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Basic Reference Sources For Use by Congressional Offices: An Annotated Selection of Publications and Services (open access)

Basic Reference Sources For Use by Congressional Offices: An Annotated Selection of Publications and Services

This is an annotated guide to publications and other sources of information useful to Members of Congress and their staffs, covering congressional office management, the organization and operation of Congress, legislative responsibilities, services to constituents, and other duties of Congress.
Date: December 15, 1982
Creator: Barry, Rozanne M. & Ovenshire, Ruthann
System: The UNT Digital Library
Evaluation of the Beijing Instrument Factory GDB-44F photomultipler (open access)

Evaluation of the Beijing Instrument Factory GDB-44F photomultipler

Characteristics have been measured for the GDB-44F 2''-diameter photomultiplier. Some typical photomultiplier characteristics - such as gain, dark current, anode output current, transit and rise times as a function of voltage between anode and cathode, and photoelectron pulse-height spectrum, the quantum-efficiency and the single-electron transit time spread were measured. Descriptions of the measuring systems were also given.
Date: December 15, 1982
Creator: Young, E. & Lo, C.C.
System: The UNT Digital Library
Tests of a two-stage, axial-flow, two-phase turbine (open access)

Tests of a two-stage, axial-flow, two-phase turbine

A two-phase-flow turbine with two stages of axial-flow impulse rotors was tested with three different working-fluid mixtures at a shaft power of 30 kW. The turbine efficiency was 0.55 with nitrogen-and-water of 0.02 quality and 94 m/s velocity, 0.57 with Refrigerant 22 of 0.27 quality and 123 m/s velocity, and 0.30 with steam-and-water of 0.27 quality and 457 m/s velocity. The efficiencies with nitrogen-and-water and Refrigerant 22 were 86% of theoretical. At that fraction of theoretical, the efficiencies of optimized two-phase turbines would be in the low 60% range with organic working fluids and in the mid 50% range with steam-and-water. The recommended turbine design is a two-stage axial-flow impulse turbine followed by a rotary separator for discharge of separate liquid and gas streams and recovery of liquid pressure.
Date: December 15, 1982
Creator: Elliott, D.G.
System: The UNT Digital Library
Synthetic fuel aromaticity and staged combustion (open access)

Synthetic fuel aromaticity and staged combustion

Samples of middle and heavy SRC-II distillates were distilled into 50 C boiling point range fractions. These were characterized by measurements of their molecular weight, elemental analysis and basic nitrogen content and calculation of average molecular structures. The structures typically consisted of 1 to 3 aromatic rings fused to alicyclic rings with short, 1 to 3 carbon aliphatic side chains. The lower boiling fractions contained significant amounts (1 atom/molecule) of oxygen while the heavier fractions contained so few heteroatoms that they were essentially hydrocarbons. Laboratory scale oxidative-pyrolysis experiments were carried out at pyrolysis temperatures of 500 to 1100 C and oxygen concentrations from 0 to 100 percent of stoichiometry. Analysis of liquid products, collected in condensers cooled with liquid nitrogen showed that aromatization is a major reaction in the absence of oxygen. The oxygen-containing materials (phenolics) seem to be more resistant to thermal pyrolysis than unsubstituted aromatics. Nitrogen converts from basic to nonbasic forms at about 500 C. The nonbasic nitrogen is more stable and survives up to 700 C after which it is slowly removed. A recently constructed 50,000 Btu/hr staged combustor was used to study the chemistry of the nitrogen and aromatics. SRC II combustion was studied under …
Date: November 15, 1982
Creator: Longanbach, J. R.; Chan, L. K. & Levy, A.
System: The UNT Digital Library
Variation of the yield strength and strain-rate sensitivity exponent of type 21-6-9 stainless steel over a wide temperature range (open access)

Variation of the yield strength and strain-rate sensitivity exponent of type 21-6-9 stainless steel over a wide temperature range

The yield strength of solution-annealed 21-6-9 austenitic stainless steel was determined over a wider temperature range (-195 to 1100/sup 0/C) than has been previously reported. The most noteworthy characteristic of the variation of yield stress with temperature was the dramatic decrease in yield strength from -195/sup 0/C to 300/sup 0/C. The strain-rate sensitivity exponent, N, was determined using strain-rate change tests. A plot of N vs temperature showed that n dramatically increased at about 850/sup 0/C and that N is approximately independent of strain (structure). 3 figures.
Date: November 15, 1982
Creator: Kassner, M.E.
System: The UNT Digital Library
An e-p primer (open access)

