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Fiscal Year 2004
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Downhole Power Generation and Wireless Communications for Intelligent Completions Applications, Quarterly Report
2
Fiscal Year 1996
2
Winter Fuels Report
2
Active Cathodes for Super-High Power Density Solid Oxide Fuel Cells Through Space Charge Effects Quarterly Report
1
CO2 Capture by Absorption With Potassium Carbonate Quarterly Report
1
Chemical Processing Department Monthly Report
1
Development of Continuous Solvent Extraction Processes for Coal Derived Carbon Products Quarterly Report
1
Development of ITM Oxygen Technology for Integration in IGCC & Other Advanced Power Generation Systems (ITM Oxygen) Progress Report
1
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
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Elevated-temperature benchmark tests of simply supported beams and circular plates subjected to time-varying loadings
This report presents the measured elastic-plastic-creep responses of eight simply supported type 304 stainless steel beams and circular plates that were subjected to time-varying loadings at elevated temperature. The tests were performed to provide experimental benchmark problem data suitable for assessing inelastic analysis methods and for validating computer programs. Beams and plates exhibit the essential features of inelastic structural behavior; yet they are relatively simple and the experimental results are generally easy to interpret. The stress fields are largely uniaxial in beams, while multiaxial effects are introduced in plates. The specimens tested were laterally loaded at the center and subjected to either a prescribed load or a center deflection history. The specimens were machined from a common well-characterized heat of material, and all the tests were performed at a temperature of 593/sup 0/C (1100/sup 0/F). Test results are presented in terms of the load and center deflection behaviors, which typify the overall structural behavior. Additional deflection data, as well as strain gage results and mechanical properties data for the beam and plate material, are provided in the appendices.
Date:
August 8, 1977
Creator:
Corum, J. M.; Richardson, M. & Clinard, J. A.
System:
The UNT Digital Library
Certification of packagings: compliance with DOT specification 7A packaging requirements
A study was conducted to determine which of the packagings currently listed in CFR 49 Section 173.395 a.1-5, meet the Specification 7A requirements (CFR 49 Section 173.350). According to DOT HM-111 the present listing of various authorized DOT specifications in Section 173.394 and Section 173.395 (Type A containers) of ICC Tariff No. 27 would be deleted with complete reliance being placed on the use of DOT 7A, Type A general packaging specification. Each user of a Specification 7A package would be required to document and maintain on file for one year a written record of his determination of compliance with the DOT Specification 7A performance requirements. All the specification packagings listed in CFR 49 Section 173.395a.1-5 were tested and shown to meet the Specification 7A criteria; however, in many cases qualifications were placed on their use. Forty-nine specification packagings were tested and shown to meet the DOT Specification 7A performance requirements and since there were several styles of some specific packagings, this amounts to greater than 80 packagings. The extensive testing generally indicated a high degree of containment integrity in the packagings tested and the documentation discussed is a valuable tool for shippers of Type A quantities of radioactive materials. …
Date:
October 8, 1976
Creator:
Edling, D. A.
System:
The UNT Digital Library
Hawaii technology utilization experiment
A one-year technology-transfer project involving ERDA installations and Hawaii consisted of sending teams from the Lawrence Livermore Laboratory on week-long field trips every two months to test the effectiveness of different methods of transferring technology information from federal sources to civilian clients. The team was questioned primarily on non-energy matters, and the energy questions asked related mostly to individuals or small industries. The team responed to all questions and found that a wide range of knowledge was more effective than having a sequence of experts. Hawaiians considered current major ERDA projects to be irrelevant to their needs. The team was most successful on a one-to-one basis because large groups and state agencies tend to be more policy- than action-oriented. Personal followup was considered essential. The team also learned that their visits generated ten times as many inquiries as were received unsolicited by the laboratory. Most inquiries involved biomass and use of agricultural wastes, solar energy, and transportation. An important contribution of the team's workshops was linking groups to work together on common problems. An appendix lists the subjects of queries and the names and addresses of consortium participants and Hawaiian contacts. (DCK)
Date:
December 8, 1976
Creator:
Dorn, David W. & Miller, Charles F.
