waste contained As{sup 5+}, Ba, Cr{sup 6+}, Ni, Pb, Se{sup 4+}, and Zn as the hazardous contaminants. In addition, the total specific activity of all the radioactive isotopes in the waste was 3.85 {micro}Ci/g, of which that of radium … more
Date: January 27, 1999
Creator: Wagh, A. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Approach toward development of release standards for D and D cleanup.

Description: The release of materials containing residual radioactivity from a controlled environment in decontamination and decommissioning (D&D) activities has been problematic. The primary impediment to such a release is the lack of a suitable framework within which release standards can be developed. The concept of clearance for radioactive materials was recently introduced by the International Atomic Energy Agency (IAEA) (l). This concept is being evaluated by the international regulatory communiti… more
Date: January 27, 1999
Creator: Chen, S. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Disposal of oil field wastes and NORM wastes into salt caverns.

Description: Salt caverns can be formed through solution mining in the bedded or domal salt formations that are found in many states. Salt caverns have traditionally been used for hydrocarbon storage, but caverns have also been used to dispose of some types of wastes. This paper provides an overview of several years of research by Argonne National Laboratory on the feasibility and legality of using salt caverns for disposing of nonhazardous oil field wastes (NOW) and naturally occurring radioactive material… more
Date: January 27, 1999
Creator: Veil, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Corrective Action Investigation Plan for Corrective Action Unit 500: Test Cell A Septic System, Nevada Test Site, Nevada

Description: This Corrective Action Investigation Plan (CAIP) has been developed in accordance with the Federal Facility Agreement and Consent Order (FFACO) that was agreed to by the US Department of Energy, Nevada Operations Office (DOE/NV); the State of Nevada Division of Environmental Protection (NDEP); and the US Department of Defense (FFACO, 1996). The CAIP is a document that provides or references all of the specific information for investigation activities associated with Corrective Action Units (CAU… more
Date: January 27, 1999
Creator: Vegas, IT Las
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Method for Treating Discretization Error in Nondeterministic Analysis

Description: A response surface methodology-based technique is presented for treating discretization error in non-deterministic analysis. The response surface, or metamodel, is estimated from computer experiments which vary both uncertain physical parameters and the fidelity of the computational mesh. The resultant metamodel is then used to propagate the variabilities in the continuous input parameters, while the mesh size is taken to zero, its asymptotic limit. With respect to mesh size, the metamodel is e… more
Date: January 27, 1999
Creator: Alvin, Kenneth F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Inflation and the Real Minimum Wage: Fact Sheet

Description: Because the minimum wage is not indexed to the price level, it has been legislatively increased from time to time to make up for the loss in its real value due to inflation. In nominal terms, the minimum wage has risen steadily since 1938 from 25 cents an hour to $5.15 where it now stands. But the legislated adjustments to the minimum wage have occurred at irregular intervals. As a result, there has been significant variation in the purchasing power of the minimum wage.
Date: January 27, 1999
Creator: Cashell, Brian W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Deep X-Ray Lithography Based Fabrication of Rare-Earth Based Permanent Magnets and their Applications to Microactuators

Description: Precision high aspect-ratio micro molds constructed by deep x-ray lithography have been used to batch fabricate accurately shaped bonded rare-earth based permanent magnets with features as small as 5 microns and thicknesses up to 500 microns. Maximum energy products of up to 8 MGOe have been achieved with a 20%/vol. epoxy bonded melt-spun isotropic Nd2Fe14b powder composite. Using individually processed sub- millimeter permanent sections multipole rotors have been assembled. Despite the fact th… more
Date: January 27, 1999
Creator: Christenson, T.R.; Garino, T.J. & Venturini, E.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Batch Wafer Scale LIGA Assembly and Packaging Technique vai Diffusion Bonding

Description: A technique using diffusion bonding (or solid-state welding) has been used to achieve batch fabrication of two- level nickel LIGA structures. Interlayer alignment accuracy of less than 1 micron is achieved using press-fit gauge pins. A mini-scale torsion tester was built to measure the diffusion bond strength of LIGA formed specimens that has shown successful bonding at temperatures of 450"C at 7 ksi pressure with bond strength greater than 100 Mpa. Extensions to this basic process to allow for… more
Date: January 27, 1999
Creator: Christenson, T.R. & Schmale, D.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dynamics of Wet Oxidation of High-AL-Content III-V Materials

Description: Oxidation of layers of high-Al-content III-V materials by water vapor has become the enabling process for high-efficiency vertical cavity surface emitting lasers (VCSELS) and has potential applications for reducing substrate current leakage in GaAs-on-insulator (GOI) MESFETS. Because of the established importance of wet oxidation in optoelectronic devices and its potential applications in electronic devices, it has become increasingly important to understand the mechanism of wet oxidation and h… more
Date: January 27, 1999
Creator: Ashby, C.I.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Relic neutrino detector

