580 Matching Results

Results open in a new window/tab.

[News Clip: Wines] captions transcript

[News Clip: Wines]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 31, 1978, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: School taxes] captions transcript

[News Clip: School taxes]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 31, 1978, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Fire (Medical Arts)] captions transcript

[News Clip: Fire (Medical Arts)]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 31, 1978, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Auction (Stock Show)] captions transcript

[News Clip: Auction (Stock Show)]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 31, 1978, 12:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Davis Hearing] captions transcript

[News Clip: Davis Hearing]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 31, 1978, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
Global Spent Fuel Logistics Systems Study (GSFLS). Volume 3A. GSFLS technical analysis (appendix). Interim report (open access)

Global Spent Fuel Logistics Systems Study (GSFLS). Volume 3A. GSFLS technical analysis (appendix). Interim report

This report is a part of the interim report documentation for the Global Spent Fuel Logistics System (GSFLS) study. The technical and financial considerations underlying a global spent fuel logistics systems have been studied and are reported. The Pacific Basin is used as a model throughout this report; however the stated methodology and, in many cases, considerations and conclusions are applicable to other global regions. Spent fuel discharge profiles for Pacific Basin Countries were used to determine the technical systems requirements for alternative concepts. Functional analyses and flows were generated to define both system design requirements and logistics parameters. A technology review was made to ascertain the state-of-the-art of relevant GSFLS technical systems. Modular GSFLS facility designs were developed using the information generated from the functional analysis and technology review. The modular facility designs were used as a basis for siting and cost estimates for various GSFLS alternatives. Various GSFLS concepts were analyzed from a financial and economic perspective in order to provide total concepts costs and ascertain financial and economic sensitivities to key GSFLS variations. Results of the study include quantification of GSFLS facility and hardware requirements; drawings of relevant GSFLS facility designs; system cost estimates; financial reports - …
Date: January 31, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Determination of bulk diffusion lengths for angle-lapped semiconductor material via the scanning electron microscope: a theoretical analysis (open access)

Determination of bulk diffusion lengths for angle-lapped semiconductor material via the scanning electron microscope: a theoretical analysis

A standard procedure for the determintion of the minority carrier diffusion length by means of a scanning electron microscope (SEM) consists in scanning across an angle-lapped surface of a P--N junction and measuring the resultant short circuit current I/sub sc/ as a function of beam position. A detailed analysis of the I/sub sc/ originating from this configuration is presented. It is found that, for a point source excitation, the I/sub sc/ depends very simply on x, the variable distance between the surfce and the junction edge. The expression for the I/sub sc/ of a planar junction device is well known. If d, the constant distance between the plane of the surface of the semiconductor and the junction edge in the expression for the I/sub sc/ of a planar junction is merely replaced by x, the variable distance of the corresponding angle-lapped junction, an expression results which is correct to within a small fraction of a percent as long as the angle between the surfaces, 2 theta/sub 1/, is amaller than 10/sup 0/.
Date: May 31, 1978
Creator: von Roos, O.
Object Type: Report
System: The UNT Digital Library
High-temperature explosive development for geothermal well stimulation. Final report (open access)

High-temperature explosive development for geothermal well stimulation. Final report

A two-component, temperature-resistant liquid explosive called HITEX has been developed which is capable of withstanding 561/sup 0/K (550/sup 0/F) for 24 hours in a geothermal environment. The explosive is intended for the stimulation of nonproducing or marginally producing geothermal (hot dry rock, vapor-dominated or hydrothermal) reservoirs by fracturing the strata in the vicinity of a borehole. The explosive is inherently safe because it is mixed below ground downhole from two nondetonable liquid components. Development and safety tests included differential scanning calorimetry, thermal stability, minerals compatibility, drop-weight sensitivity, adiabatic compression, electrostatic discharge sensitivity, friction sensitivity, detonation arrest capability, cook-off tests, detonability at ambient and elevated pressure, detonation velocity and thin film propagation in a wedge.
Date: March 31, 1978
Creator: Schmidt, E.W.; Mars, J.E. & Wang, C.
Object Type: Report
System: The UNT Digital Library
Baseline Gas Turbine Development Program. Twenty-First Quarterly Progress Report (open access)

Baseline Gas Turbine Development Program. Twenty-First Quarterly Progress Report

Progress is reported for a program whose goals are to demonstrate an experimental upgraded gas turbine-powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine-powered, compact-size American automobile. Activity during this twenty-first program quarter has continued to emphasize development towards correcting a power deficiency in the upgraded engine. Efforts are also being directed towards reducing fuel usage through improved heat recovery and towards improving the mechanical reliability and control of the engine.
Date: January 31, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Small power systems study technical summary report. Volume II. Inventory of small generating units in U. S. utility systems (open access)

