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Altus Times (Altus, Okla.), Vol. 100, No. 247, Ed. 1 Monday, January 3, 2000
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 3, 2000
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 109, No. 1, Ed. 1 Monday, January 3, 2000
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 3, 2000
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
Apparatus and Method for Ultra-Sensitive trace Analysis
An apparatus and method for conducting ultra-sensitive trace element and isotope analysis. The apparatus injects a sample through a fine nozzle to form an atomic beam. A DC discharge is used to elevate select atoms to a metastable energy level. These atoms are then acted on by a laser oriented orthogonally to the beam path to reduce the traverse velocity and to decrease the divergence angle of the beam. The beam then enters a Zeeman slower where a counter-propagating laser beam acts to slow the atoms down. Then select atoms are captured in a magneto-optical trap where they undergo fluorescence. A portion of the scattered photons are imaged onto a photo-detector, and the results analyzed to detect the presence of single atoms of the specific trace elements.
Date:
January 3, 2000
Creator:
Lu, Zhengtian; Bailey, Kevin G.; Chen, Chun Yen; Li, Yimin; O'Connor, Thomas P. & Young, Linda
Object Type:
Patent
System:
The UNT Digital Library
Baseline avian use and behavior at the CARES wind plant site, Klickitat County, Washington
This report presents a literature review on avian-wind turbine interactions and the results of a one-year avian baseline study conducted in 1998 at the proposed Conservation and Renewable Energy System (CARES) wind development site in Klickitat County, Washington. Avian use of the site ranged from 1.11/survey in the winter to 5.69/survey in the spring. Average use by passerines in the study plots ranged from 1.15 minutes/survey in the winter to 40.98 minutes/survey in the spring. Raptors spent much less time within plots than other groups, ranging from 0.05 minutes/survey in the winter to 0.77 minutes/survey during the fall. Thirteen percent of all flying birds were within the rotor-swept height (25 to 75 m); 41.6% of all raptors were flying at this height. Raptors with the greatest potential turbine exposure are red-tailed hawks and golden eagles. Passerines with the highest turbine exposure are common ravens, American robins, and horned larks. Spatial use data for the site indicate that avian use tends to be concentrated near the rim, indicating that placing turbines away from the rim may reduce risk. Avian use data at the CARES site indicate that if a wind plant is constructed in the future, avian mortality would likely be …
Date:
January 3, 2000
Creator:
Erickson, W. P.; Johnson, G. D.; Strickland, M. D.; Kronner, K.; Becker, P. S. & Orloff, S.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 56, Ed. 1 Monday, January 3, 2000
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 3, 2000
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Color Superconductivity in Cold, Dense, Quark Matter.
We review what is different and what is similar in a color superconductor as compared to an ordinary BCS superconductor. The parametric dependence of the zero-temperature gap, {phi}{sub 0}, on the coupling constant differs in QCD from that in BCS theory. On the other hand, the transition temperature to the superconducting phase, T{sub c}, is related to the zero-temperature gap in the same way in QCD as in BCS theory, T{sub c}/{phi}{sub 0} {approx_equal} 0.567.
Date:
January 3, 2000
Creator:
Rischke, D. H. & Pisarski, R. D.
Object Type:
Article
System:
The UNT Digital Library
Comments on the geophysics paper -- Multiparameter l(1) norm waveform fitting: Interpretation of Gulf of Mexico reflection seismograms: by H. Djikpesse and A. Tarantola
In their recent paper, Djikpesse and Tarantola (Geophysics 65 (4) pp. 1023-1035, hereinafter D and T) raise a central question about geophysical inversion: how accurately must the physics of seismic waves in the Earth be modeled in order that inversion succeed? Two general criteria for successful inversion appear in D and T's discussion: fit of predicted to observed data, and prediction of Earth structure. The hypothesis underlying inversion is that these criteria are unextricably linked, so that data fit should lead to accurate inference of subsurface features. The authors have also worked on the data discussed in D and T, using different modeling choices and inversion algorithms but also achieving quite successful inversions, in both senses. They feel that a brief comparison of methods and results might highlight the subtle relation between accuracy in modeling and success in inversion as well as raising questions about the appropriateness of D and T's modeling and inversion choices.
Date:
January 3, 2000
Creator:
Minkoff, S.E. & Symes, W.W.
Object Type:
Article
System:
The UNT Digital Library
Controlling Dose to Low Z Solids at LCLS
Calculations of the dose suffered by the low Z solids, Li, Be, B, B{sub 4}C, BeO and C at various points along the LCLS beamline as a function of FEL photon energy are presented. Specific column densities of attenuator gases necessary to control the dose to C are calculated for assumed damage thresholds of 0.1 eV/atom and 0.01 eV/atom.
Date:
January 3, 2000
Creator:
Bionta, R. M.
Object Type:
Report
System:
The UNT Digital Library
CRADA No. BNL-C-97-10 between BNL and Cotton, Inc. Final abstract and final report [Final Report of Research carried out under DOE CRADA No. BNL-C-97-10 - "Prediction of Yield in Cotton"]
The objectives of this work were to determine if the numbér of fiber cell initials varied genetically and to compare the number of initials with that of mature fibers obtained at harvest time. The method used to count the number of fiber cell initials is direct, simple, quick and done while the plant is growing. In contrast, the currently used commercial process is indirect and needs large amount mature fibers gathered at harvest time. However, all current work on cotton yield is based on fiber numbers obtained by the indirect commercial process. Consequently, it was necessary to compare results obtained from the two methods using the same plants as the source of material. The results show that the number of fiber initials per ovule differed significantly (P>0.05) for seven cultivars in 1995 and 1996. AIso, a 1997 study shows the number of fiber initials varied by 15% over boll positions and environments, with rankings among cultivars generally consistent across boll positions and sampling times. Finally, although there were differences among cultivars for initial fiber cell number, all cultivars had nearly the same number of mature lint fibers per seed. This last finding is significant. It indicates that the rate of …
Date:
January 3, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Design of Dynamic Load-Balancing Tools for Parallel Applications
The design of general-purpose dynamic load-balancing tools for parallel applications is more challenging than the design of static partitioning tools. Both algorithmic and software engineering issues arise. The authors have addressed many of these issues in the design of the Zoltan dynamic load-balancing library. Zoltan has an object-oriented interface that makes it easy to use and provides separation between the application and the load-balancing algorithms. It contains a suite of dynamic load-balancing algorithms, including both geometric and graph-based algorithms. Its design makes it valuable both as a partitioning tool for a variety of applications and as a research test-bed for new algorithmic development. In this paper, the authors describe Zoltan's design and demonstrate its use in an unstructured-mesh finite element application.
Date:
January 3, 2000
Creator:
Devine, K. D.; Hendrickson, B. A.; Boman, E. G.; St. John, M. & Vaughan, C. T.
Object Type:
Article
System:
The UNT Digital Library
Development and In Situ Characterization of New Electrolyte and Electrode materials for Rechargeable Lithium Batteries
The object of this project is to develop new electrolyte and cathode materials for rechargeable lithium batteries, especially for lithium ion and lithium polymer batteries. Enhancing performance, reducing cost, and replacing toxic materials by environmentally benign materials, are strategic goals of DOE in lithium battery research. This proposed project will address these goals on two important material studies, namely the new electrolytes and new cathode materials. For the new electrolyte materials, aza based anion receptors as additives, organic lithium salts and plasticizers which have been developed by BNL team under Energy Research programs of DOE, will be evaluated by Gould for potential use in commercial battery cells. All of these three types of compounds are aimed to enhance the conductivity and lithium transference number of lithium battery electrolytes and reduce the use of toxic salts in these electrolytes. BNL group will be working closely with Gould to further develop these compounds for commercialization. For the cathode material studies, BNL efforts wi U be focused on developing new superior characterization methclds, especially in situ techniques utilize the unique user facility of DOE at BNL, namely the National Synchrotrons Light Source (NSLS). In situ x-ray absorption and x-ray diftlaction spectroscopy will be …
Date:
January 3, 2000
Creator:
Yang, X -Q; Xing, X K & Daroux, M
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, January 3, 2000
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 3, 2000
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fuel Retrieval System Process Flow Diagrams Mass Balance Calculations for K West Basin
This calculation justifies the numbers used for the material balance on the process flow diagrams for the KW Basin Fuel Retrieval Subproject. The purpose of these calculations is to develop the material balances that are documented in the Fuel Retrieval System (FRS) Process Flow Diagrams for future reference. The attached mass calculations were prepared in support of revising the fuel retrieval system process flow diagrams for the 105K West Basin. The calculations refer to diagram H-1-81164.
Date:
January 3, 2000
Creator:
REED, A.V.
Object Type:
Report
System:
The UNT Digital Library
GaN pnp bipolar junction transistors operated to 250 C
The authors report on the dc performance of the first GaN pnp bipolar junction transistor. The structure was grown by MOCVD on c-plane sapphire substrates and mesas formed by low damage Inductively Coupled Plasma etching with a Cl{sub 2}/Ar chemistry. The dc characteristics were measured up to V{sub BC} of 65 V in common base mode and at temperatures up to 250 C. Under all conditions, I{sub C} {approximately} I{sub E}, indicating higher emitter injection efficiency. The offset voltage was {le} 2 V and devices were operated up to power densities of 40kW{center{underscore}dot}cm{sup {minus}2}.
Date:
January 3, 2000
Creator:
Zhang, A. P.; Dang, G.; Ren, F.; Han, J.; Monier, C.; Baca, A. G. et al.
Object Type:
Article
System:
The UNT Digital Library
Ground truth measurements plan for the Multispectral Thermal Imager (MTI) satellite
Sandia National Laboratories (SNL), Los Alamos National Laboratory (LANL), and the Savannah River Technology Center (SRTC) have developed a diverse group of algorithms for processing and analyzing the data that will be collected by the Multispectral Thermal Imager (MTI) after launch late in 1999. Each of these algorithms must be verified by comparison to independent surface and atmospheric measurements. SRTC has selected 13 sites in the continental U.S. for ground truth data collections. These sites include a high altitude cold water target (Crater Lake), cooling lakes and towers in the warm, humid southeastern US, Department of Energy (DOE) climate research sites, the NASA Stennis satellite Validation and Verification (V and V) target array, waste sites at the Savannah River Site, mining sites in the Four Corners area and dry lake beds in the southwestern US. SRTC has established mutually beneficial relationships with the organizations that manage these sites to make use of their operating and research data and to install additional instrumentation needed for MTI algorithm V and V.
