Partner
UNT Libraries Special Collections
108
Oklahoma Historical Society
49
UNT Libraries Government Documents Department
46
Sterling Municipal Library
9
San Antonio Public Library
8
UNT Libraries
7
Calhoun County Public Library
5
Hopkins County Genealogical Society
5
Abilene Christian University Library
4
Burleson Public Library
4
64 More
Collection
Texas Digital Newspaper Program
113
KXAS-NBC 5 News Collection
83
Oklahoma Digital Newspaper Program
53
Tocker Foundation Grant
52
Office of Scientific & Technical Information Technical Reports
37
LGBT Collections
14
Chickasha Newspaper Collection
10
Sapulpa Herald
10
Sapulpa Area Newspaper Collection
10
Altus Times-Democrat
9
100 More
Country
States
Year
Month
Day
Language
343 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
343
next
Inventory of power plants in the United States 1990. [Contains glossary]
The purpose of this publication is to provide year-end statistics about electric generating units operated by electric utilities in the United States (the 50 States and the District of Columbia). The publication also provides a 10-year outlook of future generating unit additions. The Summary Statistics chapter contains aggregate capacity statistics at the national and various regional levels for operable electric generating units and planned electric generating unit additions. Aggregate capacity data at the national level are presented by energy source and by prime mover. Aggregate capacity data at the various regional levels are presented by prime energy source. Planned capacity additions in new units are summarized by year, 1991 through 2000. Additionally, this chapter contains a summary of electric generating unit retirements, by energy source and year, from 1991 through 2000. The chapter on Operable Electric Generating Units contains data about each operable electric generating unit and each electric generating unit that was retired from service during the year. Additionally, it contains a summary by energy source of electric generating unit capacity additions and retirements during 1990. Finally, the chapter on Projected Electric Generating Unit Additions contains data about each electric generating unit scheduled by electric utilities to start operation …
Date:
October 23, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A beam profile monitor for small electron beams
Measurement of beam properties at the foci of high energy linacs is difficult due to the small size of the waists in proposed and existing accelerators (1 nm {minus} 2 {mu}). This paper considers the use of bremsstrahlung radiation from thin foils to measure the size and phase space density these beams using nonimaging optics. The components of the system are described, and the ultimate resolution, evaluated theoretically for the case of the Final Focus Test Beam at Stanford Linear Accelerator Center, is a few nm. 13 refs., 4 figs. 1 tab.
Date:
January 23, 1991
Creator:
Norem, J.
Object Type:
Report
System:
The UNT Digital Library
Development of instrumentation for magnetic nondestructive evaluation
The use of failure-prone components in critical applications has been traditionally governed by removing such components from service prior to the expiration of their predicted life expectancy. Such early retirement of materials does not guarantee that a particular sample will not fail in actual usage. The increasing cost of such life expectancy based operation and increased demand for improved reliability in industrial settings has necessitated an alternate form of quality control. Modern applications employ nondestructive evaluation (NDE), also known as nondestructive testing (NDT), as a means of monitoring the levels and growth of defects in a material throughout its operational life. This thesis describes the modifications made to existing instrumentation used for magnetic measurements at the Center for Nondestructive Evaluation at Iowa State University. Development of a new portable instrument is also given. An overview of the structure and operation of this instrumentation is presented. This thesis discusses the application of the magnetic hysteresis and Barkhausen measurement techniques, described in Sections 1.3.1 and 1.3.2 respectively, to a number of ferromagnetic specimens. Specifically, measurements were made on a number of railroad steel specimens for fatigue characterization, and on specimens of Damascus steel and Terfenol-D for materials evaluation. 60 refs., 51 figs., …
Date:
September 23, 1991
Creator:
Hariharan, S.
Object Type:
Report
System:
The UNT Digital Library
Fiber-tile optical studies at Argonne
In support of a fiber-tile calorimeter for SDC, we have done studies on a number of topics. The most basic problems were light output and uniformity of response. Using a small electron beam, we have studied fiber placement, tile preparation, wrapping and masking, fiber splicing, fiber routing, phototube response, and some degradation factors. We found two configurations which produced more light output than the others and reasonably uniform response. We have chosen one of these to go into production for the EM test module on the basis of fiber routing for ease of assembly of the calorimeter. We have also applied some of the tools we developed to CDF end plug tile uniformity, shower max testing and development for a couple of detectors, and development of better techniques for radiation damage studies. 18 figs.
