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The Gilmer Mirror (Gilmer, Tex.), Vol. 122, No. 5, Ed. 1 Saturday, January 16, 1999
Semiweekly newspaper from Gilmer, Texas that includes local, state, and national news along with advertising.
Date:
January 16, 1999
Creator:
Overton, Mac
Object Type:
Newspaper
System:
The Portal to Texas History
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 89, No. 5, Ed. 1 Saturday, January 16, 1999
Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 16, 1999
Creator:
Gann, Sherry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 289, Ed. 1 Tuesday, February 16, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 16, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Applications of Multivariate Statistical Analysis (MSA) in Microanalysis
Recent improvements in computer hardware and software for the acquisition, storage and analysis of series of spectra and images allow for a change in strategy for quantitative microanalysis. For example, in the area of X-ray microanalysis, whereas compositional analysis and elemental distributions have been traditionally performed using point microanalysis and simple intensity mapping from a ROI, respectively, the two tasks are now routinely performed simultaneously through X-ray spectrum-imaging, where full spectra are acquired from pixels in a two-dimensional array of points on the specimen. Commercially available software now allows for the acquisition and storage of such spectrum-images, perhaps comprising as much as 100 MBytes of data or more. A variety of post-acquisition processing tools are provided by the developer to allow the extraction of both X-ray intensity maps, with or without rudimentary background subtraction, or full spectra from pixels of interest. In order to maximize the extraction of information from these large data sets, a number of linear and nonlinear methods are currently being explored that identify statistically significant variations among the series of spectra without a priori assumptions about the content of the data set. Among these methods, linear multivariate statistical analysis (MSA) has a number of significant advantages, …
Date:
February 16, 1999
Creator:
Anderson, I. M.
Object Type:
Article
System:
The UNT Digital Library
Aquatic Macroinvertebrate Surveys in Upper Three Runs Creek and Pen Branch (Task Order 181)
This report talks about Aquatic Macroinvertebrate Surveys in Upper Three Runs Creek and Pen Branch (Task Order 181).
Date:
February 16, 1999
Creator:
Paller, M.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 93, Ed. 1 Tuesday, February 16, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 16, 1999
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 94, No. 14, Ed. 1 Tuesday, February 16, 1999
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
February 16, 1999
Creator:
Chionsini, Brandi
Object Type:
Newspaper
System:
The Portal to Texas History
Consolidated Education Planning: State Education Agencies' Implementation of Consolidated Planning at the Local Level
Correspondence issued by the General Accounting Office with an abstract that begins "GAO provided information on the impact of federal requirements on local school districts, focusing on how some states may not be fully implementing the provisions of federal law that allow local school districts to submit consolidated plans for federal funding."
Date:
February 16, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Correlation of Creep Behavior of Domal Salts
The experimentally determined creep responses of a number of domal salts have been reported in, the literature. Some of these creep results were obtained using standard (conventional) creep tests. However, more typically, the creep data have come from multistage creep tests, where the number of specimens available for testing was small. An incremental test uses abrupt changes in stress and temperature to produce several time increments (stages) of different creep conditions. Clearly, the ability to analyze these limited data and to correlate them with each other could be of considerable potential value in establishing the mechanical characteristics of salt domes, both generally and specifically. In any analysis, it is necessary to have a framework of rules to provide consistency. The basis for the framework is the Multimechanism-Deformation (M-D) constitutive model. This model utilizes considerable general knowledge of material creep deformation to supplement specific knowledge of the material response of salt. Because the creep of salt is controlled by just a few micromechanical mechanisms, regardless of the origin of the salt, certain of the material parameters are values that can be considered universal to salt. Actual data analysis utilizes the methodology developed for the Waste Isolation Pilot Plant (WIPP) program, and …
Date:
February 16, 1999
Creator:
Munson, Darrell E.
Object Type:
Article
System:
The UNT Digital Library
Design and performance of the main amplifier system for the National Ignition Facility
This paper describes the design and performance of flashlamp-pumped, Nd:glass. Brewster-angle slab amplifiers intended to be deployed in the National Ignition Facility (NIF). To verify performance, we tested a full-size, three-slab-long, NIF prototype amplifier, which we believe to be the largest flashlamp-pumped Nd:glass amplifier ever assembled. Like the NIF amplifier design, this prototype amplifier had eight 40-cm-square apertures combined in a four-aperture-high by two-aperture-wide matrix. Specially-shaped reflectors, anti-reflective coatings on the blastshields, and preionized flashlamps were used to increase storage efficiency. Cooling gas was flowed over the flashlamps to remove waste pump heat and to accelerate thermal wavefront recovery. The prototype gain results are consistent with model predictions and provide high confidence in the final engineering design of the NIF amplifiers. Although the dimensions, internal positions, and shapes of the components in the NIF amplifiers will be slightly different from the prototype, these differences are small and should produce only slight differences in amplifier performance
Date:
February 16, 1999
Creator:
Beullier, J; Erlandson, A; Grebot, E; Guenet, J; Guenet, M; Horvath, J et al.
Object Type:
Article
System:
The UNT Digital Library
Early deterioration of coarse woody debris.
Tainter, F.H., and J.W. McMinn. 1999. Early deterioration of coarse woody debris. In: Proc. Tenth Bien. South. Silv. Res. Conf. Shreveport, LA, February 16-18, 1999. Pp. 232-237 Abstract - Coarse woody debris (CWD) is an important structural component of southern forest ecosystems. CWD loading may be affected by different decomposition rates on sites of varying quality. Bolts of red oak and loblolly pine were placed on plots at each of three (hydric, mesic. and xerlc) sites at the Savannah River Site and sampled over a I6-week period. Major changes were in moisture content and nonstructural carbohydrate content (total carbohydrates, reducing sugars, and starch) of sapwood. Early changes in nonstructural carbohydrate levels following placement of the bolts were likely due to reallocation of these materials by sapwood parenchyma cells. These carbohydrates later formed pools increasingly metabolized by bacteria and invading fungi. Most prevalent fungi in sapwood were Ceratocysfis spp. in pine and Hypoxy/on spp. in oak. Although pine sapwood became blue stained and oak sapwood exhibited yellow soft decay with black zone lines, estimators of decay (specific gravity, sodium hydroxide solubility, and holocellulose content) were unchanged during the 16-week study period. A small effect of site was detected for starch content …
Date:
February 16, 1999
Creator:
Tainter, Frank, H. & McMinn, James, W.
Object Type:
Article
System:
The UNT Digital Library
Environmental Protection: Research and Development of Plasma Arc Technology Used to Treat Hazardous Waste
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on three selected research and development initiatives using the plasma arc technology to treat waste, focusing on comparing the characteristics of the largest of the Department of Energy (DOE) initiatives and both Navy shore and ship initiatives."
Date:
February 16, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 16, 1999
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 16, 1999
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Failure Mode and Effects RHIC Cryogenic Liquid Storage Area
None
Date:
February 16, 1999
Creator:
M., Gaffney
Object Type:
Report
System:
The UNT Digital Library
Federal Trade Commission: Information on Proposed Regional Restructuring Effort
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Federal Trade Commission's (FTC) proposal to restructure its regional operations, focusing on: (1) FTC's rationale for proposing the regional restructuring; (2) the process FTC followed in developing its restructuring proposal; (3) factors FTC used and could have used in deciding how to restructure; (4) other options to the proposed restructuring identified in prior FTC studies or by Boston and Denver regional officials; and (5) the views of selected stakeholders regarding the impact the proposed restructuring could have in the areas covered by the Boston and Denver regional offices."
Date:
February 16, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Final report for the Advanced Natural Gas Vehicle Project
The project objective was to develop the technologies necessary to prototype a dedicated compressed natural gas (CNG) powered, mid-size automobile with operational capabilities comparable to gasoline automobiles. A system approach was used to design and develop the engine, gas storage system and vehicle packaging. The 2.4-liter DOHC engine was optimized for natural gas operation with high-compression pistons, hardened exhaust valves, a methane-specific catalytic converter and multi-point gaseous injection. The chassis was repackaging to increase space for fuel storage with a custom-designed, cast-aluminum, semi-trailing arm rear suspension system, a revised flat trunk sheet-metal floorpan and by equipping the car with run-flat tires. An Integrated Storage system (ISS) was developed using all-composite, small-diameter cylinders encapsulated within a high-strength fiberglass shell with impact-absorbing foam. The prototypes achieved the target goals of a city/highway driving range of 300 miles, ample trunk capacity, gasoline vehicle performance and ultra low exhaust emissions.
Date:
February 16, 1999
Creator:
Wozniak, John
Object Type:
Report
System:
The UNT Digital Library
Gravity-destabilized nonwetting phase invasion in macro-heterogeneous porous media: Experimental observations of invasion dynamics and scale analysis
The authors designed and conducted experiments in a heterogeneous sand pack where gravity-destabilized nonwetting phase invasion (CO{sub 2} and TCE) could be recorded using high resolution light transmission methods. The heterogeneity structure was designed to be reminiscent of fluvial channel lag cut-and-fill architecture and contain a series of capillary barriers. As invasion progressed, nonwetting phase structure developed a series of fingers and pools; behind the growing front they found nonwetting phase saturation to pulsate in certain regions when viscous forces were low. Through a scale analysis, they derive a series of length scales that describe finger diameter, pool height and width, and regions where pulsation occurs within a heterogeneous porous medium. In all cases, they find that the intrinsic pore scale nature of the invasion process and resulting structure must be incorporated into the analysis to explain experimental results. The authors propose a simple macro-scale structural growth model that assembles length scales for sub-structures to delineate nonwetting phase migration from a source into a heterogeneous domain. For such a model applied at the field scale for DNAPL migration, they expect capillary and gravity forces within the complex subsurface lithology to play the primary roles with viscous forces forming a perturbation …
Date:
February 16, 1999
Creator:
GLASS JR.,ROBERT J.; CONRAD,STEPHEN H. & PEPLINSKI,WILLIAM J.
