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Uncertainty: a discriminator for above and below boiling repository design decisions

Description: The US nuclear waste disposal program is evaluating the Yucca Mountain (YM) site for possible disposal of nuclear waste. Radioactive decay of the waste, particularly spent fuel, generates sufficient heat to significantly raise repository temperatures. Environmental conditions in the repository system evolve in response to this heat. The amount of temperature increase, and thus environmental changes, depends on repository design and operations. Because the evolving environment cannot be directly… more
Date: November 14, 2000
Creator: Wilder, D G; Lin, W; Buscheck, T A; Wolery, T J & Francis, N D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Near Field Environment Process Model Report

Description: Waste emplacement and activities associated with construction of a repository system potentially will change environmental conditions within the repository system. These environmental changes principally result from heat generated by the decay of the radioactive waste, which elevates temperatures within the repository system. Elevated temperatures affect distribution of water, increase kinetic rates of geochemical processes, and cause stresses to change in magnitude and orientation from the str… more
Date: November 14, 2000
Creator: Wagner, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemical and Biological Defense: Units Better Equipped, but Training and Readiness Reporting Problems Remain

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Pentagon believes that chemical and biological weapons are likely to be used early in a conflict to disrupt U.S. operations and logistics and to potentially offset the overwhelming conventional warfare capabilities of U.S. forces; however, studies have confirmed that U.S. forces are not fully prepared to defend against chemical or biological weapons and could suffer significant casualties if they are used.… more
Date: November 14, 2000
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Budget FY2001: A Chronology with Internet Access

Description: This is a select chronology of, and a finding guide for information on, congressional and presidential actions and documents related to major budget events in calendar year 2000, covering the FY2001 budget. Brief information is provided for the President’s budget, congressional budget resolutions, appropriations measures (regular, continuing, supplementals, and rescissions), budget reconciliation, House and Senate votes, line-item vetoes, publications, testimony, charts, and tables.
Date: November 14, 2000
Creator: Thomas, Pearl
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clean Air Act Issues in the 106th Congress

Description: The Clean Air Act and its 1990 amendments appear to have contributed to a marked improvement in air quality nationwide. Of nearly 100 metropolitan areas not meeting air quality standards for ozone in 1990, more than two-thirds now do so. Even greater progress has been achieved with carbon monoxide: 36 of 42 areas not in attainment in 1990 now meet the standard. Nevertheless, EPA remains concerned about air pollution. In 1997, the Agency promulgated major revisions to its air quality standards f… more
Date: November 14, 2000
Creator: McCarthy, James E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Refugee Assistance in the Foreign Aid Bill: Problems and Prospects

Description: The United States is the largest national contributor to international humanitarian assistance programs for refugees. Traditionally, we contribute to refugee appeals both because of our wish to alleviate the suffering of innocent victims and out of concern that refugee flows can lead to instability in countries or regions important to U.S. foreign policy interests.
Date: November 14, 2000
Creator: McHugh, Lois B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fully differential QCD corrections to single top quark final states.

Description: The authors have performed a fully differential calculation of QCD corrections to electroweak production of single top quarks. The method used allows for jet definitions and experimental cuts. The corresponding computer code passes the necessary check of reproducing the previously known total rate. First examination of the rapidity and transverse momentum of the top quark shows the corrections to be flat relative to leading order. Additional phenomenological studies are in order. Further work i… more
Date: November 14, 2000
Creator: Harris, B. W.; Laenen, E.; Phaf, L.; Sullivan, Z. & Weinzierl, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Alternative Fuel News, Volume 4, Number 3

Description: This issue of Alternative Fuel News focuses on transit buses and refuse haulers. Many transit agencies and waste management companies are investigating alternatives to traditional diesel buses and refuse haulers.
Date: November 14, 2000
Creator: Ficker, C.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Characteristics of hydride precipitation and reorientation in spent-fuel cladding.

Description: The morphology, number density, orientation, distribution, and crystallographic aspects of Zr hydrides in Zircaloy fuel cladding play important roles in fuel performance during all phases before and after discharge from the reactor, i.e., during normal operation, transient and accident situations in the reactor, temporary storage in a dry cask, and permanent storage in a waste repository. In the past, partly because of experimental difficulties, hydriding behavior in irradiated fuel cladding ha… more
Date: November 14, 2000
Creator: Chung, H. M.; Strain, R. V. & Billone, M. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Raman Forward Scattering in Plasma Channels

Description: Raman scattering instability of an intense laser pulse in a plasma channel proceeds differently than in a homogeneous plasma: the growth rate is reduced and the scaling with the laser intensity modified. These differences, significant even for shallow plasma channels, arise because of the radial shear of the plasma frequency and the existence of the weakly damped hybrid (electrostatic/electromagnetic) modes of the radially inhomogeneous plasma. The interplay of these two effects produces double… more
Date: November 14, 2000
Creator: Shvets, G. & Li, X.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Smooth- and enhanced-tube heat transfer and pressure drop : Part I. Effect of Prandtl number with air, water, and glycol/water mixtures.

Description: An extensive experimental investigation was carried out to determine the pressure drop and heat transfer characteristics in laminar, transitional, and turbulent flow through one smooth tube and twenty-three enhanced tubes. The working fluids for the experiments were air, water, ethylene glycol, and ethylene glycol/water mixtures; Prandtl numbers (Pr) ranged from 0.7 to 125.3. The smooth-tube experiments were carried out with Pr values of 0.7, 6.8, 24.8, 39.1, and 125.3; Pr values of 0.7, 6.8, a… more
Date: November 14, 2000
Creator: Obot, N. T.; Das, L. & Rabas, T. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Studies of cosolvent systems in supercritical ethane using solvated electrons.

Description: In this paper, pulse-radiolytic studies of the methanol-ethane cosolvent system are carried out. Our results show that at temperatures below approximately 110 C, there are high local concentrations of alcohols (clusters) that are capable of solvating an electron, suggesting a size of approximately 4-5 methanol molecules at approximately 0.15 mole fraction alcohol. Reactions have been carried out between these solvated electrons and silver ions that are (presumably) dissolved in other small clus… more
Date: November 14, 2000
Creator: Dimitrijevic, N. M.; Bartels, D. M.; Jonah, C. D. & Takahashi, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Smooth- and enhanced-tube heat transfer and pressure drop : Part II. The role of transition to turbulent flow.

Description: The objectives of this presentation are two-fold: first, to demonstrate the connection between the attainable coefficients and transition to turbulent flow by using the transition-based corresponding states method to generalize results obtained with smooth tubes and enhanced tubes, and second, to provide guidelines on the calculation of heat transfer coefficients from pressure-drop data and vice versa by using the transition concept or the functional law of corresponding states.
Date: November 14, 2000
Creator: Obot, N. T.; Das, L. & Rabas, T. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Laser-Induced Breakdown Spectroscopy as Technetium Monitor

Description: The analytical figure of merit of a laser-induced breakdown (LIBS) system was evaluated for technetium measurements in liquid. LIBS data of elements that have similar properties to Tc such as Cr, Mn, and Re were studied. Various optical geometries which produce the laser spark in and at the liquid sample were tested. The calibration curve for Mn, Cr, and Re were obtained at the optimized experimental conditions with bulk liquid and liquid jet. We found that measurements using a liquid jet provi… more
Date: November 14, 2000
Creator: Spencer, W. A.; Yueh, F. Y.; Sharma, R. C.; Singh, J. P. & Zhang, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Scanning Tunneling Microscopy Study of As/Ge(mnn) and P/Ge(mnn) Surfaces

Description: Ge(mnn) surfaces between (100) and (111) were annealed under either arsine or phosphine in a metal-organic chemical vapor deposition chamber, then imaged with a scanning tunneling microscope. In general, arsine-exposed Ge surfaces are facetted, while phosphine-exposed surfaces remain flat. For the arsine-exposed Ge surfaces, four stable facetting directions have been identified: (100), (11,3,3), (955), and (111).
Date: November 14, 2000
Creator: McMahon, W. E. & Olsen, J. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Review of US Nanocorp - SNL Joint Development of Thermal-Sprayed Thin-Film Cathodes for Thermal Batteries

Description: The use of plasma spray to deposit thin metal-sulfide cathode films is described in this paper. Conventional electroactive stack components in thermal batteries are constructed from pressed-powder parts that are difficult to fabricate in large diameters in thicknesses <0.010. Plasma-sprayed electrodes do not steer from this difficulty, allowing greater energy densities and specific energies to be realized. Various co-spraying agents have been found suitable for improving the mechanical as we… more
Date: November 14, 2000
Creator: GUIDOTTI,RONALD A.; REINHARDT,FREDERICK W.; DAI,JINXIANG; XIAO,T. DANNY & REISNER,DAVID E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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