13,715 Matching Results

Search Results

Results: 1 - 24 next
open access

Relativistic atomic physics at the SSC

Description: This report discusses the following proposed work for relativistic atomic physics at the Superconducting Super Collider: Beam diagnostics; atomic physics research; staffing; education; budget information; statement concerning matching funds; description and justification of major items of equipment; statement of current and pending support; and assurance of compliance.
Date: December 31, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regulation of Colony-Stimulating Factor-1 Biosynthesis

Description: Recent studies suggest that synthesis of the Colony-stimulating factor (CSF) is a well regulated process. However, the molecular mechanisms of the signal transduction of the various inducers of CSF such as monokines and lymphokines are not well understood. Using Interleukin 1 (IL-1) stimulation of CSF-1 in the MIA PaCa-2 cell line as a model system, the involvement of G-protein has been studied. The IL-1 induction of CSF-1 synthesis can be inhibited by both Pertussis toxin and Cholera toxin, wh… more
Date: May 1990
Creator: Ku, Chun-Ying
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Influence of the First Amendment on Academic Freedom

Description: Academic freedom has gone through three distinct eras yet each era overlaps a great deal with the one following it. The first era was the bureaucratic. It was exemplified by the negotiations between administrators and professors in the 1920s. The American Association of University Professors and the American Association of Colleges began cooperating and a hierarchical structure emerged, with the tenured professor at the top of the faculty. The second era was the political era and it was mainly … more
Date: May 1990
Creator: Ferdon, Douglas Robert, 1945-
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Relativistic atomic beam spectroscopy. Progress report, February 1--September 30, 1990

Description: This year major advances have been made in 3 areas: high-lying, doubly-excited resonance states in the H{sup -}, interaction of relativistic H{sup -} ions with thin carbon foils, and multiphoton photodetachment. We plan to pursue these studies further.
Date: December 31, 1990
Creator: Bryant, H.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Observation of high-lying resonances in the H sup minus ion

Description: This dissertation reports the observation of several series of resonances, for which both electrons are in excited states, in the photodetachment cross section of H{sup {minus}}. These {sup 1}P doubly-excited states interfere with the continuum in which they are embedded, and appear as dips in the production cross section of excited neutral hydrogen. The experiment was performed by intersecting an 800 MeV H{sup {minus}} beam with a (266 nm) laser beam at varying angles; the relativistic Doppler… more
Date: May 1, 1990
Creator: Harris, P.G. (Los Alamos National Lab., NM (USA) New Mexico Univ., Albuquerque, NM (USA). Dept. of Physics and Astronomy)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Redistricting]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: April 1990
Duration: 1 minute 45 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Development of improved iron Fischer-Tropsch catalysts. Quarterly technical progress report, 1 October 1989--31 December 1989

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: January 15, 1990
Creator: Bukur, D. B. & Patel, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of improved iron Fischer-Tropsch catalysts. Quarterly technical progress report, 1 January 1990--31 March 1990

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: April 30, 1990
Creator: Bukur, D. B.; Patel, S. A.; Dalai, A. K.; Jayanthi, G. & Ledakowicz, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of improved iron Fischer-Tropsch catalysts. Quarterly technical progress report, 1 July 1990--30 September 1990

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: October 29, 1990
Creator: Bukur, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of improved iron Fischer-Tropsch catalysts. Quarterly technical progress report, 1 April 1990--30 June 1990

Description: The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: June 17, 1990
Creator: Bukur, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: 14-1]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas to accompany a news story.
Date: November 30, 1990, 5:00 p.m.
Duration: 2 minutes 15 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Stylistic and Technical Considerations for Pedaling the Debussy Preludes, Together with Three Recitals of Selected Works of L. van Beethoven, A. Berg, J. Brahms, F. Chopin, C. Debussy, W.A. Mozart, S. Prokofieff, A. Schoenberg, F. Schubert, and R. Schumann

Description: The lecture recital was given November 6, 1989. Five Preludes by Claude Debussy were preformed following a lecture on some important considerations of approaching the pedaling complexities in his solo piano works. In addition to the lecture recital, three other solo piano recitals were performed. The first solo recital consisted of works by Franz Schubert and Robert Schumann, and was performed on November 17, 1980. On March 1, 1982, the second solo recital was presented. This performance consis… more
Date: May 1990
Creator: Etheridge, Kay, 1954 Apr. 18-
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A novel process for manufacture of methanol. Progress report, March 1--May 31, 1990

Description: A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol by a novel process. During the last quarter, the effect of operating parameters such as temperature, pressure, feed H{sub 2}/CO ratio and feed flow rate on the MeOH synthesis rate were investigated. The specific rate of MeOH synthesis was found to vary with gas feed rate -- an unexpected result. It is proposed that this is due to the presence of small amounts of an inhibiting agent which accumu… more
Date: December 31, 1990
Creator: Tierney, J. W. & Wender, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The development of precipitated iron catalysts with improved stability. Technical progress report, April 1, 1990--June 30, 1990

Description: Precipitated iron catalysts are expected to be used in the next generation of slurry reactors for the large-scale production of transportation fuels from synthesis gas. These reactors may operate at higher temperatures and lower H {sub 2}: CO ratios relative to the Sasol Arge reactor. The feasibility of iron catalysts has been demonstrated under relatively mild Arge-type conditions but not under the more severe slurry conditions. The goal of this program is to identify the chemical principles g… more
Date: December 31, 1990
Creator: Shah, P. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technology development for iron Fischer-Tropsch catalysts. Technical progress report No. 1, September 26, 1990--December 26, 1990

