Search Results

open access

The Social Security Administration's Decentralized Computer Strategy: Issues and Options

Description: The report highlights some of the opportunities and challenges faced by a major federal agency in: 1 ) implementing the Administration’s “National Performance Review and “National Information Infrastructure” programs, and 2) addressing issues raised in OTA’s 1993 report Making Government Work: Electronic Delivery of Federal Services.
Date: April 1994
Creator: United States. Congress. Office of Technology Assessment.
Partner: UNT Libraries Government Documents Department
open access

High-level waste storage tank farms/242-A evaporator Standards/Requirements Identification Document (S/RID), Volume 7. Revision 1

Description: The High-Level Waste Storage Tank Farms/242-A Evaporator Standards/Requirements Identification Document (S/RID) is contained in multiple volumes. This document (Volume 7) presents the standards and requirements for the following sections: Occupational Safety and Health, and Environmental Protection.
Date: April 1, 1994
Creator: Burt, D. L.
Partner: UNT Libraries Government Documents Department
open access

Epitaxial growth of bcc transition metal films and superlattices onto MgO (111), (011) and (001) substrates

Description: We demonstrate epitaxial growth of the bcc transition metals Nb, Mo, Fe, and Cr via sputtering onto single crystal MgO substrates. The epitaxial growth orientations are (011), (112) and (001) when grown onto MgO (111), (011) and (001), respectively. Further we demonstrate that under appropriate growth conditions, superlattices of these materials (e.g., Fe/Cr, Fe/V and Mo/V) can be grown with the same epitaxial order as the films.
Date: April 1, 1994
Creator: Mattson, J. E.; Fullerton, E. E.; Sowers, C. H. & Bader, S. D.
Partner: UNT Libraries Government Documents Department
open access

Development of a three-dimensional groundwater flow model for Western Melton Valley: Application of P-FEM on a DOE waste site

Description: Modeling the movement of hazardous waste in groundwater was identified by the US Department of Energy (DOE) as one of the grand challenges in scientific computation. In recognition of this need, DOE has provided support for a group of scientists from several national laboratories and universities to conduct research and development in groundwater flow and contaminant transport modeling. This group is part of a larger consortium of researchers, collectively referred to as the Partnership in Comp… more
Date: April 1, 1994
Creator: West, O. R. & Toran, L. E.
Partner: UNT Libraries Government Documents Department
open access

Characterization of wafer charging mechanisms and oxide survival prediction methodology

Description: Unipolar, EEPROM-based peak potential sensors and current sensors have been used to characterize the I-V relationship of charging transients which devices normally experience during the course of ion implantation. The results indicate that the charging sources may appear to behave like current-sources or voltage-sources, depending on the impedance of the load. This behavior may be understood in terms of plasma concepts. The ability to empirically characterize the I-V characteristics of charging… more
Date: April 1, 1994
Creator: Lukaszek, W.; Dixon, W.; Vella, M.; Messick, C.; Reno, S. & Shideler, J.
Partner: UNT Libraries Government Documents Department
open access

High level waste storage tank farms/242-A evaporator Standards/Requirements Identification Document (S/RID), Volume 6

Description: The High-Level Waste Storage Tank Farms/242-A Evaporator Standards/Requirements Identification Document (S/RID) is contained in multiple volumes. This document (Volume 6) outlines the standards and requirements for the sections on: Environmental Restoration and Waste Management, Research and Development and Experimental Activities, and Nuclear Safety.
Date: April 1, 1994
Partner: UNT Libraries Government Documents Department
open access

Mobile zone, spray booth ventilation system. Final report

Description: This concept endeavors to reduce the volume of air (to be treated) from spray paint booths, thereby increasing efficiency and improving air pollution abatement (VOC emissions especially). Most of the ventilation air is recycled through the booth to maintain laminar flow; the machinery is located on the supply side of the booth rather than on the exhaust side. 60 to 95% reduction in spray booth exhaust rate should result. Although engineering and production prototypes have been made, demand is l… more
Date: April 26, 1994
Partner: UNT Libraries Government Documents Department
open access

