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Tunnel nitrogen spill experiment (open access)

Tunnel nitrogen spill experiment

The Energy Saver Safety Analysis Report (SAR) found the tunnel oxygen deficiency considerations emphasized helium spills. These reports concluded the helium quickly warms and because of its low denisty, rises to the apex of the tunnel. The oxygen content below the apex and in all but the immediate vicinity of the helium spill is essentially unchanged and guarantees an undisturbed source of oxygen especially important to fallen personnel. In contrast nitrogen spills warm slower than helium due to the ratio of the enthalpy changes per unit volume spilled spread more uniformly across the tunnel cross-section when warmed because of the much smaller density difference with air, and generally provides a greater hazard than helium spills as a result. In particular there was concern that personnel that might fall to the floor for oxygen deficiency or other reasons might find less, and not more, oxygen with dire consequences. The SAR concluded tunnel nitrogen spills were under-investigated and led to this work.
Date: August 18, 1983
Creator: Ageyev, A. I.; Alferov, V. N. & Mulholland, G. T.
System: The UNT Digital Library
Effect of grain size on the mechanical properties of dual phase Fe/Si/C steels (open access)

Effect of grain size on the mechanical properties of dual phase Fe/Si/C steels

For an Fe/2Si/0.1C steel with an intermediate quenching heat treatment, it was found that as the prior austenite grain size is refined, significant improvements in total elongation, reduction in area and impact toughness can be achieved, while uniform elongation, yield and tensile strengths are not affected. These improvements are analyzed in terms of microstructure and fracture characteristics. The cleavage cracks propagate nearly straight without deviation at the ferrite/martensite interfaces within the sub-units of the DFM structure, but change their path at high angle sub-unit boundaries. The crack is less likely to be deflected at the ferrite/martensite interface because the interface is coherent. Comparison of optical micrographs and SEM fractographs has shown that there is close agreement between the sub-unit size and cleavage facet size. The observations lead to the conclusion that the sub-unit size is the basic microstructure unit controlling the fracture behavior of DFM steels produced by the intermediate quenching heat treatment. A controlled rolling process was undertaken to obtain grain refined DFM steels. Results showed that this produces micro-duplex structures with attractive mechanical properties in an economicl way.
Date: August 1, 1983
Creator: Ahn, J.H.
System: The UNT Digital Library
Nevada Test Site seismic: telemetry measurements (open access)

Nevada Test Site seismic: telemetry measurements

The feasibility and limitations of surface-to-tunnel seismic telemetry at the Nevada Test Site were explored through field measurements using current technology. Range functions for signaling were determined through analysis of monofrequency seismic signals injected into the earth at various sites as far as 70 km (43 mi) from installations of seismometers in the G-Tunnel complex of Rainier Mesa. Transmitted signal power at 16, 24, and 32 Hz was measured at two locations in G-Tunnel separated by 670 m (2200 ft). Transmissions from 58 surface sites distributed primarily along three azimuths from G-Tunnel were studied. The G-Tunnel noise environment was monitored over the 20-day duration of the field tests. Noise-power probability functions were calculated for 20-s and 280-s seismic-record populations. Signaling rates were calculated for signals transmitted from superior transmitter sites to G-Tunnel. A detection threshold of 13 dB re 1 nm/sup 2/ displacement power at 95% reliability was demanded. Consideration of field results suggests that even for the frequency range used in this study, substantially higher signaling rates are likely to be obtained in future work in view of the present lack of information relevant to hardware-siting criteria and the seismic propagation paths at the Nevada Test Site. 12 references.
Date: August 1, 1983
Creator: Albright, J N; Parker, L E & Horton, E H
System: The UNT Digital Library
200 Sand Steamflood Demonstration Project. Sixth annual report, June 1981-June 1982 (open access)

200 Sand Steamflood Demonstration Project. Sixth annual report, June 1981-June 1982

This demonstration project was initiated in the 200 Sand Pool in the Midway-Sunset Field, California Sand Pool to demonstrate the operational, recovery, and economic aspects of steamflooding a typical heavy oil reservoir which had unfavorable response to cyclic stimulation. The scope of the project involves 5 phases: (1) pilot site monitoring and evaluation; (2) pilot area expansion; (3) site selection for expansion to full-scale project; (4) expansion to full-scale steamflood; and (5) production monitoring. After expansion and steam injection for one year, the wells are averaging 8 B/D oil and 29 B/D water per well. This rate is above the 5 BOPD for cyclic stimulation. Most of the producing wells are steam stimulated about twice a year to enhance steam breakthrough from the continuous steam. The total area has averaged 319 B/D oil and 1233 B/D water the last year. 7 figures, 1 table.
Date: August 1, 1983
Creator: Alford, W.O.
System: The UNT Digital Library
NESD CAE facility minimal implementation plan (June 1982) (open access)

NESD CAE facility minimal implementation plan (June 1982)

In conjunction with other divisions in the EE Department, the Nuclear Energy Systems Division is developing a Computer-Aided Engineering (CAE) capability. Some of our needs in areas such as drafting, PC design, and IC design can be satisfied with existing turnkey systems. Many of our other needs, including modeling, analysis, document management and communication, software development, project management, and project communication will require the gradual development of an expanded computing environment. The purpose of this document is to describe our initial plans to implement a CAE facility.
Date: August 4, 1983
Creator: Ames, H. S.
System: The UNT Digital Library
Raman microprobe investigation of molecular structure and organization in the native state of woody tissue. Progress report, April 1, 1982-July 31, 1983 (open access)

Raman microprobe investigation of molecular structure and organization in the native state of woody tissue. Progress report, April 1, 1982-July 31, 1983

The program has focused on installation of the Raman microprobe system and making it operational, on demonstrating the feasibility of the experimental approach, and on exploratory studies of molecular organization and structural variability in selected samples of plant tissue. The key findings are: (1) it is possible to acquire significant Raman spectral information from domains that are 1 to 3 ..mu..m in diameter in sections of plant cell walls; (2) polarized spectra are sensitive to orientation of the electric vector relative to the plane of the cell wall, indicating anisotropy of molecular organization with respect to the geometry of the cell; (3) preliminary explorations of woody tissue from black spruce and loblolly pine suggest that, in most instances, the aromatic rings of lignin are preferentially oriented in the plane of the cell wall, as are the anhydroglucose rings of the cellulose chains; and (4) preliminary studies also suggest that there is significant variation in the ratio of lignin to polysaccharide in the cell wall. In related studies, evidence of transverse anisotropy in the structure of ramie fibers has been detected. A spectrum of lignin in situ has been recorded by difference spectroscopy.
Date: August 1, 1983
Creator: Atalla, R. H.
System: The UNT Digital Library
Black and Hispanic Federal Judges: 1900 to Present (open access)

Black and Hispanic Federal Judges: 1900 to Present

This report shows that in recent years, attention has increasingly focused upon the minority composition of the Federal judiciary, in apparent response to concerns that judges appointed to the Federal bench should more compositely reflect the U.S. population they serve. Two of the larger U.S. subpopulations served by the Federal judiciary are blacks and Hispanics. Accordingly, this mini brief lists chronologically and cumulatively the appointments of blacks and Hispanics to the Federal bench, which includes the U.S.Supreme Court, Circuit Courts of Appeals, and District courts.
Date: August 9, 1983
Creator: Bailey, Dorothy J
System: The UNT Digital Library
Population dose commitments due to radioactive releases from nuclear power plant sites in 1980 (open access)

Population dose commitments due to radioactive releases from nuclear power plant sites in 1980

Population radiation dose commitments have been estimated from reported radionuclide releases from commercial power reactors operating during 1980. In addition doses derived from the shutdown reactors at the Three Mile Island site were included. Fifty-year dose commitments from a one-year exposure were calculated from both liquid and atmospheric releases for four population groups (infant, child, teen-ager and adult) residing between 2 and 80 km from each site. This report tabulates the results of these calculations, showing the dose commitments for both liquid and airborne pathways for each age group and organ. Also included for each site is a histogram showing the fraction of the total population within 2 to 80 km around each site receiving various average dose commitments from the airborne pathways. The total dose commitment from both liquid and airborne pathways ranged from a high of 40 person-rem to a low of 0.02 person-rem with an arithmetic mean of 4 person-rem. The total population dose for all sites was estimated at 180 person-rem for the 96 million people considered at risk.
Date: August 1, 1983
Creator: Baker, D. A. & Peloquin, R. A.
System: The UNT Digital Library
Recovery Records of Adult Green Turtles Observed or Originally Tagged at French Frigate Shoals, Northwestern Hawaiian Islands (open access)

