Structural analysis of the P reactor at the Savannah River Site (open access)

Structural analysis of the P reactor at the Savannah River Site

A seismic analysis of the P-reactor buildings that were built in the early 1950's has been performed using current criteria and analysis techniques. The seismic input is based on the RG 1.60 free field response spectra anchored at 0.2g ZPA. The SSI analysis applied deconvolution techniques to establish soil parameters based on strain dependent damping and shear modulus relationships. The analysis used 2-dimensional soil structure interaction techniques to generate floor response spectra. The spectra were adjusted to account for torsional amplifications resulting from differences between the locations of the center of mass of the floors and the center of rigidity of the connecting vertical column elements. The resulting floor response spectra were smoothed and broadened in accordance with NRC criteria. In addition to developing floor response spectra, building shears and moments were obtained and an assessment of the structural capacity of the buildings to withstand the seismic loads was made.
Date: April 11, 1991
Creator: Zaslawsky, M. & Maryak, M.
Object Type: Article
System: The UNT Digital Library
Texas Register, Volume 20, Number 28, Pages 2675-2737, April 11, 1995 (open access)

Texas Register, Volume 20, Number 28, Pages 2675-2737, April 11, 1995

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 11, 1995
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 22, Number 27, Pages 3341-3503, April 11, 1997 (open access)

Texas Register, Volume 22, Number 27, Pages 3341-3503, April 11, 1997

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 11, 1997
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: DM-437 (open access)

Texas Attorney General Opinion: DM-437

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification; Whether a district court is authorized to require a defendant to post a warning sign at his residence stating that he is a convicted sex offender as a condition of community supervision (RQ-908)
Date: April 11, 1997
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO97-037 (open access)

Texas Attorney General Opinion: LO97-037

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification; Whether a municipality that displaces private solid waste haulers after annexing an area violates the haulers' constitutional rights (ID# 39336)
Date: April 11, 1997
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Compression of fingerprint data using the wavelet vector quantization image compression algorithm. 1992 progress report (open access)

Compression of fingerprint data using the wavelet vector quantization image compression algorithm. 1992 progress report

This report describes the development of a Wavelet Vector Quantization (WVQ) image compression algorithm for fingerprint raster files. The pertinent work was performed at Los Alamos National Laboratory for the Federal Bureau of Investigation. This document describes a previously-sent package of C-language source code, referred to as LAFPC, that performs the WVQ fingerprint compression and decompression tasks. The particulars of the WVQ algorithm and the associated design procedure are detailed elsewhere; the purpose of this document is to report the results of the design algorithm for the fingerprint application and to delineate the implementation issues that are incorporated in LAFPC. Special attention is paid to the computation of the wavelet transform, the fast search algorithm used for the VQ encoding, and the entropy coding procedure used in the transmission of the source symbols.
Date: April 11, 1992
Creator: Bradley, J. N. & Brislawn, C. M.
Object Type: Report
System: The UNT Digital Library
Travel to France as Chief US Delegate at a meeting of International Standards Organization ISO/TC-85, ``Nuclear Technology``. Foreign trip report, March 17--March 26, 1994 (open access)

Travel to France as Chief US Delegate at a meeting of International Standards Organization ISO/TC-85, ``Nuclear Technology``. Foreign trip report, March 17--March 26, 1994

As overall US Advisor for ISO/TC-85, SC-5, Dr. Westfall met with (1) Work Group 1, ``Measurement Techniques for the Chemical and Physical Characterization of UF{sub 6}, UO{sub 2}, and Mixed Oxide,`` on Monday, March 21, (2) Work Group 5, ``Standardization of Measurement Methods for the Characterization of Solid and Solidified Waste Forms, and for the Corrosion of their Primary Containers,`` on Tuesday, March 22; and (3) the full Subcommittee-5 on Wednesday, March 23. The status of work by all seven work groups in SC-5 was reported. Those having to do with nuclear fuel transportation (WG-4: UF, Containers, WG-9: Cask Trunnions, and WG-10: Cask Confinement) either have approved standards or drafts at an advanced stage of development. These work group convenors were asked to maintain their membership and establish new work areas in the field of nuclear fuel packaging. Definition of scope for new work is to be done in coordination with the interested staff members of the International Atomic Energy Agency, Vienna, Austria. On Thursday, March 24, the Cogema-Marcoule Plant staff hosted the SC-5 members to technical tours of their nuclear fuel reprocessing and waste vitrification and storage facilities.
Date: April 11, 1994
Creator: Westfall, R. M.
Object Type: Report
System: The UNT Digital Library
Equipment design guidance document for flammable gas waste storage tank new equipment (open access)

