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Low-severity catalytic two-stage liquefaction process: Illinois coal conceptual commercial plant design and economics
Hydrocarbon Research, Inc. (HRI) is conducting a program for the United States Department of Energy (DOE) to evaluate a Catalytic Two-Stage Liquefaction (CTSL) Process. This program which runs through 1987, is a continuation of an earlier DOE sponsored program (1983--1985) at HRI to develop a new technology concept for CTSL. The earlier program included bench-scale testing of improved operating conditions for the CTSL Process on Illinois No. 6 bituminous coal and Wyoming sub-bituminous coal, and engineering screening studies to identify the economic incentive for CTSL over the single-stage H-Coal/reg sign/ Process for Illinois No. 6 coal. In the current program these engineering screening studies are extended to deep-cleaned Illinois coal and use of heavy recycle. The results from this comparison will be used as a guide for future experiments with respect to selection of coal feedstocks and areas for further process optimization. A preliminary design for CTSL of Illinois deep-cleaned coal was developed based on demonstrated bench-scale performance in Run No. 227-47(I-27), and from HRI's design experience on the Breckinridge Project and H-Coal/reg sign/ Process pilot plant operations at Catlettsburg. Complete conceptual commercial plant designs were developed for a grassroots facility using HRI's Process Planning Model. Product costs were calculated …
Date:
September 1, 1988
Creator:
Abrams, L. M.; Comolli, A. G.; Popper, G. A.; Wang, C. & Wilson, G.
Object Type:
Report
System:
The UNT Digital Library
EXERT and TEAM21: Partnerships for Professional Development
This article discusses the process of developing professional development programs for educational leadership in response to the 1984 Texas Education Reform Bill, also known as House Bill 72.
Date:
September 1, 1988
Creator:
Adkison, Judith A.; Camp, William E. & Meeks, Bruce
Object Type:
Article
System:
The UNT Digital Library
The Odem-Edroy Times (Odem, Tex.), Vol. 39, No. 35, Ed. 1 Thursday, September 1, 1988
Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.
Date:
September 1, 1988
Creator:
Aguilar, Rebecca & Hall, Page
Object Type:
Newspaper
System:
The Portal to Texas History
In situ ion irradiation/implantation studies in the HVEM-Tandem Facility at Argonne National Laboratory
The HVEM-Tandem User Facility at Argonne National Laboratory interfaces two ion accelerators, a 2 MV tandem accelerator and a 650 kV ion implanter, to a 1.2 MV high voltage electron microscope. This combination allows experiments involving simultaneous ion irradiation/ion implantation, electron irradiation and electron microscopy/electron diffraction to be performed. In addition the availability of a variety of microscope sample holders permits these as well as other types of in situ experiments to be performed at temperatures ranging from 10-1300 K, with the sample in a stressed state or with simultaneous determination of electrical resistivity of the specimen. This paper summarizes the details of the Facility which are relevant to simultaneous ion beam material modification and electron microscopy, presents several current applications and briefly describes the straightforward mechanism for potential users to access this US Department of Energy supported facility. 7 refs., 1 fig., 1 tab.
Date:
September 1, 1988
Creator:
Allen, C. W.; Funk, L. L.; Ryan, E. A. & Taylor, A.
Object Type:
Article
System:
The UNT Digital Library
Relativistic klystron research for linear colliders
Relativistic klystrons are being developed as a power source for high gradient accelerator applications which include large linear electron-positron colliders, compact accelerators, and FEL sources. We have attained 200 MW peak power at 11.4 GHz from a relativistic klystron, and 140 MV/m longitudinal gradient in a short 11.4 GHz accelerator section. We report here on the design of our relativistic klystrons, the results of our experiments so far, and some of our plans for the near future. 5 refs., 9 figs., 1 tab.
Date:
September 1, 1988
Creator:
Allen, M. A.; Callin, R. S.; Deruyter, H.; Eppley, K. R.; Fant, K. S.; Fowkes, W. R. et al.
Object Type:
Article
System:
The UNT Digital Library
Pion production in relativistic collisions of nuclear drops
In a continuation of the long-standing effort of the nuclear physics community to model atomic nuclei as droplets of a specialized nuclear fluid, we have developed a hydrodynamic model for simulating the collisions of heavy nuclei at relativistic speeds. Our model couples ideal relativistic hydrodynamics with a new Monte Carlo treatment of dynamic pion production and tracking. The collective flow for low-energy (200 MeV/N) collisions predicted by this model compares favorably with results from earlier hydrodynamic calculations which used quite different numerical techniques. Our pion predictions at these lower energies appear to differ, however, from the experimental data on pion multiplicities. In this case of ultra-relativistic (200 GeV/N) collisions, our hydrodynamic model has produced baryonic matter distributions which are in reasonable agreement with recent experimental data. These results may shed some light on the sensitivity of relativistic collision data to the nuclear equation of state. 20 refs., 12 figs.
Date:
September 1, 1988
Creator:
Alonso, C. T.; Wilson, J. R.; McAbee, T. L. & Zingman, J. A.
Object Type:
Article
System:
The UNT Digital Library
A high energy neutral beam system for reactors
High energy neutral beams provide a promising method of heating and driving current in steady-state tokamak fusion reactors. As an example, we have made a conceptual design of a neutral beam system for current drive on the International Thermonuclear Experimental Reactor (ITER). The system, based on electrostatic acceleration of D/sup /minus// ions, can deliver up to 100 MW of 1.6 MeV D/sup 0/ neutrals through three ports. Radiation protection is provided by locating sensitive beamline components 35 to 50 m from the reactor. In an application to a 3300 MW power reactor, a system delivering 120 MW of 2-2.4 MeV deuterium beams assisted by 21 MW of lower hybrid wave power drives 25 MA and provides an adequate plasma power gain (Q = 24) for a commercial fusion power plant. 8 refs., 1 fig., 2 tabs.
Date:
September 1, 1988
Creator:
Anderson, O. A.; Chan, C. F.; Cooper, W. S.; Leung, K. N.; Lietzke, A. F.; Kim, C. H. et al.
Object Type:
Article
System:
The UNT Digital Library
A study of K/sup +/. -->. pi. /sup +/. nu. /bar /nu//
A description of the detector and of preliminary results of work in progress in its performance is presented here for an experiment to study the decay of K/sup +/ ..-->.. ..mu../sup +/..nu../bar /nu//. 4 refs., 12 figs., 1 tab.
Date:
September 1, 1988
Creator:
Atiya, M. S.; Chiang, I. H.; Frank, J. S.; Haggerty, J. S.; Ito, M.; Kycia, T. F. et al.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0380.0216]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Trifonia Macias, a student at Northeast High School, will be crowed Hispanic Queen."
Date:
September 1, 1988
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1094.0138]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Del City running back Chawn Robinson is hit by Midwest City's Terry Harpe (33) and Drew Christmon Thursday night."
Date:
September 1, 1988
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Rains County Leader (Emory, Tex.), Vol. 101, No. 13, Ed. 1 Thursday, September 1, 1988
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
September 1, 1988
Creator:
Becknell, Kathleen Hill
Object Type:
Newspaper
System:
The Portal to Texas History
Methods to improve routine bioassay monitoring for freshly separated, poorly transported plutonium
Several human cases involving inhalation of plutonium oxide at Hanford have shown clearance half-times from the lung that are much longer than the 500-day half-time recommended for class Y plutonium in Publication 30 of the International Commission on Radiological Protection(ICRP). The more tenaciously retained material is referred to as super class Y plutonium. The ability to detect super class Y plutonium by current routine bioassay measurements is shown to be poor. Pacific Northwest Laboratory staff involved in the Hanford Internal Dosimetry Program investigated four methods to se if improvements in routine monitoring of workers for fresh super class Y plutonium are feasible. The methods were lung counting, urine sampling, fecal sampling, and use of diethylenetriaminepentaacetate (DTPA) to enhance urinary excretion. Use of DTPA was determined to be not feasible. Routine fecal sampling was found to be feasible but not recommended. Recommendations were made to improve the detection level for routine annual urinalysis and routine annual lung counting. 12 refs., 9 figs., 7 tabs.
Date:
September 1, 1988
Creator:
Bihl, D. E.; Lynch, T. P.; Carbaugh, E. H. & Sula, M. J.
Object Type:
Report
System:
The UNT Digital Library
Topics in b-physics
We discuss a few issues in the burgeoning field of physics of hadrons containing the b-quark. These include: A simple parameterization of the Kobayashi-Maskawa matrix featuring a triangle in the complex plane, a review of B/sub s/ and B/sub d/ mixing with special attention given to width-mixing and the CP-violating same-sign dilepton asymmetry, a discussion of the CP-violating decay B/sub d/ ..-->.. /psi/..pi../sup +/..pi../sup /minus//, and a discussion of Cp-violating rate asymmetries in the two-body decays ..lambda../sub b/ ..-->.. p..pi../sup /minus// and ..lambda../sub b/ ..-->.. pK/sup /minus//. The concluding discussion concerns generalizations beyond these specific topics. 22 refs., 6 figs.
Date:
September 1, 1988
Creator:
Bjorken, J. D.
Object Type:
Article
System:
The UNT Digital Library
The Colony Courier (The Colony, Tex.), Vol. 13, No. 2, Ed. 1 Thursday, September 1, 1988
Weekly newspaper from The Colony, Texas that includes local news along with advertising.
Date:
September 1, 1988
Creator:
Blalock, Jack
Object Type:
Newspaper
System:
The Portal to Texas History
The Kalina cycle and similar cycles for geothermal power production
This report contains a brief discussion of the mechanics of the Kalina cycle and ideas to extend the concept to other somewhat different cycles. A modified cycle which has a potential heat rejection advantage but little or no performance improvement is discussed. Then, the results of the application of the Kalina cycle and the modified cycle to a geothermal application (360/degree/F resource) are discussed. The results are compared with published results for the Kalina cycle with high temperature sources and estimates about performance at the geothermal temperatures. Finally, the conclusions of this scoping work are given along with recommendations of the direction of future work in this area. 11 refs., 4 figs., 1 tab.
Date:
September 1, 1988
Creator:
Bliem, C.J.
Object Type:
Report
System:
The UNT Digital Library
Faculty Recital: 1988-09-01 - School of Music Convocation
Access:
Use of this item is restricted to the UNT Community
Convocation, including a lecture and a faculty recital performed at the UNT School of Music Concert Hall.
Date:
September 1, 1988
Creator:
Blocker, Robert
Object Type:
Sound
System:
The UNT Digital Library
New topological invariants for non-abelian antisymmetric tensor fields from extended BRS algebra
Extended non-linear BRS and Gauge transformations containing Lie algebra cocycles, and acting on non-abelian antisymmetric tensor fields are constructed in the context of free differential algebras. New topological invariants are given in this framework. 6 refs.
Date:
September 1, 1988
Creator:
Boukraa, S.; Maillet, J.M. & Nijhoff, F.
Object Type:
Article
System:
The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 95, No. 15, Ed. 1 Thursday, September 1, 1988
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
September 1, 1988
Creator:
Bridges, G. Frank
Object Type:
Newspaper
System:
The Portal to Texas History
Special Applications RTG Technology Program: Thermoelectric module development summary report
The primary objective of the Special Applications thermoelectric module development program is to design, develop and demonstrate the performance of a module which provides a significant thermoelectric conversion efficiency improvement over available technology for low power, relatively high voltage RTGS intended for terrestrial applications. ``Low power`` can be construed as an RTG power output of 10 watts or less, and ``high voltage`` can be considered as a load voltage of 5 volts or greater. In particular, the effort is to improve the system efficiency characteristic of the state-of-the-art bismuth telluride-based RTG system (e.g., Five-Watt RTG and Half-Watt RTG), typically 3 to 4%, to the range of 6% or better. This increase in efficiency will also permit reductions in the weight and size of RTGs in the low power range.