Description: The objectives of this contract are to develop a technology for the production of active and stable iron Fischer-Tropsch catalysts for use in slurry-phase synthesis reactors and to develop a scale-up procedure for large-scale synthesis of such catalysts for process development and long-term testing in slurry bubble column reactors. With a feed containing H{sub 2}:CO in the ratio of 0.5 to 1.0, the catalyst performance target in the slurry bubble column reactor is 88% CO + H{sub 2}conversion at … more
Date: December 31, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of severe accident risks: Quantification of major input parameters: MAACS (MELCOR Accident Consequence Code System) input

Description: Estimation of offsite accident consequences is the customary final step in a probabilistic assessment of the risks of severe nuclear reactor accidents. Recently, the Nuclear Regulatory Commission reassessed the risks of severe accidents at five US power reactors (NUREG-1150). Offsite accident consequences for NUREG-1150 source terms were estimated using the MELCOR Accident Consequence Code System (MACCS). Before these calculations were performed, most MACCS input parameters were reviewed, and f… more
Date: December 1, 1990
Creator: Sprung, J. L.; Jow, H-N; Rollstin, J. A. & Helton, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Slurry phase Fischer-Tropsch synthesis: Cobalt plus a water-gas shift catalyst, January 1, 1990--March 30, 1990

Description: Experiments to study cobalt-catalyzed reactions of light 1-alkenes added to synthesis gas feed have been performed. Data have been collected at 220{degrees}C, 0.45 to 1.48 MPa and a synthesis gas flow rate between 0.015 and 0.030 Nl/(gcatmin) with H{sub 2}/CO of 1.45 to 2.25. C{sub 2}H{sub 4}, C{sub 3}H{sub 6}, and C{sub 4}H{sub 8} were added to the synthesis gas feed in concentrations ranging from 0.5 to 1.2 mole% of total feed. For each material balance in which 1-alkenes were added, a materi… more
Date: December 31, 1990
Creator: Yates, I. C. & Satterfield, C. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alkali/TX{sub 2} catalysts for CO/H{sub 2} conversion to C{sub 1}-C{sub 4} alcohols. Technical progress report, December 1989--February 1990

Description: The objective of this research is to investigate and develop novel catalysts for the conversion of coal-derived synthesis gas into C{sub 1}-C{sub 4} alcohols by a highly selective process. Therefore, the variations of catalyst activity and selectivity for the synthesis of alcohols from H{sub 2}/CO {le}1 synthesis gas for a series of A/TX{sub 2} compounds, where A is a surface alkali dopant, T is a transition metal, and X is a S, Se, or Te, will be determined. The alkali component A, which is es… more
Date: December 31, 1990
Creator: Klier, Kamil; Herman, Richard G.; Richards, Michelle & Bastian, Roy D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A novel process for manufacture of methanol. Progress report, December 1, 1989--February 28, 1990

Description: A bench-scale reactor is being used to conduct studies of the conversion of synthesis gas to methanol by a novel process. During the last quarter, the effect of potassium methoxide and Cu-chromite loading on the MeOH formation rate was investigated. The rate obtained with Cu-chromite was compared to that using Cu-ZnO as catalyst. Work also continued on the modification of the experimental equipment to permit on-line monitoring of liquid and gas compositions.
Date: December 31, 1990
Creator: Tierney, J. W. & Wender, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Spin-mapping of coal structures with ESE and ENDOR. Eighth quarterly (second annual) report

Description: A nondestructive method to determine the atomic and molecular structures present in the organic (maceral) components of whole coal and coal products has been sought for many years. This program of research is designed to address that analytical need by applying advanced electron magnetic resonance techniques to the determination of coal molecular structure. Structural information has be obtained by using the naturally occurring unpaired electrons in coal as ``observation posts`` from which to s… more
Date: September 1, 1990
Creator: Belford, R. L. & Clarkson, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Deep inelastic structure functions from electron scattering on hydrogen, deuterium, and iron at 0. 6 GeV sup 2 le Q sup 2 le 30. 0 GeV sup 2

Description: We report the final results from experiment E140, a recent deep inelastic electron-deuterium and electron-iron scattering experiment at SLAC. In addition, we present the results of a combined global analysis of all SLAC deep inelastic electron-hydrogen and electron-deuterium cross section measurements between 1970 and 1983. Data from seven earlier experiments are re-radiatively corrected and normalized to experiment E140. We report extractions of R(x,Q{sup 2}) and F{sub 2}(x,Q{sup 2}) for hydro… more
Date: March 1, 1990
Creator: Whitlow, L.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recent developments in laser-driven polarized sources

Description: Recent progress in the performance of laser-driven sources of polarized hydrogen and deuterium is described. The current status of the prototype source, I = 2.5 {times} 10{sup 17}s{sup {minus}1}, polarization = 0.29 (including atomic fraction), is comparable to classical Stern-Gerlach sources. A scheme to improve source performance by approximately an order of magnitude, using a combination of optical-pumping spin-exchange and RF transitions, is outlined. 8 refs., 2 figs., 1 tab.
Date: January 1, 1990
Creator: Young, L.; Coulter, K. P.; Holt, R. J.; Kinney, E. R.; Kowalczyk, R. S.; Potterveld, D. H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Williams]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date: October 30, 1990, 10:00 p.m.
Duration: 1 minute 30 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
Back to Top of Screen