Partner
UNT Libraries Government Documents Department
231
Oklahoma Historical Society
225
UNT Libraries Special Collections
50
National Museum of the Pacific War/Admiral Nimitz Foundation
28
Sterling Municipal Library
11
Alvin Community College
5
Dallas Area Rapid Transit (DART)
5
Carl Albert Congressional Research and Studies Center
4
Lee College
4
Patrick Heath Public Library
4
41 More
Collection
Jim Argo Collection
183
Office of Scientific & Technical Information Technical Reports
140
Texas Digital Newspaper Program
74
Congressional Research Service Reports
56
LGBT Collections
50
Oklahoma Digital Newspaper Program
47
Lone Star Ride Collection
43
Tocker Foundation Grant
42
National Museum of the Pacific War Oral History Collection
28
National Museum of the Pacific War Digital Archive
28
71 More
Degree Department
Country
Year
Month
Day
Language
Results:
1 - 24 of
626
next
Altus Times (Altus, Okla.), Vol. 103, No. 285, Ed. 1 Tuesday, January 29, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 29, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Apparatus and Method for Increasing the Diameter of Metal Alloy Wires Within a Molten Metal Pool
In a dip forming process the core material to be coated is introduced directly into a source block of coating material eliminating the need for a bushing entrance component. The process containment vessel or crucible is heated so that only a portion of the coating material becomes molten, leaving a solid portion of material as the entrance port of, and seal around, the core material. The crucible can contain molten and solid metals and is especially useful when coating core material with reactive metals. The source block of coating material has been machined to include a close tolerance hole of a size and shape to closely fit the core material. The core material moves first through the solid portion of the source block of coating material where the close tolerance hole has been machined, then through a solid/molten interface, and finally through the molten phase where the diameter of the core material is increased. The crucible may or may not require water-cooling depending upon the type of material used in crucible construction. The system may operate under vacuum, partial vacuum, atmospheric pressure, or positive pressure depending upon the type of source material being used.
Date:
January 29, 2002
Creator:
Hartman, Alan D.; Argetsinger, Edward R.; Hansen, Jeffrey S.; Paige, Jack I.; King, Paul E. & Turner, Paul C.
Object Type:
Patent
System:
The UNT Digital Library
Asymmetries between strange and antistrange particle production inpion-proton interactions
Recent measurements of the asymmetries between Feynman x-distributions of strange and antistrange hadrons in {pi}{sup -}A interactions show a strong effect as a function of x{sub F}. We calculate strange hadron production in the context of the intrinsic model and make predictions for particle/antiparticle asymmetries in these interactions.
Date:
January 29, 2002
Creator:
Gutierrez, T. D. & Vogt, R.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 80, No. 64, Ed. 1 Tuesday, January 29, 2002
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 29, 2002
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 97, No. 9, Ed. 1 Tuesday, January 29, 2002
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 29, 2002
Creator:
Keasling, Edna & Mahoney, Kent
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Tuesday, January 29, 2002
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
January 29, 2002
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Calibration of Seismic Attributes for Reservoir Characterization
This project has completed the initially scheduled third year of the contract, and is beginning a fourth year, designed to expand upon the tech transfer aspects of the project. From the Stratton data set, demonstrated that an apparent correlation between attributes derived along `phantom' horizons are artifacts of isopach changes; only if the interpreter understands that the interpretation is based on this correlation with bed thickening or thinning, can reliable interpretations of channel horizons and facies be made. From the Boonsville data set , developed techniques to use conventional seismic attributes, including seismic facies generated under various neural network procedures, to subdivide regional facies determined from logs into productive and non-productive subfacies, and developed a method involving cross-correlation of seismic waveforms to provide a reliable map of the various facies present in the area. The Teal South data set provided a surprising set of data, leading us to develop a pressure-dependent velocity relationship and to conclude that nearby reservoirs are undergoing a pressure drop in response to the production of the main reservoir, implying that oil is being lost through their spill points, never to be produced. The Wamsutter data set led to the use of unconventional attributes including lateral …
Date:
January 29, 2002
Creator:
Pennington, Wayne D.; Acevedo, Horacio; Green, Aaron; Len, Shawn; Minavea, Anastasia; Wood, James et al.
