UNT Libraries Government Documents Department - 52 Matching Results

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100 Area Columbia River sediment sampling

Description: Forty-four sediment samples were collected from 28 locations in the Hanford Reach of the Columbia River to assess the presence of metals and man-made radionuclides in the near shore and shoreline settings of the Hanford Site. Three locations were sampled upriver of the Hanford Site plutonium production reactors. Twenty-two locations were sampled near the reactors. Three locations were sampled downstream of the reactors near the Hanford Townsite. Sediment was collected from depths of 0 to 6 in. … more
Date: September 8, 1993
Creator: Weiss, S. G.
Item Type: Refine your search to only Report
open access

Alternatives for sodium-potassium alloy treatment

Description: Sodium-potassium alloy (NaK) is currently treated at the Y-12 Plant by open burning. Due to uncertainties with future permits for this process alternative treatment methods were investigated, revealing that two treatment processes are feasible. One process reacts the NaK with water in a highly concentrated molten caustic solution (sodium and potassium hydroxide). The final waste is a caustic that may be used elsewhere in the plant. This process has two safety concerns: Hot corrosive materials u… more
Date: April 8, 1993
Creator: Takacs, T. J. & Johnson, M. E.
Item Type: Refine your search to only Report
open access

Bench-Scale Co-Processing

Description: This topical report is the first for the UOP Bench-Scale Co-processing contract. The objective of this contract is to extend and optimize the UOP single-stage, slurry-catalyzed co-processing scheme. UOP co-processing uses a single-stage, slurry-catalyzed scheme in which petroleum vacuum resid and coal are simultaneously upgraded to a high-quality synthetic oil. A highly active, well-dispersed catalyst permits operations at moderate- and high-severity reaction conditions with minimum detrimental… more
Date: November 8, 1993
Creator: Piasecki, C. A.; Gatsis, J. G. & Fullerton, H. E.
Item Type: Refine your search to only Report
open access

Calculated cross sections for production and destruction of some long-lived nuclides of importance in fusion energy applications

Description: Knowledge of the production and destruction of long-lived species via neutrons, photons, and charged-particles is required in many fusion energy applications, such as reactor first-wall and blanket design, radioactive waste management, etc. Here we describe our calculational results for the production, via the (n,2n) reaction, of the following long-lived species: {sup 150}Eu(t{sub 1/2} = 36 y), {sup 152}Eu(t{sub 1/2} = 13 y), and {sup 192m2}Ir(t{sub 1/2} = 241 y). Some comments on calculations … more
Date: July 8, 1993
Creator: Gardner, M. A. & Gardner, D. G.
Item Type: Refine your search to only Article
open access

Cathode strip chamber interface with support structure for SSC GEM detector muon subsystem

Description: Structural design and analysis and other practical engineering considerations indicate that the 3-point, kinematic chamber support concept in the GEM Technical Design Report should be replaced by a 4-point, {open_quotes}partial{close_quotes} kinematic support design. Detector physics performance may increase due to a resulting decreased mass in the secondary support structure.
Date: December 8, 1993
Creator: Belser, F. C.; Clements, J. W.; Holdener, F. R.; Horvath, J. A.; Pratuch, S. M.; Wuest, C. R. et al.
Item Type: Refine your search to only Report
open access

Corrosion-resistant iridium-platinum anode material for high polarization application in corrosive acids

Description: The present invention relates to highly corrosion resistant components for use in an electrochemical cell. Specifically, these components are resistant to corrosion under very extreme conditions such as exposure to aqua regia in the presence of a constant current density of 100mA/m{sup 2}. The components are comprised of an iridium-platinum alloy that comprises less than 30% iridium. In a preferred embodiment of the present invention, the iridium-platinum alloy comprises 15-20% iridium. In anot… more
Date: September 8, 1993
Creator: Farmer, J.; Summers, L. & Lewis, P.
Item Type: Refine your search to only Patent
open access

Design of an electromagnetic accelerator for turbulent hydrodynamic mix studies

Description: An electromagnetic accelerator in the form of a linear electric motor (LEM) has been designed to achieve controlled acceleration profiles of a carriage containing hydrodynamically unstable fluids for the investigation of the development of turbulent mix. The Rayleigh- Taylor instability is investigated by accelerating two dissimilar density fluids using the LEM to achieve a wide variety of acceleration and deceleration profiles. The acceleration profiles are achieved by independent control of r… more
Date: December 8, 1993
Creator: Susoeff, A. R.; Hawke, R. S.; Morrison, J. J.; Dimonte, G. & Remington, B. A.
Item Type: Refine your search to only Article
open access

Development of a catalyst for conversion of syngas-derived materials to isobutylene. Quarterly report No. 7, October 1, 1992--December 31, 1992

Description: The main goal of this contract is to develop a catalyst and technology that will produce iC{sub 4}= directly from coal-derived syngas and that is capable of utilizing a lower (0.5 to 1.0) H{sub 2}:CO ratio. The research will identify and optimize the key catalyst and process characteristics that give improved performance for CO conversion by a non-Fischer-Tropsch process. This report, which is the seventh quarterly report covers the testing of various ZrO{sub 2}-based catalyst systems designed … more
Date: September 8, 1993
Creator: Gajda, G.J.
Item Type: Refine your search to only Report
open access

Direct aromatization of methane; Quarterly technical progress report No. 4, July 1, 1993--September 30, 1993

Description: The pyrolysis of methane in the absence of a quench was studied at temperatures between 900 and 1050{degrees}C and methane flows of 80--200 Scc/min. At 1050{degrees}C and a methane flow rate of 100 Scc/minute, methane conversion ranged between 15--19% with the major products being benzene, acetylene, and ethylene. The benzene molar selectivity was ca. 50%, corresponding to molar yield of ca. 7.5--10%. The reaction resulted in the formation of visible amounts of solid carbon, particularly at 105… more
Date: October 8, 1993
Item Type: Refine your search to only Report
open access

Human genome sequencing with direct x-ray holographic imaging

Description: Direct holographic imaging of biological materials is widely applicable to the study of the structure, properties and action of genetic material. This particular application involves the sequencing of the human genome where prospective genomic imaging technology is composed of three subtechnologies, name an x-ray holographic camera, suitable chemistry and enzymology for the preparation of tagged DNA samples, and the illuminator in the form of an x-ray laser. We report appropriate x-ray camera, … more
Date: June 8, 1993
Creator: Rhodes, C.K.
Item Type: Refine your search to only Report
open access

Human genome sequencing with direct x-ray holographic imaging. Final report

Description: Direct holographic imaging of biological materials is widely applicable to the study of the structure, properties and action of genetic material. This particular application involves the sequencing of the human genome where prospective genomic imaging technology is composed of three subtechnologies, name an x-ray holographic camera, suitable chemistry and enzymology for the preparation of tagged DNA samples, and the illuminator in the form of an x-ray laser. We report appropriate x-ray camera, … more
Date: June 8, 1993
Creator: Rhodes, C. K.
Item Type: Refine your search to only Report
open access

INEL cold test pit demonstration of improvements in information derived from non-intrusive geophysical methods over buried waste sites. Phase 1, Final report

Description: The objectives of this research project were to lay the foundation for further improvement in the use of geophysical methods for detection of buried wastes, and to increase the information content derived from surveys. Also, an important goal was to move from mere detection to characterization of buried wastes. The technical approach to achieve these objectives consisted of: (1) Collect a data set of high spatial density; (2) Acquire data with multiple sensors and integrate the interpretations … more
Date: September 8, 1993
Item Type: Refine your search to only Report
open access

Insect community structure and function in Upper Three Runs, Savannah River Site, South Carolina

Description: A project to document the insect species in the upper reaches of Upper Three Runs at the Savannah River site was recently completed. This research was supported by the US Department of Energy under the National Environmental Research Park Program. The work was performed by the Department of Entomology at Clemson University in clemson, SC, by John C. Morse (principal investigator), William R. English and their colleagues. The major output from this study was the dissertation of Dr. William R. En… more
Date: July 8, 1993
Creator: Morse, J. C.; English, W. R. & Looney, B. B.
Item Type: Refine your search to only Report
open access

Inspection of selected intelligence and special access program work-for-others projects

Description: At the request of the former Secretary, an inspection of six classified intelligence and special access program work-for-others projects was conducted. The purpose of this inspection was to evaluate managements, effectiveness regarding these work-for-others projects and included tests for financial integrity and adherence to applicable laws and regulations. Details of the inspection are provided in this report.
Date: October 8, 1993
Item Type: Refine your search to only Report
open access

Investigation of the relative abundance of heavy versus light nuclei in primary cosmic rays using underground muon bundles

