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RETRIEVAL EVENTS EVALUATION

Description: The purpose of this analysis is to evaluate impacts to the retrieval concept presented in the Design Analysis ''Retrieval Equipment and Strategy'' (Reference 6), from abnormal events based on Design Basis Events (DBE) and Beyond Design Basis Events (BDBE) as defined in two recent analyses: (1) DBE/Scenario Analysis for Preclosure Repository Subsurface Facilities (Reference 4); and (2) Preliminary Preclosure Design Basis Event Calculations for the Monitored Geologic Repository (Reference 5) The … more
Date: November 12, 1999
Creator: Wilson, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Defense Logistics: Army Should Assess Cost and Benefits of the Workload Performance System Expansion

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Army's study of its master plan for implementing its Workload Performance System, focusing on the: (1) Army's progress in developing and implementing the workload performance system; and (2) extent to which the Army's April 1999 report to the House Committee on National Security addresses an overall master plan for implementing the system, including the s… more
Date: November 12, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Drillrod/Telemetry Radar

Description: Efficient extraction of deeply buried natural resources is dependent upon accurate geologic models. The model becomes the basis for developing plans for extraction of the resource. Geoscientists working in geothermal and hydrocarbon recovery have a great deal in common with fellow geoscientists working in the mining industry. They appreciate the intractable problem of increasing the depth of investigation to tens of meters from the wellbore. The goal of this project was to develop a borehole ra… more
Date: November 12, 1999
Creator: Raton Technology Research, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sensitivity to low-dose radiation in radiosensitive wasted mice

Description: Mice homozygous for the autosomal recessive wasted mutation (wst/wst) have abnormalities in T-lymphocytes and in the anterior motor neuron cells of the spinal cord, leading to sensitivity to low doses of ionizing radiation, hind limb paralysis, and immunodeficiency. This defect results in a failure to gain weight by 20 days and death at 28 days of age. The wasted mutation (previously mapped to mouse chromosome 2) is shown to be a 3-bp deletion in a T-cell-specific (and perhaps motor-neuron-spec… more
Date: November 12, 1999
Creator: Paunesku, T.; Protic, M. & Woloschak, G. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Influence of specimen design on the ductility of zircaloy cladding: Experiment and analysis

Description: In a reactivity-initiated accident (RIA), a control rod ejection or drop causes a sudden increase in reactor power, which in turn deposits a large amount of energy into the fuel. The resulting thermal expansion and fission gas release loads the cladding into the plastic regime and may cause it to fail. In order to predict cladding survivability, there has been considerable interest and effort in supplementing integral WA tests with separate-effects ring tests of cladding tubes. Such tests can g… more
Date: November 12, 1999
Creator: Bates, D. W.; Majumdar, S.; Koss, D. A. & Motta, A. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The effect of laser welding process parameters on the mechanical and microstructural properties of V-4CR-4TI structural materials.

Description: V-Cr-Ti alloys are among the leading candidate materials for the frost wall and other structural materials applications in fusion power reactors because of several important advantages including inherently low irradiation-induced activity, good mechanical properties, good compatibility with lithium, high thermal conductivity and good resistance to irradiation-induced swelling and damage [1]. However, weldability of these alloys in general must be demonstrated, and laser welding, specifically, m… more
Date: November 12, 1999
Creator: Reed, C. B.; Natesan, K.; Xu, Z. & Smith, D. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Structural evaluation of electrosleeved tubes under severe accident transients.

Description: A flow stress model was developed for predicting failure of Electrosleeved PWR steam generator tubing under severe accident transients. The Electrosleeve, which is nanocrystalline pure nickel, loses its strength at temperatures greater than 400 C during severe accidents because of grain growth. A grain growth model and the Hall-Petch relationship were used to calculate the loss of flow stress as a function of time and temperature during the accident. Available tensile test data as well as high … more
Date: November 12, 1999
Creator: Majumdar, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Pulte homes - Las Vegas, Nevada: Cost-saving system trade-offs for hot, dry climates: Building America fact sheet

Description: Building America houses in Las Vegas, Nevada, are using state-of-the-art building materials and systems to provide residents with much lower energy bills than standard construction. The houses use unvented roofs, high-performance windows, and combo domestic hot-water and air-conditioning units.
Date: November 12, 1999
Creator: Hendron, B.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Estimates of thermal fatigue due to beam interruptions for an ALMR-type ATW

Description: Thermal fatigue due to beam interruptions has been investigated in a sodium cooled ATW using the Advanced Liquid Metal mod B design as a basis for the subcritical source driven reactor. A k{sub eff} of 0.975 was used for the reactor. Temperature response in the primary coolant system was calculated, using the SASSYS- 1 code, for a drop in beam current from full power to zero in 1 microsecond.. Temperature differences were used to calculate thermal stresses. Fatigue curves from the American Soci… more
Date: November 12, 1999
Creator: Dunn, F. E. & Wade, D. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

PULVERIZATION INDUCED CHARGE: IN-LINE DRY COAL CLEANING

Description: The technical feasibility of separating mineral matter and pyrite from coal as it is transported from pulverizers to burners in pulverized coal combustion units is examined. The charge imparted on coal during pulverization and transport to pulverized coal (PC) burners in a utility boiler is quantified. In addition to field charge measurements, an existing computational model is extended to numerically simulate charged particle motion in a turbulent gas through coal transport pipes and triboelec… more
Date: November 12, 1999
Creator: Stencel, John M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fission gas release from UO{sub 2+x} in defective light water reactor fuel rods

Description: A simplified semi-empirical model predicting fission gas release form UO{sub 2+x} fuel to the fuel rod plenum as a function of stoichiometry excess (x) is developed to apply to the fuel of a defective LWR fuel rod in operation. The effect of fuel oxidation in enhancing gas diffusion is included as a parabolic dependence of the stoichiometry excess. The increase of fission gas release in a defective BWR fuel rod is at the most 3 times higher than in an intact fuel rod because of small extent of … more
Date: November 12, 1999
Creator: Skim, Y. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Intermetallic insertion anodes for lithium batteries.

Description: Binary intermetallic compounds containing lithium, or lithium alloys, such as Li{sub x}Al, Li{sub x}Si and Li{sub x}Sn have been investigated in detail in the past as negative electrode materials for rechargeable lithium batteries. It is generally acknowledged that the major limitation of these systems is the large volumetric expansion that occurs when lithium reacts with the host metal. Such large increases in volume limit the practical use of lithium-tin electrodes in electrochemical cells. I… more
Date: November 12, 1999
Creator: Thackeray, M. M.; Vaughey, J.; Johnson, C. S. & Kepler, K. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Note on RHIC polarimetry.

Description: For physics measurements with polarized colliding beams, beam polarizations and relative luminosities must both be determined. Predictions for spin observables of many interesting physics processes at RHIC are quite small in magnitude. This requires high statistics measurements of relative luminosities and careful control of systematic errors. Discussions about the polarized beams at RHIC often presume that the polarization and intensity of each bunch within a will be known quite well from meas… more
Date: November 12, 1999
Creator: Spinka, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Catalytic membrane program. Quarterly report for the period August 1999--October 1999

Description: For both power generation and pipeline-quality gas applications, the projected performance of the membrane currently under development is economically attractive. Aspects of membrane development include hollow fiber substrate production, reproducibility of membrane synthesis, chemical vapor deposition as a post treatment technique, and testing of membrane thermal and hydrothermal stability.
Date: November 12, 1999
Creator: Liu, Paul K.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electron, Photon, and Ion Beams from the Relativistic Interaction of Petawatt Laser Pulses with Solid Targets

Description: In our Petawatt laser experiments several hundred joules of 1 {micro}m laser light in 0.5-5.0 ps pulses with intensities up to 3 x 10{sup 20}Wcm{sup -2} were incident on solid targets producing a strongly relativistic interaction. The energy content, spectra, and angular patterns of the photon, electron, and ion radiations were diagnosed in a number of ways, including several novel (to laser physics) nuclear activation techniques. From the beamed bremsstrahlung we infer that about 40-50% of the… more
Date: November 12, 1999
Creator: Hatchett, S. P.; Brown, C. G.; Cowan, T. E.; Henry, E. A.; Johnson, J.; Key, M. H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Issues related to setting exemption levels for oil and gas NORM

Description: In the absence of any federal regulations that specifically address the handling and disposal of wastes containing naturally occurring radioactive material (NORM), individual states have taken responsibility for developing their own regulatory programs for NORM. A key issue in developing NORM rules is defining exemption levels--specific levels or concentrations that determine which waste materials are subject to controlled management. In general, states have drawn upon existing standards and gu… more
Date: November 12, 1999
Creator: Blunt, D. L.; Gooden, D. S. & Smith, K. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Performance limits of fusion first-wall structural materials.

Description: Key features of fusion energy relate primarily to potential advantages associated with safety and environmental considerations and the near endless supply of fuel. However, it is generally concluded that high performance fusion power systems will be required in order to be economically competitive with other energy options. As in most energy systems, structural materials operating limits pose a primary constraint to the performance of fusion power systems. It is also recognized that for the cas… more
Date: November 12, 1999
Creator: Smith, D. L.; Majumdar, S.; Billone, M. & Mattas, R. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

[Classroom and Enrichment Teacher Mentor Review at Daggett School by Nancy Walkup]

Description: An insightful documented mentor review conducted by Nancy Walkup, focusing on all classrooms and enrichment teachers at Daggett School. Nancy Walkup's comprehensive assessment provides valuable feedback on teaching methodologies, classroom environments, and the effectiveness of enrichment programs.
Date: November 12, 1999
Creator: Walkup, Nancy
Item Type: Refine your search to only Report
Partner: UNT Libraries Special Collections
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