Establishment and maintenance of a coal sample bank and data base (open access)

Establishment and maintenance of a coal sample bank and data base

In this Project Status Report for 7/9/89--10/8/89, results of a comparative study of coal sample deterioration in several container types were presented. In April 1990, one year after the initial analyses, the set of analyses was repeated on the most important container types. The new results are included in Table 2. During the current reporting period a total of 42 data printouts were distributed. In addition, 7 special data requests were fulfilled by either search/sort and printout or creation of a data disk, resulting in distribution of limited information on 2083 samples. Several preliminary requests for Sample Bank and Data Base information and price quotations have also been handled.
Date: July 11, 1990
Creator: Davis, A.
Object Type: Report
System: The UNT Digital Library
Autoionization of Be-like ions following double electron capture in C sup 4+ , O sup 6+ and Ne sup 8+ ions (open access)

Autoionization of Be-like ions following double electron capture in C sup 4+ , O sup 6+ and Ne sup 8+ ions

This paper describes electron emission following the autoionization of doubly excited states in Be-like ions. The Be-like Auger states are produced by two electron capture in slow C{sup 4+}, O{sup 6+} and Ne{sup 8+} ions. These measurements were performed by means of high resolution Auger electron spectroscopy on different target gases and at different projectile energies. Line assignments and relative cross sections are given for the investigated doubly excited states and the excitation mechanism is discussed. 15 refs., 16 figs., 4 tabs.
Date: September 11, 1990
Creator: McDonald, J.W.
Object Type: Report
System: The UNT Digital Library
The Flux and Recovery of Bioactive Substances in the Surface Sediments of Deep Basins Off Southern California (open access)

The Flux and Recovery of Bioactive Substances in the Surface Sediments of Deep Basins Off Southern California

Sediment microbial community biomass and activity in Santa Monica Basin, a nearshore basin in the California Continental Borderland, were examined in October 1985, 1986 and 1987, May 1986, April 1987 and January 1990. Millimeter-scale ATP profiles and incubation of intact cores with {sup 3}H-adenine indicated a high-biomass interface microbial population in the low-oxygen central basin, which was absent in samples from the basin slope sediments. A majority of microbial activity and organic matter mineralization occurred in the top cm of sediment. Comparison of measured ATP and total organic carbon profiles suggest that the C:ATP ratio (wt:wt) ranges between 47:1 and 77:1 in central basin interfacial populations, substantially lower than reported for other aquatic environments. Carbon production estimated from DNA synthesis measurements via {sup 3}H-adenine incorporation was compared with TCO{sub 2} fluxes measured by in situ benthic chamber experiments. Within the uncertainty of the C:ATP ratio, an overall microbial carbon assimilation efficiency of 75--90% was indicated. The low C:ATP ratios and high carbon assimilation efficiencies significantly affect estimates of microbial growth and respiration and are substantially different than those often assumed in the literature. These results suggest that without independent knowledge of these ratios, the uncertainty in tracer-derived microbial growth and …
Date: June 11, 1990
Creator: Jahnke, R. A.
Object Type: Report
System: The UNT Digital Library
Supersymmetry breaking from superstrings and the gauge hierarchy (open access)

Supersymmetry breaking from superstrings and the gauge hierarchy

The gauge hierarchy problem is reviewed and a class of effective field theories obtained from superstrings is described. These are characterized by a classical symmetry, related to the space-time duality of string theory, that is responsible for the suppression of observable supersymmetry breaking effects. At the quantum level, the symmetry is broken by anomalies that provide the seed of observable supersymmetry breaking, and an acceptably large gauge hierarchy may be generated. 39 refs.
Date: July 11, 1990
Creator: Gaillard, M.K. (Lawrence Berkeley Lab., CA (USA) California Univ., Berkeley, CA (USA). Dept. of Physics)
Object Type: Article
System: The UNT Digital Library
Photoionization and electron transfer in ionic crystals (open access)