System:
The UNT Digital Library
Low-Cost Silicon Solar Array project (LSSA). Quarterly report, April 1976--June 1976
Activities and progress of the LSSA Project during April, May, and June 1976 are described. This involved the awarding of additional contracts, an evaluation and clarification of plans and working relationships with contractors, the receipt of initial technical results, and an expansion of activity in the evaluation and improvement of the solar cell modules that are included in the Project's first procurement (46 kilowatts). For the most part, the new manufacturing technology is being developed under contract by industries and universities. It includes the consideration of new silicon-refinement processes, silicon sheet-growth techniques, encapsulants, and automated-assembly production. During this report period analytical and experimental accomplishments resulted from day-to-day activities that are the early efforts of a long range plan. Thirty-one contracts have been awarded and two more are being negotiated. Five companies have delivered 20 kilowatts out of a total purchase of 46 kilowatts of ''off-the-shelf'' modules that will be used in ERDA's test and demonstration activities. The same five companies have just been awarded contracts for the purchase of 130 kilowatts of semistandardized modules at an average selling price of $15.50 per watt. (WDM)
Date:
October 8, 1976
Creator:
unknown
System:
The UNT Digital Library
Age-dependent radiosensitivity of mouse oocytes
It has been shown that there are three distinct phases of radiosensitivity in oocytes of prepubertal mice: a period of rapidly increasing sensitivity between 0 and 4 days of age; a period of consistent, high sensitivity between 5 and 18 days of age; and a period of decreasing sensitivity from 19 to at least 21 days of age. Two distinct phases have been demonstrated for the rate of population decline of the oocytes of primary follicles: an initial period of rapid loss from 0 to 4 days of age; and a period of much slower loss from 5 through 23 days of age. Correlations have been drawn between the first two phases of radiosensitivity and morphological changes in the oocyte, and between the third phase of radiosensitivity and endocrinological changes in the maturing animal. The reaction of oocytes to radiation has been separated into two categories: immediate death (within 24 hours); and delayed death (over the entire lifespan of the animal). (auth)
Date:
June 8, 1976
Creator:
Koehler, C.
System:
The UNT Digital Library
Catastrophe theory. Part I. Mathematical aspects
This reasonably self-contained report on Catastrophe Theory begins with the mathematical history of Catastrophe Theory and discusses the relation between Catastrophe Theory and the ''Catastrophe Theorem'' presented in the report. Catastrophe Theory consists of a ''local'' classification theorem for unfoldings of germ singularities, which satisfy certain conditions. The ''classification'' is a list of seven (nonsimilar) irreducible unfoldings (and their respective germs), such that the given unfolding must be reduced with index zero to exactly one of these (or to the ''constant'' unfolding of the same unfolding dimension). The Catastrophe Theorem is stated (together with background definitions and commentary) and a summary of the proof of this theorem is given. 6 tables. (RWR)
Date:
October 8, 1976
Creator:
Zaslawsky, E. G.
System:
The UNT Digital Library
Correlation of Substructure With Mechanical Properties of Plastically Deformed Reactor Structural Materials. Progress Report, January 1, 1976--June 30, 1977
Transmission electron microscopy used to evaluate the deformation (creep, fatigue and tensile) induced microstructure of 304 SS, Incoloy 800, 330 SS and three of the experimental alloys (E19, E23 and E36) obtained from the National Alloy Program clearly shows that the relationship between the subgrain size (lambda) and the applied stress (sigma) obeys the equation lambda = Ab (sigma/E)/sup -1/ where A is a constant of the order of 4, b the Burgers rector and E is Young's modulus. Hot-hardness studies on 304 SS, 316 SS, Incoloy 800, 2 /sup 1///sub 4/ Cr-1 Mo steels, 330 SS, Inconel 718, PE-16, Inconel 706, M-813 and the above three experimental alloys suggests that reasonable effective activation energies for creep may be obtained through the use of the hardness test as a strength microprobe tool. The ordering of the strength levels obtained through hot-hardness follows quite closely that obtained in tensile tests when those data are available.
Date:
July 8, 1977
Creator:
Moteff, J.
System:
The UNT Digital Library
Electrical conductivity and equation of state of liquid nitrogen, oxygen, benzene, and 1-butene shocked to 60 GPa
Measurements are reported for the electrical conductivity of liquid nitrogen (N/sub 2/), oxygen (O/sub 2/) and benzene (C/sub 6/H/sub 6/), and Hugoniot equation of state of liquid 1-butene (C/sub 4/H/sub 8/) under shock compressed conditions. The conductivity data span 7 x 10/sup -4/ to 7 x 10/sup 1/ ..cap omega../sup -1/cm/sup -1/ over a dynamic pressure range 18.1 to 61.5 GPa and are discussed in terms of amorphous semiconduction models which include such transport phenomena as hopping, percolation, pseudogaps, and metallization. Excellent agreement is found between the equation-of-state measurements, which span a dynamic pressure range 12.3 to 53.8 GPa, and Ree's calculated values which assume a 2-phase mixture consisting of molecular hydrogen and carbon in a dense diamond-like phase. There is a 2-1/2 fold increase in the thermal pressure contribution over a less dense, stoichiometrically equivalent liquid. 90 refs., 48 figs., 8 tabs.
Date:
October 8, 1986
Creator:
Hamilton, D. C.
System:
The UNT Digital Library
Intense microwave pulse propagation through gas breakdown plasmas in a waveguide
High-power microwave pulse-compression techniques are used to generate 2.856 GHz pulses which are propagated in a TE/sub 10/ mode through a gas filled section of waveguide, where the pulses interact with self-generated gas-breakdown plasmas. Pulse envelopes transmitted through the plasmas, with duration varying from 2 ns to greater than 1 ..mu..s, and peak powers of a few kW to nearly 100 MW, are measured as a function of incident pulse and gas pressure for air, nitrogen, and helium. In addition, the spatial and temporal development of the optical radiation emitted by the breakdown plasmas are measured. For transmitted pulse durations greater than or equal to 100 ns, good agreement is found with both theory and existing measurements. For transmitted pulse duration as short as 2 ns (less than 10 rf cycles), a two-dimensional model is used in which the electrons in the plasma are treated as a fluid whose interactions with the microwave pulse are governed by a self-consistent set of fluid equations and Maxwell's equations for the electromagnetic field. The predictions of this model for air are compared with the experimental results over a pressure range of 0.8 torr to 300 torr. Good agreement is obtained above about 1 …
Date:
October 8, 1986
Creator:
Byrne, D. P.
System:
The UNT Digital Library
Training scientists and engineers for the year 2000
This paper is a transcript of testimony by Alvin W. Trivelpiece, director of ORNL, before Congressional Subcommittee on Science, Technology, and Space. Dr. Trivelpiece discusses the importance of training scientist and engineers for the year 2000. (FSD)
Date:
May 8, 1990
Creator:
Trivelpiece, A. W.
System:
The UNT Digital Library
Natural frequency analysis of the BIPS
A dynamic model was set up to determine the fundamental frequencies of the BIPS. The model consists of a radiator which supports four discrete masses by means of interface structures. Various materials and several different sizes of interface structures were used in the analysis. The fundamental frequencies vary from 38 cps to 227 cps dependent upon the material and the size of interface structure. The built-in strength of all the interface structures are in excess of the 25 g's limit loading criteria.
Date:
April 8, 1976
Creator:
Yang, S.
