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5,867 Matching Results
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[News Script: Lubbock refugio]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
December 21, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
DEVELOPMENT OF RING-JOINT FLANGES FOR USE IN THE HRE-2
Ring-joint flanges were studied in thermal-cycle tests as part of the development work associated with Homogeneous Reactor Experiment No. 2 (HRE-2). The purpose of this study was to provide criteria for design, installation, and operation of joints that would remain leaktight under reactor operating temperatures and pressures. Joints ranging from 1/2 in., l500 lb to 4 in., 2500 lb and with various initial bolt loadings were cycled between room temperature and 636 deg F. It was demonstrated that when joints were made up to HRE-2 standards and specifications, leak rates of less than 0.25 x 10/sup -3/ g of water per day per inch of gasket pitch diameter could be routinely- attained. Undamaged gaskets could be reinstalled or new gaskets used with equal probability of achieving acceptable leak rates. The system installed in HRE-2 was provided with a high-pressure buffer system to ensure that the small amount of leakage to the cell would be nonradioactive. (auth)
Date:
December 21, 1961
Creator:
Robinson, J. N.; Lundin, M. I. & Spiewak, I.
Object Type:
Report
System:
The UNT Digital Library
Powerplant Productivity Improvement Study: project summary report
Key findings from the Illinois Powerplant Productivity Improvement Study are: (1) the historic performance (equivalent availability) of large generating units in Illinois is below national average performance; (2) cost-effective opportunities to improve performance exist, and utilities pursue many of these; (3) there are no strong regulatory disincentives to the undertaking of productivity improvement projects, but no strong incentives either; (4) current utility practices, procedures, and management philosophy toward improved productivity are being strengthened; (5) areas in which immediate attention is warranted include application of reliability engineering tools to the analysis of powerplant availability and more vigorous pursuit of opportunities for performance improvements; (6) DOE systematic methodology for analysis of productivity improvement projects was demonstrated at three units and found to be useful; (7) the potential for improved productivity was estimated to be of the order of 2% in planned and forced outage rates; (8) if a 5% improvement were to be attained, cumulative (through 1990) constant-dollar benefits would be approximately $500 million; (9) formula regulatory incentive mechanisms are presently in a developmental or experimental phase, but adoption by the State of Illinois does not appear warranted at this time; and (10) the Illinois Commerce Commission can encourage improved productivity by …
Date:
December 21, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Three-dimensional temperature history of a multipass filled weldment. Part 2. [HEATINGS]
Computer simulation of the three-dimensional temperature history in a multipass filled weldment was attempted by modifying a transient heat transfer code, HEATING5. The model includes temperature-dependent physical parameters, radiation and convection heat losses, turbulent and laminar convection in the molten pool, and variable arc velocity, intensity, and weld geometry. The model requires approximately 28 CPU min to simulate one second of welding. 15 figures, 8 tables.
Date:
December 21, 1976
Creator:
Pinkowish, J.A. & Whitman, P.K.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Detention arrest]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
December 21, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Commercialization of a High Energy Neutral Beam Ion Source. Final Report
This final report summarizes the effort and presents the results of a Phase II fabrication effort to build an industrial prototype of the LBL developed high energy neutral beam source. The effort was primarily concentrated on incorporating hard vacuum dielectric seals and a ceramic high voltage accelerator insulator. Several other design changes were incorporated for cost, reliability or life improvements to include: (1) accelerator grid locating dowel pins to aid final alignment, (2) plasma source to accelerator captive fasteners to aid filament replacement during source maintenance, (3) molybdenum cooling tubes on all accelerator grids, (4) additional fasteners in the plasma generator to facilitate hard seals, (5) modified suppressor grid rails and holders to simplify final grid alignment, (6) adjusting screws on exit grid rail holders to simplify final grid alignment, (7) addition of adjusting screws to the grid end pieces to simplify alignment, and (8) addition of accelerator hat shims to allow two different grid positioning locations.
Date:
December 21, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Webber]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
December 21, 1993, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Fundamental study of crack initiation and propagation. [Computer model of ductile fracture]
Objective is to determine the fracture toughness of A533B-1 steel by computer modeling Charpy V-notch tests. A computer model of ductile fracture was developed that predicts fracture initiation. The model contains a set of material-dependent parameters obtained by computer simulations of small specimen tests. The computer calculations give detailed stress and strain histories up to the time of fracture, which are used to determine the model parameter values. The calibrated fracture model, that correctly predicts fracture initiation (and initiation energy) in the Charpy specimen, may then be used to simulate tests of accepted fracture-toughness specimens and hence obtain fracture toughness. The model parameters were calibrated to predict fracture in four different test specimens: two different notched-tension specimens, a simple tension specimen, and a precracked compact-tension specimen. The model was then used in a computer simulation of the Charpy V-notch specimen to initiate and advance a flat fracture. Results were compared with interrupted Charpy tests. Calibration of the model for two additional heat treatments of A533B-1 steel is in progress.
