National Radiobiology Archives Distributed Access user's manual (open access)

National Radiobiology Archives Distributed Access user's manual

This User's Manual describes installation and use of the National Radiobiology Archives (NRA) Distributed Access package. The package consists of a distributed subset of information representative of the NRA databases and database access software which provide an introduction to the scope and style of the NRA Information Systems.
Date: November 1, 1991
Creator: Watson, C.; Smith, S. (Pacific Northwest Lab., Richland, WA (United States)) & Prather, J. (Linfield Coll., McMinnville, OR (United States))
Object Type: Report
System: The UNT Digital Library
Texas Libraries, Volume 52, Number 2, Summer 1991 (open access)

Texas Libraries, Volume 52, Number 2, Summer 1991

Quarterly journal about library issues in Texas including collection development, programming and activities, managements, and other topics of interest.
Date: Summer 1991
Creator: Texas State Library and Archives Commission
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
The study of multi-institutional collaborations in high-energy physics. Progress report, January 1989--March 1991 (open access)

The study of multi-institutional collaborations in high-energy physics. Progress report, January 1989--March 1991

Since World War II, the organizational framework for scientific research is increasingly the multi-institutional collaboration, especially in high-energy physics. A broad preliminary survey, into the functioning of research collaborations involving three or more institutions is described. The study is designed to identify patterns of collaborations, define the scope of the documentation problems, field-test possible solutions, recommend future actions, and build an archives of oral history interviews and other resources for scholarly use. Once the study is completed, its findings will be used to promote systems to document significant collaborative research.
Date: December 31, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Development of the chemical and electrochemical coal cleaning process (open access)

Development of the chemical and electrochemical coal cleaning process

Liberation studies on the Elkhorn No. 3 coal were completed in this quarter. The results obtained from the 65 {times} 150 mesh samples showed that the amount of mineral matter and pyrite liberated by the Chemical and Electrochemical Coal Cleaning (CECC) process increases with time. The free mineral matter undergoes some reduction in size during the CECC treatment and the majority of the liberated mineral particles in this sample are finer than 150 mesh. This is opposite that found for the Pittsburgh No. 8 coal, which may explain the better response of the Elkhorn No. 3 coal to CECC treatment. The continuous bench-scale unit was modified during the quarter to satisfy the health and safety requirements of the university. The unit was modified to ensure that any spill or leakage can be contained. Due to these modifications, continuous testing work was delayed.
Date: January 1, 1991
Creator: Basilio, C.I. & Yoon, Roe-Hoan.
Object Type: Report
System: The UNT Digital Library
Partial-wave analyses of hadron scattering below 2 GeV. Progress report May 1991--April 30, 1992 (open access)

Partial-wave analyses of hadron scattering below 2 GeV. Progress report May 1991--April 30, 1992

The Center for Analysis of Particle Scattering (CAPS) in the Department of Physics at Virginia Polytechnic Institute and State University has analyzed basic two-body hadron reactions below 2 GeV for the last two decades. Reactions studied were nucleon-nucleon, pion-nucleon, K{sup +}-nucleon and pion photoproduction systems. In addition to analyses of these systems, a computer graphics system (SAID) has been developed and disseminated to over 250 research institutions using VAX computers. The computer-interactive system for disseminating information on basic scattering reactions is also accessible to the physics community through TELNET on the VPI&SU physics department VAX. 6 refs.
Date: December 31, 1991
Creator: Arndt, Richard A. & Roper, L. David
Object Type: Report
System: The UNT Digital Library
Development of the chemical and electrochemical coal cleaning process. Technical progress report, July 1, 1991--September 30, 1991 (open access)

Development of the chemical and electrochemical coal cleaning process. Technical progress report, July 1, 1991--September 30, 1991