Equipment design guidance document for flammable gas waste storage tank new equipment

This document is intended to be used as guidance for design engineers who are involved in design of new equipment slated for use in Flammable Gas Waste Storage Tanks. The purpose of this document is to provide design guidance for all new equipment intended for application into those Hanford storage tanks in which flammable gas controls are required to be addressed as part of the equipment design. These design criteria are to be used as guidance. The design of each specific piece of new equipment shall be required, as a minimum to be reviewed by qualified Unreviewed Safety Question evaluators as an integral part of the final design approval. Further Safety Assessment may be also needed. This guidance is intended to be used in conjunction with the Operating Specifications Documents (OSDs) established for defining work controls in the waste storage tanks. The criteria set forth should be reviewed for applicability if the equipment will be required to operate in locations containing unacceptable concentrations of flammable gas.
Date: April 11, 1996
Creator: Smet, D. B.
Object Type: Report
System: The UNT Digital Library
Structural analysis of the P reactor at the Savannah River Site (open access)

Structural analysis of the P reactor at the Savannah River Site

A seismic analysis of the P-reactor buildings that were built in the early 1950`s has been performed using current criteria and analysis techniques. The seismic input is based on the RG 1.60 free field response spectra anchored at 0.2g ZPA. The SSI analysis applied deconvolution techniques to establish soil parameters based on strain dependent damping and shear modulus relationships. The analysis used 2-dimensional soil structure interaction techniques to generate floor response spectra. The spectra were adjusted to account for torsional amplifications resulting from differences between the locations of the center of mass of the floors and the center of rigidity of the connecting vertical column elements. The resulting floor response spectra were smoothed and broadened in accordance with NRC criteria. In addition to developing floor response spectra, building shears and moments were obtained and an assessment of the structural capacity of the buildings to withstand the seismic loads was made.
Date: April 11, 1991
Creator: Zaslawsky, M. & Maryak, M.
Object Type: Article
System: The UNT Digital Library
100-D Ponds groundwater quality assessment (open access)

100-D Ponds groundwater quality assessment

The 100-D Ponds facility is regulated under the Resource Conservation and Recovery Act of 1976. The pH of groundwater in a downgradient well is statistically different than local background, triggering an assessment of groundwater contamination under 40 CFR 265.93. Results of a similar assessment, conducted in 1993, show that the elevated pH is caused by the presence of alkaline ash sediments beneath the ponds, which are not part of the RCRA unit. The 100-D Ponds should remain in indicator evaluation monitoring.
Date: April 11, 1996
Creator: Hartman, M. J.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: DM-288 (open access)

Texas Attorney General Opinion: DM-288

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification: Authority of the Public Utility Commission of Texas to apply for, receive, and expend federal funds, and related questions (RQ-664)
Date: April 11, 1994
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Investigation of the coherent synchrotron radiation spectrum as a probe of charge dynamics. Progress performance report (open access)

Investigation of the coherent synchrotron radiation spectrum as a probe of charge dynamics. Progress performance report

The authors search for coherent Bremsstrahlung radiation was unsuccessful but during those measurement attempts, they made the first observation of coherent Cherenkov radiation in a solid. (Previous measurements had all been made in gases.) Because of the large index of refraction in solids, Cherenkov radiation is emitted at a large angle with respect to the electron beam while transition radiation is not. The result is that both components of the coherent spectrum can be examined at the same time. While the authors have already shown that coherent transition radiation provides spectral information on the longitudinal form factor of the bunch, the Cherenkov radiation produces spectral information related to the transverse form factor. Complete testing of the prototype grid interferometer has led to a final design for the large aperture low frequency interferometer. Different high sensitivity detectors have been examined. For the highest sensitivity work the cooled Si bolometer detector provides the best match to the interferometer optics. They also propose to test a wideband room temperature integrated receiver in an attempt to examine single bunches with the interferometric technique. The authors have also found that a time resolved approach to the analysis of single bunches can be carried out if …
Date: April 11, 1994
Creator: Sievers, A. J. & Tigner, M.
Object Type: Report
System: The UNT Digital Library
EIA model documentation: World oil refining logistics demand model,``WORLD`` reference manual. Version 1.1 (open access)

EIA model documentation: World oil refining logistics demand model,``WORLD`` reference manual. Version 1.1

