80 Matching Results

Results open in a new window/tab.

Religious Persecution Abroad: Congressional Concerns and Actions (open access)

Religious Persecution Abroad: Congressional Concerns and Actions

None
Date: June 25, 1998
Creator: unknown
System: The UNT Digital Library
The Religious Freedom Restoration Act: Its Rise, Fall, and Current Status (open access)

The Religious Freedom Restoration Act: Its Rise, Fall, and Current Status

None
Date: June 25, 1998
Creator: unknown
System: The UNT Digital Library
The Proposed Witness Protection and Interstate Relocation Act of 1997: H.R. 2181 (open access)

The Proposed Witness Protection and Interstate Relocation Act of 1997: H.R. 2181

None
Date: March 25, 1998
Creator: unknown
System: The UNT Digital Library
RHIC Warm-to-Cold Transition: Heat Load Analysis of the Placement on the Beam Tube of the Lug for the Braided Heat Sink Strap (open access)
Functional requirements for portable exhauster system to be used during saltwell pumping (open access)

Functional requirements for portable exhauster system to be used during saltwell pumping

This document defines functional requirements for portable exhausters used to ventilate primary tanks during saltwell pumping, and provide back-up to primary and annulus ventilation systems at C-106 and AY-102.
Date: July 25, 1998
Creator: Nelson, O. D.
System: The UNT Digital Library
Enhancing environmental restoration predictive modeling in undersampled environments (open access)

Enhancing environmental restoration predictive modeling in undersampled environments

New computational physics methods for estimating constitutive property parameterizations in ground water aquifers were developed and demonstrated in this project. The dynamical and statistical axioms of physics, embodied in partial differential equations (PDES) of kinetic theory, are employed to constrain interpolations of hydraulic head (pressure) and transmissivity (permeability) between sparsely measured datum points. These methods can apparently be applied in numerous approaches to parameter estimation. To demonstrate the basic concepts and techniques developed in this work, examples are considered for steady-state, two-dimensional, heterogeneous, ground water flow models, given (i) discrete borehole observations of hydraulic head and transmissivity and (ii) governing kinetic equations for Darcy flow behavior. Estimations of spatially dependent parameters from sparsely measured data are treated as mathematically ill- posed problems because infinitely many parameter distributions (realizations) that are consistent with the data generally exist. Potential difficulties associated with ill-posedness in mean flow realizations are mitigated by requiring that acceptable realizations respect the observed data, are solutions of forward and inverse PDEs for physical continuity, respect information sampling principles, and are distributed by spatial interpolations that themselves are optimal solutions of the governing PDEs between measured datum points. To accomplish these requisites, adaptive numerical grid Galerkin techniques were applied …
Date: March 25, 1998
Creator: Gelinas, R.J., LLNL
System: The UNT Digital Library
Project W-320 Tank 106-C waste retrieval study analysis session report (open access)

Project W-320 Tank 106-C waste retrieval study analysis session report

This supporting document has been prepared to make the Kaiser Engineers Hanford Company Project W-320 Tank 106-C Waste Retrieval Study Analysis Session Report readily retrievable. This facilitated session was requested by Westinghouse Hanford Company (WHC) to review the characterization data and select the best alternatives for a double-shell receiver tank and for a sluicing medium for Tank 106-C waste retrieval. The team was composed of WHC and Kaiser Engineers Hanford Company (KEH) personnel knowledgeable about tank farm operations, tank 106-C requirements, tank waste characterization and analysis, and chemical processing. This team was assembled to perform a structured decision analysis evaluation and recommend the best alternative-destination double-shell tank between tanks 101-AY and 102-AY, and the best alternative sluicing medium among dilute complexant (DC), dilute noncomplexant (DNC), and water. The session was facilitated by Richard Harrington and Steve Bork of KEH and was conducted at the Bookwalter Winery in Richland from 7:30 a.m. to 4:00 p.m. from July 27 through July 29, 1993. Attachment 1 (Scope Statement Sheet) identifies the team members, scope, objectives, and deliverables for the session.
Date: March 25, 1998
Creator: Bailey, J. W.
System: The UNT Digital Library
Macroencapsulation of mixed waste debris at the Hanford Nuclear Reservation -- Final project report by AST Environmental Services, LLC (open access)

Macroencapsulation of mixed waste debris at the Hanford Nuclear Reservation -- Final project report by AST Environmental Services, LLC

