Serial/Series Title
Advanced Cuttings Transport Study Quarterly Report
8
MUSC Environmental Biosciences Progress Report
8
NOx Control Options and Integration for US Coal Fired Boilers Quarterly Report
8
Establishment of an Environmental Control Technology Laboratory With a Circulating Fluidized-Bed Combustion System Quarterly Report
5
Radioisotope Distribution Program Progress Report
5
Fiscal Year 2001
4
High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report
4
An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery From the Complex Monterey Reservoir of South Ellwood Field, Offshore California, Quarterly Report
3
Carbon Sequestration on Surface Mine Lands Quarterly Report
3
Differential Soil Impedance Obstacle Detection Quarterly Report
3
89 More
Country
States
Decade
Year
Month
Day
Language
7,002 Matching Results
Results open in a new window/tab.
Framework for monitoring the social and economic impacts associated with the construction of the Skagit Nuclear Project in Skagit County, Washington
The paper discusses an information system which has been developed to monitor the social and economic impacts associated with the construction of twin nuclear reactors in Skagit County, Washington, by Puget Sound Power and Light Company. The monitoring system has been specifically designed to track the social and economic impacts of the Skagit Nuclear Project as they occur.
Date:
September 30, 1977
Creator:
Merwin, D. J. & Greene, M.
Object Type:
Report
System:
The UNT Digital Library
Duct Systems in Large Commercial Buildings: Physical Characterization, Air Leakage, and Heat Conduction Gains
None
Date:
March 30, 1999
Creator:
Fisk, William J.; Delp, Woody W.; Diamond, Rick C.; Dickerhoff, Darryl J.; Levinson, Ronnen M.; Modera, Mark P. et al.
Object Type:
Article
System:
The UNT Digital Library
Selective flotation of fossil resin from western coal
Economic analysis of this fossil resin project mainly focused on the flotation plant which is intended to be designed with data obtained from the current proof-of-concept flotation test program. It is believed that the analysis of this step is fairly accurate. The other two economic aspects of fossil in resin recovery/utilization are refining and marketing. Cost data used for refining were from an estimated base and are believed to have a large variance. Marketing data used were obtained from two independent marketing studies which were made available on confidentiality basis. Nevertheless, the data used are believed to be fairly accurate with respect to the market potential.
Date:
March 30, 1992
Creator:
Jensen, G. F. & Miller, J. D.
Object Type:
Report
System:
The UNT Digital Library
Definition of requirements for geothermal power conversion system studies
Candidate power conversion systems and criteria for comparing these systems are listed. The elements of each conceptual design and standard approaches to equipment design are described. The methods used to calculate heat and mass balances and the data used in the calculations are described. The method used in developing the economics of each system is described and factors such as construction wage rates common to all systems are included. Standard methods for developing the conceptual designs and corresponding economics are defined so that the results of each system study can be readily compared to those of the others. The candidate conversion systems are: multistage flash/binary; two stage flash with scrubbing; total flow; multistage flash/direct contact (Bechtel patented process); four stage flash/binary; binary with direct contact heat exchangers; hybrid-flash/binary; hybrid-flash/total flow; and flash/dual cycle binary. (MHR)
Date:
June 30, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Off-nadir optical remote sensing from satellites for vegetation identification
Today's satellite remote sensing systems rely heavily on spectral signatures for scene identification from nadir observations. We propose to use angular signatures as complementary scene identifiers when off-nadir sensing is possible. Specifically, the hot spot (Heiligenschein) of plant canopies is recognized as an atmosphere-invariant angular reflectance signature that carries information about the plant stand architecture which may be useful for instant crop identification from off-nadir satellite measurements.
Date:
May 30, 1986
Creator:
Gerstl, S.A.W.
Object Type:
Article
System:
The UNT Digital Library
Design of a separator/neutralizer to limit impurities and non-primary species in the Mirror Fusion Test Facility
The optimum plasma for the tandem Mirror Fusion Test Facility (MFTF-B) at Lawrence Livermore National Laboratory (LLNL) is very sensitive to heavy contaminates, such as oxygen and metals. Unfortunately the current neutral beam sources generate not only high energy deuterium particles but also high energy oxygen particles. A new MFTF-B separator/neutralizer has been designed to filter out the unwanted oxygen and allow only primary species neutrals to reach the plasma.
Date:
November 30, 1983
Creator:
Goldner, A.I.
Object Type:
Article
System:
The UNT Digital Library
Reactor Materials Study. Research and Development of Metal Hydrides. Quarterly Report No. 4 for July 1, 1959 to September 30, 1959
Activities during the period were directed primarily toward determination of the engineering properties of hydrided materials. The tensile strength and elongation, thermal expansion, thermal conductivity, and heat capacity of ZrH were determined as functions of temperature and H content. Preliminary results of Ti-base material studies indicate that these materials can be used for shielding and structural materials with the incorporation of rare earth hydrides. A summary of the work from Oct. l958 to Sept. 1959 is included. (J.R.D.)
Date:
October 30, 1959
Creator:
Beck, R. L.
Object Type:
Report
System:
The UNT Digital Library
Polarizability corrections in stimulated Raman propagation
Traditional descriptions of stimulated Raman scattering relate the various Stokes and anti-Stokes fields to the incident pump field by means of a polarizability (tensor). This description is usable for pulsed radiation but it fails when the pump carrier frequency coincides with a resonant frequency of the medium. We here describe a simple procedure for correcting the traditional polarizability approximation for pulse envelopes so as to account for effects of finite pump bandwidth. The correction amounts to the introduction of an auxiliary field envelope that incorporates pump dispersion. We apply this procedure to the equations for a degenerate, Doppler broadened ensemble of three-level atoms, in which the uppermost (virtual) level is close to resonance with the pump carrier frequency. This system becomes a two-level Raman system, but with a correction to the Raman Hamiltonian and the propagation equation. The plane-wave propagation equations presented include dispersive as well as Raman effects, and allow arbitrary combinations of field polarizations. We comment on several incidental aspects of Raman propagation, including dynamic Stark shifts, sublevel averages and fluence equations.
Date:
July 30, 1991
Creator:
Shore, B. W.; Johnson, M. A. & Lowder, S.
Object Type:
Report
System:
The UNT Digital Library
Coal surface control for advanced fine coal flotation
The primary objective in the scope of this research project is to develop advanced flotation methods for coal cleaning in order to achieve near total pyritic-sulfur removal at 90% Btu recovery, using coal samples procured from three major US coal seams. Concomitantly, the ash content of these coals is to be reduced to 6% or less. Investigation of mechanisms for the control of coal and pyrite surfaces prior to fine coal flotation is the main aspect of the project objectives. The results of this research are to be made available to ICF Kaiser Engineers who are currently working on the Engineering Development of Advanced Flotation under a separate contract with DOE under the Acid Rain Control Initiative program. A second major objective is to investigate factors involved in the progressive weathering and oxidation of coal that had been exposed to varying degrees of weathering, namely, open to the atmosphere, covered and in an argon-inerted'' atmosphere, over a period of twelve months. After regular intervals of weathering, samples of the three base coals (Illinois No. 6, Pittsburgh No. 8 and Upper Freeport PA) were collected and shipped to both the University of Pittsburgh and the University of California at Berkeley for …
Date:
July 30, 1991
Creator:
Fuerstenau, D. W.; Sastry, K. V. S.; Hanson, J. S.; Diao, J.; De, A.; Sotillo, F. et al.
Object Type:
Report
System:
The UNT Digital Library
Stream sediment detailed geochemical survey for Date Creek Basin, Arizona
Results of the Date Creek Basin detailed geochemical survey are reported. Field and laboratory data are reported for 239 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Based on stream sediment geochemical data, significant concentrations of uranium are restricted to the Anderson Mine area. The 84th percentile concentrations of U-FL, U-NT, and U-FL/U-NT combined with low thorium/U-NT values reflect increased mobility and enrichment of uranium in the carbonate host rocks of that area. Elements characteristically associated with the uranium mineralization include lithium and arsenic. No well defined diffusion halos suggesting outliers of similar uranium mineralization were observed from the stream sediment data in other areas of the Date Creek Basin. Significant concentrations of U-FL or U-NT found outside the mine area are generally coincident with low U-FL/U-NT values and high concentrations of zirconium, titanium, and phosphorus. This suggests that the uranium is related to a resistate mineral assemblage derived from surrounding crystalline igneous and metamorphic rocks.
Date:
June 30, 1980
Creator:
Butz, T. R.; Tieman, D. J.; Grimes, J. G.; Bard, C. S.; Helgerson, R. N. & Pritz, P. M.
Object Type:
Report
System:
The UNT Digital Library
Transport and thermodynamic properties of solids. Final report
During the last year of operation the principal area of research has been ternary diffusion in solid solution alloys. Specific research projects deal with diffusion in the Cu--Ni--Zn and Fe--Ni--Al systems. Research activities in these areas are summarized.
Date:
November 30, 1977
Creator:
Grace, R.E. & Dayananda, M.A.
Object Type:
Report
System:
The UNT Digital Library
Electron--proton interactions at ISABELLE. [Possible experimental parameters, 400 GeV, cross sections, kinematics]
A calculation of kinematics and cross sections is done for an investigation of the physics possibilities specific to the study of weak interactions in electron-proton interactions at Isabelle at 400 GeV, with an electron/positron storage ring of 20 GeV. (JFP)
Date:
August 30, 1977
Creator:
Limon, P.J. & Humphrey, J.W.
Object Type:
Article
System:
The UNT Digital Library
Inspection of surveillance equipment and activities at DOE Field Office, Richland
The purpose of this inspection was to review surveillance activities by the Department of Energy's (DOE) Field Office, Richland (RL) and contractor employees at the RL Hanford site for efficiency and economy and compliance with laws and regulations. The scope included surveillance activities, procedures, training, types of surveillance equipment, and management controls over the equipment and activities. We also looked at Departmental policies and procedures regarding the equipment and activities. Allegations of illegal surveillance that came to our attention during the course of this inspection were referred to the Department of Justice. As part of our review, inspectors were on-site at RL from February 11, 1991, through March 1, 1991. Follow-up trips to RL were also made in April, May, and June 1991. We also conducted interviews at Albuquerque, Savannah River, and Germantown of former RL employees and RL contractors who were on travel. Officials from DOE's Office of General Counsel (OGC), Office of Security Affairs, and Office of Safeguards and Security (S S) were also interviewed regarding the Department's purchase and possession of wiretapping and eavesdropping devices. We obtained 75 signed sworn statements from 55 individuals during the course of the inspection. 1 fig., 1 tab.
Date:
September 30, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Fundamentals of interruption in vacuum. Eighth progress report
In analyzing the behavior of a vacuum arc during interruption , a mathematical model has been set up to describe the events occurring in the interelectrode gap during interruption. The reliability of the results obtained using such a model depends on the accuracy of the initial assumptions made in setting up the model equations. Previous results obtained from the model analysis were compared to experimental data and it was found that there was a discrepancy close to current zero. To improve our model results some of the original model assumptions have been reconsidered in order to make the model more closely represent the physical reality of a vacuum arc.
Date:
May 30, 1980
Creator:
Greenwood, A. N. & Childs, S. E.
Object Type:
Report
System:
The UNT Digital Library
Model for ion confinement in a hot-electron tandem mirror anchor
Anisotropic, hot electrons trapped in local minimum-B wells have been proposed as MHD-stabilizing anchors to an otherwise axisymmetric tandem configuration. This work describes a model for plasma confinement between the anchors and the remainder of the system and calcuates the power loss implied by maintenance of this plasma.
Date:
September 30, 1980
Creator:
Baldwin, D.E.
Object Type:
Report
System:
The UNT Digital Library
ARTI Refrigerant Database
The Refrigerant Database consolidates and facilitates access to information to assist industry in developing equipment using alternative refrigerants. The underlying purpose is to accelerate phase out of chemical compounds of environmental concern. The database provides bibliographic citations and abstracts for publications that may be useful in research and design of air- conditioning and refrigeration equipment. The complete documents are not included, though some may be added at a later date. The database identifies sources of specific information on R-32, R-123, R-124, R- 125, R-134a, R-141b, R142b, R-143a, R-152a, R-290 (propane), R-717 (ammonia), ethers, and others as well as azeotropic and zeotropic blends of these fluids. It addresses polyalkylene glycol (PAG), ester, and other lubricants. It also references documents addressing compatibility of refrigerants and lubricants with metals, plastics, elastomers, motor insulation, and other materials used in refrigerant circuits.
Date:
April 30, 1992
Creator:
Calm, J.M.
Object Type:
Report
System:
The UNT Digital Library
A 3 TeV on 3 TeV proton-proton dedicated collider for Fermilab
The Fermilab Dedicated Collider proposed in May 1983 is a 2 TeV on 2 TeV p)bar p) collider. The expected luminosity is )approximately) 10/sup 31/ cm/sup (minus/2)sec/sup )minus/1) and the estimated cost is )approximately) $362M (FY-83 dollars). Since 1983 both the superconducting magnet and the particle detector technologies have advanced and the countenance of physics, hence the desired characteristics of new facilities have also altered somewhat. We want to show here that with the new magnet technology used for the SSC one can construct a 3 TeV on 3 TeV pp collider on the Fermilab site. This pp Dedicated Collider )PPDC) will have a luminosity of about 10/sub 33/cm/sup )minus/2)sec)sup)minus)1) and a cost only )approximately) 50)percent) more than that of the p)bar p) Dedicated Collider. 3 figs
Date:
March 30, 1988
Creator:
Teng, L.C.
Object Type:
Report
System:
The UNT Digital Library
MIT LMFBR blanket physics project progress report No. 7, July 1, 1975--September 30, 1976
Work during the period was devoted primarily to a range of analytical/numerical investigations, including evaluation of means to improve external blanket designs, beneficial attributes of the use of internal blankets, improved methods for the calculation of heterogeneous self-shielding and parametric studies of calculated spectral indices. Experimental work included measurements of the ratio of U-238 captures to U-235 fissions in a standard blanket mockup, and completion of development work on the radiophotoluminescent readout of LiF thermoluminescent detectors. The most significant findings were that there is very little prospect for substantial improvement in the breeding performance of external blankets, but internal blankets continue to show promise, particularly if they are used in such a way as to increase the volume fraction of fuel inside the core envelope. An improved equivalence theorem was developed which may allow use of fast reactor methods to calculate heterogeneously self-shielded cross sections in both fast and thermal reactors.
Date:
September 30, 1976
Creator:
Driscoll, M.J. (ed.)
Object Type:
Report
System:
The UNT Digital Library
Demonstration of a free piston Stirling engine driven linear alternator, phase I report
The results of the work performed under Phase I of the free piston Stirling engine demonstrator program are described. The objective of the program is to develop a 2 kW free piston Stirling engine/linear alternator energy conversion system, for an isotopic heat source, with a greater than 30% overall efficiency. Phase I was a 15-month effort to demonstrate the feasibility of the system through analysis and experimental testing of the individual components. An introduction to Stirling engines and the details of the tasks completed are presented in five major sections: (1) introduction to Stirling engine; (2) preliminary design of an advanced free piston Stirling demonstrator engine; (3) design and test of a 1 kWE output linear alternator; (4) test of a model free piston Stirling engine; and (5) development of a free piston Stirling engine computer simulation code.
Date:
March 30, 1977
Creator:
Goldwater, B.; Piller, S.; Rauch, J. & Cella, A.
Object Type:
Report
System:
The UNT Digital Library
Synthesis of block copolymers of methyl siloxane, phenyl siloxane, vinyl siloxane, etc
Synthesis of homo poly(dimethylsiloxane) PDMS, homo poly(diphenylsiloxane PDPS, and di- and tri- block copolymers of PDMS and PDPS have been carried out by anionic living polymerization, using the following reagents: hexamethylcyclotrisiloxane, HMTS and hexaphenylcyclotrisiloxane, HPTS (monomers), n-BuLi and dilithium diphenyldisilanolate, DLS (initiators), DMSO and THF (promoters) and Toluene (solvent). Lithium based catalysts are used in order to minimize siloxane rearrangement (equilibration) reactions.
Date:
June 30, 1979
Creator:
Ibemesi, J.A. & Meier, D.J.
Object Type:
Report
System:
The UNT Digital Library
Electrical design of TNS
The electrical design of the ORNL-Westinghouse next step (TNS) fusion reactor was begun in 1976, using a set of ground rules which were based on the overall program objectives. These objectives were to identify the design of reasonably-priced reactors, which would achieve ignition and be technology forcing. The term ''technology forcing'' was understood to mean the desirability of a large number of ignited D-T pulses and the incorporation of superconducting toroidal field (TF) coils, if at all possible. A trade study methodology was developed to compare different machine sizes and TF coil technologies and to aid in the selection of system and subsystem design approaches. The logic which led from the program objectives to the design ground rules and from the ground rules to the circuit selection is described below. The circuit design approaches were generalized and these models were incorporated into a computer program (COAST) which was used to examine the cost of overall tokamak systems as key design parameters were varied.
Date:
September 30, 1977
Creator:
Heck, F. M.; Schultz, J. H. & Smeltzer, G. S.
Object Type:
Article
System:
The UNT Digital Library
Policy issues in promoting urban conservation. Task IV
A brief overview is presented of the economic status of US cities. Opportunities for efficient use of the existing urban structure are described and results of a city's overall conservation and revitalization effort are briefly noted. (MCW)
Date:
September 30, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
5cm aperture dipole studies
The results obtained during the evolution of the design, construction, and testing program of the design ''B'' dipole are presented here. Design ''B'' is one of the original three competing designs for the Superconducting Super Collider ''SSC'' arc dipoles. The final design parameters were as follows: air cored (less than a few percent of the magnetic field derived from any iron present), aluminum collared, two layered winding, 5.5T maximum operating field, and a 5 cm cold aperture. There have been fourteen 64 cm long 5 cm aperture model dipoles cold tested (at 4.3K and less) in this program so far. There was a half length full size (6m) mechanical analog (M-10) built and tested to check the cryostat's mechanical design under ramping and quench conditions. Several deviations from the ''Tevatron'' dipole fabrication technique were incorporated, for example the use of aluminum collars instead of stainless steel. The winding technique variations explored were ''dry welding,'' a technique with the cable covered with Kapton insulation only and ''wet winding'' where the Kapton was covered with a light coat of ''B'' stage epoxy. Test data include quench currents, field quality (Fourier multipole co-efficients), coil magnetization, conductor current performance, and coil loading. Quench current, …
Date:
September 30, 1986
Creator:
McInturff, A.D.; Bossert, R.; Carson, J.; Fisk, H.E.; Hanft, R.; Kuchnir, M. et al.
Object Type:
Article
System:
The UNT Digital Library
MOUND LABORATORY MONTHLY PROGRESS REPORT FOR MAY 1961 ON PLASTICS, RADIOELEMENTS, ISOTOPE SEPARATION, AND REACTOR FUELS
tems were cast and cured. Results of chemical tests on aa epoxy curlang exudate are included. Comparison of solvent effects on retention of radioelements by stainless steel was started and data are tabulated for Ac/sup 227/, Th/sup 227/, a nd Ra/sup 22//sub 3/. Work on protactinium was resumed after suspension of this project in 1960. Methods for preparation of small quantities of highly enriched U isotopes are being examined. Included in the survey are chemical exchange, electromagnetic separation, gaseous and liquid thermal diffusion, gas centrifugation, and photochemical techniques. Continued investigation of viscosities of La and Pr for use in Pu alcontinued along with studies of Pu bearing glass fibers. (J.R.D.)
Date:
May 30, 1961
Creator:
Eichelberger, J.F.
Object Type:
Report
System:
The UNT Digital Library