Serial/Series Title
Country
Counties
Month
Day
56 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
56
next
Experimental Fabrication of a Lightweight Control Rod
Abstract: "The possibility of fabricating a lightweight control rod from one of several high cross-section materials was investigated. The major effort was directed toward the development of a titanium-clad rod containing a composite core of 25 weight per cent Gd2O3 in a matrix of titanium. Experimentation on both subscale and full-scale control-rod cores showed that the fabricating behavior of the two was not analogous. To roll the full-scale core successfully, it was necessary to lower the oxide content to 17 weight per cent. Subscale investigations were also carried out on titanium-cadmium, titanium-lanthanum, and titanium-gadolinium alloys."
Date:
July 1, 1952
Creator:
Saller, Henry A.; Stacy, J. T. & Keller, D. L.
System:
The UNT Digital Library
A Continuous Fission Product Separation Process; I. Removal of the Rare Earths (Lanthanum Cerium, Praseodymium, and Neodymium) From a Typical Liquid Bismuth-Uranium Reactor Fuel by Contact with Fused LiCl-KCl Mixtures
Technical report investigating the distribution of rare earth elements between a liquid bismuth-uranium solution and fused KCI-LiCi mixtures. Report warrants further research on the liquid bismuth-uranium-fused salt system due to the benefit of continuous fission removal processes.
Date:
July 1, 1951
Creator:
Bareis, D. W.
System:
The UNT Digital Library
Note on Possible Stabilization Due to Coupling
Abstract: "By a simple illustration it is pointed out that, conceivably, the real coupled character of the general magnetohydrodynamic equations may lead to much slower instability growth rates, if not stabilization, than predicted from the linearized set of equations."
Date:
July 1, 1955
Creator:
Greyber, Howard D.
System:
The UNT Digital Library
Uranium in the Southern United States
From introduction: The purpose of this study was to compile information on and systematically assess uranium and other radioactive occurrences in the region.
Date:
July 1, 1969
Creator:
Southern Interstate Nuclear Board
System:
The UNT Digital Library
Hydrogeochemical and Stream-Sediment Survey (NURE): Preliminary Report on the Walker River Basin Study (California/Nevada)
From introduction: The objective of this survey is to develop a geochemical data base for use by the private sector to locate regions of anomalous uranium content. Prior to wide area coverage, several pilot studies are being undertaken to develop and evaluate sampling and analytical techniques. The first of these studies was conducted in the Walker River Basin.
Date:
July 1, 1976
Creator:
Lawrence Livermore Laboratory
System:
The UNT Digital Library
A Class of Casualty Functions with Special Application to Circular Targets
Abstract: "Methods developed by [the Systems Evaluation Department] to analyze circular targets are extended to handle a particular family of casualty curves."
Date:
July 1, 1960
Creator:
unknown
System:
The UNT Digital Library
Mound Laboratory Liquid Waste Disposal Research Quarterly Report for April 1 - June 30, 1949
The following report is a quarterly report by the Monsanto Chemical Company for liquid waste disposal research, covering the period between April 1 to June 30, 1949.
Date:
July 1, 1949
Creator:
Monsanto Chemical Company
System:
The UNT Digital Library
Analysis of V-g records from the Grumman F8F-2 airplane
From Introduction: "In the present paper, which supplements reference 1, V-g records obtained from F8F-2 airplanes in 1949 are analyzed statistically to determine the frequency of experiencing large values of normal load factor and airspeed. These results are compared with the results from the F8F-1 airplane."
Date:
July 1, 1952
Creator:
Thornton, James O.
System:
The UNT Digital Library
Some effects of body cross-sectional shape, including sunken-canopy design, on drag as shown by rocket-powered-model tests at Mach numbers from 0.8 to 1.5
Report presenting free-flight tests made with four fin-stabilized bodies of fineness ratio 8.91 to determine the effect of body cross-sectional shape on body drag at a range of Mach and Reynolds numbers. Results regarding the curve of drag coefficients, drag on the nose and body, and body pressure drag are provided.
Date:
July 1, 1952
Creator:
Stoney, William E., Jr. & Putland, Leonard W.
