Technical Report Archive and Image Library (TRAIL) - Browse

ABOUT BROWSE FEED

Tail Buffeting

Description: An approximate theory of buffeting is here presented, based on the assumption of harmonic disturbing forces. Two cases of buffeting are considered: namely, for a tail angle of attack greater and less than the stalling angle, respectively. On the basis of the tests conducted and the results of foreign investigators, a general analysis is given of the nature of the forced vibrations the possible load limits on the tail, and the methods of elimination of buffeting.
Date: February 1, 1943
Creator: Abdrashitov, G.
Partner: UNT Libraries Government Documents Department

Interim Report on the Location of Nonsaline Uraniferous Waters Suitable for Ion-Exchange Process

Description: From introduction: The Trace Elements Section Washington Laboratory had developed the methods used in anticipation of handling an increased volume of water analyses as this preliminary project is expanded into a full-scale investigation. The efforts of these groups were coordinated by the Trace Elements Planning and Coordination Office.
Date: November 1952
Creator: Aberdeen, E. J.; White, W. F.; Sherwood, A. M.; Bruce, F. L. & Ferguson, D. E.
Partner: UNT Libraries Government Documents Department

Modifications to Filling and Emptying System of Lock No. 1, Mississippi River, Minneapolis, Minnesota =: Hydraulic Model Investigation

Description: From abstract: The existing locks at Locks and Dam No. 1 were constructed between 1929 and 1932. Problems have been experienced with accumulation of ice and debris at the intakes, air entrapment in the culverts of the filling and emptying system, excessive turbulence in the lock chamber during filling, and hazardous conditions downstream from the locks during emptying operations.
Date: December 1979
Creator: Ables, Jackson H.
Partner: UNT Libraries Government Documents Department

Filling and Emptying System, Cannelton Main Lock, Ohio River, and Generalized Tests of Sidewall Port Systems for 110- by 1200-ft Locks: Hydraulic Model Investigation

Description: Report providing the results of a hydraulic model investigation of the Cannelton Lock proposed for construction on the Ohio River. It includes detailed information about the tests and suggested dimensions and features of the final lock.
Date: February 1966
Creator: Ables, Jackson H. & Boyd, M. B.
Partner: UNT Libraries Government Documents Department

Filling and Emptying Systems, Low-Lift Locks, Arkansas River Project: Hydraulic Model Investigation

Description: Results of a hydraulic model investigation based on locks in the Arkansas River before the construction of additional locks. "Model studies of the filling and emptying system proposed for use at the low-lift locks in the Arkansas project were conducted to confirm the adequacy of the original design hydraulic system, and to develop, if needed, improvements in the system" (p. 2).
Date: November 1966
Creator: Ables, Jackson H. & Boyd, M. B.
Partner: UNT Libraries Government Documents Department

Filling and Emptying Systems, Millers Ferry and Jones Bluff Locks, Alabama River, Alabama: Hydraulic Model Investigation

Description: Report providing results of hydrualic model investigations to test a new type of lock filling and emptying system to determine the final suggested construction for the Millers Ferry Lock in the Alabama River.
Date: March 1966
Creator: Ables, Jackson H., Jr. & Boyd, M. B.
Partner: UNT Libraries Government Documents Department

Reaction of Glass During Gamma Irradiation in a Saturated Tuff Environment, Part 3: Long-Term Experiments at 1x10^4 Rad/Hour

Description: Report on experiments to assess the importance of radiation effects on waste glass corrosion. This third part contains a description of the experiments, results, and discussion, with conclusions and related appendices.
Date: February 1988
Creator: Abrajano, Teofilo Aniag; Bates, John K.; Gerding, Thomas J. & Ebert, William L.
Partner: UNT Libraries Government Documents Department

The Theory of a Free Jet of a Compressible Gas

Description: In the present report the theory of free turbulence propagation and the boundary layer theory are developed for a plane-parallel free stream of a compressible fluid. In constructing the theory use was made of the turbulence hypothesis by Taylor (transport of vorticity) which gives best agreement with test results for problems involving heat transfer in free jets.
Date: March 1, 1944
Creator: Abramovich, G. N.
Partner: UNT Libraries Government Documents Department

Theoretical Investigation of the Effects of the Artificial-Feel System on the Maneuvering Characteristics of the F-89 Airplane

Description: The possibility of overshooting the anticipated normal acceleration as a result of the artificial-feel characteristics of the F-89C airplane at a condition of minimum static stability was investigated analytically by means of an electronic simulator. Several methods of improving the stick-force characteristics were studied. It is shown that, due to the lag in build-up of the portion of the stick force introduced by the bobweight, it would be possible for excessive overshoots of normal acceleration to occur in abrupt maneuvers with reasonable assumed control movements. The addition of a transient stick force proportional to pitching acceleration (which leads the normal acceleration) to prevent this occurring would not be practical due to the introduction of an oscillatory mode to the stick-position response. A device to introduce a viscous damping force would Improve the stick-force characteristics so that normal acceleration overshoots would not be likely, and the variation of the maximum stick force in rapid pulse-type maneuvers with duration of the maneuver then would have a favorable trend.
Date: December 31, 1952
Creator: Abramovitz, Marvin; Schmidt, Stanley F. & Belsley, Steven E.
Partner: UNT Libraries Government Documents Department

Sodium Waste Technology : a Summary Report

Description: The Sodium Waste Technology (SWT) Program was established to resolve long-standing issues regarding disposal of sodium-bearing waste and equipment. Comprehensive SWT research programs investigated a variety of approaches for either removing sodium from sodium-bearing items, or disposal of items containing sodium residuals. The most successful of these programs was the design, test, and the production operation of the Sodium Process Demonstration Facility at ANL-W. The technology used was a series of melt-drain-evaporate operations to remove nonradioactive sodium from sodium-bearing items and then converting the sodium to storable compounds.
Date: January 1987
Creator: Abrams, C. S. & Witbeck, L. C.
Partner: UNT Libraries Government Documents Department