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  Partner: UNT Libraries Government Documents Department
 Decade: 1950-1959
4-Channel Line Driver: Modified

4-Channel Line Driver: Modified

Date: 1950?
Creator: Titterton, E. W.
Description: Technical drawing of line drivers and amplifiers for use in nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
30 Rv. Power Supply

30 Rv. Power Supply

Date: 1950?
Creator: U.S. Atomic Energy Commission
Description: Technical drawing of electronic circuits and power supplies to nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
THE 1A HYBRID FLOWSHEET

THE 1A HYBRID FLOWSHEET

Date: January 1, 1950
Creator: Coplan, B.V.; Davidson, J.K.; Hass, W.O. & Zebroski, E.L.
Description: A preliminary hybrid 1A flowsheet in which the extraction section operates substantially acid while the scrub section is acid deficient is presented. The effects of added nitric acid on the performance of the acid deficient 1A flowsheet are considered, and the need for control of the entering stream acidities in such flowsheets is evaluated. Data on batch-countercurrent decontamination and plutonium recovery are included. (J.R.D.)
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics of damping screens

Aerodynamic characteristics of damping screens

Date: January 1, 1950
Creator: Schubauer, G B; Spangenberg, W G & Klebanoff, P S
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The aerodynamic forces on slender plane- and cruciform-wing and body combinations

The aerodynamic forces on slender plane- and cruciform-wing and body combinations

Date: January 1, 1950
Creator: Spreiter, John R
Description: The load distribution, forces, and moments are calculated theoretically for inclined slender wing-body combinations consisting of a slender body of revolution and either a plane or cruciform arrangement of low-aspect-ratio pointed wings. The results are applicable at subsonic and transonic speeds, and at supersonic speeds, provided the entire wing-body combination lies near the center of the Mach cone.
Contributing Partner: UNT Libraries Government Documents Department
American Lignites: Geological Occurrence, Petrographic Composition, And Extractable Waxes

American Lignites: Geological Occurrence, Petrographic Composition, And Extractable Waxes

Date: 1950
Creator: Selvig, W. A.; Ode, W. H.; Parks, B. C. & O'Donnell, H. J.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis of spanwise temperature distribution in three types of air-cooled turbine blade

Analysis of spanwise temperature distribution in three types of air-cooled turbine blade

Date: January 1, 1950
Creator: Livingood, John N B & Brown, W Byron
Description: Methods for computing spanwise blade-temperature distributions are derived for air-cooled hollow blades, air-cooled hollow blades with inserts, and air-cooled blades containing internal cooling fins. Individual and combined effects on spanwise blade-temperature distributions of cooling-air and radial heat conduction are determined. In general, the effects of radiation and radial heat conduction were found to be small and the omission of these variations permitted the construction of nondimensional charts for use in determining spanwise temperature distribution through air-cooled turbine blades. An approximate method for determining the allowable stress-limited blade-temperature distribution is included, with brief accounts of a method for determining the maximum allowable effective gas temperatures and the cooling-air requirements. Numerical examples that illustrate the use of the various temperature-distribution equations and of the nondimensional charts are also included.
Contributing Partner: UNT Libraries Government Documents Department
An analysis of supersonic aerodynamic heating with continuous fluid injection

An analysis of supersonic aerodynamic heating with continuous fluid injection

Date: January 1, 1950
Creator: Klunker, E G & Ivey, H Reese
Description: An analysis of the steady-state aerodynamic heating problem at high-supersonic speeds is made for two-dimensional flows with laminar boundary layers. The aerodynamic heating is shown to be reduced substantially by injecting a small amount of coolant through a porous surface into the boundary layer. The analysis includes calculations of the cooling requirements and equilibrium surface temperatures for flat plates and for an equilibrium surface temperatures for flat plates and for flat porous surfaces with several rates of fluid injection at Mach numbers from 5 to 15 and altitudes from sea level to 200,000 feet. Some calculations of the skin friction are also included.
Contributing Partner: UNT Libraries Government Documents Department
Annual report of the National Advisory Committee for Aeronautics (33rd).administrative report including Technical Report nos. 863 to 891

Annual report of the National Advisory Committee for Aeronautics (33rd).administrative report including Technical Report nos. 863 to 891

Date: January 1, 1950
Creator: unknown
Description: Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, summaries of the committee's activities and research accomplished, bibliographies, and financial report.
Contributing Partner: UNT Libraries Government Documents Department
The application of Green's theorem to the solution of boundary-value problems in linearized supersonic wing theory

The application of Green's theorem to the solution of boundary-value problems in linearized supersonic wing theory