This report summarizes the results of a full-scale demonstration of a high density polyethylene (HDPE) package, manufactured by Arrow Construction, Inc. of Montgomery, Alabama. The HDPE package, called ARROW-PAK, was designed and patented by Arrow as both a method to macroencapsulation of radioactively contaminated lead and as an improved form of waste package for treatment and interim and final storage and/or disposal of drums of mixed waste. Mixed waste is waste that is radioactive, and meets the criteria established by the United States Environmental Protection Agency (US EPA) for a hazardous material. Results from previous testing conducted for the Department of Energy (DOE) at the Idaho National Engineering Laboratory in 1994 found that the ARROW-PAK fabrication process produces an HDPE package that passes all helium leak tests and drop tests, and is fabricated with materials impervious to the types of environmental factors encountered during the lifetime of the ARROW-PAK, estimated to be from 100 to 300 years. Arrow Construction, Inc. has successfully completed full-scale demonstration of its ARROW-PAK mixed waste macroencapsulation treatment unit at the DOE Hanford Site. This testing was conducted in accordance with Radiological Work Permit No. T-860, applicable project plans and procedures, and in close consultation with …
Date: February 25, 1998
Creator: Baker, T.L.
System: The UNT Digital Library
Project W-320, 241-C-106 sluicing: Piping calculations. Volume 2 (open access)

Project W-320, 241-C-106 sluicing: Piping calculations. Volume 2

This supporting document has been prepared to make the FDNW calculations for Project W-320 readily retrievable. The objectives of this calculation are (1) To perform static and Safety Class 2 dynamic stress analysis of the Slurry and Supernate Process (inner) piping connecting Tanks 241-C-106 and 241-AY-102 in order to be in compliance with the Code requirements; (2) To assure the thermal expansion of the process pipe not be strained by the outer encasement pipe; and (3) To furnish process pipe support to the Civil Engineering group.
Date: July 25, 1998
Creator: Bailey, J. W.
System: The UNT Digital Library
Tank 241-C-106 waste retrieval sluicing system process control plan (open access)

Tank 241-C-106 waste retrieval sluicing system process control plan

Project W-320 has installed the Waste Retrieval Sluicing System at the 200 East Area on the Hanford Site to retrieve the sludge from single-shell tank 241-C-106 and transfer it into double-shell tank 241-AY-102. Operation of the WRSS process will resolve the high-heat safety issue for tank 241-C-106 and demonstrate a technology for the retrieval of single-shell tank wastes. This process control plan coordinates the technical operating requirements (primarily mass transfer, temperature, and flammable gas) for the sluicing operation and provides overall technical guidance for the retrieval activity.
Date: July 25, 1998
Creator: Carothers, K.G.
System: The UNT Digital Library
Passive Nmis Measurements to Estimate Shape of Plutonium Assemblies (Slide Presentation) (open access)

Passive Nmis Measurements to Estimate Shape of Plutonium Assemblies (Slide Presentation)

The purpose of this work is to estimate shape of plutonium assemblies using new signatures acquired by passive NMIS measurements (no external source). Applications include identification of containerized regular shapes of plutonium, identification by shape without template, verification of shape for template initialization, and potential utility for estimating shape of holdup in plutonium processing facilities. To illustrate the technique and test its feasibility, laboratory measurements have been performed with californium spontaneous fission sources as a surrogate for plutonium. Advantages of the technique include the following: passive (requires no external source for plutonium measurements), stationary (no scanning of the assembly is required), penetrative (shape is estimated from neutron emissions), obscurable (spatial resolution can be deliberately degraded by changing detector size and/or timing resolution), inexpensive (majority of NMIS components are commercial products), portable (detection system is transported to the item, not vice versa). It is concluded that passive NMIS measurements can infer the mass of plutonium assemblies: NMIS correlations scale directly with spontaneous fission rate (Pu-240); NMIS correlations scale with fissile mass (Pu-239) and multiplication. New third-order correlations can estimate the shape of fission sources (Pu-240 & Pu-239) from passive measurements. Surrogate measurements of californium spontaneous fission sources have demonstrated the feasibility …
Date: November 25, 1998
Creator: March-Leuba, J. A.; Mattingly, J. K.; Mihalczo, J. T.; Perez, R. B. & Valentine, T. E.
System: The UNT Digital Library
Compatibility of Polyvinyl Alcohol with the 241-F/H Tank Farm Liquid Waste (open access)

