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Requirements for auxiliary stiffeners attached to panels under combined compression and shear

Description: Panels of aluminum alloy sheets, framed by side and end stiffeners, were subjected to combined loading by means of offset knife edges applying loads to top and bottom end plates with reacting forces against the end plates supplied by laterally acting rollers. The test specimens were 17S-T aluminum alloy shoots 0.040 inch thick in panels of 10-inch width and three different lengths (approximately 10, 26, and 30 inch). Data were obtained for the bowing of transverse and longitudinal ribs of rectangular cross section and varying depths mounted on one side of the sheet only, for several ratios of compression to shear loads. Limiting values of the moments of inertia were calculated from these measurements. The experimental values exceed the theoretical values given by Timoshenko for the case of simply supported sheets with uniformly distributed boundary stresses. The work reported includes measurements of the effective shear moduli of the nine test panels with and without ribs. These data are compared with values published by Lahdo and Wagner.
Date: September 16, 1943
Creator: Scott, Merit & Weber, Robert L
Item Type: Report

Requirements for satisfactory flying qualities of airplanes

Description: Report discusses the results of an analysis of available data to determine what measured characteristics are significant in defining satisfactory flying qualities, what characteristics are reasonable to require of an airplane, and what influence the various design features have on the observed flying qualities.
Date: January 1, 1943
Creator: Gilruth, R R
Item Type: Report

Research and design problems introduced by increased power output

Description: In what follows the question of the number and geometrical arrangement of the cylinders so important in the design of high performance power units will be considered from various points of view. A discussion will be given of the possibilities of the various working processes and an investigation will be made of possible means for improving the continuous operation and take-off performance, particularly the methods of supercharging, increasing the r.p.m., and employing the two-stroke-cycle engine. Finally, the question of lowered fuel consumption will be gone over briefly. The subject will be treated under four headings: I) Considerations on the engine layout; II) Increase in output per given swept volume; III) Improvement in the take-off performance; IV) Lowering of the fuel consumption.
Date: October 1, 1937
Creator: Kurtz, Oskar
Item Type: Report

Research and Development Progress Report

Description: "The St. Louis Refinery produced its first UO3 and UO2 in 1942, and its first UF4 and U metal in 1943. The accent has always been on production, and the function of the extremely small research and development groups has been to aid the production units in their job. ... Recently, there has been a growing realization of the need for a broader and more detailed knowledge of both the chemical and technological aspects of all phases of work. ... This is the first of a series of quarterly progress reports on the research and development activities at the St. Louis Refinery."--p. 6
Date: October 15, 1952
Item Type: Report

Research and Development Studies on Waste Storage Process

Description: Report documenting "the determination of the thermal stability of various fission product oxides and nitrates, and an investigation of the gas phase decomposition of ruthenium tetroxide" (p. 4).
Date: May 19, 1961
Creator: Ortner, M. H.; Anderson, C. J. & Campbell, P. F.
Item Type: Report

Research and Innovation in the Building Regulatory Process

Description: Report issued by the U.S. National Bureau of Standards discussing studies conducted on building codes, standards, and regulations. The report includes transcripts from the 12th annual National Conference of States on Building Codes and Standards. This report includes tables, and illustrations.
Date: June 1980
Creator: Berry, Sandra A.
Item Type: Report

Research in Mathematics and Computer Science at Argonne, April 1, 1984-March 31, 1985

Description: This report reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period April 1, 1984, through March 31, 1985. The body of the report discusses various projects carried out in four major areas of research: applied analysis, computational mathematics, software engineering, and advanced computing. Information on section staff, visitors, workshops, and seminars is found in the appendices.
Date: 1985
Creator: Pieper, Gail W. & Messina, P. C.
Item Type: Report

Research in Mathematics and Computer Science at Argonne : April 1, 1985 - June 30, 1986

Description: This report reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period April, 1985 through June 30, 1986. The body of the report gives a brief look at the MCS staff and the research facilities, and discusses various projects carried out in four major areas of research: advanced computing, applied analysis, computational mathematics, and software methodology. Information on division staff, visitors, workshops, and seminars is found in the appendixes.
Date: 1986
Creator: Pieper, Gail W. & Messina, P. C.
Item Type: Report

Research in Mathematics and Computer Science at Argonne : January 1988 - August 1989

Description: This report, reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period January 1988 - August 1989. The body of the report gives a brief look at the MCS staff an-d the research facilities, and discusses various projects carried out in two major areas of research: analytical and numerical methods and advanced computing concepts. Projects funded by non-DOE sources are also discussed, and new technology transfer activities are described. Further informant ion or division staff, visitors, workshops, and seminars is found in the appendices.
Date: August 1989
Creator: Pieper, Gail W.
Item Type: Report

Research in Mathematics and Computer Science at Argonne : July 1, 1986 - January 6, 1988

Description: This report reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period July 1, 1986, through January 6, 1988. The body of the report gives a brief look at the MCS staff and the research facilities, and discusses various projects carried out in two major areas of research: analytical and numerical methods and advanced computer systems concepts. Information on division staff, visitors, workshops, and seminars is found in the appendixes.
Date: 1988
Creator: Pieper, Gail W.
Item Type: Report

Research in Mathematics and Computer Science at Argonne : September 1989 - February 1991

Description: This report reviews the research activities in the Mathematics and Computer Science Division at Argonne National Laboratory for the period September 1989 through February 1991. The body of the report gives a brief look at the MCS staff and the research facilities and then discusses the diverse research projects carried out in the division. Projects funded by non-DOE sources are also discussed, and new technology transfer activities are described. Further information on staff, visitors, workshops, and seminars is found in the appendixes.
Date: August 1991
Creator: Pieper, Gail W.
Item Type: Report

Research in Mathematics and Computer Science: March 1, 1991 - September 30, 1992

Description: This report discusses the following topics in mathematics and computer science at Argonne National Laboratory: Harnessing the Power; Modeling Piezoelectric Crystals; A Two-Way Street; The Challenge Is On; A True Molecular Engineering Capability; CHAMMPions Attack Climate Issues; Studying Vortex Dynamics; Studying Vortex Structure; Providing Reliable and Fast Derivatives; Automating Reasoning for Scientific Problem Solving; Optimization and Mathematical Programming; Scalable Algorithms for Linear Algebra; Reliable Core Software; Computing Phylogenetic Trees; Managing Life-Critical Systems; Interacting with Data through Visualization; New Tools for New Technologies.
Date: October 1992
Creator: Pieper, Gail W.
Item Type: Report