An e-p primer

The basic formulas for kinematics and calculating yields of events for an e-p collider are presented, together with typical results.
Date: October 15, 1982
Creator: White, D. Hywel
System: The UNT Digital Library
Electoral Votes by State: Changes Resulting from the 1980 Census (open access)

Electoral Votes by State: Changes Resulting from the 1980 Census

This report presents a chart and a U.S. map describing the electoral votes by state and the changes resulted from the 1980 census.
Date: October 15, 1982
Creator: Gorman, Joseph B.
System: The UNT Digital Library
Theoretical studies of chemisorption on transition-metal surfaces: interaction of hydrogen with titanium. Final report, June 1, 1977-August 31, 1982 (open access)

Theoretical studies of chemisorption on transition-metal surfaces: interaction of hydrogen with titanium. Final report, June 1, 1977-August 31, 1982

The research concerns the theory of chemisorption of molecules on solid surfaces: the development of a general formalism, and specific applications to the hydrogen-titanium system. The objective is to develop a suitable formalism for treating electronic interactions at an ab initio level when both localized and delocalized interactions occur, as in the case of molecular adsorption on a metallic surface. For H/sub 2/ and CO adsorption on titanium, the goal is a determination of the energetics of adsorption and molecular dissociation as a function of surface site. The first phase of the research concerned primarily the formalism and the second the modeling of the titanium surface, preparatory to the chemisorption studies. The final phase of the research has dealt with applications of the chemisorption theory to several systems: H/sub 2/ on Ti(0001), CO on Ti(0001), interstitial H in titanium, H on Cu(100) and H/sub 2/ dissociation on Cu(100). Work on stepped copper surfaces and CO interactions with Ni(100) was also begun. With the exception of the latter two projects now underway, the results of all studies have been published. Brief summaries of the individual projects are included in this report.
Date: October 15, 1982
Creator: Whitten, J.L.
System: The UNT Digital Library
Development of model reference adaptive control theory for electric power plant control applications (open access)

Development of model reference adaptive control theory for electric power plant control applications

The scope of this effort includes the theoretical development of a multi-input, multi-output (MIMO) Model Reference Control (MRC) algorithm, (i.e., model following control law), Model Reference Adaptive Control (MRAC) algorithm and the formulation of a nonlinear model of a typical electric power plant. Previous single-input, single-output MRAC algorithm designs have been generalized to MIMO MRAC designs using the MIMO MRC algorithm. This MRC algorithm, which has been developed using Command Generator Tracker methodologies, represents the steady state behavior (in the adaptive sense) of the MRAC algorithm. The MRC algorithm is a fundamental component in the MRAC design and stability analysis. An enhanced MRC algorithm, which has been developed for systems with more controls than regulated outputs, alleviates the MRC stability constraint of stable plant transmission zeroes. The nonlinear power plant model is based on the Cromby model with the addition of a governor valve management algorithm, turbine dynamics and turbine interactions with extraction flows. An application of the MRC algorithm to a linearization of this model demonstrates its applicability to power plant systems. In particular, the generated power changes at 7% per minute while throttle pressure and temperature, reheat temperature and drum level are held constant with a reasonable level …
Date: September 15, 1982
Creator: Mabius, L.E.
System: The UNT Digital Library
Energy Saver A-Sector Power Test Results (open access)

Energy Saver A-Sector Power Test Results

The superconducting magnets and associated cryogenic components in A-sector represent the initial phase of installation of the Fermilab superconducting accelerator, designed to accelerate proton beams to energies of 1 TeV. Installation of the magnets, comprising one-eighth of the ring, was completed in December, 1981. Cooldown and power tests took place in the first half of 1982, concurrent with main ring use for 400 GeV high energy physics. The tests described in this paper involved 151 cryogenic components in the tunnel: 94 dipoles, 24 quadrupoles, 25 spool pieces, 3 feed cans, 4 turn-around boxes and 1 bypass. Refrigeration was supplied by three satellite refrigerators, the Central Helium Liquefier, and two compressor buildings. The magnets were powered by a single power supply.
Date: September 15, 1982
Creator: Martin, P.; Flora, R.; Tool, G. & Wolff, D.
System: The UNT Digital Library
Multiheteromacrocycles that complex metal ions. Ninth progress report (includes results of last three years), 1 May 1980--30 April 1983 (open access)

