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76
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22
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17
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11
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327
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120
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100
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Manual of the ICAO Standard Atmosphere Calculations by the NACA
Note presenting tables and figures of a standard atmosphere based on the Manual of the ICAO Standard Atmosphere. Detailed tables of pressures and densities are given for altitudes up to 20,000 meters and to 65,000 feet.
Date:
May 1954
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Synoptic Meteorology Manual of Standard Practices
This report, dated March 22, 1954 details work procedures for the 200- West Area at HAPO. Topics discussed include emergency procedures, safety and housekeeping practices, policies and procedures, instruments and equipment located at the 622 tower, instruments and equipment located offsite, observational procedures, form entries, and card punching, and weather forecasting.
Date:
March 22, 1954
Creator:
Jenne, D. E.
Object Type:
Report
System:
The UNT Digital Library
Operations sub-section: Separations section manual of standard practices bismuth phosphate extraction and concentration operations
None
Date:
June 1, 1954
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Standard Practices Counting Manual
The purpose of this manual is to present available data which can be used to determine disintegration rates of radioactive samples from counting rates measured under given circumstances with routinely used laboratory instruments. There is also brief discussion on the methods by which the various factors have been determined with reference to the accuracy with which they are known and to what extent the finally quoted disintegration rate is affected by these errors. Emphasis has been placed on those isotopes of particular interest to Radiological Sciences programs and the manual is intended as a standard through the use of which comparable values can be reported from all units in the Department.
Date:
January 4, 1954
Creator:
Schwendiman, L. C.
Object Type:
Report
System:
The UNT Digital Library
Application of several methods for determining transfer functions and frequency response of aircraft from flight data
In the process of analyzing the longitudinal frequency-response characteristics of aircraft, information on some of the methods of analysis has been obtained by the Langley Aeronautical Laboratory of the National Advisory Committee for Aeronautics. In the investigation of these methods, the practical applications and limitations were stressed. In general, the methods considered may be classed as: (1) analysis of sinusoidal response, (2) analysis of transient response as to harmonic content through determination of the Fourier integral by manual or machine methods, and (3) analysis of the transient through the use of least-squares solutions of the coefficients of an assumed equation for either the transient time response or frequency response (sometimes referred to as curve-fitting methods). (author).
Date:
1954
Creator:
Eggleston, John M. & Mathews, Charles W.
Object Type:
Report
System:
The UNT Digital Library
Determination of Viscosity of Exhaust-Gas Mixtures at Elevated Temperatures
Note presenting the viscosities of five samples of dry-exhaust-gas mixtures at approximately atmospheric pressure and at temperatures from 0 to 1100 degrees Celsius. A method of analysis and correlation proposed by Sutherland has been applied to the data and equations were derived therefrom for representing the results.
Date:
June 1954
Creator:
Westmoreland, J. C.
Object Type:
Report
System:
The UNT Digital Library
Use of a Hot-Wire Anemometer in Shock-Tube Investigations
Note presenting the use of the hot-wire anemometer as an instrument for experimental investigations of the transient flow phenomena in a shock tube. The response of a hot-wire to a transient step-function type of change in flow conditions is studied and a criterion for predicting the right compensation is theorized and experimentally verified.
Date:
December 1954
Creator:
Dosanjh, Darshan Singh
Object Type:
Report
System:
The UNT Digital Library
Ion Tracer Technique for Airspeed Measurement at Low Densities
Note presenting a study of the aerodynamic and production-detection problems associated with ion tracer velocity measurement techniques, with particular emphasis on those aspects unique to low-density gas dynamics. A critical survey was made of the various techniques which have been employed and specific suggestions are offered relative to the successful use of ion tracer velocity measuring methods at low densities.
Date:
March 1954
Creator:
Kunkel, W. B. & Talbot, L.
Object Type:
Report
System:
The UNT Digital Library
A Procedure for the Design of Air-Heated Ice-Prevention Systems
A procedure proposed for use in the design of air-heated systems for the continuous prevention of ice formation on airplane components is set forth. Required heat-transfer and air-pressure-loss equations are presented, and methods of selecting appropriate meteorological conditions for flight over specified geographical areas and for the calculation of water-drop-impingement characteristics are suggested. In order to facilitate the design, a simple electrical analogue was devised which solves the complex heat-transfer relationships existing in the thermal-system analysis.
Date:
June 1954
Creator:
Neel, Carr B.
Object Type:
Report
System:
The UNT Digital Library
Petrographical Investigations of the Salt Wash Sediments, Annual Technical Report: 1954
Abstract: This report consists of four parts, the first three being descriptions of investigations compiled in the period October 1st, 1953 to April 1st, 1954; the fourth part is a summary of progress of the research based on our entire investigations completed prior to April 1st, 1954. The first part comprises a set of preliminary experiments investigating the mineral composition of the sandstones in thin sections, in an attempt to differentiate barren from ore-bearing sandstones. It appears that there are more rock-fragments and particularly more volcanic rock fragments in the ore zone (zone 4, Well C, Bull Canyon). In addition, silica cement appears to be associated with ore and carbonate cement with barren sediments. The second part details the investigation of the mudstones of the Bull Canyon Wells . A mixed layer lattice "illite" and a kaolin mineral are the most prominent in "normal" mudstones. Dye tests suggest there are differences between the clay minerals in the sandstone matrix of the ore zone and barren zone. In addition, the mudstone zones appear to differ in the response to the dye tests. The third part of the report details the bulk density determinations for cores from well B. The results confirm …
Date:
April 1954
Creator:
Griffiths, John C.; Cochran, J. A.; Groff, D. W. & Kahn, James Steven
Object Type:
Report
System:
The UNT Digital Library
A Photographic Method for Determining Vertical Velocities of Aircraft Immediately Prior to Landing
"A photographic method employing a long-focal-length (40-inch) lens for obtaining statistical data on vertical velocities of aircraft immediately prior to landing contact developed for use with land-based airplanes is described. It requires no instrument installation on the aircraft or interference with airport operation and employs relatively simple data reduction. Vertical velocities can be obtained by this method within a probable maximum error of 0.31 fps" (p. 1).
Date:
January 1954
Creator:
Rind, Emanuel
Object Type:
Report
System:
The UNT Digital Library
Description and preliminary flight investigation of an instrument for detecting subnormal acceleration during take-off
Report presenting an evaluation of a prototype instrument designed to give an immediate indication of loss in airplane acceleration due to power deficiency or increased resistance at any time during take-off when the pilot has a choice of continuing or stopping. Proper functioning of the instrument requires that the attitude angle of the airplane should not vary substantially during the part of take-off of interest. The instrument was tested in three types of airplanes and was found to be satisfactory.
Date:
November 1954
Creator:
Morris, Garland J. & Lina, Lindsay J.
Object Type:
Report
System:
The UNT Digital Library
The near noise field of static jets and some model studies of devices for noise reduction
An experimental study is presented of the pressure fluctuations near jet exhaust streams made during unchoked operation of a turbojet engine and a 1-inch-diameter high-temperature model jet and during choked operation of various sizes of model jets with unheated air. The tests for unchoked operation indicate a random spectrum of rather narrow band width which varies in frequency content with axial position along the jet. Pressure surveys from the model tests along lines parallel to the 15 degree jet boundary indicate that the station of greatest pressure fluctuations is determined by the jet velocity and the radial distance, with a tendency of the maximum to shift downstream as either parameter is increased.
Date:
February 19, 1954
Creator:
Lassiter, Leslie W. & Hubbard, Harvey H.
Object Type:
Report
System:
The UNT Digital Library
An analytical and experimental study of the transient response of a pressure-regulating relief valve in a hydraulic circuit
From Introduction: "This report presents an analysis of the response of the relief valve to sudden flow-demand changes. The analysis can be applied to the design of relief valves to satisfy given response specifications and to predict the stability of the valve in a specific hydraulic circuit. For this reason, derivatives of all the constants employed are included in the report."
Date:
March 1954
Creator:
Gold, Harold & Otto, Edward W.
Object Type:
Report
System:
The UNT Digital Library
Theoretical analysis of an airplane acceleration restrictor controlled by normal acceleration, pitching acceleration, and pitching velocity
Report presenting an analog computer analysis of an acceleration restrictor which limits the elevator motion of an airplane. The device applies a mechanical brake to the elevator control system in response to signals. Results for a restrictor sensitive to combined signal of normal and pitching acceleration and a restrictor sensitive to normal and pitching acceleration and pitching velocity are provided.
Date:
September 1954
Creator:
Kraft, Christopher C., Jr.
Object Type:
Report
System:
The UNT Digital Library
A Survey of the Graduates of Technical High School, Fort Worth, Texas, from 1942-1952 to Determine the Effectiveness of the Training Program
The purpose of this study was to make a survey of the graduates of Technical High School of Fort Worth, Texas, for a period of ten years, from 1942 to 1952, to determine the effectiveness of the preparation they received in helping the graduates to choose a vocation and acquire the basic skills and attitudes that helped them in obtaining a position and to continue as successful workers.
Date:
August 1954
Creator:
McAbee, Robert M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Counting Room Equipment and Procedures and Sample Preparation
The following are some of the equipment currently used in the Health Physics counting rooms at the Laboratory: scintillation counters, end window beta-gamma counters, precipitcon beta-gamma counter, autoscaler beta-gamma counter, and continuous flow proportional counter. This technical report describes the equipment, supporting equipment, procedures, and sample preparation in use at the Laboratory.
Date:
May 1954
Creator:
Weiss, M. M. & Marshall, J. B.