Object Type:
Report
System:
The UNT Digital Library
Cold Testing of a Russian Pulsating Mixer Pump at the Oak Ridge National Laboratory, Oak Ridge, Tennessee
Russian pulsating mixer pump (PMP) technology was identified in FY 1996 during technical exchanges between the U.S. Department of Energy (DOE) Tanks Focus Area Retrieval and Closure program, the DOE Environmental Management International Programs, and delegates from Russia as a technology that could be implemented in tank waste retrieval operations in the United States. The PMP is basically a jet mixer powered by a pressure/vacuum supply system. A prototype PMP was provided by the Russian Mining and Chemical Combine and evaluated as a potential retrieval tool in FY 1997 at Pacific Northwest National Laboratory (PNNL). Based on this evaluation, Oak Ridge National Laboratory (ORNL) and DOE staff determined that a modified PMP would meet project needs for bulk mobilization of sludge from one or more of the Gunite and Associated Tanks (GAAT) at ORNL. In FY 1998, PMP technology was selected for deployment in one of the GAAT to mobilize settled solids. Deployment of the PMP was expected to reduce operation and maintenance costs required to utilize more expensive retrieval systems. The following series of cold tests and inspections were conducted on one of the three PMP units provided to verify the acceptability and readiness of the mixing system for …
Date:
January 29, 2002
Creator:
Lewis, BE
Object Type:
Report
System:
The UNT Digital Library
Compressional Alfvin Eigenmode Dispersion in Low Aspect Ratio Plasmas
Recent observations of new fast ion beam driven instabilities in MHz frequency range in National Spherical Torus experiments (NSTX) are suggested to be Compressional Alfvin Eigenmodes (CAEs). A new theory of CAEs applicable to low aspect ratio toroidal plasmas is developed based on the ballooning representation for the poloidal dependence of the perturbed quantities. In agreement with observations, the analytical theory predicts that CAEs are discrete modes with frequencies correlated with the characteristic Alfvin velocity of the plasma. Plasma equilibrium structure is essential to determine accurately the dispersion of CAEs. The mode structure is localized in both the minor radius and the poloidal directions on the low magnetic field side.
Date:
January 29, 2002
Creator:
Gorelenkov, N. N.; Cheng, C. Z. & Fredrickson, E.
Object Type:
Report
System:
The UNT Digital Library
Daily Journal (Perry, Okla.), Vol. 109, No. 20, Ed. 1 Tuesday, January 29, 2002
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 29, 2002
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
DART Sets the Table for Celebration with Soul Food Cook-Off
News release about DART's annual "Soul Food Cook-Off."
Date:
January 29, 2002
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
Design of 57.5 MHz cw RFQ structure for the rare isotope accelerator facility.
The Rare Isotope Accelerator (RIA) facility includes a driver linac for production of 400 kW CW heavy-ion beams. The initial acceleration of heavy-ions delivered from an ECR ion source can be effectively performed by a 57.5 MHz four-meter long RFQ. The principal specifications of the RFQ are: (1) formation of extremely low longitudinal emittance; (2) stable operation over a wide range of voltage for acceleration of various ion species needed for RIA operation; (3) simultaneous acceleration of two-charge states of uranium ions. CW operation of an accelerating structure leads to a number of requirements for the resonators such as high shunt impedance, efficient water cooling of all parts of the resonant cavity, mechanical stability together with precise alignment, reliable rf contacts, a stable operating mode and fine tuning of the resonant frequency during operation. To satisfy these requirements a new resonant structure has been developed. This paper discusses beam dynamics and electrodynamics design of the RFQ cavity, as well as, some aspects of the mechanical design of this low-frequency CW RFQ.
Date:
January 29, 2002
Creator:
Ostroumov, P. N.; Kolomiets, A. A.; Kashinsky, D. A.; Minaev, S. A.; Pershin, V. I.; Yaramishev, S. G. et al.
