Search Results

open access

Tritium half-life

Description: Least squares analyses of calorimetric measurements made at Mound Laboratory on two tritide compounds over a period of 18 y were performed to determine the half-life of tritium. A half-life of 12.3232 +- 0.0043 mean solar years was obtained.
Date: December 22, 1977
Creator: Rudy, C. R. & Jordan, K. C.
Partner: UNT Libraries Government Documents Department
open access

Only source of energy

Description: Various plants that might play a role in the energy mix of the future are discussed and illustrated. Included among them are the Euphorbias and Guayule. (JGB)
Date: March 22, 1978
Creator: Calvin, G. J. & Calvin, M.
Partner: UNT Libraries Government Documents Department
open access

D/sup -/ production by multiple charge-transfer collisions of low-energy D ions and atoms in cesium vapor

Description: The production of D/sup -/ by multiple charge-transfer collisions of a D/sup +/ beam in a cesium-vapor target is considered for D/sup +/ energies above 300 eV. The cross sections relevant to D/sup -/ formation are obtained by a least-squares fit of three-charge-state differential equations to experimental yield curves. Implications for production of intense negative-ion beams are discussed, and speculations are made about extrapolation to lower engeries.
Date: January 22, 1978
Creator: Hooper, E. B. Jr.; Willmann, P. A. & Schlachter, A. S.
Partner: UNT Libraries Government Documents Department
open access

Development of a three-dimensional model of the atmospheric boundary layer using the finite element method

Description: This report summarizes our current effort and ideas toward the development of a model for the planetary boundary layer using the finite element technique. As an initial step, the finite element methodology is applied to simpler version of the boundary layer equations given by the two-dimensional, constant-property, incompressible conservation equations (Navier-Stokes equations). Solution procedures for both the steady-state and transient equations are discussed. For the transient problem, a var… more
Date: November 22, 1977
Creator: Lee, R. L. & Gresho, P. M.
Partner: UNT Libraries Government Documents Department
open access

Effects of a hypothetical loss-of-coolant accident on a Mark I Boiling Water Reactor pressure-suppression system

Description: A loss-of-coolant accident (LOCA) in a boiling-water-reactor (BWR) power plant has never occurred. However, because this type of accident could be particularly severe, it is used as a principal theoretical basis for design. A series of consistent, versatile, and accurate air-water tests that simulate LOCA conditions has been completed on a /sup 1///sub 5/-scale Mark I BWR pressure-suppression system. Results from these tests are used to quantify the vertical-loading function and to study the as… more
Date: December 22, 1977
Creator: Pitts, J.H. & McCauley, E.W.
Partner: UNT Libraries Government Documents Department
open access

Review of issues relevant to acceptable risk criteria for nuclear waste management

Description: Development of acceptable risk criteria for nuclear waste management requires the translation of publicly determined goals and objectives into definitive issues which, in turn, require resolution. Since these issues are largely of a subjective nature, they cannot be resolved by technological methods. Development of acceptable risk criteria might best be accomplished by application of a systematic methodology for the optimal implementation of subjective values. Multi-attribute decision analysis … more
Date: February 22, 1978
Creator: Cohen, J.J.
Partner: UNT Libraries Government Documents Department
open access

Scaling of exploding pusher targets

Description: A theory of exploding pusher laser pusher targets is compared to results of LASNEX calculations and to Livermore experiments. A scaling relationship is described which predicts the optimum target/pulse combinations as a function of the laser power.
Date: August 22, 1977
Creator: Nuckolls, J.H.
Partner: UNT Libraries Government Documents Department
open access

Stability of space-charge neutralized beams

Description: Consideration is given to the stability of negative ion beams which are neutralized through ionization of a background gas. Two types of instabilities are examined. First, beam-plasma instabilities are analyzed with the dispersion relation showing that they are unimportant if the beam velocity is less than the electron thermal velocity. Second, results of a computer simulation on the flow of a cylindrical beam and the resulting background plasma show that when the background neutral gas density… more
Date: September 22, 1977
Creator: Turnbull, R. J. & Hooper, E. B. Jr.
Partner: UNT Libraries Government Documents Department
open access

Proposal to utilize fusion reactor energy sources for chemical process applications

Description: We propose to study the utilization of high-temperature (approximately 2000-2500K) process heat from fusion reactors for large-scale chemical process applications. Of particular interest is the decomposition reaction, CO/sub 2/ ..-->.. CO + /sup 1///sub 2/O/sub 2/, which at 2500K should yield approximately 60 percent conversion to CO if O/sub 2/ is partially removed through an oxide membrane. Hydrogen can be derived from CO at lower temperatures by reacting CO with steam, and C can also be d… more
Date: September 22, 1977
Creator: Krikorian, O. H.
Partner: UNT Libraries Government Documents Department
open access

Studies of encapsulant materials for terrestrial solar-cell arrays. First quarterly progress report, October 9--December 9, 1975

Description: Study 1 of this contract is entitled ''Evaluation of World Experience and Properties of Materials for Encapsulation of Terrestrial Solar-Cell Arrays.'' The approach of this study is to review and analyze world experience and to compile data on properties of encapsulants for photovoltaic cells and for related applications. The objective of the effort is to recommend candidate materials and processes for encapsulating terrestrial photovoltaic arrays at low cost for a service life greater than 20 … more
Date: December 22, 1975
Creator: Carmichael, D.C. (comp.)
Partner: UNT Libraries Government Documents Department
open access

Cold-pressure-welded joints in large multifilamentary Nb--Ti superconductors

Description: A number of mechanical and electrical measurements were made on joints in typical conductors for the proposed mirror fusion test facility (MFTF) and high field test facility (HFTF). For such measurements, a commercially available cold-pressure-welding machine was used. For joints in the MFTF conductor, which has a large proportion of superconductor, joint strength approached conductor strength. For the HFTF conductor, where the Cu-to-superconductor ratio is 4.33/1, the joint is stronger than th… more
Date: September 22, 1977
Creator: Cornish, D.N.; Deis, D.W. & Zbasnik, J.P.
Partner: UNT Libraries Government Documents Department
open access

Hazard-identification matrix for 10-MW/sub e/ solar-thermal central-receiver pilot plant: preliminary hazard-analysis input

Description: The hazard matrix is our gross identifier of potential solar collector subsystem hazards. The matrix will be used as a hazard reference in the accomplishment of the preliminary design hazard analysis, and to assist system design engineers in the evaluation of the specific subsystem design.
Date: November 22, 1978
Creator: Wander, H.R.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Redistricting]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 22, 1979, 5:00 p.m.
Duration: 40 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Rescue workers]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 22, 1979, 5:00 p.m.
Duration: 2 minutes 02 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Housing]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 22, 1979, 10:00 p.m.
Duration: 1 minute 54 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Council bonds]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 22, 1979, 6:00 p.m.
Duration: 1 minute 10 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Davis trial]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 22, 1979, 6:00 p.m.
Duration: 1 minute 14 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Drugs]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 22, 1979, 10:00 p.m.
Duration: 57 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Iran flag protest]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: November 22, 1979, 10:00 p.m.
Duration: 1 minute 32 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
Back to Top of Screen