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Mechanical Properties of Structural Materials at Low Temperatures: A Compilation From the Literature

Description: From Introduction: "The data are presented with the idea that an engineer who is making initial calculations on equipment for operation at cryogenic temperatures is more interested in obtaining quickly a definite figure that he in evaluating the experimental data given in several detailed reports on the same material. The graphs and tables presented here, consequently, represent an attempt by the authors to perform evaluation of data which have appeared in the literature and to present the design engineer with the result."
Date: June 1, 1960
Creator: McClintock, R. Michael & Gibbons, Hugh P.
Partner: UNT Libraries Government Documents Department

Foundry-Cupola Gases and Temperatures

Description: From Introduction: "Among the investigations that the Bureau of Mines is conducting with a view to increasing efficiency in utilization of fuels belonging to or for the use of the Government is an investigation of the processes that take place in a foundry cupola during a melt."
Date: 1913
Creator: Belden, A. W.
Partner: UNT Libraries Government Documents Department

Stabilization of Free Radicals at Low Temperatures: Summary of the NBS Program

Description: From Forward: "Although the first paper in this volume describes the general aspects of the technical management of the program, it is important to emphasize that much of success and productivity of this program stemmed from the sympathetic understanding of its basic viewpoint by both the Department of Defense and the National Bureau of Standards."
Date: August 1, 1960
Creator: Bass, Arnold M. & Broida, H. P.
Partner: UNT Libraries Government Documents Department

Thermocouple Materials

Description: From Introduction: "The purpose of this paper is to present information on materials that are used from 0 degrees C up in thermocouples intended primarily as immersed temperature sensors, and to give so far as is practical properties of these materials that might affect their use in temperature measurement."
Date: March 1, 1962
Creator: Caldwell, F. R.
Partner: UNT Libraries Government Documents Department

Temperature Distribution in the Crystallization of Undercooled Liquids in Cylindrical Tubes

Description: From Introduction: "The major difficulty in interpreting the results obtained by this simple experimental technique is the specification of the temperature at the crystal-liquid interface. Since, the liquid-to-solid transformation is exothermic the temperature in the vicinity of the interface will exceed the temperature in the vicinity of the interface will exceed the temperature of the bulk of the cooling bath, which is the quantity most conveniently measured and most frequently reported."
Date: May 1964
Creator: Brian, P. L. T. & Sperry, P. R.
Partner: UNT Libraries Government Documents Department

The 1350 F stress-rupture properties of two wrought alloys and three cast alloys

Description: From Summary: "These properties compare favorably with those of the strongest similar alloys previously investigated. However, compared with a 60Cr-25Fe-15Mo alloy, the three cobalt-chronium-nickel cast alloys are inferior. A correlation of NACA and OSRD (Project NRC-8) data is presented, showing the variation of rupture strengths with temperature in the range of 1350^o to 2000^o for alloys."
Date: November 1947
Creator: Reynolds, E. E.; Freeman, J. W. & White, A. E.
Partner: UNT Libraries Government Documents Department

Aerodynamic heating of rocket-powered research vehicles at hypersonic speeds

Description: From Introduction: "The purpose of this paper is to present and discuss skin temperature measurements from two flight tests. Temperature measurements were obtained to a Mach number of 5.4 on the first flight and to a Mach number of 10.4 on the second flight."
Date: July 19, 1955
Creator: Piland, Robert O. & Collie, Katherine A.
Partner: UNT Libraries Government Documents Department

Analysis of temperature distribution in liquid-cooled turbine blades

Description: From Summary: "This report presents analytical methods for computing temperature distributions in liquid-cooled turbine blades, or in simplified shapes used to approximate sections of the blade. The individual analyses are first presented in terms of their mathematical development. Nondimensional charts to simplify some temperature-distribution calculations are also given."
Date: October 27, 1950
Creator: Livingood, John N. B. & Brown, W. Byron
Partner: UNT Libraries Government Documents Department

Solar Turbulence in Earth's Global and Regional Temperature Anomalies

Description: This article presents a study of the influence of solar activity on the earth's temperature. In particular, the authors focus on the repercussion of the fluctuations of the solar irradiance on the temperature of the Northern and Southern hemispheres as well as on land and ocean regions.
Date: February 26, 2004
Creator: Scafetta, Nicola; Grigolini, Paolo; Imholt, Timothy; Roberts, James A. & West, Bruce J.
Partner: UNT College of Arts and Sciences

Thermal Expansion of Technical Solids at Low Temperatures: A Compilation From the Literature

Description: Report giving tables of the linear contraction relative to 293 ºK, (L293ºLT)/L293, and the linear expansion coefficient, dL/L293dT, of thirty elements, forty-five alloys, twenty-two other inorganic substances and twenty plastics and elastomers in the temperature range, 0 to 300 ºK.
Date: May 19, 1961
Creator: Corruccini, Robert J. & Gniewek, John J.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 2. High-Temperature Specific-Heat Equations for Inorganic Substances

Description: From introduction: "The present work reviews the available high-temperature thermal data on inorganic compounds and gives representative specific-heat equations valid at high temperatures for use in thermodynamic calculations."
Date: 1934
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

A Method of Calculating Transient Temperatures in a Multiregion, Axisymmetric, Cylindrical Configuration the Argus Program, 1089/Re248, Written in Fortran II

Description: From Abstract: "A detailed description is given of ARGUS, a FORTRAN II computer program for calculating transient temperatures in any concentric cylindrical configuration. Included are an explanation of the mathematical methods, a discussion of special features and restrictions, input and output descriptions, operating instructions, several sample problems, and the code listing."
Date: November 1963
Creator: Schoeberle, D. F.; Heestand, J.; Miller, L. B. & Miller, L. B.
Partner: UNT Libraries Government Documents Department

Corrections on the Thermometer Reading in an Air Stream

Description: A method is described for checking a correction formula, based partly on theoretical considerations, for adiabatic compression and friction in flight tests and determining the value of the constant. It is necessary to apply a threefold correction to each thermometer reading. They are a correction for adiabatic compression, friction and for time lag.
Date: October 1940
Creator: Van der Maas, H. J. & Wynia, S.
Partner: UNT Libraries Government Documents Department

Correcting Horsepower Measurements to a Standard Temperature

Description: This report discusses the relation between the temperature of the air at the entrance to the carburetor and the power developed by the engine. Its scope is limited to a consideration of the range of temperatures likely to result from changes of season, locality, or altitude, since its primary aim is the finding of a satisfactory basis for correcting power measurements to a standard temperature. From the results of over 1,600 tests it is concluded that if calculations be based on the assumption that the indicated horsepower of an engine varies inversely as the square root of the absolute temperature of the carburetor air the values obtained will check closely experimental measurements.
Date: 1925
Creator: Sparrow, Stanwood W.
Partner: UNT Libraries Government Documents Department

Exhaust-valve temperatures in a liquid-cooled aircraft-engine cylinder as affected by engine operating variables

Description: Report presenting an investigation of the operating temperatures of sodium-cooled exhaust valves in a liquid-cooled cylinder for a large variety of engine conditions by means of a thermocouple embedded in the valve head. The engine operating variables that affected the valve temperature most for a given percentage change in the operating variable included fuel-air ratio, indicated mean effective pressure, compression ratio, and spark advance. Results regarding temperature variations in constant engine conditions, effect of engine operating variables on exhaust-valve temperatures, and exhaust-valve temperatures at which preignition was encountered are provided.
Date: February 1947
Creator: Sutor, Alois T.; Corrington, Lester C. & Dudugjian, Carl
Partner: UNT Libraries Government Documents Department

Transient temperature in heat exchangers for supersonic blowdown tunnels

Description: Report presenting an analysis of the heat transfer between an insulated tube and the fluid moving through the tube for three inlet fluid conditions: one with constant fluid temperature, one with the temperature decreased exponentially, and one with the temperature decreasing linearly with time. Results regarding the correlation of computed and experimental temperatures, multiple-tube bundle, and single insulated tube are provided.
Date: April 1954
Creator: Judd, Joseph H.
Partner: UNT Libraries Government Documents Department

Determination of flame temperatures from 2000 to 3000 K by microwave absorption

Description: Report presenting equations derived for the measurement of flame temperatures from the attenuation of a microwave beam by temperature-induced free electrons from chemical elements introduced in the flame. The free electron collision frequency and an effective ionization potential for four alkali elements were determined experimentally. Results regarding the blast burner, liquid propellant burner, and effects of addition of salt solutions on flames are provided.
Date: August 1954
Creator: Kuhns, Perry W.
Partner: UNT Libraries Government Documents Department

Atmospheric temperature observations to 100,000 feet for several climatological regions of the Northern Hemisphere

Description: Report presenting radiosonde measurements of upper-air temperatures taken over a 5-year period at nine stations in the northern hemisphere are summarized in order to provide information on the temperatures likely to be encountered during airplane and missile operations up to 100,000 feet.
Date: November 1957
Creator: Tolefson, H. B.
Partner: UNT Libraries Government Documents Department

Preliminary discussion of fuel temperatures attained in supersonic aircraft

Description: Report presenting an exploration of fuel temperatures, which includes variables such as the aircraft speed, flight time, flight altitude, materials of construction, location of fuel tanks relative to aircraft skin and hot engine parts, and other factors. The results illustrate that it is impossible to predict quantitatively the fuel temperatures that will be attained in aircraft without detailed design information on each machine.
Date: March 15, 1955
Creator: Gibbons, Louis C.
Partner: UNT Libraries Government Documents Department

Free-flight skin-temperature and surface-pressure measurements on a highly polished nose having a 100 degree total-angle cone and a 10 degree half-angle conical flare section up to a Mach number of 4.08

Description: Report presenting measurements of the skin temperature and surface pressure on a large-scale, highly polished nose with a relatively sharp-tipped 100 degree total-angle cone followed by a conical flare section of 10 degree half-angle. Heating on the forward 3.0 to 4.5 inches of the 100 degrees cone was generally lower than that on the rearward portion.
Date: August 23, 1957
Creator: Rashis, Bernard & Bond, Aleck C.
Partner: UNT Libraries Government Documents Department

Recovery temperatures and heat transfer near two-dimensional roughness elements at Mach 3.1

Description: Report presenting an investigation to determine the effect of single and multiple two-dimensional roughness elements on the temperature distribution, pressure distribution, and heat transfer at Mach 3.1. Results regarding recovery temperatures and heat transfer are provided.
Date: February 1958
Creator: Brinich, Paul F.
Partner: UNT Libraries Government Documents Department