Evaluation of near field rock treatment during constructions (LADSfeature #22) (open access)

Evaluation of near field rock treatment during constructions (LADSfeature #22)

The purpose of this report is to evaluate the effect of near-field rock treatment by injection of reactive material (calcite) above the drift for the purpose of decreasing postclosure drift seepage. The method used for the calculation was a coupled reaction-transport numerical model for gas-water-rock interaction. This includes the mass conservation of heat, liquid and gas for thermohydrological calculations, of aqueous and gaseous species for advective and diffusive transport, and the kinetics of mineral-water reactions.
Date: November 24, 1998
Creator: Sonnenthal, Eric & Spycher, Nicolas
Object Type: Report
System: The UNT Digital Library
Measurement of radiation dose using radiochromic film (open access)

Measurement of radiation dose using radiochromic film

We have irradiated samples of radiochromic film to doses between 0.005 and lMrad in a Co[sup 60] facility at ANL. The doses computed using the manufacturer's calibration curves for the absorption at 600 and 510 nm have been compared with the dose obtained from ion chamber measurements. Excellent agreement is obtained and high precision can be maintained by baseline measurement of the films prior to irradiation, appropriate choice of film and wavelength used.
Date: November 24, 1992
Creator: Jankowski, D. J. & Proudfoot, J.
Object Type: Report
System: The UNT Digital Library
Interactive fundamental physics. [THE REAL STUFF: The New Expanded Media Physics Course for secondary school students] (open access)

Interactive fundamental physics. [THE REAL STUFF: The New Expanded Media Physics Course for secondary school students]

THE REAL STUFF is an Expanded Media Physics Course aimed at students still in the formative early years of secondary school. Its consists of a working script for an interactive multimedia study unit in basic concepts of physics. The unit begins with a prologue on the Big Bang that sets the stage, and concludes with a lesson on Newton's first law of motion. The format is interactive, placing the individual student in control of a layered hypermedia'' structure that enables him or her to find a level of detail and difficulty that is comfortable and meaningful. The intent is to make physics relevant, intellectually accessible and fun. On-screen presenters and demonstrators will be females and males of various ages, ethnicities and backgrounds, and will include celebrities and physicists of note. A lean, layered design encourages repeated, cumulative study and makes the material useful for self-directed Teaming even by college students. THE REAL STUFF introduces a new science teaching paradigm, a way to teach science that will engage even students who have declined'' to be interested in science in the past. Increased participation in science by women, African-Americans and Spanish-speaking students is a particular goal.
Date: November 24, 1992
Creator: Rubin, E.L.
Object Type: Report
System: The UNT Digital Library
High Temperature Alkali Corrosion of Ceramics in Coal Gas (open access)

High Temperature Alkali Corrosion of Ceramics in Coal Gas

Calcia-stabilized cubic zirconia was mixed with soda, then fired at 840-1100 C. SiC was also reacted with alkali-containing atmosphere at 1000 C.
Date: November 24, 1992
Creator: Pickrell, G. R.; Sun, T. & Brown, J. J.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 17, Number 88, Pages 8199-8247, November 24, 1992 (open access)

Texas Register, Volume 17, Number 88, Pages 8199-8247, November 24, 1992

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: November 24, 1992
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 20, Number 88, Part III, Pages 10015-10162, November 24, 1995 (open access)

Texas Register, Volume 20, Number 88, Part III, Pages 10015-10162, November 24, 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: November 24, 1995
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 20, Number 88, Part II, Pages 9903-10014, November 24, 1995 (open access)

Texas Register, Volume 20, Number 88, Part II, Pages 9903-10014, November 24, 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: November 24, 1995
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 20, Number 88, Part I, Pages 9779-9901, November 24, 1995 (open access)

Texas Register, Volume 20, Number 88, Part I, Pages 9779-9901, November 24, 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: November 24, 1995
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Monthly energy review, November 1993 (open access)

Monthly energy review, November 1993

The Monthly Energy Review gives information on production, distribution, and consumption for various energy sources, e.g. petroleum, natural gas, oil, coal, electricity, and nuclear energy. Some data is also included on international energy sources and supplies, the import of petroleum products into the US and pricing and reserves data (as applicable) for the various sources of energy listed above.
Date: November 24, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
High temperature alkali corrosion of ceramics in coal gas. Quarterly progress report No. 5, September 1, 1992--December 1, 1992 (open access)

High temperature alkali corrosion of ceramics in coal gas. Quarterly progress report No. 5, September 1, 1992--December 1, 1992

