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The Lagrangian Multiplier Method of Finding Upper and Lower Limits to Critical Stresses of Clamped Plates (open access)

The Lagrangian Multiplier Method of Finding Upper and Lower Limits to Critical Stresses of Clamped Plates

"The theory of Lagrangian multipliers is applied to the problem of finding both upper and lower limits to the true compressive buckling stress of a clamped rectangular plate. The upper and lower limits thus bracket the truss, which cannot be exactly found by the differential-equation approach. The procedure for obtaining the upper limit, which is believed to be new, presents certain advantages over the classical Raleigh-Rite method of finding upper limits" (p. 1).
Date: 1946
Creator: Budiansky, Bernard & Hu, Pai C.
Object Type: Report
System: The UNT Digital Library
Single-Cylinder Oil-Control Tests of Porous Chrome Plated Cylinder Barrels for Radial Air-Cooled Engines (open access)

Single-Cylinder Oil-Control Tests of Porous Chrome Plated Cylinder Barrels for Radial Air-Cooled Engines

Report presenting a series of single-cylinder engine tests run to determine a satisfactory method of reducing oil consumption in radial air-cooled engines with flat-face compression rings as standard parts and equipped with cylinder barrels salvaged by porous chrome plating. Testing was conducted using porous chrome-plated cylinders with straight and choke bores with standard flat-face compression rings.
Date: January 1946
Creator: Johnson, Robert L. & Swikert, Max
Object Type: Report
System: The UNT Digital Library
Inspections and preventive maintenance services for coal-handling equipment. (open access)

Inspections and preventive maintenance services for coal-handling equipment.

"This technical manual is a guide for personnel who operate and maintain coal conveyors, stackers, car unloaders, and coal crushers." Discusses maintenance procedures, forms, and required inspections.
Date: February 1946
Creator: United States. War Department.
Object Type: Book
System: The UNT Digital Library
Lesson plans on practical firemanship. (open access)

Lesson plans on practical firemanship.

"This Technical Manual is a guide to assist those who train post firefighters. It consists of a series of lesson plans covering each phase of firemanship, and a brief explanation of how to use the plans."
Date: April 1946
Creator: United States. War Department.
Object Type: Book
System: The UNT Digital Library
Space heaters : repairs and utilities. (open access)

Space heaters : repairs and utilities.

"This Technical Manual provides information on construction, installation, operation, and maintenance of Army space heaters used in the zone of interior."
Date: June 1946
Creator: United States. War Department.
Object Type: Book
System: The UNT Digital Library
Inspections and preventive maintenance services for buildings and structures, grounds, roads and pavements, railroads (open access)

Inspections and preventive maintenance services for buildings and structures, grounds, roads and pavements, railroads

"This Technical Manual provides information to help the post engineer formulate and carry out a preventative maintenance program for buildings, structures, roads, runways, railroads, grounds, pest control, and related phases of real property maintenance."
Date: September 1946
Creator: United States. War Department.
Object Type: Book
System: The UNT Digital Library
Concrete and masonry : repairs and utilities. (open access)

Concrete and masonry : repairs and utilities.

"This Technical Manual describes materials, equipment, and methods used in new concrete and masonry work at Army posts. It also covers repair and maintenance of existing concrete and masonry."
Date: October 1946
Creator: United States. War Department.
Object Type: Book
System: The UNT Digital Library
Ranges, Bake Ovens and Burners for Other Mess Equipment: Inspections and Preventive Maintenance Services (open access)

Ranges, Bake Ovens and Burners for Other Mess Equipment: Inspections and Preventive Maintenance Services

"This technical manual describes operation, first and second echelon inspections and preventative maintenance services, and technical inspections of ranges, bake ovens, and burners for mess equipment."
Date: January 1946
Creator: United States. War Department.
Object Type: Book
System: The UNT Digital Library
Report on the Investigation of the Fire at the Liquefaction, Storage, and Regasification Plant of the East Ohio Gas Co., Cleveland Ohio, October 20, 1944 (open access)