Object Type:
Report
System:
The UNT Digital Library
Structural Response to Discrete and Continuous Gusts of an Airplane Having Wing Bending Flexibility and a Correlation of Calculated and Flight Results
"An analysis is made of the structural response to gusts of an airplane having the degrees of freedom of vertical motion and wing bending flexibility and basic parameters are established. A convenient and accurate numerical solution of the response equations is developed for the case of discrete-gust encounter, an exact solution is made for the simpler case of continuous-sinusoidal-gust encounter, and the procedure is outlined for treating the more realistic condition of continuous random atmospheric turbulence, based on the methods of generalized harmonic analysis. Correlation studies between flight and calculated results are then given to evaluate the influence of wing bending flexibility on the structural response to gusts of two twin-engine transports and one four-engine bomber" (p. 1).
Date:
March 4, 1954
Creator:
Houbolt, John C. & Kordes, Eldon E.
Object Type:
Report
System:
The UNT Digital Library
Dynamic stability and control characteristics of a cascade-wing vertically rising airplane model in take-offs, landings, and hovering flight
Report presenting an investigation to determine the dynamic stability and control characteristics of a cascade-wing vertically rising airplane in the take-off, landing, and hovering phases of flight. It had four propellers with thrust axes parallel to the fuselage axis and distributed along the span so the wings were completely immersed in the stream. Results regarding hovering flight at altitude, hovering flight near the ground, and take-offs and landings are provided.
Date:
June 1954
Creator:
McKinney, Marion O.; Tosti, Louis P. & Davenport, Edwin E.
Object Type:
Report
System:
The UNT Digital Library
A revised gust-load formula and a re-evaluation of v-g data taken on civil transport airplanes from 1933 to 1950
From Summary: "A revised gust-load formula with a new gust factor is derived to replace the gust-load formula and alleviation factor widely used in gust studies. The revised formula utilizes the same principles and retains the same simple form of the original formula but provides a more appropriate and acceptable basis for gust-load calculations. The gust factor is calculated on the basis of a one-minus-cosine gust shape and is presented as a function of a mass-ratio parameter in contrast to the ramp gust shape and wing loading, respectively, used for the alleviation factor. A summary of gust-velocity data from v-g records taken on civil transport airplanes from 1933 to 1950, reevaluated by the revised formula, is also presented."
Date:
1954
Creator:
Pratt, Kermit G. & Walker, Walter G.
Object Type:
Report
System:
The UNT Digital Library
Hot semiworks Redox studies
The separations Hot Semiworks at the Hanford Atomic Products Operation was built in order to: (1) develop optimum conditions for the economic operation of the Redox and TBP plants, (2) procure engineering design data which would allow the specification of process equipment required for new processes such as Purex, (3) provide facilities for the study of future process and engineering problems on a semiworks scale employing radioactive process solutions, and (4) provide facilities for immediate trouble shooting for urgent separations plant problems. The initial operation of this facility was designed to develop conditions for the economic operation of the Redox Plant. These studies, covering a period from November, 1952 to October, 1953, are described in this report. The Redox process is used at Hanford for the separation of uranium and plutonium from fission products and from each other. The basis of the process is the preferential extraction of uranium and plutonium nitrates from an aqueous phase of high salting strength into an organic solvent (methyl isobutyl ketone) to effect the separation from fission products. This operation is conducted continuously in columns, packed with Raschig rings, through which the phases are passed counter-currently. Uranium and plutonium are separated by converting the …
Date:
January 27, 1954
Creator:
Evans, T. F. & Tomlinson, R. E.
Object Type:
Report
System:
The UNT Digital Library
An Introduction to the Purex Plant
The intent of this manual is to present a description of the main process building, equipment, and auxiliary facilities as well as a process summary. Material is of a scope nature with more detail devoted to features unlike those of existing separations systems. An attempt is made to convey some of the basic design philosophy and the problems encountered in the development of design criteria. This information is written primarily for Separations Section supervision who have not had an opportunity to become conversant with the Purex Project. The manual may also be of assistance in orientation and training of personnel. In order to avoid repetition and duplication of effort, one line service diagrams, equipment sketches, tables, and detailed data are not a part of this manual.
Date:
July 15, 1954
Creator:
Courtney, J. J. & Clark, B. E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Forecasting Trafficability of Soils, Report Number 3, The Development of Methods for Predicting Soil Moisture Content: Volume 2, Prediction Sites at Vicksburg Mississippi
Preface: The study was initiated in early 1951 to develop methods of predicting the moisture content of several soils in the vicinity of Vicksburg, Mississippi.
Date:
October 1954
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Reactor Section standard analytical methods. Part 1
the Standard Analytical Methods manual was prepared for the purpose of consolidating and standardizing all current analytical methods and procedures used in the Reactor Section for routine chemical analyses. All procedures are established in accordance with accepted practice and the general analytical methods specified by the Engineering Department. These procedures are specifically adapted to the requirements of the water treatment process and related operations. The methods included in this manual are organized alphabetically within the following five sections which correspond to the various phases of the analytical control program in which these analyses are to be used: water analyses, essential material analyses, cotton plug analyses boiler water analyses, and miscellaneous control analyses.
Date:
July 1, 1954
Creator:
Sowden, D.
Object Type:
Report
System:
The UNT Digital Library