Multiheteromacrocycles that complex metal ions. Ninth progress report (includes results of last three years), 1 May 1980--30 April 1983

The overall objective of this research is to design, synthesize, and evaluate cyclic and polycyclic host organic compounds for the abilities to complex and lipophilize guest metal ions, their complexes, and their clusters. Host organic compounds consist of strategically placed solvating, coordinating, and ion-pairing sites tied together by covalent bonds through hydrocarbon units around cavities shaped to be occupied by guest metal ions, or by metal ions plus their ligands. Specificity in complexation is sought by matching the following properties of host and guest: cavity and metal ion sizes; geometric arrangements of binding sites; numbers of binding sites; characters of binding sites; and valences. The hope is to synthesize new classes of compounds useful in the separation of metal ions, their complexes, and their clusters.
Date: September 15, 1982
Creator: Cram, D. J.
System: The UNT Digital Library
RMDF leach-field decontamination. Final report (open access)

RMDF leach-field decontamination. Final report

The objective of the decontamination effort was to place the Radioactive Materials Disposal Facility (RMDF) leach field in a condition suitable for release for unrestricted use. Radioactively contaminated soil was excavated from the leach field to produce a condition of contamination as low as reasonably achievable (ALARA). The contaminated soil was boxed and shipped to an NRC-licensed burial site at Beatty, Nevada, and to the DOE burial site at Hanford, Washington. The soil excavation project successfully reduced the contamination level in the leach field to background levels, except for less than 0.6 mCi of Sr-90 and trace amounts of Cs-137 that are isolated in cracks in the bedrock. The cracks are greater than 10 ft below the surface and have been sealed with a bituminous asphalt mastic. A pathways analysis for radiation exposure to humans from the remaining radionuclides was performed, assuming intensive home gardening, and the results show that the total first year whole body dose equivalent would be about 0.1 mrem/year. This dose equivalent is a projection for the hypothetical ingestion of vegetables grown on the site. Assuming that an average adult consumes 64 kg of green leafy vegetables per year and that the entire yearly supply could …
Date: September 15, 1982
Creator: Carroll, J W; Marzec, J M & Stelle, A M
System: The UNT Digital Library
Scanning-Electron-Microscopy Study of Corrosion and Surface Features in Glass Microballoons (open access)

Scanning-Electron-Microscopy Study of Corrosion and Surface Features in Glass Microballoons

Gaseous acid treatment (HBr) of surface-hardened binary glass microballoons results in etching and the growth of salt nodules, tubes or whiskers, depending on moisture conditions. Temperatures from 400/sup 0/C to 625/sup 0/C for 24 h or more are required for the effects to be significant. Numerous imperfections, including craters, are documented on the unexposed interiors surfaces. The evident phase separation and nucleation sites suggest a need for better production controls and post-production annealing. 6 figures.
Date: September 15, 1982
Creator: Bystroff, R. I.
System: The UNT Digital Library
Introduction to nuclear test engineering (open access)

Introduction to nuclear test engineering

The basic information in this report is from a vu-graph presentation prepared to acquaint new or prospective employees with the Nuclear Test Engineering Division (NTED). Additional information has been added here to enhance a reader's understanding when reviewing the material after hearing the presentation, or in lieu of attending a presentation.
Date: July 15, 1982
Creator: O'Neal, W.C. & Paquette, D.L.
System: The UNT Digital Library
Is the two-term expansion valid for highly anisotropic systems. The Townsend ionization coefficient in strong runaway as a test case (open access)

Is the two-term expansion valid for highly anisotropic systems. The Townsend ionization coefficient in strong runaway as a test case

The Townsend ionization coefficient in the strong runaway regime is calculated within the framework of the two-term expansion. Results are compared to the 1-D model. General features of the two models are qualitatively similar, but quantitative differences by factors of approx. 2 are observed.
Date: July 15, 1982
Creator: Yu, S. S. & Melendez, R. E.
System: The UNT Digital Library
Physics and numerics of the tensor code (incomplete preliminary documentation) (open access)

