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Fiscal Year 1997
11
Fiscal Year 2000
9
Fiscal Year 1998
8
Winter Fuels Report
8
Chemical Processing Department Monthly Report
7
OIT Best Practices
7
ACRH Semiannual Report on Medical Research
6
Energy Star Lighting Verification Program Semi-Annual Report
6
Fiscal Year 2006
6
LWBR Development Program
6
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Miscible/Immiscible Gas Injection Processes: Final Report
Final report
Date:
March 1998
Creator:
Fahy, L. J.; Mones, C. G.; Johnson, L. A., Jr. & Carlson, F. M.
Object Type:
Report
System:
The UNT Digital Library
Process Support and Development for Compcoal: Final Report
Final report
Date:
March 1998
Creator:
Merriam, Norman
Object Type:
Report
System:
The UNT Digital Library
Economic Study of the San Rafael River Desert Mining District Emery and Grand Counties, Utah
Report documenting a geologic study of the San Rafael River Desert Mining District, including background describing the stratigraphy and geologic history, and the economic geology study containing more extensive descriptions of the area's mineralogy and uranium ores, including a description of mining and impacts.
Date:
March 1957
Creator:
Young, Robert G. (Robert Glen), 1923-2011; Million, I. & Hausen, Donald M.
Object Type:
Report
System:
The UNT Digital Library
Investigations of the inductively coupled plasma source for analyzing NURE water samples at the Los Alamos Scientific Laboratory
A 3.4-meter direct-reading spectrograph is being used with an inductively coupled plasma source for the simultaneous determination of Ag, Bi, Cd, Cu, Nb, Ni, Pb, Sn, and W in water samples. We have attached a small digital computer to the system in order to obtain intensity data on each element once a second. After the intensities during a run on a sample have stabilized, the computer records the intensity data and outputs the average concentration for each element. To approach the published detection limits, a peristaltic pump must be used to force the water sample into the usual cross-flow nebulizer. We have studied several different nebulizer designs with the goal of improving efficiency and hence sensitivity. One design, the fritted-disk nebulizer, has an efficiency over 60 percent, as compared with the 5 percent efficiency of the original nebulizer.
Date:
March 1, 1977
Creator:
Apel, C. T.; Bieniewski, T. M.; Cox, L. E. & Steinhaus, D. W.
Object Type:
Article
System:
The UNT Digital Library
Tritium effluent control project progress report, July--September 1975. [Tritiated liquid waste decontamination by molecular excitation, electrolysis of high-level tritiated water, and catalytic exchange detritiation studies]
In the Tritiated Liquid Waste Decontamination (Molecular Excitation) program, it was found that a 1/4'' Nd:YAG amplifier and a Faraday rotator isolator must be added to the oscillator to obtain the required power for the laser excitation experiments. The isotopic selectivity of the two-photon dissociation process was examined in more detail. The selectivity or ratio of HTO to H/sub 2/O molecules that are photodissociated was found to be on the order of 25, which is inadequate for application to large-scale detritiation projects, e.g., nuclear fuel reprocessing plant waste. The selectivity is such that most of the laser energy is wasted in photodissociation of H/sub 2/O. This obstacle may be overcome by pumping more vibrational energy into the HTO molecules. Various schemes towards this end are being considered. Extensive ab initio calculations on the potential surface for the hydrogen atom-water exchange reaction have been carried out. The energy barrier is calculated to be 38 1/2 kcal/mole, which implies that the exchange reaction T + H/sub 2/O ..-->.. HTO + H is at least 10/sup 9/ times slower than the exchange reaction T + H/sub 2/ ..-->.. HT + H. Calculations were also performed on the analogous hydrogen atom-hydrogen fluoride exchange reaction. …
Date:
March 19, 1976
Creator:
Kershner, Carl J. & Bixel, John C.
Object Type:
Report
System:
The UNT Digital Library
Coalescence instability of magnetic islands
The stability of a periodic magnetic island structure was studied using the ideal MHD equations. An instability is found which describes the tendency toward coalescence of parallel currents in the neighboring islands. It is expected that this instability will proceed at a fast MHD rate as long as the forces driving the instability can overcome the stabilizing forces due to the compression of the magnetic field between the islands. Beyond that phase, resistivity is expected to dominate the tendency toward island coalescence. Island coalescence of this kind can explain why in the observation of tearing mode instabilities in tokamaks, only the modes with minimum values of m and n are seen.
Date:
March 1, 1976
Creator:
Finn, J. M. & Kaw, P. K.
Object Type:
Report
System:
The UNT Digital Library
Interim report on the creepdown of Zircaloy fuel cladding
This report describes the creepdown phenomenon in Zircaloy fuel cladding and the methods by which it will be measured and analyzed. Instrumentation for monitoring radial deformation in the cladding is described in detail--in terms of theory, design, and stability. The programs that control the microcomputer are listed, both to document the level of sophistication of the instrumentation and to indicate the flexibility of the test equipment.
Date:
March 3, 1977
Creator:
Hobson, D. O. & Dodd, C. V.
Object Type:
Report
System:
The UNT Digital Library
Data base management system (ADBMS) installation guide
This manual provides rough guidelines to aid a programer in installing ADBMS at a computer installation. ADBMS is a set of subroutines which together form a nucleus of a CODASYL-based data base management system. The use of this system is explained in detail in ''ADBMS Users Guide'' by E.W. Berss, Lawrence Livermore Laboratory, Feb. 1977.
Date:
March 17, 1977
Creator:
Birss, E. W.
Object Type:
Report
System:
The UNT Digital Library
Radiative Properties of Ash and Slag
Thermal radiation plays a key role in the operation and efficiency of combustion systems, accounting for over 90% of the heat transfer. The analysis of radiative heat transfer in coal-fired boilers, combustion chambers and other energy systems requires accounting for the effects of inorganic deposits on bounding surfaces and of entrained particulates, such as pulverized coal, char, and fly-ash. These effects can be predicted; however, the accuracy in predicting the radiative properties of entrained pyrolysis (ash) and deposit layers (slag) is limited by inaccurate knowledge of the physical/chemical properties of the materials over a range of material temperatures and radiative wavelengths that is representative of conditions in practical combustion systems. The objective of this project is to make laboratory measurements of the radiative properties of extracted ash and slag deposit samples.
Date:
March 1, 1990
Creator:
Solomon, P. R. & Markham, J. R.
Object Type:
Report
System:
The UNT Digital Library
pi. /sub. mu. /sub 2//: an absolute pion beam flux monitor
A two-arm ..pi../sub ..mu../sub 2///beam monitor telescope provides one possible means of monitoring pion (P/sub ..pi../ less than 400 MeV/c) beam fluxes to better than 1 percent.
Date:
March 1, 1976
Creator:
Wadlinger, E. A.
Object Type:
Report
System:
The UNT Digital Library
Semiautomatic MDF deburring tool. [Mild detonating fuse]
A device for semiautomatically deburring the ends of lengths of MDF (mild detonating fuse) was developed by the Automation Development group at Mound Laboratory. The device performs the deburring function by cutting a 0.002 in. x 0.002 in. chamfer on the MDF with small rotating blades. This air-operated, semiautomatic device provides improvement over the manual method of removing burrs by reduction in time and operator strain. A time study is underway to determine the time saved which is expected to be about 75 percent.
Date:
March 31, 1976
Creator:
Simonton, W. L.
Object Type:
Report
System:
The UNT Digital Library
Properties for LMFBR safety analysis. [Thermodynamic, transport, mechanical]
This handbook brings together the most current data on thermodynamic, transport, and mechanical properties of reactor materials (fuel, coolant, structural material) for reactor safety analysis. NSMH (Nuclear Systems Materials Handbook) property code numbers and formats were used. The materials covered are UO/sub 2/, (U, Pu)O/sub 2/, Na, and Types 304 and 316 stainless steels. (DLC)
Date:
March 1, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Annual progress report FY 1976. [Numerical methods for time-dependent reactor dynamics]
This project is directed toward development of numerical methods suitable for the computer solution of problems in reactor dynamics and safety. Specific areas of research include methods of integration of the time-dependent diffusion equations by finite difference and finite element methods; representation of reactor properties by various homogenization procedures; application of synthesis methods; and development of response matrix techniques.
Date:
March 1, 1976
Creator:
Hansen, K. F. & Henry, A. F.
Object Type:
Report
System:
The UNT Digital Library
Cementing of geothermal wells. Progress report No. 4, January--March 1977
A coordinated program for the development of improved cements specifically designed for geothermal well applications was continued. Polymer cements (PC) have been identified as promising well cementing materials. Tests indicate that at temperatures above 218/sup 0/C (425/sup 0/C) only PC materials containing mixtures of silica and portland cement are durable to brine and steam. Differential thermal analysis (DTA) studies are underway to determine the reason. Tests are also being conducted on two monomer systems that may further extend the operating temperature range. (JGB)
Date:
March 1, 1977
Creator:
Steinbeg, M. & Kukacka, L. E.
Object Type:
Report
System:
The UNT Digital Library
DT fusion neutron irradiation of LLL Nb--1 Zr tensile specimens, BNL-LASL superconductor wires, BPNL wire-foil packet, ORNL magnesium oxide crystals, LASL spinel, YAG, Al/sub 2/O/sub 3/ and MgO, and LLL LiF and glass microscope cover slides
The DT fusion neutron irradiation of eight LLL Nb-1Zr tensile specimens, eleven BNL-LASL superconductor wires, one BPNL wire-foil packet, two ORNL magnesium oxide crystals, four LASL high purity single crystals, one each of spinel, YAG, Al/sub 2/O/sub 3/ and MgO, one LLL bicrystal of LiF and several LLL glass microscope cover slides is described. The sample position, beam-on time and dose record are given. The maximum neutron fluence on any sample was 2.51 x 10/sup 17/ neutrons/cm/sup 2/.
Date:
March 4, 1977
Creator:
MacLean, S. C.
Object Type:
Report
System:
The UNT Digital Library
Energy and technology review
A separate abstract was prepared for each of the four sections. Two of these abstracts are included in Energy Abstracts for Policy Analysis (EAPA). (MOW)
Date:
March 1, 1977
Creator:
Selden, R. W.; Crawford, R. B.; Cummings, K. L. & Prono, J. K. (eds.)
Object Type:
Report
System:
The UNT Digital Library
Data verification procedures. [For National Uranium Resource Evaluation Program]
The large amount of field and laboratory data collected by the Hydrogeochemical and Stream Sediment Reconnaissance Program contractors of the National Uranium Resource Evaluation (NURE) Program necessitates the use of computerized data verification procedures. The Oak Ridge National Laboratory data verification procedures consist of computerized checks of the validity of codes for every field of data reported. The verification procedures are part of an overall data evaluation system. Sample locations are checked from computerized plots of locations. Laboratory data ara analyzed statistically, and unusual samples are identified and selectively reanalyzed in the laboratory. The final verification step is the evaluation of the data by geologists to ensure the overall consistency of the reported results. The computerization of these procedures enables a rapid verification process. The following sections present an explanation of each aspect of data collection and a brief description of the data verification procedures used by the Oak Ridge program.
Date:
March 1, 1977
Creator:
Kane, V. E.
Object Type:
Article
System:
The UNT Digital Library
Algorithm for locating the extremum of a multi-dimensional constrained function and its application to the PPPL Hybrid Study
A description is presented of a general algorithm for locating the extremum of a multi-dimensional constrained function. The algorithm employs a series of techniques dominated by random shrinkage, steepest descent, and adaptive creeping. A discussion follows of the algorithm's application to a ''real world'' problem, namely the optimization of the price of electricity, P/sub eh/, from a hybrid fusion-fission reactor. Upon the basis of comparisons with other optimization schemes of a survey nature, the algorithm is concluded to yield a good approximation to the location of a function's optimum.
Date:
March 1, 1978
Creator:
Bathke, C.
Object Type:
Report
System:
The UNT Digital Library
Monthly progress report for February 1976 for the HTGR safety studies for the Division of Systems Safety, U. S. Nuclear Regulatory Commission
Progress is summarized in studies related to thermal analysis for the Vrain reactor, HEXEREI code development, and FLODIS results from the Vrain design basis depressurization accident.
Date:
March 1, 1976
Creator:
Sanders, J. P.
Object Type:
Report
System:
The UNT Digital Library
Energy budget of the volcano Stromboli, Italy. [Power potential of 100- to 1000 MW]
Data from eruption movies are used to construct a budget among various modes of energy transport for the volcano Stromboli. In its normal steady state eruption mode, Stromboli delivers approximately 1.1 MW of power to the surface by energy transport mechanisms other than conduction; conducted heat probably is of the order of 6 mW (for the part of the volcano above sea level). Of this 1.1 mW, approximately 60 percent of the eruption energy is carried in the thermal energy of ejected gas; approximately 20 percent by the thermal energy of ejected lava, and 20 percent by radiative heat transfer from the open vent. Energy transported in kinetic energy of the gas seismic energy and jet noise of acoustical energy is trivial. The probable thermal reserve of Stromboli could be quite large, perhaps sufficient to produce power in the 100- to 1000-MW range provided engineering capability existed to exploit it. The abundance of gas in the eruption medium implies that Stromboli is probably open to sea water. A simple model accounting for the observations and apparent flux of water into the magma yields an average apparent permeability of the volcano in the submicrodarcy range, very low values. These model values …
Date:
March 1, 1976
Creator:
McGetchin, T. & Chouet, B. A.
Object Type:
Report
System:
The UNT Digital Library
(Studies of ocean predictability at decade to century time scales using a global ocean general circulation model in a parallel competing environment). [Large Scale Geostrophic Model]
The first phase of the proposed work is largely completed on schedule. Scientists at the San Diego Supercomputer Center (SDSC) succeeded in putting a version of the Hamburg isopycnal coordinate ocean model (OPYC) onto the INTEL parallel computer. Due to the slow run speeds of the OPYC on the parallel machine, another ocean is being model used during the first part of phase 2. The model chosen is the Large Scale Geostrophic (LSG) model form the Max Planck Institute.
Date:
March 10, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Hanford wells
The Hanford Reservation contains about 2100 wells constructed from pre-Hanford Works to the present. As of Jan. 1976, about 1800 wells still exist, 850 of which were drilled to the groundwater table; 700 still contain water. This report provides the most complete documentation of these wells and supersedes all previous compilations, including BNWL-1739. (DLC)
Date:
March 1, 1976
Creator:
McGhan, V. L.; Myers, D. A. & Damschen, D. W.
Object Type:
Report
System:
The UNT Digital Library
U. S. energy flow in 1976
An energy flow diagram for the U.S. for 1976 is presented, and one for 1975 is included for comparison. Some significant differences between 1975 and 1976 are: total energy use increased 4.8 percent, almost reaching the record use of 1973; oil imports increased significantly to 15.5 quads, more than 20 percent above 1975, and almost 44 percent of our total oil use; coal and natural gas remained more or less constant; by the author's reckoning, the industrial sector was unique in that its energy use decreased somewhat due to conservation efforts; delivered nuclear power increased by 10.9 percent and a trend toward electrification continued with distributed electrical energy increasing by 6.1 percent. (MCW)
Date:
March 24, 1977
Creator:
Ramsey, W. J.
Object Type:
Report
System:
The UNT Digital Library
Study of fuel block collision in HTGR core
In analyzing the response of loosely stacked hexagonal blocks during a seismic event in the High-Temperature Gas Cooled Reactor (HTGR), a spring-mass-damper model was used to approximate the velocity and the impact configuration of core blocks and a finite element model was used to estimate the dynamic stress, the coefficient of restitution, and the contact time for the impact of two or more blocks. The latter approach is discussed.
Date:
March 1, 1977
Creator:
Tzung, F. K.
Object Type:
Article
System:
The UNT Digital Library