Date:
December 21, 1977
Creator:
Norris, D.M. Jr.; Reaugh, J.E.; Moran, B.; Quinones, D.F. & Wilkins, M.L.
Object Type:
Article
System:
The UNT Digital Library
DISCUSSION OF PERFORMANCE CALCULATIONS OF NUCLEAR ROCKET ENGINES
BS>Some of the fundamental relationships in a nuclear rocket engine are discussed. The equations required to calculate the performance of the rocket are presented. The problems associated with these calculations are also pointed out. (auth)
Date:
December 21, 1959
Creator:
Semple, E.L.
Object Type:
Report
System:
The UNT Digital Library
Absolute instrumental neutron activation analysis at Lawrence Livermore Laboratory
The Environmental Science Division at Lawrence Livermore Laboratory has in use a system of absolute Instrumental Neutron Activation Analysis (INAA). Basically, absolute INAA is dependent upon the absolute measurement of the disintegration rates of the nuclides produced by neutron capture. From such disintegration rate data, the amount of the target element present in the irradiated sample is calculated by dividing the observed disintegration rate for each nuclide by the expected value for the disintegration rate per microgram of the target element that produced the nuclide. In absolute INAA, the expected value for disintegration rate per microgram is calculated from nuclear parameters and from measured values of both thermal and epithermal neutron fluxes which were present during irradiation. Absolute INAA does not depend on the concurrent irradiation of elemental standards but does depend on the values for thermal and epithermal neutron capture cross-sections for the target nuclides. A description of the analytical method is presented.
Date:
December 21, 1977
Creator:
Heft, R.E.
Object Type:
Article
System:
The UNT Digital Library
Taloga Times-Advocate (Taloga, Okla.), Vol. 29, No. 28, Ed. 1 Thursday, December 21, 1922
Weekly newspaper from Taloga, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1922
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 5, No. 38, Ed. 1 Thursday, December 21, 1911
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1911
Creator:
Williams, R. T.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oklahoma State Register (Guthrie, Okla.), Vol. 26, No. 34, Ed. 1 Thursday, December 21, 1916
Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1916
Creator:
Golobie, John
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Mirror (Mangum, Okla.), Vol. 1, No. 80, Ed. 1 Friday, December 21, 1917
Semi-weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1917
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 9, No. 41, Ed. 1 Thursday, December 21, 1916
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1916
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla. Terr.), Vol. 18, No. 25, Ed. 1 Thursday, December 21, 1905
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
December 21, 1905
Creator:
Echols, R. C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Safeguard. (Guthrie, Okla.), Vol. 12, No. 47, Ed. 1 Thursday, December 21, 1905
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
December 21, 1905
Creator:
Buchanan, C. A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Tyrone Observer (Tyrone, Okla.), Vol. 19, No. 28, Ed. 1 Thursday, December 21, 1922
Weekly newspaper from Tyrone, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1922
Creator:
Mast, C. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Foss Enterprise. (Foss, Okla.), Vol. 6, No. 7, Ed. 1 Friday, December 21, 1906
Weekly newspaper from Foss, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
December 21, 1906
Creator:
Enterprise Printing Company
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
West and South. (Guthrie, Okla.), Vol. 3, No. 6, Ed. 1 Thursday, December 21, 1893
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
December 21, 1893
Creator:
Copeland, A. G.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Brinkman Courier. (Brinkman, Okla.), Vol. 1, No. 17, Ed. 1 Thursday, December 21, 1911
Weekly newspaper from Brinkman, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1911
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Weekly News. (Altus, Okla.), Vol. 18, No. 43, Ed. 1 Thursday, December 21, 1916
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
December 21, 1916
Creator:
Orr, J. P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Willow Times (Willow, Okla.), Vol. 2, No. 28, Ed. 1 Friday, December 21, 1917
Weekly newspaper from Willow, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1917
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 32, No. 43, Ed. 1 Thursday, December 21, 1922
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 1922
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History