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782
Numerical simulation of MHD for electromagnetic edge dam in continuous casting.
A computer model was developed to predict eddy currents and fluid flows in molten steel. The model was verified by comparing predictions with experimental results of liquid-metal containment and fluid flow in electromagnetic (EM) edge dams (EMDs) designed at Inland Steel for twin-roll casting. The model can optimize the EMD design so it is suitable for application, and minimize expensive, time-consuming full-scale testing. Numerical simulation was performed by coupling a three-dimensional (3-D) finite-element EM code (ELEKTRA) and a 3-D finite-difference fluids code (CaPS-EM) to solve heat transfer, fluid flow, and turbulence transport in a casting process that involves EM fields. ELEKTRA is able to predict the eddy-current distribution and the electromagnetic forces in complex geometries. CaPS-EM is capable of modeling fluid flows with free surfaces. Results of the numerical simulation compared measurements obtained from a static test.
Date:
March 30, 1999
Creator:
Chang, F. C.
Object Type:
Article
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 83, No. 129, Ed. 1 Tuesday, March 30, 1999
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
March 30, 1999
Creator:
Allam, Heather
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 106, No. 62, Ed. 1 Tuesday, March 30, 1999
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 30, 1999
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
PV energy program overview FY 1998
In this overview, the goals that were met in FY 1998 are highlighted along with progress that was made toward long-term goals for research, technology development, and applications. The manufacture, sale, and use of photovoltaic (PV) devices to generate electricity directly from sunlight has become a billion-dollar industry worldwide. The production capacity for PV modules in the US had doubled between 1993 and 1997. While continuing research to improve technology, one must work with industry to move this technology from the laboratory to the marketplace.
Date:
March 30, 1999
Creator:
Moon, S. & Gwinner, D.
Object Type:
Book
System:
The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 111, No. 41, Ed. 1 Tuesday, March 30, 1999
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
March 30, 1999
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Report on the Tau-Charm Physics Workshop
Research in the energy region between 3-5 GeV has been extraordinarily productive and among other discoveries has revealed the existence of the tau lepton and of the bound and bare states of the charmed quarks. The region encompasses a rich spectroscopy of charm-anticharm states and the states of the charmed quark combined with lighter components. Exploration of this interesting and important physics has not even been remotely exhausted in the past and the only machine in the world operating in a dedicated mode in this energy region is the BEPC collider at the Institute of High Energy Physics in China. Results relevant to this energy range have been, and continue to be, accumulated by many high energy physics colliders in the world as a by-product of their activities which emphasize other energy regions. This workshop was designed to address the status of the physics results which have accumulated in the 3-5 GeV range of energy and to explore the question whether it warrants a new collider to be constructed, specifically dedicated to this energy region but with highly superior performance as to luminosity (specifically 10{sup 33} cm{sup {minus}2} sec{sup {minus}1}) and incorporating additional parameters, such as the possibility of polarized …
Date:
March 30, 1999
Creator:
Perl, Martin
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 169, Ed. 1 Tuesday, March 30, 1999
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 30, 1999
Creator:
Horn, Richard A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Sealy News (Sealy, Tex.), Vol. 112, No. 26, Ed. 1 Tuesday, March 30, 1999
Semiweekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date:
March 30, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Strangeness production in Au+Au collisions at the AGS: recent results from E917.
Strangeness production in Au+Au collisions has been measured via the yields of K{sup +} , K{sup {minus}} at 6, 8 AGeV and of {bar {Lambda}} at 10.8 AGeV beam kinetic energy in experiment E917. By varying the collision centrally and beam energy, a systematic search for indications of new phenomena and in-medium effects under high baryon density is undertaken.
Date:
March 30, 1999
Creator:
Chang, W.-C.; Back, B. B.; Betts, R. R.; Britt, H. C.; Chang, W. C.; Gillitzer, A. et al.
Object Type:
Article
System:
The UNT Digital Library
UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING PHASE 3 RESTRUCTURED (3R)
In the early 90's GE recognized the need to introduce new technology to follow on to the ''F'' technology the Company introduced in 1988. By working with industry and DOE, GE helped shape the ATS program goal of demonstrating a gas turbine, combined-cycle system using natural gas as the primary fuel that achieves the following targets: system efficiency exceeding 60% lower heating value basis; environmental superiority under full-load operating conditions without the use of post-combustion emissions controls, environmental superiority includes limiting NO{sub 2} to less than 10 parts per mission by volume (dry basis) at 15% oxygen; busbar energy costs that are 10% less than current state-of-the-art turbine systems meeting the same environmental requirements; fuel-flexible designs operating on natural gas but also capable of being adapted to operate on coal-based, distillate, or biomass fuels; reliability-availability-maintainability (RAM) that is equivalent to modern advanced power generation systems; and commercial systems that could enter the market in the year 2000.
Date:
March 30, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
WET SOLIDS FLOW ENHANCEMENT
The elastic modulus E of wet granular material was found to be of the order of 0.25 MPa, this value does not compare well with the value predicted for a cubic array of spheres under Hertzian contact were the predicted values were in the order of 250 MPa . The strain-stress behavior of a wet granular media was measured using a split Parfitt tensile tester. In all cases the stress increases linearly with distance until the maximum uniaxial tensile stress is reached. The stress then decreases exponentially with distance after this maximum is reached. The linear region indicates that wet solids behave elastically for stresses below the tensile stresses and can store significant elastic energy. The elastic deformation cannot be explained by analyzing the behavior of individual capillary bridges and requires accounting for the deformation of the solids particles. The elastic modulus of the wet granular material remains unexplained. New information was found to support the experimental finding and a first theory to explain the very small elastic modulus is presented. A new model based on the used of the finite element method is being developed.
Date:
March 30, 1999
Creator:
Caram, Hugo S. & Foster, Natalie
Object Type:
Report
System:
The UNT Digital Library
The Gilmer Mirror (Gilmer, Tex.), Vol. 122, No. 9, Ed. 1 Saturday, January 30, 1999
Semiweekly newspaper from Gilmer, Texas that includes local, state, and national news along with advertising.
Date:
January 30, 1999
Creator:
Overton, Mac
Object Type:
Newspaper
System:
The Portal to Texas History
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 89, No. 9, Ed. 1 Saturday, January 30, 1999
Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 30, 1999
Creator:
Gann, Sherry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
TECHNOLOGY DEVELOPMENT FOR IRON AND COBALT FISCHER-TROPSCH CATALYSTS
The effects of copper on Fischer-Tropsch activity, selectivity and water-gas shift activity were studied over a wide range of syngas conversion. Three catalyst compositions were prepared for this study: (a) 100Fe/4.6Si/1.4K, (b) 100Fe/4.6Si/0.10Cu/1.4K and (c) 100Fe/4.6Si/2.0Cu/1.4K. The results are reported in Task 2. The literature review for cobalt catalysts is approximately 90% complete. Due to the size of the document, it has been submitted as a separate report labeled Task 6.
Date:
January 30, 1999
Creator:
Davis, Burtron H.
Object Type:
Report
System:
The UNT Digital Library