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Serial/Series Title
Texas Motor Vehicle Traffic Accident Summaries
55
Argonne National Laboratory Reports
34
Fiscal Year 1993
22
United States Geological Survey Reports
18
U.S. Geological Survey bulletin
15
Summary of All Reported Accidents in Rural Areas of Texas
14
Summary of All Reported Accidents in the State of Texas
14
Fiscal Year 1992
13
Texas Real Estate Center Trends
12
Background paper
11
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8,201 Matching Results
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Analysis, scientific computing and fundamental studies in fluid mechanics. Summary report number 16, April 1, 1992--March 31, 1993
Summaries are given of the progress on each of the following research projects: (1) vortex dynamics, vortical states and turbulence; (2) vortical states for plane Couette flow; (3) homotopy methods for nonsymmetrical eigenproblems; (4) the Recursive Projection Method (RPM); (5) axisymmetric flow with swirl; and (6) pattern selection in solidifying systems.
Date:
December 31, 1993
Creator:
unknown
System:
The UNT Digital Library
Analytical laboratory and mobile sampling platform. Progress report, October 1, 1993--December 31, 1993
Three compounds, trifluoromethane (CHF{sub 3}), 1,1,1,2- tetrafluoroethane (TFA), and octafluoropropane (C{sub 3}H{sub 8}), were compared to SF{sub 6} for use as vapor phase tracers. Dichlorodifluoromethane was also used once for comparison. Experiments were done to test sorption/degradation in a medium colored tuff with (saturated) and without water. A gas chromatograph with an electron capture detector was used. Detection limits were determined.
Date:
December 31, 1993
Creator:
Stetzenbach, K.
System:
The UNT Digital Library
Analyzing organic sulfur in coal/char: Integrated mild degradation/XANES methods. [Quarterly] technical report, September 1--November 30, 1993
To address the acid rain problem effort has been expended on finding methods for the removal of sulfur from coal. Despite these efforts organic sulfur has proven very difficult to remove. Perhaps the single most important reason for this is the fact that the organic sulfur in coal remains very poorly characterized. Thus, objective of this study is to combine advanced nondestructive and advanced destructive methods of sulfur analysis for characterization of the organic sulfur in Illinois Basin coals and mild gasification chars derived from them. Thus, the study combines selective oxidation strategies, analytical pyrolysis, and sulfur X-ray Absorption Near Edge Structure Spectroscopy (XANES) analysis. In, addition identical samples are to be provided for W-Band EPR spectroscopy. During the previous quarter ten coal derived samples have been prepared with the sulfur content varing from 0.77 to 4.4%. Each sample has been submitted for XANES analysis, W-Band EPR analysis, and analytical pyrolysis. A mild gasification reactor has been designed and is undergoing final assembly.
Date:
December 31, 1993
Creator:
Palmer, S. R. & Huffman, G. P.
System:
The UNT Digital Library
Aniline hydrogenolysis on the Pt(111) single crystal surface: Mechanisms for C-N bond activation
Hydrogenolysis of C-N bond on transition metals is a crucial step in hydrodenitrogenation (HDN) reactions. Despite the overall complexity of HDN processes, the details of important surface reactions can be characterized using model reactions of organonitrogen compounds on single crystal model catalysts. The structure and reactivity of well characterized aniline monolayers on the Pt(111) surface both in vacuum and in the presence of hydrogen is discussed here. Adsorption and reactions of aniline were studied by Gland and Somorjai on the Pt(111) and Pt(100) surfaces, and more recently by Benziger`s group on the Ni(111) and Ni(100) surfaces. On both Pt and Ni surfaces, aniline {pi} bonds through the aromatic ring with its ring parallel to the substrate surface.
Date:
December 31, 1993
Creator:
Huang, S. X.; Gland, J. L. & Fischer, D. A.
System:
The UNT Digital Library
Annual site environmental report for calendar year 1993
The Western Area Power Administration (Western) has established a formal environmental protection, auditing, monitoring, and planning program that has been in effect since 1978. The significant environmental projects and issues Western was involved with in 1993 are discussed in this annual site environmental report. It is written to show the nature and effectiveness of the environmental protection program. The Department of Energy Order 5400.1, Chapter 2.4, requires the preparation of an annual site environmental report. Because Western has facilities located in 15 States, this report addresses the environmental activities in all the facilities as one ``site``. In 1993, Western provided power to more than 600 wholesale power customers consisting of cooperatives, municipalities, public utility districts, investor-owned utilities, federal and state agencies, irrigation districts, and project use customers. The wholesale power customers, in turn, provide service to millions of retail consumers in the States of California, Nevada, Montana, Arizona, Utah, New Mexico, Texas, North Dakota, South Dakota, Iowa, Colorado, Wyoming, Minnesota, Nebraska, and Kansas.
Date:
December 31, 1993
Creator:
unknown
System:
The UNT Digital Library
Apparent temperature versus true temperature of silicon crystals as a function of their thickness using infrared measurements
The very high intensity x-ray beams that will be present at the Advanced Photon Source and other third generation synchrotron sources will require that the first optical element in the beamline and, possibly, the second optical element as well, be cooled to remove the heat deposited by the x-ray beam. In many of the beamlines this heat will be in the 1 to 5 kW range, and any failure of the cooling system will require a quick response from safety control circuits to shut off the beam before damage is done to the optical element. In many cases, this first optical element will be a silicon diffraction crystal. Viewing the surface of objects subjected to high heat fluxes with an infrared camera or infrared sensor has proved to be a very effective method for monitoring the magnitude and distribution of surface temperatures on the object. This approach has been quite useful in studies of cooling silicon crystals in monochromators subject to high heat loads. The main drawback to this method is that single crystals of silicon are partially transparent to the infrared radiation monitored in most infrared cameras. This means that the infrared radiation emitted from the surface contains a …
Date:
December 31, 1993
Creator:
Smither, R. K. & Fernandez, P. B.
System:
The UNT Digital Library
Application of artificial intelligence to reservoir characterization: An interdisciplinary approach. [Quarterly progress report], October 1--December 30, 1993
This basis of this research is to apply novel techniques from Artificial Intelligence and Expert Systems in capturing, integrating and articulating key knowledge from geology, geostatistics, and petroleum engineering to develop accurate descriptions of petroleum reservoirs. The ultimate goal is to design and implement a single powerful expert system for use by small producers and independents to efficiently exploit reservoirs. The first task under each of the concurrent phases of developing large-scale and small-scale reservoir descriptions is to identify the main knowledge sources. This task involves the identification of the critical variables that have an impact on large-scale heterogeneities. Because of the interdisciplinary nature of the project, we have had to develop a common vocabulary among the researchers to accomplish this identification task of Phases I and II. It was necessary for the computer science faculty and students to familiarize themselves with the information processed in geology geostatistics, and petroleum engineering. In addition, the geology and petroleum engineering researchers required instruction in the process of building expert systems. As part of the simulation task of Phase I and II, we have decomposed the design of the expert system into smaller component parts to get a clearer picture of what expert …
Date:
December 31, 1993
Creator:
Gamble, R. F.; Kerr, D. R.; Thompson, L. G. & Shenoi, S.
System:
The UNT Digital Library
Application of hysteresis modeling to magnetic techniques for monitoring biaxial stress
A probe, consisting of two excitation coils and a detection coil wrapped around a core with a Hall probe between the pole pieces, has been used to measure indirectly the influence of biaxial stress on the magnetic properties of a ferromagnetic specimen, in this case annealed SAE-4130 steel. Properties measured indirectly included remanence, coercivity, and first, third and fifth harmonic amplitudes. The properties were extracted from the voltage measured across the detection coil and incorporate the magnetic influence of the soft iron core, but with the effect of air gap variation between pole piece and sample kept to a controlled range. Results were compared to a micromagnetic model for the effect of biaxial stress on hysteresis and on magnetic properties. The micromagnetic model is a modified version of a model previously employed by Schneider et al. The experimental remanence variation due to biaxial stress compared very well to the predictions of the model. Furthermore, the model predict,s and experiment bears out, that the remanence with the field along one stress axis minus the remanence with the field along the other stress axis falls in a straight-line band of values when plotted against the difference of the two stresses. This suggests …
Date:
December 31, 1993
Creator:
Sablik, M.J.; Burkhardt, G.L. & Kwun, H.