Liberation studies on the Elkhorn No. 3 coal were completed in this quarter. The results obtained from the 65 {times} 150 mesh samples showed that the amount of mineral matter and pyrite liberated by the Chemical and Electrochemical Coal Cleaning (CECC) process increases with time. The free mineral matter undergoes some reduction in size during the CECC treatment and the majority of the liberated mineral particles in this sample are finer than 150 mesh. This is opposite that found for the Pittsburgh No. 8 coal, which may explain the better response of the Elkhorn No. 3 coal to CECC treatment. The continuous bench-scale unit was modified during the quarter to satisfy the health and safety requirements of the university. The unit was modified to ensure that any spill or leakage can be contained. Due to these modifications, continuous testing work was delayed.
Date: December 31, 1991
Creator: Basilio, C. I. & Yoon, Roe-Hoan
Object Type: Report
System: The UNT Digital Library
Development of the chemical and electrochemical coal cleaning process. Technical progress report, October 1, 1991--December 31, 1991 (open access)

Development of the chemical and electrochemical coal cleaning process. Technical progress report, October 1, 1991--December 31, 1991

The continuous testing of the Chemical and Electrochemical Coal Cleaning (CECC) bench-scale unit (Task 6) was completed successfully in this quarter using Middle Wyodak and Elkhorn No. 3 coal samples. The CECC unit was run under the optimum conditions established for these coal samples in Task 4. For the Middle Wyodak coal, the ash content was reduced from 6.96% to as low 1.61%, corresponding to an ash rejection (by weight) of about 83%. The ash and sulfur contents of the Elkhorn No. 3 coal were reduced to as low as 1.8% and 0.9%. The average ash and sulfur rejections were calculated to be around 84% and 47%. The CECC continuous unit was used to treat -325 mesh Elkhorn No. 3 coal samples and gave ash and sulfur rejection values of as high as 77% and 66%. In these test, the clean -325 mesh coal particles were separated from the liberated mineral matter through microbubble column flotation, instead of wet-screening.
Date: December 31, 1991
Creator: Basilio, C. I. & Yoon, Roe-Hoan
Object Type: Report
System: The UNT Digital Library
Partial-wave analyses of hadron scattering below 2 GeV (open access)

Partial-wave analyses of hadron scattering below 2 GeV

The Center for Analysis of Particle Scattering (CAPS) in the Department of Physics at Virginia Polytechnic Institute and State University has analyzed basic two-body hadron reactions below 2 GeV for the last two decades. Reactions studied were nucleon-nucleon, pion-nucleon, K{sup +}-nucleon and pion photoproduction systems. In addition to analyses of these systems, a computer graphics system (SAID) has been developed and disseminated to over 250 research institutions using VAX computers. The computer-interactive system for disseminating information on basic scattering reactions is also accessible to the physics community through TELNET on the VPI SU physics department VAX. 6 refs.
Date: January 1, 1991
Creator: Arndt, Richard A. & Roper, L. David
Object Type: Report
System: The UNT Digital Library
Index of the Nevada Applied Ecology Group and associated publications available in the Coordination and Information Center (open access)

Index of the Nevada Applied Ecology Group and associated publications available in the Coordination and Information Center

This publication was created by the Coordination and Information Center (CIC) to provide a readily available research tool for use by researchers interested in a specific area covered in the holdings of the CIC Archives. The Nevada Applied Ecology Group (NAEG) was formed and functioned in agreement with Planning Directive NVO-76 (July 29, 1970 and revised January 1, 1974, (CIC-165845 and CIC-16439) respectively) to coordinate the ecological and other environmental programs necessary to support the continued nuclear testing activities; and to provide a mechanism to effectively comply with requirements of the National Environmental Policy Act of 1969, Executive Order 11514, and AEC Manual Chapter 0510.'' The publication contains only citations to documents currently available at the CIC. It represents a significant portion of the principal research findings of the Nevada Applied Ecology Group.
Date: February 1, 1991
Creator: Maza, B.G.
Object Type: Report
System: The UNT Digital Library
Development of the chemical and electrochemical coal cleaning process (open access)

Development of the chemical and electrochemical coal cleaning process

Studies concerning the use of flotation as an alternative method of separating liberated mineral matter from chemical/electrochemical coal cleaning (CECC) treated coal were continued using Elkhorn No. 3 coal. The results obtained using different methods of recovering the clean product after CECC treatment showed trends similar to those observed previously with Pittsburgh No. 8 coal. The use of flotation after CECC treatment of the Elkhorn No. 3 coal was found to be more efficient than wet-screening. Construction of the continuous bench-scale unit was completed in this quarter. The unit was modified to process 2 lbs/hr instead of the original design of 1 lb/hr so as to ensure efficient operation of the vacuum filter unit. Start-up of the continuous unit was successfully conducted and shakedown testings were started. Initial results show that the continuous unit was able to reduce the ash content of a recently acquired Wyodak coal sample to as low as 1.16%. 2 tabs.
Date: January 1, 1991
Creator: Basilio, C.I. & Yoon, Roe-Hoan.
Object Type: Report
System: The UNT Digital Library
Development of the chemical and electrochemical coal cleaning process (open access)

