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Year
Month
Day
Language
The Oklahoma Daily (Norman, Okla.), Vol. 84, No. 63, Ed. 1 Wednesday, November 15, 2000
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 15, 2000
Creator:
McFall, Amy
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Opportunities for Small Biomass Power Systems. Final Technical Report
The purpose of this study was to provide information to key stakeholders and the general public about biomass resource potential for power generation. Ten types of biomass were identified and evaluated. The quantities available for power generation were estimated separately for five U.S. regions and Canada. A method entitled ''competitive resource profile'' was used to rank resources based on economics, utilization, and environmental impact. The results of the analysis may be used to set priorities for utilization of biomass in each U.S. region. A review of current biomass conversion technologies was accomplished, linking technologies to resources.
Date:
November 15, 2000
Creator:
Schmidt, D. D. & Pinapati, V. S.
Object Type:
Report
System:
The UNT Digital Library
Optical and EUV light curves of dwarf nova outbursts
We combine AAVSO and VSS/RASNZ optical and Extreme Ultraviolet Explorer EUV light curves of dwarf novae in outburst to place constraints on the nature of dwarf nova outbursts. From the observed optical-EUV time delays of {approx} 0.75-1.5 days, we show that the propagation velocity of the dwarf nova instability heating wave is {approx} 3 km s{sup -1}.
Date:
November 15, 2000
Creator:
Mauche, C W; Mattei, J A & Bateson, F M
Object Type:
Article
System:
The UNT Digital Library
The Optimist (Abilene, Tex.), Vol. 89, No. 23, Ed. 1, Wednesday, November 15, 2000
Tri-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
November 15, 2000
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Origins of Total-Dose Response Variability in Linear Bipolar Microcircuits
LM1ll voltage comparators exhibit a wide range of total-dose-induced degradation. Simulations show this variability may be a natural consequence of the low base doping of the substrate PNP (SPNP) input transistors. Low base doping increases the SPNP's collector to base breakdown voltage, current gain, and sensitivity to small fluctuations in the radiation-induced oxide defect densities. The build-up of oxide trapped charge (N{sub ot}) and interface traps (N{sub it}) is shown to be a function of pre-irradiation bakes. Experimental data indicate that, despite its structural similarities to the LM111, irradiated input transistors of the LM124 operational amplifier do not exhibit the same sensitivity to variations in pre-irradiation thermal cycles. Further disparities in LM111 and LM124 responses may result from a difference in the oxide defect build-up in the two part types. Variations in processing, packaging, and circuit effects are suggested as potential explanations.
Date:
November 15, 2000
Creator:
Barnaby, H. J.; Cirba, C. R.; Schrimpf, R. D.; Fleetwood, D. M.; Pease, R. L.; Shaneyfelt, M. R. et al.
Object Type:
Article
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 127, No. 92, Ed. 1 Wednesday, November 15, 2000
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
November 15, 2000
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 90, No. 92, Ed. 1 Wednesday, November 15, 2000
Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 15, 2000
Creator:
Gann, Sherry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Penny Record (Bridge City, Tex.), Vol. 41, No. 21, Ed. 1 Wednesday, November 15, 2000
Weekly newspaper from Bridge City, Texas that includes local, state, and national news along with advertising.
Date:
November 15, 2000
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Performance Assessment Monitoring Plan for the Hanford Site Low Level Waste Burial Grounds
As directed by the U.S. Department of Energy (DOE), Richland Operations Office (DOE-RL), Fluor Hanford, Inc. will implement the requirements of DOE Order 435.1, Radioactive Waste Management, as the requirements relate to the continued operation of the low-level waste disposal facilities on the Hanford Site. DOE Order 435.1 requires a disposal authorization statement authorizing operation (or continued operation) of a low-level waste disposal facility. The objective of this Order is to ensure that all DOE radioactive waste is managed in a manner that protects the environment and personnel and public health and safety. The manual (DOE Order 435.1 Manual) implementing the Order states that a disposal authorization statement shall be issued based on a review of the facility's performance assessment and composite analysis or appropriate Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) of 1980 documentation. The disposal authorization shall specify the limits and conditions on construction, design, operations, and closure of the low-level waste facility. Failure to obtain a disposal authorization statement shall result in shutdown of an operational disposal facility. In fulfillment of the requirements of DOE Order 435.1, a disposal authorization statement was issued on October 25, 1999, authorizing the Hanford Site to transfer, receive, possess, and …
Date:
November 15, 2000
Creator:
SONNICHSEN, J.C.
