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107
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30
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641
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201
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186
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Results:
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Effect of sulfuric acid, oxygen, and hydrogen in high-temperature water on stress corrosion cracking of sensitized Type 304 stainless steel
The influence of dissolved oxygen and hydrogen and dilute sulfuric acid in 289/sup 0/C water on the stress-corrosion-cracking susceptibility of lightly and moderately sensitized Type 304 stainless steel was determined in constant-extension-rate tensile (CERT) tests. The CERT parameters and the fracture surface morphologies were correlated with the concentrations of dissolved oxygen and sulfate, and the electrochemical potentials of platinum and Type 304 stainless steel electrodes in simulated boiling-water reactor (BWR) environments. A particularly high susceptibility to intergranular cracking was found for the steel in the lightly sensitized condition at oxygen concentrations between approx. 0.05 and 0.2 ppM under slightly acidic conditions (pH approx. 6.0 at 25/sup 0/C), which may, in part, account for the pervasive nature of intergranular cracking in BWR piping systems. Scanning-transmission electron microscopy analyses revealed significant differences between samples in the lightly and the moderately sensitized condition with respect to the width, but not the depth, of the chromium-depleted region at the grain boundaries. The addition of 0.5 ppM hydrogen to the water had only a small mitigating effect on intergranular cracking in water containing oxygen and sulfuric acid at low concentrations; however, oxygen suppression to less than or equal to 0.05 ppM in the reactor-coolant water, …
Date:
June 1, 1983
Creator:
Ruther, W.E.; Soppet, W.K.; Ayrault, G. & Kassner, T.F.
Object Type:
Article
System:
The UNT Digital Library
Direct chlorination process for geothermal power plant off-gas - hydrogen sulfide abatement
The Direct Chlorination Process removes hydrogen sulfide from geothermal off-gases by reacting hydrogen sulfide with chlorine in the gas phase. Hydrogen chloride and elemental sulfur are formed by this reaction. The Direct Chlorination Process has been successfully demonstrated by an on-site operation of a pilot plant at the 3 M We HPG-A geothermal power plant in the Puna District on the island of Hawaii. Over 99.5 percent hydrogen sulfide removal was achieved in a single reaction stage. Chlorine gas did not escape the pilot plant, even when 90 percent excess chlorine gas was used. Because of the higher cost of chemicals and the restricted markets in Hawaii, the economic viability of this process in Hawaii is questionable.
Date:
June 1, 1983
Creator:
Sims, A.V.
Object Type:
Report
System:
The UNT Digital Library
Nonlinear bending and collapse analysis of a poked cylinder and other point-loaded cylinders
This paper analyzes the geometrically nonlinear bending and collapse behavior of an elastic, simply supported cylindrical shell subjected to an inward-directed point load applied at midlength. The large displacement analysis results for this thin (R/t = 638) poked cylinder were obtained from the STAGSC-1 finite element computer program. STAGSC-1 results are also presented for two other point-loaded shell problems: a pinched cylinder (R/t = 100), and a venetian blind (R/t = 250).
Date:
June 1, 1983
Creator:
Sobel, L.H.
Object Type:
Article
System:
The UNT Digital Library
5. 8 GHz ophthalmic microwave applicator for treatment of choroidal melanoma
We report on the use of a 5.8 GHz microwave applicator to treat choroidal melanoma (Greene) in rabbits. The physical requirements needed to treat these intraocular tumors are quite different from those encountered elsewhere in the body. From a trans-scleral approach the penetration needed is minimal (5 to 10 mm.). The fibrous sclera is the only structure between the heat source and the tumor. The sclera has a relatively low water content when compared to tumor. This fact in addition to the frequency dependent interactions of tissue and electromagnetic radiation, results in an advantage to the use of the 5.8 GHz microwave device in treating intraocular malignancies.
Date:
June 1983
Creator:
Finger, Paul T.; Packer, Samuel; Svitra, Paul; Paglione, Robert W.; Albert, Daniel M. & Chess, Jeremy
Object Type:
Article
System:
The UNT Digital Library
Characterizing W-2 SLSF experiment temperature oscillations using computer graphics. [Sodium Loop Safety Facility]
The W-2 SLSF (Sodium Loop Safety Facility) experiment was an instrumented in-reactor test performed to characterize the failure response of full-length, preconditioned LMFBR prototypic fuel pins to slow transient overpower (TOP) conditions. Although the test results were expected to confirm analytical predictions of upper level failure and fuel expulsion, an axial midplane failure was experienced. Extensive post-test analyses were conducted to understand all of the unexpected behavior in the experiment. (1) The initial post-test effort focused on the temperature oscillations recorded by the 54 thermocouples used in the experiment. In order to synthesize the extensive data records and identify patterns of behavior in the data records, a computer-generated film was used to present the temperature data recorded during the experiment.
Date:
June 23, 1983
Creator:
Smith, D. E.
Object Type:
Article
System:
The UNT Digital Library
[Terry Tebedo - Cedar Springs]
A photograph of Terry Tebedo in Dallas, Texas, standing on a ladder and placing a a yellow Razzle Dazzle Dallas poster on a telephone pole in June of 1983. Razzle Dazzle Dallas is a local event celebrating LGBT Pride month in June. An American flag is above him on the pole. On the back of the photographer, there are Kodak stamps and a handwritten note: "Terry Tebedo w/RDP poster - on Cedar Springs, June 83."
Date:
June 1983
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Photograph 2012.201.B0111.0555]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "At the make a taco table are, from left, Julie Lorentz, Royce Brown, Patty Brown, Tina Franklin and Charlotte Piotner."
Date:
June 27, 1983
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Physics Division Annual Review: 1 April 1982-31March 1983
The research program in nuclear physics in the Physics Division spans a broad range of activities and contributes to many of the major questions in the discipline. Activities may be roughly divided into three broad categories. Research with the tandem-linac in heavy-ion physics is doing well, though laboring under severe budgetary constraints, and outside use of the facility has increased substantially. Progress on the construction of the full ATLAS facility is coming along expeditiously and it is expected to be completed on schedule in 1985. In medium-energy physics, activities are continuing at LAMPF, as well as other accelerators, though considerable effort was devoted this year to the preparation of a proposal for a national electron accelerator facility.
Date:
June 1983
Creator:
Gemmell, Donald S.
Object Type:
Report
System:
The UNT Digital Library
Thermal-Storage Device Based on High-Density Polyethylene: Interim Progress Report, June 1983
Report discussing a project to design, build, and test a latent heat storage device using cross-linked, high-density polyethylene (HDPE). This report provides an update on progress up to the point that the device is ready to test.
Date:
June 1983
Creator:
Cole, Roger Lynn
Object Type:
Report
System:
The UNT Digital Library
Design Guide for Calculating Fluid Damping for Circular Cylindrical Structures
Fluid damping plays an important role for structures submerged in fluid, subjected to flow, or conveying fluid. This design guide presents a summary of calculational procedures and design data for fluid damping for circular cylinders vibrating in quiescent fluid, crossflow, and parallel flow.
Date:
June 1983
Creator:
Chen, S. S.
Object Type:
Report
System:
The UNT Digital Library
Leakage-Flow-Induced Vibration of a Tube-in-Tube Slip Joint
The susceptibility of a cantilevered tube conveying water to self-excitation by leakage flow through a slip joint is assessed experimentally. The slip joint is formed by inserting a smaller, rigid tube into the free end of the cantilevered tube. Variations of the slip joint annular gaps and engagement lengths are tested, and several mechanisms for self-excitation are described.
Date:
June 1983
Creator:
Mulcahy, T. M.
Object Type:
Report
System:
The UNT Digital Library
Seasonal-Storage Solar-Energy Heating System for the Charlestown, Boston Navy Yard National Historic Park
This Phase II study provides further analysis for a seasonal-storage solar-heating system utilizing two existing underground, concrete tanks in the National Historic Park of the Charlestown Navy Yard in Boston. The initial Phase I study was reported in ANL-82-90. The new results focus on the effect of including a heat pump in the system to extend the useful heat-storage capacity of the tanks. The analysis was performed with MINSUN Version III, a computer simulation model written particularly for seasonal storage systems. Input parameters were derived in Phase I and reviewed and updated for this study. Three collector types were studied with and without a heat pump. Results indicate a definite performance and economic improvement for all collector types by including the heat pump. Flat plate collectors showed substantially greater improvement due to their more pronounced increase in efficiency at the lower inlet temperatures. With the heat pump, all three collectors provide comparable performance, and the flat plates were chosen as the design system due to their lower cost. A design system of 2300 meters sq. flat plate collectors with heat pump was selected. The system provides a solar fraction of 50% for the 2167 MWH annual heat load. The annualized …
Date:
June 1983
Creator:
Breger, Dwayne & Michaels, Allan I.
Object Type:
Report
System:
The UNT Digital Library
Endochronic Theory of Dynamic Viscoplasticity
This report summarizes the work completed on a project concerned with engineering models in dynamic plasticity. The concept of the endochronic theory of viscoplasticity and its subsequent improvement are discussed briefly. Applications and extensions of the theory to various dynamic problems are presented. In particular, the strain-rate effect in the improved endochronic theory and its application to wave propagation problems are discussed. Comparing the numerical results with other calculations and experimental data, it appears that endochronic theory provides a promising representation of realistic material behavior. At the same time endochronic theory is often numerically more efficient than other formulations.
Date:
June 1983
Creator:
Lin, Hsuan-Chi
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0107.0401]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Leading man mark Brink, center, welcomes his best fans, his parents Ross and Junabelle Brink who were there to see him as Nick Arnstein in "Funny Girl."
Date:
June 15, 1983
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0119A.0032]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Stan Byers, a craftsman 'of native American work entertains while he produces beads, belts and other goods in his authentic Indian teepee at a modern -day trapper rendezvous that draws fans of early American living..."
Date:
June 7, 1983
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0138.0684]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Kelly Coffman, of the Cardinals, floats a pitch towards the plate in a women's slow pitch softball game."
Date:
June 6, 1983
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0148.0527]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mr. and Mrs. Lon Critchfield"
Date:
June 3, 1983
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0192]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Debbie Durland, left, presides at a committee meeting in her home for chairmen of the upcoming Gallery of Fall Fashion V, sponsored by the Oklahoma Museum of Art Volunteer Association."
Date:
June 24, 1983
Creator:
Southerland, Paul B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0174.0209]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "The Stratford House Inn, a 40 unit motel, is Edmond's newest motel at 3020 S Broadway."
Date:
June 14, 1983
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0134.0598]
Caption: "Yong Lyndsey Huskey gets a better view of circus elephants Wednesday from the shoulders of her father, Jess Huskey of Midwest City."
Date:
June 22, 1983
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0171.0559]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A. C. Eason says his truck's no good and parked it fro three days in front of the dealership where he bought it."
Date:
June 14, 1983
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0149.0605]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Reporter Michael Crowden gets flying tips from pilot Pam Mitchell."
Date:
June 9, 1983
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0150.0281]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. Calder wood and Dr. and Mrs. Bob Eaton admire a pi���ata."
Date:
June 21, 1983
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0152.0691]
Picture of an elderly man wearing a hat that says "Golfers make the best swingers."
Date:
June 24, 1983
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History