Photoionization and electron transfer in ionic crystals

Three lines of work have been completed since our previously submitted proposal. These are: spectroscopy of Ce{sup 3+} {minus} Na{sup +} pairs in CaF{sub 2} and SrF{sub 2}, photoionization studies of Sm{sup 2+}, Eu{sup 2+} and Yb{sup 2+} in CaF{sub 2} and SrF{sub 2}; and infrared-detected two-photon spectroscopy of MgO:Ni{sup 2+}, and other two-photon spectroscopy studies. These are discussed in this report.
Date: September 11, 1990
Creator: McClure, D.S.
Object Type: Report
System: The UNT Digital Library
Deactivation by Carbon of Iron Catalysts for Indirect Liquefaction (open access)

Deactivation by Carbon of Iron Catalysts for Indirect Liquefaction

This report describes recent progress in a fundamental, three-year investigation of carbon formation and its effects on the activity and selectivity of promoted iron catalysts for Fischer-Tropsch (FT) synthesis, the objectives of which are: determine rates and mechanisms of carbon deactivation of unsupported Fe and Fe/K catalysts during CO hydrogenation over a range of CO concentrations, CO:H{sub 2} ratios, and temperatures; model the rates of deactivation of the same catalysts in fixed-bed reactors. During the thirteenth quarter design of software for a computer-automated reactor system to be used in the kinetic and deactivation studies was continued. Further progress was made toward the completion of the control language, control routines, and software for operating this system. Progress was also made on the testing of the system hardware and software. H{sub 2} chemisorption capacities and activity selectivity data were also measured for three iron catalysts promoted with 1% alumina. 47 refs., 8 figs., 1 tab.
Date: October 11, 1990
Creator: Bartholomew, C. H.
Object Type: Report
System: The UNT Digital Library
X-ray diffraction measurement of residual stresses in delta plutonium (open access)

X-ray diffraction measurement of residual stresses in delta plutonium

Residual stresses in delta plutonium can be measured by the x-ray diffractometer method. This was accomplished with the aid of an experimental tantalum x-ray target. Preliminary experiments are encouraging and indicate that stresses may be determined precisely and rapidly. Future work will involve determination of x-ray elastic constants, instrument calibration with stress-free standards, higher x-ray power and more sophisticated monochromatization methods. 4 refs., 4 figs., 1 tab.
Date: September 11, 1990
Creator: Steinmeyer, P.A.
Object Type: Report
System: The UNT Digital Library
X-Ray Holography at Lawrence Livermore National Laboratory (open access)

X-Ray Holography at Lawrence Livermore National Laboratory

The x-ray holography program at the Lawrence Livermore National Laboratory has two principal goals: (1) the development of x-ray diffraction techniques for DNA sequence analysis and (2) the development of x-ray laser holography for structural analysis of intact biological cells and organelles. DNA sequence analysis will be accomplished by applying x-ray diffraction techniques to determine the ensemble average of the sequence of labels along the individual elements of crystalline DNA. X-ray laser holographic imaging will be accomplished by applying three dimensional x-ray holography to elucidate the structure of few hundred angstrom objects such as 300 {Angstrom} chromatin fibers, nuclear pores and nucleic acid replication complexes in living cells. Existing laboratory x-ray lasers will be utilized to produce flash x-ray holograms of the biological structures.
Date: October 11, 1990
Creator: Trebes, J.; Annese, C.; Birdsall, D.; Brase, J.; Gray, J.; Lane, S. et al.
Object Type: Article
System: The UNT Digital Library
Petroleum marketing monthly, September 1990. [Contains Glossary] (open access)

Petroleum marketing monthly, September 1990. [Contains Glossary]

This report is designed to give information and statistical data about a variety of crude oils and refined petroleum products. The publication provides statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysts, education institutions, and consumers. Data on crude oil include the domestic first purchase price, the f.o.b. and landed cost of imported crude oil, and the refiners' acquisition cost of crude oil. Sales data for motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane are presented. 12 figs., 55 tabs.
Date: December 11, 1990
Creator: unknown
Object Type: Report
System: The UNT Digital Library
(Resonance ionization spectroscopy and its applications) (open access)

(Resonance ionization spectroscopy and its applications)