Object Type:
Report
System:
The UNT Digital Library
Performance of a Treatment Loop for Recycling Spent Rinse Waters
This paper summarizes an evaluation of a treatment loop designed to upgrade the quality of spent rinse waters discharged from 10 wet benches located in the fab at Sandia's Microelectronics Development Laboratory (MDL). The goal of the treatment loop is to make these waters, presently being discharged to the fab's acid waste neutralization (AWN) station, suitable for recycling as feed water back into the fab's ultrapure water (UPW) plant. The MDL typically operates 2 shifts per day, 5 days per week. Without any treatment, the properties of the spent rinse waters now being collected have been shown to be compatible with recycling about 30% (50/168) of the time (weekends primarily, when the fab is idling) which corresponds to about 12% of the present water discharged from the fab to the AWN. The primary goal of adding a treatment loop is to increase the percentage of recyclable water from these 10 wet benches to near 100%, increasing the percentage of total recyclable water to near 40% of the total present fab discharge to the AWN. A second goal is to demonstrate compatibility with recycling this treated spent rinse water to the present R/O product water tank, reducing both the present volume …
Date:
November 15, 2000
Creator:
Donovan, Robert Patrick; Timon, Robert P.; DeBusk, Michael John; Jones, Ronald V. & Rogers, Darell M.
Object Type:
Article
System:
The UNT Digital Library
Practical superconductor development for electric power applications.
None
Date:
November 15, 2000
Creator:
Balachandran, U.
Object Type:
Report
System:
The UNT Digital Library
Processing of High Level Waste: Spectroscopic Characterization of Redox Reactions in Supercritical Water - Final Report
Current efforts are focused on the oxidative dissolution of chromium compounds found in Hanford tank waste sludge. Samples of chromium oxides and hydroxides with varying degrees of hydration are being characterized using Raman, FTIR, and XPS spectroscopic techniques. Kinetics of oxidation reactions at subcritical and supercritical temperatures are being followed by Raman spectroscopy using a high temperature stainless steel cell with diamond windows. In these reactions both hydrogen peroxide and nitrate anions are used as the oxidizing species with Cr(III) compounds and organic compounds as reducing agents.
Date:
November 15, 2000
Creator:
Arrington, C. A., Jr.
Object Type:
Report
System:
The UNT Digital Library
The Rambler (Fort Worth, Tex.), Vol. 84, No. 12, Ed. 1 Wednesday, November 15, 2000
Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date:
November 15, 2000
Creator:
Wright, Shelly
Object Type:
Newspaper
System:
The Portal to Texas History
Recent electroweak results from {nu} - N scattering at NuTeV
None
Date:
November 15, 2000
Creator:
Yu, Jaehoon
Object Type:
Article
System:
The UNT Digital Library
Recent Progress in MHD Stability Calculations of Compact Stellarators
A key issue for compact stellarators is the stability of beta-limiting MHD modes, such as external kink modes driven by bootstrap current and pressure gradient. We report here recent progress in MHD stability studies for low-aspect-ratio Quasi-Axisymmetric Stellarators (QAS) and Quasi-Omnigeneous Stellarators (QOS). We find that the N = 0 periodicity-preserving vertical mode is significantly more stable in stellarators than in tokamaks because of the externally generated rotational transform. It is shown that both low-n external kink modes and high-n ballooning modes can be stabilized at high beta by appropriate 3D shaping without a conducting wall. The stabilization mechanism for external kink modes in QAS appears to be an enhancement of local magnetic shear due to 3D shaping. The stabilization of ballooning mode in QOS is related to a shortening of the normal curvature connection length.
Date:
November 15, 2000
Creator:
Fu, G. Y.; Ku, L. P.; Redi, M. H.; Kessel, C.; Monticello, D. A.; Reiman, A. et al.
Object Type:
Article
System:
The UNT Digital Library
The role of the multi buffer layer technique on the structural quality of GaN
None
Date:
November 15, 2000
Creator:
Benamara, Mourad; Liliental-Weber, Z.; Mazur, J.H.; Swider, W.; Washburn, J.; Iwaya, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Role of Zonal Flow in Turbulent Transport Scaling
Transport scalings with respect to collisionality (n*) and device size (r*) are obtained from massively parallel gyrokinetic particle simulations of toroidal ion-temperature-gradient (ITG) turbulence in the presence of zonal flows. Simulation results show that ion thermal transport from electrostatic ITG turbulence depends on ion-ion collisions due to the neo-classical damping of self-generated EXB zonal flows that regulate the turbulence. Fluctuations and heat transport levels exhibit bursting behavior with a period corresponding to the collisional damping time of poloidal flows. Results from large-scale full torus simulations with device-size scans for realistic parameters show that Bohm-like transport can be driven by microscopic scale fluctuations in the ITG turbulence with isotropic spectra. These simulation results resolve some apparent physics contradictions between experimental observations and turbulent transport theories.