System:
The UNT Digital Library
The Effect of Increased Cooling Surface on Performance of Aircraft-Engine Cylinders as Shown by Tests of the NACA Cylinder
A method of constructing fins of nearly optimum proportions has been developed by the NACA to the point where a cylinder has been manufactured and tested. Data were obtained on cylinder temperature for a wide range of inlet-manifold pressures, engine speeds, and cooling-pressure differences. The results indicate that an improvement of 40 percent in the outside-wall heat-transfer coefficient could be realized on the present NACA cylinder by providing a thermal bond equivalent to that of an integral fin-cylinder wall combination between the preformed fins and the cast cylinder wall" (p. 107).
Date:
July 1, 1944
Creator:
Schey, Oscar W.; Rollin, Vern G. & Ellerbrock, Herman H., Jr.
System:
The UNT Digital Library
Compressibility and Heating Effects on Pressure Loss and Cooling of a Baffled Cylinder Barrel
"Theoretical investigations have shown that, because air is compressible, the pressure-drop requirements for cooling an air-cooled engine will be much greater at high altitudes and high speeds than at sea level and low speeds. Tests were conducted by the NACA to obtain some experimental confirmation of the effect of air compressibility on cooling and pressure loss of a baffled cylinder barrel and to evaluate various methods of analysis. The results reported in the present paper are regarded as preliminary to tests on single-cylinder and multicylinder engines. Tests were conducted over a wide range of air flows and density altitudes" (p. 1).
Date:
July 1, 1944
Creator:
Goldstein, Arthur W. & Ellerbrock, Herman H., Jr.
System:
The UNT Digital Library
Measurements of free-space oscillating pressures near propellers at flight Mach numbers to 0.72
"In the course of a short flight program initiated to check the theory of Garrick and Watkins (NACA rep. 1198), a series of measurements at three stations were made of the oscillating pressures near a tapered-blade plan-form propeller and rectangular-blade plan form propeller at flight Mach numbers up to 0.72. In contradiction to the results for the propeller studied in NACA rep. 1198, the oscillating pressures in the plane ahead of the propeller were found to be higher than those immediately behind the propeller. Factors such as variation in torque and thrust distribution, since the blades of the present investigation were operating above their design forward speed, may account for this contradiction" (p. 999).
Date:
July 1, 1958
Creator:
Kurbjun, Max C. & Vogeley, Arthur W.
System:
The UNT Digital Library
Estimating Safety Probabilities from Fallout Forecasts for Nevada Test Site
Abstract: "Available data on wind persistence and wind forecasting capability have been applied in estimating the probability of a fallout pattern shifting from an uninhabited safe sector into a populated region. Safety probability is computed from win variability, forecasting accuracy, initial height and particle size of radioactivity landing at a point in the predicted fallout pattern, predicted wind speed, length of forecast period, and safe-sector angular width."
Date:
July 1, 1960
Creator:
Reed, Jack W.
System:
The UNT Digital Library
A Study of Nevada Test Site Wind Variability
Abstract: "Wind observations collected at Yucca Flat since 1951 are analyzed for timewise variability. Variability functions of altitude, season, wind speed, and vector wind are described. Derived variability parameters are incorporated into calculations of fallout safety probability for NTS operations."
Date:
July 1, 1960
Creator:
Reed, Jack W.
System:
The UNT Digital Library
The Chattanooga Shale of Tennessee as a Source of Uranium: Final Report
From major objective: The over-all aim of the study has been to obtain a thorough geologic picture of the Chattanooga shale in the area under consideration, with emphasis upon stratigraphic relationships and associated special problems from which, in turn, implications may be obtained as to the origin and age of the formation and possibly the source of the uranium. The study has not been aimed primarily at exploration for uranium and its economic aspects.
Date:
July 1, 1959
Creator:
Stockdale, Paris B. & Klepser, Harry J.
System:
The UNT Digital Library
Accumulation of Radioactivity in Columbia River Fish in the Vicinity of the Hanford Works
Abstract: The data obtained from the radioassay of fish collected in vicinity of the Hanford Works between April, 1948 and June, 1950 are presented. Most of the radioactivity in the fish resulted from the concentration of p32 in the scales, bone, and certain visceral organs. The level of activity density in the fish was influenced by size, feeding habits and metabolic rate in addition to the activity density of the water. Changes in operation of nuclear reactors have resulted in progressive increases in activity densities of fish from one year to the next. The levels of radioactivity are not sufficiently high to be hazardous to either the fish or persons eating them.