Description: We study multiple muon events (muon bundles) recorded underground at a depth of 2090 mwe. To penetrate to this depth, the muons must have energies above 0.8 TeV at the Earth`s surface; the primary cosmic ray nuclei which give rise to the observed muon bundles have energies at incidence upon the upper atmosphere of 10 to 10{sup 5}TeV. The events are detected using the Soudan 2 experiment`s fine grained tracking calorimeter which is surrounded by a 14 m {times}10 m {times} 31 m proportional tube … more
Date: June 8, 1993
Creator: Sundaralingam, N.
Item Type: Refine your search to only Thesis or Dissertation
open access

Knob manager (KM) operators guide

Description: KM, Knob Manager, is a tool which enables the user to use the SUNDIALS knob box to adjust the settings of the control system. The followings are some features of KM: dynamic knob assignments with the user friendly interface; user-defined gain for individual knob; graphical displays for operating range and status of each process variable is assigned; backup and restore one or multiple process variable; save current settings to a file and recall the settings from that file in future.
Date: October 8, 1993
Item Type: Refine your search to only Report
open access

Measurement of chemical emissions under the influence of low-NO{sub x} combustion modifications. Final report

Description: Effect of low-NO{sub x} firing. There was no clear-cut effect on the emission of trace metals or acid gases. The data give marginal evidence for a decreased emission of Cr(VI), which would be a favorable change but is not certain by any means. The effect on aldehydes and ketones cannot be stated because of the loss of samples for baseline conditions; no credible data on these compounds were obtained for baseline conditions. The change in volatile organics appeared to be a reduction in emissions… more
Date: October 8, 1993
Creator: Dismukes, E. B.
Item Type: Refine your search to only Report
open access

Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles

Description: A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. T… more
Date: September 8, 1993
Creator: Carpenter, D.A.
Item Type: Refine your search to only Patent
open access

Nuclear Spectroscopic Studies

Description: The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led several experiments at the Holifield Heavy Ion Research Facility and participate… more
Date: February 8, 1993
Creator: Bingham, C. R.; Guidry, M. W.; Riedinger, L. L. & Sorensen, S. P.
Item Type: Refine your search to only Report
open access

Nuclear spectroscopic studies. Progress report

Description: The Nuclear Physics group at the University of Tennessee, Knoxville is involved in several aspects of heavy-ion physics including both nuclear structure and reaction mechanisms. While our main emphasis is on experimental problems involving heavy-ion accelerators, we have maintained a strong collaboration with several theorists in order to best pursue the physics of our measurements. During the last year we have led several experiments at the Holifield Heavy Ion Research Facility and participate… more
Date: February 8, 1993
Creator: Bingham, C. R.; Guidry, M. W.; Riedinger, L. L. & Sorensen, S. P.
Item Type: Refine your search to only Report
open access

Plans for building the largest thin solenoid ever

Description: The superconducting solenoid magnet for the GEM detector poses unusual fabrication and handling challenges because of its extraordinary size. It will be more than 30% larger in diameter than the largest existing particle detector coils. Each of the two coil elements that compose the air-core solenoid, will be about 19 meters in diameter and 15 meters long. Major components weighing as much as 1500 Mg must be transported and manipulated at the Interaction Region 5 (IR5) fabrication site of the S… more
Date: September 8, 1993
Creator: Heim, J.; Bowers, J. & Deis, G.
Item Type: Refine your search to only Article
open access

Proposed first-generation WSQ bit allocation procedure

Description: The Wavelet/Scalar Quantization (WSQ) gray-scale fingerprint image compression algorithm involves a symmetric wavelet transform (SWT) image decomposition followed by uniform scalar quantization of each subband. The algorithm is adaptive insofar as the bin widths for the scalar quantizers are image-specific and are included in the compressed image format. Since the decoder requires only the actual bin width values -- but not the method by which they were computed -- the standard allows for futur… more
Date: September 8, 1993
Creator: Bradley, J. N. & Brislawn, C. M.
Item Type: Refine your search to only Article
open access

Recent studies of short-range order in alloys: The Cowley theory revisited

Description: We present comparisons of various statistical theories for effective pair interactions (EPI) in alloys. We then evaluate these EPI`s using the Cowley theory, the Krivoglaz-Clapp-Moss (KCM) approximation, the {gamma}-expansion method (GEM) of Tokar, Masanskii and coworkers, and the exact inverse Monte Carlo (IMC) method, introduced by Gerold and Kern. Via a series of model calculations on a hypothetical bcc alloy with a single nearest-neighbor interaction we show that the Cowley theory is succes… more
Date: February 8, 1993
Creator: Reinhard, L. & Moss, S. C.
Item Type: Refine your search to only Article
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