System:
The UNT Digital Library
Application of the Resonating Hartree-Fock Theory to the Lipkin Model
In order to make clear essential features of the resonating Hartree-Fock (Res HF) theory for a Fermion system with large quantum fluctuations and to show its superiority over the usual HF theory, the authors apply it to the exactly solvable Lipkin model. They use a new direct optimization algorithm to optimize orbitals in nonorthogonal Slater determinants (S-dets) in a Res HF wave function. For the sake of simplicity, they assume a Res HF wave function to be superposed by two S-dets {vert_bar}g{sub 1}> {vert_bar}g{sub 2}> which give corresponding two local energy minima of monopole deformation. They make the self-consistent Res HF calculation so as to minimize the energy functional including up to the second order variation. The Res HF ground state generated with only two S-dets brings the ground state energy very near to the exact one and then explains most of the ground state correlation energy.
Date:
December 31, 1993
Creator:
Nishiyama, Seiya
System:
The UNT Digital Library
Applications of the EBR-II Probabilistic Risk Assessment
A Probabilistic Risk Assessment (PRA) of the Experimental Breeder Reactor 11 (EBR-11), a Department of Energy (DOE) Category A research reactor, has recently been completed at Argonne National Laboratory (ANL), and has been performed with close collaboration between PRA analysts and engineering and operations staff. A product of this Involvement of plant personnel has been a excellent acceptance of the PRA as a tool, which has already resulted In a variety of applications of the EBR-11 PRA. The EBR-11 has been used in support of plant hardware and procedure modifications and In new system design work. A new application in support of the refueling safety analysis will be completed in the near future.
Date:
December 31, 1993
Creator:
Roglans, J.: Ragland, W. A. & Hill, D. J.
System:
The UNT Digital Library
Archaeological investigations at a toolstone source area and temporary camp: Sample Unit 19-25, Nevada Test Site, Nye County, Nevada. Technical report No. 77
Archaeological investigations were initiated at Sample Unit 19--25 to retrieve information concerning settlement and subsistence data on the aboriginal hunter and gatherers in the area. Studies included collection and mapping of 35.4 acres at site 26NY1408 and excavation and mapping of 0.02 acres at site 26NY7847. Cultural resources include two rock and brush structures and associated caches and a large lithic toolstone source area and lithic artifact scatter. Temporally diagnostic artifacts indicate periodic use throughout the last 12,000 years; however dates associated with projectile points indicate most use was in the Middle and Late Archaic. Radiocarbon dates from the rock and brush structures at site 26NY7847 indicate a construction date of A.D. 1640 and repair between A.D. 1800 and 1950 for feature 1 and between A.D. 1330 and 1390 and repair at A.D. 1410 for feature 2. The dates associated with feature 2 place its construction significantly earlier than similar structures found elsewhere on Pahute Mesa. Activity areas appear to reflect temporary use of the area for procurement of available lithic and faunal resources and the manufacture of tools.
Date:
December 31, 1993
Creator:
Jones, R. C.; DuBarton, A.; Edwards, S.; Pippin, L. C. & Beck, C. M.
System:
The UNT Digital Library
Assessment of the PIUS physics and thermal-hydraulic experimental data bases
The PIUS reactor utilizes simplified, inherent, passive, or other innovative means to accomplish safety functions. Accordingly, the PIUS reactor is subject to the requirements of 10CFR52.47(b)(2)(i)(A). This regulation requires that the applicant adequately demonstrate the performance of each safety feature, interdependent effects among the safety features, and a sufficient data base on the safety features of the design to assess the analytical tools used for safety analysis. Los Alamos has assessed the quality and completeness of the existing and planned data bases used by Asea Brown Boveri to validate its safety analysis codes and other relevant data bases. Only a limited data base of separate effect and integral tests exist at present. This data base is not adequate to fulfill the requirements of 10CFR52.47(b)(2)(i)(A). Asea Brown Boveri has stated that it plans to conduct more separate effect and integral test programs. If appropriately designed and conducted, these test programs have the potential to satisfy most of the data base requirements of 10CFR52.47(b)(2)(i)(A) and remedy most of the deficiencies of the currently existing combined data base. However, the most important physical processes in PIUS are related to reactor shutdown because the PIUS reactor does not contain rodded shutdown and control systems. …
Date:
December 31, 1993
Creator:
Boyack, B. E.
