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Ab initio effective core potentials including relativistic effects and their application to the electronic structure calculations of heavy atoms and molecules
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 electrons. Both are larger for 6s than for 5d or 6p electrons. The various relativistic effects on valence electrons are discussed in detail to determine the proper level of the approximation for the valence electron calculations of systems with heavy elements. An effective core potential system has been developed for heavy atoms in which relativistic effects are included in the effective potentials.
Date:
November 1, 1977
Creator:
Lee, Y. S.
Object Type:
Report
System:
The UNT Digital Library
AC Transmission Line Field Measurements
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.
Object Type:
Report
System:
The UNT Digital Library
ACORN: a computer program for plotting fault trees. [In FORTRAN for CDC Cyber 74]
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 statements, each defining a gate in terms of logical operations of the components input to it. ACORN develops the logical structure of the tree from the input statements. The tree's physical structure is developed by assigning relative spatial coordinates to the logical relationships between a gate and its inputs. ACORN provides input data checking, a printer plot of the fault tree, and plotting data for a CalComp model 763 plotter. The program is operational on a CONTROL DATA CYBER 74 computer. 2 figures, 1 table.
Date:
November 1, 1977
Creator:
Carter, J. L.
Object Type:
Report
System:
The UNT Digital Library
Acoustic absorption by the electron-hole liquid in germanium
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 due to energy-dissipative processes coupling the liquid to the crystal lattice, and the effect of a moderately strong magnetic field on the dynamic behavior of the system are presented. In unstrained germanium the electron-hole liquid (EHL) is known to be condensed into small droplets of radius approx. 5 ..mu..m; the creation of an EHL energy well by the application of an inhomogeneous stress causes the liquid to be aggregated into a macroscopically large volume.
Date:
November 1, 1977
Creator:
Hansen, A.D.A.
Object Type:
Report
System:
The UNT Digital Library
ACTVE News, Volume 8, Number 10, November 1977
Newsletter issued by the Advisory Council for Technical-Vocational Education in Texas discussing news, events, and other relevant information related to technical and vocational education for adults in Texas.
Date:
November 1977
Creator:
Advisory Council for Technical-Vocational Education in Texas
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Advanced Fuel Cell Development Progress Report: July-September 1977
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL).
Date:
November 1977
Creator:
Ackerman, J. P.; Pierce, R. D.; Nelson, P. A.; Arons, R. M.; Kinoshita, K.; Sim, J. W. et al.
Object Type:
Report
System:
The UNT Digital Library
Advanced Reactor Safety Research Program quarterly report, April--June 1977. [LMFBR]
Information is presented concerning accident energetics; core debris behavior; sodium containment and structural integrity; research for elevated temperature design criteria; fuel motion detection; ACPR fuel motion system; and advanced reactor safety research assessment.
Date:
November 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
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)
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.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Fremont Quadrangle (Nebraska and Iowa)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Fremont quadrangle including maps documenting geophysical and geochemical data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Hutchinson Quadrangle (Kansas)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Hutchinson quadrangle including maps documenting geophysical and geochemical data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Lincoln Quadrangle (Nebraska)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Lincoln quadrangle including maps documenting geophysical and geochemical data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Manhattan Quadrangle (Kansas)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Manhattan quadrangle including maps documenting geophysical and geochemical data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2a: Fremont Quadrangle (Nebraska and Iowa)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Fremont quadrangle including magnetic, ancillary and radiometric data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2a: Hutchinson Quadrangle (Kansas)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Hutchinson quadrangle including magnetic, ancillary and radiometric data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2a: Lincoln Quadrangle (Nebraska)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Lincoln quadrangle including magnetic, ancillary and radiometric data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2a: Manhattan Quadrangle (Kansas)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Manhattan quadrangle including magnetic, ancillary and radiometric data.
Date:
November 1977
Creator:
GeoMetrics, Inc.
Object Type:
Report
System:
The UNT Digital Library
Agriculture: Parity, Parity, Parity
This report addresses Legislative Enactment of Parity
Date:
November 1, 1977
Creator:
Mayer, Leo
Object Type:
Report
System:
The UNT Digital Library
Akha notebook 76
Handwritten notes and transcriptions of a conversation about a visit to Denmark.
Date:
November 1977
Creator:
Hansson, Inga-Lill
Object Type:
Text
System:
The UNT Digital Library
Akha notebook 78
Handwritten notes and transcriptions of conversations about a book on Denmark and the thieves of Sunwaddhanathan.
Date:
November 1977
Creator:
Hansson, Inga-Lill
Object Type:
Text
System:
The UNT Digital Library
Los Alamos Scientific Laboratory building cost index
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 recommendation. First, a computer program was developed which greatly expanded the number of materials previously analyzed. The program calculated the 1970 to 76 weighted averages for labor, materials, and equipment for the base line project. It also plotted graphs for each category and composite indexes for labor and material/equipment. Second, estimated increases for 1977 were obtained from several sources. The Zia Company provided labor cost estimates. Projected increases for material and equipment were obtained through conversations with vendors and analysis of trade publications. Third, economic forecast reports and the Wall Street Journal were used for source material, narrative, and forecast support. Finally, we compared LASL Building Cost Index with the effects of escalation associated with three recently developed projects at LASL.
Date:
November 1, 1977
Creator:
Lemon, G. D.; Morris, D. W. & McConnell, P. H.
Object Type:
Report
System:
The UNT Digital Library
The Allen American (Allen, Tex.), Vol. 8, No. 23, Ed. 1 Tuesday, November 1, 1977
Weekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
November 1, 1977
Creator:
Camper, Buddy & Camper, Pat
Object Type:
Newspaper
System:
The Portal to Texas History
Altus High Collar (Altus, Okla.), Vol. 30, No. 20, Ed. 1 Tuesday, November 1, 1977
Weekly student newspaper from Altus High School in Altus, Oklahoma that includes local and school news along with advertising.
Date:
November 1, 1977
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 51, No. 245, Ed. 1 Tuesday, November 1, 1977
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 1, 1977
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Anaerobic fermentation of simulated in-situ oil shale retort water
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 sewage treatment plant was successfully acclimated to the retort water studied. A major fraction of the organics in the retort water studied was stabilized by conversion to CH/sub 4/ and CO/sub 2/ using the anaerobic fermentation process. BOD/sub 5/ and COD removal efficiences were 76 to 80 percent. The effluent from anaerobic fermentation of the retort water studied (BOD/sub 5/ : 530 to 580 mg/l) may be suitable for treatment by conventional aerobic processes. The growth of the methane formers, which stabilize the organics, is nutrient limited in the retort water studied. The pretreatment of the retort water studied removed 49 percent of the BOD/sub 5/. This was probably due to the reduction in solubility of high molecular weight fatty acids at neutral pHs. A major component removed from the retort …
Date:
November 1, 1977
Creator:
Ossio, E. A.; Fox, J. P.; Thomas, J. F. & Poulson, R. E.
Object Type:
Article
System:
The UNT Digital Library