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485
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266
NACA Technical Notes
259
United States Geological Survey Reports
221
Trace elements investigations report
109
Hanford Works Reports
55
NACA Technical Reports
54
HW (Series)
53
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50
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Achievement of Continuous Wall Curvature in Design of Two-Dimensional Symmetrical Supersonic Nozzles
"Auxiliary boundary conditions are derived to assure continuity of wall curvature in applying the method of characteristics to the design of two-dimensional symmetrical supersonic nozzles. An illustrative example is included" (p. 1).
Date:
January 1952
Creator:
Evvard, J. C. & Marcus, Lawrence R.
Object Type:
Report
System:
The UNT Digital Library
Airfoil profiles for minimum pressure drag at supersonic velocities -- general analysis with application to linearized supersonic flow
From Summary: "A theoretical investigation is made of the airfoil profile for minimum pressure drag at zero lift in supersonic flow. In the first part of the report a general method is developed for calculating the profile having the least pressure drag for a given auxiliary condition, such as a given structural requirement or a given thickness ratio. To illustrate the general method, the optimum airfoil, defined as the airfoil having minimum pressure drag for a given auxiliary condition, is calculated in a second part of the report using the equations of linearized supersonic flow."
Date:
1952
Creator:
Chapman, Dean R.
Object Type:
Report
System:
The UNT Digital Library
American Standard Safety Code for Installing and Using Electrical Equipment in and About Coal Mines (M2.1)
Report discussing steps required when using, installing, inspection of electrical equipment in coal mines in order in order to minimize hazards.
Date:
1952
Creator:
United States. Bureau of Mines.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Foreign Coals
Report summarizing analyses through tables and maps of foreign coals.
Date:
1952
Creator:
Morgan, R. E. & Barkley, J. F.
Object Type:
Report
System:
The UNT Digital Library
Analyses of Ohio Coals
Report discussing an analyses of the data for Ohio coals, which the Bureau of Mines providing an analysis of every coal-mining State.
Date:
1952
Creator:
Fieldner, A. C.; Taylor, Dorothy Ann; Toenges, Albert L.; Crentz, William L.; Fraser, Thomas; Young, W. H. et al.
Object Type:
Report
System:
The UNT Digital Library
An anticoincidence gamma ray scintillation spectrometer
From abstract: "A new type of scintillation spectrometer is described. It is designed to suppress signals arising from incident photons that are not completely absorbed in the primary detecting NaI(T1) crystal."
Date:
1952
Creator:
Albert, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Application of Plastic Bags and Sheeting for Operation and Maintenance Across a Contamination Barrier
The following document describes the usage of Vinylite or plastic sheeting for operation and maintenance across a contamination barrier, presenting ecological advantages, photos of special equipment and techniques used during procedure, and the purpose of eliminating open air transfer in contaminated area.
Date:
1952
Creator:
Moulthrop, H. A.
Object Type:
Report
System:
The UNT Digital Library
An Approximate Method of Calculating the Deformations of Wings Having Swept, M or W, A, and Swept-Tip Plan Forms
"An approximate method of calculating the deformations of wings of uniform thickness having swept, M or W, Delta, and swept-tip plan forms is presented. The method employs an adjustment to the elementary beam theory to account for the effect of the triangular root portion of a swept wing on the deformation of the outboard section of the wing. To demonstrate the general applicability of the method, the modified elementary theory is applied to the more complex M or W, Delta, and swept-tip plan forms as well as to swept plan forms" (p. 1).
Date:
1952
Creator:
Zender, George W. & Brooks, William A., Jr.
Object Type:
Report
System:
The UNT Digital Library
The Area Survey Manual of Brookhaven National Laboratory: Area Radiation Detection Instrumentation, Maintenance, and Results
Report issued by the Brookhaven National Laboratory discussing the instrumentation, operation, and maintenance of the established area radiation monitoring stations. This report includes maps, tables, illustrations, and photographs.
Date:
January 1, 1952
Creator:
Weiss, Max M.
Object Type:
Report
System:
The UNT Digital Library
An Automatic Titrator Using Electrolytically Generated Titrants
The following document provides diagrams of wiring circuits and maps of potential curves of the indicator systems.
Date:
1952
Creator:
Carson, W. N.
Object Type:
Report
System:
The UNT Digital Library
Axisymmetric Supersonic Flow in Rotating Impellers
"General equations are developed for isentropic, frictionless, axisymmetric flow in rotating impellers with blade thickness taken into account and with blade forces eliminated in favor of the blade-surface function. It is shown that the total energy of the gas relative to the rotating coordinate system is dependent on the stream function only, and that if the flow upstream of the impeller is vortex-free, a velocity potential exists which is a function of only the radial and axial distances in the impeller. The characteristic equations for supersonic flow are developed and used to investigate flows in several configurations in order to ascertain the effect of variations of the boundary conditions on the internal flow and the work input" (p. 1).
Date:
1952
Creator:
Goldstein, Arthur W.
Object Type:
Report
System:
The UNT Digital Library
Barrier Pillars in Lackawanna Basin, Northern Field: Anthracite Region of Pennsylvania
From Introduction: "The purpose of this report is to furnish data on the barrier pillars that enter into the water problem of the Lackawanna Basin; this will be helpful in solving the anthracite-mine-water problem of the Northern field."
Date:
1952
Creator:
Ash, S. H. (Simon Harry), b. 1889; Davies, B. S.; Jenkins, H. E. & Romischer, W. M.
Object Type:
Report
System:
The UNT Digital Library
Behavior of vortex system behind cruciform wings - motions of fully rolled-up vortices
An investigation and analysis of the motions of four fully rolled-up vortices representing the vortex system trailing behind cruciform wings by theoretical and visual-flow methods. Equations are developed for the three-dimensional paths traced by the vortices behind a cruciform wing banked 45 degrees, and calculations are made of the distance behind the wing at which the upper two vortices pass through the lower two.
Date:
January 1952
Creator:
Sacks, Alvin H.
Object Type:
Report
System:
The UNT Digital Library
Beryllium Minerals in the Victorio Mountains, Luna County, New Mexico
Report discussing beryllium deposits in the form of beryl, helvite, and beryllian idocrase in a small area of the Victorio Mountains of Luna County, New Mexico.
Date:
January 1952
Creator:
Holser, William T.
Object Type:
Report
System:
The UNT Digital Library
Bibliography of Pressure Hydrogenation (In Three Parts): [Part] 3. Subject Index; Numerical Patent Index
Report displaying a bibliography of pressure hydrogenation with a subject index and numerical patent index.
Date:
1952
Creator:
Wiley, J. L. & Anderson, H. C.
Object Type:
Report
System:
The UNT Digital Library
Boral : A New Thermal Neutron Shield, Supplement I
The following report provides information on the making of large sheets of boral, an engineering material for the absorption of thermal neutrons, as well as physical properties and recommendations on casting and rolling ingots into sheets.
Date:
1952
Creator:
Kitzes, A. S. & Hullings, W. Q.
Object Type:
Report
System:
The UNT Digital Library
Buckling of rectangular sandwich plates subjected to edgewise compression with loaded edges simply supported and unloaded edges clamped
Report presenting the compressive stress for buckling for a rectangular flat sandwich plate with loaded edges simply supported and unloaded edges rigidly clamped. The true values of the buckling stress are estimated as the arithmetic means of these bounds and are presented in a diagram which covers the entire practical range of the geometric and mechanical quantities involved.
Date:
January 1952
Creator:
Yen, Kuo Tai; Salerno, V. L. & Hoff, N. J.
Object Type:
Report
System:
The UNT Digital Library
The Calculated and Measured Performance Characteristics of a Heated-Wire Liquid-Water-Content Meter for Measuring Icing Severity
"Ground tests have been made of an instrument which, when assembled in a more compact form for flight installation, could be used to obtain statistical flight data on the liquid-water content of icing clouds and to provide an indication of icing severity. The sensing element of the instrument consists of an electrically heated wire which is mounted in the air stream. The degree of cooling of the wire resulting from evaporation of the impinging water droplets is a measure of the liquid-water content of the cloud" (p. 1).
Date:
January 1952
Creator:
Neel, Carr B. & Steinmetz, Charles P.
Object Type:
Report
System:
The UNT Digital Library
Calculation of aerodynamic forces on a propeller in pitch or yaw
An analysis was made to determine the applicability of existing propeller theory and the theory of oscillating airfoils to the problem of determining the magnitude of the forces on propellers in pitch or yaw. Strip calculations using compressible airfoil characteristics were first made as though steady-state conditions existed successively at several blade positions of the propeller blades during one revolution. A theory of oscillating airfoils in pulsating incompressible potential flow was then considered from which it was possible to determine factors which would modify the steady-state forces.
Date:
January 1952
Creator:
Crigler, John L. & Gilman, Jean, Jr.
Object Type:
Report
System:
The UNT Digital Library
Calculations on the forces and moments for an oscillating wing-aileron combination in two-dimensional potential flow at sonic speed
Report presenting the use of linearized theory for compressible unsteady flow to obtain the velocity potential and lift and moment for a thin, harmonically oscillating, two-dimensional wing-aileron combination moving at sonic speed.
Date:
January 1952
Creator:
Nelson, Herbert C. & Berman, Julian H.
Object Type:
Report
System:
The UNT Digital Library
Carbonizing Properties: British Columbia, Matanuska Valley (Alaska), and Washington Coals and Blends of Six of Them with Lower Sunnyside (Utah) Coals
From Introduction and Summary: "This report gives results of an investigation of the carbonizing properties of 18 coals, including 2 from Alaska, 12 from British Columbia, 3 from Washington, and 1 from Utah. Each coal was carbonized in the standard 13-inch Bureau of Mines-American Gas Association (BM-AGA) retort at 900 degrees C."
Date:
1952
Creator:
Davis, J. D.; Reynolds, D. A.; Brewer, R. E.; Naugle, B. W.; Wolfson, D. E.; Gibson, F. H. et al.
Object Type:
Report
System:
The UNT Digital Library
Carbonizing Properties: Eastern Kentucky Coals from Elkhorn Number 1, Elkhorn Number 2, Leatherwood, and Harlan Beds
From Introduction and Summary: "This report gives results of an investigation of the carbonizing properties of the following eastern Kentucky coals: Elkhorn No.1 bed, No. 28 mine, Wayland, Floyd County; Elkhorn No.2 bed, Turner No.5 mine, Drift, Floyd County; Leatherwood (Haddix No.5) bed, Leatherwood mine, Leatherwood, Perry County; and Harlan bed, Path Fork mine, Path Fork, Harlan County."
Date:
1952
Creator:
Davis, J. D.; Reynolds, D. A.; Brewer, R. E.; Wolfson, D. E.; Naugle, B. W.; Frederic, W. H. et al.
Object Type:
Report
System:
The UNT Digital Library
Carbonizing Properties: West Virginia Coals from the Pittsburgh Bed Jamison Number 9 Mine, Marion County, and Upper Freeport Bed Bull Run Number 1 Mine, Preston County
From Introduction and Summary: "This report gives results of investigation of the carbonizing properties of coals from Pittsburgh bed, Jamison No. 9 mine, Marion County, W. Va., and from Upper Free-port bed, Bull Run No.1 mine, Preston County, W. Va.
Date:
1952
Creator:
Davis, J. D.; Reynolds, D. A.; Brewer, R. A.; Wolfson, D. E.; Naugle, B. W. & Birge, G. W.
Object Type:
Report
System:
The UNT Digital Library
Castleman Basin, Garrett County, Maryland
Report published by the U.S. Bureau of Mines containing the results of a survey to determine the status of the coal beds in Maryland. The report discusses the characteristics of the coal in the area as well as mining practices and geologic overview.
Date:
1952
Creator:
Toenges, Albert L.; Williams, Lloyd; Turnbull, Louis A.; Parks, B. C.; O'Donnell, H. J.; Abernethy, Roy F. et al.
Object Type:
Report
System:
The UNT Digital Library