Date:
January 3, 2000
Creator:
Garrett, A.J.
Object Type:
Report
System:
The UNT Digital Library
Hall-Petch hardening in pulsed laser deposited nickel and copper thin films
Very fine-grained Ni and Cu films were formed using pulsed laser deposition on fused silica substrates. The grain sizes in the films were characterized by electron microscopy, and the mechanical properties were determined by ultra-low load indentation, with finite-element modeling used to separate the properties of the layers from those of the substrate. Some Ni films were also examined after annealing to 350 and 450 C to enlarge the grain sizes. These preliminary results show that the observed hardnesses are consistent with a simple extension of the Hall-Petch relationship to grain sizes as small as 11 nm for Ni and 32 nm for Cu.
Date:
January 3, 2000
Creator:
Knapp, J.A.; Follstaedt, D.M.; Banks, J.C. & Myers, S.M. Jr.
Object Type:
Article
System:
The UNT Digital Library
A low-cost approach to fabrication of multinary compounds for energy-related applications
Non-vacuum electrodeposition and electroless deposition techniques with a potential to prepare large-area uniform precursor films using low-cost source materials and low-cost capital equipment are very attractive for the growth of compound materials for superconductors and photovoltaic applications. In the first part, a low-cost electrodeposition (ED) method will be discussed for fabrication of high-temperature Tl-oxide-based superconductors. In the second part, electrodeposition and electroless deposition of semiconductor Cu-In-Ga-Se thin films will be discussed.
Date:
January 3, 2000
Creator:
Bhattacharya, R.N. & Deb, S.K.
Object Type:
Article
System:
The UNT Digital Library
Magnetohydodynamics stability of compact stellarators
Recent stability results of external kink modes and vertical modes in compact stellarators are presented. The vertical mode is found to be stabilized by externally generated poloidal flux. A simple stability criterion is derived in the limit of large aspect ratio and constant current density. For a wall at infinite distance from the plasma, the amount of external flux needed for stabilization is given by Fi = (k2 {minus} k)=(k2 + 1), where k is the axisymmetric elongation and Fi is the fraction of the external rotational transform. A systematic parameter study shows that the external kink mode in QAS can be stabilized at high beta ({approximately} 5%) without a conducting wall by magnetic shear via 3D shaping. It is found that external kinks are driven by both parallel current and pressure gradient. The pressure contributes significantly to the overall drive through the curvature term and the Pfirsch-Schluter current.
Date:
January 3, 2000
Creator:
Fu, G. Y.; Ku, L. P.; Cooper, W. A. & Hirshman, S. H.
Object Type:
Report
System:
The UNT Digital Library
NATO Burdensharing and Kosovo: A Preliminary Report
None
Date:
January 3, 2000
Creator:
Ek, Carl
Object Type:
Report
System:
The UNT Digital Library
Non-Perturbative Gluodynamics of High Energy Heavy-Ion Collisions
The dynamics of low-x partons in the transverse plane of a high-energy nuclear collision is classical, and therefore admits a fully non-perturbative numerical treatment. The authors report results of a recent study estimating the initial energy density in the central region of a collision. Preliminary estimates of the number of gluons per unit rapidity, and the initial transverse momentum distribution of gluons, are also provided.
Date:
January 3, 2000
Creator:
Krasnitz, A. & Venugopalan, R.
Object Type:
Article
System:
The UNT Digital Library
Office of River Protection, plan for Developing Hanford Tank Waste Processing Alternatives, Revision 1, December 15, 1999
In August 2000, The Department of Energy (DOE) must decide whether to authorize BNFL Inc. (BNFL) to construct and operate tank waste processing facilities as proposed or to take another path. This will be a multi-billion dollar commitment, requiring that the best path forward be chosen. The plan for reaching this decision is described in reference 1. The alternative evaluations in this plan are directed toward acquiring information needed for the August 2000 decision and for preparing an alternate path plan, should an acceptable agreement with BNFL not be reached. Many of the alternatives considered may still be applicable for failures that could occur after the year 2000, however, depending on the cause of later failures, others alternatives may need to be developed.
Date:
January 3, 2000
Creator:
Wodrich, D. D.
Object Type:
Report
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 107, No. 1, Ed. 1 Monday, January 3, 2000
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 3, 2000
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
PLC/DTAM Software Programs for Pumping Instrumentation and Control Skid L
This document describes the software programs for the Programmable Logic Controller and the Data Table Access Module for Pumping Instrumentation and Control skid ''L''. The Appendices contains copies of the printouts of these software programs.
Date:
January 3, 2000
Creator:
Koch, M. R.
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 95, Ed. 1 Monday, January 3, 2000
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 3, 2000
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History