3,862 Matching Results

Search Results

Results: 1 - 24 next
open access

Maneuvering Horizontal Tail Loads

Description: Report describing a study to develop an acceptable method for calculating the magnitude, direction, and distribution of the maneuvering horizontal tail load. The simplified method identified is outlined and evidence is provided to demonstrate the method's accuracy. Variation of the maneuvering tail load is discussed for changes in altitude, speed, pitching inertia, and longitudinal stability. Appendices present solutions of the equations of motion in which all the stability derivatives are incl… more
Date: January 25, 1945
Creator: Kelley, Joseph, Jr. & Missall, John W.
Partner: UNT Libraries Government Documents Department
open access

Storm Data and Unusual Weather Phenomena, Volume 2, Number 3, March 1960

Description: Monthly report containing a chronological listing, by state, of hurricanes, tornadoes, thunderstorms, hail, floods, drought conditions, lightning, high winds, snow, temperature extremes and other weather phenomena. It also provides information on storm paths, deaths, injuries, and property damage.
Date: April 25, 1960
Creator: United States. Weather Bureau.
Partner: UNT Libraries Government Documents Department
open access

Storm Data and Unusual Weather Phenomena, Volume 1, Number 4, April 1959

Description: Monthly report containing a chronological listing, by state, of hurricanes, tornadoes, thunderstorms, hail, floods, drought conditions, lightning, high winds, snow, temperature extremes and other weather phenomena. It also provides information on storm paths, deaths, injuries, and property damage.
Date: May 25, 1959
Creator: United States. Weather Bureau.
Partner: UNT Libraries Government Documents Department
open access

Heavy Water Power Reactor Program Monthly Report: January 1963

Description: Report documenting progress on the Heavy Water Power Reactor Program including continued testing of specimens of the handling tube pressure shells for manufacturing the on-power refueling system, partial completion of analysis of the heat transfer experiments at GE, Richland, and reports of fluctuating water levels in steam generators leading to three nuclear operation shutdowns.
Date: February 25, 1963
Partner: UNT Libraries Government Documents Department
open access

Corrosion In The Oak Ridge Research Reactor Core-Cooling System

Description: Corrosion specimens of the five major aluminum alloys used in the construction of the Oak Ridge Research Reactor have been exposed to the high-purity primary cooling water in the ORR core and in the external portion of the primary cooling loop to determine their corrosion rates under actual operating conditions. These alloys, 1100, 3003, 5052, 5154, and 6061, exhibited average corrosion rates of less than 2.6 mpy during the first 500-hr test period and less than 0.5 mpy for a 4032-hr test. Only… more
Date: April 25, 1960
Creator: Neumann, P. D.
Partner: UNT Libraries Government Documents Department
open access

HRT-Chemical Plant Runs 18 And 19 Summary

Description: The HRT chemical plant was operated for 1070 hours during reactor runs 18 and 19, removing solids from a new feed point, in the reactor core near the junction of the top diffuser screen and the core wall. Corrosion product solids data removal data for those runs is summarized here, with data from runs 16 and 17 included for comparison.
Date: March 25, 1960
Creator: Yarbro, O. O.
Partner: UNT Libraries Government Documents Department
open access

Spectrographic Analysis of Normal Human Tissue From Richmond, Virginia

Description: As a part of the Internal Dose Program, normal human tissues are analyzed spectrographically for approximately 40 minor and trace elements. This study is performed by the Health Physics Division and the Physics Department, University of Tennessee, under Subcontract 380. Because the amount of data is large, central files reports have been issued which include the data on all tissues received from a city. This is the sixth report in the series, and all tissues here reported upon were received fro… more
Date: August 25, 1959
Creator: Tipton, I. H.; Cook, M. J.; Foland, J. M.; Rittner, Johanna; Hardwick, Michael & McDaniel, K. K.
Partner: UNT Libraries Government Documents Department
open access

The Compound CuO-3UO3

Description: A double oxide of uranium and copper has been found to exist at 300'C in the four-component system UO3-CuO-SO3-H2O. This new compound is shown to be CuO-3UO3. The method of preparation, analyses, and characterization of the compound are given. Some comments are made with regard to the homogeneous reactor fuel solution.
Date: August 25, 1959
Creator: Gill, J. S. & Marshall, W. L.
Partner: UNT Libraries Government Documents Department
open access

Transformation Mechanism of Zirconium

Description: The allotropic transformation of zirconium (from a body-centered cubic phase to a hexagonal close-packed phase) has been investigated in order to obtain additional information concerning the characterization of the mechanism.
Date: September 25, 1951
Creator: Hayes, Edgar Eben
Partner: UNT Libraries Government Documents Department
open access

Reactor Automatic Control and Load Swing Test. Test Results DL-S-144 (T-554924). Section I. Second Performance

Description: The purpose of this test was to determine the controlling ability of the Reactor Power and Temperature Control System and to determine the operational characteristics of the station during load swings after change of operating conditions from 523 F, 2000 psi, to 500 F, 1800 psi. The Reactor Power and Temperature Control System satisfactorily controlled rod movements to maintain all primary plant parameters within their individual limits during steady state operation and during ramp function loa… more
Date: March 25, 1959
Creator: Mafrica, Roces
Partner: UNT Libraries Government Documents Department
open access

Reactor Plant Container Air Cooling System. Section III. Second Performance. Test Results DL-S-136 (T-550090)

Description: The purpose of this test was to determine the performance of the Reactor Plant Container Air Cooling System with four reactor coolant loops at operating temperature. Due to the fact that the test was performed with the chamber door open, no significant conclusion can be arrived at concerning the efficiency of the Air Cool System. The 1B supply fan circulated approximately 20 per cent less air than the 1A fan during the test. Later investigation revealed that the turning vanes above the 1B dampe… more
Date: March 25, 1959
Partner: UNT Libraries Government Documents Department
open access

Thermoelectric Properties of the Plasma Diode

Description: It is well known that thermionic emission into vacuum is accompanied by a Peltier cooling of the vacuum metal interface. The interface may be thought of as a junction between two conductors: the metal, and an electron gas whose distribution is determined primarily by space charge. The addition of a small amount of easily ionized gas to the vacuum region does not affect the Peltier cooling of the interface, but is does squeeze the space charge region to about one micron and replaces most of the … more
Date: July 25, 1958
Creator: Lewis, H. W. & Reitz, John R.
Partner: UNT Libraries Government Documents Department
open access

An On-Off Servo for the ARE

Description: Fuel temperature is used to govern the servomechanism which operates the ARE control rod. The mechanism circuitry is given and its operation is described.
Date: November 25, 1952
Creator: Hanauer, S. H.; Mann, E. R. & Stone, J. J.
Partner: UNT Libraries Government Documents Department
open access

Analysis of UN Solutions for Na

Description: A comparison is presented of results obtained by flame-photometric procedure and spectrographic analysis of samples of UO3 dissolved in HNO3 with various known amounts of NaCl solution added. Results were calculated on the basis of parts per million of U. Results indicate flame-photometric procedures are probably satisfactory for analysis for Na but results obtained using the spectrograph were found low.
Date: September 25, 1952
Creator: Reilly, V. J.
Partner: UNT Libraries Government Documents Department
open access

Phenomenological Theory of the Attenuation of Neutrons by Air Ducts in Shields

Description: Experiments on the attenuation of neutrons by air ducts in water can be understood on a simple phenomenological picture. First the attenuation of neutrons in a long thin straight section is shown to be a function of (1/l)2, where l is the length of the duct. These neutrons are primarily the uncollided neutrons which have traveled directly in air from one end of the duct to the other. Next the attenuation due to a duct which consists of two straight sections joined at an angle o is considered. F… more
Date: June 25, 1952
Creator: Simon, A. & Clifford, Charles E.
Partner: UNT Libraries Government Documents Department
open access

A Study of Location Times for Positions Arranged on a Panel in a Random and an Ordered Manner

Description: The results of an experimental pilot study on the location time, for a sequence of N specified positions on a panel, are given for 1 <_ N <_ 30. The positions to be located were randomly arranged on one set of panels and arranged according to an ordering scheme on a second set of panels. Th location time for N positions randomly arranged on a panel varies approximately as N(2). In the case of an order arrangement the location time is essentially proportional to N. Even for as few as 30 position… more
Date: May 25, 1955
Creator: Beeler, J. R.
Partner: UNT Libraries Government Documents Department
open access

Vapor Traps for Handling Liquid Sodium

Description: An active program is a present underway to develop equipment to handle liquid metals. Among the metals being studied are sodium and sodium--potassium alloy (the latter commonly referred to as NaK). In many of the systems being studied this liquid metal is pressurized by inert gas in the lines. At times it is necessary to bleed off some of this gas from the system. Although the gas is allowed to escape at a temperature at which the vapor pressure of sodium is extremely small, it has been found t… more
Date: August 25, 1951
Creator: Erickson, A. J.; Gregory, C. L. & Lang, P. M.
Partner: UNT Libraries Government Documents Department
open access

Studies on the Experimental Pathology and Biochemistry of the Pulmonary Granulomatosis of Beryllium Workers. Section II, Consolidated Progress Report. Supplement: a Review of the Physical Chemistry of Beryllium

Description: The status of research is reviewed in a study of pulmonary granulomatosis in beryllium workers. Equipment for use in dust exposure studies is described. Preliminary results are reported from studies on the tissue distribution and pathological effects of beryllium dust in rats; the physical chemistry of solutions of beryllium salts; the effects of beryllium on enzyme systems, and the effects of ascorbic acid on beryllium excretion.
Date: April 25, 1955
Creator: Schepers, G. W. H. (Gerrit Willem Hendrik), 1914-
Partner: UNT Libraries Government Documents Department
open access

Multi-temperature Cross Section Tape for the GNU Multigroup Calculation

Description: A cross section tape has been prepared containing data for elements of most interest for aqueous homogeneous reactor multigroup diffusion calculations involving combinations of 150, 200, 240, 260, and 280°C temperatures. This tape permits multigroup analysis of a reactor in which two or more regions are at different temperatures.
Date: January 25, 1961
Creator: Vondy, D. R.
Partner: UNT Libraries Government Documents Department
open access

Multiple Controllers for a Single Process

Description: A multiple controller system for a single process is formulated in block diagram form. It is shown that for the general case of n controllers and one type of cross coupling, the system equations can be reduced to the standard forms of servomechanism theory. The effects of failure in individual controllers are examined, and it is demonstrated that the system shows considerable promise for both reliability and maintenance without process interruption.
Date: January 25, 1961
Creator: Weaver, C. H.
Partner: UNT Libraries Government Documents Department
open access

The Helium Purification System for the Proposed Pebble Bed Reactor Experiment

Description: A helium coolant side-stream purification system consisting of parallel sections for radioactive and non-radioactive de-contamination was designed for the proposed Pebble Bed Reactor Experiment. Primary equipment components are two gas coolers, gas heater, charcoal delay trap, CuO oxidizer, Molecular Sieve adsorber, and full flow filter. The charcoal delay trap is sized to provide a hold-up of 30 minutes for Kr isotopes, 6hr hold-up for Xe isotopes, and 99.9% retention of iodine isotopes result… more
Date: October 25, 1960
Creator: Scott, C. D.; Finney, B. C. & Suddath, J. C.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen