UNT Libraries Government Documents Department - 351 Matching Results

Search Results

open access

Ab initio effective core potentials including relativistic effects and their application to the electronic structure calculations of heavy atoms and molecules

Description: The effects of the 4f shell of electrons and the relativity of valence electrons are compared. The effect of 4f shell (lanthanide contraction) is estimated from the numerical Hartree-Fock (HF) calculations of pseudo-atoms corresponding to Hf, Re, Au, Hg, Tl, Pb and Bi without 4f electrons and with atomic numbers reduced by 14. The relativistic effect estimated from the numerical Dirac-Hartree-Fock (DHF) calculations of those atoms is comparable in the magnitude with that of the 4f shell of elec… more
Date: November 1, 1977
Creator: Lee, Y. S.
open access

AC Transmission Line Field Measurements

Description: The concern in recent years over the environmental effects of electric and magnetic fields from high voltage transmission lines has also focused attention on the accuracy of measurements of these fields. Electric field meters are discussed in terms of theory of operation, parameters affecting performance, meter performance under field and laboratory conditions, and calibration procedures. The performance and calibration of magnetic field meters is described. (LCL)
Date: November 1, 1977
Creator: Kotter, F. R. & Misakian, M.
open access

ACORN: a computer program for plotting fault trees. [In FORTRAN for CDC Cyber 74]

Description: A description and user instructions are presented for ACORN, a FORTRAN computer program for drawing fault trees. ACORN analyzes the input logical structure of a fault tree and provides data for CalComp plot of the tree. AND, OR, and INHIBIT gates are permitted, and basic events are drawn as diamonds, circles, or houses. Each component (gate or basic event) can have a descriptive label within a rectangle attached to the top of its respective symbol. Tree logic is input as a set of FORTRAN statem… more
Date: November 1, 1977
Creator: Carter, J. L.
open access

Acoustic absorption by the electron-hole liquid in germanium

Description: The absorption of ultrasonic acoustic waves by the electron-hole liquid that may be created in germanium at liquid helium temperatures by intense optical excitation was studied. This is a degenerate compensated Fermi liquid that exhibits the behavior of both classical dynamics in a force field, and quantum phenomena in a magnetic field. Results of theoretical and experimental studies of the interaction of the mobile liquid with a travelling acoustic wave force field, the attenuation of the wave… more
Date: November 1, 1977
Creator: Hansen, A.D.A.
open access

Additional development of a threshold evaluation system: management plan

Description: The efforts of the DOE Division of Buildings and Community Systems to assume the national leadership for research, development, and demonstration activities related to energy conservation in buildings and community systems are discussed. Contract objectives, presented in Section 2, include the technical goals and schedule and cost objectives of the contract. The organization structures of DOE/BCS and DYNATREND are displayed in Section 3. Moreover, the interface between the organizations is pres… more
Date: November 4, 1977
open access

Advanced gas cooled nuclear reactor materials evaluation and development program. Progress report, July 1, 1977--September 30, 1977

Description: Work covered includes an updated listing of the alloys selected for the screening tests, plus complete test specimen matrices for the screening program. The present design and construction status of the simulated reactor helium loops and testing and analysis facilities and equipment are discussed. Also covered are the loading matrices for the screening creep tests.
Date: November 14, 1977
open access

Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 1: Fremont Quadrangle (Nebraska and Iowa), Lincoln Quadrangle (Nebraska), Manhattan Quadrangle (Kansas), and Hutchinson Quadrangle (Kansas)

Description: First volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of four quadrangles in Iowa, Nebraska, and Kansas including documentation about data collection and analysis.
Date: November 1977
Creator: GeoMetrics, Inc.
Location: None
open access

Los Alamos Scientific Laboratory building cost index

Description: The Controller's budget request for FY-1979 established guidance for escalation rates at 6 to 8 percent for construction projects beyond FY-1976. The Los Alamos Scientific Laboratory (LASL) has chosen to use an annual construction escalation rate of 10 percent. Results of this study should contribute toward the establishment of realistic construction cost estimate totals and estimates of annual construction funding requirements. Many methods were used to arrive at the LASL escalation rate recom… more
Date: November 1, 1977
Creator: Lemon, G. D.; Morris, D. W. & McConnell, P. H.
open access

Anaerobic fermentation of simulated in-situ oil shale retort water

Description: The feasibility of removing soluble organics from oil shale retort water by anaerobic digestion with methane production was experimentally investigated. The following conclusions were made. The retort water studied had to be pretreated to remove toxic and add deficient constituents before it could be successfully treated with the anaerobic fermentation process. Pretreatment included pH adjustment to 7, ammonia reduction, and nutrient addition. A digested sludge from a conventional municipal sew… more
Date: November 1, 1977
Creator: Ossio, E. A.; Fox, J. P.; Thomas, J. F. & Poulson, R. E.
open access

Analysis of alkali metal boiler for fluidized bed applications

Description: The analytical methods used to determine the operating characteristics of alkali metal boilers coupled specifically to fluidized bed furnaces are detailed. Calculation methods are provided for both natural circulation boilers used with deep beds and horizontal tube, forced circulation boilers used in conjunction with shallow fluidized beds. Typical steady-state operating characteristics for boilers of both types being investigated in conjunction with the ORNL alkali metal topping cycle study ar… more
Date: November 1, 1977
Creator: Graves, R. L.
open access

Analysis of requirements for accelerating the development of geothermal energy resources in California

Description: Various resource data are presented showing that geothermal energy has the potential of satisfying a significant part of California's increasing energy needs. General factors slowing the development of geothermal energy in California are discussed and required actions to accelerate its progress are presented. Finally, scenarios for developing the most promising prospect in the state directed at timely on-line power are given. Specific actions required to realize each of these individual scenari… more
Date: November 15, 1977
Creator: Fredrickson, C.D.
open access

Annotated bibliography: hazard assessments for the geologic isolation of nuclear wastes. Final report. Center for Resource and Environmental Systems Studies report No. 41

Description: This report presents an annotated bibliography of risk assessments that are pertinent to constructing, operating, and decommissioning a federal repository for the underground storage of radioactive waste. This might be considered as a first phase in an assessment of the risks associated with radioactive waste storage. Only those documents judged to be the more pertinent are abstracted. The abstracts are grouped under 13 classifications. A subject and author index is provided.
Date: November 1, 1977
Creator: Suta, B.E.; Mara, S.J.; Radding, S.B. & Weisbecker, L.W.
Back to Top of Screen