System:
The UNT Digital Library
Atmospheric gas. Annual report, August 1, 1992--July 31, 1993
This proposal requests support for a third year of funding to complete a modelling study of processes controlling the distribution and waters at an ocean location with detailed background measurements of biological physical properties. We determined concentrations of the gases O{sub 2}, Ar, N{sub 2}, and the stable isotope ratio ({sup 18}O/{sup 16}O) of molecular oxygen in surface waters at Station ALOHA in conjunction with the Global Ocean Flux Study (GOFS) Hawaiian Ocean Time-series project during the years 1989--90 and 1992--93, the latter currently being completed. Chemical tracers have been incorporated into an existing ocean mixed-layer model to simulate the physical processes controlling the distribution and seasonal cycle of dissolved gases in the upper ocean. The broad background of concurrent chemical, physical, and biological measurements at station ALOHA provides enough redundancy of ``ground truth`` to assess the model`s accuracy. Biological oxygen production estimated from modeled chemical tracers agrees with estimates based on measurements of carbon fluxes into the deep ocean and nitrate fluxes into the upper ocean during 1989--90, verifying for the first time the utility of chemical tracers for determining biological fluxes in the ocean. The results suggest that in the euphoric zone the net biological O{sub 2} production …
Date:
December 31, 1993
Creator:
Schudlich, R. & Emerson, S.
System:
The UNT Digital Library
[Atomic and electronic structure of metals and alloys: Clean surfaces and chemisorbed molecules]
Ultrapure Tb was further purified and surface cleaning procedures developed for basal plane and (11{bar 2}0) surface of Tb. Structure of both surfaces was found to be relaxed: (0001) is contracted by 3.9% in the first and expanded by 1.4% in second interlayer spacing; (11{bar 2}0) is contracted by 3.3% in first layer and shows a change in registry. Thin films of Gd, Tb, Dy, Ho, and Er were grown on W{l_brace}110{r_brace} substrate in ultrahigh vacuum. Studies have been carried out on epitaxial systems involving Cu, Fe and Mn on Fe and Pt, Cu, and Pd substrates, respectively; new metastable crystalline phases have been found. Studies of possible ferromagnetism in 4d elements (Rh, Ru) and relativistic effects in electron band structure of Cu{l_brace}111{r_brace} have been completed and published. Plans for the following year are given.
Date:
December 31, 1993
Creator:
unknown
System:
The UNT Digital Library
Atomic and electronic structure of metals and alloys: Rare earths, ultrathin films and surface alloys. Final report, [October 1, 1988--December 31, 1993]
The project has been productive: 47 refereed publications in about 5 years. While confined to the area of surfaces and thin films, the project has covered a wide range of physical properties and different materials: rare earths, bulk and surface alloys, metal surfaces, magnetism, and (especially) atomic and electronic structure of ultrathin films. Notable achievements include quantitative studies of atomic structure of clean rare-earth surfaces: Tb(0001), Tb(11{ovr 2}0), Gd(0001), and Gd(11{ovr 2}0). Surface alloys studied included Cu{l_brace}001{r_brace}c(2 {times} 2)-Au and Cu{l_brace}001{r_brace}c(2 {times} 2)-Pd. The most important achievement of the project lies in the application of quantitative low-energy electron diffraction to ultrathin films, particularly magnetic metals on nonmagnetic substrates (e.g., Fe on Ag{l_brace}001{r_brace}, etc.) (No data given.)
Date:
December 31, 1993
Creator:
unknown
System:
The UNT Digital Library
Attrition and Changes in Size Distribution of Lime Sorbents During Fluidization in a Circulating Fluidized Bed Absorber. Double Quarterly Report, January 1--August 31, 1993
The experimental data of lime sorbent attrition obtained from attriton tests in a circulating fluidized bed absorber (CFBA) are represented. The results are interpreted as both the weight-based attrition rate and size-based attrition rate. The weight-based attrition rate constants are obtained from a modified second-order attrition model, incorporating a minimum fluidization weight, W{sub min}, and excess velocity. Furthermore, this minimum fluidization weight, or W{sub min} was found to be a function of both particle size and velocity. A plot of the natural log of the overall weight-based attrition rate constants (ln K{sub a}) for Lime 1 (903 MMD) at superficial gas velocities of 2 m/s, 2.35 m/s, and 2.69 m/s and for Lime 2 (1764 MMD) at superficial gas velocities of 2 m/s, 3 m/s, 4 m/s and 5 m/s versus the energy term, 1/(U-U{sub mf}){sup 2}, yielded a linear relationship. And, a regression coefficient of 0.9386 for the linear regression confirms that K{sub a} may be expressed in Arrhenius form. In addition, an unsteady state population model is represented to predict the changes in size distribution of bed materials during fluidization. The unsteady state population model was verified experimentally and the solid size distribution predicted by the model agreed …
Date:
December 31, 1993
Creator:
Lee, Sang-Kwun; Keener, T. C.; Cook, J. L. & Khang, Soon Jai
System:
The UNT Digital Library
An attrition-resistant zinc titanate sorbent for sulfur. Final technical report, September 1, 1992--August 31, 1993
In the continuing search for good sorbent materials to remove sulfur for hot, coal-derived gases, zinc titanate sorbents have shown great promise. The objective of this project was to extend the work of prior investigators by developing improvements in the compressive strength and, therefore, the cycle life of these sorbents while maintaining good chemical reactivity. Fifteen formulations were prepared and evaluated. The best properties were obtained by blending relatively course (two micron) ZnO and TiO{sub 2} powders to obtain a composition of 50%Zn{sub 2}TiO{sub 4}-50%TiO{sub 2}. When sintered at 1000{degrees}C, it had a compressive strength of 28 MPa or 147 N/mm, which is four times higher than values obtained by prior investigators. It also performed well in thermogravimetric analysis measurements of reactivity, both in screening tests and in simulated coal gas.