Physics and numerics of the tensor code (incomplete preliminary documentation)

The present TENSOR code is a descendant of a code originally conceived by Maenchen and Sack and later adapted by Cherry. Originally, the code was a two-dimensional Lagrangian explicit finite difference code which solved the equations of continuum mechanics. Since then, implicit and arbitrary Lagrange-Euler (ALE) algorithms have been added. The code has been used principally to solve problems involving the propagation of stress waves through earth materials, and considerable development of rock and soil constitutive relations has been done. The code has been applied extensively to the containment of underground nuclear tests, nuclear and high explosive surface and subsurface cratering, and energy and resource recovery. TENSOR is supported by a substantial array of ancillary routines. The initial conditions are set up by a generator code TENGEN. ZON is a multipurpose code which can be used for zoning, rezoning, overlaying, and linking from other codes. Linking from some codes is facilitated by another code RADTEN. TENPLT is a fixed time graphics code which provides a wide variety of plotting options and output devices, and which is capable of producing computer movies by postprocessing problem dumps. Time history graphics are provided by the TIMPLT code from temporal dumps produced during production …
Date: July 15, 1982
Creator: Burton, D.E.; Lettis, L.A. Jr.; Bryan, J.B. & Frary, N.R.
System: The UNT Digital Library
Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development program. Progress report, October 1, 1981-December 31, 1981. [Alloy-MA-956; alloy-MA-754] (open access)

Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development program. Progress report, October 1, 1981-December 31, 1981. [Alloy-MA-956; alloy-MA-754]

Work covered in this report includes the activities associated with the status of the simulated reactor helium supply systems and testing equipment. The progress in the screening test program is descibed; this includes: screening creep results and metallographic analysis for materials thermally exposed or tested at 750/sup 0/, 850/sup 0/, 950/sup 0/ and 1050/sup 0/C (1382/sup 0/, 1562/sup 0/, 1742/sup 0/, and 1922/sup 0/F) in controlled-purity helium. The status of creep-rupture in controlled-purity helium and air and fatigue testing in the controlled-purity helium in the intensive screening test program is discussed. The results of metallographic studies of screening alloys exposed in controlled-purity helium for 3000 hours at 750/sup 0/C and 5500 hours at 950/sup 0/C, 3000 hours at 1050/sup 0/C and 6000 hours at 1050/sup 0/C and for weldments exposed in controlled-purity helium for 6000 hours at 750/sup 0/C and 6000 hours at 1050/sup 0/C are presented and discussed.
Date: June 15, 1982
Creator: Kimball, O.F.
System: The UNT Digital Library
Look at nuclear artillery yield options using JANUS, a wargame simulation code (open access)

Look at nuclear artillery yield options using JANUS, a wargame simulation code

JANUS, a two-sided, interactive wargame simulation code, was used to explore how using each of several different yield options in a nuclear artillery shell might affect a tactical battlefield simulation. In a general sense, the results or outcomes of these simulations support the results or outcomes of previous studies. In these simulations the Red player knew of the anticipated nuclear capability of the Blue player. Neither side experienced a decisive win over the other, and both continued fighting and experienced losses that, under most historical circumstances, would have been termed unacceptable - that is, something else would have happened (the attack would have been called off). During play, each side had only fragmentary knowledge of the remaining resources on the other side - thus each side desired to continue fighting on the basis of known information. We found that the anticipated use of nuclear weapons by either side affects the character of a game significantly and that, if the employment of nuclear weapons is to have a decided effect on the progress and outcome of a battle, each side will have to have an adequate number of nuclear weapons. In almost all the simulations we ran using JANUS, enhanced radiation …
Date: June 15, 1982
Creator: Andre, C. G.
System: The UNT Digital Library
Microalgae as a source of liquid fuels. Final technical report. [200 references] (open access)

Microalgae as a source of liquid fuels. Final technical report. [200 references]

The economics of liquid-fuels production from microalgae was evaluated. A detailed review of published economic analyses of microalgae biomass production revealed wide variations in the published costs, which ranged from several dollars per pound for existing commercial health-food production in the Far East, to less than .05/lb costs projected for microalgae biomass for fuel conversion. As little design information or specific cost data has been published, a credible cost estimate required the conceptual engineering design and cost estimating of microalgae to liquid-fuels processes. Two systems were analyzed, shallow (2 to 3'') covered ponds and deeper (1 ft) open ponds. Only the latter was selected for an in-depth analysis due to the many technical shortcomings of the former approach. Based on the cost analysis of a very simple and low cost process, the most optimistic costs extrapolated were about $60/barrel. These were based on many optimistic assumptions. Additional, more detailed, engieering and cost analyses would be useful. However, the major emphasis in future work in this area should be on demonstrating the basic premises on which this design was based: high productivity and oil content of microalgae strains that can dominate in open ponds and which can be harvested by a …
Date: May 15, 1982
Creator: Benemann, J. R.; Goebel, R. P.; Weissman, J. C. & Augenstein, D. C.
System: The UNT Digital Library
Geochemical assessment of nuclear-waste isolation. Testing of methods for the separation of solid and aqueous phases (open access)

Geochemical assessment of nuclear-waste isolation. Testing of methods for the separation of solid and aqueous phases

Measurement of the solubilities of certain waste radionuclide compounds will be necessary to adequately assess and predict the ability of potential underground waste storage facilities to meet federally established performance criteria. During such measurements, it is usually necessary to physically separate solid and solution phases. Experiments have been conducted to test and compare the relative efficacy of three commonly used separation methods, i.e. gravity settling, centrifugation and filtration. The results indicated that sorption of solution species onto filters can occur and could potentially lead to erroneous results in solubility measurements when one is dealing with trace amounts of radionuclides in solution. The degree of retention by filters depended on the solution pH and the nature of the filter material. Of the three methods, centrifugation appeared to give the most reliable and consistent results. Filtration was found to give results comparable to centrifugation if care is taken in the selection of filter type.
Date: April 15, 1982
Creator: Silva, R. J. & Yee, A. W.
System: The UNT Digital Library
Lasers in chemical processing (open access)

Lasers in chemical processing

The high cost of laser energy is the crucial issue in any potential laser-processing application. It is expensive relative to other forms of energy and to most bulk chemicals. We show those factors that have previously frustrated attempts to find commercially viable laser-induced processes for the production of materials. Having identified the general criteria to be satisfied by an economically successful laser process and shown how these imply the laser-system requirements, we present a status report on the uranium laser isotope separation (LIS) program at the Lawrence Livermore National Laboratory (LLNL).
Date: April 15, 1982
Creator: Davis, J.I.
System: The UNT Digital Library
Annual technical report: fiscal year 1981 (open access)

Annual technical report: fiscal year 1981

The activities of the JPL Solar Thermal Power Systems Parabolic Dish Project are summarized for FY 1981. Included are discussions on subsystem designs of concentrators, receivers, engines, power converters, and thermal transport. Analyses and test results are also included along with progress on field tests, Small Community System development and the Parabolic Dish Test Site.
Date: March 15, 1982
Creator: unknown
System: The UNT Digital Library
Assessment of deposition for power-plant molten-carbonate fuel cells (open access)

Assessment of deposition for power-plant molten-carbonate fuel cells

Particulate deposition in molten carbonate fuel cell anodes is addressed for operation with future coal gasification power plants. Power plant systems factors affecting deposition are explored such as gas cleanup requirements for particulate removal and gasifier product gas composition differences for various gasifier types and operational modes (air blown versus oxygen blown). Effects of fuel cell characteristics (including average cell current density and fuel utilization) on anode deposition are also quantified. Particulate effects on molten carbonate fuel cell anode performance may not be as detrimental as perhaps perceived in the past. Gas cleanup to remove virtually all particles larger than one micron in diameter is expected to prevent or at least greatly reduce anode deposition. However, cathode deposition in molten carbonate fuel cells should be evaluated in the future since cathodes are likely more prone to deposition than anodes even though cathode channel particle concentrations are much lower.
Date: March 15, 1982
Creator: Wenglarz, R. A.
System: The UNT Digital Library
Energy spectrum of neutrals formed in an ion accelerator (open access)

Energy spectrum of neutrals formed in an ion accelerator

This work presents an estimate of the energy distribution of the neutrals formed in the ion beam accelerator. However it does not determine the fraction of those neutrals which leave the neutral beam injector and go on into the reactor. To do that, more details of the beam line performance are needed.
Date: March 15, 1982
Creator: Fink, J.H.
System: The UNT Digital Library