Compatibility of Polyvinyl Alcohol with the 241-F/H Tank Farm Liquid Waste

This report describes results from laboratory-scale oxidative mineralization of polyvinyl alcohol (PVA), and the evaluation of the F/H Tank Farms as a storage/disposal option for PVA waste solution generated in the Canyons and B-line decontamination operations.
Date: November 25, 1998
Creator: Oji, L.N.
System: The UNT Digital Library
Low-activity waste feed delivery -- Minimum duration between successive batches (open access)

Low-activity waste feed delivery -- Minimum duration between successive batches

The purpose of this study is to develop a defensible basis for establishing what ``minimum duration`` will provide acceptable risk mitigation for low-activity waste feed delivery to the privatization vendors. The study establishes a probabilistic-based duration for staging of low-activity waste feed batches. A comparison is made of the durations with current feed delivery plans and potential privatization vendor facility throughput rates.
Date: August 25, 1998
Creator: Peters, B. B.
System: The UNT Digital Library
Rapid tooling by electron-beam vapor deposition (open access)

Rapid tooling by electron-beam vapor deposition

Electron-beam physical vapor deposition (EBPVD) of tooling metal, onto a shaped substrate to produce a replica of the substrate surface, offers the potential for significant cost savings over present methods of injection mold manufacturing. These savings are realized by the high deposition rate and the corresponding short manufacturing times provided by the EBPVD process. However, on route to realizing these gains, there are process technical issues which need to be resolved. Mold surfaces typically contain relatively high aspect ratio details that must be replicated to dimensional tolerances within +/- 2 mils. The deposited mold material must also provide high surface hardness and high fracture toughness. Good quality grain structure can be obtained in deposited Al 10-wt% Cu mold material when the substrate and corresponding deposit are at high process temperature. However, the resulting mold is subject to distortion during cooldown due to differential temperatures and shrinkage rates. Thermally controlled cooldown and the use of crushable substrate materials reduce these distortions, but not to the required levels of tolerance. Deposition of the Al-Cu at lower temperature produces columnar, poorly joined grains which result in a brittle and weakened mold material. When Al 10-wt% Cu metal vapor is deposited across high aspect …
Date: February 25, 1998
Creator: Meier, T. C., LLNL
System: The UNT Digital Library
W-320, waste retrieval sluicing system: Operational start up plan (open access)

W-320, waste retrieval sluicing system: Operational start up plan

This plan details the sequence of activities and identifies the organizational roles and responsibilities to ensure a safe startup of the Waste Retrieval Sluicing System (WRSS). This start up plan identifies the activities which must be performed during the initial startup as well as the document which directs each step. This startup plan does not authorize or direct any specific field activities or authorize a change of configuration. As such, this plan does not require a USQ screening.
Date: July 25, 1998
Creator: Bevins, R.R.
System: The UNT Digital Library
Electron cooling for RHIC (open access)

Electron cooling for RHIC

Electron cooling of completely stripped gold ions {sup 197}Au{sup 79+} in RHIC is considered for the store energy, {gamma} = 108. The optimal parameters of the required electron storage ring are discussed and proposed. The cooling time is calculated as 15 minutes, which would allow not only to avoid the beam loss due to the intra-beam scattering, but also reduce the transverse emittance and increase the luminosity several times.
Date: September 25, 1998
Creator: Burov, A., FNAL,
System: The UNT Digital Library
Light duty utility arm walkdown report (open access)

Light duty utility arm walkdown report

This document is a report of the Light Duty Utility Arm (LDUA) drawing walkdown. The purpose of this walkdown was to validate the essential configuration of the LDUA in preparation of deploying the equipment in a Hanford waste tank. The LDUA system has, over the course of its development, caused the generation of a considerable number of design drawings. The number of drawings is estimated to be well over 1,000. A large number consist of vendor type drawings, furnished by both Pacific Northwest National Laboratory (PNNL) and SPAR Aerospace Limited (SPAR). A smaller number, approximately 200, are H-6 type drawing sheets in the Project Hanford Management Contract (PHMC) document control system. A preliminary inspection of the drawings showed that the physical configuration of the LDUA did not match the documented configuration. As a result of these findings, a scoping walkdown of 20 critical drawing sheets was performed to determine if a problem existed in configuration management of the LDUA system. The results of this activity showed that 18 of the 20 drawing sheets were found to contain errors or omissions of varying concern. Given this, Characterization Engineering determined that a walkdown of the drawings necessary and sufficient to enable safe …
Date: September 25, 1998
Creator: Smalley, J. L.
System: The UNT Digital Library
Project W-320, waste retrieval sluicing system: BIO/SER implementation matrices (open access)