Date:
July 23, 1991
Creator:
Underwood, D.G.; Morgan, D.J. & Proudfoot, J.
Object Type:
Report
System:
The UNT Digital Library
Quantum Irreversibility and Chaos [Phys. Rev. Lett. 67, 2593 (1991)]
Corrections to an equation printed with a typographical error in Quantum Irreversibility and Chaos, Physical Review Letters 67, 2593 (1991).
Date:
December 23, 1991
Creator:
Bonci, Luca; Roncaglia, Roberto; West, Bruce J. & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Partitioning between sediment and porewater of radiocesium from Chernobyl fallout
As part of a joint USA/USSR Environmental Agreement to determine the distribution and concentration of Chernobyl radioactivity in the northwest Black Sea area, the sediment from eight stations was collected and analyzed to assess the ability of sediment from the northwest Black Sea to adsorb radiocesium. Two methods were used to determine partitioning between liquid and solid phases; batch tests and porewater separation. In the batch test, Cs-137 tracer was added to mixtures of sediment and bottom water, with contact solutions ranging from 85 Bq/ml to 1760 Bq/ml. The distribution ratios (R{sub D}) for individual batch tests ranged from 390 to 1770 ml/g. Isotherms were linear for all cores and R{sub D} values calculated from the slopes of the isotherms ranged from 660 to 1660 ml/g. A second approach was used to determine the partitioning of Cs-137 between the porewater and the sediment under more natural conditions. The top 2 cm of two cores were sectioned and the sediment and the porewater were separated. In both samples the sediment contained significant amounts of Cs-137 and Cs-134 indicating the presence of fallout from the Chernobyl reactor accident. There was no cesium activity observed in the porewater at a minimum detectable level …
Date:
April 23, 1991
Creator:
Fuhrmann, M.; Pietrzak, R. (Brookhaven National Lab., Upton, NY (USA)); Neiheisel, J. & Dyer, R. (Environmental Protection Agency, Washington, DC (USA))
Object Type:
Article
System:
The UNT Digital Library
Development of advanced NO sub x control concepts for coal-fired utility boilers
Hybrid technologies for reduction of NO{sub x} emissions from coal fired utility boilers may offer greater levels of NO{sub x} control than the sum of the individual technologies, leading to more cost effective emissions control strategies. Energy and Environmental Research Corporation had developed a hybrid NO{sub x} control strategy involving two proprietary concepts which has the potential to meet the US Department of Energy's goal at a significant reduction in cost compared to existing technology. The process has been named CombiNO{sub x}. CombiNO{sub x} is the integration of three separate NO control technologies: (1) Gas Reburning, (2) CO-Promoted Selective Non-Catalytic Reduction, and (3) Methanol Injection/NO{sub 2} Scrubbing.
Date:
December 23, 1991
Creator:
Newhall, J.; England, G. & Seeker, W. R.
Object Type:
Report
System:
The UNT Digital Library
A computer modeling study of isotopically selective, laser photodissociation of OCS in cryogenic solutions
Computer model calculations are presented for enrichments of carbon, oxygen, and sulfur isotopes by two-step, IR/UV, laser photodissociation of OCS in rare gas liquid solutions. The model calculations are based on previously measured fundamental physical properties, including spectroscopic parameters of the IR absorption bands of OCS in cryogenic solution, UV photodissociation cross sections for specific vibrational levels of OCS, and rates for vibrational relaxation of OCS by cryogenic solvents. Results are presented for both pulsed and continuous wave laser sources. Photodissociation through both the 2{nu}{sub 2} and {nu}{sub 1} intermediate vibrational levels of OCS is investigated. The laser characteristics required to obtain optimum enrichments are determined by modeling the dependence of enrichment on laser wavelength and intensity, as well as pulse width and timing for pulsed sources. Optimum carbon and oxygen isotope enrichment factors of 9--14 are found for two-step photodissociation through the OCS(2{nu}{sub 2}) vibrational level, using pulsed CO{sub 2} and KrF excimer laser sources. Optimum sulfur isotope enrichment factors of 5--6 are found for photodissociation through the OCS({nu}{sub 1}) level, using a pulsed 12 {mu}m laser and a KrF excimer laser. The enrichments found for continuous wave laser sources are smaller than those for pulsed sources. 19 figs., …
Date:
December 23, 1991
Creator:
Zittel, P.F.
