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H-Area Seepage Basins

Description: During the third quarter of 1990 the wells which make up the H-Area Seepage Basins (H-HWMF) monitoring network were sampled. Laboratory analyses were performed to measure levels of hazardous constituents, indicator parameters, tritium, nonvolatile beta, and gross alpha. A Gas Chromatograph Mass Spectrometer (GCMS) scan was performed on all wells sampled to determine any hazardous organic constituents present in the groundwater. The primary contaminants observed at wells monitoring the H-Area Se… more
Date: December 1, 1990
Creator: Stejskal, G.
Partner: UNT Libraries Government Documents Department
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Diagnosing vegetation injury caused by air pollution

Description: The structure and function of plants in relation to air pollution injury is discussed. The sources, atmospheric chemistry, monitoring data, symptomatology, factors affecting plant response, injury threshold doses, air quality standards, relative sensitivity of plants, and leaf tissue analysis are discussed for major air pollutants. Among the pollutants discussed are: the photochemical oxidants (ozone, PAN, nitrogen oxides, sulfur dioxide, and fluorides). Minor pollutants discussed in the same f… more
Date: February 1, 1978
Partner: UNT Libraries Government Documents Department
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Dominant lethal study in CD-1 mice following inhalation exposure to 1,3-butadiene: Final technical report

Description: The effects of whole-body inhalation exposures to 1,3-butadiene on the reproductive system was evaluated. The results of dominant lethality in CD-1 male mice that were exposed to 1,3-butadiene are described. Subsequent to exposure, males were mated with two unexposed females. Mating was continued for 8 weeks with replacement of two females each week. Gravid uteri were removed, and the total number, position and status of implantations were determined. The mice were weighed prior to exposure and… more
Date: April 1, 1988
Creator: Hackett, P. L.; Mast, T. J.; Brown, M. G.; Clark, M. L.; Evanoff, J. J.; Rowe, S. E. et al.
Partner: UNT Libraries Government Documents Department
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Heavy recycle solvent studies in two-stage coal liquefaction. Final technical report, September 1, 1982-December 30, 1983

Description: The objective of this program has been to study the chemistry of the components with high boiling points in a direct coal liquefaction recycle solvent and to identify those components which lead to higher overall yields and improved product stability in the initial coal dissolution step of direct coal liquefaction processes. The major conclusions are: -454 C recycle solvent is primarily aromatic hydrocarbons (73%) and contains almost no asphaltenes; +454 C recycle solvent is primarily asphalten… more
Date: January 10, 1984
Creator: Longanbach, J. R.
Partner: UNT Libraries Government Documents Department
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HC quench layer formation in combustion processes. Technical progress report, January-April 1980

Description: The project is aimed at understanding wall quenching and other processes responsible for surface generated hydrocarbons in combustion under engine-like conditions. The study concerns the effects of turbulence on the evolution of hydrocarbons. At the conclusion of the program, significant new experimental information will have been generated and an analytical model of the fluid mechanics and some aspects of the chemistry of quenching will be formulated. The work is divided into three tasks: (1) … more
Date: June 1, 1980
Creator: Lavoie, G. A.
Partner: UNT Libraries Government Documents Department
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Research into the pyrolysis of pure cellulose, lignin, and birch wood flour in the China Lake entrained-flow reactor

Description: This experimental program used the China Lake entrained-flow pyrolysis reactor to briefly investigate the pyrolysis of pure cellulose, pure lignin, and birch wood flour. The study determined that the cellulose and wood flour do pyrolyze to produce primarily gaseous products containing significant amounts of ethylene and other useful hydrocarbons. During attempts to pyrolyze powdered lignin, the material melted and bubbled to block the reactor entrance. The pure cellulose and wood flour produced… more
Date: June 1, 1980
Creator: Diebold, J.
Partner: UNT Libraries Government Documents Department
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Interdisciplinary research and training program in the plant sciences

Description: This document is the compiled progress reports from the Interdisciplinary Research and Training Program in the Plant Sciences funded through the MSU-DOE Plant Research Laboratory. Fourteen reports are included, covering topics such as the molecular basis of plant/microbe symbiosis, cell wall proteins and assembly, gene expression, stress responses, growth regulator biosynthesis, interaction between nuclear and organelle genomes, sensory transduction and tropisms, intracellular sorting and membr… more
Date: January 1, 1991
Creator: Wolk, C.P.
Partner: UNT Libraries Government Documents Department
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High-efficiency photoionization detector

Description: A high efficiency photoionization detector using tetraaminoethylenes in a gaseous state having a low ionization potential and a relative photoionization cross section which closely matches the emission spectrum of xenon gas. Imaging proportional counters are also disclosed using the novel photoionization detector of the invention. The compound of greatest interest is TMAE which comprises tetrakis(dimethylamino)ethylene which has a measured ionization potential of 5.36 +- 0.02 eV, and a vapor pr… more
Date: May 12, 1981
Creator: Anderson, D.F.
Partner: UNT Libraries Government Documents Department
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Chemical activation of molecules by metals: Experimental studies of electron distributions and bonding

