Degree Department

Degree Discipline

Degree Level

33 Matching Results

Results open in a new window/tab.

Advantages of High Order Schemes and How to Confirm These Advantages (open access)

Advantages of High Order Schemes and How to Confirm These Advantages

This manuscript is meant to give a short summary of the advantages of high order schemes and suitable test problems which can properly illustrate these advantages.
Date: November 26, 2001
Creator: Jameson, L
Object Type: Report
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 102, No. 230, Ed. 1 Monday, November 26, 2001 (open access)

Altus Times (Altus, Okla.), Vol. 102, No. 230, Ed. 1 Monday, November 26, 2001

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: November 26, 2001
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 110, No. 96, Ed. 1 Monday, November 26, 2001 (open access)

The Alvin Sun (Alvin, Tex.), Vol. 110, No. 96, Ed. 1 Monday, November 26, 2001

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: November 26, 2001
Creator: Schwind, Jim & Holton, Kathleen
Object Type: Newspaper
System: The Portal to Texas History
Application of the Scenario Planning Process - a Case Study: The Technical Information Department at the Lawrence Livermore National Laboratory (open access)

Application of the Scenario Planning Process - a Case Study: The Technical Information Department at the Lawrence Livermore National Laboratory

When the field of modern publishing was on a collision course with telecommunications, publishing organizations had to come up to speed in fields that were, heretofore, completely foreign and technologically forbidding to them. For generations, the technology of publishing centered on offset lithography, typesetting, and photography--fields that saw evolutionary and incremental change from the time of Guttenberg. But publishing now includes making information available over the World Wide Web--Internet publishing--with its ever-accelerating rate of technological change and dependence on computers and networks. Clearly, we need a methodology to help anyone in the field of Internet publishing plan for the future, and there is a well-known, well-tested technique for just this purpose--Scenario Planning. Scenario Planning is an excellent tool to help organizations make better decisions in the present based on what they identify as possible and plausible scenarios of the future. Never was decision making more difficult or more crucial than during the years of this study, 1996-1999. This thesis takes the position that, by applying Scenario Planning, the Technical Information Department at LLNL, a large government laboratory (and organizations similar to it), could be confident that moving into the telecommunications business of Internet publishing stood a very good chance of …
Date: November 26, 2001
Creator: Schuster, J A
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 365, Ed. 1 Monday, November 26, 2001 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 79, No. 365, Ed. 1 Monday, November 26, 2001

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: November 26, 2001
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
The Bbar ---> D* l nu bar form factor at zero recoil and the determination of |V{sub cb}| (open access)

The Bbar ---> D* l nu bar form factor at zero recoil and the determination of |V{sub cb}|

We summarize our lattice QCD study of the form factor at zero recoil in the decay {bar B} {yields} D*{ell}{bar {nu}}. After careful consideration of all sources of systematic uncertainty, we find, h{sub A{sub 1}}(1) = 0.913{sub -17-30}{sup +24+17}, where the first uncertainty is from statistics and fitting while the second combined uncertainty is from all other systematic effects.
Date: November 26, 2001
Creator: al., J.N. Simone et
Object Type: Article
System: The UNT Digital Library
Biomedical Research: HHS Direction Needed to Address Financial Conflicts of Interest (open access)

Biomedical Research: HHS Direction Needed to Address Financial Conflicts of Interest

A letter report issued by the General Accounting Office with an abstract that begins "Financial relationships between individual investigators or their research institutions and private industry have yielded significant results, including treatments for such diseases as AIDS and strokes. However, some collaborations have raised concerns that the focus on financial reward might compromise the integrity of the research and the safety of human research subjects. GAO reviewed five universities with broad policies and procedures on financial conflicts of interest. All five had difficulty providing basic data on individual investigators' financial conflicts of interest in clinical research involving human subjects. The universities acknowledged a need for better coordination of information on investigators' financial relationships, and several universities were developing ways to do so. Policies and procedures at the five universities addressed financial conflicts of interest affecting institutions, including technology transfer activities and financial relationships with small start-up companies that market products developed by the universities. The Department of Health and Human Services has had limited success in promoting the integrity of biomedical research and protecting human subjects. HHS has taken steps to improve its oversight and monitoring and has drafted guidance on financial conflicts of interest, but this guidance does not …
Date: November 26, 2001
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Daily Journal (Perry, Okla.), Vol. 108, No. 231, Ed. 1 Monday, November 26, 2001 (open access)

