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THE 2ND ERHIC WORKSHOP.
None
Date:
April 4, 2000
Creator:
Venugopalan, R. & Al, Et
Object Type:
Article
System:
The UNT Digital Library
Acceptance for Beneficial Use for the Canister Cleaning System for the K West basin Project A-2A
This documents the documentation that is required to be turned over to Operations with the Canister Cleaning System (CCS). The Acceptance for Beneficial Use will be updated as required prior to turnover. This document is prepared for the purposes of documenting an agreement among the various disciplines and organizations within the Spent Nuclear Fuel (SNF) Project as to what is required in terms of installed components of the CCS. This documentation will be used to achieve project closeout and turnover of ownership of the CCS to K Basins Operations.
Date:
April 4, 2000
Creator:
Farwick, C. C.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 101, No. 18, Ed. 1 Tuesday, April 4, 2000
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 4, 2000
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Am/Cm melter processing limitations evaluation for product loading extremes
Six vitrification runs were conducted in the 5-inch Cylindrical Induction Melter (CIM5) to evaluate the system's ability to process potential product loading extremes that may be encountered during Am/Cm vitrification in the F-Canyon MPPF. This evaluation demonstrates the CIM5 system's ability to vitrify feed streams of the specified extremes.
Date:
April 4, 2000
Creator:
Jones, T. M. & Stone, M. E.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 134, Ed. 1 Tuesday, April 4, 2000
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 4, 2000
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 95, No. 27, Ed. 1 Tuesday, April 4, 2000
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
April 4, 2000
Creator:
Keasling, Edna & Fierro, Jennifer
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Herald (Brady, Tex.), Vol. 57, No. 21, Ed. 1 Tuesday, April 4, 2000
Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
April 4, 2000
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Characterization of the atmospheric state: Lower boundary condition
It is convenient to consider 2 broad categories of climate-related modeling studies for which it is necessary to specify some kind of lower boundary conditions. The first of these categories is the use of general circulation or weather forecasting models, perhaps modified to carry out climate simulations. In these models, one normally has to specify something about the albedo of the surface to get the radiation balance right, the surface roughness to get the momentum exchange right, and the surface moisture availability to get the surface heat and water vapor fluxes right. Correctly specifying the surface moisture availability can be a major problem and may involve a sophisticated land surface parameterization scheme to take into account plant and soil characteristics. It is reasonable to expect that misrepresenting the water vapor flux by 10--20% on average over continental scales could lead to significant errors in simulated precipitation, temperatures, and circulation patterns. The Atmospheric Radiation Measurement (ARM) Program is focused, however, on clouds and radiation; and it has chosen Cloud and Radiation Testbeds (CART) as the principal tool with which to carry out its work. In this context, what the authors are concerned about for the lower boundary conditions is somewhat different. …
Date:
April 4, 2000
Creator:
Doran, J. C.; Barnard, J. C.; Hubbe, J. M.; Liljegren, J. C.; Shaw, W. J.; Zhong, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Definition and Means of Maintaining the Emergency Notification and Evacuation System Portion of the Plutonium Finishing Plant (PFP) Safety Envelope
The purpose of this document is to provide the definition and means of maintaining the safety envelope (SE) for the Emergency Notification and Evacuation System (ENES). Together with the appendices, it provides: (1) The system requirements for determining system operability (Section 3.0); (2) Evaluations of equipment to determine the safety boundary for the system (Section 4.0); (3) List of system drawings that are annotated to show the SE boundaries (Appendix A); (4) Identification of the SE equipment by reference to systems and drawings (Appendix B); (5) Requirements for the individual SE equipment (Section 4.0); and (6) A list of the operational and surveillance procedures necessary to operate and maintain the system equipment within the SE (Sections 5.0 and 6.0). The Private Automatic Exchange (PAX) phones and PAX switchers are outside the safety envelope defined in WHC-SD-CP-OSR-010, Section 5.4.10, ''Safety Communication and Alarm Systems,'' Section 5.4.1 0.1, ''Major Components and Operating Characteristics,'' and Section 5.4.10.1.12, ''PAX System.'' The PAX override microphone system maintains the safety envelope, and functions as a backup to the evacuation sirens during an emergency.