The Fifth International Symposium in Resonance Ionization Spectroscopy and Its Applications was attended. The Joint Research Centre of the European Communities at Ispra, Italy was also visited. The traveler presented an invited talk, chaired a meeting session and gave an impromptu presentation on how current laser technology limits the development of commercial instrumentation based upon Resonance Ionization Spectroscopy. The conference was truely international with scientists from 19 countries and less than 1/4 from the US. The meeting also provided a health mixture of experimentalists and theoreticians. Technical developments reported included the use of electric field ionization from laser prepared Rydberg states as a way to reduce background signals and commercial development of an optical parametric oscillator for replacing pulsed dye laser. A speaker from the Soviet Union suggested their willingness to market hardware they have developed based upon the resonance ionization technique.
Date: October 11, 1990
Creator: Ramsey, J. M.
Object Type: Report
System: The UNT Digital Library
The US petroleum refining industry in the 1980's (open access)

The US petroleum refining industry in the 1980's

As part of the EIA program on petroleum, The US Petroleum Refining Industry in the 1980's, presents a historical analysis of the changes that took place in the US petroleum refining industry during the 1980's. It is intended to be of interest to analysts in the petroleum industry, state and federal government officials, Congress, and the general public. The report consists of six chapters and four appendices. Included is a detailed description of the major events and factors that affected the domestic refining industry during this period. Some of the changes that took place in the 1980's are the result of events that started in the 1970's. The impact of these events on US refinery configuration, operations, economics, and company ownership are examined. 23 figs., 11 tabs.
Date: October 11, 1990
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 15, Number 36, Pages 2653-2709, May 11, 1990 (open access)

Texas Register, Volume 15, Number 36, Pages 2653-2709, May 11, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: May 11, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 15, Number 92, Pages 7061-7134, December 11, 1990 (open access)

Texas Register, Volume 15, Number 92, Pages 7061-7134, December 11, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: December 11, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 15, Number 69, (Volume 2), Pages 5207-5330, September 11, 1990 (open access)

Texas Register, Volume 15, Number 69, (Volume 2), Pages 5207-5330, September 11, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: September 11, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 15, Number 69, (Volume I), Pages 5155-5205, September 11, 1990 (open access)

Texas Register, Volume 15, Number 69, (Volume I), Pages 5155-5205, September 11, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: September 11, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: JM-1135 (open access)

Texas Attorney General Opinion: JM-1135

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification;Construction of the Human Immunodeficiency virus service act ,article 4419b-4 ,V.T.C.S(RQ-1886).
Date: January 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-1219 (open access)

Texas Attorney General Opinion: JM-1219

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Authority of the Parks and Wildlife Department to accept an affidavit in lieu of a certificate of title for a boat (RQ-2043)
Date: September 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO90-42 (open access)

Texas Attorney General Opinion: LO90-42

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether a sheriff in a county with a population of more than 200,000 has authority to operate a jail commissary.
Date: July 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO90-43 (open access)

Texas Attorney General Opinion: LO90-43

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification.
Date: July 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO90-61 (open access)

Texas Attorney General Opinion: LO90-61

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification.
Date: September 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Palladium deposited on kieselguhr (Pd/K) for the Replacement Tritium Facility (RTF) (open access)

Palladium deposited on kieselguhr (Pd/K) for the Replacement Tritium Facility (RTF)

Palladium deposited on kieselguhr (Pd/K) will be used for several applications in the Replacement Tritium Facility (RTF). The Pd/K procured for the RTF consists of three batches. All three batches meet the specified particle size distribution that 80 weight percent be between 30 and 50 mesh. One batch contains 53.6% palladium which is less than the specified minimum of 55%. Another batch has a chlorine content of 311 ppm which is slightly in excess of the specified maximum of 250 ppm. These nonconformances are not considered significant since batches will be blended to yield Pd/K for the RTF that meets the chlorine specification and has acceptable palladium content. Some of the Pd/K procured for the RTF will be heat treated to strengthen the particles against breakdown during use. Heat treating parameters must be determined that will preserve the desired absorption/desorption behavior of the Pd/K. 8 refs., 7 figs., 2 tabs.
Date: January 11, 1990
Creator: Mosley, W. C.
Object Type: Article
System: The UNT Digital Library
Texas Attorney General Opinion: LO90-23 (open access)

Texas Attorney General Opinion: LO90-23

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification.
Date: May 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO90-41 (open access)

Texas Attorney General Opinion: LO90-41

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification.
Date: July 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-1255 (open access)

Texas Attorney General Opinion: JM-1255

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Use of municipal revenue bonds to acquire a school building for lease to an independent school district (RQ-1876)
Date: December 11, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History