Calcia-stabilized cubic zirconia was mixed with soda, then fired at 840-1100 C. SiC was also reacted with alkali-containing atmosphere at 1000 C.
Date: November 24, 1992
Creator: Pickrell, G. R.; Sun, T. & Brown, J. J
Object Type: Report
System: The UNT Digital Library
Thin-film characterization and flaw detection. Progress report No. 7, February 1, 1993--January 31, 1994 (open access)

Thin-film characterization and flaw detection. Progress report No. 7, February 1, 1993--January 31, 1994

Objective is to determine the elastic constants of thin films deposited on substrates, measure residual stresses, and detect and characterize defects in thin film substrate configurations. A line-focus acoustic microscope is being used to measure speed of surface acoustic waves (SAW) in thin film/substrate system. V(z) curves (record of transducer voltage output (V) with variation of distance z between acoustic lens and specimen) were calculated in terms of characteristic functions of acoustic lens and reflectance function of fluid-loaded specimen, and were compared with data for isotropic, anisotropic, and layered anisotropic materials. For thin film/substrate of known elasticity, theoretical surface acoustic wave velocities agree with measured V(z) curves for full range of wave propagation directions. Results have been obtained for homogeneous nitride films and transition-metal nitride superlattice films.
Date: November 24, 1993
Creator: Achenbach, J. D.
Object Type: Report
System: The UNT Digital Library
WRAP low level waste restricted waste management (LLW RWM) glovebox acceptance test report (open access)

WRAP low level waste restricted waste management (LLW RWM) glovebox acceptance test report

On April 22, 1997, the Low Level Waste Restricted Waste Management (LLW RWM) glovebox was tested using acceptance test procedure 13027A-87. Mr. Robert L. Warmenhoven served as test director, Mr. Kendrick Leist acted as test operator and test witness, and Michael Lane provided miscellaneous software support. The primary focus of the glovebox acceptance test was to examine glovebox control system interlocks, operator Interface Unit (OIU) menus, alarms, and messages. Basic drum port and lift table control sequences were demonstrated. OIU menus, messages, and alarm sequences were examined, with few exceptions noted. Barcode testing was bypassed, due to the lack of installed equipment as well as the switch from basic reliance on fixed bar code readers to the enhanced use of portable bar code readers. Bar code testing was completed during performance of the LLW RWM OTP. Mechanical and control deficiencies were documented as Test Exceptions during performance of this Acceptance Test. These items are attached as Appendix A to this report.
Date: November 24, 1997
Creator: Leist, K. J.
Object Type: Report
System: The UNT Digital Library
Generalized b-spline subdivision-surface wavelets and lossless compression (open access)

Generalized b-spline subdivision-surface wavelets and lossless compression

We present a new construction of wavelets on arbitrary two-manifold topology for geometry compression. The constructed wavelets generalize symmetric tensor product wavelets with associated B-spline scaling functions to irregular polygonal base mesh domains. The wavelets and scaling functions are tensor products almost everywhere, except in the neighborhoods of some extraordinary points (points of valence unequal four) in the base mesh that defines the topology. The compression of arbitrary polygonal meshes representing isosurfaces of scalar-valued trivariate functions is a primary application. The main contribution of this paper is the generalization of lifted symmetric tensor product B-spline wavelets to two-manifold geometries. Surfaces composed of B-spline patches can easily be converted to this scheme. We present a lossless compression method for geometries with or without associated functions like color, texture, or normals. The new wavelet transform is highly efficient and can represent surfaces at any level of resolution with high degrees of continuity, except at a finite number of extraordinary points in the base mesh. In the neighborhoods of these points detail can be added to the surface to approximate any degree of continuity.
Date: November 24, 1999
Creator: Bertram, M; Duchaineau, M A; Hamann, B & Joy, K I
Object Type: Article
System: The UNT Digital Library
Radionuclide detection limits required to estimate health effects in CERCLA risk assessments (open access)

Radionuclide detection limits required to estimate health effects in CERCLA risk assessments

Lower limits of detection (LLDS) have been calculated for radionuclides of environmental and ecological interest The detection limits are risk-based and were derived using a methodology similar to that described by the Environmental Protection Agency for determining Preliminary Remediation Goals (PRGS) [EPA 1991]. PRGS, and the LLDs calculated in this report are calculated assuming a risk level of 10{sup {minus}6}, the risk deemed acceptable by the EPA. LLDs have been calculated for radionuclides in water and soil. Water concentrations are based on risks resulting from the consumption of drinking water while soil concentrations are based on risks from incidental soil ingestion and external radiation exposure from ground surface contamination.
Date: November 24, 1992
Creator: Hamby, D. M.
Object Type: Report
System: The UNT Digital Library
Interactive fundamental physics. [Final report], April 15, 1992--November 14, 1992 (open access)