Recovery Records of Adult Green Turtles Observed or Originally Tagged at French Frigate Shoals, Northwestern Hawaiian Islands

From introduction: This report presents a complete and concise record of tag recoveries for the adult Hawaiian green turtle, Chelonia mydas, made from 1973 through 1982 in association with the breeding colony of French Frigate Shoals (FFS).
Date: August 1983
Creator: Balazs, George H.
System: The UNT Digital Library
Estimating long-term mean winds from short-term wind data (open access)

Estimating long-term mean winds from short-term wind data

The estimation of long-term mean winds from short-term data is especially important in the area of wind energy. It is desirable to obtain reliable estimates of the long-term wind speed from as short a period of on-site measurements as possible. This study examined seven different methods of estimating the long-term average wind speed and compared the performance of these techniques. Three linear, three weather pattern, and one eigenvector methods were compared for measurement periods ranging from 3 months to 36 months. Average errors, both relative and absolute, and the rms errors in the techniques were determined. The best technique for less than 12 months of measurement was the eigenvector method using weekly mean wind speeds. However, this method was only slightly better than the linear adjusted method. When 12 or more months of data were used, the difference in errors between techniques was found to be slight.
Date: August 1, 1983
Creator: Barchet, W. R. & Davis, W. E.
System: The UNT Digital Library
Internal environmental protection audits: a suggested guide for US Department of Energy facilities (open access)

Internal environmental protection audits: a suggested guide for US Department of Energy facilities

This manual has been prepared for use by any DOE facility as an aid for conducting an internal environmental-protection audit. The manual is organized in modular format, with each module covering a separate area of environmental protection. The questions within each module were developed from existing DOE orders, executive orders, federal statutes, and Environmental Protection Agency (EPA) regulations issued pursuant to specific environmental legislation. A bibliography of such legislation is included at the end of this section. Each module also includes questions about a facility's use of industrial standards of practice.
Date: August 1, 1983
Creator: Barisas, S.; Polich, J.; Habegger, L. & Surles, T.
System: The UNT Digital Library
Detailed modeling of microwave energy deposition in EBT devices (open access)

Detailed modeling of microwave energy deposition in EBT devices

Ray-tracing studies have been combined with a simple wave power balance model to provide a complete, albeit approximate, description of microwave power deposition in the ELMO Bumpy Torus (EBT-I), EBT-Scale (EBT-S), and EBT Proof-of-Principle (EBT-P) devices. Electron cyclotron absorption of ordinary and extraordinary waves by the combined core plasma and relativistic annuli is calculated using a fully relativistic damping package developed for the RAYS geometrical optics code. The rays are traced in finite-beta bumpy cylinder plasma equilibria that are obtained from the Oak Ridge National Laboratory (ORNL) two-dimensional (2-D) equilibrium code. These results for direct, single-pass absorption are combined with results from a statistical model for the deposition of multiply reflected and mode-converted waves to obtain estimates of the power deposited in the core, surface, and annulus plasma components. Wave absorption by the annuli and by the core components at the fundamental and second harmonic resonances, reflection and Budden tunneling of the extraordinary mode at the right-hand cutoff, and conversion between ordinary and extraordinary modes upon wall reflection are the processes included in the power balance model. Experimental measurements of wave power flux on the cavity wall in EBT-S made with a simple microwave calorimeter are in good agreement with …
Date: August 1, 1983
Creator: Batchelor, D.B.; Rasmussen, D.A. & Goldfinger, R.C.
System: The UNT Digital Library
Description of Defense Waste Processing Facility reference waste form and canister. Revision 1 (open access)

Description of Defense Waste Processing Facility reference waste form and canister. Revision 1

