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Surfactant studies for bench-scale operation. Second quarterly technical progress report, October 1, 1992--December 31, 1992

Description: A phase II study has been initiated to investigate surfactant-assisted coal liquefaction, with the objective of quantifying the enhancement in liquid yields and product quality. This report covers the second quarter of work. The major accomplishments were (1) completion of coal liquefaction autoclave reactor runs with Illinois No. 6 coal at processing temperatures of 300, 325, and 350{degrees}C, and pressures of 1800 psig, (2) analysis of the filter cake and the filtrate obtained from the treat… more
Date: January 15, 1993
Creator: Hickey, G. S. & Sharma, P. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Theory of RBE. Annual technical progress report, 1 January--31 December, 1994

Description: In researching the theory of RBE, attention is focused on several topics of importance. They include: improving knowledge of the radial distribution of dose about the path of an energetic heavy ion in different media; calculations which have demonstrated that three Escherichia coli mutants behave as 1-hit detectors; lethal mutations in a nematode induced by gamma radiation and heavy ion beams; prevalence in cancer induction in the Harderian gland by HZE particles; subtleties in the analysis of … more
Date: June 15, 1994
Creator: Katz, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements of Materials Shielding Properties with 1 GeV/nuc56Fe

Description: The design of future spacecraft such as the Crew ExplorationVehicle must take into account the radiation shielding properties of boththe structural components as well as dedicated shielding materials. Sincemodest depths of shielding stop the vast majority of Solar EnergeticParticles (SEP), the greater challenge is posed by the need to shieldcrew from the Galactic Cosmic Rays (GCR), which include highly-chargedand highly-energetic particles. Here, we report on results from testsperformed with be… more
Date: May 15, 2006
Creator: Zeitlin, Cary; Guetersloh, Stephen B.; Heilbronn, Lawrence H. & Miller, Jack
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surfactant studies for bench-scale operation

Description: A phase II study has been initiated to investigate surfactant-assisted coal liquefaction, with the objective of quantifying the enhancement in liquid yields and product quality. This report covers the second quarter of work. The major accomplishments were (1) completion of coal liquefaction autoclave reactor runs with Illinois No. 6 coal at processing temperatures of 300, 325, and 350[degrees]C, and pressures of 1800 psig, (2) analysis of the filter cake and the filtrate obtained from the treat… more
Date: January 15, 1993
Creator: Hickey, G.S. & Sharma, P.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effect of the shape function on small-angle scattering analysis by the maximum entropy method

Description: Analysis of small-angle scattering data to obtain a particle size distribution is dependent upon the shape function used to model the scattering. Using a maximum entropy analysis of small-angle scattering data, the effect of shape function selection on obtained size distribution is demonstrated using three different shape functions to describe the same scattering data from each of two steels. The alloys have been revealed by electron microscopy to contain a distribution of randomly oriented and… more
Date: September 15, 1992
Creator: Jemian, P. R. & Allen, Andrew J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of the flux and polarization spectra of the type Ia supernova SN 2001el: Exploring the geometry of the high-velocity Ejecta

Description: SN 2001el is the first normal Type Ia supernova to show a strong, intrinsic polarization signal. In addition, during the epochs prior to maximum light, the CaII IR triplet absorption is seen distinctly and separately at both normal photospheric velocities and at very high velocities. The unusual, high-velocity triplet absorption is highly polarized, with a different polarization angle than the rest of the spectrum. The unique observation allows us to construct a relatively detailed picture of t… more
Date: January 15, 2003
Creator: Kasen, Daniel; Nugent, Peter; Wang, Lifan; Howell, D. A.; Wheeler, J. Craig; Hoeflich, Peter et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quantum Dots-based Reverse Phase Protein Microarray

Description: CdSe nanocrystals, also called quantum dots (Qdots) are a novel class of fluorophores, which have a diameter of a few nanometers and possess high quantum yield, tunable emission wavelength and photostability. They are an attractive alternative to conventional fluorescent dyes. Quantum dots can be silanized to be soluble in aqueous solution under biological conditions, and thus be used in bio-detection. In this study, we established a novel Qdot-based technology platform that can perform accurat… more
Date: July 15, 2005
Creator: Shingyoji, Masato; Gerion, Daniele; Pinkel, Dan; Gray, Joe W. & Chen, Fanqing
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Integrated ground-based and remotely sensed data to support global studies of environmental change

Description: Data centers routinely archive and distribute large databases of high quality and with rigorous documentation but, to meet the needs of global studies effectively and efficiently, data centers must go beyond these traditional roles. Global studies of environmental change require integrated databases of multiple data types that are accurately coordinated in terms of spatial, temporal and thematic properties. Such datasets must be designed and developed jointly by scientific researchers, computer… more
Date: September 15, 1994
Creator: Olson, R. J.; Turner, R. S. & Garten, C. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The determination of the constitutive parameters of a medium with application to a reinforced concrete pad

Description: This report describes the experimental and analytical program performed to determine the constitutive parameters of the reinforced concrete pad in the test facility used during the Low Power On-the-Ground portion of the NASA Boeing 757 HIRF Tests. These tests were conducted during the period September 20 to October 21, 1994 in the LESLI facility at the Phillips Laboratory, Kirtland AFB, NM. The on-the-ground tests were designed to meet several objectives including support of a flight test serie… more
Date: January 15, 1995
Creator: Poggio, A. J.; Burke, G. J. & Pennock, S. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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