Daily Journal (Perry, Okla.), Vol. 108, No. 231, Ed. 1 Monday, November 26, 2001

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: November 26, 2001
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History

Doctoral Recital: 2001-11-26 – Todd M. Gentzel, saxophone

Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: November 26, 2001
Creator: Gentzel, Todd M.
Object Type: Sound
System: The UNT Digital Library
Edge Turbulence Imaging in the Alcator C-Mod Tokamak (open access)

Edge Turbulence Imaging in the Alcator C-Mod Tokamak

The 2-D radial vs. poloidal structure of edge turbulence in the Alcator C-Mod tokamak [I.H. Hutchinson, R. Boivin, P.T. Bonoli et al., Nuclear Fusion 41(2001) 1391] was measured using fast cameras and compared with 3-D numerical simulations of edge plasma turbulence. The main diagnostic is Gas Puff Imaging (GPI), in which the visible D(subscript alpha) emission from a localized D(subscript 2) gas puff is viewed along a local magnetic field line. The observed D(subscript alpha) fluctuations have a typical radial and poloidal scale of approximately 1 cm, and often have strong local maxima (''blobs'') in the scrape-off layer. The motion of this 2-D structure motion has also been measured using an ultra-fast framing camera with 12 frames taken at 250,000 frames/sec. Numerical simulations produce turbulent structures with roughly similar spatial and temporal scales and transport levels as that observed in the experiment; however, some differences are also noted, perhaps requiring diagnostic improvement and/or additional physics in the numerical model.
Date: November 26, 2001
Creator: Zweben, S. J.; Stotler, D. P.; Terry, J. L.; LaBombard, B.; Greenwald, M.; Muterspaugh, M. et al.
Object Type: Report
System: The UNT Digital Library
An Electronic Logbook for the HEP Control Room (open access)

An Electronic Logbook for the HEP Control Room

The Control Room Logbook (CRL) is designed to improve and replace the paper logbooks traditionally used in the HEP accelerator control room. Its features benefit the on-line coordinator, the shift operators, and the remote observers. This paper explains some of the most attractive features for each of these roles. The features include the ability to configure the logbook for the specific needs of a collaboration, a large variety of entry types an operator can add by simply clicking and dragging, and a flexible web interface for the remote observer to keep up with control room activities. The entries are saved as UTF-8 based XML files, which allowed us to give the data structure and meaning such that it can easily be parsed in the present and far into the future. The XML tag data is also indexed in a relational database, making queries on dates, keywords, entry type and other criteria feasible and fast. The CRL is used in the D0 control room. This presentation also discusses our experience with deployment, platform independence and other interesting issues that arose with the installation and use of the logbook.
Date: November 26, 2001
Creator: al., Gary Roediger et
Object Type: Article
System: The UNT Digital Library
Environmental Considerations in the Studies of Corrosion Resistant Alloys for High-Level Radioactive Waste Containment (open access)

Environmental Considerations in the Studies of Corrosion Resistant Alloys for High-Level Radioactive Waste Containment

The corrosion resistance of Alloy 22 (UNS No.: N06022) was studied in simulated ground water of different pH values and ionic contents at various temperatures. Potentiodynamic polarization techniques were used to study the electrochemical behavior and measure the critical potentials in the various systems. Alloy 22 was found to be resistant to localized corrosion in the simulated ground waters tested.
Date: November 26, 2001
Creator: Ilevbare, G O; Lian, T & Farmer, J C
Object Type: Article
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, November 26, 2001 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Monday, November 26, 2001

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: November 26, 2001
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
FRACTURED RESERVOIR E&P IN ROCKY MOUNTAIN BASINS: A 3-D RTM MODELING APPROACH (open access)