Date:
September 1, 1988
Creator:
Brittain, W. M.
Object Type:
Report
System:
The UNT Digital Library
Nonlinear gyrokinetic Maxwell-Vlasov equations using magnetic coordinates
A gyrokinetic formalism using magnetic coordinates is used to derive self-consistent, nonlinear Maxwell-Vlasov equations that are suitable for particle simulation studies of finite-..beta.. tokamak microturbulence and its associated anomalous transport. The use of magnetic coordinates is an important feature of this work as it introduces the toroidal geometry naturally into our gyrokinetic formalism. The gyrokinetic formalism itself is based on the use of the Action-variational Lie perturbation method of Cary and Littlejohn, and preserves the Hamiltonian structure of the original Maxwell-Vlasov system. Previous nonlinear gyrokinetic sets of equations suitable for particle simulation analysis have considered either electrostatic and shear-Alfven perturbations in slab geometry, or electrostatic perturbations in toroidal geometry. In this present work, fully electromagnetic perturbations in toroidal geometry are considered. 26 refs.
Date:
September 1, 1988
Creator:
Brizard, A.
Object Type:
Report
System:
The UNT Digital Library
Nuclear effects in J//psi/ and lepton-pair production
High-energy processes in nuclear media provide important tests of quantum chromodynamics, since in principle one can use the nuclear environment to perturb and study the mechanisms involved in confinement and hadronization. In this talk several examples of nuclear effects in QCD will be discussed that affect the propagation and hadronization of quarks and gluons in nuclear matter. The issues include: possible signatures for quark-gluon plasma formation in heavy ion collisions, particularly J//psi/ production; hadronization due to jet coalescence; the limits of validity of QCD factorization formulae due to initial- and final-state interactions; formation zone physics; shadowing of the quark and gluon structure functions of nuclei; and color transparency in hard quasielastic reactions inside of nuclei. 29 refs., 4 figs.
Date:
September 1, 1988
Creator:
Brodsky, Stanley J.
Object Type:
Article
System:
The UNT Digital Library
Nuclear waste treatment program: Annual report for FY 1987
Two of the US Department of Energy's (DOE) nuclear waste management-related goals are to ensure that waste management is not an obstacle to the further development of light-water reactors and the closure of the nuclear fuel cycle and to fulfill its institutional responsibility for providing safe storage and disposal of existing and future nuclear wastes. As part of its approach to achieving these goals, the Office of Remedial Action and Waste Technology of DOE established what is now called the Nuclear Waste Treatment Program (NWTP) at the Pacific Northwest Laboratory during the second half of FY 1982. To support DOE's attainment of its goals, the NWTP is to provide technology necessary for the design and operation of nuclear waste treatment facilities by commercial enterprises as part of a licensed waste management system and problem-specific treatment approaches, waste form and treatment process adaptations, equipment designs, and trouble-shooting assistance, as required to treat existing wastes. This annual report describes progress during FY 1987 towards meeting these two objectives. 24 refs., 59 figs., 24 tabs.
Date:
September 1, 1988
Creator:
Brouns, R. A. & Powell, J. A. (comps.)
Object Type:
Report
System:
The UNT Digital Library
LFCM vitrification technology: Quarterly progress report, July-September 1987
This report describes the progress in developing, testing, applying and documenting liquid-fed ceramic melter vitrification technology. Progress in the following technical subject areas during the fourth quarter of FY 1987 is discussed: melting process chemistry and glass development, feed preparation and transfer systems, canister filling and handling systems, and process/product modeling and control.
Date:
September 1, 1988
Creator:
Brouns, R. A.; Allen, C. R.; Powell, J. A.; Bates, S. O.; Bray, L. A.; Budden, M. J. et al.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 66, No. 262, Ed. 1 Thursday, September 1, 1988
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
September 1, 1988
Creator:
Brown, Leon
Object Type:
Newspaper
System:
The Portal to Texas History