Resource Type
Serial/Series Title
NACA Research Memorandums
181
Atomic Energy Commission Reports
99
Hanford Works Reports
42
NACA Technical Reports
37
HW (Series)
32
University of California Radiation Laboratory Reports
17
Oak Ridge National Laboratory Reports
16
Report (U.S. Atomic Energy Commission)
15
GJBX
13
Battelle Memorial Institute Reports
10
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439 Matching Results
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The Analysis of TBP Process Streams for Calcium with the Flame Photometer
Summary: A method was found for determining calcium concentrations in TBP process streams in spite of serious interferences bysodium, ferrous, uranyl, sulfate, phosphate, and sulfamate ions as well as by TBP. The precision attainable varied from sample to sample, depending upon its composition. In general, errors of 20% or greater occurred. The smallest determinable amount of calcium was about 10 mg/1.
Date:
February 20, 1953
Creator:
Brite, D. W.
Object Type:
Report
System:
The UNT Digital Library
Analysis of TH( NO3 ) -Ca( NO3 )2 –HNO3 Solutions
Abstract. Methods of analysis for thorium, calcium, and nitric acid in solutions from thorium extraction purification columns are described and the results and errors are outlined. A brief description of methods of analysis that were not successful is included.
Date:
December 20, 1945
Creator:
Warf, James C.; Patterson, J. H. & Banks, Charles V.
Object Type:
Report
System:
The UNT Digital Library
Analytical comparison of turbine-blade cooling systems designed for a turbojet engine operating at supersonic speed and high altitude 1: liquid-cooling systems
Report presenting an investigation of the influence of high-altitude supersonic flight on the operation and effectiveness of turbine-blade liquid-cooling systems for application in turbojet engines in guided missiles and in supersonic aircraft. The problems encountered in liquid-cooling systems were investigated with reference to several specific designs for alternate heat-rejection mediums.
Date:
February 20, 1953
Creator:
Schramm, Wilson B.; Nachtigall, Alfred J. & Arne, Vernon L.
Object Type:
Report
System:
The UNT Digital Library
Analytical procedures for the metal fabrication process
From introduction: The present report describes further refinements of the apparatus and the method to meet a need for a sensitive determination of carbon in plutonium.
Date:
February 20, 1951
Creator:
Leboeuf, M. B.
Object Type:
Report
System:
The UNT Digital Library
Apparent viscosity of simulated underground metal waste slurries
From introduction: "This report presents the apparent viscosities of supernate-sludge slurries prepared synthetically to simulate the conditions known to exist in the waste storage tanks, but with fission products and plutonium absent."
Date:
June 20, 1950
Creator:
Allen, A. W.
Object Type:
Report
System:
The UNT Digital Library
Applied Nuclear Physics Division Annual Progress Report for Period Ending September 10, 1956
Report issued by the Oak Ridge National Laboratory discussing work completed by the Applied Nuclear Physics Division during 1956. Summaries of experiments conducted and project developments are presented. This report includes tables, illustrations, and photographs.
Date:
November 20, 1958
Creator:
Blizard, E. P.; Simon, A.; Callihan, A. D.; Clifford, C. E.; Maienschein, F. C. & Peelle, R. W.
Object Type:
Report
System:
The UNT Digital Library
APPR-1: Design, Construction and Operation
"This document includes papers covering technical problems involved in the design, construction and operation of the APPR-1" (p. 4).
Date:
November 20, 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Approximate Models for Distributed-Parameter Heat-Transfer Systems
Summary: The use of dimensionless-parameter frequency response diagrams to determine accuracies of lumped-parameter approximations is demonstrated by two examples: calculation of the heat flux at the surface of a semi-infinite solid due to temperature fluctuations of an adjacent fluid; and the response of a counterflow heat exchanger to inlet fluid temperature perturbations. Dimensionless system parameters make it possible to use general-purpose plots to find the error in particular approximations as a function of the frequency of perturbation. Such plots are directly applicable to control-system stability problems, where the highest frequency of interest is usually apparent.
Date:
August 20, 1963
Creator:
Ball, S. J.
Object Type:
Report
System:
The UNT Digital Library
Approximate Stress Analysis of Multistringer Beams With Shear Deformation of the Flanges
"The problem of the skin-stringer combinations used as axially loaded panels or as covers for box beams is considered from the point of view of the practical stress analyst. By a simple substitution the problem is reduced to the problem of the single-stringer structure, which has been treated in NACA Report no. 608. The method of making this substitution is essentially empirical; in order to justify it, comparisons are shown between calculations and strain-gage tests of three beams tested by the author and of one compression panel and three beams tested and reported elsewhere" (p. 469).
