Search Results

open access

45-day safety screen results and final report for tank 241-C-202, auger samples 95-Aug-026 and 95-Aug-027

Description: Two auger samples from tank 241-C-202 (C-202) were received at the 222-S Laboratories and underwent safety screening analysis, consisting of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and total alpha activity. Two samples were submitted for energetics determination by DSC. Within the triplicate analyses of each sample, one of the results for energetics exceeded the notification limit. The sample and duplicate analyses for both augers exceeded the notification lim… more
Date: June 19, 1995
Creator: Baldwin, J.H.
Partner: UNT Libraries Government Documents Department
open access

US energy industry financial developments, First quarter 1995

Description: This report traces key developments in US energy companies` financial performance for the first quarter of 1995. Financial data (only available for publicly-traded US companies) are included in two broad groups -- fossil fuel production and rate-regulated utilities. All financial data are taken from public sources such as corporate reports and press releases, energy trade publications, and The Wall Street Journal`s Earnings Digest. Return on equity is calculated from data available from Standar… more
Date: June 19, 1995
Partner: UNT Libraries Government Documents Department
open access

Performance of the beamlet laser, a testbed for the National Ignition Facility

Description: We present initial performance studies for Beamlet, a single-beam prototype for megajoule-class neodymium-glass laser fusion drivers using a multipass main amplifier, adaptive optics, and efficient, high-fluence conversion to the third harmonic. The Beamlet final amplifier uses Brewsters-angle glass slabs with a square 39 {times} 39 cm{sup 2} aperture and a full-aperture plasma-electrode Pockels cell switch. The laser has been tested at the fundamental wavelength over a range of pulselengths fr… more
Date: June 19, 1995
Creator: Van Wonterghem, B. M.; Caird, J. A.; Barker, C. E.; Campbell, J. H.; Murray, J. R. & Speck, D. R.
Partner: UNT Libraries Government Documents Department
open access

Environmental restoration at the Pantex Plant. Quarterly progress report, April 12, 1995--June 30, 1995

Description: This report summarizes the Work Plans for activities associated with Environmental Restoration of the perched aquifer and contaminated soils at the Pantex Plant. The Higher Education Consortium/Pantex Research Laboratory is participating in the Consortium Grant to evaluate subsurface remediation alternatives for the perched aquifer at the Pantex Plant. Research activities will develop site characterization data and evaluate remediation alternatives for the perched aquifer and the overlying vado… more
Date: June 19, 1995
Creator: Charbeneau, R. J.
Partner: UNT Libraries Government Documents Department
open access

Multilayer Thin Film Thermoelectrics Produced by Sputtering

Description: In this work we explore the possibility of achieving bulk electrical properties in single layer sputter deposited films grown epitaxially on (111) oriented BaF{sub 2} substrates. There are a number of sputter deposition parameters that can be varied in order to optimize the film quality. It is important to understand the effect of varying the deposition temperature, Ar sputtering gas pressure, and the substrate bias. We will consider only Bi and Bi{sub 0.86}Sb{sub 0.14} films in this paper. The… more
Date: June 19, 1995
Creator: Wagner, A. V.; Foreman, R. J.; Summers, L. J.; Barbee, T. W., Jr. & Farmer, J. C.
Partner: UNT Libraries Government Documents Department
open access

Test plan for phase II of the Retained Gas Sampler system

Description: The Retained Gas Sampler (RGS) system is being developed to permit characterization of the gas phase component of waste tank core samples. Several laboratory experiments have been conducted which have affirmed the proof-of-principle for separating the gas phase materials from waste tank material in a quantitative manner. However, experiments conducted thus far have dealt only with representative materials and simulated hardware mock-ups. This test plan deals with the operation and testing of ac… more
Date: June 19, 1995
Creator: Hey, B.E.
Partner: UNT Libraries Government Documents Department
open access

Synthesis and study of novel silicon-based unsaturated polymers

Description: Novel unsaturated polymers have been synthesized and studied as precursors to silicon carbide and third order nonlinear optical materials. X ray structures were obtained. Kinetic and mechanistic studies of the unique thermal isomerization of dimethylenedisilacyclobutane to a carbene were conducted.
Date: June 19, 1995
Creator: Lin, J.
Partner: UNT Libraries Government Documents Department
open access

Investigation of the use of fly-ash based autoclaved cellular concrete blocks in coal mines for air duct work. Final report, January 25, 1993--December 31, 1994

Description: Coal mines are required to provide ventilation to occupied portions of underground mines. Concrete block is used in this process to construct air duct walls. However, normal concrete block is heavy and not easy to work with and eventually fails dramatically after being loaded due to mine ceiling convergence and/or floor heave. Autoclaved cellular concrete block made from (70{plus_minus}%) coal fly ash is lightweight and less rigid when loaded. It is lighter and easier to use than regular concre… more
Date: June 19, 1995
Creator: Horvath, M.L.
Partner: UNT Libraries Government Documents Department
open access

Solid Waste Assurance Program Implementation Plan

Description: On June 6, 1995, a waiver to Hanford Site Solid Waste Acceptance Criteria, was approved by the US Department of Energy Richland Operations Office (RL) to replace the low-level, mixed, and transuranic (TRU) generator assessment programs with the Solid Waste Assurance Program (SWAP). This is associated with a waiver that was approved on March 16, 1995 to replace the Storage/Disposal Approval Record (SDAR) requirements with the Waste Specification System (WSS). This implementation plan and the SWA… more
Date: June 19, 1995
Creator: Irons, L.G.
Partner: UNT Libraries Government Documents Department
open access

Computed isotopic inventory and dose assessment for SRS fuel and target assemblies

Description: Past studies have identified and evaluated important radionuclide contributors to dose from reprocessed spent fuel sent to waste for Mark 16B and 22 fuel assemblies and for Mark 31 A and 31B target assemblies. Fission-product distributions after a 5- and 15-year decay time were calculated for a ``representative`` set of irradiation conditions (i.e., reactor power, irradiation time, and exposure) for each type of assembly. The numerical calculations were performed using the SHIELD/GLASS system o… more
Date: June 19, 1995
Creator: Chandler, M.C.; Ketusky, E.T. & Thoman, D.C.
Partner: UNT Libraries Government Documents Department
open access

Magnetization studies of oxides related to the high temperature cuprate superconductors

Description: The magnetic properties related to the following high temperature superconductors were measured utilizing a Faraday magnetometer: BaCuO{sub 2+x}, La{sub 2} CuO{sub 4}, Sr{sub 2} RhO{sub 4}, Sr{sub 2} VO{sub 4}, and Sr{sub 2} CuO{sub 3}. Neutron diffraction, magnetic susceptibility, and heat capacity measurements are discussed.
Date: June 19, 1995
Creator: Wang, Z.
Partner: UNT Libraries Government Documents Department
open access

Instrumentation for the determination of material properties from spectroscopic measurements of total integrated scatter

Description: A variety of important optical properties can be determined from spectroscopic analysis of diffuse reflectance of surfaces. The design of a small user friendly, light-weight, field hardened, computer controlled device for performing infrared spectroscopic analysis of trace contaminants on surfaces is described. The device employs a miniature Fourier transform infrared (FTIR) spectrometer with very efficient diffuse reflectance optics and a portable computer to provide reflectance spectra of sur… more
Date: June 19, 1995
Creator: Powell, G. L.; Barber, T. E. & Neu, J. T.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Juneteenth]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1995, 6:00 p.m.
Duration: 1 minute 50 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Simpson]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1995, 5:00 p.m.
Duration: 51 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Electric power monthly, June 1995 with data for March 1995

Description: The Coal and Electric Data and Renewables Division; Office of Coal, Nuclear, Electric and Alternate Fuels, Energy Information Administration (EIA), Department of Energy prepares the EPM. This publication provides monthly statistics at the State, Census division, and US levels for net generation, fossil fuel consumption and stocks, quantity and quality of fossil fuels, cost of fossil fuels, electricity sales, revenue, and average revenue per kilowatthour of electricity sold. Data on net generati… more
Date: June 19, 1995
Partner: UNT Libraries Government Documents Department
open access

China Policy: Managing U.S.-PRC-Taiwan Relations After President Lee's Visit to the U.S.

Description: fallout of Taiwan President Lee Teng-hui's June 1995 visit to the United States has included a carefully calibrated PRC effort to cut off or suspend contacts and communications with the United States and Taiwan over a range of important policy questions. Prospects for a resumption of these contacts are unclear, especially since domestic politics in Beijing,
Date: June 19, 1995
Creator: Sutter, Robert G.
Partner: UNT Libraries Government Documents Department
open access

Sub-micron scale conduction processes on clean surfaces

Description: Electrical conductance has been measured in-situ in two dimensions in the Ag/Si(111) system as a function of incident adatom flux rate with a 4-probe method. A conductance study in a 3-D conical structure was also made using field emission. For the 2-D study, the origin of conduction is still unclear, as transport by percolating Ag clusters and conduction through the substrate lvia electrons from the film have both been suggested. Experiments varying the flux rate were conducted to decide betwe… more
Date: June 19, 1995
Creator: Kimberlin, K.
Partner: UNT Libraries Government Documents Department
open access

A comparison of an elliptical multipole wiggler and crystal optics for the production of circularly polarized x-rays

Description: Recently, there has been a great deal of interest in polarization modulated x-ray diffraction and spectroscopy techniques. In particular, the importance of photon helicity in spin-dependent magnetic interactions has expanded the need for high quality circularly polarized x-ray sources with fast switching capabilities. Because circularly polarized photons couple differently with the magnetic moment of an atom than do neutrons, they are able to provide unique magnetic information not accessible b… more
Date: June 19, 1995
Creator: Lang, J. C.; Srajer, G. & Dejus, R. J.
Partner: UNT Libraries Government Documents Department
open access

New electrolyte systems for capillary zone electrophoresis of metal cations and non-ionic organic compounds

Description: Excellent separations of metal ions can be obtained very quickly by capillary electrophoresis provided a weak complexing reagent is incorporated into the electrolyte to alter the effective mobilities of the sample ions. Indirect photometric detection is possible by also adding a UV-sensitive ion to the electrolyte. Separations are described using phthalate, tartrate, lactate or hydroxyisobutyrate as the complexing reagent. A separation of twenty-seven metal ions was achieved in only 6 min using… more
Date: June 19, 1995
Creator: Shi, Y.
Partner: UNT Libraries Government Documents Department
open access

Oxidation and creep behavior of Mo*5*Si*3* based materials

Description: Mo{sub 5}Si{sub 3} shows promise as a high temperature creep resistant material. The high temperature oxidation resistance of Mo{sub 5}Si{sub 3} has been found to be poor, however, limiting its use in oxidizing atmospheres. Undoped Mo{sub 5}Si{sub 3} exhibits mass loss in the temperature range 800{degrees}-1200{degrees}C due to volatilization of molybdenum oxide, indicating that the silica scale does not provide a passivating layer. The addition of boron results in protective scale formation an… more
Date: June 19, 1995
Creator: Meyer, Mitch
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Juneteenth]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1995, 5:00 p.m.
Duration: 36 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Cop Back]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1995, 10:00 p.m.
Duration: 2 minutes 06 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Tuition]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 19, 1995, 6:00 p.m.
Duration: 1 minute 47 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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