Object Type:
Article
System:
The UNT Digital Library
The Harper Herald (Harper, Tex.), Vol. 69, No. 107, Ed. 1 Tuesday, February 16, 1999
Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date:
February 16, 1999
Creator:
Bishop, Karen
Object Type:
Newspaper
System:
The Portal to Texas History
High-Power Reliable Operation of InGaAsP/InP Laser Bars at 1.73 {micro}m
InGaAsP/InP laser bars with an emission wavelength of 1.73 {micro}m have been fabricated using compressively-strained multiple-quantum-well separate-confinement heterostructures. One-cm-wide, 0.7-fill-factor, diode bars are bonded onto Si microchannel heatsinks. A maximum cw power of 16 W was produced from a one-cm bar. Derated to SW cw, the extrapolated lifetime is 10,000 hours of operation with a 20% degradation in output power. A 10-bar microlensed diode array with a one-square-cm aperture produced 200 W of peak power and was focused onto a Cr:ZnSe slab laser. Over 3 watts of pulsed power and xxmw of average power was generated at a wavelength of 2.5 {micro}m.
Date:
February 16, 1999
Creator:
Skidmore, J.; Page, R. H.; Freitas, B. L.; Reinhardt, C. E.; Utterback, E. J. & Emanuel, M. A.
Object Type:
Article
System:
The UNT Digital Library
Microscale Flow Modeling in Geologic Materials
Three-dimensional imaging techniques, numerical methods for simulating flow and transport, and emergent computational architectures are combined to enable fundamental studies of fluid flow at the pore scale. High resolution reconstructions of porous media obtained using laser scanning confocal microscopy reduce sampling artifacts to sub-micron features, and simultaneously capture multiple grain length scales. However, the volumetric image data sets are extremely large, and there are significant computational challenges in utilizing this information effectively. The principal problem lies in the complexity of the geometry and the retention of this structure in numerical analyses. Lattice Boltzmann (LB) methods provide a direct means to simulate transport processes in complex geometric domains due to the unique ability to treat accurately and efficiently the multitude of discrete boundary conditions. LB methods are numerically explicit as formulated, and this characteristic is exploited through a mapping of the numerical domain to distributed computing architectures. These techniques are applied to perform single phase flow simulations in 3D data sets obtained from cores of Berea sandstone using confocal microscopy. Simulations are performed using both a purpose-built distributed processor computer and a massively parallel processer (MPP) platform.
Date:
February 16, 1999
Creator:
Fredrich, J.T. & O'Connor, R.M.
Object Type:
Article
System:
The UNT Digital Library
Monsters and babies from the first/IRAS survey
Radio continuum emission at cm wavelengths is relatively little affected by extinction. When combined with far-infrared (FIR) surveys this provides for a convenient and unbiased method to select (radio-loud) AGN and starbursts deeply embedded in gas and dust-rich galaxies. Such radio-selected FIR samples are useful for detailed investigations of the complex relationships between (radio) galaxy and starburst activity, and to determine whether ULIRGs are powered by hidden quasars (monsters) or young stars (babies). We present the results of a large program to obtain identifications and spectra of radio-sleected, optically faint IRAS/FSC objects using the FIRST/VLA 20 cm survey (Becker, White and Helfand 1995). These objects are all radio-'quiet' in the sense that their radio power/FIR luminosities follow the well-known radio/FIR relationship for star forming galaxies. We compare these results to a previous study by our group of a sample of radio-'loud' IRAS/FSC ULIRGs selected from the Texas 365 MHz survey (Douglas et al. 1996). Many of these objects also show evidence for dominant, A-type stellar populations, as well as high ionization lines usually associated with AGN. These radio-loud ULIRGs have properties intermediate between those of starbursts and quasars, suggesting a possibile evolutionary connection. Deep Keck spectroscopic observations of three ULIRGs …
Date:
February 16, 1999
Creator:
Van Bruegel, W J M
Object Type:
Article
System:
The UNT Digital Library
Muon Collider: Muon Generation, Capture and Cooling
A {mu}{sup +} -{mu}{sup -} collider requires a high-intensity proton source for {pi}-production, a high-acceptance {pi}-{mu} decay channel, a {mu}-cooling system, a rapid acceleration system, and a high-luminosity collider ring for the collision of short, intense {mu}{sup +} -{mu}{sup -} bunches. Critical problems exist in developing and compressing high-energy proton bunches for producing {pi}�s, in capturing {pi}�s and their decay {mu}�s, and in cooling {mu}�s into a compressed phase-space at which high luminosity collisions are possible. These problems and some possible solutions are discussed; the current {mu}{sup +} -{mu}{sup -} collider research program is described
Date:
February 16, 1999
Creator:
Neuffer, David
Object Type:
Article
System:
The UNT Digital Library
[News Clip: Riverside History]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
February 16, 1999
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The North Texas Daily (Denton, Tex.), Vol. 81, No. 71, Ed. 1 Tuesday, February 16, 1999
Student newspaper from the University of North Texas in Denton, Texas that includes local, state, national, and campus news along with advertising. Formerly The Campus Chat.
Date:
February 16, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History