High-level waste storage tank farms/242-A evaporator standards/requirements identification document (S/RID), Vol. 4

Description: Radiation protection of personnel and the public is accomplished by establishing a well defined Radiation Protection Organization to ensure that appropriate controls on radioactive materials and radiation sources are implemented and documented. This Requirements Identification Document (RID) applies to the activities, personnel, structures, systems, components, and programs involved in executing the mission of the Tank Farms. The physical boundaries within which the requirements of this RID app… more
Date: April 1, 1994
Partner: UNT Libraries Government Documents Department
open access

Cadmium verification measurements of HFIR shroud assembly 22

Description: This report discusses radiation-based nondestructive examination methods which have been used to successfully verify the presence of cadmium in High Flux Isotope Reactor (HFIR) spent-fuel shroud assembly number 22 (SA22). These measurements show, in part, that SA22 is certified to meet the criticality safety specifications for a proposed reconfiguration of the HFIR spent-fuel storage array. Measurement of the unique 558.6-keV gamma-ray from neutron radiative capture on cadmium provided conclusi… more
Date: April 1, 1994
Creator: Chapman, J. A. & Schultz, F. J.
Partner: UNT Libraries Government Documents Department
open access

Technology Evaluation Workshop Report for Tank Waste Chemical Characterization

Description: A Tank Waste Chemical Characterization Technology Evaluation Workshop was held August 24--26, 1993. The workshop was intended to identify and evaluate technologies appropriate for the in situ and hot cell characterization of the chemical composition of Hanford waste tank materials. The participants were asked to identify technologies that show applicability to the needs and good prospects for deployment in the hot cell or tanks. They were also asked to identify the tasks required to pursue the … more
Date: April 1, 1994
Creator: Eberlein, S. J.
Partner: UNT Libraries Government Documents Department
open access

Advanced hydrogen/method utilization technology demonstration. Final report

Description: The overall objective of the work was to seek homogeneous blend ratios of hydrogen:methane that provide ``leverage`` with respect to exhaust emissions or engine performance. The leverage sought was a reduction in exhaust emissions or improved efficiency in proportions greater than the percentage of hydrogen energy in the blended fuel gas mixture. The scope of the study included the range of air/fuel mixtures from the lean limit to slightly richer than stoichiometric. This encompasses two import… more
Date: April 1, 1994
Creator: Lynch, F. & Fulton, J.
Partner: UNT Libraries Government Documents Department
open access

Liquid low-level waste generation projections for ORNL in 1993

Description: Liquid low-level waste (LLLW) is generated by various programs and projects throughout Oak Ridge National Laboratory (ORNL). These wastes are collected in underground collection tanks, bottles, and trucks; they are then neutralized with sodium hydroxide and treated for volume reduction at the ORNL evaporator facility. This report presents historical and projected data concerning the volume and characterization of LLLW, prior to and after evaporation. Storage space for projected waste generation… more
Date: April 1, 1994
Creator: DePaoli, S. M.
Partner: UNT Libraries Government Documents Department
open access

Applications of Monte Carlo methods for the analysis of MHTGR case of the PROTEUS benchmark

Description: Monte Carlo methods, as implemented in the MCNP code, have been used to analyze the neutronics characteristics of benchmarks related to Modular High Temperature Gas-Cooled Reactors. The benchmarks are idealized versions of the Japanes (VHTRC) and Swiss (PROTEUS) facilities and an actual configurations of the PROTEUS Configuration I experiment. The purpose of the unit cell benchmarks is to compare multiplication constants, critical bucklings, migration lengths, reaction rates and spectral indice… more
Date: April 1, 1994
Creator: Difilippo, F. C.
Partner: UNT Libraries Government Documents Department
open access

Travel to France as Chief US Delegate at a meeting of International Standards Organization ISO/TC-85, ``Nuclear Technology``. Foreign trip report, March 17--March 26, 1994

