Resource Type

Air-consumption parameters for automatic mixture control of aircraft engines (open access)

Air-consumption parameters for automatic mixture control of aircraft engines

From Introduction: "The purpose of this analysis was to investigate the use of function of intake-manifold temperature and pressure, exhaust back pressure, and engine speed in place of a ventri as a means of measuring engine air consumption and to determine if this function is suitable for automatic mixture control."
Date: September 1944
Creator: Shames, Sidney J.
System: The UNT Digital Library
Magnolia Oil Field, Columbia County, Arkansas: Part 1. Petroleum-Engineering Study; Part 2. Derivation and Application of Material-Balance Equations (open access)

Magnolia Oil Field, Columbia County, Arkansas: Part 1. Petroleum-Engineering Study; Part 2. Derivation and Application of Material-Balance Equations

Report issued by the U.S. Bureau of Mines on studies conducted at the Magnolia oil fields in Columbia County, Arkansas. History, geology, and methods are presented. This report includes tables, graphs, maps, and illustrations.
Date: September 1943
Creator: Carpenter, Charles B.; Schroeder, H. J. & Cook, Alton B.
System: The UNT Digital Library
Petroleum-Engineering Study of the New Hope Oil Field, Franklin County, Texas (open access)

Petroleum-Engineering Study of the New Hope Oil Field, Franklin County, Texas

Report issued by the Bureau of Mines regarding studies on the modern petroleum engineering techniques used in Franklin County, Texas. Drilling methods, and analysis of the core samples are presented. This report includes tables, and graphs.
Date: September 1949
Creator: Carpenter, Charles B.; Anderson, Kenneth F. & Cook, Alton B.
System: The UNT Digital Library
Laramie Sponge-Iron Pilot Plant (open access)

Laramie Sponge-Iron Pilot Plant

Report issued by the Bureau of Mines over studies conducted on the pilot plant in Laramie County, Wyoming. As stated in the introduction, "the purpose of this report is to record information derived from recent experimental work that had as its objective the development and demonstration of one method of producing sponge iron" (p. 2). This report includes tables, illustrations, and photographs.
Date: September 1948
Creator: Johnston, T. L. & Mahan, W. M.
System: The UNT Digital Library
Investigation of Melrose Zinc-Lead District, Ottawa County, Oklahoma, and Cherokee County, Kansas (open access)

Investigation of Melrose Zinc-Lead District, Ottawa County, Oklahoma, and Cherokee County, Kansas

Report issued by the Bureau of Mines over studies conducted on the Melrose zinc-lead deposits. Methods used in the investigation are listed. The characteristics of the zinc-lead deposits are presented also. This report includes tables, maps, and illustrations.
Date: September 1948
Creator: Knox, Clinton C.
System: The UNT Digital Library
Investigation of the Blewett Zinc-Lead Deposit, Jo Daviess County, Illinois (open access)

Investigation of the Blewett Zinc-Lead Deposit, Jo Daviess County, Illinois

Report issued by the Bureau of Mines over studies conducted on the Blewett zinc-lead mine of Illinois. Samples obtained through churn-drill and diamond drill holes are analyzed. This report includes tables, maps, and illustrations.
Date: September 1948
Creator: Holt, Stephen P.
System: The UNT Digital Library
A Process for the Production of Iron-Free Alum: Part 2. Pilot-Plant Development (open access)

A Process for the Production of Iron-Free Alum: Part 2. Pilot-Plant Development

Report issued by the Bureau of Mines over studies conducted on the production processes of iron-free alum. This is the second part of the report, and focuses on the development and operation of a continuous pilot plant. This report includes tables, graphs, photographs, and illustrations.
Date: September 1948
Creator: Cunningham, William K.; Gee, Edwin A. & Heindl, R. August
System: The UNT Digital Library
Lead-Zinc-Silver in the Poughkeepsie District and Part of the Upper Uncompahgre and Mineral Point Districts, Ouray and San Juan Counties, Colorado (open access)

Lead-Zinc-Silver in the Poughkeepsie District and Part of the Upper Uncompahgre and Mineral Point Districts, Ouray and San Juan Counties, Colorado

Report issued by the Bureau of Mines over mining districts in Colorado. As noted in the introduction, "in this report the physical features, climate, and ore deposits of the districts are described, and a brief history of mining and production of lead, zinc, and silver is given" (p. 4). This report includes tables, illustrations, and maps.
Date: September 1949
Creator: Hazen, Scott W., Jr.
System: The UNT Digital Library
Titanium Minerals in Central and Northeastern Florida (open access)

Titanium Minerals in Central and Northeastern Florida

Report issued by the Bureau of Mines over titanium minerals in Florida. Evaluation of titanium samples obtained is presented. This report includes tables, and maps.
Date: September 1949
Creator: Thoenen, J. R. & Warne, J. D.
System: The UNT Digital Library
The Identification and Determination of Trace Amounts of Rare Earth Elements in Graphite by Neutron Activation (open access)

The Identification and Determination of Trace Amounts of Rare Earth Elements in Graphite by Neutron Activation

Abstract: "A method is described for the identification and quantitative determination of trace amounts of rare earths in graphite by measurement of the energies and decays of the activities induced by neutron irradiation. The specific rare earth elements identified are europium and samarium. During the development of this method, the half-lives of Eu-152 and Sm-153 were determined. These are reported as 9.32 +/- 0.04 hours and 46.34 +/- 0.23 respectively."
Date: September 1, 1949
Creator: Ross, A. M.
System: The UNT Digital Library
Life of Van Stone Corrective Measures (open access)

Life of Van Stone Corrective Measures

This report is a document summarizing all information available on life aspects of various measures proposed to reduce or eliminate corrosion of Van Stone flanger.
Date: September 12, 1949
Creator: Botsford, C. W. & Eschbach, E. A.
System: The UNT Digital Library
Report on Hack's Canyon Uranium Mine, Mohave County, Arizona (open access)

Report on Hack's Canyon Uranium Mine, Mohave County, Arizona

This is a geological report on the uranium mine in Hack's Canyon, Mohave County, Arizona.
Date: September 1, 1948
Creator: Dunning, Charles H.
System: The UNT Digital Library
Uranium Oxide Slurry Pumping Experiments (open access)

Uranium Oxide Slurry Pumping Experiments

Abstract: Experiments on colloid milling and pumping show that uranium trioxide, when carefully dehydrated, can be dispersed in water to form a relatively stable slurry, suitable for a homogeneous slurry pile. At temperatures considerably below those of anticipated pile operation particle size growth occurs attended by increase in settling rate and decrease in viscosity. Theses properties of the slurries may be strongly affected by impurities present as well as by special operating conditions.
Date: September 15, 1944
Creator: Brandt, R. & Dean, G. R.
System: The UNT Digital Library
Analysis of Iron in Thorium, Beryllium, and Cerium (open access)

Analysis of Iron in Thorium, Beryllium, and Cerium

Introduction. the colorimetric determination of iron based on the formation of the colored ferrous-1,10-phenanthroline complex has been used successfully by a number of investigators. In this technical report, its adaptation to the routine determination of iron in cerium, thorium, and beryllium metals and their compounds is described.
Date: September 10, 1945
Creator: Ericson, R. P & Fornefeld, E. J.
System: The UNT Digital Library
Sweeping of Fission Gases from Solutions of U and Plutonium (open access)

Sweeping of Fission Gases from Solutions of U and Plutonium

Technical report describing two experiments performed to compare the amounts of fission gases swept out of UNH solution with those amounts swept out of PU solution under idential condiditons. The charge wire technique was used. The essential date and the results are given in tables in the report.
Date: September 4, 1945
Creator: Adams, R. M. & Finkelstein, H.
System: The UNT Digital Library
Procedures for the Separation of Products Resulting From Bombardment of Heavy Elements (open access)

Procedures for the Separation of Products Resulting From Bombardment of Heavy Elements

Technical report that attempts to bring together the various chemical procedures which proved most useful in studying the results of cyclotron bombardment or small scale neutron bombardments of heavy element targets. The report is limited to the elements of the "actinide", or second rare earth series, starting with thorium and including the newly discovered elements of atomic number 95 and 96. Every attempt is made to include all details necessary so this report can serve as a practical laboratory guide. The report covers separation problems, time factors, and dealing with dangerously radioactive targets.
Date: September 23, 1946
Creator: Thompson, Roy
System: The UNT Digital Library
Engineering Group Instrument Specification Report : Tests on Aquadag Treated Polyethylene Cable (open access)