Development of the chemical and electrochemical coal cleaning process

The continuous testing of the Chemical and Electrochemical Coal Cleaning (CECC) bench-scale unit (Task 6) was completed successfully in this quarter using Middle Wyodak and Elkhorn No. 3 coal samples. The CECC unit was run under the optimum conditions established for these coal samples in Task 4. For the Middle Wyodak coal, the ash content was reduced from 6.96% to as low 1.61%, corresponding to an ash rejection (by weight) of about 83%. The ash and sulfur contents of the Elkhorn No. 3 coal were reduced to as low as 1.8% and 0.9%. The average ash and sulfur rejections were calculated to be around 84% and 47%. The CECC continuous unit was used to treat -325 mesh Elkhorn No. 3 coal samples and gave ash and sulfur rejection values of as high as 77% and 66%. In these test, the clean -325 mesh coal particles were separated from the liberated mineral matter through microbubble column flotation, instead of wet-screening.
Date: January 1, 1991
Creator: Basilio, C.I. & Yoon, Roe-Hoan.
Object Type: Report
System: The UNT Digital Library
An updated global grid point surface air temperature anomaly data set: 1851--1990 (open access)

An updated global grid point surface air temperature anomaly data set: 1851--1990

This document presents land-based monthly surface air temperature anomalies (departures from a 1951--1970 reference period mean) on a 5{degree} latitude by 10{degree} longitude global grid. Monthly surface air temperature anomalies (departures from a 1957--1975 reference period mean) for the Antarctic (grid points from 65{degree}S to 85{degree}S) are presented in a similar way as a separate data set. The data were derived primarily from the World Weather Records and the archives of the United Kingdom Meteorological Office. This long-term record of temperature anomalies may be used in studies addressing possible greenhouse-gas-induced climate changes. To date, the data have been employed in generating regional, hemispheric, and global time series for determining whether recent (i.e., post-1900) warming trends have taken place. This document also presents the monthly mean temperature records for the individual stations that were used to generate the set of gridded anomalies. The periods of record vary by station. Northern Hemisphere station data have been corrected for inhomogeneities, while Southern Hemisphere data are presented in uncorrected form. 14 refs., 11 figs., 10 tabs.
Date: October 1, 1991
Creator: Sepanski, R. J.; Boden, T. A. & Daniels, R. C.
Object Type: Report
System: The UNT Digital Library
An updated global grid point surface air temperature anomaly data set: 1851--1990 (open access)

An updated global grid point surface air temperature anomaly data set: 1851--1990

This document presents land-based monthly surface air temperature anomalies (departures from a 1951--1970 reference period mean) on a 5{degree} latitude by 10{degree} longitude global grid. Monthly surface air temperature anomalies (departures from a 1957--1975 reference period mean) for the Antarctic (grid points from 65{degree}S to 85{degree}S) are presented in a similar way as a separate data set. The data were derived primarily from the World Weather Records and the archives of the United Kingdom Meteorological Office. This long-term record of temperature anomalies may be used in studies addressing possible greenhouse-gas-induced climate changes. To date, the data have been employed in generating regional, hemispheric, and global time series for determining whether recent (i.e., post-1900) warming trends have taken place. This document also presents the monthly mean temperature records for the individual stations that were used to generate the set of gridded anomalies. The periods of record vary by station. Northern Hemisphere station data have been corrected for inhomogeneities, while Southern Hemisphere data are presented in uncorrected form. 14 refs., 11 figs., 10 tabs.
Date: October 1, 1991
Creator: Sepanski, R. J.; Boden, T. A. & Daniels, R. C.
Object Type: Report
System: The UNT Digital Library
Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation (open access)

Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation

This document a quarterly report prepared in accordance with the project reporting requirements covering the period from July 1, 1992 to September 30, 1992. This report provides a summary of the technical work undertaken during this period, highlighting the major results. A brief description of the work done prior to this quarter is provided in this report under the task headings. The overall project scope of the engineering development project is to conceptually develop a commercial flowsheet to maximize pyritic sulfur reduction at practical energy recovery values. This is being accomplished by utilizing the basic research data on the surface properties of coal, mineral matter and pyrite obtained from the Coal Surface Control for Advanced Fine Coal Flotation Project, to develop this conceptual flowsheet. The conceptual flowsheet must be examined to identify critical areas that need additional design data. This data will then be developed using batch and semi-continuous bench scale testing. In addition to actual bench scale testing, other unit operations from other industries processing fine material will be reviewed for potential application and incorporated into the design if appropriate. The conceptual flowsheet will be revised based on the results of the bench scale testing and areas will be …
Date: January 1, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation (open access)

Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation

The design criteria for each unit operation have been developed based upon a number of variables. These variables, at this time, are based upon the best engineering design information available to industry. A number of assumptions utilized in the design criteria are uncertain. The uncertainties of inert atmospheres for grinding and flotation as well as pyrite depressants were answered by the Surface Control Project. It was determined that inerting was not required and no new'' reagents were presented that improved the flotation results. In addition, Tasks 5 and 6 results indicated the required reagent dosage for conventional flotation and advanced flotation. Task 5 results also indicated the need for a clean coal,thickener, the flocculent dosages for both the clean coal and refuse thickeners, and final dewatering requirements. The results from Tasks 5 and 6 and summarized in Task 7 indicate several uncertainties that require continuous long duration testing. The first is the possibility of producing a grab product for both the Pittsburgh and Illinois No. 6 coals in conventional flotation. Second what does long-term recirculation of clarified water do to the product quality The verification process and real data obtained from Tasks 5 and 6 greatly reduced the capital and …
Date: January 1, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation. Quarterly Technical Progress Report No. 12, July 1, 1991--September 30, 1991 (open access)

Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation. Quarterly Technical Progress Report No. 12, July 1, 1991--September 30, 1991

The design criteria for each unit operation have been developed based upon a number of variables. These variables, at this time, are based upon the best engineering design information available to industry. A number of assumptions utilized in the design criteria are uncertain. The uncertainties of inert atmospheres for grinding and flotation as well as pyrite depressants were answered by the Surface Control Project. It was determined that inerting was not required and no ``new`` reagents were presented that improved the flotation results. In addition, Tasks 5 and 6 results indicated the required reagent dosage for conventional flotation and advanced flotation. Task 5 results also indicated the need for a clean coal,thickener, the flocculent dosages for both the clean coal and refuse thickeners, and final dewatering requirements. The results from Tasks 5 and 6 and summarized in Task 7 indicate several uncertainties that require continuous long duration testing. The first is the possibility of producing a grab product for both the Pittsburgh and Illinois No. 6 coals in conventional flotation. Second what does long-term recirculation of clarified water do to the product quality? The verification process and real data obtained from Tasks 5 and 6 greatly reduced the capital and …
Date: December 31, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation. Quarterly Technical Progress Report No. 11, April 1, 1991--June 30, 1991 (open access)

Engineering Development of Advanced Physical Fine Coal Cleaning Technologies: Froth Flotation. Quarterly Technical Progress Report No. 11, April 1, 1991--June 30, 1991

This document a quarterly report prepared in accordance with the project reporting requirements covering the period from July 1, 1992 to September 30, 1992. This report provides a summary of the technical work undertaken during this period, highlighting the major results. A brief description of the work done prior to this quarter is provided in this report under the task headings. The overall project scope of the engineering development project is to conceptually develop a commercial flowsheet to maximize pyritic sulfur reduction at practical energy recovery values. This is being accomplished by utilizing the basic research data on the surface properties of coal, mineral matter and pyrite obtained from the Coal Surface Control for Advanced Fine Coal Flotation Project, to develop this conceptual flowsheet. The conceptual flowsheet must be examined to identify critical areas that need additional design data. This data will then be developed using batch and semi-continuous bench scale testing. In addition to actual bench scale testing, other unit operations from other industries processing fine material will be reviewed for potential application and incorporated into the design if appropriate. The conceptual flowsheet will be revised based on the results of the bench scale testing and areas will be …
Date: December 31, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
A Texas Legacy The Old San Antonio Road And The Caminos Reales: A Tricentennial History, 1691-1991 (open access)

A Texas Legacy The Old San Antonio Road And The Caminos Reales: A Tricentennial History, 1691-1991

This document details the history and significance of the Old San Antonio Road, a transportation corridor between Texas and Mexico. It also outlines a program to identify, preserve, and maintain features/properties related to the corridor while sharing information with visitors, tourists, and the public.
Date: January 1991
Creator: McGraw, A. Joachim; Clark, John Wilburn, 1943- & Robbins, Elizabeth A.
Object Type: Book
System: The Portal to Texas History
Accessibility Guide to the Texas State Capitol (open access)

Accessibility Guide to the Texas State Capitol

Guide to the Texas State Capitol for disabled people describing the accessibility of the Capitol, grounds, and other buildings in the complex.
Date: April 28, 1991
Creator: Button, Betty & Dietz, Allen
Object Type: Book
System: The Portal to Texas History
Texas Attorney General Opinion: DM-40 (open access)

Texas Attorney General Opinion: DM-40

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 federal law authorizes a federal agency to require the Department of Human Services to delete certain information from personnel files (RQ-2152)
Date: September 12, 1991
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Tank 241-A-105 leak assessment (open access)

Tank 241-A-105 leak assessment

Tank 241-A-105 is one of 149 single shell tanks constructed at Hanford to contain and store highly radioactive wastes originating from the processing of spent nuclear reactor fuel. Radiation detection and temperature monitoring devices installed beneath the tank indicate that several episodes of leakage of waste from the tank have occurred. The aim of this study was to evaluate the previous estimates and reanalyze the data to provide a more accurate estimate of leakage from the tank. The principal conclusions of this study are as follows: Earlier investigators estimated leakage prior to August 1968 at 5,000 to 15,000 gallons. Their estimate appears reasonable. Leakage while the tank was being sluiced (8/68--11/70) probably exceeded 5,000 gallons, but probably did not exceed 30,000 gallons. Insufficient data are available to be more precise. Cooling water added to the tank during the sprinkling phase (11/70 -- 12/78) was approximately 610,000 gallons. Sufficient heat was generated in the tank to evaporate most, and perhaps nearly all, of this water. Radionuclides escaping into the soil under the tank cannot be estimated directly because of many uncertainties. Based on a range of leakage from 10,000 to 45,000 gallons, assumed compositions, and decayed to 1/1/91, radioactivity under the …
Date: June 1, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Pacific Northwest Laboratory annual report for 1990 to the DOE Office of Energy Research (open access)

Pacific Northwest Laboratory annual report for 1990 to the DOE Office of Energy Research

This report summarizes progress on OHER human health, biological, and general life sciences research programs conducted at PNL in FY 1990. The research develops the knowledge and scientific principles necessary to identify understand, and anticipate the long-term health consequences of energy-related radiation and chemicals. Our continuing emphasis is to decrease the uncertainty of health risk estimates from existing and developing energy-related technologies through an increased of understanding of how radiation and chemicals cause biological damage. The sequence of this report of PNL research reflects the OHER programmatic structure. The first section, on human health research, concerns epidemiological and statistical studies for assessing health risks. The next section contains reports of biological research in laboratory animals and in vitro cell systems, including research with radionuclides and chemicals. The general life sciences research section reports research conducted for the OHER human genome research program.
Date: June 1, 1991
Creator: Park, J. F.
Object Type: Report
System: The UNT Digital Library
Texas Capitol Complex Telephone Directory (open access)

Texas Capitol Complex Telephone Directory

Phone listings, locations, and contact for each department and individual personnel residing in the State Capitol Complex
Date: 1991
Creator: Texas. State Purchasing and General Services Commission.
Object Type: Text
System: The Portal to Texas History
Texas Register, Volume 16, Number 96, Pages 7665-7762, December 27, 1991 (open access)

Texas Register, Volume 16, Number 96, Pages 7665-7762, December 27, 1991

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: December 27, 1991
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History