Small power systems study technical summary report. Volume II. Inventory of small generating units in U. S. utility systems

Data identifying small (less than or equal to 10 MW) power units in the United States are tabulated. The data are listed alphabetically by state and are reported sequentially for investor owned utilities, municipal utilities, and electrical cooperatives and other utility systems. For a given utility system, the generating units are divided into steam turbines, diesel generators and gas turbines. The number and size of generating units are listed. A summary tabulation of the number of generating units of each type and total generating capacity by state is presented.
Date: May 31, 1978
Creator: Sitney, L.R.
Object Type: Report
System: The UNT Digital Library
Thin film battery/fuel cell power generating system. Final report, Task E-4, April 1976-April 1978 (open access)

Thin film battery/fuel cell power generating system. Final report, Task E-4, April 1976-April 1978

A two-year researth program to design and demonstrate the technical feasibility of a high-temperature solid-electrolyte fuel cell is described in detail. A rare-earth chromite, in particular, La /sub 95/Mg /sub 05/Cr /sub 75/Al /sub 25/0/sub 3/ was identified, synthesized by RF-sputtering tested for resistivity, thermal expansion and inertness in contact with yttria-stabilized zirconia, and was found promising as a candidate interconnection material. Films of these interconnection materials have been successfully deposited onto stabilized zirconia tubes by electrochemical vapor deposition (EVD) and the technique has been used to fabricate such films in building fuel cell stacks. Tin-doped indium oxide and antimony-doped tin oxide air electrode current collector materials have been successfully (CVD) chemically vapor deposited, as thin films, onto zirconia tubes. Fabrication procedures for the preparation of thin films of the nickel-cermet fuel electrode and yttria-stabilized zirconia solid electrolyte have been re-verified and improved for use in preparing unit cells and cell stacks on the program. An in-house extrusion technology for porous calcia-stabilized zirconia tubes has been developed and has been used to provide suitable support tubes for component combination samples, unit cell and cell stack sample preparation. Test concepts for component combinations and for unit cells and cell stacks have …
Date: March 31, 1978
Creator: Feduska, W.
Object Type: Report
System: The UNT Digital Library
Data accumulation on the methane potential of the coal beds of Colorado. Final report (open access)

Data accumulation on the methane potential of the coal beds of Colorado. Final report

A two-year project was conducted to gather data that would assist in the evaluation of the methane potential of the coal beds of Colorado. It was found that a number of closed underground coal mines in the State had reported gassy conditions or had experienced fires and explosions of varied intensity and frequency. The majority of such occurrences have been in those areas characterized by coals of relatively low (i.e., below 31%) volatile matter (VM) content. The south half of the Raton Mesa coal region (Las Animas County) and the southeastern part of the Unita region (in Gunnison and Pitkin Counties) contain coals with the lowest percentages of VM, the gassiest producing mines, and the highest grade coking coal in the State. Five active mines in Pitkin County presently are emitting a total of over 8 million cu ft of methane per day. These mines produce the highest quality metallurgical-grade coal in the western US (high-volatile A and medium-volatile bituminous). The gassy coals in these two regions range from Late Cretaceous to Paleocene in age and usually occur in areas related to igneous activity of late Tertiary age. The VM percentages of Colorado coals can be used, with some caution, …
Date: March 31, 1978
Creator: Fender, H. B. & Murray, D. K.
Object Type: Report
System: The UNT Digital Library
LOFT primary coolant addition and Control Piping System stress analysis (open access)

LOFT primary coolant addition and Control Piping System stress analysis

A stress analysis was performed on the Primary Coolant Addition and Control Piping System to determine if it met the conditions of the ASME Code, Section III, for Class 2 components. Results indicate that the Addition and Control System does not meet Section III criteria as the system is now installed. Only hanger (support) modifications are required to bring the stresses within the limits set forth in the Code. A design temperature of 459/sup 0/F was assumed for the analysis. The specified design temperature of 650/sup 0/F has been revised by ECRA's L-5713 and L-5714.
Date: October 31, 1978
Creator: Murdock, S.M.
Object Type: Report
System: The UNT Digital Library
Annual technical progress report: reactor safety, Government fiscal year 1978 (open access)

Annual technical progress report: reactor safety, Government fiscal year 1978

Progress in LMFBR safety studies on accident debris behavior is reported under the following subtask titles: high-temperature-concentration aerosols, large-scale molten fuel tests, sodium release tests, and risk analysis.
Date: December 31, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Global Spent Fuel Logistics Systems Study (GSFLS). Volume 2A. GSFLS visit findings (appendix). Interim report (open access)