Date:
December 31, 1993
Creator:
Swisher, J. H.
System:
The UNT Digital Library
Automated remote monitoring of toxic gases with diode-laser-based sensor systems
There is a growing need for compact sensor systems that provide reliable and automated monitoring of toxic gases and pollutants. Near infrared (NIR) diode lasers, originally developed for the communications industry, have the necessary reliability for use in such automated sensor systems. The authors combine NTR lasers with its patented line-locked absorption techniques to create the DiRTiGAS family of automated sensor systems for continuous remote monitoring of gas concentration. A broad variety of small polyatomic gases can be detected using GaAs-based diode lasers. They report here tests on NO{sub 2}, O{sub 2}, NH{sub 3}, C{sub 2}H{sub 2}, and CO{sub 2} with two source modules operating at 760 and 1,540 nm, respectively. The DiRTiGAS family of remote sensors uses modular components which can be assembled in two basic configurations for process control and ambient air monitoring. The fiber-optic configuration uses a central control unit linked by a fiberoptic network to remote sensor heads. The long-path configuration uses a similar control unit and a distant retroreflective target to monitor the concentration in the intervening distances. A fieldable prototype longpath unit, and a fiber-optic head has been developed for process water vapor monitoring in exhaust stacks at temperatures up to 650 C. This …
Date:
December 31, 1993
Creator:
Goldstein, N.; Lee, J. & Bien, F.
System:
The UNT Digital Library
Base program on energy related research. Quarterly technical progress report, August--October 1993
Progress reports are presented for the following area of studies: oil and gas; advanced systems applications; environmental technologies; and applied energy science. Oil and gas includes the following tasks: CROW{sup TM} process modeling; and miscible-immiscible gas injection processes. Advanced systems applications covers: development and optimization of a process for the production of a premium solid fuel from Western U.S. coals; development of an on-line alkali monitoring probe; optimization of the recycle oil process for Eastern oil shale; and process support and development. Tasks in the environmental technologies are: solid waste management; and remediation of contaminated soils. Applied energy science covers heavy oil/plastics co-processing.
Date:
December 31, 1993
Creator:
unknown
System:
The UNT Digital Library
Bat habitat research. Final technical report
This progress report describes activities over the current reporting period to characterize the habitats of bats on the INEL. Research tasks are entitled Monitoring bat habitation of caves on the INEL to determine species present, numbers, and seasons of use; Monitor bat use of man-made ponds at the INEL to determine species present and rates of use of these waters; If the Big Lost River is flowing on the INEL and/or if the Big Lost River sinks contain water, determine species present, numbers and seasons of use; Determine the habitat requirement of Townsend`s big-eared bats, including the microclimate of caves containing Townsend`s big-eared bats as compared to other caves that do not contain bats; Determine and describe an economical and efficient bat census technique to be used periodically by INEL scientists to determine the status of bats on the INEL; and Provide a suggestive management and protective plan for bat species on the INEL that might, in the future, be added to the endangered and sensitive list;
Date:
December 31, 1993
Creator:
Keller, B. L.; Bosworth, W. R. & Doering, R. W.