The Defense Waste Processing Facility (DWPF) will be located at the Savannah River Plant in Aiken, SC, and is scheduled for construction authorization during FY-1984. The reference waste form is borosilicate glass containing approx. 28 wt % sludge oxides, with the balance glass frit. Borosilicate glass was chosen because of its high resistance to leaching by water, its relatively high solubility for nuclides found in the sludge, and its reasonably low melting temperature. The glass frit contains about 58% SiO/sub 2/ and 15% B/sub 2/O/sub 3/. Leachabilities of SRP waste glasses are expected to approach 10/sup -8/ g/m/sup 2/-day based upon 1000-day tests using glasses containing SRP radioactive waste. Tests were performed under a wide variety of conditions simulating repository environments. The canister is filled with 3260 lb of glass which occupies about 85% of the free canister volume. The filled canister will generate approx. 470 watts when filled with oxides from 5-year-old sludge and 15-year-old supernate from the sludge and supernate processes. The radionuclide content of the canister is about 177,000 ci, with a radiation level of 5500 rem/h at canister surface contact. The reference canister is fabricated of standard 24-in.-OD, Schedule 20, 304L stainless steel pipe with a …
Date: August 1, 1983
Creator: Baxter, R.G.
System: The UNT Digital Library
Mathematics and statistics research progress report, period ending June 30, 1983 (open access)

Mathematics and statistics research progress report, period ending June 30, 1983

This report is the twenty-sixth in the series of progress reports of Mathematics and Statistics Research of the Computer Sciences organization, Union Carbide Corporation Nuclear Division. Part A records research progress in analysis of large data sets, applied analysis, biometrics research, computational statistics, materials science applications, numerical linear algebra, and risk analysis. Collaboration and consulting with others throughout the Oak Ridge Department of Energy complex are recorded in Part B. Included are sections on biological sciences, energy, engineering, environmental sciences, health and safety, and safeguards. Part C summarizes the various educational activities in which the staff was engaged. Part D lists the presentations of research results, and Part E records the staff's other professional activities during the report period.
Date: August 1, 1983
Creator: Beauchamp, J. J.; Denson, M. V.; Heath, M. T.; Lever, W. E. & Wilson, D. G.
System: The UNT Digital Library
Statistical sampling plan for the TRU waste assay facility (open access)

Statistical sampling plan for the TRU waste assay facility

Due to limited space, there is a need to dispose appropriately of the Oak Ridge National Laboratory transuranic waste which is presently stored below ground in 55-gal (208-l) drums within weather-resistant structures. Waste containing less than 100 nCi/g transuranics can be removed from the present storage and be buried, while waste containing greater than 100 nCi/g transuranics must continue to be retrievably stored. To make the necessary measurements needed to determine the drums that can be buried, a transuranic Neutron Interrogation Assay System (NIAS) has been developed at Los Alamos National Laboratory and can make the needed measurements much faster than previous techniques which involved ..gamma..-ray spectroscopy. The previous techniques are reliable but time consuming. Therefore, a validation study has been planned to determine the ability of the NIAS to make adequate measurements. The validation of the NIAS will be based on a paired comparison of a sample of measurements made by the previous techniques and the NIAS. The purpose of this report is to describe the proposed sampling plan and the statistical analyses needed to validate the NIAS. 5 references, 4 figures, 5 tables.
Date: August 1, 1983
Creator: Beauchamp, J. J.; Wright, T.; Schultz, F. J.; Haff, K. & Monroe, R. J.
System: The UNT Digital Library
Catalog of the Oak Ridge National Laboratory Meteorological Tape Library (open access)

Catalog of the Oak Ridge National Laboratory Meteorological Tape Library

This report gives a complete inventory of the data tapes in the ORNL Meteorological Tape Library (OMTL). The attributes of each tape, including location of the weather station (city and state), station number, standard data format, dates covered, data set name(s), and job control language considerations (record format, record length, blocksize, tape label, and tape density), are listed for each tape. In addition, a description of some of the special characteristics of each of the available standard meteorological data formats is presented.
Date: August 1, 1983
Creator: Bell, M. A.
System: The UNT Digital Library
Power tests of the Fermilab Lithium Lens for antiproton collection (open access)

Power tests of the Fermilab Lithium Lens for antiproton collection

A prototpye Lithium Lens to be used for the collection of antiprotons in the Fermilab Tevatron I project has been constructed. Some of the fabrication details, the procedure for lithium filling and the results of the initial operation are discussed.
Date: August 1, 1983
Creator: Biallas, G.; Dugan, G.; Hangst, J.; Hanson, R.; Hojvat, C.; Lange, F. et al.
System: The UNT Digital Library
Idaho: basic data for thermal springs and wells as recorded in GEOTHERM. Part B (open access)

