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483 Matching Results
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Fifteenth Street News (Midwest City, Okla.), Vol. 21, No. 15, Ed. 1 Monday, January 11, 1993
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 11, 1993
Creator:
Addington, Kathy
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Boerne Star (Boerne, Tex.), Vol. 89, No. 35, Ed. 1 Wednesday, August 11, 1993
Weekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
August 11, 1993
Creator:
Aldridge, Leon & Priddy, Travis
Object Type:
Newspaper
System:
The Portal to Texas History
Internal dosimetry performing dose assessments via bioassay measurements
The Internal Dosimetry Department at the Y-12 Plant maintains a state-of-the-art bioassay program managed under the guidance and regulations of the Department of Energy. The two major bioassay techniques currently used at Y-12 are the in vitro (urinalysis) and in vivo (lung counting) programs. Fecal analysis (as part of the in vitro program) is another alternative; however, since both urine and fecal analysis provide essentially the same capabilities for detecting exposures to uranium, the urinalysis is the main choice primarily for aesthetic reasons. The bioassay frequency is based on meeting NCRP 87 objectives which are to monitor the accumulation of radioactive material in exposed individuals, and to ensure that significant depositions are detected.
Date:
May 11, 1993
Creator:
Bailey, K. M.
Object Type:
Report
System:
The UNT Digital Library
One dimensional simulations of transients in heavy ion injectors
A fast-running time-dependent one-dimensional particle code has been developed to simulate transients in both electrostatic quadrupole and electrostatic column heavy-ion injectors. Two-dimensional effects are incorporated through the use of an approximation to the transverse part of the Laplacian operator. Longitudinal electric fields are solved on a mesh. An external circuit is coupled to the column, and the effect of the beam on the circuit is modeled. Transients such as initial current spikes, space-charge de-bunching, and beam loading of the circuit, are simulated. Future directions for the code include introduction of envelope and centroid equations to provide beam radius and displacement information and the modeling of secondary electron currents arising from beam-spill.
Date:
May 11, 1993
Creator:
Barnard, J. J.; Caporaso, G. J.; Yu, S. S. & Eylon, E.
Object Type:
Article
System:
The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 105, No. 34, Ed. 1 Thursday, February 11, 1993
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
February 11, 1993
Creator:
Becknell, Kathleen Hill
Object Type:
Newspaper
System:
The Portal to Texas History
Rains County Leader (Emory, Tex.), Vol. 105, No. 38, Ed. 1 Thursday, March 11, 1993
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
March 11, 1993
Creator:
Becknell, Kathleen Hill
Object Type:
Newspaper
System:
The Portal to Texas History
Rains County Leader (Emory, Tex.), Vol. 106, No. 22, Ed. 1 Thursday, November 11, 1993
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1993
Creator:
Becknell, Kathleen Hill
Object Type:
Newspaper
System:
The Portal to Texas History
An experimental investigation of stimulated Brillouin scattering in laser-produced plasmas relevant to inertial confinement fusion
Despite the apparent simplicity of controlled fusion, there are many phenomena which have prevented its achievement. One phenomenon is laser-plasma instabilities. An investigation of one such instability, stimulated Brillouin scattering (SBS), is reported here. SBS is a parametric process whereby an electromagnetic wave (the parent wave) decays into another electromagnetic wave and an ion acoustic wave (the daughter waves). SBS impedes controlled fusion since it can scatter much or all of the incident laser light, resulting in poor drive symmetry and inefficient laser-plasma coupling. It is widely believed that SBS becomes convectively unstable--that is, it grows as it traverses the plasma. Though it has yet to be definitively tested, convective theory is often invoked to explain experimental observations, even when one or more of the theory`s assumptions are violated. In contrast, the experiments reported here not only obeyed the assumptions of the theory, but were also conducted in plasmas with peak densities well below quarter-critical density. This prevented other competing or coexisting phenomena from occurring, thereby providing clearly interpretable results. These are the first SBS experiments that were designed to be both a clear test of linear convective theory and pertinent to controlled fusion research. A crucial part of this …
Date:
February 11, 1993
Creator:
Bradley, K. S.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 99, No. 32, Ed. 1 Thursday, February 11, 1993
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
February 11, 1993
Creator:
Bridges, G. Frank
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 99, No. 36, Ed. 1 Thursday, March 11, 1993
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
March 11, 1993
Creator:
Bridges, G. Frank
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 100, No. 18, Ed. 1 Thursday, November 11, 1993
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
November 11, 1993
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History
Imaging XUV spectroscopy of a Z-pinch plasma in the former Soviet Union
In 1991 a group of scientists from the Angara 5 pulsed power facility at the Kurchatov Institute in Troitsk, Russia had determined the thermal emission from an implosion of xenon gas onto an annular, molybdenum doped foam liner to be 30 TW/cm{sup 2}. This represents an extremely efficient conversion of energy into a high fluence radiation field. In order to verify this claim and better understand the process of producing radiation by means of a Z-pinch plasma device, a series of experiments were proposed through a collaboration from Sandia National Laboratory, Albuquerque, Los Alamos National Laboratory, and Lawrence Livermore National Laboratory. Due to previous experience with x-ray spectroscopic measurements in the XUV region, the team from Lawrence Livermore Lab took on the task of designing, constructing, and fielding the necessary diagnostic equipment to spatially and temporally resolve plasma temperatures throughout the implosion of the high Z foam target.