Global Spent Fuel Logistics Systems Study (GSFLS). Volume 2A. GSFLS visit findings (appendix). Interim report

This appendix is a part of the interim report documentation for the Global Spent Fuel Logistics System (GSFLS) study. This appendix provides the legal/regulatory reference material, supportive of Volume 2 - GSFLS Visit Finding and Evaluations; and certain background material on British Nuclear Fuel Limited (BNFL).
Date: January 31, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Global Spent Fuel Logistics Systems Study (GSFLS). Volume 2. GSFLS visit findings and evaluations. Interim report (open access)

Global Spent Fuel Logistics Systems Study (GSFLS). Volume 2. GSFLS visit findings and evaluations. Interim report

This report is a part of the interim report documentation for the Global Spent Fuel Logistics System (GSFLS) study. This report describes a global framework that evaluates spent fuel disposition requirements, influencing factors and strategies. A broad sampling of foreign governmental officials, electric utility spokesmen and nuclear power industry officials responsible for GSFLS policies, plans and programs were surveyed as to their views with respect to national and international GSFLS related considerations. The results of these GSFLS visit findings are presented herein. These findings were then evaluated in terms of technical, institutional and legal/regulatory implications. The GSFLS evaluations, in conjunction with perceived US spent fuel objectives, formed the basis for selecting a set of GSFLS strategies which are reported herein.
Date: January 31, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
LLL evaluated-nuclear-data library (ENDL): graphs of cross sections from the library. [Basic data for transport calculations] (open access)

LLL evaluated-nuclear-data library (ENDL): graphs of cross sections from the library. [Basic data for transport calculations]

Graphs of neutron cross sections and related parameters for the LLL ENDL are presented. LLL and others use the evaluated nuclear data given here for neutron transport and related calculations. This document presents data contained in the library as of October 31, 1978. Evaluations of 79 nuclides/elements have been changed since the 1976 edition. Five tables discuss the information in the report, while the cross sections themselves are included on six microfiche.
Date: October 31, 1978
Creator: Howerton, R.J.; Cullen, D.E.; MacGregor, M.H.; Perkins, S.T. & Plechaty, E.F.
Object Type: Report
System: The UNT Digital Library
Cadmium sulfide/copper heterojunction cell research. Technical progress report No. 1, September 30--December 31, 1977 (open access)

Cadmium sulfide/copper heterojunction cell research. Technical progress report No. 1, September 30--December 31, 1977

An approach for the research effort required to meet the program objective is described, leading to an outline of nine tasks comprising the planned program. Results of effort applied to tasks during the first quarter effort are described. Highlights include fabrication and evaluation of cells in Mo foil substrates, a new chemical etch method which may allow easy, rapid determination of CdS grain diameters in films, and preparation and preliminary evaluation of cell structures on single crystal CdS substrates. Several problems will require special effort in the future: poor adhesion of CdS film to Zn-plated Cu foil substrates and a high incidence of film defects attributed to particle spatter from the CdS evaporation source.
Date: July 31, 1978
Creator: Szedon, J. R.; Shirland, F. A. & Biter, W. J.
Object Type: Report
System: The UNT Digital Library
Design and development of a continuously variable ratio transmission for an automotive vehicle. Phase IV. Quarterly progress report (open access)

Design and development of a continuously variable ratio transmission for an automotive vehicle. Phase IV. Quarterly progress report

Progress in the design and development of a continuously variable ratio transmission for an automotive vehicle is reported. The Major automotive hydromechanical transmission development problem continues to be the reduction of hydrostatic noise and the project plan, therefore, concentrated on the new hydrostatic module. The potential for achieving acceptably low noise levels in the second generation hydromechanical transmission is to be assessed by comparing the noise levels of the hydrostatic modules for the first and second generation transmissions. A set of twelve test points was selected comprising of road load steady state and wide-open-throttle acceleration at 10, 20, 30, 40, 50 and 60 mph. The module operating conditions for the two transmissions at each of these twelve points were calculated. Baseline noise data was measured on the first generation module. The results are given testing of co-axial hydrostatic module for second generation hydromechanical transmission will be emphasized. (LCL)
Date: May 31, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Small power systems study. Volume. Study results. Technical summary report (open access)