System:
The UNT Digital Library
IOS: PDP 11/45 formatted input/output task stacker and processer. [In MACRO-II]
IOS allows the programer to perform formated Input/Output at assembly language level to/from any peripheral device. It runs under DOS versions V8-O8 or V9-19, reading and writing DOS-compatible files. Additionally, IOS will run, with total transparency, in an environment with memory management enabled. Minimum hardware required is a 16K PDP 11/45, Keyboard Device, DISK (DK,DF, or DC), and Line Frequency Clock. The source language is MACRO-11 (3.3K Decimal Words).
Date:
July 8, 1974
Creator:
Koschik, J.
System:
The UNT Digital Library
Blockages in LMFBR fuel assemblies: a review of experimental and theoretical studies
This is a state-of-the-art report on the thermal-hydraulic effects of flow-channel blockages in liquid-metal fast breeder reactor (LMFBR) pin bundles. Most of the experimental and theoretical studies for simulating blockages in various prototype LMFBR fuel assemblies done in the United States and abroad through 1976 are presented and summarized. A brief summary on blockage detection is included.
Date:
August 8, 1977
Creator:
Han, J. T.
System:
The UNT Digital Library
Safety Analysis Report for Packaging (SARP): ATMX-500 Railcar nuclear packaging
A Safety Analysis Report for Packaging (SARP) is described that makes available to all potential users the technical specifications and limits pertinent to the modification and use of the ATMX Railcars for which the Department of Transportation has issued Special Permit No. 5948. The SARP includes discussions of structural integrity, thermal resistance, radiation shielding and radiological safety, nuclear criticality safety, and quality control. Much of the information was previously published in a similar report. A complte physical and technical description of the package is presented. The packaging cnsists of a specially modified ATMX Series 500 Railcar loaded with DOT Specification steel drums or fiberglass coated plywood boxes. The results of the nuclear criticality safety analysis provide the maximum quantities of each fissile isotope which may be shipped as Fissile Class I in 30- and 55-gal drums. A limit of 5 g/ft/sup 3/ was established for wooden boxes. Design and development considerations regarding the packaging concept and modification of the ATMX-500 Railcar are presented. Tables, dimensional sketches, sequential photographs of the structural modifications, technical references, loading and shipping guidelines, and results of Mound Laboratory's experience in using this container are included. An internal review of this SARP was performed in compliance …
Date:
July 8, 1977
Creator:
Griffin, J. F.; Peterson, J. B.; Edling, D. A. & Blauvelt, R. K.
System:
The UNT Digital Library
Calibration of thin film EMP sensors by AFWL Coaxial Chamber
Preliminary EMP calibration data on magnetic thin film current sensors has been obtained. The Air Force Weapon Lab's Coaxial Chamber was used as the EMP standard and a current pulse width of 40 ns was used. It was found that the sensitivity of the sensors can be increased by controlling the width of the 90/sup 0/ wall strip and that the current scales for the sensors were linear. The results strongly suggest that the dimensions of the sensors can be varied to meet different measurement requirements.
Date:
July 8, 1976
Creator:
Hsieh, E. J.; Vindelov, K. E.; Brown, T. G. & Miller, D. E.
System:
The UNT Digital Library
Mirror Hybrid Reactor Studies: July 1975--September 1976
Separate abstracts were prepared for each of the 6 included papers on mirror hybrids. (MOW)
Date:
October 8, 1976
Creator:
Lee, J. D.