Description: Probably the most promising way of detecting cosmic neutrinos is measuring the mechanical force exerted by clastic scattering of cosmic neutrinos from macroscopic targets. The expected acceleration is ~10<sup>-23</sup>cm/s<sup>2</sup> for Dirac neutrinos of mass ~10 eV and local density ~10<sup>7</sup>/cm<sup>3</sup>. A novel torsion balance design is presented, which addresses the sensitivity-limiting factors of existing balances, such as seismic and thermal noise, and angular readout resoluti… more
Date: January 27, 1999
Creator: Hagmann, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Multi-Domain Surety Modeling and Analysis for High Assurance Systems

Description: Engineering systems are becoming increasingly complex as state of the art technologies am incorporated into designs. Surety modeling and analysis is an emerging science that permits an engineer to qualitatively and quantitatively predict and assess the completeness and predictability of a design. Surety is a term often used in the Department of Defense (DoD) and Department of Energy (DOE) communities, which refers to the integration of safety, security, reliability and performance aspects of de… more
Date: January 27, 1999
Creator: Davis, J.; Martinez, M.; Scott, J. & Sztipanovits, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Phase Diagram of Iron, Revised-Core Temperatures

Description: Shock-wave experiments on iron preheated to 1,573 K conducted from 14 to 73 GPa, yield new data for sound velocities of the {gamma}- and liquid-phases. Melting was observed in the highest pressure ({approximately} 71 {+-} 2 GPa) experiments at calculated shock temperatures of 2,775 {+-} 160 K. This single crossing of the {gamma}-liquid boundary measured here agrees closely with the {gamma}-iron melting line determined by Boehler [1993], Saxena et al. [1993], and Jephcoat and Besedin [1997]. Thi… more
Date: January 27, 1999
Creator: Ahrens, T.J.; Chen, G.Q. & Holland, K.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved Evolutionary Hybrids for Flexible Ligand Docking in Autodock

Description: In this paper we evaluate the design of the hybrid evolutionary algorithms (EAs) that are currently used to perform flexible ligand binding in the Autodock docking software. Hybrid EAs incorporate specialized operators that exploit domain-specific features to accelerate an EA's search. We consider hybrid EAs that use an integrated local search operator to reline individuals within each iteration of the search. We evaluate several factors that impact the efficacy of a hybrid EA, and we propose n… more
Date: January 27, 1999
Creator: Belew, Richard K.; Hart, William E.; Morris, Garrett M. & Rosin, Chris
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Titanium K-Shell X-Ray Production from High Velocity Wire Arrays Implosions on the 20-MA Z Accelerator

Description: The advent of the 20-MA Z accelerator [R.B. Spielman, C. Deeney, G.A. Chandler, et al., Phys. Plasmas 5, 2105, (1997)] has enabled implosions of large diameter, high-wire-number arrays of titanium to begin testing Z-pinch K-shell scaling theories. The 2-cm long titanium arrays, which were mounted on a 40-mm diameter, produced between 75{+-}15 to 125{+-}20 kJ of K-shell x-rays. Mass scans indicate that, as predicted, higher velocity implosions in the series produced higher x-ray yields. Spectros… more
Date: January 27, 1999
Creator: Apruzese, J.P.; Beg, F.N.; Clark, R.C.; Coverdale, C.A.; Davis, J.; Deeney, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Petroleum--Project Fact Sheet: A Motor Challenge Success Story

Description: By upgrading its motor systems at its Richmond, California, refinery, Chevron was able to realize cost savings of more than $700,000 per year, in addition to reduced energy consumption of approximately 1 million kilowatts per month and improved equipment reliability and process control. Order this fact sheet to find out how they did it.
Date: January 27, 1999
Creator: Ericksen, E.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Chemicals: Optimizing Electric Motor Systems at a Corporate Campus Facility (Technical Case Study)

Description: After conducting an in-house motor system performance evaluation, 3M managed to reduce electricity use by 41%, decrease kilowatt demand by 20%, and reduce steam and chilled water use. Order your copy now and read how the Minnesota-based company was able to do it.
Date: January 27, 1999
Creator: Ericksen, E.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Torsion Testing of Diffusion Bonded LIGA Formed Nickel

Description: A test technique has been devised which is suitable for the testing of the bond strength of batch diffusion bonded LIGA or DXRL defined structures. The method uses a torsion tester constructed with the aid of LIGA fabrication and distributed torsion specimens which also make use of the high aspect ratio nature of DXRL based processing. Measurements reveal achieved bond strengths of 130MPa between electroplated nickel with a bond temperature of 450 C at 7 ksi pressure which is a sufficiently low… more
Date: January 27, 1999
Creator: Buchheit, T.E.; Christenson, T.R. & Schmale, D.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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