Description: The formal relationship between measured molecular ionization energies and thermodynamic bond dissociation energies has been developed into a single equation which unifies the treatment of covalent bonds, ionic bonds, and partially ionic bonds. This relationship has been used to clarify the fundamental thermodynamic information relating to metal-hydrogen, metal-alkyl, and metal-metal bond energies. We have been able to obtain a direct observation and measurement of the stabilization energy prov… more
Date: October 1991
Creator: Lichtenberger, Dennis L.
Partner: UNT Libraries Government Documents Department
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Catalytic hydrogenation of carbon monoxide

Description: This project is focused on developing strategies to accomplish the reduction and hydrogenation of carbon monoxide to produce organic oxygenates at mild conditions. Our approaches to this issue are based on the recognition that rhodium macrocycles have unusually favorable thermodynamic values for producing a series of intermediate implicated in the catalytic hydrogenation of CO. Observations of metalloformyl complexes produced by reactions of H{sub 2} and CO, and reductive coupling of CO to form… more
Date: December 1, 1992
Creator: Wayland, B.B.
Partner: UNT Libraries Government Documents Department
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Combustion Research Program: Flame studies, laser diagnostics, and chemical kinetics

Description: We have made a detailed study of the care that must be taken to correctly measure OH radical concentrations in flames. A large part of these studies has concerned collisional quenching of hydride radical species (OH, NH, and NH{sub 2}), in particular the dependence upon rotational level and collision velocity (temperature). The results on OH and NH have shown unique and interesting behavior from the viewpoint of fundamental molecular dynamics, pointing to quenching often governed by collisions … more
Date: January 22, 1991
Creator: Crosley, D.R.
Partner: UNT Libraries Government Documents Department
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Catalyst and Feedstock Effects in the Thermochemical Conversion of Biomass to Liquid Transportation Fuels

Description: The thermochemical conversion of biomass feedstocks to liquid transportation fuels can be accomplished by three processes, namely gasification, high-pressure liquefaction, and pyrolysis. In this study, the pyrolysis option is selected which is followed by the catalytic upgrading of pyrolysis vapors to aromatic and olefinic hydrocarbons (PYROCAT process). The aromatics constitute a high-octane gasoline blend, while the olefins can be utilized as feedstocks for various chemicals. The PYROCAT proc… more
Date: May 1992
Creator: Rejai, B.; Agblevor, F. A.; Evans, R. J. & Wang, D.
Partner: UNT Libraries Government Documents Department
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High energy halogen atom reactions activated by nuclear transformations. Progress report, February 15, 1979-February 14, 1980

Description: The program consists of six interrelated areas: (1) Reactions of iodine with alkenes and alkynes activated by radiative neutron capture and isomeric transition in low pressure gaseous systems employing additives and rare gas moderators, high pressure, and liquid systems. Special attention was given to the reactivity of excited complex formation and structural effects of electrophilic iodine attack on various pi-bond systems. (2) The gas-to-condensed phase transition in halogen high energy chemi… more
Date: February 1, 1980
Creator: Rack, E.P.
Partner: UNT Libraries Government Documents Department
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Evaluation of processes for producing gasoline from wood. Final report

Description: Three processes for producing gasoline from wood by pyrolysis have been investigated. Technical and economic comparisons among the processes have been made, based on a hypothetical common plant size of 2000 tons per day green wood chip feedstock. In order to consider the entire fuel production process, the energy and cost inputs for producing and delivering the feedstock were included in the analysis. In addition, perspective has been provided by comparisons of the wood-to-gasoline technologies… more
Date: May 1, 1980
Partner: UNT Libraries Government Documents Department
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Isotope effect on the zero point energy shift upon condensation

Description: The various isotope-dependent and independent atomic and molecular properties that pertain to the isotopic difference between the zero point energy (ZPE) shifts upon condensation were derived. The theoretical development of the change of the ZPE associated with the internal molecular vibrations, due to the condensation of the gaseous molecules, is presented on the basis of Wolfsberg's second-order perturbation treatment of the isotope-dependent London dispersion forces between liquid molecules.… more
Date: July 1, 1977
Creator: Kornblum, Z.C. & Ishida, T.
Partner: UNT Libraries Government Documents Department
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Gaseous phase coal surface modification

Description: In this report, we present an improved, feasible and potentially cost effective method of cleaning and beneficiating ultrafine coal. Increased mechanization of mining methods and the need towards depyritization, and demineralization have led to an increase in the quantity of coal fines generated in recent times. For example, the amount of {minus}100 mesh coal occurring in coal preparation plant feeds now typically varies from 5 to 25% of the total feed. Environmental constraints coupled with th… more
Date: May 7, 1992
Creator: Okoh, J.M.; Pinion, J. & Thiensatit, S.
Partner: UNT Libraries Government Documents Department
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Sulfur-isotope separation by distillation

Description: Sulfur-isotope separation by low-temperature distillation of hydrogen sulfide was studied in an 8-m, 25-mm diameter distillation column. Column temperature was controlled by a propane-propylene heat pipe. Column packing HETP was measured using nitric oxide in the column. The column was operated at pressures from 45 to 125 kPa. The relative volatility of S-32 vs. S-34 varied from 1.0008 to 1.0014.
Date: January 1, 1982
Creator: Mills, T.R.
Partner: UNT Libraries Government Documents Department
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Synthesis gas solubility in Fischer-Tropsch slurry: Final report

Description: The objective is to investigate the phase equilibrium behavior of synthesis gases and products in a Fischer-Tropsch slurry reactor. A semi-flow apparatus has been designed and constructed for this purpose. Measurements have been made for hydrogen, cabon monoxide, methane, ethane, ethylene, and carbon dioxide in a heavy n-paraffin at temperatures from 100 to 300)degree)C and pressures 10 to 50 atm. Three n-paraffin waxes: n-eicosane (n-C/sub 20/), n-octacosane )n-C/sub 28/), and n-hexatriacontan… more
Date: January 1, 1988
Creator: Chao, K.C. & Lin, H.M.
Partner: UNT Libraries Government Documents Department
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Oxygen/steam gasification of wood

Description: Yields from fixed-bed gasification of stoker fuel, pressed planar shavings, are presented for air/steam operation and oxygen/steam operation at four different compositions. The wood carbon distributes between gas products and liquid products in the respective ranges of 75 to 80 wt% and 20 to 25 wt%. The cold gas efficiencies, defined as the combustible energy in the gas divided by the heat of combustion of the wood, were 60% for operation with an air-to-steam weight ratio of 10, 52%, 61%, 59%, … more
Date: April 1, 1980
Creator: Mudge, L.K.; Ham, D.G.; Weber, S.L. & Mitchell, D.H.
Partner: UNT Libraries Government Documents Department
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Diosmacycloalkanes as models for the formation of hydrocarbons from surface methylenes

Description: We are making progress on our investigation of the mechanism of olefin exchange with Os{sub 2}(C{sub 2}H{sub 4})(CO){sub 8}. We are probing this system by kinetic study of the reaction of Os{sub 2}(C{sub 2}H{sub 4})(CO){sub 8} with butyl acrylate (BA) under various pressures of ethylene.
Date: May 1, 1992
Creator: Norton, J.R.
Partner: UNT Libraries Government Documents Department
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Combustion-turbulence interaction in the turbulent boundary layer over a hot surface

Description: The turbulence-combustion interaction in a reacting turbulent boundary layer over a heated flat plate was studied. Ethylene/air mixture with equivalence ratio of 0.35 was used. The free stream velocity was 10.5 m/s and the wall temperature was 1250/sup 0/K. Combustion structures visualization was provided by high-speed schlieren photographs. Fluid density statistics were deduced from Rayleigh scattering intensity measurements. A single-component laser Doppler velocimetry system was used to obta… more
Date: January 1, 1982
Creator: Ng, T.T.; Cheng, R.K.; Robben, F. & Talbot, L.
Partner: UNT Libraries Government Documents Department
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Stereospecificity and physiology of co-oxidative production of chemicals by methanotrophic bacteria. [Methane monooxygenase:a2]

Description: Methanotrophic bacteria can use methane as a sole source of carbon and energy. The enzyme responsible for the oxidation of methane in these organisms, methane monooxygenase, is also able to biotransform a number of substrates into industrially important chemicals. One such example is the oxidation of propylene to propylene oxide. Several strains of mesophilic and thermophilic methanotrophs have been tested for their ability to produce propylene oxide with formate, methanol, and methane as the c… more
Date: January 1, 1991
Creator: Kelley, R. L.; Hoefer, D. E.; Conrad, J. R.; Srivastava, V. J. & Akin, C.
Partner: UNT Libraries Government Documents Department
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Site Characterization Program at the Radioactive Waste Management Complex of the Idaho National Engineering Laboratory

Description: The Radioactive Waste Management Complex (RWMC) Site Characterization Program is a continuation of the Subsurface Investigation Program (SIP). The scope of the SIP has broadened in response to the results of past work that identified hazardous as well as radionuclide contaminants in the subsurface environment and in response to the need to meet regulatory requirements. Two deep boreholes were cored at the RWMC during FY-1988. Selected sediment samples were submitted for Appendix IX of 40 CFR Pa… more
Date: July 1, 1989
Creator: McElroy, D. L.; Rawson, S. A.; Hubbell, J. M.; Minkin, S. C.; Baca, R. G.; Vigil, M. J. et al.
Partner: UNT Libraries Government Documents Department
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Polyketones and polysulfones for conservation in the ethylene polymer industry. Progress report No. 6, July-September 1979

Description: The characterization study on ethylene-CO (Et-CO) copolymers was concluded. The copolymers were prepared at various levels of CO composition, and with several methods loss of catalysis, including free-radical, metallic, and /sup 60/Co irradiation. Et-CO copolymers exhibit crystallinity related to the alternating polyketone structure which increasees logarithmically with CO content over the range 28% to 49% CO. The melting point increases in essentially the same manner as crystallinity. The stru… more
Date: January 1, 1980
Creator: Steinberg, M.; Johnson, R.; Elling, D.; Cordes, W. & Goodman, D.
Partner: UNT Libraries Government Documents Department
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