System:
The UNT Digital Library
Postirradiation examination of capsules P13R and P13S
Capsules P13R and P13S were the seventh and eighth in a series of irradiation tests conducted under the ERDA-sponsored HTGR Fuels and Core Development Program. Reference type LHTGR fuel fabricated with a broad spectrum of property and process variables was irradiated to extreme temperature and fluence conditions. Postirradiation examination revealed that the bonded fuel rods exhibited good stability after irradiation to fast neutron fluences of 12.4 x 10/sup 21/ n/cm/sup 2/ (E greater than 0.18 MeV), which is 55 percent beyond the LHTGR peak design fast neutron fluence of 8.0 x 10/sup 21/ n/cm/sup 2/. Thermal cycling to high temperatures did not adversely affect fuel rod integrity. Particle batches with coating designs representative of the design requirements envisioned for the LHTGR exhibited excellent irradiation performance. Ten batches of fissile and fertile particles were irradiated without coating failure to fast neutron exposures which exceeded the LHTGR peak design exposure by 35 to 52 percent. Capsules P13R and P13S were considered to be very successful qualification tests of LHTGR fuel components. These results provided a substantial data base for the LHTGR Fuel Product Specification and Performance Models used in HTGR core design studies, and demonstrated the excellent irradiation performance of reference LHTGR …
Date:
October 8, 1976
Creator:
Scott, C. B.; Harmon, D. P. & Holzgraf, J. F.
System:
The UNT Digital Library
Production cycles in aquatic microcosms
Four 700-liter cylindrical containers were filled with demineralized water, enriched with nutrients, and inoculated with 3.5-liter lakewater samples. The microcosms were maintained at a temperature of 18/sup 0/C under a 12:12 L:D cycle for 6 months and several manipulations of their trophic structure were carried out, including addition of snails (Physa sp.), mosquitofish (Gambusia affinis), and catfish (Placostomas placostomas). Temporal variation of the phytoplankton resembled the bimodal patterns of certain natural systems. Further analysis demonstrated a close analogy with the predator-prey oscillations of temperate marine waters: an initial bloom is terminated by zooplankton grazing; the resulting low phytoplankton levels lead to gradual starvation of the zooplankton; and a second bloom follows the final dieoff of zooplankton. Both decreasing the concentration of initial nutrients and stocking the microcosms with Gambusia decreases the time between the spring and fall blooms. The problem of heavy periphyton growth in microcosms was not solved with the introduction of either Physa or Placostomas. Possible solutions to this and to other problems peculiar to microcosm research are discussed, and modifications are suggested for increasing the ability of microcosms to simulate natural systems.
Date:
February 8, 1977
Creator:
Jassby, A.; Dudzik, M.; Rees, J.; Lapan, E.; Levy, D. & Harte, J.
System:
The UNT Digital Library
Evaluation of one-year results of the full-face respirator quantitative man-test fitting program at the Lawrence Livermore Laboratory
In August 1975, Lawrence Livermore Laboratory began to quantitatively fit all employees who are or may be required to wear any type of full-face respirator. After one year, 306 employees have been fitted. A total of 1362 tests were made, using seven makes of full-face respirators. Of the 306 employees fitted, 284 were tested using more than one make of full-face mask. All employees fitted could get a maximum use limit (MUL) of at least 100, 8 percent has a MUL of 100 to 499 on at least one of the makes of masks tested, 11 percent had an MUL of 500 to 999, 13 percent had an MUL of 1000 to 1999, 24 percent had an MUL of 2000 to 4999, and 44 percent had an MUL greater than 5000. These numbers were derived using the average of the peak leakages occurring during each of six exercises performed while wearing each mask. If the overall average leakage occurring during the six exercises rather than the peak average is used in the calculations, 90 percent of the employees could obtain an MUL over 1000 on at least one make of mask.
Date:
December 8, 1976
Creator:
Held, B. J.; Cross, J.; Ellis, K. P.; Richards, C. P. & Rodriques, R.
System:
The UNT Digital Library
Fueled viking generator S/N 106 acceptance vibration test report
The Viking Generator S/N 106 was vibrated to the Teledyne Isotope Flight Acceptance Schedule (Random Only) with no deviation from normal generator functional output. Radiographic analysis and power tests before and after the vibration test indicated no change in the condition of the generator. The work was conducted in the Alpha Fuels Environmental Test Facility at Mound Laboratory.