Description: As overall US Advisor for ISO/TC-85, SC-5, Dr. Westfall met with (1) Work Group 1, ``Measurement Techniques for the Chemical and Physical Characterization of UF{sub 6}, UO{sub 2}, and Mixed Oxide,`` on Monday, March 21, (2) Work Group 5, ``Standardization of Measurement Methods for the Characterization of Solid and Solidified Waste Forms, and for the Corrosion of their Primary Containers,`` on Tuesday, March 22; and (3) the full Subcommittee-5 on Wednesday, March 23. The status of work by all s… more
Date: April 11, 1994
Creator: Westfall, R. M.
Partner: UNT Libraries Government Documents Department
open access

Dynamic response of rigid tanks with inhomogeneous liquids

Description: A study of the free vibrational characteristics and of the response to horizontal ground shaking of a rigid cylindrical tank containing an inviscid liquid with a continuous vertical variation in density is presented. The response quantities examined include the vertical sloshing motions of the liquid at its free-surface, and the impulsive and convective components of the hydrodynamic wall pressures and associated tank forces. The equations of motion for the system are formulated for an arbitrar… more
Date: April 1, 1994
Creator: Shivakumar, P.; Veletsos, A. & Bandyopadhyay, K.
Partner: UNT Libraries Government Documents Department
open access

Long-Term Surveillance Plan for the Lowman, Idaho, Disposal Site. Revision 1

Description: The long-term surveillance plan (LTSP) for the Lowman, Idaho, Uranium Mill Tailings Remedial Action (UMTRA) Project disposal site describes the surveillance activities for the Lowman disposal site, which will be referred to as the Lowman site throughout this document. The US Department of Energy (DOE) will carry out these activities to ensure that the disposal cell continues to function as designed. The radioactive sands at the Lowman site were stabilized on the site. This final LTSP is being s… more
Date: April 1994
Partner: UNT Libraries Government Documents Department
open access

Combustion of pulverized coal in vortex structures. Quarterly progress report No. 2, January 1, 1994--March 31, 1994

Description: This second quarterly report describes the activities and accomplishments of the research team at the University of Oklahoma, Norman, Oklahoma, related to the project entitled ``Combustion of Pulverized Coal in Vortex Structures`` during the period January 1, 1994 to March 31, 1994. The construction of the experimental facility for generating two-dimensional shear layers containing vortex structures has been completed. Preliminary shake-down test of the test facility were conducted for debuggin… more
Date: April 1, 1994
Creator: Gollahalli, S. R.
Partner: UNT Libraries Government Documents Department
open access

Missing energy induced by thin hadron calorimetry

Description: It is relatively straightforward to estimate the total, unsegmented, depth required in SSC experiments. Typically depths in the range of 9--11 absorption lengths were specified by the SDC and GEM experiments. With these depths, the induced missing energy signal due to calorimeter leakage was found to be well below the signals caused by light gluinos, and the exterior muon systems were well protected from punch through backgrounds. In certain applications, where calorimetry is inscribed inside t… more
Date: April 1, 1994
Creator: Green, D.
Partner: UNT Libraries Government Documents Department
open access

Fourth report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

Description: In response to a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC) and selected tributaries. BMAP currently consists of six major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestrial environs on-site and the aquatic environs off-site. These tasks are (1) toxicity… more
Date: April 1, 1994
Creator: Loar, J. M.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Moisture-Induced Embrittlement of Iron Aluminides. Interim Report

Description: Alloy FA-129 undergoes an increase in crack propagation rate and a loss of fracture toughness in moisture-bearing and hydrogen gas environments. A similar effect is seen on ductility of FA-129 in tensile tests. The embrittling effect in air is attributed to oxidation of aluminum in the alloy by water vapor to produce Al{sub 2}O{sub 3} and hydrogen gas. Alloy FAP-Y, which is disordered and contains only 16 a%Al is embrittled by hydrogen gas in a manner similar to that of FA-129. However, laborat… more
Date: April 19, 1994
Creator: Castagna, A. & Stoloff, N. S.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen