1,613 Matching Results

Search Results

Results: 1 - 24 next
open access

Measurements Through a Hot Cell Window Using Optical Tooling

Description: S>Optical tooling has been evaluated for the measurement of physical dimensions of radioactive parts through hot cell windows. Instruments were set up outside of a four foot thick lead glass window and by means of a grid plate which had been accurately scribed, a ''contour map'' or calibration chart of the window variations was recorded. Although the window was not specially selected, the readings were within 1.0% of the true dimension without using correction factors. One of the calibration ch… more
Date: July 18, 1958
Creator: Abbatiello, A. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EVALUATION OF FISSION GAS ADSORPTION TRAPS FOR ORNL-MTR-44 LOOP EXPERIMENT

Description: A method of predicting the performance of fission gas adsorption traps containing activated charcoal is presented. This method is applied in the evaluation of the fission gas traps designed for use in the ORNL-MTR44 loop experiment. The method should also be applicable in evaluating fission gas traps contained in other reactor experiments. (auth)
Date: July 18, 1958
Creator: Adams, R. E. & Browning, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On Neutron Evaporation From Excited Nuclei

Description: At high excitation energies, competition of proton and c-particle emission with neutron emission becomes important. For low excitation, the competition between Y-emission, neutron emission, and fission should be taken into account. To aid in the evaluation of this competition an experiment has been performed to measure the number and energy spectrum of the protons and c-particles emitted in the high energy bombardment of uranium with protons, deuterons, and c-particles.
Date: June 18, 1953
Creator: Adelman, Frank L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental investigation of flow fields at zero sideslip near swept- and unswept-wing-fuselage combinations at low speed

Description: Report presenting an experimental determination of the flow fields near swept- and unswept-wing-fuselage combinations at zero sideslip as determined experimentally at low speed for various spanwise and vertical locations and angles of attack as variations with chordwise distance. Results regarding the swept-wing-fuselage flow fields, unswept-wing-fuselage flow fields, and a comparison of wing-fuselage and fuselage-alone flow fields are provided.
Date: January 18, 1957
Creator: Alford, William J., Jr. & King, Thomas J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Dielectric Properties of Suspensions of Boron Powders in Mineral Oil

Description: Memorandum presenting measurements of the dielectric constant for suspensions of two types of boron powder in mineral oil as a function of concentration of boron particles, moisture content, temperature, and frequency of oscillation. Also investigated were the effects of boron-powder concentration and moisture content on the dielectric losses of mineral-oil suspensions of the two boron powders.
Date: August 18, 1955
Creator: Altshuller, Aubrey P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interim report No. 1, RT 105-577-A: Irradiation of solid and cored hot pressed fuel elements

Description: In order to evaluate the performance of uranium slugs canned by the hot press method, several tubes of this metal were charged at C Pile and scheduled for irradiation until a specified number of ruptures had occurred. At the present time, all scheduled ruptures of hot-pressed slugs have been obtained. This report summarizes the irradiation experience under this test and the results obtained to the present time, and presents conclusions which are drawn from this experience.
Date: May 18, 1955
Creator: Anderson, J. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A flight investigation of the effect of leading-edge camber on the aerodynamic characteristics of a swept-wing airplane

Description: Report presenting flight measurements on a swept-wing jet aircraft to determine the effects of adding forward camber and an increased leading-edge radius on the low-speed stalling characteristics, the high-speed static longitudinal stability, and the airplane drag. The modified leading edge produced values of maximum lift somewhat greater than the slats on a normal airplane, but the stall was unacceptable because of an abrupt roll-off.
Date: February 18, 1953
Creator: Anderson, Seth B.; Matteson, Frederick H. & Van Dyke, Rudolph D., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Localization of Cerium-144 in the Skeletal Tissues of Fetal Rats

Description: The developing fetal skeleton of the rat was used to study the microscopic localization of the rare earth Ce/sup 144/ in bone. Nineteen-day-old rat fetuses were injected with Ce/sup 144/ in isotonic sodium citrate via the umbilical vein. They were sacrificed one-haif hour after the injection by immersion in 80% alcohol fixative. The fetuses were embedded in paraffin and sectioned at 10 to 12 mu . Semiserial sections were treated with periodic acid- Schiff stain for mucopolysaccharides, and by t… more
Date: October 18, 1957
Creator: Asling, C. W.; Johnston, M. E.; Durbin, P. W. & Hamilton, J. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Calculations for the Boiling Reactor Shield

Description: The shield for the boiling reactor experiment is intended to serve for a series of homogeneous reactors. With this in mind the layout shown has been designed to provide flexibility. In order to obtain information on required shield thicknesses some calculations have been made for the first two proposed reactors, the Teapot and a six foot boiling reactor. Calculations include the radiation from the reactor compartment into the instrument room and through the top shield during operation. In the c… more
Date: December 18, 1951
Creator: Aven, R. E.; Eckels, A. R. & Heubenreich, P. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Deep versus shallow cooling ponds

Description: Some months ago, the Engineering Department was requested to make an evaluation estimate of the cost of obtaining approximately 150,000 gpm of cooling water from shallow ponds or from cooling towers. Their conclusions (see DPWZ-5305) were (1) that both schemes were feasible and each produced cooling water of approximately the same annual average temperature; (2) the cooling towers could be built more quickly, largely because no additional engineering data were required before construction would… more
Date: June 18, 1956
Creator: Babcock, D. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal Neutron Fluxes in HRE-2 Determined From Zircaloy-2 Induced ActivityMeasurements, Runs 16 and 17

Description: Thermal neutron fluxes prevailing near some Zircaloy-2 specimens exposed during HRT run 17, and near others exposed during runs 17, 16, 14 and 13 have been determined from measurements of the induced activity in the specimens. The neutron fluxes were calculated for an average core power level of 2 Mv.
Date: December 18, 1959
Creator: Baker, J. E.; Jenks, G. H. (Glenn Herbert), 1916- & Olsen, A. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measured Data Pertaining to Buffeting at Supersonic Speeds of the Douglas D-558-II Research Airplane

Description: Report presenting data obtained from an investigation of the Douglas-D558-II airplane to determine its buffeting characteristics at high lift and supersonic speeds. From Summary: "Buffeting was encountered at normal-force coefficients greater than about 0.7 in the Mach number range from 0.96 to 1.27 but at Mach number of 1.57, a peak normal-force coefficient of 0.80 was attained with no indication of buffeting. The increase in buffet intensity with lift is very gradual at supersonic speed compa… more
Date: February 18, 1954
Creator: Baker, Thomas F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Inversion of the Angular-Momentum Expansion of Meson Photoproduction Amplitudes

Description: Helicity amplitudes are written for photoproduction of mesons and related in the amplitudes of Chew, Goldberger, Low, and Nambu. The expansions of both types of amplitudes in terms of amplitudes for particular angularmomentum states are then inverted. (auth)
Date: August 18, 1959
Creator: Ball, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Evaluation of the Calder Hall Type of Nuclear Power Plant

Description: Abstract: Presented herein is the preliminary design of a natural uranium, graphite moderated, CO2-cooled reactor and power plant similar to, but larger than, the British Calder Hall plant, with a net electrical output of 130 MWE.
Date: January 18, 1957
Creator: Banks, William F.; Schneider, G. A.; Morgan, William T. & Ash, E. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase Stability of Homogeneous Reactor Hot Fuel Solutions

Description: S>Portions of two samples of HRT fael solutions were sealed in silica capillary tubes approximately three weeks after they were removed from the reactor and the temperature at which each solution separated into two liquid layers was determined. The values found, 325 er inch per 1 C for one sample and 326 er inch per 1/2 C for the other, are slightly lower than predicted from experiments with synthetic fuel solutions (329--330 C) but the discrepancies are small enough so that they could be accou… more
Date: August 18, 1959
Creator: Barton, C. J.; Gill, J. S.; Habert, G. M.; Marshall, W. L. & Moore, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase Stability of Homogenous Reactor Hot Fuel Solutions

Description: Portions of two samples of HRT fuel solutions were sealed in silica capillary tubes approximately three weeks after they were removed from the reactor and the temperature at which each solution separated into two liquid layers was determined.This report gives the results of these observations.
Date: August 18, 1959
Creator: Barton, C. J.; Gill, J. S.; Hebert, G. M.; Marshall, W. L. & Moore, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Direct Maintenance Practices for the Homogeneous Reactor Test

Description: The Homogeneous Reactor Test is designed for maintenance to be performed while the parts of the reactor are partinlly or completely submerged in water to reduce radiation levels. Tools with long handles permit the operator, standing above the equipment, to disconnect flanged joints, air lines, electrical and instrument leads, etc., in a minimum time. The techniques and tools employed to accomplish these various operations and to minimize intermixing of the contaminated process fluids with the s… more
Date: April 18, 1958
Creator: Beall, S. E. & Jurgensen, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stability and control characteristics of a 1/4-scale Bell X-5 airplane model in the landing configuration

Description: Report presenting an investigation of the static stability and control characteristics of a scale model of a preliminary Bell X-5 airplane design in the landing configuration with and without dive brakes. Results regarding the effects of slats, flaps, landing gear, gear doors, dive brakes and gap at the wing root are provided.
Date: December 18, 1950
Creator: Becht, Robert E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Centrifugal Compressor Performance With Water Injection

Description: The effects of water injection on a compressor are presented. To determine the effects of varying water-air ratio, the compressor was operated at a constant equivalent impeller speed over a range of water-air ratios and weight flows. Operation over a range of weight flows at one water-air ratio and two inlet air temperatures was carried out to obtain an indication of the effects of varying inlet air temperature. Beyond a water-air ratio of 0.03 there was no increase in maximum air-weight flow, … more
Date: July 18, 1951
Creator: Beede, William L.; Hamrick, Joseph T. & Withee, Joseph R., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thrust and drag characteristics of simulated variable-shroud nozzles with hot and cold primary flows at subsonic and supersonic speeds

Description: Report presenting an experimental investigation of a series of fixed-geometry exhaust nozzles which simulated a variable exit, which was conducted in the 8- by 6-foot supersonic wind tunnel at Mach numbers 0, 0.6, 1.5, 1.7, and 2.0. Gross thrust performance of the long-shroud exit configurations was considerably better than the short-shroud. Results regarding flow coefficients, thrust characteristics, flight performance analysis of data, and shroud drag are provided.
Date: February 18, 1955
Creator: Beke, Andrew & Simon, Paul C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of additives on pressure limits of flame propagation of propane-air mixtures

Description: Report presenting a study of seven additives in 0.5-volume-percent concentration for their effects on the low-pressure limits of flame propagation of propane-air mixtures. Limits were measured in a flame tube of new design. Results regarding propane-air mixtures, propane-air-additive mixtures, and flame propagation qualities are provided.
Date: December 18, 1953
Creator: Belles, Frank E. & Simon, Dorothy M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen