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516 Matching Results
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The Coal Industry of Brazil: Part 1. General Economy, Production, and Marketing
Report issued by the Bureau of Mines discussing the Brazilian coal industry. Location details and their production levels are presented. This report includes tables, maps, and illustrations.
Date:
1949
Creator:
Good, John E.; Abreu, Alvaro & Fraser, Thomas
Object Type:
Report
System:
The UNT Digital Library
A Method of Resolving Oil-Field-Waste Emulsions
Report issued by the Bureau of Mines discussing the recovery of waste emulsions in crude-oil storage tanks. As stated in the introduction, this study was undertaken to find a method of recovering a valuable oil from pit-waste emulsion" (p. 2). Detailed recovery methods are presented. This report includes tables, illustrations, and photographs.
Date:
1949
Creator:
Horne, J. W. & Watkins, J. Wade
Object Type:
Report
System:
The UNT Digital Library
LeTourneau Tech's NOW, Volume 3, Number 12, June 15, 1949
Semi-monthly newsletter LeTourneau Technical Institute of Texas containing religious articles, updates about news and events on campus, and other information of interest to students.
Date:
June 15, 1949
Creator:
LeTourneau Technical Institute
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
LeTourneau Tech's NOW, Volume 3, Number 15, August 1, 1949
Semi-monthly newsletter LeTourneau Technical Institute of Texas containing religious articles, updates about news and events on campus, and other information of interest to students.
Date:
August 1, 1949
Creator:
LeTourneau Technical Institute
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
LeTourneau Tech's NOW, Volume 3, Number 4, February 15, 1949
Semi-monthly newsletter LeTourneau Technical Institute of Texas containing religious articles, updates about news and events on campus, and other information of interest to students.
Date:
February 15, 1949
Creator:
LeTourneau Technical Institute
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Summary of Information Relating to Gust Loads on Airplanes
"Available information on gust structure, airplane reactions, and pertinent operating statistics has been examined. This report attempts to coordinate this information with reference to the prediction of gust loads on airplanes. The material covered represents research up to October 1947" (p. 807).
Date:
August 5, 1949
Creator:
Donely, Philip
Object Type:
Report
System:
The UNT Digital Library
Summary of Information Relating to Gust Loads on Airplanes
"Available information on gust structure, airplane reactions, and pertinent operating statistics has been examined. This paper attempts to coordinate this information with reference to the prediction of gust loads on airplanes. The material covered represents research up to October 1947" (p. 1).
Date:
November 1949
Creator:
Donely, Philip
Object Type:
Report
System:
The UNT Digital Library
An Analysis of Supersonic Aerodynamic Heating With Continuous Fluid Injection
From Introduction: "The aerodynamic heating problem assumes considerable importance at high-supersonic speeds. Sanger and Bredt (reference 1) have calculated the high-speed aerodynamic forces and equilibrium surface temperature at extremely high altitudes where the molecular mean free path is large (free-molecule-flow region) compared with a characteristic body dimension. The theoretical investigation of Lees (reference 2) on the stability of the laminar boundary layer in compressible flow indicates that the laminar boundary layer is completely stable at all Reynolds numbers at supersonic speeds for a sufficiently low ratio of surface temperature to stream temperature."
Date:
September 29, 1949
Creator:
Klunker, E. B. & Ivey, H. Reese
Object Type:
Report
System:
The UNT Digital Library
Strength and Creep Characteristics of Ceramic Bodies at Elevated Temperatures
Report presenting the results of a total of 109 tests to evaluate certain characteristics of six ceramic oxide bodies for high-temperature applications, especially as turbine blades. The primary emphasis was placed on determinations of strength and resistance to creep under tensile strength at elevated temperatures. Results regarding step tests, short-time tensile tests, stress-rupture test results, modulus of elasticity, correlation of absorption and extension, stress-temperature-time effects, and general evaluation of bodies are provided.
Date:
April 1949
Creator:
Burdick, M. D.; Moreland, R. E. & Geller, R. F.
Object Type:
Report
System:
The UNT Digital Library
Ambient Pressure Determination at High Altitudes by Use of Free-Molecule Theory
"Several methods (references 1 and 2) based on gas-dynamic principles are available for reducing such measurements. The results obtained by these methods are subject to the limitation of the gas-dynamic theory which is that the mean free path of the molecules between impacts, is small with respect to the measuring device. Inasmuch as no information on the subject is to present known to be available, the purpose of the present paper is to present a method based on the concept of free-molecule theory for use in connection with this problem" (p. 1).
Date:
March 1949
Creator:
Wiener, Bernard
Object Type:
Report
System:
The UNT Digital Library
A radar method of calibrating airspeed installations on airplanes in maneuvers at high altitudes and at transonic and supersonic speeds
A method of calibrating the static-pressure source of a pitot static airspeed installation on an airplane in level flight, dives, and other maneuvers at high altitude and at transonic and supersonic speeds is described. The method principally involves the use of radar-phototheodolite tracking equipment. The various sources of error in the method are discussed and sample calibrations are included.