Interactive fundamental physics. [Final report], April 15, 1992--November 14, 1992

THE REAL STUFF is an Expanded Media Physics Course aimed at students still in the formative early years of secondary school. Its consists of a working script for an interactive multimedia study unit in basic concepts of physics. The unit begins with a prologue on the Big Bang that sets the stage, and concludes with a lesson on Newton`s first law of motion. The format is interactive, placing the individual student in control of a layered ``hypermedia`` structure that enables him or her to find a level of detail and difficulty that is comfortable and meaningful. The intent is to make physics relevant, intellectually accessible and fun. On-screen presenters and demonstrators will be females and males of various ages, ethnicities and backgrounds, and will include celebrities and physicists of note. A lean, layered design encourages repeated, cumulative study and makes the material useful for self-directed Teaming even by college students. THE REAL STUFF introduces a new science teaching paradigm, a way to teach science that will engage even students who have ``declined`` to be interested in science in the past. Increased participation in science by women, African-Americans and Spanish-speaking students is a particular goal.
Date: November 24, 1992
Creator: Rubin, E. L.
Object Type: Report
System: The UNT Digital Library
Review of Subcritical Source-Driven Noise Analysis Measurements (open access)

Review of Subcritical Source-Driven Noise Analysis Measurements

Subcritical source-driven noise measurements are simultaneous Rossi-{alpha} and randomly pulsed neutron measurements that provide measured quantities that can be related to the subcritical neutron multiplication factor. In fact, subcritical source-driven noise measurements should be performed in lieu of Rossi-{alpha} measurements because of the additional information that is obtained from noise measurements such as the spectral ratio and the coherence functions. The basic understanding of source-driven noise analysis measurements can be developed from a point reactor kinetics model to demonstrate how the measured quantities relate to the subcritical neutron multiplication factor. More elaborate models can also be developed using a generalized stochastic model. These measurements can be simulated using Monte Carlo codes to determine the subcritical neutron multiplication factor or to determine the sensitivity of calculations to nuclear cross section data. The interpretation of the measurement using a Monte Carlo method is based on a perturbation model for the relationship between the spectral ratio and the subcritical neutron multiplication factor. The subcritical source-driven noise measurement has advantages over other subcritical measurement methods in that reference measurements at delayed critical are not required for interpreting the measurements. Therefore, benchmark or in-situ subcritical measurements can be performed outside a critical experiment facility. Furthermore, …
Date: November 24, 1999
Creator: Valentine, T.E.
Object Type: Report
System: The UNT Digital Library
A Database of Herbaceous Vegetation Responses to Elevated Atmospheric CO{sub 2} (open access)

A Database of Herbaceous Vegetation Responses to Elevated Atmospheric CO{sub 2}

To perform a statistically rigorous meta-analysis of research results on the response by herbaceous vegetation to increased atmospheric CO{sub 2} levels, a multiparameter database of responses was compiled from the published literature. Seventy-eight independent CO{sub 2}-enrichment studies, covering 53 species and 26 response parameters, reported mean response, sample size, and variance of the response (either as standard deviation or standard error). An additional 43 studies, covering 25 species and 6 response parameters, did not report variances. This numeric data package accompanies the Carbon Dioxide Information Analysis Center's (CDIAC's) NDP-072, which provides similar information for woody vegetation. This numeric data package contains a 30-field data set of CO{sub 2}-exposure experiment responses by herbaceous plants (as both a flat ASCII file and a spreadsheet file), files listing the references to the CO{sub 2}-exposure experiments and specific comments relevant to the data in the data sets, and this documentation file (which includes SAS{reg_sign} and Fortran codes to read the ASCII data file). The data files and this documentation are available without charge on a variety of media and via the Internet from CDIAC.
Date: November 24, 1999
Creator: Jones, M.H.
Object Type: Report
System: The UNT Digital Library
Food Assistance: Efforts to Control Fraud and Abuse in the Child and Adult Care Food Program Should be Strengthened (open access)

Food Assistance: Efforts to Control Fraud and Abuse in the Child and Adult Care Food Program Should be Strengthened

A letter report issued by the General Accounting Office with an abstract that begins "GAO reviewed the Food and Nutrition Service's (FNS) efforts to control the fraud and abuses occurring in its state administered Child and Adult Care Food Program, focusing on: (1) the extent to which the states have implemented required and recommended controls to prevent and detect fraud and abuse; and (2) FNS' effectiveness in directing the states' efforts to implement these controls."
Date: November 24, 1999
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
324 Facility B-cell quality process plan (open access)

324 Facility B-cell quality process plan

Quality Process Plan for the Restart of Cell Hot-Work. Addition of Table 5B.
Date: November 24, 1998
Creator: RIDDELLE, J.G.
Object Type: Report
System: The UNT Digital Library
Ceramic Processing (open access)