Date:
November 15, 2000
Creator:
Lin, Z.; Hahm, T. S.; Krommes, J. A.; Lee, W. W.; Lewandowski, J.; Mynick, H. et al.
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 85, No. 363, Ed. 1 Wednesday, November 15, 2000
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 15, 2000
Creator:
Quinnelly, Lorrie J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Science and technology of ultrananocrystalline diamond (UNCD) thin films for multifunctional devices.
MEMS devices are currently fabricated primarily in silicon because of the available surface machining technology. However, Si has poor mechanical and tribological properties, and practical MEMS devices are currently limited primarily to applications involving only bending and flexural motion, such as cantilever accelerometers and vibration sensors, However, because of the poor flexural strength and fracture toughness of Si, and the tendency of Si to adhere to hydrophyllic surfaces, even these simple devices have limited dynamic range. Future MEMS applications that involve significant rolling or sliding contact will require the use of new materials with significantly improved mechanical and tribological properties, and the ability to perform well in harsh environments. Diamond is a superhard material of high mechanical strength, exceptional chemical inertness, and outstanding thermal stability. The brittle fracture strength is 23 times that of Si, and the projected wear life of diamond MEMS moving mechanical assemblies (MEMS-MMAS) is 10,000 times greater than that of Si MMAs. However, as the hardest known material, diamond is notoriously difficult to fabricate. Conventional CVD thin film deposition methods offer an approach to the fabrication of ultra-small diamond structures, but the films have large grain size, high internal stress, poor intergranular adhesion, and very rough …
Date:
November 15, 2000
Creator:
Auciello, O.; Gruen, D. M.; Krauss, A. R.; Jayatissa, A.; Sumant, A.; Tucek, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Seminole Sentinel (Seminole, Tex.), Vol. 94, No. 9, Ed. 1 Wednesday, November 15, 2000
Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with advertising.
Date:
November 15, 2000
Creator:
Dow, M. Gene & Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Stress Engineering During Metalorganic Chemical Vapor Deposition of AlGaN/GaN Distributed Bragg Reflectors
None
Date:
November 15, 2000
Creator:
Waldrip, Karen; Han, Jung; Figiel, Jeffrey J.; Zhou, H. & Nurmikko, A. V.
Object Type:
Article
System:
The UNT Digital Library
Synthesis and Characterization of Sn-Coated SFG10 Graphites as Negative Electrodes in Li-Ion Cells
None
Date:
November 15, 2000
Creator:
VEERARAGHAVAN,B.; DURAIRAJAN,A.; WHITE,R.E.; POPOV,B.N. & GUIDOTTI,RONALD A.
Object Type:
Article
System:
The UNT Digital Library
Thermal fatigue due to beam interruptions in a Lead-Bismuth cooled ATW blanket
Thermal fatigue consequences of frequent accelerator beam interruptions are quantified for both sodium and lead-bismuth cooled blankets in current designs for accelerator transmutation of waste devices. Temperature response was calculated using the SASSYS-1 systems analysis code for an immediate drop in beam current from full power to zero. Coolant temperatures from SASSYS-1 were fed into a multi-node structure temperature calculation to obtain thermal strains for various structural components. Fatigue curves from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code were used to determine the number of cycles that these components could endure, based on these thermal strains. Beam interruption frequency data from a current accelerator were used to estimate design lifetimes for components. Mitigation options for reducing thermal fatigue are discussed.
Date:
November 15, 2000
Creator:
Dunn, F.
Object Type:
Article
System:
The UNT Digital Library
Two-colour QCD at finite fundamental quark-number density and related theories
We are simulating SU(2) Yang-Mills theory with four flavours of dynamical quarks in the fundamental representation of SU(2) colour at finite chemical potential, p for quark number, as a model for QCD at finite baryon number density. In particular we observe that for p large enough this theory undergoes a phase transition to a state with a diquark condensate which breaks quark-number symmetry. In this phase we examine the spectrum of light scalar and pseudoscalar bosons and see evidence for the Goldstone boson associated with this spontaneous symmetry breaking. This theory is closely related to QCD at finite chemical potential for isospin, a theory which we are now studying for SU(3) colour.
Date:
November 15, 2000
Creator:
Hands, S. J.; Kogut, J. B.; Morrison, S. E. & Sinclair, D. K.
Object Type:
Article
System:
The UNT Digital Library