Date:
August 11, 1993
Creator:
Bruns, H. C.; Springer, P. T.; Emig, J. A.; Lanier, N. E. & Hernandez, J. A.
Object Type:
Article
System:
The UNT Digital Library
The Llano News (Llano, Tex.), Vol. 105, No. 17, Ed. 1 Thursday, February 11, 1993
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
February 11, 1993
Creator:
Buckner, Walter L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 105, No. 21, Ed. 1 Thursday, March 11, 1993
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
March 11, 1993
Creator:
Buckner, Walter L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 106, No. 4, Ed. 1 Thursday, November 11, 1993
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1993
Creator:
Buckner, Walter L.
Object Type:
Newspaper
System:
The Portal to Texas History
Summary of space nuclear reactor power systems, 1983--1992
This report summarizes major developments in the last ten years which have greatly expanded the space nuclear reactor power systems technology base. In the SP-100 program, after a competition between liquid-metal, gas-cooled, thermionic, and heat pipe reactors integrated with various combinations of thermoelectric thermionic, Brayton, Rankine, and Stirling energy conversion systems, three concepts:were selected for further evaluation. In 1985, the high-temperature (1,350 K), lithium-cooled reactor with thermoelectric conversion was selected for full scale development. Since then, significant progress has been achieved including the demonstration of a 7-y-life uranium nitride fuel pin. Progress on the lithium-cooled reactor with thermoelectrics has progressed from a concept, through a generic flight system design, to the design, development, and testing of specific components. Meanwhile, the USSR in 1987--88 orbited a new generation of nuclear power systems beyond the, thermoelectric plants on the RORSAT satellites. The US has continued to advance its own thermionic fuel element development, concentrating on a multicell fuel element configuration. Experimental work has demonstrated a single cell operating time of about 1 1/2-y. Technology advances have also been made in the Stirling engine; an advanced engine that operates at 1,050 K is ready for testing. Additional concepts have been studied and experiments …
Date:
August 11, 1993
Creator:
Buden, D.
Object Type:
Article
System:
The UNT Digital Library
Duval County Picture (San Diego, Tex.), Vol. 8, No. 32, Ed. 1 Wednesday, August 11, 1993
Weekly newspaper from San Diego, Texas that includes local, state, and national news along with advertising.
Date:
August 11, 1993
Creator:
Cardenas, Alfredo E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 77, No. 87, Ed. 1 Monday, January 11, 1993
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 11, 1993
Creator:
Clanahan, Holly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 77, No. 110, Ed. 1 Thursday, February 11, 1993
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 11, 1993
Creator:
Clanahan, Holly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Ingleside Index (Ingleside, Tex.), Vol. 44, No. 2, Ed. 1 Thursday, February 11, 1993
Weekly newspaper from Ingleside, Texas that includes local, state, and national news along with advertising.
Date:
February 11, 1993
Creator:
Cole, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Ingleside Index (Ingleside, Tex.), Vol. 44, No. 6, Ed. 1 Thursday, March 11, 1993
Weekly newspaper from Ingleside, Texas that includes local, state, and national news along with advertising.
Date:
March 11, 1993
Creator:
Cole, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Ingleside Index (Ingleside, Tex.), Vol. 44, No. 41, Ed. 1 Thursday, November 11, 1993
Weekly newspaper from Ingleside, Texas that includes local, state, and national news along with advertising.
Date:
November 11, 1993
Creator:
Cole, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Wylie News (Wylie, Tex.), Vol. 47, No. 10, Ed. 1 Wednesday, August 11, 1993
Weekly newspaper from Wylie, Texas that includes local, state, and national news along with advertising.
Date:
August 11, 1993
Creator:
Cook, Margaret
Object Type:
Newspaper
System:
The Portal to Texas History
Application of ALE techniques to metal forming simulations
The utility of the arbitrary-Lagrangian-Eulerian (ALE) code format is evaluated in the context of use in simulating metal forming processes. Emphasis is on large deformation processes such as casting, forging and extrusion. The basic point at issue is whether the continual remapping capability inherent in the ALE approach can provide advantages relative to the more standard approach of using a Lagrangian mesh but allowing for isolated remeshing as required. A particular ALE implementation, ALE3D, is used as the basis for the discussion. Pros and cons for this approach are presented along with illustrations of its application to actual forming problems.
Date:
August 11, 1993
Creator:
Couch, R.; Sharp, R.; Otero, I.; Tipton, R. & McCallen, R.
Object Type:
Article
System:
The UNT Digital Library