Date:
April 4, 2000
Creator:
WHITE, W.F.
Object Type:
Report
System:
The UNT Digital Library
Density functional theory of simple polymers in a slit pore: 3. Surface tension
In a previous study of tangent site chains near a surface, the inhomogeneous density profiles were found through Density Functional theory. In the current study, the surface tensions of these systems are found from the results of the previous study through a thermodynamic integration. The calculated surface tensions are then compared to those found directly through computer simulation. Both the surface tension and surface excess for polymeric systems are shown to qualitatively differ from those of atomic systems, although certain similarities are seen at high densities.
Date:
April 4, 2000
Creator:
HOOPER,JUSTIN B.; MCCOY,JOHN D.; CURRO,JOHN G. & VAN SWOL,FRANK B.
Object Type:
Article
System:
The UNT Digital Library
Dual alkali approaches for the capture and separation of CO{sub 2}
The Solvay process utilizes two alkalis in sequential order to convert CO{sub 2} to sodium carbonate for commercial use. The ability to transform CO{sub 2} into sodium carbonate cost-effectively would be a breakthrough in CO{sub 2} sequestration by providing benign long-term storage of CO{sub 2}. However, the Solvay process was not designed for CO{sub 2} sequestration and is not practical for use in the sequestration of CO{sub 2} from fossil fuel power plants. This paper investigates methods to modify the process in order to make it effective for the control of power plant CO{sub 2} emissions. The new modified process, called the Dual Alkali Approach, attempts to replace either or both bases, ammonia and lime, in the Solvay process with other compounds to make CO{sub 2} capture and separation efficient. Ammonia was replaced with different amines in aqueous solutions of salts and it was found that bicarbonate precipitation did occur. A method to regenerate the amine in the second step has not been implemented. However, the second step in Solvay Process has been implemented without using lime, namely, ammonia has been regenerated from an ammonium chloride solution using activated carbon. The HCl adsorbed in the activated carbon was removed by …
Date:
April 4, 2000
Creator:
Huang, H. P.; Shi, Y.; Li, W. & Chang, S. G.
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, April 4, 2000
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 4, 2000
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Field Demonstration of a Membrane Process to Recover Heavy Hydrocarbons and to Remove Water From Natural Gas Annual Report: 1999
The objective of this project is to design, construct and field demonstrate a 3-MMscfd membrane system to recover natural gas liquids (NGL) and remove water from raw natural gas. An extended field test to demonstrate system performance under real-world conditions is required to convince industry users of the efficiency and reliability of the process. The system will be designed and fabricated by Membrane Technology and Research, Inc. (MTR) and then installed and operated at British Petroleum (BP)-Amoco's Pascagoula, MS plant. The Gas Research Institute will partially support the field demonstration and BP-Amoco will help install the unit and provide onsite operators and utilities. The gas processed by the membrane system will meet pipeline specifications for dewpoint and Btu value and can be delivered without further treatment to the pipeline. Based on data from prior membrane module tests, the process is likely to be significantly less expensive than glycol dehydration followed by propane refrigeration, the principal competitive technology. At the end of this demonstration project the process will be ready for commercialization. The route to commercialization will be developed during this project and may involve collaboration with other companies already servicing the natural gas processing industry.
Date:
April 4, 2000
Creator:
Lokhandwala, K. A.; Hofmann, T.; Kaschemekat, J.; Bailey, C.; Jacobs, M.; Baker, R. et al.
Object Type:
Report
System:
The UNT Digital Library
Hanford tank waste simulants specification and their applicability for the retrieval, pretreatment, and vitrification processes
A wide variety of waste simulants were developed over the past few years to test various retrieval, pretreatment and waste immobilization technologies and unit operations. Experiments can be performed cost-effectively using non-radioactive waste simulants in open laboratories. This document reviews the composition of many previously used waste simulants for remediation of tank wastes at the Hanford reservation. In this review, the simulants used in testing for the retrieval, pretreatment, and vitrification processes are compiled, and the representative chemical and physical characteristics of each simulant are specified. The retrieval and transport simulants may be useful for testing in-plant fluidic devices and in some cases for filtration technologies. The pretreatment simulants will be useful for filtration, Sr/TRU removal, and ion exchange testing. The vitrification simulants will be useful for testing melter, melter feed preparation technologies, and for waste form evaluations.
