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178
United States Department of Energy Grand Junction Office Reports
147
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110
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50
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20
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14
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402 Matching Results
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Theoretical Investigation of the Effects of the Artificial-Feel System on the Maneuvering Characteristics of the F-89 Airplane
The possibility of overshooting the anticipated normal acceleration as a result of the artificial-feel characteristics of the F-89C airplane at a condition of minimum static stability was investigated analytically by means of an electronic simulator. Several methods of improving the stick-force characteristics were studied. It is shown that, due to the lag in build-up of the portion of the stick force introduced by the bobweight, it would be possible for excessive overshoots of normal acceleration to occur in abrupt maneuvers with reasonable assumed control movements. The addition of a transient stick force proportional to pitching acceleration (which leads the normal acceleration) to prevent this occurring would not be practical due to the introduction of an oscillatory mode to the stick-position response. A device to introduce a viscous damping force would Improve the stick-force characteristics so that normal acceleration overshoots would not be likely, and the variation of the maximum stick force in rapid pulse-type maneuvers with duration of the maneuver then would have a favorable trend.
Date:
December 31, 1952
Creator:
Abramovitz, Marvin; Schmidt, Stanley F. & Belsley, Steven E.
Object Type:
Report
System:
The UNT Digital Library
Metallurgical Examination of HRT Leak Detector Tubing and Flanges
After several failures had occurred in the HRT leak detector system, several lengths of this tubing were removed for metallurgical examination. The tubing was of type 304 stainless steel and was 1/4" in diameter with a 0.065 wall. The tubing had been purchased as three different lots, the first in 45 ft. lengths and the other two as standards lengths. Tubing from the first lot was used primarily for the shield penetration and, therefore, sections of it are present in all lines of the system. It appears that chloride contamination entered the system in a portion of the first lot of tubing used for the shield penetration. The exact source of the chloride cannot be determined, but after considering the results and visiting the manufacturer's plant, it appears most likely the contamination was during the manufacturing process.
Date:
January 31, 1957
Creator:
Adamson, G. M; Hammond, T. M.; Kegley, T. M. & White, J. K.
Object Type:
Report
System:
The UNT Digital Library
Army Gas-Cooled Reactor Systems Program Semiannual Progress Report: January 1 - June 30, 1959
Report documenting the progress of the Army Gas-Cooled Reactor Systems Program to develop a mobile, low-power, nuclear power plant for Military field operation.
Date:
July 31, 1959
Creator:
Aerojet-General Corporation
Object Type:
Report
System:
The UNT Digital Library
Army Gas-Cooled Reactor Systems Program Semiannual Progress Report: January 1 - June 30, 1960
Report documenting the progress of the Army Gas-Cooled Reactor Systems Program to develop a mobile nuclear power plant for military field operation.
Date:
July 31, 1960
Creator:
Aerojet-General Corporation
Object Type:
Report
System:
The UNT Digital Library
30 Megawatt Heat Exchanger and Steam Generator for Sodium Cooled Reactor System
Final design for the 30 megawatt intermediate heat exchanger and steam generator.
Date:
January 31, 1962
Creator:
Alco Products (Firm)
Object Type:
Report
System:
The UNT Digital Library
State of Matter at High Pressure
Abstract. The region where exact thermodynamic description of the state of matter at high pressure and high temperature is possible is located. In the remaining region various approximate theories and empirical relations are discussed. These considerations are applied to hydrogen to locate the density and pressure at which the diatomic bond collapses. Also the approximate conditions are determined at which no bound electron states exist.
Date:
March 31, 1960
Creator:
Alder, Berni J.
Object Type:
Report
System:
The UNT Digital Library
Steady State Temperature Distributions in Hollow Slugs
This document is a sequel to HW-30226, "Steady State Temperature Distribution in a Solid Slug." A primary feature of the present as well as the former paper is a treatment of the stand heat flow equation in a manner which accounts accurately for the dependence of the thermal conductivity, K, on temperature, v.
Date:
December 31, 1953
Creator:
Anselone, P. M.; Banks, D. O. & Dean, R. Y.
Object Type:
Report
System:
The UNT Digital Library
Acute Radiotoxicity of Injected Yttrium91
Report describing results of experiments that involved injecting radioactive yttrium into animals: "The excretion, retention, and distribution of the yttrium was measured, and its effect on survival and growth was observed. The average total excretion of Y91 to the time of death (from 76 hours to 24 days) was a little less than 30 per cent of the injected dose" (p. 2).
Date:
July 31, 1947
Creator:
Anthony, David S.
Object Type:
Report
System:
The UNT Digital Library
U-10 Wt % Mo Fuel Element: Irradiation in SRE
From abstract: The fuel element assembly was successfully irradiated in the SRE to a maximum burnup of 5300 Mwd/MTU, at a peak fission rate of approximately 1.5 x 10E13 fissions/cm3-sec and a maximum central temperature near 1200F.
Date:
August 31, 1965
Creator:
Arnold, J. L.; Miller, K. J. & Peterson, R. M.
Object Type:
Report
System:
The UNT Digital Library
Conceptual Design Study of a Mobile Gamma Irradiator for Fruit Produce
From introduction: This report covers the results of a study of a mobile irradiator for fruit grown in California.
Date:
May 31, 1962
Creator:
Associated Nucleonics (Garden City, N.Y.)
Object Type:
Report
System:
The UNT Digital Library
Gas-Phase Radiolysis of Propane
Abstract. the direct and inert-gas radiolysis, as well as the vacuum ultra-violet photolysis of CD3CH2CD3, CH3CD2CH3 and C3H2+C3D3 mixtures have been investigated in the presence of radical scavengers. The major conclusions are : (a) at atmospheric pressures, neutral propane decomposition contributes to the observed products although to a lesser extent than parent ion decompositions ; (b) a variation in pressure has a pronounced effect on the fragmentation of the parent ion ; (c) the hydrogen atoms in the ethyl ion are randomized in the direct as well as in the inert-gas sensitized radiolysis ; (d) rearrangement in the parent ion is of minor importance in the radiolysis ; (e) although the formation of propylene is related to the propyl ion, it is not necessarily produced by the neutralization of this ion.
Date:
May 31, 1963
Creator:
Ausloos, Pierre J.; Lias, Sharon G., 1935- & Sandoval, L. B., (Mrs.)
Object Type:
Report
System:
The UNT Digital Library
High Speed Stability and Control Characteristics of a 0.17-Scale Model of the McDonnell XF2H-1 Airplane (TED No. NACA DE 318)
"High-speed wind-tunnel tests were conducted of two versions of a 0.17-scale model of the McDonnell XF2H-1 airplane to ascertain the high-speed stability and control characteristics and to study means for raising the high-speed buffet limit of the airplane, The results for the revised model, employing a thinner wing and tail than the original model, revealed a mild diving tendency from 0.75 to 0.80 Mach number, followed by a marked climbing tendency from 0.80 to 0.875 Mach number. The high-speed climbing tendency was caused principally by the pitching-moment characteristics of the wing" (p. 1).
Date:
March 31, 1949
Creator:
Axelson, John A. & Emerson, Horace F.
Object Type:
Report
System:
The UNT Digital Library
Information Selection Systems Retrieval Replica Copies: a State-of-the-Art Report
Description of 15 specific systems employing search-type selection principles.
Date:
December 31, 1961
Creator:
Bagg, Thomas C. & Stevens, Mary Elizabeth
Object Type:
Report
System:
The UNT Digital Library
The effects of various parameters including Mach number on propeller blade flutter with emphasis on stall flutter
Report presenting an investigation of the effects of many of the parameters significant to wing flutter on several untwisted rotating models to determine their significance with respect to stall flutter of propeller blades. The parameters included torsional stiffness, section thickness ratio, sweepback, length-chord ratio, section center-of-gravity location, blade taper, Mach number, and fluid density. Results regarding the considerations on method of presentation, experimental data and discussion, some possible applications, and a comparison of experiment with classical-flutter theory are provided.
Date:
January 31, 1951
Creator:
Baker, John E.
Object Type:
Report
System:
The UNT Digital Library
Helium Leak Detector Test for Hanford And Savannah River Fuel Slugs
The Helium Leak Detector Test provides a method for detecting the presence of minute holes, cracks, fissures, etc. in the aluminum jackets of Hanford and Savannah River reactor fuel slugs which would allow moisture to penetrate to the uranium during reactor operation.
Date:
December 31, 1952
Creator:
Barnes, A. H.; Smith, F. A. & Wimunc, E. A.
Object Type:
Report
System:
The UNT Digital Library
Final Report on Interpretation and Evaluation of the Uranium Occurrences Near Goodsprings, Nevada
From introduction: This report is based on the field and laboratory studies of the uranium mineralization in the vicinity of Goodsprings, Clark Co., Nevada. The location of the region is shown in figure 1.
Date:
December 31, 1954
Creator:
Barton, Paul B., Jr. & Behre, Charles H., Jr.
Object Type:
Report
System:
The UNT Digital Library
Interpretation and Evaluation of the Uranium Occurences Near Goodsprings, Nevada: Final Report
Abstract: The uranium occurrences near Goodsprings, Clark Co., Nevada, are divided into two distinct types which differ from each other in geographic distribution, localization of mineralization, mineralogy and origin. None of the known deposits is of present commercial significance and therefore this study emphasizes the genetic rather than the economic aspects.
Date:
December 31, 1954
Creator:
Barton, Paul B., Jr. & Behre, Charles H., Jr.
Object Type:
Report
System:
The UNT Digital Library
Attempted Modification of Susceptibility of Tumors to X-Radiation : Final Report for August 1 1957 to August 31, 1959
Attempts to secure a high degree of synchronization of cell division of the Krebs mouse ascites carcinoma, by combined use of aminopterin and citrovorum factor, and by use of colchicine and N-acetyl colchinol, were unsuccessful. In the course of the work, a new method for securing smears of ascites tumor cells was out, which we believe will be found useful
Date:
December 31, 1959
Creator:
Beck, Lyle Vibert, 1906-
Object Type:
Report
System:
The UNT Digital Library
Phase Diagrams of Zirconium-Beryllium and Related Systems
Introduction. The phase diagram data reported in this paper were obtained during an investigation of the beryllium-metal compounds of the titanium group transition elements. Several compounds in these systems had been previously reported but their compositions and structures were not all known. In the course of this study many details of the phase diagrams of the system were observed. Tentative diagrams consistent with this data will be presented.
Date:
May 31, 1960
Creator:
Bedford, Ray Gilbert, 1928-
Object Type:
Report
System:
The UNT Digital Library
Time Dependence of the Slowing Down of Neutrons with Constant Scattering Mean Free Path
Simple expression are derived for the time dependence of slowing down of neutrons in a simple media. In Section I, a method suggested by age theory is used, while in section II, a two parameter scattering function is employed. Results are compared with exact calculations.
Date:
May 31, 1952
Creator:
Bell, G. I. & Bethe, Hans A. (Hans Albrecht), 1906-2005
Object Type:
Report
System:
The UNT Digital Library
Pulsed Neutron Experiments With Fast Assemblies
"The pulsed source technique consists of introducing repeated short bursts of neutrons into a subcritical assembly, and following the decay of the leakage flux as a function of time...It is noted that plotting the decay constant as a function of buckling gives an apparently accurate way to extrapolate to prompt critical. The pulsed source technique can also be used to calibrate control rod and poison worth, and will give some estimate of the prompt neutron lifetime."
Date:
October 31, 1957
Creator:
Bengston, Joel & Passell, Lawrence
Object Type:
Report
System:
The UNT Digital Library
The Hard-Core Pinch. I
This report analyzes a linear, hard-core pinch tube built to examine tubes afflicted by small-scale instabilities evident from many observations.
Date:
July 31, 1959
Creator:
Birdsall, D. H.; Colgate, Stirling A. & Furth, Harold P.
Object Type:
Report
System:
The UNT Digital Library
The Hard-Core Pinch. II
This report describes a toroidal version of the hard-core pinch and the additional information it can obtain to what the analogous linear pinch can get.
Date:
July 31, 1959
Creator:
Birdsall, D. H.; Colgate, Stirling A. & Furth, Harold P.
Object Type:
Report
System:
The UNT Digital Library
Rocket-Model Measurements of Zero-Lift Damping in Roll of the Bell MX-776 Missile at Mach Numbers from 0.6 to 1.56
The zero-lift damping in roll of the Bell MX-776 missile has been measured by a sting-mounted rocket-model technique at Mach numbers from 0.6 to 1.56. The damping-in-roll data, in general, show no unusual variation with Mach number. Aileron rolling-moment effectiveness derived from these data and previously obtained rolling-effectiveness data appear reasonable,.
Date:
December 31, 1953
Creator:
Bland, William M., Jr. & Purser, Paul E.
Object Type:
Report
System:
The UNT Digital Library