Report on the Investigation of the Fire at the Liquefaction, Storage, and Regasification Plant of the East Ohio Gas Co., Cleveland Ohio, October 20, 1944

Report issued by the Bureau of Mines over investigations conducted on the 1944 fire at the East Ohio Gas Company. Descriptions of the plant, and construction of the gas tanks are listed. A detailed description of the disaster, and its aftermath are also presented. This report includes tables, maps, illustrations, and photographs.
Date: February 1946
Creator: Elliott, M. A.; Seibel, C. W.; Brown, F. W.; Artz, R. T. & Berger, L. B.
Object Type: Report
System: The UNT Digital Library
Secondary-Recovery Practices and Oil Reserves in the Eastern Part of the Delaware-Childers Field, Nowata County, Oklahoma (open access)

Secondary-Recovery Practices and Oil Reserves in the Eastern Part of the Delaware-Childers Field, Nowata County, Oklahoma

Report issued by the U.S. Bureau of Mines on the oil recovery methods used in Nowata County, Oklahoma. Methods include vacuum use, and air-injection. This report includes tables, graphs, maps, and illustrations.
Date: December 1946
Creator: Johnston, Kenneth H. & Riggs, C. H.
Object Type: Report
System: The UNT Digital Library
Mining and Concentration of Missouri Valley Manganese at Chamberlain, South Dakota (open access)

Mining and Concentration of Missouri Valley Manganese at Chamberlain, South Dakota

Report issued by the U.S. Bureau of Mines regarding the concentration of manganese ore along the Missouri River valley. The report contains maps, tables, graphs, photographs, and illustrations.
Date: February 1946
Creator: Dupuy, Leon W.; Calhoun, W. A. & Rasmussen, R. T. C.
Object Type: Report
System: The UNT Digital Library
Exploration of Stiner and Bunch Hollow Zinc Properties, Powell River Area, Union and Claiborne Counties, Tennessee (open access)

Exploration of Stiner and Bunch Hollow Zinc Properties, Powell River Area, Union and Claiborne Counties, Tennessee

Report issued by the U.S. Bureau of Mines on the exploration of zinc ore deposits surrounding the Powell River area in Tennessee. Drilling methods and ore concentrates are presented. This report includes tables, and maps.
Date: April 1946
Creator: Sayrs, Richard L.
Object Type: Report
System: The UNT Digital Library
Flood-Prevention Projects at Pennsylvania Anthracite Mines: A Preliminary Study (open access)

Flood-Prevention Projects at Pennsylvania Anthracite Mines: A Preliminary Study

Report issued by the Bureau of Mines over flood-prevention methods at Pennsylvania anthracite mines. The flood-prevention projects are discussed. This report includes tables, maps, photographs, and illustrations.
Date: March 1946
Creator: Ash, S. H. & Westfield, James
Object Type: Report
System: The UNT Digital Library
Survey of Tin in California (open access)

Survey of Tin in California

Report issued by the U.S. Bureau of Mines on a survey of tin deposits in California. A focus on tin deposits in Kern and San Bernardino Counties are presented. The report includes two maps.
Date: April 1946
Creator: Bedford, Robert H. & Johnson, F. T.
Object Type: Report
System: The UNT Digital Library
National Motor-Gasoline Survey: Summer 1945 (open access)

National Motor-Gasoline Survey: Summer 1945

Report issued by the U.S. Bureau of Mines on the motor fuels sold in the summer of 1945. Analysis of the properties of fuel samples collected is presented. This report includes tables, graphs, and a map.
Date: January 1946
Creator: Blade, O. C.
Object Type: Report
System: The UNT Digital Library
Exploration of Red Mountain Chromite Deposits, Kenai Peninsula, Alaska (open access)

Exploration of Red Mountain Chromite Deposits, Kenai Peninsula, Alaska

Report issued by the U.S. Bureau of Mines investigating the chromite deposits of Red Mountain on Kenai Peninsula, Alaska. Research methods include surface sampling and core drilling. The report includes tables, maps, and illustrations.
Date: April 1946
Creator: Rutledge, Franklin A.
Object Type: Report
System: The UNT Digital Library
Exploration of the Avon Mica District, Latah County, Idaho (open access)