Ceramic Processing

Ceramics represent a unique class of materials that are distinguished from common metals and plastics by their: (1) high hardness, stiffness, and good wear properties (i.e., abrasion resistance); (2) ability to withstand high temperatures (i.e., refractoriness); (3) chemical durability; and (4) electrical properties that allow them to be electrical insulators, semiconductors, or ionic conductors. Ceramics can be broken down into two general categories, traditional and advanced ceramics. Traditional ceramics include common household products such as clay pots, tiles, pipe, and bricks, porcelain china, sinks, and electrical insulators, and thermally insulating refractory bricks for ovens and fireplaces. Advanced ceramics, also referred to as ''high-tech'' ceramics, include products such as spark plug bodies, piston rings, catalyst supports, and water pump seals for automobiles, thermally insulating tiles for the space shuttle, sodium vapor lamp tubes in streetlights, and the capacitors, resistors, transducers, and varistors in the solid-state electronics we use daily. The major differences between traditional and advanced ceramics are in the processing tolerances and cost. Traditional ceramics are manufactured with inexpensive raw materials, are relatively tolerant of minor process deviations, and are relatively inexpensive. Advanced ceramics are typically made with more refined raw materials and processing to optimize a given property or …
Date: November 24, 1999
Creator: EWSUK,KEVIN G.
Object Type: Article
System: The UNT Digital Library
Corrosion Issues in Solder Joint Design and Service (open access)

Corrosion Issues in Solder Joint Design and Service

Corrosion is an important consideration in the design of a solder joint. It must be addressed with respect to the service environment or, as in the case of soldered conduit, as the nature of the medium being transported within piping or tubing. Galvanic-assisted corrosion is of particular concern, given the fact that solder joints are comprised of different metals or alloy compositions that are in contact with one-another. The (thermodynamic) potential for corrosion to take place in a particular environment requires the availability of the galvanic series for those conditions and which includes the metals or alloys in question. However, the corrosion kinetics, which actually determine the rate of material loss under the specified service conditions, are only available through laboratory evaluations or field data that are found in the existing literature or must be obtained by in-house testing.
Date: November 24, 1999
Creator: VIANCO,PAUL T.
Object Type: Article
System: The UNT Digital Library
Measurement of radiation dose using radiochromic film (open access)

Measurement of radiation dose using radiochromic film

We have irradiated samples of radiochromic film to doses between 0.005 and lMrad in a Co{sup 60} facility at ANL. The doses computed using the manufacturer`s calibration curves for the absorption at 600 and 510 nm have been compared with the dose obtained from ion chamber measurements. Excellent agreement is obtained and high precision can be maintained by baseline measurement of the films prior to irradiation, appropriate choice of film and wavelength used.
Date: November 24, 1992
Creator: Jankowski, D. J. & Proudfoot, J.
Object Type: Report
System: The UNT Digital Library
Adoption Promotion Legislation in the 105th Congress (open access)

Adoption Promotion Legislation in the 105th Congress

This report discusses the type of adoption legislation in the 105th Congress. Specifically, the report tackles the idea that children are kept in foster care too long and that this may cause lower adoption rates. The report also discusses the enormous support for this legislation in the Senate and the House.
Date: November 24, 1997
Creator: Spar, Karen
Object Type: Report
System: The UNT Digital Library
Long-Range Neutron Detection (open access)

Long-Range Neutron Detection

A neutron detector designed for detecting neutron sources at distances of 50 to 100 m has been constructed and tested. This detector has a large surface area (1 m^2) to enhance detection efficiency, and it contains a collimator and shielding to achieve direction sensitivity and reduce background. An unusual feature of the detector is that it contains no added moderator, such as polyethylene, to moderate fast neutrons before they reach the 3He detector. As a result, the detector is sensitive mainly to thermal neutrons. The moderator-free design reduces the weight of the detector, making it more portable, and it also aids in achieving directional sensitivity and background reduction. Test results show that moderated fission-neutron sources of strength about 3 * 10^5 n/s can be detected at a distance out to 70 m in a counting time of 1000 s. The best angular resolution of the detector is obtained at distances of 30 m or less. As the separation distance between the source and detector increases, the contribution of scattered neutrons to the measured signal increases with a resultant decrease in the ability to detect the direction to a distant source. Applications for which the long-range detector appears to be suitable …
Date: November 24, 1999
Creator: Peurrung, Anthony J.; Stromswold, David C.; Hansen, Randy R.; Reeder, Paul L. & Barnett, Debra S.
Object Type: Report
System: The UNT Digital Library