Idaho: basic data for thermal springs and wells as recorded in GEOTHERM. Part B

This compilation contains chemical data for geothermal fluids in Idaho available as of December, 1981. The 951 records contain data on location, sample description, analysis type, collection condition, flow rates, and the chemical and physical properties of the fluid. Stable and radioactive isotope data are occasionally available. 6 refs.
Date: August 1, 1983
Creator: Bliss, J. D.
System: The UNT Digital Library
Seismic Safety Margins Research Programs. Assessment of potential increases in risk due to degradation of steam generator and reactor coolant pump supports. [PWR] (open access)

Seismic Safety Margins Research Programs. Assessment of potential increases in risk due to degradation of steam generator and reactor coolant pump supports. [PWR]

During the NRC licensing review for the North Anna Units 1 and 2 pressurized-water reactors (PWRs), questions were raised regarding the potential for low-fracture toughness of steam-generator and reactor-coolant-pump supports. Because other PWRs may face similar problems, this issue was incorporated into the NRC Program for Resolution of Generic Issues. The work described in this report was performed to provide the NRC with a quantitative evaluation of the value/impact implications of the various options of resolving the fracture-toughness question. This report presents an assessment of the probabilistic risk associated with nil-ductility failures of steam-generator and reactor-coolant-pump structural-support systems during seismic events, performed using the Seismic Safety Margins Research Program codes and data bases.
Date: August 1, 1983
Creator: Bohn, M. P.; Wells, J. E.; Shieh, L. C.; Cover, L. E. & Streit, R. L.
System: The UNT Digital Library
Magnetic-island formation (open access)

Magnetic-island formation

The response of a finite conductivity plasma to resonant magnetic perturbations is studied. The equations, which are derived for the time development of magnetic islands, help one interpret the singular currents which occur under the assumption of perfect plasma conductivity. The relation to the Rutherford regime of resistive instabilities is given.
Date: August 1, 1983
Creator: Boozer, A. H.
System: The UNT Digital Library
Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report for 1982 (open access)

Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report for 1982

Research programs on lead-acid batteries are reported that cover active materials utilization, active material integrity, and some technical support projects. Processing problems were encountered and corrected. Components and materials, a lead-plastic composite grid, cell designs, and deliverables are described. Cell testing is discussed, as well as battery subsystems, including fuel gage, thermal management, and electrolyte circulation. (LEW)
Date: August 1, 1983
Creator: Bowman, D.E.
System: The UNT Digital Library
Space Nuclear-Safety Program progress report, February 1983 (open access)

Space Nuclear-Safety Program progress report, February 1983

This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Special Nuclear Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions may change as the work continues.
Date: August 1, 1983
Creator: Bronisz, S. E.
System: The UNT Digital Library
Functional Conceptual Design Criteria - 5-MW/sub e/ salt-gradient solar pond power plant at Great Salt Lake (open access)

Functional Conceptual Design Criteria - 5-MW/sub e/ salt-gradient solar pond power plant at Great Salt Lake

The purpose of this solar pond plant facility would be to provide valid data on the cost, operation, and reliability of salt-gradient solar ponds as a means of producing power. A general facility description is given which includes design code requirements, site selection, site characteristics, and site-specific design requirements. Functional requirements discussed include: civil-structural; mechanical; electrical; and control, instrumentation and alarms. Occupational and environmental safety, security, and quality assurance are also discussed.
Date: August 1, 1983
Creator: Brown, L. M.; Barnhart, J. S.; Cavola, R. G.; Drost, M. K.; Hauser, S. G. & Johnson, B. M.
System: The UNT Digital Library
TMRBAR: a code to calculate plasma parameters for tandem-mirror reactors operating in the MARS mode (open access)

TMRBAR: a code to calculate plasma parameters for tandem-mirror reactors operating in the MARS mode

The purpose of this report is to document the plasma power balance model currently used by LLNL to calculate steady state operating points for tandem mirror reactors. The code developed from this model, TMRBAR, has been used to predict the performance and define supplementary heating requirements for drivers used in the Mirror Advanced Reactor Study (MARS) and for the Fusion Power Demonstration (FPD) study. The equations solved included particle and energy balance for central cell and end cell species, quasineutrality at several cardinal points in the end cell region, as well as calculations of volumes, densities and average energies based on given constraints of beta profiles and fusion power output. Alpha particle ash is treated self-consistently, but no other impurity species is treated.
Date: August 30, 1983
Creator: Campbell, R.B.
System: The UNT Digital Library