Engineering Group Instrument Specification Report : Tests on Aquadag Treated Polyethylene Cable

Effect of aquadag coating on noise reduction in polyethylene coaxial cable was tested. A satisfactory combination of coaxial cables and connectors interconnecting sources of small ion currents or ionizing impulses with the measuring device is described.
Date: September 4, 1944
Creator: Weller, Barton L. & Dorsey, John M.
System: The UNT Digital Library
A Final Report on the Experiment : the Penetration of Graphite of Different Purities by Lead Bismuth Eutectic (open access)

A Final Report on the Experiment : the Penetration of Graphite of Different Purities by Lead Bismuth Eutectic

Bi-Pb eutectic and pure Bi penetration of graphites of various densities under 300 degrees C and pressures up to 20 psi was found be of the order of magnitude of 1.0 g/cm(2) and was uniform throughout the graphite. Bi was absorbed less than the eutectic but the oxidation rate of Bi would be prohibitive. There was heavy nitriding in N atmospheres with the Bi and the eutectic.
Date: September 25, 1944
Creator: Stroud, William G.
System: The UNT Digital Library
Model Study of Wave and Surge Action, Naval Operating Base, Terminal Island, San Pedro, California (open access)

Model Study of Wave and Surge Action, Naval Operating Base, Terminal Island, San Pedro, California

The study reported herein was conducted in 1944 at the Waterways Experiment Station for the Bureau of Yards and Docks, U. S. Navy Department. Its purpose was to determine the best of several plans proposed for protecting the piers and dry docks at the Naval Operating Base, Terminal Island, San Pedro, California, from the effects of wave and surge action.
Date: September 1947
Creator: Waterways Experiment Station (U.S.)
System: The UNT Digital Library
Report of the Thirty-Third National Conference on Weights and Measures, 1947 (open access)

Report of the Thirty-Third National Conference on Weights and Measures, 1947

Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: September 1948
Creator: United States. National Bureau of Standards.
System: The UNT Digital Library
Corrosivity of Uranyl Fluoride to Certain Metals (open access)

Corrosivity of Uranyl Fluoride to Certain Metals

Abstract: "The results obtained from the tests conducted for the purpose of determining the corrosivity of a 30 percent-solution of uranyl fluoride to various metals indicate that stainless steels (type 302, 304, 321 and 316) have very good resistance; while monel, nickel and aluminum, respectively, exhibit diminishing resistance. Stainless steel, type 316, was the most resistant of the specimen tested."
Date: September 19, 1946
Creator: Little, L. F. & Susano, C. D.
System: The UNT Digital Library
An analysis of the airspeeds and normal accelerations of Douglas DC-3 airplanes in commercial transport operation (open access)

An analysis of the airspeeds and normal accelerations of Douglas DC-3 airplanes in commercial transport operation

From Introduction: "The present report is the second prepared to give the results of an analysis of V-G data from commercial transport airplanes. The present report is concerned with an analysis of data obtained with Douglas DC-3 airplanes flying over three transcontinental routes in the United States."
Date: September 1946
Creator: Peiser, A. M.
System: The UNT Digital Library
An analysis of the airspeeds and normal accelerations of Martin M-130 airplanes in commercial transport operation (open access)

An analysis of the airspeeds and normal accelerations of Martin M-130 airplanes in commercial transport operation

From Introduction: "Acceleration and airspeed data obtained from V-G records collected during commercial transport operations (references 1 and 2) are being analyzed in some detail to determine the flight loads and operating speeds as functions of airplane, route, season, and prewar and wartime operations."
Date: September 1948
Creator: Walker, Walter G.
System: The UNT Digital Library
Air-Consumption Parameters for Automatic Mixture Control of Aircraft Engines (open access)

Air-Consumption Parameters for Automatic Mixture Control of Aircraft Engines

From Introduction: "The purpose of this analysis was to investigate the use of a function of intake-manifold pressure, exhaust back pressure, intake manifold temperature, and engine speed in place of a venturi as a means of measuring engine air consumption and to determine if this function is suitable for automatic mixture control."
Date: September 1, 1944
Creator: Shames, Sidney J.
System: The UNT Digital Library