Date:
April 4, 2000
Creator:
Golcar, G. R.; Colton, N. G.; Darab, J. G. & Smith, H. D.
Object Type:
Report
System:
The UNT Digital Library
The Harper Herald (Harper, Tex.), Vol. 70, No. 14, Ed. 1 Tuesday, April 4, 2000
Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date:
April 4, 2000
Creator:
Bishop, Karen
Object Type:
Newspaper
System:
The Portal to Texas History
Integrated Safety Management System Phase 1 and 2 Verification for the Environmental Restoration Contractor Volumes 1 and 2
DOE Policy 450.4 mandates that safety be integrated into all aspects of the management and operations of its facilities. The goal of an institutionalized Integrated Safety Management System (ISMS) is to have a single integrated system that includes Environment, Safety, and Health requirements in the work planning and execution processes to ensure the protection of the worker, public, environment, and the federal property over the life cycle of the Environmental Restoration (ER) Project. The purpose of this Environmental Restoration Contractor (ERC) ISMS Phase MI Verification was to determine whether ISMS programs and processes were institutionalized within the ER Project, whether these programs and processes were implemented, and whether the system had promoted the development of a safety conscious work culture.
Date:
April 4, 2000
Creator:
CARTER, R.P.
Object Type:
Report
System:
The UNT Digital Library
Investigation of microscopic radiation damage in waste forms using ODNMR and AEM techniques
This report summarizes work done after 2 years of a 3-year project. Using analytic electron microscopic and selective laser spectroscopic techniques, the authors first examined lanthanide orthophosphate crystals of YPO{sub 4} and LuPO{sub 4} that accumulated self-radiation damage from dopant (1 wt.%) {sup 244}Cm ions for 17 years. Although the accumulated dose of radiation (> 10{sup 18} alpha-decay events/mg) is significantly high, the samples that they examined physically remain crystalline on a macroscopic scale. Amorphization is not evident, even though isolated defects of various sizes were observed. Microscopic radiation effects in the crystals were manifested by (1) individual defect clusters of 2 to 5 nm size, which resemble disordered fission tracks, and (2) bubbles of 5 to 20 nm that are attributed to accumulation of He atoms generated during alpha decay events. These bubbles are relatively mobile and easily coalesce in electron microscopy studies due to enhanced diffusion arising from electron irradiation. They have observed that, when exposed to an electron beam, the bubbles aggregated as a function of exposure time. This observation thus provides additional evidence that the bubbles developed from the aggregation of helium atoms that were created from alpha-decay of Cm-244, and the local lattice recovered from …
Date:
April 4, 2000
Creator:
Liu, G.
Object Type:
Report
System:
The UNT Digital Library
An iterative procedure for estimating areally averaged heat flux using planetary boundary layer mixed layer height and locally measured heat flux
Measurements at the central facility of the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) are intended to verify, improve, and develop parameterizations in radiative flux models that are subsequently used in General Circulation Models (GCMs). The reliability of this approach depends upon the representativeness of the local measurements at the central facility for the site as a whole or on how these measurements can be interpreted so as to accurately represent increasingly large scales. The variation of surface energy budget terms over the SGP CART site is extremely large. Surface layer measurements of the sensible heat flux (H) often vary by a factor of 2 or more at the CART site (Coulter et al. 1996). The Planetary Boundary Layer (PBL) effectively integrates the local inputs across large scales; because the mixed layer height (h) is principally driven by H, it can, in principal, be used for estimates of surface heat flux over scales on the order of tens of kilometers. By combining measurements of h from radiosondes or radar wind profiles with a one-dimensional model of mixed layer height, they are investigating the ability of diagnosing large-scale heat fluxes. The authors have developed a procedure using the model …
Date:
April 4, 2000
Creator:
Coulter, R. L.; Gao, W. & Lesht, B. M.