Date: January 1, 1950
Creator: Heaslet, Max A & Lomax, Harvard
Description: Following the introduction of the linearized partial differential equation for nonsteady three-dimensional compressible flow, general methods of solution are given for the two and three-dimensional steady-state and two-dimensional unsteady-state equations. It is also pointed out that, in the absence of thickness effects, linear theory yields solutions consistent with the assumptions made when applied to lifting-surface problems for swept-back plan forms at sonic speeds. The solutions of the particular equations are determined in all cases by means of Green's theorem, and thus depend on the use of Green's equivalent layer of sources, sinks, and doublets. Improper integrals in the supersonic theory are treated by means of Hadamard's "finite part" technique.
Contributing Partner: UNT Libraries Government Documents Department
Application of radial-equilibrium condition to axial-flow compressor and turbine design

Application of radial-equilibrium condition to axial-flow compressor and turbine design

Date: January 1, 1950
Creator: Wu, Chung-Hua & Wolfenstein, Lincoln
Description: Basic general equations governing the three-dimensional compressible flow of gas through a compressor or turbine are given in terms of total enthalpy, entropy, and velocity components of the gas. Two methods of solution are obtained for the simplified, steady axially symmetric flow; one involves the use of a number of successive planes normal to the axis of the machine and short distances apart, and the other involves only three stations for a stage in which an appropriate radial-flow path is used. Methods of calculation for the limiting cases of zero and infinite blade aspect ratios and an approximate method of calculation for finite blade aspect ratio are also given. In these methods, the blade loading and the shape of the annular passage wall may be arbitrarily specified.
Contributing Partner: UNT Libraries Government Documents Department
Application of the Laplace transformation to the solution of the lateral and longitudinal stability equations

Application of the Laplace transformation to the solution of the lateral and longitudinal stability equations

Date: January 1, 1950
Creator: Mokrzycki, G A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The application of the statistical theory of extreme values to gust-load problems

The application of the statistical theory of extreme values to gust-load problems

Date: January 1, 1950
Creator: Press, Harry
Description: An analysis is presented which indicates that the statistical theory of extreme values is applicable to the problems of predicting the frequency of encountering the larger gust loads and gust velocities for both specific test conditions as well as commercial transport operations. The extreme-value theory provides an analytic form for the distributions of maximum values of gust load and velocity. Methods of fitting the distribution are given along with a method of estimating the reliability of the predictions. The theory of extreme values is applied to available load data from commercial transport operations. The results indicate that the estimates of the frequency of encountering the larger loads are more consistent with the data and more reliable than those obtained in previous analyses. (author).
Contributing Partner: UNT Libraries Government Documents Department
Attainable circulation about airfoils in cascade

Attainable circulation about airfoils in cascade

Date: January 1, 1950
Creator: Goldstein, Arthur W & Mager, Artur
Description: From consideration of available information on boundary-layer behavior, a relation among profile thickness, maximum surface velocity, Reynolds number, velocity diagram, and solidity is established for a cascade of airfoils immersed in a two-dimensional incompressible fluid flow. Several cascades are computed to show the effect of various cascade design parameters on minimum required cascade solidity. Comparisons with experimentally determined blade performance show that the derived blade loadings are equal or higher for moderate flow deceleration and somewhat lower for large deceleration. Blades with completely laminar flow appear practical for impulse or reaction blading.
Contributing Partner: UNT Libraries Government Documents Department
Beef on the farm : slaughtering, cutting, curing.

Beef on the farm : slaughtering, cutting, curing.

Date: 1950
Creator: Black, W. H. (William Henry), 1888-1949 & McComas, E. W. (Earl W.)
Description: Describes the methods for slaughtering fresh beef on the farm; provides instructions outlining procedures for cutting and curing beef.
Contributing Partner: UNT Libraries Government Documents Department
Beef production on the farm.

Beef production on the farm.

Date: 1950
Creator: McComas, E. W. (Earl W.)
Description: A guide to raising beef cattle and fattening calves. Includes a discussion of breeding stock, feeding, herd management, and disease prevention.
Contributing Partner: UNT Libraries Government Documents Department
Bibliography of Pressure Hydrogenation (In Three Parts): [Part] 1. Review and Compilation of the Literature on Pressure Hydrogenation of Liquid and Solid Carbonaceous Materials

Bibliography of Pressure Hydrogenation (In Three Parts): [Part] 1. Review and Compilation of the Literature on Pressure Hydrogenation of Liquid and Solid Carbonaceous Materials

Date: 1950
Creator: Wiley, J. L. & Anderson, H. C.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Blockage corrections for three-dimensional-flow closed-throat wind tunnels, with consideration of the effect of compressibility

Blockage corrections for three-dimensional-flow closed-throat wind tunnels, with consideration of the effect of compressibility

Date: January 1, 1950
Creator: Herriot, John G
Description: Theoretical blockage corrections are presented for a body of revolution and for a three-dimensional unswept wing in a circular or rectangular wind tunnel. The theory takes account of the effects of the wake and of the compressibility of the fluid, and is based on the assumption that the dimensions of the model are small in comparison with those of the tunnel throat. Formulas are given for correcting a number of the quantities, such as dynamic pressure and Mach number, measured in wing-tunnel tests. The report presents a summary and unification of the existing literature on the subject.
Contributing Partner: UNT Libraries Government Documents Department
Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania

Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania

Date: 1950
Creator: Ash, S. H. (Simon Harry), b. 1889
Description: Report issued by the U.S. Bureau of Mines regarding a buried valley area (a deposit of clay, sand, and gravel) around the Susquehanna River in the anthracite region of Pennsylvania, near the city of Wilkes-Barre. According the the introduction, "The purpose of this report is to furnish data on the buried valley of the Susquehanna River that will be useful in solving the anthracite mine-water problem" and "This report (a) discusses the physical characteristics and the influence of the buried valley of the Susquehanna River on anthracite mining in the Wyoming Valley area of the Northern field, (b) correlates pertinent data relating to the buried valley, (c) presents accurate contour maps showing the position of the top of solid rock underlying the water-soaked valley-fill deposits in the buried valley, and (d) presents cross sections at regular intervals across the buried valley showing the irregularities in trend and bottom as well as the thickness, configuration, and nature of the materials composing the water-bearing valley-fill deposits" (p. 3).
Contributing Partner: UNT Libraries Government Documents Department
The calculation of downwash behind supersonic wings with an application to triangular plan forms

The calculation of downwash behind supersonic wings with an application to triangular plan forms

Date: January 1, 1950
Creator: Lomax, Harvard; Sluder, Loma & Heaslet, Max A
Description: A method is developed consistent with the assumptions of small perturbation theory which provides a means of determining the downwash behind a wing in supersonic flow for a known load distribution. The analysis is based upon the use of supersonic doublets which are distributed over the plan form and wake of the wing in a manner determined from the wing loading. The equivalence in subsonic and supersonic flow of the downwash at infinity corresponding to a given load distribution is proved.
Contributing Partner: UNT Libraries Government Documents Department
Calculation of the aerodynamic loading of swept and unswept flexible wings of arbitrary stiffness

Calculation of the aerodynamic loading of swept and unswept flexible wings of arbitrary stiffness

Date: January 1, 1950
Creator: Diederich, Franklin W
Description: A method is presented for calculating the aerodynamic loading, the divergence speed, and certain stability derivatives of swept and unswept wings and tail surfaces of arbitrary stiffness. Provision is made for using either stiffness curves and root rotation constants or structural influence coefficients in the analysis. Computing forms, tables of numerical constants required in the analysis, and an illustrative example are included to facilitate calculations by means of the method.
Contributing Partner: UNT Libraries Government Documents Department
Calibration of Instruments for Measuring Wind Velocity and Direction

Calibration of Instruments for Measuring Wind Velocity and Direction

Date: January 1, 1950
Creator: Vogler, Raymond D. & Pilny, Miroslav J.
Description: Signal Corps wind equipment AN/GMQ-1 consisting of a 3-cup anemometer and wind vane was calibrated for wind velocities from 1 to 200 miles per hour. Cup-shaft failure prevented calibration at higher wind velocities. The action of the wind vane was checked and found to have very poor directional accuracy below a velocity of 8 miles per hour. After shaft failure was reported to the Signal Corps, the cup rotors were redesigned by strengthening the shafts for better operation at high velocities. The anemometer with the redesigned cup rotors was recalibrated, but cup-shaft failure occurred again at a wind velocity of approximately 220 miles per hour. In the course of this calibration two standard generators were checked for signal output variation, and a wind-speed meter was calibrated for use with each of the redesigned cup rotors. The variation of pressure coefficient with air-flow direction at four orifices on a disk-shaped pitot head was obtained for wind velocities of 37.79 53.6, and 98.9 miles per hour. A pitot-static tube mounted in the nose of a vane was calibrated up to a dynamic pressure of 155 pounds per square foot, or approximately 256 miles per hour,.
Contributing Partner: UNT Libraries Government Documents Department
Carbonizing Properties: Pocahontas Number 6, Davy Sewell, and Fire Creek Coals from West Virginia and Upper and Lower Kittanning and Upper and Lower Freeport Coals from Pennsylvania

Carbonizing Properties: Pocahontas Number 6, Davy Sewell, and Fire Creek Coals from West Virginia and Upper and Lower Kittanning and Upper and Lower Freeport Coals from Pennsylvania

Date: 1950
Creator: Davis, J. D.; Reynolds, D. A.; Brewer, R. E.; Wolfson, D. E.; Naugle, B. W. & Birge, G. W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Carbonizing Properties: West Virginia Coals from the Eagle, Number 2 Gas, Pocahontas Number 3, and Pocahontas Number 4 Beds

Carbonizing Properties: West Virginia Coals from the Eagle, Number 2 Gas, Pocahontas Number 3, and Pocahontas Number 4 Beds

Date: 1950
Creator: Davis, J. D.; Reynolds, D. A.; Brewer, R. E.; Ode, W. H.; Naugle, B. W.; Wolfson, D. E. et al.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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