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Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report
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Dynamical evolution of cosmic strings
The author have studied by means of numerical simulations the dynamical evolution of a network of cosmic strings, both in the radiation and matter era. Our basic conclusion is that a scaling solution exists, i.e., the string energy density evolves as t/sup -2/. This means that the process by which long strings dump their energy into closed loops (which can gravitationally radiate away) is efficient enough to prevent the string domination over other forms of energy. This conclusion does not depend on the initial string energy density, nor on the various numerical parameters. On the other hand, the generated spectrum of loop sizes does depend on the value of our numerical lower cutoff (i.e., the minimum length of loop we allow to be chopped off the network). Furthermore, the network evolution is very different from what was assumed before), namely the creation of a few horizon sized loops per horizon volume and per hubble time, which subsequently fragment into about 10 smaller daughter loops. Rather, many tiny loops are directly cut from the network of infinite strings, and it appears that the only fundamental scale (the horizon) has been lost. This is probably because a fundamental ingredient had been overlooked, …
Date:
May 11, 1988
Creator:
Bouchet, F. R.
Object Type:
Article
System:
The UNT Digital Library
ICPP custom dissolver explosion recovery
This report discusses the recovery from the February 9, 1991 small scale explosion in a custom processing dissolver at the Idaho Chemical Processing Plant. Custom processing is a small scale dissolution facility which processes nuclear material in an economical fashion. The material dissolved in this facility was uranium metal, uranium oxides, and uranium/fissium alloy in nitric acid. The paper explained the release of fission material, and the decontamination and recovery of the fuel material. The safety and protection procedures were also discussed. Also described was the chemical analysis which was used to speculate the most probable cause of the explosion. (MB)
Date:
June 11, 1992
Creator:
Demmer, R. & Hawk, R.
Object Type:
Article
System:
The UNT Digital Library
Study of efficient high-power, high-energy neutral beams for the Reference Mirror Reactor
An injector design for the Reference Mirror Reactor is described which uses negative ions created by charge-exchange in a cesium vapor cell and neutralized by photodetachment. Some of the innovations discussed include a continuously operating cathode for an LBL/LLL ion source, a negative ion beam line with cooled grids, a high voltage accelerator configuration with insulators shielded from the neutron and gamma flux, and cryopanels which continuously cycle between pumping and outgassing modes.
Date:
November 11, 1976
Creator:
Fink, J. H.; Barr, W. L. & Hamilton, G. W.
Object Type:
Report
System:
The UNT Digital Library
Non-linear scale invariance in a cold-dark-matter universe
The observed decomposition of the lowest (N = 3,4) N-point correlation functions in symmetrized (N - 1) products of two-point correlation functions suggest the possibility that the Universe may obey a specific scale invariance, at least in some range. Assuming that this scale invariance is strictly verified for all N, some specific predictions concerning the void probability function P(sub O), and more generally the count probabilities P(sub N), as well as the fractal dimensions of the system can be made. In this report, the authors investigate the possibility that the non-linear evolution in a CDM Universe indeed to such a scale invariance.
Date:
May 11, 1988
Creator:
Bouchet, F. R.
Object Type:
Article
System:
The UNT Digital Library
Design wind speeds for high hazard, moderate hazard, important/low hazard and general use facilities at the Savannah River Site
The design wind speeds for High Hazard, Moderate Hazard, Important/Low Hazard and General Use facilities at the Savannah River Site are developed below using the procedures and site-specific hazards model required by DOE Order 6430.1A. These are less than the previously required Design Wind Speeds and are: (1) High Hazard (Maximum Resistance) Facility, 185 mph; (2) Moderate Hazard (High Resistance) Facility, 37 mph; (3) Important/Low Hazard (Intermediate) Facility, 83 mph; and, (4) General Use (Standard) Facility, 78 mph.
Date:
September 11, 1989
Creator:
King, H. H.
Object Type:
Report
System:
The UNT Digital Library
100-keV Faraday cup design: materials and structure
A Faraday cup design for a 1 mA.cm/sup -2/ 100-keV, light-ion-beam measurement in background plasma is proposed. Features of this shielded, three-grid structure with deep target are described, and a mechanical draft is included. In the appendix, we reference and survey results of experiments reporting the number and energy range of secondary electrons and back-scattered ions originating on various metal surfaces bombarded with approximately 100-keV hydrogen and deuterium ions. Choice of target and grid materials in cup assembly follow from this survey.
Date:
October 11, 1976
Creator:
Jones, K.
Object Type:
Report
System:
The UNT Digital Library
Sealing AEC No. 1 well, Lyons, Kansas. Final report
None
Date:
February 11, 1974
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Final report for fuel acquisition and design of a fast subcritical blanket facility
A summary is presented of work leading to the design of a subcritical facility for the study of fast reactor blankets. Included are activities related to fuel acquisition, design of the facility, and experiment planning.
Date:
March 11, 1976
Creator:
Clikeman, F. M. & Ott, K. O.
Object Type:
Report
System:
The UNT Digital Library
Finite amplitude thermal convection in porous media with uniform heat source
An unbounded horizontal fluid layer in a porous medium with an internal heat source and uniformly heated from below was studied. The layer is in the gravitational field. Linear theory predicts that the disturbances of infinitesimal amplitude will start to grow when the Rayleigh number exceeds its critical value. These disturbances do not grow without limit; but by advecting heat and momentum, the distrurbances alter their forms to achieve a finite amplitude. Just like infinitesimal amplitude disturbances the degenercies of possible solutions persist for finite amplitude solutions. This study evaluates the stability of these various forms of solutions. The small parameter method of Poincare is used to treat the problem in successive order.
Date:
August 11, 1976
Creator:
Hwang, I. T.
Object Type:
Article
System:
The UNT Digital Library
Preliminary design review document application of multi-foil insulation to the Brayton Isotope Power System and conceptual design of multi-foil insulation for the flight system (phase I)
The status of the effort to apply MULTI-FOIL thermal insulation in an effective manner to the Ground Development System (GDS) is reviewed. Heat loss measurements made on cylindrical and elbow heat sources using ''Tape'' and ''Conventional'' MULTI-FOIL indicate that the thermal losses are comparable on a per layer basis. However, use of the tape incurs a weight penalty, per layer, of about 20 percent. The effective thermal emissivity of the nickel layer/zirconia powder MULTI-FOIL is approximately 0.32. Parametric studies of GDS insulation losses (using a computer program developed for this purpose) indicate: (1) that the Heat Source Assembly (HSA) heat losses are a major fraction of the total and (2) that a significant reduction in heat loss is possible by optimizing the distribution of foil layers. A meltdown test of a miniature HSA configuration suggests that additional MULTI-FOIL layers can be safety added to the HSA insulation. Test data indicate that ''Electroformed'' MULTI-FOIL insulation assemblies (as a consequence of decreased edge loss and lower foil emissivity) are approximately four times as effective as either ''Conventional'' or ''Tape'' MULTI-FOIL packages on a weight basis. Preliminary GDS insulation design and planning have been completed.
Date:
June 11, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Interaction cross section of C/sub s//sup +/ ions
Some estimates of the shape of C/sub s/ ion and C/sub s/ atom interaction potentials suggest that the C/sup +//sub s/ + C/sup +//sub s/ charge transfer cross section may be less than 10/sup -15/ cm/sup 2/.
Date:
August 11, 1976
Creator:
Hiskes, J. R.
Object Type:
Report
System:
The UNT Digital Library
Advanced waste forms research and development. Annual report
Research and development activities on advanced (alternatives to glass) nuclear waste forms are reported. The emphasis is on two phases of the work to give essential background information on supercalcine development. The first is a report of the data obtained in the study of cesium aluminosilicate for Cs and Ru fixation. Research on the compatibility of the phases formed in the complex oxide system made up of waste and additive cations is reported. The phase stability in a number of proposed formulations was determined. (JSR)
Date:
June 11, 1975
Creator:
McCarthy, G. J.
Object Type:
Report
System:
The UNT Digital Library
Environmental technology applications: fact file on toxic contaminants in industrial waste process streams
This report is a compendium of facts related to chemical materials present in industrial waste process streams which have already been declared or are being evaluated as hazardous under the Toxic Substances Control Act. Since some 400 chemicals are presently covered by consensus standards, the substances reviewed are only those considered to be a major threat to public health and welfare by Federal and State regulatory agencies. For each hazardous material cited, the facts relate, where possible, to an identification of the stationary industrial sources, the kind of waste stream impacted, proposed regulations and established effluent standards, the volume of emissions produced each year, the volume of emissions per unit of industrial product produced, present clean-up capabilities, limitations, and costs. These data should be helpful in providing information for the assessment of potential problems, should be of use to the manufacturers of pollution control equipment or of chemicals for pollution control, should be of use to the operators or potential operators of processes which produce pollutants, and should help to define industry-wide emission practices and magnitudes.
Date:
May 11, 1977
Creator:
Newkirk, H. W.
Object Type:
Report
System:
The UNT Digital Library
Mechanical support for straw tubes
A design is proposed for mounting a large number of straw tubes to form an SSC central tracking chamber. The assembly is precise and of very low mass. The fabrication is modular and can be carried out with a minimum of tooling and instrumentation. Testing of modules is possible prior to the final assembly. 4 figs.
Date:
March 11, 1990
Creator:
Joestlein, H.
Object Type:
Report
System:
The UNT Digital Library
Status report to ERDA Nuclear Data Committee
This status report to the Nuclear Data Committee from LLL summarizes work in the areas of standards, nuclear data applications, nuclear data for safeguards, and nuclear data compilation. A few of these papers, though brief, do contain data. 9 figures, 2 tables. (RWR)
Date:
February 11, 1977
Creator:
Anderson, J. D.; Browne, J. C. & Gardner, D. G.
Object Type:
Report
System:
The UNT Digital Library
Overview of advanced process control in welding within ERDA
The special kinds of demands placed on ERDA weapons and reactors require them to have very reliable welds. Process control is critical in achieving this reliability. ERDA has a number of advanced process control projects underway with much of the emphasis being on electron beam welding. These include projects on voltage measurement, beam-current control, beam focusing, beam spot tracking, spike suppression, and computer control. A general discussion of process control in welding is followed by specific examples of some of the advanced joining process control projects in ERDA.
Date:
February 11, 1977
Creator:
Armstrong, R. E.
Object Type:
Article
System:
The UNT Digital Library
Safety analysis report for packaging: neutron shipping cask, model 0. 5T
The Safety Analysis Report for Packaging demonstrates that the neutron shipping cask can safely transport, in solid or powder form, all isotopes of uranium, plutonium, americium, curium, berkelium, californium, einsteinium, and fermium. The shipping cask and its contents are described. It also evaluates transport conditions, structural parameters (e.g., load resistance, pressure and impact effects, lifting and tiedown devices), and shielding. Finally, it discusses compliance with Chapter 0529 of the Energy Research and Development Administration Manual.
Date:
June 11, 1976
Creator:
Peterson, R. T.
Object Type:
Report
System:
The UNT Digital Library
Large area silicon sheet task low-cost silicon solar array project. Sixth quarterly progress report, 4 April 1977--1 July 1977
Silicon ribbons were grown in the presence of some air back-streaming and were consistently polycrystalline with little evidence of oriented growth from the seed. The problem of back-diffusion of air from the exit port has been eliminated, and clean growth conditions, as determined by silicon wafer film test, have been obtained in the redesigned seeded growth furnace. This furnace developed a water leak in the cooling nozzle, so it has not as yet been used to grow silicon. A new, vertical seeded growth furnace, which permits the seeding and initial crystal growth to take place below the alloy surface, has been designed and is being built.
Date:
July 11, 1977
Creator:
Garfinkel, M. & Hall, R. N.
