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National Archives: Preserving Electronic Records in an Era of Rapidly Changing Technology
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the preservation of electronic records, focusing on the: (1) challenges that confront the National Archives and Records Administration (NARA) and federal agencies as a result of their increased reliance on electronic media; (2) status of selected agencies' and NARA's implementation of electronic records management (ERM); and (3) ERM policies and procedures of selected other governments (state and foreign)."
Date:
July 19, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
International radiobiology archives of long-term animal studies. I. Descriptions of participating institutions and studies
This document describes archived radiobiology animal studies. Information is presented on experimental details, pathology, radioactivity, results, dosimetry, status, and animal type employed.
Date:
July 1, 1996
Creator:
Gerber, G. B.; Watson, C. R.; Sugahara, T. & Okada, S.
Object Type:
Report
System:
The UNT Digital Library
[Letter from Phil Johnson to Don Baker about historical archives of the Dallas gay community]
Letter to Don Baker from Phil Johnson about the history of the gay community in Dallas and the Dallas Gay Historic Archives.
Date:
July 25, 1996
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
[Warranty Deed, July 3, 1895]
Warranty deed for the sale of land from A. L. Priest and his wife, Eddie S. Priest, to Charles B. Moore. The document is damaged and much of the information has been lost.
Date:
July 3, 1995
Creator:
Walden, J. A.
Object Type:
Legal Document
System:
The UNT Digital Library
"Change: From What to What?"
Text for a speech given by Barbara C. Jordan as the keynote address for the 1992 Democratic National Convention.
Date:
July 13, 1992
Creator:
Jordan, Barbara C.
Object Type:
Text
System:
The Portal to Texas History
"Change: From What to What?"
Text for a speech given by Barbara C. Jordan as the keynote address for the 1992 Democratic National Convention.
Date:
July 13, 1992
Creator:
Jordan, Barbara C.
Object Type:
Text
System:
The Portal to Texas History
State Legislatures: Ethics and the 1990s
Text of speech delivered by Barbara Jordan at the National Conference of State Legislatures in Cincinnati, Ohio. She discusses the political ethical environment of the 1990s, the behavior of legislators, and racism.
Date:
July 28, 1992
Creator:
Jordan, Barbara, 1936-1996
Object Type:
Text
System:
The Portal to Texas History
State Legislatures: Ethics and the 1990s
Text of speech delivered by Barbara Jordan at the National Conference of State Legislatures in Cincinnati, Ohio. She discusses the political ethical environment of the 1990s, the behavior of legislators, and racism.
Date:
July 28, 1992
Creator:
Jordan, Barbara, 1936-1996
Object Type:
Text
System:
The Portal to Texas History
[Speech by Barbara C. Jordan for The Forum Club]
Text for a speech made by Barbara C. Jordan before the Forum Club of Houston, Texas. Also included is a letter from Jan H. McTolf to Barbara C. Jordan giving her information about her speaking engagement and requesting information.
Date:
July 15, 1991
Creator:
Jordan, Barbara C.
Object Type:
Text
System:
The Portal to Texas History
[Letter from Charles F. Dambach to Professor Barbara Jordan - July 24, 1995]
Letter from Charles F. Dambach to Barbara C. Jordan, thanking her for agreeing to present the Shriver Award at the National Peace Corps Association's awards luncheon. Included with the letter is background information about the Peace Corps, the National Peace Corps Association, Sargent Shriver and Loret Ruppe (namesakes for awards presented), and the award winners (Robert A. Pastor and North Caroline Returned Peace Corps Volunteers).
Date:
July 24, 1995
Creator:
Dambach, Charles F.
Object Type:
Text
System:
The Portal to Texas History
Managing electronic records: A guideline
A committee at Martin Marietta Energy Systems (MMES) has drafted a guideline to assist offices in the management of electronic records. This paper will address the activities surrounding its creating. The guideline is for use by creators, users, and custodians of any type of electronic information. The guideline supports and supplements requirements from DOE and the National Archives and Records Administration (NARA), other internal processes such as system reviews, and the comprehensive records management program. While an in-house publication, it could prove useful to other organizations implementing an electronic records management program.
Date:
July 1, 1995
Creator:
Stewart, J.
Object Type:
Article
System:
The UNT Digital Library
The Virtual Library in Action
The SLAC Library has for many years provided SPIRES-HEP, a 300,000 record bibliographic database, to the world particle physics community via the Internet as well as through clone sites in Europe and Japan. The 1991 introduction of the e-print archives at LANL coupled with the World-Wide-Web (WWW) from CERN suddenly made it possible to provide easy linkage between bibliographic database records and the actual full-text of papers. The SLAC Library has turned this possibility into reality by converting hundreds of TeX source documents each month into viewable postscript complete with figures. These (now more than 20,000) postscript files are linked to the HEP database, and the full-text is rendered universally visible via WWW. We discuss the project, the collaboration of physicists and librarians, what is easy, what is hard, and our vision for the future.
Date:
July 2, 1999
Creator:
Addis, Louise
Object Type:
Report
System:
The UNT Digital Library
Controlling of incipient oxidation of pyrite for improved rejection. Sixth quarterly technical progress report, January 1, 1994--March 31, 1994
The major objectives of this work are (1) to determine the Eh-pH conditions under which pyrite is stable, (2) to determine the mechanism of the initial stages of pyrite oxidation, and (3) to determine if the semiconducting properties of pyrite affect its oxidation behavior. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. In this work clean, unoxidized pyrite surfaces are being produced by fracturing pyrite electrodes in an electrochemical cell. It has been shown that by holding the potential at different values during fracture and measuring the current passed at fracture, pyrite oxidation or reduction can be precisely controlled, or prevented. It has also been found that fresh pyrite surfaces, created by fracture in an electrochemical cell, begin to oxidize at potentials that are about 200 mV more negative than the potentials reported in the literature for pyrite oxidation. This is attributed to the fact that most work on pyrite has employed polished electrodes that have preexisting oxidation products on …
Date:
July 1, 1994
Creator:
Yoon, R. H. & Richardson, P. E.
Object Type:
Report
System:
The UNT Digital Library
Controlling incipient oxidation of pyrite for improved rejection. Technical progress report for the ninth quarter, October 1--December 31, 1994
The major objectives of this work are (1) to determine the Eh-pH conditions under which pyrite is stable, (2) to determine the mechanism of the initial stages of pyrite oxidation, and (3) to determine if the semi-conducting properties of pyrite effects its oxidation behavior. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. It has been shown that by holding the potential of pyrite at its stable potential during fracture, pyrite undergoes neither oxidation nor reduction. It has also been found that fresh pyrite surfaces created by fracture in an electrochemical begin to oxidize at potentials that are about 200 mV more negative than the potentials reported in the literature for pyrite oxidation. This report period, electrochemical impedance spectroscopy (EIS) studies were continued. As discussed in the seventh quarterly progress report, the impedance of pyrite does not show the characteristics expected for either semi-conducting or metallic electrodes. Additional studies were conducted to confirm the anomalous impedance behavior. For this purpose, freshly …
Date:
July 1, 1995
Creator:
Yoon, R. H. & Richardson, P. E.
Object Type:
Report
System:
The UNT Digital Library
Development of a video-based slurry sensor for on-line ash analysis. Technical progress report, third quarter, April 1, 1995--June 30, 1995
Automatic control of fine coal cleaning circuits has traditionally been limited by the lack of sensors for on-line ash analysis. Although several nuclear-based analyzers are available, none have seen widespread acceptance. This is largely due to the fact that nuclear sensors are expensive and tend to be influenced by changes in seam type and pyrite content Recently, researchers at VPI&SU have developed an optical sensor for phosphate analysis. The sensor uses image processing technology to analyze video images of phosphate ore. It is currently being used by Texas gulf for off-line analysis of dry flotation concentrates. The primary advantages of optical sensors over nuclear sensors are that they are significantly cheaper, are not subject to measurement variations due to changes in high atomic number minerals, are inherently safer and require no special radiation permitting. The purpose of this work is to apply the knowledge gained in the development of an optical phosphate analyzer to the development of an on-line ash analyzer for fine coal slurries. During the past quarter, a new prototype sample presentation system for the optical analyzer has been developed. This new approach appears to solve the problems encountered with previous prototypes. A qualitative comparison of the images …
Date:
July 25, 1995
Creator:
Adel, G. T. & Luttrell, G. H.
Object Type:
Report
System:
The UNT Digital Library
Classification of time series patterns from complex dynamic systems
An increasing availability of high-performance computing and data storage media at decreasing cost is making possible the proliferation of large-scale numerical databases and data warehouses. Numeric warehousing enterprises on the order of hundreds of gigabytes to terabytes are a reality in many fields such as finance, retail sales, process systems monitoring, biomedical monitoring, surveillance and transportation. Large-scale databases are becoming more accessible to larger user communities through the internet, web-based applications and database connectivity. Consequently, most researchers now have access to a variety of massive datasets. This trend will probably only continue to grow over the next several years. Unfortunately, the availability of integrated tools to explore, analyze and understand the data warehoused in these archives is lagging far behind the ability to gain access to the same data. In particular, locating and identifying patterns of interest in numerical time series data is an increasingly important problem for which there are few available techniques. Temporal pattern recognition poses many interesting problems in classification, segmentation, prediction, diagnosis and anomaly detection. This research focuses on the problem of classification or characterization of numerical time series data. Highway vehicles and their drivers are examples of complex dynamic systems (CDS) which are being used …
Date:
July 1, 1998
Creator:
Schryver, J.C. & Rao, N.
Object Type:
Report
System:
The UNT Digital Library
Precombustion removal of hazardous air pollutant precursors. Third quarterly technical progress report, April 1, 1996--June 30, 1996
This project involves the development of an optimized, bench-scale processing circuit capable of efficiently removing trace elements from run-of-mine coals. The optimized circuit will be developed using characterization data obtained from detailed washability studies and release analyses tests conducted with several eastern US coals. The optimized circuit will incorporate a variety of conventional and advanced coal cleaning processes which are believed to be the most cost-effective and commercially viable. The coal products from the optimized circuit will be further treated with complexing agents specifically designed to extract organometallic trace elements that are difficult to remove by physical cleaning operations. Finally, innovative bioremediation schemes will be investigated as a means of controlling the release of trace elements from the process waste streams. Emphasis has been placed on the development of a processing circuit which maximizes the rejection of trace elements, minimizes the production of coal fines which are costly to process and less marketable, and minimizes the downstream impacts of the process waste streams on the environment. During the past quarter, the project work plan and all associated technical/management reports were successfully approved. Activities associated with the selection and acquisition of all three base coal samples have also been completed. Characterization …
Date:
July 19, 1996
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. 18, January 1, 1993--March 31, 1993
This task is the actual demonstration of the advanced froth flotation technology. All previous work has led to this task. ICF KE technicians and process engineers from the team will operate the plant over a 10 month period to demonstrate the capability of the technology to remove 85% of the pyritic sulfur from three different test coals while recovering at least 85% of the as-mined coal`s energy content. Six major subtasks have been included to better define the overall work scope for this task. The ICF KE team will test the Pittsburgh No. 8 seam, the Illinois No. 6 seam and the Upper Freeport seam; the team will operate the circuit in a continuous run; the team will analyze all samples generated in those runs and will develop a plan to store and dispose of the coal and refuse products. All laboratory data generated will be accessible to all team members and the DOE. The test program for the Pittsburgh No. 8 coal began during March 1, 1993. An arrangement has been made between ICF Kaiser Engineers (ICF KE) and American Electric Power (AEP), who is the host for the DOE POC facility. The arrangement calls for AEP to purchase …
Date:
July 1, 1993
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. 26, January 1, 1995--March 31, 1995
A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1,300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery. 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 …
Date:
July 1, 1995
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Human radiation studies: Remembering the early years. Oral history of biophysicist Cornelius A. Tobias, Ph.D., January 16, 1995
Dr. Cornelius A. Tobias was interviewed by representatives of US DOE Office of Human Radiation Experiments (OHRE). He was chosen for this interview because of his extensive biophysics and medical physics research activities while he was employed by the University of California, Berkeley and San Francisco and at the Donner Laboratory. He discusses his involvement in wartime studies of effects of high altitude on aviators, carbon monoxide with radioactive tracers, blood studies with radioactive iron, human use committees, heavy-ion research with the Bevatron, boron isotope research, classified research involving human subjects, heavy-particle radiography, heavy- particle beams and medical research, and pituitary irradiation studies,.