This manual is intended primarily for use as a reference by analysts applying the WORLD model to regional studies. It also provides overview information on WORLD features of potential interest to managers and analysts. Broadly, the manual covers WORLD model features in progressively increasing detail. Section 2 provides an overview of the WORLD model, how it has evolved, what its design goals are, what it produces, and where it can be taken with further enhancements. Section 3 reviews model management covering data sources, managing over-optimization, calibration and seasonality, check-points for case construction and common errors. Section 4 describes in detail the WORLD system, including: data and program systems in overview; details of mainframe and PC program control and files;model generation, size management, debugging and error analysis; use with different optimizers; and reporting and results analysis. Section 5 provides a detailed description of every WORLD model data table, covering model controls, case and technology data. Section 6 goes into the details of WORLD matrix structure. It provides an overview, describes how regional definitions are controlled and defines the naming conventions for-all model rows, columns, right-hand sides, and bounds. It also includes a discussion of the formulation of product blending and specifications …
Date: April 11, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
An adaptive optics package designed for astronomical use with a laser guide star tuned to an absorption line of atomic sodium (open access)

An adaptive optics package designed for astronomical use with a laser guide star tuned to an absorption line of atomic sodium

We present the design and implementation of a very compact adaptive optic system that senses the return light from a sodium guide-star and controls a deformable mirror and a pointing mirror to compensate atmospheric perturbations in the wavefront. The deformable mirror has 19 electrostrictive actuators and triangular subapertures. The wavefront sensor is a Hartmann sensor with lenslets on triangular centers. The high-bandwidth steering mirror assembly incorporates an analog controller that samples the tilt with an avalanche photodiode quad cell. An {line_integral}/25 imaging leg focuses the light into a science camera that can either obtain long-exposure images or speckle data. In laboratory tests overall Strehl ratios were improved by a factor of 3 when a mylar sheet was used as an aberrator. The crossover frequency at unity gain is 30 Hz.
Date: April 11, 1994
Creator: Salmon, J. T.; Avicola, K. & Brase, J. M.
Object Type: Article
System: The UNT Digital Library
105-DR Large Sodium Fire Facility closure activities evaluation report (open access)

105-DR Large Sodium Fire Facility closure activities evaluation report

This report evaluates the closure activities at the 105-DR Large Sodium Fire Facility. The evaluation compares these activities to the regulatory requirements and closure plan requirements. The report concludes that the areas identified in the closure plan can be clean closed. This report summarizes and evaluates the closure activities performed in support of partial closure of the 105-DR Large Sodium Fire Facility (LSFF). This evaluation will be used in assessing the condition of the 105-DR LSFF for the purpose of meeting the partial clean closure conditions described in the 105-DR Large Sodium Fire Facility Closure Plan (DOE-RL 1995). Based on the evaluation of the decontamination activities, sampling activities, and sample data, it is has been determined that the partial clean closure conditions for the 105-DR LSFF have been met.
Date: April 11, 1996
Creator: Adler, J. G.
Object Type: Report
System: The UNT Digital Library
Evaluated cross-section libraries and kerma factors for neutrons up to 100 MeV on {sup 12}C (open access)

Evaluated cross-section libraries and kerma factors for neutrons up to 100 MeV on {sup 12}C

A program is being carried out at Lawrence Livermore National Laboratory to develop high-energy evaluated nuclear data libraries for use in Monte Carlo simulations of cancer radiation therapy. In this report we describe evaluated cross sections and kerma factors for neutrons with incident energies up to 100 MeV on {sup 12}C. The aim of this effort is to incorporate advanced nuclear physics modeling methods, with new experimental measurements, to generate cross section libraries needed for an accurate simulation of dose deposition in fast neutron therapy. The evaluated libraries are based mainly on nuclear model calculations, benchmarked to experimental measurements where they exist. We use the GNASH code system, which includes Hauser-Feshbach, preequilibrium, and direct reaction mechanisms. The libraries tabulate elastic and nonelastic cross sections, angle-energy correlated production spectra for light ejectiles with A{le}and kinetic energies given to light ejectiles and heavy recoil fragments. The major steps involved in this effort are: (1) development and validation of nuclear models for incident energies up to 100 MeV; (2) collation of experimental measurements, including new results from Louvain-la-Nueve and Los Alamos; (3) extension of the Livermore ENDL formats for representing high-energy data; (4) calculation and evaluation of nuclear data; and (5) validation of …
Date: April 11, 1995
Creator: Chadwick, M.B.; Blann, M.; Cox, L.; Young, P.G. & Meigooni, A.
Object Type: Report
System: The UNT Digital Library
Shielding analysis for the 300 area light water reactor spent nuclear fuel within a modified multi-canister overpack canister in a modified multi-canister overpack cask (open access)