Object Type:
Report
System:
The UNT Digital Library
SOCKITTOME image processing
''SOCKITTOME'' was the name given a collection of routines which processed data of the form y = f(x). This collection consisted of a ''public'' controller (SOCKITTOME) and controllees stored in a political library file to be called up (and disposed of) by the controller. Later, it was decided to put routines capable of processing z = f(x,y) image data under the control of SOCKITTOME, and to rewrite them so that they could be as general and useful as possible. The disk file format was also revised so that it, too, could be as general as desired. The bulk of this report is devoted to a description of the new SOCKITTOME image routines and their usage. (RWR)
Date:
May 11, 1976
Creator:
Finn, H. F. & Hummell, M.
Object Type:
Report
System:
The UNT Digital Library
University of Utah Direct Contact Geothermal Power Project report. A computer program for determining the thermodynamic properties of water
This program was written to be used as a subroutine. The program determines the thermodynamic properties of water given any of the following pairs of knowns to define a thermodynamic state: pressure and entropy, pressure and enthalpy, pressure and quality, temperature and pressure, or temperature and quality. These five pairs of knowns allow the user to evaluate any thermodynamic cycle using water, as a working fluid. The basic equations came from Keenan, Keyes, Hill and Moore, Steam Tables, John Wiley and Sons, 1969. This report includes a complete derivation of equations, program listing, program symbol description, a complete set of flow charts and a sample steam turbine calculation.
Date:
June 11, 1976
Creator:
Riemer, D. H.; Jacobs, H. R. & Boehm, R. F.
Object Type:
Report
System:
The UNT Digital Library
Charged particle detector system for the MPS and ISABELLE spectrometers
A detector system combining the good time resolution and low dead time to PWC's and the good space resolution of drift chambers is proposed to upgrade the MPS and for future use in Isabelle spectrometers. Central to this detector is the development of two integrated electronic circuit systems. The detectors are described with special emphasis on the electronic systems. The detector system proposed will be capable of handling particle flux rates typical of conventional PWC's yet providing a spacial resolution of 100 ..mu..m. Another advantage is that a large area detector of such performance will become technically feasible as well as economically viable.
Date:
October 11, 1976
Creator:
Platner, E. D.
Object Type:
Report
System:
The UNT Digital Library
Reversed field decay times
A two-fluid equilibrium plasma model with electron-ion drag terms taken from the Spitzer coefficients is used in the analysis. An equilibrium cold electron background is assumed to exist which balances the electrical charge of the rotating ion ring. The ions can be assumed to have a directed velocity which is on the order of their mean thermal velocity.
Date:
January 11, 1977
Creator:
Morse, E. C.
Object Type:
Report
System:
The UNT Digital Library
Preliminary evaluation of the mini-BRU turbine plenum in superalloy and the currently available heat exchanger for the BIPS workhorse system
The Mini-BRU turbine plenum and nozzle assembly in superalloy and the currently available L.A. heat exchanger have been examined for the BIPS workhorse system. Waspaloy can be used as the material of construction for the plenum and nozzle assembly. The L.A. heat exchanger can be utilized in the workhorse system with recommended modification.
Date:
May 11, 1976
Creator:
Yang, S. J.
Object Type:
Report
System:
The UNT Digital Library
Reevaluation of the gamma-ray energies and absolute branching intensities of /sup 237/U, /sup 238/ /sup 239/ /sup 240/ /sup 241/Pu, and /sup 241/Am
Promising new techniques for making quantitative measurements of plutonium require highly precise values of the gamma-ray energies and intensities for the isotopes involved. Using high isotopic purity sources and state of the art Ge(Li) detectors, we have reevaluated the energies and absolute emission probabilities of the gamma rays following the decay of /sup 237/U, /sup 238/, /sup 239/, /sup 240/, /sup 241/Pu, and /sup 241/Am.
Date:
October 11, 1976
Creator:
Gunnink, R.; Evans, J. E. & Prindle, A. L.
Object Type:
Report
System:
The UNT Digital Library