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Injury Experience in Coal Mining, 1951: Analysis of Mine Safety Factors, Related Employment, and Production Data

Description: From Introduction and Summary: "The Injury Data and experience at coal mines in the United States for 1951 are presented in this bulletin under the following general heads: (A) General injury experience: (B) Selected injury data (C) Injury experience by States: (D) Major disasters: (E) Historical coal-mine injury experience:"
Date: 1956
Creator: Reese, Seth T.; Wrenn, Virginia E. & Reid, Elizabeth J.
Item Type: Refine your search to only Report
open access

Flood Prevention in Anthracite Mines: Anthracite Region of Pennsylvania, Projects Numbers 4 and 5

Description: From Scope of Reports: "This report covers the following: (a) A brief description of the work proposed under Projects Nos. 4 and 5; (b) the topography, geology and hydrology of the area into which the sections of the proposed tunnel are to be driven; (c) plans, costs, and construction schedules of the projects; and (d) conclusions and recommendations."
Date: 1956
Creator: Ash, S. H. (Simon Harry), b. 1889; Dierks, H. A. & Kennedy, D. O.
Item Type: Refine your search to only Report
open access

Injury Experience in the Quarry Industry, 1953: Detailed Analysis of Safety Factors and Related Employment Data

Description: From Introduction and Summary: "This bulletin, covering the calendar year 1953, is the 34th publication containing statistical data on injuries at quarries and related plants in the United States. The last similar publication was Bulletin 554, Injury Experience in the Quarry Industry, 1952."
Date: 1956
Creator: Reese, Seth T. & Kearney, Naomi W.
Item Type: Refine your search to only Report
open access

Progress Report on AEC Contract on Research and Development Program on Scintillation Crystals: Period 1 January 1956 to 1 April 1956

Description: From Abstract: "This report covers the preliminary literature survey and the screening of activated cesium iodide and several alkali halides to qualitatively determine their luminerscence. The report also includes a proposal of the future work and a proposed budget for the 1957 fiscal year."
Date: April 25, 1956
Creator: Beadle, Robert
Item Type: Refine your search to only Report
open access

Design, Construction, Field Testing, and Cost Analysis of An Experimental Electrodialysis Demineralizer for Brackish Waters

Description: Rpeort describing the electrodialysis process as a possible practical means for demineralizing saline waters. The tests described in the report are used to determine the effects of operating the process under field conditions, to provide estimates of the cost of demineralizing brackish waters on a large scale, and as a means of planning further needed research in this field.
Date: December 1956
Creator: Dankese, J. P.; Kirkham, T. A.; Maheras, G.; Mintz, M. S.; Powell, J. H.; Rosenberg, N. W. et al.
Item Type: Refine your search to only Report
open access

Turbine Failure Investigation of J65-W-4 Turbojet Engine in an Altitude Test Chamber

Description: Memorandum presenting an altitude investigation to determine the basic mechanism by which J65-W-4 turbine rotor-blade failures were occurring in service. The engine was installed in an altitude test chamber and a series of controlled engine throttle bursts, with and without inlet-air distortion, over a range of altitudes, flight Mach numbers, and inlet-air temperatures. An examination of the data obtained during the investigation indicated that the danger of turbine failure could be eliminated … more
Date: September 21, 1956
Creator: McAulay, John E.; Braithwaite, Willis M. & Ciepluch, Carl C.
Item Type: Refine your search to only Report
open access

Analysis of turbojet and ram-jet engine cycles using various fuels

Description: From Introduction: "These data have been collected for presentation in this report to illustrate the performance of turbojet and ram-jet cycles utilizing several of the more promising high-energy fuels. Results are presented in terms of engine over-all efficiency and thrust per pound of airflow as functions of flight Mach number."
Date: November 27, 1956
Creator: Wilcox, E. Clinton; Weber, Richard J. & Tower, Leonard K.
Item Type: Refine your search to only Report
open access

Full-Scale Evaluation of Some Flameholder Design Concepts for High-Inlet-Velocity Afterburners

Description: Memorandum presenting an investigation of a full-scale afterburner with high burner-inlet velocity conducted to determine burner performance with several variations in burner design. Variables receiving particular attention were flameholder design and burner length. Results regarding diffuser performance, performance of the reference two-V-gutter flameholder, designs to improve combustion for high-velocity conditions, and operational characteristics are provided.
Date: June 28, 1956
Creator: Prince, William R.; Velie, Wallace W. & Braithwaite, Willis M.
Item Type: Refine your search to only Report
open access

Wing-Body Combinations With Wings of Very Low Aspect Ratio at Supersonic Speeds

Description: Memorandum presenting force and moment characteristics of configurations employing wings of very low aspect ratio as determined for Mach numbers of 1.97 and 3.33. The angle of attack range was from 0 to 17 degrees for Mach number 1.97 and from 0 to 30 degrees for Mach number 3.33. Results regarding experimental force and moment characteristics, comparisons of theoretical and experimental force and moment characteristics, and visual observations of flow over models are provided.
Date: October 26, 1956
Creator: Jorgensen, Leland H. & Katzen, Elliott D.
Item Type: Refine your search to only Report
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