Shielding analysis for the 300 area light water reactor spent nuclear fuel within a modified multi-canister overpack canister in a modified multi-canister overpack cask

Spent light water reactor fuel is to be moved out of the 324 Building. It is anticipated that intact fuel assemblies will be loaded in a modified Multi-Canister Overpack Canister, which in turn will be placed in an Overpack Transportation Cask. An estimate of gamma ray dose rates from a transportation cask is desired.
Date: April 11, 1997
Creator: Gedeon, S.R.
Object Type: Report
System: The UNT Digital Library
System design description for master equipment list, phase I (open access)

System design description for master equipment list, phase I

This System Design Description (SDD) is for the Master Equipment List Phase I (MEL). It has been prepared following the WI-IC-CM-3-10, ''Software Practices,'' (Ref. 6). This SDD describes the internal design for implementation of the MEL Phase I.
Date: April 11, 1997
Creator: Sandoval, J.D.
Object Type: Report
System: The UNT Digital Library
Ta and Nb reinforced MoSi sub 2 (open access)

Ta and Nb reinforced MoSi sub 2

MoSi{sub 2} matrix composites have been recognized lately as potential materials for structural applications at elevated temperatures. Specifically, MoSi{sub 2} composites may exhibit useful properties at temperatures to 1400{degrees}C. Previous work improved the yield strength of MoSi{sub 2} at 1400{degrees}C by a factor of five through SiC whisker reinforcement. Current research is directed towards increasing the fracture toughness of MoSi{sub 2} through the addition of ductile phase reinforcements such as niobium and tantalum. The reaction between Nb and MoSi{sub 2} to form (Mo,Nb){sub 5}Si{sub 3} proceeds with faster kinetics at hot isostatic press temperatures as low as 1100{degrees}C when compared to the reaction between Ta and MoSi{sub 2} to form (Mo,Ta){sub 5}Si{sub 3}. This reaction product exhibits very poor properties, as evidenced by crack propagation through this layer during fracture. The feasibility of hot working these composites to produce tailored microstructures is examined. 11 refs., 10 figs.
Date: April 11, 1990
Creator: Carter, D. H. & Martin, P. L.
Object Type: Article
System: The UNT Digital Library
The U.S.-North Korea Nuclear Accord of October 1994: Background, Status, and Requirements of U.S. Nonproliferation Law (open access)

The U.S.-North Korea Nuclear Accord of October 1994: Background, Status, and Requirements of U.S. Nonproliferation Law

None
Date: April 11, 1997
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Conservation Provisions in the 1996 Farm Bill: A Summary (open access)

Conservation Provisions in the 1996 Farm Bill: A Summary

This report briefly reviews the setting in which the farm bill was passed, then describes the provisions in Title III -- Conservation.
Date: April 11, 1996
Creator: Zinn, Jeffrey
Object Type: Report
System: The UNT Digital Library
Central Calorimeter configuration: A study report to the SDC Technical Board (open access)

Central Calorimeter configuration: A study report to the SDC Technical Board

The single most important determinant of the overall Central Calorimeter (CC) shape is the criterion for depth of hadron shower containment. This criterion and its rapidity dependence is discussed in a companion document to this report titled ``Depth Requirements in SSC Calorimeters`` by a D. Green et al., SDC-91-00016. The conclusion reached there is that the calorimeter should be 10 {lambda} thick at {eta} = 0 and increase smoothly to 12 {lambda} at {eta} = 3. We adopt this criterion in this report and discuss the mechanical properties and design details of a CC that meets this condition.
Date: April 11, 1991
Creator: Kirk, T. B. W. & Wicklund, A. B.
Object Type: Report
System: The UNT Digital Library
Gradient Errors and Correction System Summary (open access)

Gradient Errors and Correction System Summary

None
Date: April 11, 1990
Creator: H., Hahn
Object Type: Report
System: The UNT Digital Library
Sextant Test Ramps (open access)

Sextant Test Ramps

None
Date: April 11, 1996
Creator: Deng, D. P.; Kewisch, J.; Martin, B.; Rose, J. & Peggs, S.
Object Type: Report
System: The UNT Digital Library