Date:
April 20, 1938
Creator:
Kuhn, Paul
Object Type:
Report
System:
The UNT Digital Library
Aqueous Uranium Slurry Studies
A summary of the laboratory development program on aqueous uranium slurry fuels for the Homogenous Reactor Project during the period April 1951 through March 1953 is presented. These investigations were devoted primarily to a study of the uranium oxides in aqueous suspensions. It was concluded that U(VI) was most likely to be the stable valence state in such slurry fuels and it was shown that β-UO3·H2O platelet crystals were the stable modification at 250°C. Very pure slurries of β-UO3·H2O platelets, uranium concentration of 250g/liter and average particle size of about 10 μ, had favorable settling rates and could be easily redispersed. Their viscosity and corrosion rate in stainless steel were comparable with those in water. Exposure of these slurries to pile radiation disclosed that radiolytic hydrogen and oxygen gas pressure comparable in magnitude to those of uncatalyzed uranyl sulfate solutions could be expected. Fission products in the irradiated slurries were predominantly associated with the solids. Radiation also tended to promote caking of these solids on the walls of the radiation bombs. Uranyl phosphate and the magnesium uranates were briefly investigated as alternate system but were not found satisfactory. The program was discontinued before the feasibility of uranium slurries for reactor …
Date:
October 20, 1955
Creator:
Blomeke, J. O.; Bamberg, J. L.; Blomeke, J. O.; Bruce, F. R.; Fulmer, J. M.; McBride, J. P. et al.
Object Type:
Report
System:
The UNT Digital Library
Artificial Radioactive Isotopes of Cerium and Lanthanum
The following document describes some studies of the radioactive isotopes of cerium and lanthanum lying on the light or neutron-deficient side of stability.
Date:
July 20, 1948
Creator:
Chubbuck, James B.
Object Type:
Report
System:
The UNT Digital Library
An Automatic Water Deaeration System
Laboratory studies involving fluid flow through porous media require use of fluids having low dissolved gas content. Water is the major fluid used in various and box model and soil permeability studies carried out by the Geochemical and Geophysical Research group. Tap water supplied to the 222-U Bldg. contains a large amount of dissolved air. Under the reduced pressure encountered during model studies, the air is released from solution and gradually clogs the pores of the sand or other porous material. This, of course. leads to anomalous results and cannot be tolerated in precious studies. A system was required to effectively remove the air and make available a continuous supply of desired water for the model studies.
Date:
April 20, 1959
Creator:
Raymond, J. R.
Object Type:
Report
System:
The UNT Digital Library
Autoxidation of Uranous Salts in Water Solution
From introduction: "The fact that tetravalent uranium either in the form of solutions of its salts or, in some cases, in the dry state is readily oxidized by gaseous oxygen, has been observed by various investigators. A quantitative study of this reaction appeared to be desirable as a means of learning more about the nature of the ionic species present in uranous solutions. It was also of potential value in determining the importance of autoxidation as an undesirable side reaction involved in the handling of uranous solutions, and, if necessary, in developing procedures for minimizing the reaction."
Date:
April 20, 1946
Creator:
Nichols, Ambrose R., Jr.
Object Type:
Report
System:
The UNT Digital Library
The Behavior of Some Solid Materials Under Pile Operating Conditions
Technical report abstract. The present state of knowledge concerning the effect of pile radiation on a variety of solid materials is reviewed. Radiation corrosion will not be a serious hazard for aluminum or stainless steel but it can be for iron or lead if either are exposed to water. Apart from corrosion the principal uncertainty is in regard to the Wigner effect on the behavior of metals. There is at present no ground for optimism regarding the behavior of tuballoy. The effect on aluminum or a bonding material while less severe must also be considered serious. The expectation in regard to graphite is that its behavior will not cause trouble during the first 100 days of operation although serious troubles will probably arise within two years of operation. Organic materials can be used safely only in regions of limited exposure.
Date:
July 20, 1944
Creator:
Burton, Milton, 1902- & Seitz, Frederick, 1911-2008
Object Type:
Report
System:
The UNT Digital Library
A Bibliography on Factors Effecting the Motion of the Artificial Earth Satellite
"This bibliography is a list of references pertaining to factors affecting the motion of the artificial earth satellite. References are foreign and domestic literature."
Date:
May 20, 1958
Creator:
Frost, Frederick E.
Object Type:
Report
System:
The UNT Digital Library
Bibliography on Molecular and Crystal Structure Models
Report that briefly describes many of the models of crystal and molecular structures which have appeared in the literature, and presents a bibliography of the publications, grouped according to model types, which describe the models in more detail.
Date:
May 20, 1960
Creator:
Smith, Deane K.
Object Type:
Report
System:
The UNT Digital Library
A Biological Survey of the Pribilof, Alaska
Brief summary of the geographic distribution, habits, and habitats of the birds, mammals, insects, arachnids, and chilopods of the Pribilof Islands.
Date:
June 20, 1923
Creator:
Preble, Edward A. & McAtee, W. L.
Object Type:
Report
System:
The UNT Digital Library
Biology Division Semiannual Progress Report for Period Ending February 15, 1956
Progress report of the Oak Ridge National Laboratory Biology Division providing updates on various projects, experiments, and other work. This report includes a summary of scholarly output from the division and departmental activities in cytology and genetics, mammalian genetics and development, microbial protection and recovery, mammalian recovery, pathology and physiology, general physiology, biochemistry, enzymology and photosynthesis, microbiology, plant biochemistry, and biophysics.
Date:
April 20, 1956
Creator:
Hollaender, Alexander & Carson, Stanley F.
Object Type:
Report
System:
The UNT Digital Library
Blowing Over the Flaps and Wing Leading Edge of a Thin 49 Degree Swept Wing-Body-Tail Configuration in Combination With Leading-Edge Devices
Report presenting an investigation in the full-scale tunnel to determine the effects of the low-speed aerodynamic characteristics of blowing air over the trailing-edge flap of a large-scale wing-body-tail model. Results regarding half-span flaps and full-span flaps, pitching-moment and longitudinal trim characteristics, drag characteristics, lift-drag ratio, and lateral control are provided.
Date:
July 20, 1956
Creator:
McLemore, H. Clyde & Fink, Marvin P.
Object Type:
Report
System:
The UNT Digital Library
Buckling Measurements : Heavy Natural Uranium Tubular Fuel Assemblies
One-region buckling measurements that were made on a series of D/sub 2/O- moderated lattices of heavy uranium metal tubes in the Process Development Pile at Savannah River Laboratory are presented. The purposes of these measurements are to provide normalization points for lattice bucklings and to extend the study of natural uranium- D/sub 2/O systems. The dependence of buckiing on the moderator-to-fuel ratio is studied for two types of lattices.
Date:
November 20, 1963
Creator:
Dunklee, A. E. & Graves, William E. (William Ernest), 1941-
Object Type:
Report
System:
The UNT Digital Library
Calculated condenser performance for a steam turbine power plant for aircraft
Report presenting calculations to determine the effect of several operating conditions on the performance of condensers for steam-turbine power plants. The analysis covered a range of turbine-inlet pressures and turbine-outlet pressures for various condenser cooling-air pressure drops, flight speeds, and altitudes. Results regarding steam-cycle performance, effect of turbine-outlet pressure on condenser performance, effect of cooling-air pressure drop on condenser performance, effect of turbine-inlet temperature on condenser performance, and power-plant-weight estimates are provided.
Date:
May 20, 1948
Creator:
Humble, Leroy V. & Doyle, Ronald B.
Object Type:
Report
System:
The UNT Digital Library
Calibration of Line Standards of Length and Measuring Tapes at the National Bureau of Standards
From Abstract: "The methods used at the National Bureau of Standards in calibrating line standards of length and measuring tapes submitted for standardization are outlined. The equipment used is described briefly. There is a discussion of some considerations that should be given as to whether or not a standard should be submitted to the Bureau."
Date:
May 20, 1960
Creator:
Judson, Lewis V.
Object Type:
Report
System:
The UNT Digital Library
Canard Hinge Moments and Longitudinal Stability of a 1/7-Scale Model of the Convair B-58 External Store in a Free-Flight Investigation at Mach Numbers From 0.94 to 2.58
Report presenting a longitudinal stability and control investigation of a model of the Convair B-58 external store over a range of Mach numbers. Normal force, chord force, and static and dynamic stability derivatives are provided. Abrupt pitching disturbances were created by step-function movements of the canard surface.
Date:
June 20, 1958
Creator:
Hollinger, James A.
Object Type:
Report
System:
The UNT Digital Library
Canard Hinge Moments and Longitudinal Stability of a 1/7-Scale Model of the Convair B-58 External Store in a Free-Flight Investigation at Mach Numbers From 0.94 to 2.58: Coord. No. AF-204
Memorandum presenting a longitudinal stability and control investigation made over a range of Mach numbers of a scale model of the Convair B-58 external store. Normal force, chord force, and static and dynamic stability derivatives formed an important part of the results. Results regarding the hinge moments and longitudinal trim and force coefficients are also provided.
Date:
June 20, 1958
Creator:
Hollinger, James A.
Object Type:
Report
System:
The UNT Digital Library