Object Type:
Article
System:
The UNT Digital Library
Mercury stabilization in chemically bonded phosphate ceramics
Mercury stabilization and solidification is a significant challenge for conventional stabilization technologies. This is because of the stringent regulatory limits on leaching of its stabilized products. In a conventional cement stabilization process, Hg is converted at high pH to its hydroxide, which is not a very insoluble compound; hence the preferred route for Hg sulfidation to convert it into insoluble cinnabar (HgS). Unfortunately, efficient formation of this compound is pH-dependent. At a high pH, one obtains a more soluble Hg sulfate, in a very low pH range, insufficient immobilization occurs because of the escape of hydrogen sulfide, while efficient formation of HgS occurs only in a moderately acidic region. Thus, the pH range of 4 to 8 is where stabilization with Chemically Bonded Phosphate Ceramics (CBPC) is carried out. This paper discusses the authors experience on bench-scale stabilization of various US Department of Energy (DOE) waste streams containing Hg in the CBPC process. This process was developed to treat DOE's mixed waste streams. It is a room-temperature-setting process based on an acid-base reaction between magnesium oxide and monopotassium phosphate solution that forms a dense ceramic within hours. For Hg stabilization, addition of a small amount (< 1 wt.%) of Na{sub …
Date:
April 4, 2000
Creator:
Wagh, A. S.; Singh, D. & Jeong, S. Y.
Object Type:
Article
System:
The UNT Digital Library
Monte Carlo simulation of ferroelectric domain structure: Electrostatic and elastic strain energy contributions
A lattice-Monte Carlo approach was developed to simulate ferroelectric domain behavior. The model utilizes a Hamiltonian for the total energy that includes electrostatic terms (involving dipole-dipole interactions, local polarization gradients, and applied electric field), and elastic strain energy. The contributions of these energy components to the domain structure and to the overall applied field response of the system were examined. In general, the model exhibited domain structure characteristics consistent with those observed in a tetragonally distorted ferroelectric. Good qualitative agreement between the appearance of simulated electrical hysteresis loops and those characteristic of real ferroelectric materials was found.
Date:
April 4, 2000
Creator:
Potter, Barrett G., Jr.; Tuttle, Bruce A. & Tikare, Veena
Object Type:
Article
System:
The UNT Digital Library
The North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) cart site begins operation: Collaboration with SHEBA and FIRE
Since the 1997 Atmospheric Radiation Measurement (ARM) Science Team Meeting, the North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART) site has come into being. Much has happened even since the 1998 Science Team Meeting at which this paper was presented. To maximize its usefulness, this paper has been updated to include developments through July 1998.
Date:
April 4, 2000
Creator:
Zak, D. B.; Church, H.; Ivey, M.; Yellowhorse, L.; Zirzow, J.; Widener, K. B. et al.
Object Type:
Article
System:
The UNT Digital Library
The OIT Times Newsletter -- Spring 2000, Vol. 3, No. 2
The Spring 2000 issue of OIT [Office of Industrial Technologies] Times features articles on a new ``Best Practices'' team that is facilitating motor systems and heating equipment roadmaps; combined heat and power (CHP) industry international symposium and signing compact agreement ceremony; DOE Secretary Richardson signs compact with the petroleum industry; a major steel showcase is planned for May and OIT customers speak out with what works and what doesn't.
Date:
April 4, 2000
Creator:
Sousa, L.
Object Type:
Book
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 84, No. 135, Ed. 1 Tuesday, April 4, 2000
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 4, 2000
Creator:
Wilmoth, Adam
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
On the influence of applied fields on spinel formation
Interfaces play an important role in determining the effect of electric fields on the mechanism of the formation spinel by solid-state reaction. The reaction occurs by the movement of phase boundaries but the rate of this movement can be affected by grain boundaries in the reactants or in the reaction product. Only by understanding these relationships will it be possible to engineer their behavior. As a particular example of such a study, MgIn{sub 2}O{sub 4} can be formed by the reaction between single-crystal MgO substrate and a thin film of In{sub 2}O{sub 3} with or without an applied electric field. High-resolution backscattered electron (BSE) imaging and electron backscattered diffraction (EBSD) in a scanning electron microscope (SEM) has been used to obtain complementary chemical and crystallographic information.
Date:
April 4, 2000
Creator:
Korte, C.; Farer, J. K.; Ravishankar, N.; Michael, Joseph R.; Schmalzried, J. & Carter, C. B.
Object Type:
Article
System:
The UNT Digital Library