System:
The UNT Digital Library
Beat wave current drive experiment on the Davis Diverted Tokamak (DDT). Final report
The beatwave current drive experiment is summarized. The first phase of the experiment was the construction of the microwave sources and the diagnostics needed to demonstrate the beat wave effects, i.e. the measurement of the electrostatic plasma wave produced by the beating of two high intensity electromagnetic waves. In order to keep the cost of the experiments to a minimum, a low density filament plasma source (10{sup 8}) to (10{sup 10} particles cm{sup {minus}3}) was employed and the magnetic field in the toroidal plasma was produced by a dc power supply.
Date:
December 31, 1993
Creator:
Hwang, D. Q.; Horton, R. D. & Rogers, J. H.
System:
The UNT Digital Library
Behavior of sulfur and chlorine in coal during combustion and boiler corrosion. Final technical report, 1 September, 1992--31 August, 1993
The goals of this project are to investigate the behavior of sulfur and chlorine during pyrolysis and combustion of Illinois coals, the chemistry and mineralogy of boiler deposits, the effects of combustion gases on boiler materials, and remedial measures to reduce the sulfur and chlorine compounds in combustion gases. Replicate determinations of chlorine and sulfur evolution during coal pyrolysis-gas combustion were conducted using a pyrolysis apparatus in conjunction with a quadrupole gas analyzer. HCl is the only gaseous chlorine species measured in combustion gases. Pyrolysis of coal IBC-109 spiked with NaCl solution shows a strong peak of HCl evolution above 700C. The absence of this peak during pyrolysis of Illinois coal indicates that little chlorine in Illinois coal occurs in the NaCl form. Evolution of sulfur during coal pyrolysis was studied; the sulfur evolution profile may be explained by the sulfur forms in coal. To determine the fate of sulfur and chlorine during combustion, a set of six samples of boiler deposits from superheater and reheater tubes of an Illinois power plant was investigated. Scanning electron microscopy shows microscopic calcium sulfate droplets on cenospheres. Superheater deposits are high in mullite, hematite, and cristobalite, whereas a reheater deposit is enriched in …
Date:
December 31, 1993
Creator:
Chou, C. L.; Hackley, K. C.; Cao, J.; Moore, D. M.; Xu, J.; Ruch, R. R. et al.
System:
The UNT Digital Library
Bench-scale co-processing. Technical progress report No. 22, October 1, 1993--December 31, 1993
The major objective of this contract is to establish a database for the optimization of the co-processing concept by improving the effectiveness of the co-processing catalyst system. Two major mechanisms for improving the catalyst system are to be investigated: employment of more effective catalysts and utilization of improved catalytic environments. This report covers the period of October 1, 1993 to December 31, 1993. During this period work on Subtask 3.2.2, Improvement in Catalytic Environment, was carried out and the bench-scale co-processing pilot plant was operated in the co-current mode with product recycle and increased catalyst concentration. The project objective was to achieve 90+ % conversion of the 510{degrees}C+ non-distillables at 2800 psig. Currently work is on-going in a stirred autoclave at the same catalyst concentration as that in the runs reported here, and the results of these autoclave runs will be summarized in Technical Progress Report No. 23.
Date:
December 31, 1993
Creator:
Duttlinger, M. L. M.; Commisaris, S. E.; Davis, L. A.; Yurek, R. W.; Gatsis, J. G.; Roemisch, R. et al.
System:
The UNT Digital Library
Bench-scale co-processing. Technical progress reports No. 17--20, July 1, 1992--June 30, 1993
UOP`s second co-processing contract, DE-AC22-87PC79818, began in April 1988. The major objective of this contract is to establish a database for the optimization of the co-processing concept by improving the effectiveness of the co-processing catalyst system. Two major mechanisms for improving the catalyst system are to be investigated: employment of more effective catalysts and utilization of improved catalytic environments. These two mechanisms are defined in the contract Statement of Work under Task 3.2 as Subtask 3.2.1 and 3.2.2, respectively. This report covers a span of four quarters, starting from July 1, 1992 to June 30, 1993. During this period the project was in a hold. As explained below, a request was made to add more funds to the contract to investigate catalytic environment improvements. Most of the time during this four quarters was spent in preparation of the proposal, review of the proposal by PETC, and getting additional funding approved for the contract. No experimental work was carried out on any of the tasks of the contract during these four quarters. Prior to the period covered by this report, UOP had successfully completed Subtask 3.2.1 and identified a molybdenum-based catalyst that is highly active and effective in achieving improved co-processing …
Date:
December 31, 1993
Creator:
Gala, H. B.
System:
The UNT Digital Library