Small power systems study. Volume. Study results. Technical summary report

The Division of Solar Technology of the Department of Energy is currently examining the market potential of a number of dispersed solar energy systems, including the small (less than or equal to 10 MW/sub e/) solar thermal power system. Small fossil-fueled generating units in the United States utility system, (i.e., investor-owned, municipal, and cooperatives) have a current capacity of approximately 8000 MW/sub e/ or about 1.5 percent of the total US electrical capacity, and provide a large potential market for small solar thermal power systems. The Small Power Systems Study has as its objective the determination of conditions under which small (less than or equal to 10 MW/sub e/) solar thermal power units can provide cost-effective electrical power to a variety of users. Potential users, in addition to the utility systems; include Department of Defense installations and applications, remote mining and/or lumbering operations, and other industrial power systems with and without cogeneration. The first year's results on the Small Power Systems Study are summarized. The data base used and the breakeven cost analysis are discussed. Information on both small (less than or equal to 10 MW/sub e/) generating units and the utility systems using them is presented as well as …
Date: May 31, 1978
Creator: Sitney, L.R.
Object Type: Report
System: The UNT Digital Library
Advanced gas cooled nuclear reactor materials evaluation and development program. Selection of candidate alloys. Vol. 1. Advanced gas cooled reactor systems definition (open access)

Advanced gas cooled nuclear reactor materials evaluation and development program. Selection of candidate alloys. Vol. 1. Advanced gas cooled reactor systems definition

Candidate alloys for a Very High Temperature Reactor (VHTR) Nuclear Process Heal (NPH) and Direct Cycle Helium Turbine (DCHT) applications in terms of the effect of the primary coolant exposure and thermal exposure were evaluated. (FS)
Date: October 31, 1978
Creator: Marvin, M. D.
Object Type: Report
System: The UNT Digital Library
Silicon on ceramic process. Silicon sheet growth and device development for the large-area silicon sheet and cell development tasks of the Low-Cost Solar Array Project. Annual report No. 3, September 20, 1977--September 29, 1978 (open access)

Silicon on ceramic process. Silicon sheet growth and device development for the large-area silicon sheet and cell development tasks of the Low-Cost Solar Array Project. Annual report No. 3, September 20, 1977--September 29, 1978

The objective of this research program is to investigate the technical and economic feasibility of producing solar-cell-quality sheet silicon by coating one surface of carbonized ceramic substrates with a thin layer of large-grain polycrystalline silicon from the melt. During the past year, the cell development task of the low-cost solar array project has also sponsored work leading to the solution of solar-cell-oriented problems unique to silicon-on-ceramic material. This work is described also. Fracture toughness and thermal shock measurements were made on various mullite compositions. The dip-coater experimentation involved using a variety of crucible positions and gas flow rates to improve coating speeds. The construction of the continuous coating facility was completed. Many modifications to the original design have been made to obtain better control of the temperature profile of the coater. An experimental dip-coater has been completed. The goal of this effort is to increase coating speeds to from 0.15 to 0.3 cm/sec without sacrificing material quality. The best slotted SOC cell fabricated to date has a 7.5 percent conversion efficiency (antireflective-coated, AM1, total area 4.1 cm/sup 2/). A standardized cell fabrication process was developed for slotted and unslotted SOC solar cells. Modeling activities have concentrated on three major areas: …
Date: October 31, 1978
Creator: Chapman, P W; Zook, J D; Heaps, J D; Maciolek, R B; Koepke, B; Grung, B L et al.
Object Type: Report
System: The UNT Digital Library
LOFT pressurizer surge and spray line piping thermal analysis, Class I review (open access)

LOFT pressurizer surge and spray line piping thermal analysis, Class I review

Previous thermal analyses of the LOFT pressurizer surge and spray line piping were reviewed to see that they meet the requirements of ASME Code, Class I piping specification (ANC-60139), and the LOFT pressurizer specification (ANC-60044).
Date: March 31, 1978
Creator: Kinnaman, T.L. & Chapman, R.L.
Object Type: Report
System: The UNT Digital Library
Evaluation of fuel resources and requirements for the magnetic fusion energy program (open access)

Evaluation of fuel resources and requirements for the magnetic fusion energy program

Information is given for each of the following topics: (1) requirements for experimental fusion power reactors, (2) tritium requirements, (3) sources of T, (4) T availability from DOE production reactors, (5) T availability from heavy-water reactors, (6) T availability from light-water reactors, (7) T availability from fuel reprocessing plants, (8) natural Li requirements and availability, (9) /sup 6/Li requirements and availability, and (10) availability of /sup 3/He or /sup 4/He. (MOW)
Date: October 31, 1978
Creator: Rhinehammer, T.B. & Wittenberg, L.J.
Object Type: Report
System: The UNT Digital Library