Date:
June 8, 1976
Creator:
Anderson, C.; Brewer, C. O. & Abrahamson, S. G.
System:
The UNT Digital Library
Adhesive bonding of TATB/Kel-F 800
Triaminotrinitrobenzene (TATB) bonded with a copolymer of chlorotrifluoroethylene and vinylidene fluoride (Kel-F 800) was selected as the high explosive for use in the B77 bomb. The plastic-bonded explosive (RX-03-BB, 7.5 percent Kel-F 800) has high strength and is less sensitive to shock initiation than most previously used high explosives. Adhesive bonding of RX-03-BB has proved to be difficult, however, because of the chemical composition of both the TATB and the binder. Studies of the critical surface tension of the TATB, the binder, and the RX-03-BB using contact-angle measurements were made. Surface-tension measurements were made on modified epoxies and used as a guide in formulating new adhesives. A new adhesive, EXPLOSTIK 473, has a surface tension less than RX-03-BB and has satisfactory bond strength to over 75/sup 0/C.
Date:
November 8, 1976
Creator:
Hammon, H. G. & Althouse, L.
System:
The UNT Digital Library
Particle-in-cell vs straight-line airflow Gaussian calculations of concentration and deposition of airborne emissions out to 70 km for two sites of differing meteorological and topographical character
Two numerical models for the calculation of air concentration and ground deposition of airborne effluent releases are compared. The Particle-in-Cell (PIC) model and the Straight-Line Airflow Gaussian model were used for the simulation. Two sites were selected for comparison: the Hudson River Valley, New York, and the area around the Savannah River Plant, South Carolina. Input for the models was synthesized from meteorological data gathered in previous studies by various investigators. It was found that the PIC model more closely simulated the three-dimensional effects of the meteorology and topography. Overall, the Gaussian model calculated higher concentrations under stable conditions with better agreement between the two methods during neutral to unstable conditions. In addition, because of its consideration of exposure from the returning plume after flow reversal, the PIC model calculated air concentrations over larger areas than did the Gaussian model.
Date:
October 8, 1976
Creator:
Lange, R.; Dickerson, M. A.; Peterson, K. R.; Sherman, C. A. & Sullivan, T. J.
System:
The UNT Digital Library
Quarterly progress report on chemical effluents in surface waters from nuclear power plants
The objectives of this research project were to obtain data on the behavior of potentially toxic substances introduced into surface waters from nuclear power plants, determine the impact magnitude of these substances on representative and economically important aquatic species, and the development of models with which to predict the partitioning of these substances among the abiotic aquatic compartments. Results are included from an investigation of copper partitioning in freshwater and seawater, the toxicity of copper to representative marine organisms, and development of a mathematical model to predict copper partitioning.
Date:
April 8, 1977
Creator:
Harrison, F. L.
System:
The UNT Digital Library
Design optimization of beta- and photovoltaic conversion devices
This report presents the theoretical and experimental results of an LLL Electronics Engineering research program aimed at optimizing the design and electronic-material parameters of beta- and photovoltaic p-n junction conversion devices. To meet this objective, a comprehensive computer code has been developed that can handle a broad range of practical conditions. The physical model upon which the code is based is described first. Then, an example is given of a set of optimization calculations along with the resulting optimized efficiencies for silicon (Si) and gallium-arsenide (GaAs) devices. The model we have developed, however, is not limited to these materials. It can handle any appropriate material--single or polycrystalline-- provided energy absorption and electron-transport data are available. To check code validity, the performance of experimental silicon p-n junction devices (produced in-house) were measured under various light intensities and spectra as well as under tritium beta irradiation. The results of these tests were then compared with predicted results based on the known or best estimated device parameters. The comparison showed very good agreement between the calculated and the measured results.
Date:
January 8, 1976
Creator:
Wichner, R.; Blum, A.; Fischer-Colbrie, E. & Chau, H.
System:
The UNT Digital Library