Project W-320, waste retrieval sluicing system: BIO/SER implementation matrices

This document provides verification that the safety related commitments specified in HNF-SD-WM-810-001, Addendum 1 for the Waste Retrieval Sluicing System, Project W-320 and Project W-320 Safety Evaluation Report (SER), have been implemented in the project hardware, procedures and administrative controls. Four appendices include matrices which show where the 810 commitments are implemented for limiting conditions of operation and surveillance requirements controls, administrative controls, defense-in-depth controls and controls discussed in 810 Addendum 1. A fifth appendix includes the implementation of Project W-320 SER issues and provisions.
Date: July 25, 1998
Creator: Bailey, J. W.
System: The UNT Digital Library
The DOE Subsurface Microbial Culture Collection at Florida State University. Final Technical Report, January 16, 1996--February 15, 1997 (open access)

The DOE Subsurface Microbial Culture Collection at Florida State University. Final Technical Report, January 16, 1996--February 15, 1997

This report describes the research that supports the Subsurface Science Program by maintaining a culture collection of microorganisms isolated from deep terrestrial subsurface environments (the Subsurface Microbial Culture Collection, or SMCC). The general distribution of cultures and data was identified as an important function of the SMCC. The accomplishments related to this function of the culture collection are described.
Date: May 25, 1998
Creator: Balkwill, D. L.
System: The UNT Digital Library
Verification and validation interim report for portable 1,000 CFM exhauster skids POR-007/Skid E and POR-008/Skid F (open access)

Verification and validation interim report for portable 1,000 CFM exhauster skids POR-007/Skid E and POR-008/Skid F

This Verification and Validation (V/V) interim report summarizes to date the results of the V/V tasks performed in each of the following life cycle phases: concept, requirements, design, implementation, test, installation and checkout, and operation and maintenance. At the end of the installation and checkout phase, the V/V final report will be issued. This interim report contains or references the following for each phase: Description of V/V tasks performed; Summary of task results; Summary of anomalies and resolution; Assessment of system quality; Recommendations.
Date: July 25, 1998
Creator: Nelson, O. D.
System: The UNT Digital Library
340 waste handling complex: Deactivation project management plan (open access)

340 waste handling complex: Deactivation project management plan

This document provides an overview of the strategy for deactivating the 340 Waste Handling Complex within Hanford`s 300 Area. The plan covers the period from the pending September 30, 1998 cessation of voluntary radioactive liquid waste (RLW) transfers to the 340 Complex, until such time that those portions of the 340 Complex that remain active beyond September 30, 1998, specifically, the Retention Process Sewer (RPS), can also be shut down and deactivated. Specific activities are detailed and divided into two phases. Phase 1 ends in 2001 after the core RLW systems have been deactivated. Phase 2 covers the subsequent interim surveillance of deactivated and stand-by components during the period of continued RPS operation, through the final transfer of the entire 340 Complex to the Environmental Restoration Contractor. One of several possible scenarios was postulated and developed as a budget and schedule planning case.
Date: June 25, 1998
Creator: Stordeur, R.T.
System: The UNT Digital Library
Modeling Analysis of Biosparging at the Sanitary Landfill (open access)

Modeling Analysis of Biosparging at the Sanitary Landfill

This report presents the results of a groundwater modeling study that evaluates the performance of the biosparging system at the Sanitary Landfill.
Date: November 25, 1998
Creator: Jackson, D.
System: The UNT Digital Library
Tank characterization report for single-shell tank 241-T-110 (open access)

Tank characterization report for single-shell tank 241-T-110

This document summarizes the information on the historical uses, present status, and the sampling and analysis results of waste stored in Tank 241-T-110. This report supports the requirements of the Tri-Party Agreement Milestone M-44-15B. Tank 241-T-110 is listed on the Hydrogen Watch List.
Date: February 25, 1998
Creator: McCain, D.J.
System: The UNT Digital Library
Final Report for the H2Fuel Bus (open access)

Final Report for the H2Fuel Bus

The H2Fuel Bus is the world's first hydrogen-fueled electric hybrid transit bus. It was a project developed through a public/private partnership involving several leading technological and industrial organizations, with primary funding by the Department of Energy (DOE). The primary goals of the project are to gain valuable information on the technical readiness and economic viability of hydrogen fueled buses and to enhance the public awareness and acceptance of emerging hydrogen technologies.
Date: November 25, 1998
Creator: Jacobs, W.D.
System: The UNT Digital Library