Object Type:
Report
System:
The UNT Digital Library
[Press release: Task force launches lesbian and gay presidential initiative]
Press release announcing the agenda of the NGLTF to support pro-gay and -lesbian initiatives to candidates in the upcoming 1992 presidential race.
Date:
January 23, 1991
Creator:
National Gay and Lesbian Task Force (U.S.)
Object Type:
Text
System:
The UNT Digital Library
Press Release: Task Force launches lesbian and gay presidential initiative]
A press release about the National Gay and Lesbian Task Force launching a presidential initiative targeting Democratic and Republican conventions.
Date:
January 23, 1991
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[Notes: Quotes from Kay Vinson]
Quotes from Kay Vinson regarding the fund controversy surrounding the 1991 March on Austin.
Date:
July 23, 1991
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 83, No. 21, Ed. 1 Thursday, May 23, 1991
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
May 23, 1991
Creator:
Reynolds, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Crack shoot]
B-roll video footage from the WBAP-TV television station in Fort Worth, Texas, covering a news story. This story aired at 6pm.
Date:
February 23, 1991, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Taxi Safety Training]
Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date:
April 23, 1991
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Oak Ridge National Laboratory Corrective Action Plan in response to Tiger Team assessment
This report presents a complete response to the Tiger Team assessment that was conducted to Oak Ridge National Laboratory (ORNL) and at the US Department of Energy (DOE) Oak Ridge Operations Office (ORO) from October 2, 1990, through November 30, 1990. The action plans have undergone both a discipline review and a cross-cutting review with respect to root cause. In addition, the action plans have been integrated with initiatives being pursued across Martin Marietta Energy Systems, Inc., in response to Tiger Team findings at other DOE facilities operated by Energy Systems. The root cause section is complete and describes how ORNL intends to address the root cause of the findings identified during the assessment. This report is concerned with reactors safety and health findings, responses, and planned actions. Specific areas include: organization and administration; quality verification; operations; maintenance; training and certification; auxiliary systems; emergency preparedness; technical support; nuclear criticality safety; security/safety interface; experimental activities; site/facility safety review; radiological protection; personnel protection; fire protection; management findings, responses, and planned actions; self-assessment findings, responses, and planned actions; and summary of planned actions, schedules, and costs.
Date:
August 23, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Performance profiles of major energy producers 1989
Performance Profiles of Major Energy Producers 1989 is the thirteenth annual report of the Energy Information Administration's (EIA) Financial Reporting System (FRS). The report examines financial and operating developments, with particular reference to the 23 major energy companies (the FRS companies'') required to report annually on Form EIA-28. Financial information is reported by major lines of business including oil and gas production, petroleum refining and marketing, and other energy operations. Domestic and international operations are examined separately in this report. It also traces key developments affecting the financial performance of major energy companies in 1989, as well as review of important trends.
Date:
January 23, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Cabbie murdered (Ft Worth)]
Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date:
April 23, 1991, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Hooker case]
B-roll video footage from the WBAP-TV television station in Fort Worth, Texas, covering a news story.
Date:
March 23, 1991, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cabbie kill]
B-roll video footage from the WBAP-TV television station in Fort Worth, Texas, covering a news story.
Date:
April 23, 1991, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Oak Ridge National Laboratory Corrective Action Plan in response to Tiger Team assessment
This report presents a complete response to the Tiger Team assessment that was conducted at Oak Ridge National Laboratory (ORNL) and at the US Department of Energy (DOE) Oak Ridge Operations Office (ORO) from October 22, 1990, through November 30, 1990. The action plans have undergone both a discipline review and a cross-cutting review with respect to root cause. In addition, the action plans have been integrated with initiatives being pursued across Martin Marietta Energy Systems, Inc., in response to Tiger Team findings at other DOE facilities operated by Energy Systems. The root cause section is complete and describes how ORNL intends to address the root causes of the findings identified during the assessment. The action plan has benefited from a complete review by various offices at DOE Headquarters as well as review by the Tiger Team that conducted the assessment to ensure that the described actions are responsive to the observed problems.
Date:
August 23, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Pen Branch fault program: Consolidated report on the seismic reflection surveys and the shallow drilling
The Pen Branch fault was identified in the subsurface at the Savannah River Site (SRS) in 1989 based upon interpretation of earlier seismic reflection surveys and other geologic investigations (Seismorgraph Services Incorp., 1973; Chapman and DiStefano, 1989; Snipes, Fallaw and Price, 1989). A program was initiated at that time to determine the capability of the fault to release seismic energy (Price and others, 1989) as defined in the Nuclear Regulatory Commission regulatory guidelines, 10 CFR 100 Appendix A. This report presents the results of the Pen Branch fault investigation based on data acquired from seismic reflection surveys and shallow drilling across the fault completed at this time. The Earth Science Advisory Committee (ESAC) has reviewed the results of these investigations and unanimously agrees with the conclusion of Westinghouse Savannah River Company (WSRC) that the Pen Branch fault is a non-capable fault. ESAC is a committee of 12 earth science professionals from academia and industry with the charter of providing outside peer review of SRS geotechnical, seismic, and ground water modeling programs.
Date:
March 23, 1991
Creator:
Stieve, A. L.; Stephenson, D. E. & Aadland, R. K.
Object Type:
Report
System:
The UNT Digital Library
Development of advanced NO sub x control concepts for coal-fired utility boilers
Energy and Environmental Research Corporation (EER) is currently conducting a test program to develop an advanced NO{sub x} control method utilizing reburning, promoted selective noncatalytic agent injection. The study will consist of fundamental and process testing over a large enough range of operating parameters to significantly reduce the risk of a full scale demonstration project. The test plan for the fundamental testing phase of the program is presented here.
Date:
December 23, 1991
Creator:
Newhall, J.; England, G. & Seeker, W. R.
Object Type:
Report
System:
The UNT Digital Library
T839 fiber tracking transporter at New Muon Lab
A darkbox and its transporter have been designed for T839 fiber tracking tests. The darkbox is 3.35 m {times} 0.76 m {times} 0.25 m (1{center dot}w{center dot}h) and contains a scintillating fiber ribbon suspension system and mechanical hardware to support the readout electronics. The transporter provides 3.0 m of horizontal motion transverse to the beam for linear scans of fiber characteristics. In addition, 70 degrees of rotation about a vertical axis is provided to simulate tracking of particles emanating from a collision point at lab angles in the range 0{degrees}--70{degrees}. The transporter, which is located inside a radiation area, is remotely controlled to permit scanning the fiber array through the region defined by four small stationary triggering scintillators without disabling beam. The transporter rails extend 20 feet to the west beyond a gate in the radiation enclosure fencing. This provides a staging area to work on the apparatus, while the beam is on. 4 figs.
Date:
October 23, 1991
Creator:
Krider, J.
Object Type:
Report
System:
The UNT Digital Library
The AGS Booster high frequency rf system
A high level rf system, including a power amplifier and cavity, has been designed and built for the AGS Booster. It covers a frequency range of 2.4 to 4.2 MHz and will be used to accelerate high intensity protons. Low intensity polarized protons and heavy ions, to the 1.5 GeV level. A total accelerating voltage of up to 90 kV will be provided by two cavities, each having two gaps. The internally cross coupled, pushpull cavities are driven by an adjacently located power amplifier. In order to accommodate beam intensities up to 0.75 {times} 10{sup 13} protons per bunch, a low plate resistance power tetrode is used. The tube anode is magnetically coupled to one of the cavity's two parallel cells. The amplifier is a grounded cathode configuration driven by a remotely located solid-state amplifier. It has been tested in the laboratory at full gap voltage with satisfactory results. 5 refs., 2 figs., 1 tab.
Date:
April 23, 1991
Creator:
Sanders, R.T.; Cameron, P.; Eng, W.; Goldman, M.A.; Jablonski, E.; Kasha, D. et al.
Object Type:
Article
System:
The UNT Digital Library