Search Results

open access

Geothermal Resource Investigations: Imperial Valley, California. Site location report, deep geothermal test well

Description: Data for use in siting a deep geothermal test well in the East Mesa area of Imperial County, California are summarized. The data relate to a geothermal anomaly known as the Mesa anomaly. It is concluded that the thermal feature forming the Mesa anomaly is a manifestation of a sizable convective hydrothermal system embracing an area of about 19 square miles and a considerable volume of saturated sediment in the Salton trough. The upper surface of the thermal feature between depths of 200 and 1,0… more
Date: October 1, 1971
Partner: UNT Libraries Government Documents Department
open access

Liquid metal bearings technology for large, high-temperature, sodium rotating machinery. Development and test of high-temperature proximity probe for use in liquid sodium. Fourth topical report

Description: An inductance-type, proximity-probe system for measurement of bearing film thicknesses and shaft orbits in high-temperature, liquid-sodium environment has been developed, built and tested. The probe system is designed to operate at temperatures up to 1200/sup 0/F and gap range of 0.004'' to 0.080'', with good linearity over about three-quarters of the range, when using probe pairs connected in push-pull. The probes were tested extensively in both gas and sodium environments, culminating in a 68… more
Date: June 1, 1971
Creator: Hoogenboom, I. & Kissinger, C.
Partner: UNT Libraries Government Documents Department
open access

SPECIFIC PROTONATION OF THE CARCINOGEN 7, 12-DIMETHYIBENZ [a]ANTHRACENE AND CHARGE LOCALIZATION IN THE a-COMPLEX

Description: In the class of the polycondensed aromatic hydrocarbons, the concept of localized charge in a {sigma}-complex, e.g., the carbonium ion formed by addition of a proton or other electrophile to an aromatic ring, has so far received experimental evidence only in the case of anthracene. The ultraviolet spectrum of this compound in sulfuric acid is similar to that of the benzhydryl cation. Ph{sub c}C{sup +}Me. This result implies the protonation of anthracene at one meso-carbon atom and the localizat… more
Date: April 1, 1971
Creator: Cavalieri, Ercole & Calvin, Melvin.
Partner: UNT Libraries Government Documents Department
open access

PHOTOCHEMICAL COUPLING OF BENZO [a]PYRENE WITH 1-METHYL-CYTOSINE;PHOTO-ENHANCEMENT OF CARCINOGENICITY

Description: Irradiation of the carcinogenic benzo[a]pyrene (I) with 1-methylcytosine hydrochloride IIa (molar ratio 1:10) at 3500 {angstrom} in methanol-acetone produces the 6-(1-methylcytos-5-yl)-benzo[a]pyrene (III). The structure of the product shows the hydrocarbon bound through the most active 6-carbon atom to the nucleophilic 5-position of the base. In the second part, the possibility of observing carcinogenic effects on the mouse skin from non-carcinogenic hydrocarbons under the action of UV light i… more
Date: January 1, 1971
Creator: Cavalieri, E. & Calvin, Melvin.
Partner: UNT Libraries Government Documents Department
open access

Mechanism Op Action Op P-Hydroxybenzoate Hybrozylase Frompseudomonas Putida. Iii. The Enzyme-Subtrate Complex

Description: The mechanism of action of p-hydroxybenzoate hydroxylase from Pseudomonas putida, strain M-6, has been investigated. The aromatic substrate analogues, benzoate, p-fluorobenzoate, p-chlorobenzoate, p-nitrobenzoate, p-aminobenzoate, and 6-hydroxynicotinate, are found to be competitive inhibitors. This finding differs from the previously reported noncompetitive behavior in a different buffer system. The optical activity of the enzyme-inhibitor complex is studied. From the kinetic and circular dich… more
Date: April 1, 1971
Creator: Teng, Nelson N. H.; Kbtovycz, George; Calvin, Melvin & Hosokawa, Keiichi
Partner: UNT Libraries Government Documents Department
open access

An Analog Method for Measuring the Longitudinal Coupling Impedance of a Relativistic Particle Beam With Its Environmnet

Description: The stability of a coasting beam against self-bunching (negative mass instability) may be expressed in terms of a beam coupling impedance. The impedance has contributions from self-fields, wall impedance, and curvature effects. This paper describes procedures for measuring the wall and curvature contributions to the coupling impedance by means of an analog in which the beam is replaced by a conductor propagating a TEM-like mode. Conditions are derived under which the measurements are valid, var… more
Date: August 1, 1971
Creator: Faltens, A.; Hartvig, E. C.; Mohl, D. & Sessler, A. M.
Partner: UNT Libraries Government Documents Department
open access

THE EFFECT OF RIFAMPICIN, AND TWO DERIVATIVES, ON CELLS INFECTEDWITH MOLONEY SARCOMA VIRUS

Description: It is shown that rifampicin, and especially its relative dimethyl-N-benzyl-N-desmethyl rifampicin, can inhibit focus formation by Moloney sarcoma virus on BALB/3T3 tissue cultures. At a dose level of 10 {micro}g/ml DMB appears to totally inhibit focus formation while reducing virus replication by at least a factor of fifty and cell proliferation by only a factor of three. These observations, taken together with those of others, suggest a role for the hybrid RNA-DNA dependent DNA polymerase and … more
Date: March 1, 1971
Creator: Calvin, Melvin.; Joss, Urs R.; Hackett, Adeline J. & Owens, RobertB.
Partner: UNT Libraries Government Documents Department
open access

Dissipation of the reactor heat at the Savannah River Plant

Description: The effluent cooling water from the heat exchangers of the Savannah River nuclear reactors is cooled by natural processes as it flows through the stream beds, canals, ponds, and swamps on the plant site. The Langhaar equation, which gives the rate of heat removal from the water surface as a function of the surface temperature, air temperature, relative humidity, and wind speed, is applied satisfactorily to calculate the cooling that occurs at all temperature levels and for all modes of water fl… more
Date: October 1, 1971
Creator: Neill, J. S. & Babcock, D. F.
Partner: UNT Libraries Government Documents Department
open access

Geothermal resource investigations, Imperial Valley, California. Status report

Description: The discussion is presented under the following chapter titles: geothermal resource investigations, Imperial Valley, California; the source of geothermal heat; status of geothermal resources (worldwide); geothermal aspects of Imperial Valley, California; potential geothermal development in Imperial Valley; environmental considerations; and proposed plan for development. (JGB)
Date: April 1, 1971
Partner: UNT Libraries Government Documents Department
open access

Waukegan Station plume

Description: In a previous report on effects of thermal discharges from power plants into the Great Lakes, we stressed the need for a statistical analysis of the spatial and temporal pattern of the thermal plume. The plume pattern is recognized as stochastic in nature and requires statistical analysis. A single realization of the Waukegan Station plume is studied with emphasis on its information content. Areas between isotherms at various depths are computed together with volumes of water in given temperatu… more
Date: May 1, 1971
Creator: Abu-Shumays, I.K.
Partner: UNT Libraries Government Documents Department
open access

Radioecological studies related to the BANEBERRY event

Description: On December 18, 1970, at 7:30 a.m., PST, a venting occurred at the Nevada Test Site in conjunction with the Baneberry test. The Lawrence Radiation Laboratory (LRL) Bio-Medical Research Division and the University of Utah responded to this event by activating their jointly operated air-sampling network and by gathering forage, milk, and animal samples. These data are used to calculate the dose to humans from inhalation, submersion, and food-chain contamination; food-chain contamination calculati… more
Date: March 1, 1971
Creator: Koranda, J. J.; Phelps, P. L.; Anspaugh, L. R.; Potter, G. B.; Chapman, W.; Hamby, K. O. et al.
Partner: UNT Libraries Government Documents Department
open access

Waukegan Station plume

Description: In a previous report on effects of thermal discharges from power plants into the Great Lakes, we stressed the need for a statistical analysis of the spatial and temporal pattern of the thermal plume. The plume pattern is recognized as stochastic in nature and requires statistical analysis. A single realization of the Waukegan Station plume is studied with emphasis on its information content. Areas between isotherms at various depths are computed together with volumes of water in given temperatu… more
Date: May 1, 1971
Creator: Abu-Shumays, I. K.
Partner: UNT Libraries Government Documents Department
open access

EG&G/DBM quarterly report, July--October 1971

Description: This report documents technical progress at the Santa Barbara Division and the Las Vegas Division. Topics reported on from Santa Barbara include: ecology studies at NTS, passive neutron detection techniques, Henre spectrum modifier, exposure rate conversion studies, delineation of cosmic ray effects, development of isotope contouring techniques, initial radiation studies, detector array response calculations, and arms data analysis compendium. The Las Vegas Division reports on: radiation propag… more
Date: November 1, 1971
Creator: Lamonds, H. A.
Partner: UNT Libraries Government Documents Department
open access

Terminal Report-Research in Nuclear Physics

Description: For the past six and one-half years the U.S. Atomic Energy Commission under Contract AT(11-1)1468, has supported research in nuclear physics at the University of Arizona. During this period, from April 1, 1965, to September 30, 1971, the AEC has provided $567,000.00 in operational funds and $44,350.00 as a special equipment grant. This report summarizes the research accomplished under that contract.
Date: January 1, 1971
Creator: Donahue, D J; McCullen, J D & McIntyre, Jr., L C
Partner: UNT Libraries Government Documents Department
open access

NUCLEAR CHEMISTRY ANNUAL REPORT 1970

Description: Papers are presented for the following topics: (1) Nuclear Structure and Nuclear Properties - (a) Nuclear Spectroscopy and Radioactivity; (b) Nuclear Reactions and Scattering; (c) Nuclear Theory; and (d) Fission. (2) Chemical and Atomic Physics - (a) Atomic and Molecular Spectroscopy; and (b) Hyperfine Interactions. (3) Physical, Inorganic, and Analytical Chemistry - (a) X-Ray Crystallography; (b) Physical and Inorganic Chemistry; (c) Radiation Chemistry; and (d) Chemical Engineering. (4) Instr… more
Date: May 1, 1971
Creator: Authors, Various
Partner: UNT Libraries Government Documents Department
open access

325-B FACILITY

Description: Due to the continuing high air sample results over the past six months, a thorough review of conditions and procedures was felt necessary for 325-B facility. A complete survey of the facility was made, looking for possible or definite problems. A discussion about procedures and conditions was held with all Radiation Monitoring personnel involved with the facility. The following items we felt needed attention to improve the working environment for the personnel in the facility. 1. Recommend glov… more
Date: February 1, 1971
Partner: UNT Libraries Government Documents Department
Back to Top of Screen