Date:
July 1, 1995
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Tech Area II: A history
This report documents the history of the major buildings in Sandia National Laboratories` Technical Area II. It was prepared in support of the Department of Energy`s compliance with Section 106 of the National Historic Preservation Act. Technical Area II was designed and constructed in 1948 specifically for the final assembly of the non-nuclear components of nuclear weapons, and was the primary site conducting such assembly until 1952. Both the architecture and location of the oldest buildings in the area reflect their original purpose. Assembly activities continued in Area II from 1952 to 1957, but the major responsibility for this work shifted to other sites in the Atomic Energy Commission`s integrated contractor complex. Gradually, additional buildings were constructed and the original buildings were modified. After 1960, the Area`s primary purpose was the research and testing of high-explosive components for nuclear weapons. In 1994, Sandia constructed new facilities for work on high-explosive components outside of the original Area II diamond-shaped parcel. Most of the buildings in the area are vacant and Sandia has no plans to use them. They are proposed for decontamination and demolition as funding becomes available.
Date:
July 1, 1998
Creator:
Ullrich, R.
Object Type:
Report
System:
The UNT Digital Library
Human radiation studies: Remembering the early years. Oral history of Dr. Nadine Foreman, M.D., August 19, 1994
Dr. Nadine Foreman was interviewed by representatives of the US DOE Office of Human Radiation Experiments (OHRE). Dr. Foreman was selected for interview because of the position she held at the University of California, San Francisco. Following a brief biographical sketch, Dr. Foreman describes her work with Dr. Mayo Soley using I-131 in treatment of hyperthyroidism, selection criteria for patients in the radioiodine project, work with Dr. Earl Miller, work at Highland Hospital, radioiodine treatment of diffuse toxic goiter (myxedema), the radiophosphorus and radioiodine programs with Dr. Bert Low-Beer, and treatment of polycythemia vera.
Date:
July 1, 1995
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Igniting the Light Elements: The Los Alamos Thermonuclear Weapon Project, 1942-1952
The American system of nuclear weapons research and development was conceived and developed not as a result of technological determinism, but by a number of individual architects who promoted the growth of this large technologically-based complex. While some of the technological artifacts of this system, such as the fission weapons used in World War II, have been the subject of many historical studies, their technical successors--fusion (or hydrogen) devices--are representative of the largely unstudied highly secret realms of nuclear weapons science and engineering. In the postwar period a small number of Los Alamos Scientific Laboratory's staff and affiliates were responsible for theoretical work on fusion weapons, yet the program was subject to both the provisions and constraints of the US Atomic Energy Commission, of which Los Alamos was a part. The Commission leadership's struggle to establish a mission for its network of laboratories, least of all to keep them operating, affected Los Alamos's leaders' decisions as to the course of weapons design and development projects. Adapting Thomas P. Hughes's ''large technological systems'' thesis, I focus on the technical, social, political, and human problems that nuclear weapons scientists faced while pursuing the thermonuclear project, demonstrating why the early American thermonuclear bomb …
Date:
July 1, 1999
Creator:
Fitzpatrick, Anne C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
[Historic Marker Application: McFaddin Post Office]
Application materials submitted to the Texas Historical Commission requesting a historic marker for the McFaddin Post Office, in Victoria, Texas. The materials include the inscription text of the marker, narrative, and photographs.
Date:
July 8, 1991
Creator:
Texas Historical Commission
Object Type:
Text
System:
The Portal to Texas History