Date:
August 31, 1949
Creator:
Zalovcik, John A.
Object Type:
Report
System:
The UNT Digital Library
An investigation of aircraft heaters 31: summary of laboratory testing of several exhaust-gas and air heat exchangers
Report presenting a comparison of the thermal performance and pressure-drop characteristics of heat exchangers on a heat-exchanger test stand. The exchangers included parallel and cross-flow units as well as extended-surface and all-prime-surface units.
Date:
July 1949
Creator:
Boelter, L. M. K.; Guibert, A. G.; Romie, F. E.; Sanders, V. D. & Rademacher, J. M.
Object Type:
Report
System:
The UNT Digital Library
Investigations at supersonic speeds of 22 triangular wings representing two airfoil sections for each of 11 apex angles
The results of tests of 22 triangular wings, representing two leading-edge shapes for each of 11 apex angles, at Mach numbers 1.62, 1.92, and 1.40 are presented and compared with theory. All wings have a common thickness ratio of 8 percent and a common maximum-thickness point at 18 percent chord. Lift, drag, and pitching moment are given for all wings at each Mach number. The relation of transition in the boundary layer, shocks on the wing surfaces, and characteristics of the pressure distributions is discussed for several wings.
Date:
March 30, 1949
Creator:
Love, Eugene S.
Object Type:
Report
System:
The UNT Digital Library
Correlation of Soil Properties with Geologic Information: Report Number 1, Simplification of the Liquid Limit Test Procedure
Introduction: The general project of correlating soil properties with geologic information, one phase of which is described in this report, consists in comparing soil properties with soil types and with their geologic history and environment in order to determine what correlations are possible.
Date:
June 1949
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Optical Instruments for the Atomic Industry
The following report presents some points of interest obtained from the use of optical equipment at the Hanford Works; however, this report does not give complete descriptions of the instruments or theories. Full descriptions can be found in the Instrument Division Manual, Section IV.
Date:
1949
Creator:
Holeman, J. M.
Object Type:
Report
System:
The UNT Digital Library
Preparation of bismuth powder
The Purpose of this manual is to describe preparation of bismuth powder for use in process operations. Bismuth powder is to be prepared in Room 232 of ``T`` Building where all necessary apparatus is installed.
Date:
February 15, 1949
Creator:
Cox, G.C.
Object Type:
Report
System:
The UNT Digital Library
Materials Testing Reactor Project: Coffins and Coffin Handling, Design Report No. 21
The following report discusses special shielded containers, called coffins, that are used for removing beam hole plugs from the reactor, transporting them to plug storage and inserting them therein. This report focuses on the handling of dummy and experimental beam hole plugs.
Date:
December 5, 1949
Creator:
Paleczny, M. P.
Object Type:
Report
System:
The UNT Digital Library
Homogeneous Reactor Preliminary Process Design Report
"The following report is meant to serve a two fold purpose. First, it is the quarterly report of the homogeneous reactor project for the Technical Division of Oak Ridge National Laboratory. Secondly, it is a description and general feasibility discussion of a 200-1000 K.W. pilot model, homogeneous reactor."
Date:
December 28, 1949
Creator:
Graham, C. B.; Secoy, C. H.; Spiewak, Irving; Taylor, E. H.; Weinberg, Alvin Martin, 1915-2006; Winters, C. E. et al.
Object Type:
Report
System:
The UNT Digital Library
Progress Report: August 1949: Preparation of Ductile Zirconium
Report discussing progress made by the National Research Corporation in developing preparation of ductile zirconium for the month of August, 1949.
Date:
September 9, 1949
Creator:
DiPietro, W. O.; Findlay, G. R. & Mellen, G. L.
Object Type:
Report
System:
The UNT Digital Library
Progress Report: July 1949: Preparation of Ductile Zirconium
Report discussing progress made by the National Research Corporation in developing preparation methods for ductile zirconium for the month of July, 1949.
Date:
August 10, 1949
Creator:
DiPietro, W. O.; Findlay, G. R. & Mellen, G. L.
Object Type:
Report
System:
The UNT Digital Library
Optical Properties of Three Uranium Phosphates
Abstract: "Crystal system, crystal habit, and principal refractive indices, of uranyl hydrogen phosphate tetrahydrate, uranyl ammonium phosphate trihydrate, and uranyl phosphate tetrahydrate are reported. A procedure for differentation of these three compounds using this data was developed."
Date:
September 30, 1949
Creator:
Harris, W. W. & Scott, Roberta H.
Object Type:
Report
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
Object Type:
Report
System:
The UNT Digital Library
Redox : Analytical Research Group Report [for] March and April 1949
Report discussing the results of research conducted by the Hanford Works Analytical Research Group during the period from March 1949 to April 1949.
Date:
June 21, 1949
Creator:
Schmidt, H. R.
Object Type:
Report
System:
The UNT Digital Library
PROGRESS REPORT FOR OCTOBER 1 TO OCTOBER 31, 1948. SECTION A. FIN TUBE PROJECT. SECTION B. G.E. WASHER PROJECT
None
Date:
June 10, 1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library