Exploration of the Avon Mica District, Latah County, Idaho

Report issued by the U.S. Bureau of Mines on the investigations conducted on the mica deposits found in Latah County, Idaho. Characteristics and properties of the mica deposits are listed. This report includes tables, and maps.
Date: July 1946
Creator: Reed, Glen C.
Object Type: Report
System: The UNT Digital Library
Exploration of the Mount Hope Mine, Eureka County, Nevada (open access)

Exploration of the Mount Hope Mine, Eureka County, Nevada

Report issued by the U.S. Bureau of Mines on the exploration of the Mount Hope mine. Analysis of samples obtained from core-drilling are listed. This report includes tables, maps, and illustrations.
Date: August 1946
Creator: Matson, E. J.
Object Type: Report
System: The UNT Digital Library
National Motor-Gasoline Survey: Winter 1945-46 (open access)

National Motor-Gasoline Survey: Winter 1945-46

Report issued by the U.S. Bureau of Mines on the motor fuels sold during the winter of 1945-46. The characteristics of the fuels sold, and the regions they were sold in are listed. This report includes tables, and maps.
Date: July 1946
Creator: Blade, O. C. & Sponsler, C. R.
Object Type: Report
System: The UNT Digital Library
United States Earthquakes, 1946 (open access)

United States Earthquakes, 1946

Report discussing earthquake activity in the United States during 1946. The report is broken down by regions and has sections for specific earthquakes.
Date: 1946
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Production of I sup 131 (open access)

Production of I sup 131

We have reviewed the problem of recovering I{sup 131} from the Separations Process and conclude that recovery is entirely feasible. This report contains recommendations for I{sup 131} recovery offered for consideration and are based on a technical study.
Date: April 17, 1946
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Production test 105-2-P (Supplement A) - Activity of pile discharge water (Activation of manganese and iron) (open access)

Production test 105-2-P (Supplement A) - Activity of pile discharge water (Activation of manganese and iron)

This report discusses the Production Test 105-2-P (Supplement A) -- Activity of Pile Discharge Water. Previous studies of pile discharge water have shown that one of two processes is responsible for the large but variable amount of Mn{sup 56} activity present in the water. One process is the production of Mn{sup 56} by the reaction Mn{sup 55} on manganese impurity in the water. The amount of such impurity has been shown to be too small to produce the observed amount of Mn{sup 56} unless the mean irradiation time is increased by a large factor due to temporary sticking of manganese on the surfaces in the tubes. The other process is the production by the reaction Fe{sup 56} on iron in the film. The present production test was designed to determine which of these processes is responsible for the troublesome Mn{sup 56} activity and to what extent the activity is increased due to sticking of manganese or iron in the tubes. 4 figs.
Date: May 8, 1946
Creator: West, J.M.
Object Type: Report
System: The UNT Digital Library
Heat Treatment and Machinability of Beryllium Rod (open access)

Heat Treatment and Machinability of Beryllium Rod

Purpose: "The purpose of this investigation was to determine whether or not the machinability of extruded beryllium rod could be improved by appropriate heat treatment. It was thought that this could be accomplished in the extruded Be rod by recrystallization without further growth of these grains. This should impart a certain degree of ductility to the metal. The investigations was divided into two parts: Part I - Heat Treatment of Beryllium Rod; Part II - Machinability of Beryllium Rod."
Date: February 19, 1946
Creator: Norhaft, P. C.
Object Type: Report
System: The UNT Digital Library
Effects of Specific Types of Surface Roughness on Boundary-Layer Transition (open access)

Effects of Specific Types of Surface Roughness on Boundary-Layer Transition

Report presenting tests of two typical low-drag airfoils of 90-inch chord to determine the effects of surface projections, grooves, and sanding scratches on boundary-layer transition. Data were obtained for projections of various sizes and chordwise locations on both low-drag airfoils.
Date: February 1946
Creator: Loftin, Laurence K., Jr.
Object Type: Report
System: The UNT Digital Library