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Note on Possible Stabilization Due to Coupling

Description: 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.
Item Type: Refine your search to only Report
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A Numerical Integration Scheme for Problems Involving Contour Representations

Description: The definition of the Lebesgue integral is used to develop a numerical integration method in which the integral is evaluated directly from a contour plot of the function. It is useful in working from weather maps, potential surfaces, etc., but was particularly designed to assist in reducing blast diffraction space-time diagrams to simple, meaningful quantities.
Date: July 6, 1955
Creator: Hudson, C. C.
Item Type: Refine your search to only Report
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On spectral analysis of runway roughness and loads developed during taxiing

Description: Report presenting the application of the techniques of generalized harmonic analysis to the airplane taxiing problem. Some previous results on runway roughness are reviewed and some results obtained from taxiing tests of a large airplane are given. The use of spectral techniques was found to be a rather concise way of presenting the characteristics of runway roughness.
Date: July 1955
Creator: Houbolt, John C.; Walls, James H. & Smiley, Robert F.
Item Type: Refine your search to only Report
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On the Mechanism of Buckling of a Circular Cylindrical Shell Under Axial Compression

Description: The present paper deals with the buckling of a circular cylindrical shell under axial compression from the viewpoint of energy and the characteristics of deformation. It is shown first, both theoretically and experimentally, that the reason why the buckling of a cylindrical shell is quite different from that of a flat plate is attributable to the existence of a nearly developable surface far apart from the original cylindrical surface. Based upon this result, the experimental fact that the buck… more
Date: July 1955
Creator: Yoshimura, Yoshimaru
Item Type: Refine your search to only Report
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The Origin and Distribution of Supersonic Store Interference From Measurement of Individual Forces on Several Wing-fuselage-store Configurations 2 - Swept-wing Heavy-bomber Configuration With Large Store Nacelle. Lateral Forces and Pitching Moments, Mach Number, 1.61

Description: Memorandum presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference performed in the 4- by 4-foot supersonic pressure tunnel at Mach number 1.6. Separate forces on a store, a fuselage, a swept wing, and a swept-wing-fuselage combination were measured. The configuration investigated simulated a heavy bomber airplane with a large store or nacelle with frontal area equivalent to a twin-engine nacelle.
Date: July 6, 1955
Creator: Smith, Norman F. & Carlson, Harry W.
Item Type: Refine your search to only Report
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Oxidation of Metals Subjected to a Linear Temperature Increase: Cubic and Logarithmic Laws

Description: The total amount of oxidation which occurs up to a given time when a metal is subjected to a continuously increasing temperature has been studied by Fasseli and coworkers. A constant rate of increase as well as the linear and parabolic oxidation laws were assumed. The present report extends the analysis to include to the cubic and logarithmic growth laws. The notation for the nth order exponential integral functions which is used here simplifies the equations and the calculations.
Date: July 1955
Creator: Waber, James T. (James Thomas), 1920-
Item Type: Refine your search to only Report
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Plastic Flow During Extrusion of Tubing

Description: Abstract: "A study of plastic flow during the extrusion of tubing was made by extruding colored Plasticine billets in a small-scale extrusion press. Decreasing the included angle of the conical die and tapering the ram end of the billet decreased the amount of coextrusion of the backer block into the tubing, lubricating the billet also decreased coextrusion."
Date: July 26, 1955
Creator: Saller, Henry A.; Keeler, John R. & Cuddy, Lee J.
Item Type: Refine your search to only Report
open access

Preliminary Data on Rain Deflection from Aircraft Windshields by Means of High-Velocity Jet-Air Blast

Description: From Summary: "A preliminary experimental investigation is being conducted to determine the feasibility of preventing rain from impinging on aircraft windshields by means of high-velocity jet-air blast. The results indicate that rain deflection by jet blast appears feasible for flight speeds comparable with landing and take-off speeds of interceptor-type jet aircraft; however, attainment of good visibility through the mist generated by raindrop breakup presents a problem. For the simulated wind… more
Date: July 25, 1955
Creator: Ruggeri, Robert S.
Item Type: Refine your search to only Report
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Preliminary Evaluation of Flight-Weight XRJ47-W-5 Ram-Jet Engine at a Mach Number of 2.75

Description: Report presenting a free-jet investigation of the performance, burner-shell cooling, and ignition characteristics of a flight-weight 48-inch-diameter XRJ47-W-5 ramjet engine at an inlet Mach number of 2.75 and an angle of attack of 3 degrees. Data were obtained over a range of altitudes, inlet temperatures, and fuel-air ratios.
Date: July 26, 1955
Creator: Welna, Harry J. & Reilly, Dwight H.
Item Type: Refine your search to only Report
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Pressure Drop at Low Flow Rates of Water, Helium, Air, and Carbon Dioxide Through Small Copper Tubing

Description: Values of copper tubing pressure drops as determined by test for low flow rates of air, helium, carbon dioxide and water are contained herein. The work was performed in order to provide original data, useful for design work at Hanford Atomic Products Operation, and not available in any known handbook or other publication.
Date: July 20, 1955
Creator: Huck, C. E.
Item Type: Refine your search to only Report
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Production of Ionium From a Pitchblende Residue

Description: A plant designed for concentrating thorium by extraction from pitchblende residue by use of tributyl phosphate followed by hydrofluoric acid strip is described. The fluoride product is further purified by a solvent extraction flowsheet in hot laboratory equipment. An outline of the chemical technology used in this process is presented. (J.R.D.)
Date: July 28, 1955
Creator: Kuhlman, C. W.; Knecht, W. S. & Piper, R. D.
Item Type: Refine your search to only Report
open access

Production test 105-12-MR crossheader purge with chromic acid

Description: This document discusses high radiation levels which are being encountered in the reactor discharge areas during outages. Rear face dosage rates in B, D, F, DR and H Reactors now average 100 mr per hour. These high radiation rates seriously jeopardize desirable projects which require extensive work on the rear face of these reactors. Evidence has been obtained which indicates that a large source of the radiation is on the interior of the rear face piping and can be removed by chemical solutions.… more
Date: July 5, 1955
Item Type: Refine your search to only Report
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Radiological Sciences Department Quarterly Progress Report Research and Development Activities April - June, 1955

Description: This report constitutes the Quarterly Progress Report covering April-June 1955, for the Health Instruments Division research and development activities. Most of the studies described concern the biological fate, environmental transport of radioactive effluents, or development of instrumentation for radiation detection.
Date: July 11, 1955
Creator: Parker, H. M.
Item Type: Refine your search to only Report
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