Object Type:
Article
System:
The UNT Digital Library
Development of Direct and Optical Polarized Nuclear Magnetic Resonance (NMR) Methods for Characterization and Engineering of Mesophased Molecular Structures
The development of NMR methods for the characterization of structure and dynamics in mesophase composite systems was originally proposed in this LDRD. Mesophase systems are organic/inorganic hybrid materials whose size and motional properties span the definition of liquids and solids, such as highly viscous gels or colloidal suspensions. They are often composite, ill defined, macromolecular structures that prove difficult to characterize. Mesophase materials are of broad scientific and programmatic interest and include composite load bearing foams, aerogels, optical coatings, silicate oligomers, porous heterogeneous catalysts, and nanostructured materials such as semiconductor quantum dot superlattices. Since mesophased materials and precursors generally lack long-range order they have proven to be difficult to characterize beyond local, shortrange order. NMR methods are optimal for such a task since NMR observables are sensitive to wide ranges of length (0-30{angstrom}) and time (10{sup -9}-10{sup 0}sec) scales. We have developed a suit of NMR methods to measure local, intermediate, and long range structure in a series of mesophase systems and have constructed correlations between NMR observables and molecular size, topology, and network structure. The goal of this research was the development of a strong LLNL capability in the characterization of mesophased materials by NMR spectroscopy that will lead …
Date:
January 29, 2002
Creator:
Maxwell, R; Baumann, T & Taylor, B
Object Type:
Report
System:
The UNT Digital Library
Dislocation processes and deformation twinning in nanocrystalline Al.
Using a recently developed, massively parallel molecular-dynamics (MD) code for the simulation of polycrystal plasticity, we analyze for the case of nanocrystalline Al the complex interplay among various dislocation and grain-boundary processes during low-temperature deformation. A unique aspect of this work, arising from our ability to deform to rather large plastic strains and to consider a rather large grain size, is the observation of deformation under very high grain-boundary and dislocation densities, i.e., in a deformation regime where they compete on an equal footing. We are thus able to identify the intra- and intergranular dislocation and grain-boundary processes responsible for the extensive deformation twinning observed in our simulations. This illustrates the ability of this type of simulations to capture novel atomic-level insights into the underlying deformation mechanisms not presently possible experimentally. smaller grain size, mobile dislocations must be nucleated from other sources, such as the GBs or grain junctions.
Date:
January 29, 2002
Creator:
Yamakov, V.; Wolf, D.; Phillpot, S. R. & Gleiter, H.
Object Type:
Article
System:
The UNT Digital Library
Estate and Gift Tax Law: Changes Under the Economic Growth and Tax Relief Reconciliation Act of 2001
This report emphasizes the three distinct time phases under the economic growth and tax relief reconciliation act of 2001. The second section of the report describes major changes from prior law regarding estate and gift taxes.
Date:
January 29, 2002
Creator:
Noto, Nonna A.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Reservoir Wettability and its Effect on Oil Recovery
The objectives of this five-year project were: (1) to achieve improved understanding of the surface and interfacial properties of crude oils and their interactions with mineral surfaces, (2) to apply the results of surface studies to improve predictions of oil production from laboratory measurements, and (3) to use the results of this research to recommend ways to improve oil recovery by waterflooding.
Date:
January 29, 2002
Creator:
Buckley, Jill S.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, January 29, 2002
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 29, 2002
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fashioning A Tax Cut Trigger: Economic Issues
None
Date:
January 29, 2002
Creator:
Labonte, Marc
Object Type:
Report
System:
The UNT Digital Library
Final Report (OO-ERD-056) MEDIOS: Modeling Earth Deformation Using Interferometric Observations from Space
This final report summarizes the accomplishments of the 2-year LDRD-ER project ''MEDIOS: Modeling Earth Deformation using Interferometric Observations from Space'' (00-ERD-056) which began in FY00 and ended in FY01. The structure of this report consists of this summary part plus two separate journal papers, each having their own UCRL number, which document in more detail the major results in two (of three) major categories of this study. The two categories and their corresponding paper titles are (1) Seismic Hazard Mitigation (''Aseismic Creep Events along the Southern San Andreas Fault System''), and (2) Ground-based Nuclear Explosion Monitoring, or GNEM (''New Signatures of Underground Nuclear Tests Revealed by Satellite Radar Interferometry''). The third category is Energy Exploitation Applications and does not have a separate journal article associated with it but is described briefly. The purpose of this project was to develop a capability within the Geophysics and Global Security Division to process and analyze InSAR data for the purposes of constructing more accurate ground deformation source models relevant to Hazards, Energy, and NAI applications. Once this was accomplished, an inversion tool was to be created that could be applied to many different types (sources) of surface deformation so that accurate source parameters …
Date:
January 29, 2002
Creator:
Vincent, P.; Walter, B.; Zucca, J.; Larsen, S.; Goldstein, P.; Foxall, W. et al.
Object Type:
Report
System:
The UNT Digital Library
Heavy-ion linac development for the U.S. RIA project.
The Nuclear Science Community in the Unites States has unanimously concluded that developments in both nuclear science and its supporting technologies make building a world-leading Rare-Isotope Accelerator (RIA) facility for production of radioactive beams the top priority. The RIA development effort involves several US Laboratories (ANL, JLAB, LBNL, MSU, ORNL). The RIA Facility includes a CW 1.4 GeV driver linac and a 100 MV post-accelerator both based on superconducting (SC) cavities operating at frequencies from 48 MHz to 805 MHz. An initial acceleration in both linacs is provided by room temperature RFQs. The driver linac is designed for acceleration of any ion species; from protons up to 900 MeV to uranium up to 400 MeV/u. The novel feature of the driver linac is an acceleration of multiple charge-state heavy-ion beams in order to achieve 400 kW beam power. Basic design concepts of the driver linac are given. Several new conceptual solutions in beam dynamics, room temperature and SC accelerating structures for heavy ion accelerator applications are discussed.
Date:
January 29, 2002
Creator:
Ostroumov, P. N.
Object Type:
Article
System:
The UNT Digital Library
Large N matrix mechanics on the light-cone
None
Date:
January 29, 2002
Creator:
Halpern, M. B. & Thorn, Charles B.
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Variations in Thickness and Refractive Index of NIF Crystals
This report discusses one method of characterizing the variations in the physical thickness and refractive index of NIF doubler, tripler and switch crystals that are relatively thin ({approx}10mm thick). These particular measurements are difficult to perform with standard laser interferometers when the front and back substrate surfaces are near-parallel. A complicated interference pattern is formed from the interference of more than two beams due to the temporal coherence of the laser source. There are a number of methods that can be used to minimize this problem. They are referenced in a paper by Peter de Groot. In this report we discuss a method that eliminates the problem completely and show the results of measurements of two crystals.
Date:
January 29, 2002
Creator:
Sommargren, G E; Phillion, D W; Johnson, M A & Bradsher, L S
Object Type:
Report
System:
The UNT Digital Library
A Methodology to Integrate Magnetic Resonance and Acoustic Measurements for Reservoir Characterization
The objective of this project was to develop an advanced imaging method, including pore scale imaging, to integrate NMR techniques and acoustic measurements to improve predictability of the pay zone in hydrocarbon reservoirs. This is accomplished by extracting the fluid property parameters using NMR laboratory measurements and the elastic parameters of the rock matrix from acoustic measurements to create poroelastic models of different parts of the reservoir. Laboratory measurement techniques and core imaging are being linked with a balanced petrographical analysis of the core and theoretical model.
Date:
January 29, 2002
Creator:
Parra, Jorge O.; Hackert, Chris L.; Collier, Hughbert A. & Bennett, Michael
Object Type:
Report
System:
The UNT Digital Library
Modeling of Spherical Torus Plasmas for Liquid Lithium Wall Experiments
Liquid metal walls have the potential to solve first-wall problems for fusion reactors, such as heat load and erosion of dry walls, neutron damage and activation, and tritium inventory and breeding. In the near term, such walls can serve as the basis for schemes to stabilize magnetohydrodynamic (MHD) modes. Furthermore, the low recycling characteristics of lithium walls can be used for particle control. Liquid lithium experiments have already begun in the Current Drive eXperiment-Upgrade (CDX-U). Plasmas limited with a toroidally localized limiter have been investigated, and experiments with a fully toroidal lithium limiter are in progress. A liquid surface module (LSM) has been proposed for the National Spherical Torus Experiment (NSTX). In this larger ST, plasma currents are in excess of 1 MA and a typical discharge radius is about 68 cm. The primary motivation for the LSM is particle control, and options for mounting it on the horizontal midplane or in the divertor region are under consideration. A key consideration is the magnitude of the eddy currents at the location of a liquid lithium surface. During plasma start up and disruptions, the force due to such currents and the magnetic field can force a conducting liquid off of the …
Date:
January 29, 2002
Creator:
Kaita, R.; Jardin, S.; Jones, B.; Kessel, C.; Majeski, R.; Spaleta, J. et al.
Object Type:
Report
System:
The UNT Digital Library