Search Results

open access

Hydrogeochemical and Stream Sediment Survey of the National Uranium Resource Evaluation Program: July--September 1975

Description: Quarterly report of the National Uranium Resource Evaluation Program Hydrogeochemical and Stream Sediment Survey documenting context related to the project, progress and results, plans for the next quarter, and other relevant information.
Date: May 1976
Creator: Sharp, Robert R., Jr. & Morris, Wayne A.
Partner: UNT Libraries Government Documents Department
open access

Summary of the Stratigraphy, Sedimentology, and Mineralogy of Pennsylvanian and Permian Rocks of Oklahoma in Relation to Uranium-Resource Potential

Description: Report describes the structural and stratigraphic framework, depositional environment, and petrology and petrography of the various Pennsylvanian-Permian time and rock units present in Oklahoma. This report identifies five geologic settings favorable for the localization of uranium, such as alluvial fan deposits, oil-productive structures where Permian sandstones are altered, tidal-flat sandstone-silstones, channel sandstones on gentle structural features, and oil-productive Cherokee sandstones.
Date: February 27, 1976
Creator: Shelton, John W. & Al-Shaieb, Zuhair
Partner: UNT Libraries Government Documents Department
open access

Hydrogeochemical and Stream Sediment Survey of the National Uranium Resource Evaluation Program: October--December 1975

Description: Quarterly report of the National Uranium Resource Evaluation Program Hydrogeochemical and Stream Sediment Survey documenting context related to the project, progress and results, plans for the next quarter, and other relevant information.
Date: May 1976
Creator: Sharp, Robert R., Jr. & Morris, Wayne A.
Partner: UNT Libraries Government Documents Department
open access

Pedro Mountain Drilling Project, Carbon County, Wyoming

Description: This report follows the cooperative drilling project between the U.S. Energy Research and Development Administration (ERDA) and the U.S. Geological Survey (USGS) for the coring of granite in the Pedro Mountains of Carbon County, Wyoming.
Date: September 1976
Creator: Price, T. J.; Callihan, M. C.; Young, R. G. & Stuckless, J. R.
Partner: UNT Libraries Government Documents Department
open access

Uranium Concentrations in Natural Waters, South Park, Colorado

Description: The following report describes the study of sediment in South Park, Colorado, the study taking 464 water samples to test for uranium in the Rocky Mountains.
Date: August 1976
Creator: Sharp, Robert R., Jr. & Aamodt, Paul L.
Partner: UNT Libraries Government Documents Department
open access

Hydrogeochemical and Stream-Sediment Survey (NURE): Preliminary Report on the Winnemucca Dry Lake Basin Pilot Study (Nevada)

Description: This report follows the hydrogeochemical and stream-sediment study in the Winnemucca Dry Lake Basin in Nevada that was conducted by the Lawrence Livermore Laboratory. This report contains only the analytical data and sample locations.
Date: August 1, 1976
Creator: Lawrence Livermore Laboratory
Partner: UNT Libraries Government Documents Department
open access

Appendix A11: Continental Shelf Sedimentation, a Bibliography

Description: A bibliography for the investigation of the hydraulic regime and physical nature of bottom sedimentation at the Columbia River dump site.
Date: April 1976
Creator: Nittrouer, Charles A.
Partner: UNT Libraries Government Documents Department
open access

Irradiation performance of HTGR fuel rods in HFIR experiments HRB-4 and -5

Description: Experiments HRB-4 and -5 were the first tests of weak-acid-resin-derived fissile fuel. This fuel was later selected as the reference recycle fissile kernel. The WAR-derived kernels did not exhibit thermal migration during irradiation, but there was some concentration of rare-earth fission products at the inner surface of the SiC coating. These experiments were also a test of fuel rods carbonized in graphite tubes, to simulate in-block carbonization. The results of these tests showed significant problems associated with in-block carbonization, notably a mechanical interaction between particles and matrix material. A significant development program was launched to solve these problems. HRB-4 and -5 also included three specimens prepared by an extrusion fabrication route. These specimens generally performed well, although some tiny cracks in the SiC layer, apparently caused by the fabrication process but accentuated by the irradiation, were noted.
Date: June 1, 1976
Creator: Homan, F. J.; Long, E. L. Jr.; Hamner, R. L.; Montgomery, B. H.; Valentine, K. H. & Kania, M. J.
Partner: UNT Libraries Government Documents Department
open access

Distribution of energy in biomolecular chemiluminescent reactions involving hydrogen atoms. Progress report, May 1, 1976--April 30, 1976. [Summaries of research activities at Univ. of Iowa]

Description: Preliminary observations of photon and ion production from the collision of approximately 5-eV H atoms with Li and Li/sub 2/ and also with a Li-coated surface are described. The present state and future plans for the primary and secondary molecular beam apparatuses are discussed. Theoretical and non-beam spectroscopic work related to the Li/sub 2/H system is also noted.
Date: January 1, 1976
Creator: Stwalley, W. C.
Partner: UNT Libraries Government Documents Department
open access

Similarity indices I: what do they measure.