Date:
July 1, 1952
Creator:
Olson, P. A., Jr. & Foster, Richard F.
System:
The UNT Digital Library
Mound Laboratory Liquid Waste Disposal Research Quarterly Report for April - June, 1950
The following report is a quarterly report conducted by the Monsanto Chemical Company for liquid waste disposal research, covering the period April through June, 1950. This report discusses experiments that were carried out with both neutralized second-cycle wastes and pure isotope which show that, in general, the presence of fluoride ion does not interfere with the removal of fission products from waste solutions.
Date:
July 1, 1950
Creator:
Monsanto Chemical Company
System:
The UNT Digital Library
An interim report on the Lone Pine, California airborne survey
A report discussing an airborne radiometric survey of the Lone Pine, California project.
Date:
July 1, 1956
Creator:
Mallory, Neil S. & Richards, Arthur J.
System:
The UNT Digital Library
Transition Boiling Heat Transfer Program; Sixth Quarterly Progress Report, April - June 1964
Summary: Transition boiling data was taken with an improved flow loop, to explore the influence of loop characteristics on rod temperature fluctuations the transition region was found to be much smaller than for comparable conditions with a different loop. Also the amplitude, and frequency of the temperature oscillations, were significantly less than before. These results indicate that loop characteristic and flow disturbance parameters play a prominent part in governing the transition temperature fluctuations. Additional two-rod transition boiling data are presented. The results include data taken at high wall temperature levels during a demonstration test at low steam qualities, and the effect of a change in rod spacing on heat transfer performance.
Date:
July 1, 1964
Creator:
Quinn, E. P.
System:
The UNT Digital Library
Welding Characteristics of Zircaloy Jacketed Fuel Elements
Contemplated higher tube power for future reactor operation will probably require a fuel element jacketing material more corrosion resistant than presently available aluminum alloys. Zirconium and its alloys are generally regarded as the most promising jacketing candidates for high temperature operation, particularly for exposures of long duration. In order to obtain assembly, welding, and corrosion data, twenty Al-Si bonded and twenty unbonded Zircaloy fuel elements were prepared for KER loop testing. This report describes the technique developed to weld Zircaloy jacketed fuel elements and presents the results of end closure corrosion testing and metallographic examination.
Date:
July 1, 1956
Creator:
Lingafelter, J. W.
System:
The UNT Digital Library
High Performance UO2 Program First Quarterly Progress Report: April-June 1961
A better understanding of the maximum operating characteristics that can be achieved with the use of UO2 as a reactor fuel is the primary purpose of this program for Euratom and the Atomic Energy Commission. During this program work will be undertaken in two areas that have been of concern to the reactor core designer for a long time, viz. fission gas release and central melting in fuel rods.
Date:
July 1, 1961
Creator:
Weidenbaum, B
System:
The UNT Digital Library
Testing of Fuel Element Parts and Assemblies by the Radiographic Method
Concurrently with the production of canned uranium slugs for pile operation there arises the problem of nondestructive testing so that no slug which may fail structurally during operation be placed in the pile. The ultimate goal of any such testing program is to devise nondestructive testing methods which will eliminate defective slugs. A secondary goal of the testing program is to learn as much as possible about the construction of the canned slug so that the mechanisms of failure can be understood. Radiography, an increasingly useful nondestructive test method, offered one possible way of investigating this area.
Date:
July 1, 1954
Creator:
VanderLaan, Robert H.
System:
The UNT Digital Library
Critical Tests for PRT Reactor
This document authorizes the performance in accordance with the specifications noted, the PRTR Critical Tests described herein. The experiments described have the following objectives:
Date:
July 1, 1960
Creator:
Triplett, J. R.; Anderson, J. K.; Peterson, R. E.; Regimball, J. J.; Russell, J. T.; Schmid, L. C. et al.
System:
The UNT Digital Library
Tables of Chemical Kinetics : Homogeneous Reactions (Supplementary Tables)
From Preface: "A brief description of the method used in compiling these tables and the limitation of coverage are given in the preface to Supplement 1 of the NBS Circular 510. The present volume contains information pertaining to substitution, exchange, and elimination reaction types and extends the material on these types found in NBS Monograph 34, Volume 1. The date on each page gives the year and month to which the literature had been surveyed."
Date:
July 1, 1964
Creator:
United States. Bureau of Standards.
System:
The UNT Digital Library