FRACTURED RESERVOIR E&P IN ROCKY MOUNTAIN BASINS: A 3-D RTM MODELING APPROACH

Key natural gas reserves in Rocky Mountain and other U.S. basins are in reservoirs with economic producibility due to natural fractures. In this project, we evaluate a unique technology for predicting fractured reservoir location and characteristics ahead of drilling based on a 3-D basin/field simulator, Basin RTM. Recommendations are made for making Basin RTM a key element of a practical E&P strategy. A myriad of reaction, transport, and mechanical (RTM) processes underlie the creation, cementation and preservation of fractured reservoirs. These processes are often so strongly coupled that they cannot be understood individually. Furthermore, sedimentary nonuniformity, overall tectonics and basement heat flux histories make a basin a fundamentally 3-D object. Basin RTM is the only 3-D, comprehensive, fully coupled RTM basin simulator available for the exploration of fractured reservoirs. Results of Basin RTM simulations are presented, that demonstrate its capabilities and limitations. Furthermore, it is shown how Basin RTM is a basis for a revolutionary automated methodology for simultaneously using a range of remote and other basin datasets to locate reservoirs and to assess risk. Characteristics predicted by our model include reserves and composition, matrix and fracture permeability, reservoir rock strength, porosity, in situ stress and the statistics of fracture …
Date: November 26, 2001
Creator: Ortoleva, P.; Comer, J.; Park, A.; Payne, D.; Sibo, W. & Tuncay, K.
Object Type: Report
System: The UNT Digital Library
[Funeral Program for Olivia Brown Thompson, November 26, 2001] (open access)

[Funeral Program for Olivia Brown Thompson, November 26, 2001]

Funeral program for Olivia Brown Thompson, born May 16, 1921 and died November 22, 2001. The funeral was held November 26, 2001 at Mt. Zion First Baptist Church, officiated by Rev. Kenneth A. Allen. Funeral arrangements were made through Carter-Taylor-Williams Mortuary, and she was buried in Fort Sam Houston National Cemetery near San Antonio, Texas.
Date: November 26, 2001
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History
Hazardous Gas Production by Alpha Particles (open access)

Hazardous Gas Production by Alpha Particles

This project focused on the production of hazardous gases in the radiolysis of solid organic matrices, such as polymers and resins, that may be associated with transuranic waste material. Self-radiolysis of radioactive waste is a serious environmental problem because it can lead to a change in the composition of the materials in storage containers and possibly jeopardize their integrity. Experimental determination of gaseous yields is of immediate practical importance in the engineering and maintenance of containers for waste materials. Fundamental knowledge on the radiation chemical processes occurring in these systems allows one to predict outcomes in materials or mixtures not specifically examined, which is a great aid in the management of the variety of waste materials currently overseen by Environmental Management.
Date: November 26, 2001
Creator: Jay A. LaVerne, Principal Investigator
Object Type: Report
System: The UNT Digital Library
Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques (open access)

Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques

The project's primary objective was to enhance domestic petroleum production by demonstration and transfer of horizontal drilling technology in the Paradox Basin, Utah, Colorado, Arizona, and New Mexico. If this project can demonstrate technical and economic feasibility, then the technique can be applied to approximately 100 additional small fields in the Paradox Basin alone, and result in increased recovery of 25 to 50 million barrels (4-8 million m3) of oil. This project was designed to characterize several shallow-shelf carbonate reservoirs in the Pennsylvanian (Desmoinesian) Paradox Formation, choose the best candidate(s) for a pilot demonstration project to drill horizontally from existing vertical wells, monitor well performance(s), and report associated validation activities.
Date: November 26, 2001
Creator: Chidsey, Thomas C., Jr.; Eby, David E. & Wray, Laural L.
Object Type: Report
System: The UNT Digital Library
High Order Numerical Methods for the Investigation of the Two Dimensional Richtmyer-Meshkov Instability (open access)

High Order Numerical Methods for the Investigation of the Two Dimensional Richtmyer-Meshkov Instability

For flows that contain significant structure, high order schemes offer large advantages over low order schemes. Fundamentally, the reason comes from the truncation error of the differencing operators. If one examines carefully the expression for the truncation error, one will see that for a fixed computational cost that the error can be made much smaller by increasing the numerical order than by increasing the number of grid points. One can readily derive the following expression which holds for systems dominated by hyperbolic effects and advanced explicitly in time: flops = const * p{sup 2} * k{sup (d+1)(p+1)/p}/E{sup (d+1)/p} where flops denotes floating point operations, p denotes numerical order, d denotes spatial dimension, where E denotes the truncation error of the difference operator, and where k denotes the Fourier wavenumber. For flows that contain structure, such as turbulent flows or any calculation where, say, vortices are present, there will be significant energy in the high values of k. Thus, one can see that the rate of growth of the flops is very different for different values of p. Further, the constant in front of the expression is also very different. With a low order scheme, one quickly reaches the limit of …
Date: November 26, 2001
Creator: Don, Wai-Sun; Gottlieb, David; Shu, Chi-Wang & Jameson, Leland
Object Type: Report
System: The UNT Digital Library
A measurement of the branching ratio of K+-- ->pi+--mu+mu- decays in the Hyper CP experiment (open access)

A measurement of the branching ratio of K+-- ->pi+--mu+mu- decays in the Hyper CP experiment

Large samples of hyperon and kaon decays were collected with the Hyper CP spectrometer during two fixed-target runs at Fermilab. Based on an analysis of 110 million K pm decays from the 1997 data sample we present a branching ratio for K pm right arrow pi pm mu+ mu-. This is the first observation of K- right arrow pi- mu+ mu- decay.
Date: November 26, 2001
Creator: Zyla, Piotr & Collaborators, other HyperCP
Object Type: Article
System: The UNT Digital Library
Neutrino factory and muon collider R and D (open access)

Neutrino factory and muon collider R and D

European, Japanese, and US Neutrino Factory designs are presented. The main R&D issues and associated R&D programs, future prospects, and the additional issues that must be addressed to produce a viable Muon Collider design, are discussed.
Date: November 26, 2001
Creator: Geer, Steve
Object Type: Article
System: The UNT Digital Library
[News Clip: AOL executive missing] captions transcript

[News Clip: AOL executive missing]

B-roll video footage from the KXAS-TV/NBC 5 television station in Fort Worth, Texas, covering a news story.
Date: November 26, 2001, 4:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 85, No. 65, Ed. 1 Monday, November 26, 2001 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 85, No. 65, Ed. 1 Monday, November 26, 2001

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: November 26, 2001
Creator: Johnson, Jennifer
Object Type: Newspaper
System: The Gateway to Oklahoma History
Optical Parametric Amplification for High Peak and Average Power (open access)

Optical Parametric Amplification for High Peak and Average Power

Optical parametric amplification is an established broadband amplification technology based on a second-order nonlinear process of difference-frequency generation (DFG). When used in chirped pulse amplification (CPA), the technology has been termed optical parametric chirped pulse amplification (OPCPA). OPCPA holds a potential for producing unprecedented levels of peak and average power in optical pulses through its scalable ultrashort pulse amplification capability and the absence of quantum defect, respectively. The theory of three-wave parametric interactions is presented, followed by a description of the numerical model developed for nanosecond pulses. Spectral, temperature and angular characteristics of OPCPA are calculated, with an estimate of pulse contrast. An OPCPA system centered at 1054 nm, based on a commercial tabletop Q-switched pump laser, was developed as the front end for a large Nd-glass petawatt-class short-pulse laser. The system does not utilize electro-optic modulators or multi-pass amplification. The obtained overall 6% efficiency is the highest to date in OPCPA that uses a tabletop commercial pump laser. The first compression of pulses amplified in highly nondegenerate OPCPA is reported, with the obtained pulse width of 60 fs. This represents the shortest pulse to date produced in OPCPA. Optical parametric amplification in {beta}-barium borate was combined with laser amplification …
Date: November 26, 2001
Creator: Jovanovic, I
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Oral History Interview with Horace Chilton Cook, November 26, 2001 transcript

Oral History Interview with Horace Chilton Cook, November 26, 2001

The National Museum of the Pacific War presents an oral interview with Horace H. Cook. Cook was born in San Antonio, Texas 12 February 1918 and graduated from Texas A & I University in Kingsville in 1939. Drafted into the US Army in July 1942 he was sent to Camp Barkley, Texas where he trained as a medic for five weeks before being assigned to the Medical Training Replacement Center located there. He recalls that, while there, he worked with Lew Ayers a noted radio and movie personality. In 1943 he was sent to Ohio State University for nine months of Spanish language training. In 1944 he was assigned to the Signal Corps and trained as a telephone lineman for seven months. Upon completion of the training he went to Camp Crowder, Missouri where he became a company clerk. He then became an administrative assistant in Philadelphia until his discharge 6 January 1946.
Date: November 26, 2001
Creator: Cook, Horace Chilton
Object Type: Sound
System: The Portal to Texas History