Description: A method for estimating the effects of environmental effusions on ecosystems is described. The characteristics of 25 similarity indices used in studies of ecological communities were investigated. The type of data structure, to which these indices are frequently applied, was described as consisting of vectors of measurements on attributes (species) observed in a set of samples. A general similarity index was characterized as the result of a two-step process defined on a pair of vectors. In the first step an attribute similarity score is obtained for each attribute by comparing the attribute values observed in the pair of vectors. The result is a vector of attribute similarity scores. These are combined in the second step to arrive at the similarity index. The operation in the first step was characterized as a function, g, defined on pairs of attribute values. The second operation was characterized as a function, F, defined on the vector of attribute similarity scores from the first step. Usually, F was a simple sum or weighted sum of the attribute similarity scores. It is concluded that similarity indices should not be used as the test statistic to discriminate between two ecological communities.
Date: November 1, 1976
Creator: Johnston, J. W.
Partner: UNT Libraries Government Documents Department
open access

Conformal anomalies in curved space--time

Description: The general form of the conformal anomaly in a dimensionally regularized theory of massless fermions in a background metric is shown to be determined by the first few terms of weak field perturbation theory.
Date: November 1, 1976
Creator: Duncan, A.
Partner: UNT Libraries Government Documents Department
open access

Excitation efficiency and energy storage capabilities of high pressure rare gas--metal vapor mixtures. Final report

Description: Gain has been observed on the 5461A (7/sup 3/S/sub 1/--6/sup 3/P/sub 2/) and 3650A (6/sup 3/D/sub 3/--6/sup 3/P/sub 2/) transitions in atomic Hg. The media consists of 50 to 150 torr and He and 20 to 50 torr of Hg excited by a 1 ..mu..s, pulsed, 0.5 to 4 a/cm/sup 2/ discharge. Gain as high as 10% has been measured with an OSRAM spectral lamp. Gain appears in the afterglow from 2 to 10 ..mu..sec after the termination of the discharge pulse. The upper state appears to be pumped by recombination, during which time the lower state is being depopulated by collisions with electrons or Helium atoms.
Date: January 1, 1976
Creator: Crane, J K; Verdeyen, J T & Cherrington, B E
Partner: UNT Libraries Government Documents Department
open access

Computer model for the KALC process studies in the ORGDP Off-Gas Decontamination Pilot Plant. [Krypton adsorption in liquid carbon dioxide]

Description: A computer model of the KALC process is presented for the equipment configuration in use during HTGR off-gas studies at the ORGDP Off-Gas Decontamination Pilot Plant. The model is tailored to require input routinely available during such experimental studies. A program is included to provide McCabe-Thiele plots as an additional convenience.
Date: September 1, 1976
Creator: Glass, R. W. & Barker, R. E.
Partner: UNT Libraries Government Documents Department
open access

Biomedical Engineering support. Semiannual progress report

Description: The basic goal of the ERDA Artificial Heart Program is to develop and construct an artificial heart, powered by a /sup 238/Pu heat source, which can be successfully employed as an emplantable total artificial heart system for animal experiments. Future studies will be directed at developing and evaluating a satisfactory system for total heart replacement in humans. A total of 32 ERDA artificial hearts have been implanted since the initiation of the program. During the reporting period ten total heart replacement experiments were performed in calves using the ERDA blood pump powered by an electric motor implanted in the abdomen. Results of the experiments are given. (TFD)
Date: January 1, 1976
Creator: Kolff, W. J.; Smith, L. M. & Sandquist, G. M.
Partner: UNT Libraries Government Documents Department
open access

Mechanical behavior of materials and structural elements at elevated temperatures. Progress report, June 1, 1975--May 31, 1976

Description: Research performed between June 1, 1975 and May 31, 1976 on the mechanical behavior of materials and structural elements at elevated temperatures is summarized. The analytical portion of the research performed includes solutions of several boundary value problems for structural components subjected to steady loads with and without steady thermal gradients using Hart's constitutive relations for the material. Study of crack propagation in a ductile material has been initiated. The experimental portion of the research, designed to perform creep experiments on structural components at room and elevated temperatures, has been started. Hardware is being built and measuring equipment is being purchased.
Date: May 1, 1976
Creator: Lance, R. H. & Mukherjee, S.
Partner: UNT Libraries Government Documents Department
open access

Nuclear structure studies utilizing LAMPF. Annual progress report. [Summaries of research activities at Idaho National Engineering Laboratory]

Description: This report describes progress during FY-1975 on the study of the decay properties of selected neutron-deficient nuclides produced by proton-induced spallation reactions in the Clinton P. Anderson Meson Physics Facility (LAMPF) at LASL. These studies include the decay of /sup 128/Ba (2.4 d), /sup 128/Cs (3.9 min), /sup 131/Ba (11.7 d), /sup 134/Ce (75.9 h), /sup 134/La (6.67 min), and /sup 151/Tb (17.6 h), as well as half-life measurements of /sup 134/La and /sup 132/-/sup 135/Ce. In order to carry out studies of the longer-lived parents /sup 128/Ba and /sup 134/Ce, chemical separation techniques were developed to continuously remove the shorter-lived daughters /sup 128/Cs and /sup 134/La. All samples were isotope separated at INEL. In addition to these studies, the progress reported includes the development of measurement techniques necessary for planned future programmatic efforts. (auth)
Date: March 1, 1976
Creator: Reich, C. W.; Greenwood, R. C.; Helmer, R. G.; Gehrke, R. J. & Heath, R. L.
Partner: UNT Libraries Government Documents Department
open access

Large-aspect-ratio equilibrium and stability

Description: The general guiding-center energy principle is applied to the derivation of equilibrium and stability conditions in the limiting case of a large-aspect-ratio system.
Date: July 2, 1976
Creator: Newcomb, W. A.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen