Technical Report Archive & Image Library (TRAIL) - 32,762 Matching Results

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Hindrance Factors For Alpha Decay

Description: The theoretical half lives for alpha emissions have been calculated for nearly all of the complex alpha spectra. The spin independent equations of Preston were used for the calculations. The nuclear radius for the even-even nuclei was determined with the assumption that the alpha transition to the ground state is unhindered. For odd mass nuclides the average of the nuclear radii of the adjacent even-even nuclides was used. For odd-odd nuclides the average of the nuclear radii of the adjacent od… more
Date: May 1960
Creator: Michel, Helen V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies on the Hydraulic Characteristics of Purex Off-Gas Jets

Description: The design of the Purex Off-Gas Treatment Facility requires the use of new dissolver off-gas jets which will be installed in series with present jets in the Purex in-canyon "donut" jumpers. When the new jets are placed in operation, the motive air and steam supply services to the in-canyon jets will no longer be required and the in-canyon jets will become flow restrictions in the dissolver off-gas train. Calculated values of pressure drop across these "dead" jets at maximum off-gas rate varied … more
Date: March 14, 1956
Creator: Michels, L.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Process Polarography: Some Problems in the Automatic Determination of Uranium in Nitric Acid

Description: One of the few analytical methods for low levels of uranium which can be adapted for continuous and automatic in-line analysis of Purex process solutions is the polarographic method. Polarographic monitors for uranium in aqueous wastes have been tested in plant and pilot plant operations during the past three years. From time to time the current-voltage waves obtained deviated so much from the classical "S" shaped curves as to render them virtually useless. Furthermore, the correlation of these… more
Date: April 24, 1956
Creator: Michelson, C. R. & Koyama, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of standing transverse acoustic oscillations on fuel-oxidant mixing in cylindrical combustion chambers

Description: Vapor fuel-oxidant mixing is analyzed for standing transverse acoustic fields simulating those existing in screeching or screaming combustors. The additional mixing due to the acoustic field is shown to be a function of sound pressure and frequency, stream velocity, and turbulence. The effects of these parameters are shown graphically for a realistic range of combustor conditions. The fuel-oxidant ratio at various combustor stations is shown to have a cyclic fluctuation which is in phase with t… more
Date: May 1957
Creator: Mickelsen, William R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An experimental comparison of the Lagrangian and Eulerian correlation coefficients in homogeneous isotropic turbulence

Description: Report presenting an experimental comparison between the Langrangian and Eulerian correlation coefficients in the homogeneous, isotropic central core of a turbulent pipe flow. They had similar shapes related by a linear proportionality between their time and space coordinates. Results regarding the general stream conditions, lateral turbulence-intensity measurements, longitudinal turbulence-intensity measurements, radial and axial measurements of the Eulerian correlation coefficient, and turbul… more
Date: October 1955
Creator: Mickelsen, William R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Propagation of a free flame in a turbulent gas stream

Description: Effective flame speeds of free turbulent flames were measured by photographic, ionization-gap, and photomultiplier-tube methods, and were found to have a statistical distribution attributed to the nature of the turbulent field. The effective turbulent flame speeds for the free flame were less than those previously measured for flames stabilized on nozzle burners, Bunsen burners, and bluff bodies. The statistical spread of the effective turbulent flame speeds was markedly wider in the lean and r… more
Date: May 7, 1956
Creator: Mickelsen, William R. & Ernstein, Norman E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Propagation of a free flame in a turbulent gas stream

Description: Report presenting the measurement of effective flame speeds of free turbulent flames using photographic, ionization-gap, and photomultiplier tube methods and were found to have a statistical distribution attributed to the nature of the turbulent field.
Date: July 1955
Creator: Mickelsen, William R. & Ernstein, Norman E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement and Analysis of Turbulent Flow Containing Periodic Flow Fluctuations

Description: Memorandum presenting techniques for the measurement of the energy spectrum of flow fluctuations in both axial and lateral flow directions. A simple spectrum analysis is presented by which quantitative distinction may be made between turbulence and the flow disturbances associated with sound waves in ducts. Results regarding the measurement and analysis of turbulent-flow fields containing random and periodic flow fluctuations, effect of random sound disturbances on turbulence spectrum, and effe… more
Date: August 19, 1953
Creator: Mickelsen, William R. & Laurence, James C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement and analysis of turbulent flow containing periodic flow fluctuations

Description: Report presenting techniques for the measurement of the energy spectrum of flow fluctuations in both axial and lateral flow directions. Data indicated that the energy spectrum of the turbulence is not affected by periodic and random sound disturbances outside the frequency containing the disturbances.
Date: August 19, 1953
Creator: Mickelsen, William R. & Laurence, James C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Report on Existing Active Particle Hazard-200 Areas

Description: "Recent surveys by the Health Instrument Section have disclosed the presence of many small radioactive spots on ground surfaces in the T and B plant areas. Investigation has shown that representative samples of the spots when mechanically separated invariably end in a single radioactive particle."
Date: October 22, 1947
Creator: Mickelson, M. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Earth Vibrations from a Nuclear Explosion in a Salt Dome

Description: The following report presents data from the SALMON experiment, an experiment made to study the mechanics of a tamped nuclear detonation in a salt dome in terms of generated shock waves as they are propagated out of the dome and progressively through the crust and mantle of the earth. This experiment was made in the Tatum salt dome, Mississippi, October 22, 1964.
Date: March 17, 1967
Creator: Mickey, W. V.; Lowrie, L. M. & Shugart, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Report of Uranium Favorability of the San Rafael Swell Area, East-Central Utah

Description: Preliminary copy of a report on uranium availability in the San Rafael Swell Area in Utah in addition to supplementary data containing locations of mines, test wells and geologic maps of the San Rafael Swell Area.
Date: October 1977
Creator: Mickle, David G.; Jones, C. A.; Gallagher, G. L.; Young, Patti. & Dubyk, W. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Uranium Favorability of the San Rafael Swell Area, East-Central Utah

Description: Purpose and scope: The purpose of this study was to delineate new areas favorable for uranium exploration in the San Rafael Swell region of east-central Utah. Emphasis was placed on the sandstone and siltstone members of the lower Chinle Formation (Triassic) and on the Salt Wash and Brushy Basin Members of the Morrison Formation (Jurassic). The White Rim Sandstone (Permian) was also studied, but not extensively. This project began in January 1976 and was completed in March 1977. Field work was … more
Date: October 1977
Creator: Mickle, David G.; Jones, C. A.; Gallagher, G. L.; Young, Patti. & Dubyk, W. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of a fixed spoiler as a gust alleviator

Description: Report presenting an investigation in the gust tunnel to determine the effectiveness of a fixed spoiler, forwardly located on the upper surface of a wing, in reducing the loads imposed on airplanes in flight through gusty air. Testing occurred through a sharp-edge and a gradient gust with and without spoilers. The results indicate that the model has roughly the same maximum acceleration with and without spoilers in a sharp-edge gust.
Date: November 1948
Creator: Mickleboro, Harry C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flight investigation of the effect of transient wing response on wing strains of a twin-engine transport airplane in rough air

Description: Report presenting a flight investigation on a twin-engine transport airplane to determine the strains associated with the dynamic behavior of the wing during flights through rough air. Flights were made in clear-air turbulence for different wing fuel loads and for two speed conditions at a range of altitudes. Results indicated that the bending strains per unit normal acceleration in gusts were approximately 20 percent higher than those in slow pull-ups for all measuring positions and flight con… more
Date: July 1951
Creator: Mickleboro, Harry C. & Shufflebarger, Charles C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flight Investigation of Transient Wing Response on a Four-Engine Bomber Airplane in Rough Air With Respect to Center-of-Gravity Accelerations

Description: Report presenting a flight investigation on a four-engine bomber to determine the effect of transient wing response in rough air on the acceleration measurements at the center of gravity of the airplane. Flights occurred in clear-air turbulence for two speed and two weight conditions. The results indicate that transient-response effects on total aerodynamic load are small for the test airplane.
Date: September 1952
Creator: Mickleboro, Harry C.; Fahrer, Richard B. & Shufflebarger, C. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Momentum Transfer for Flow Over a Flat Plate with Blowing

Description: Note presenting a study of the effect on the boundary layer of blowing air through a porous flat plate into a main airstream flowing parallel to the plate. Measurements were made of velocity profiles and wall friction coefficients. The observed friction coefficients are predicted by mixture-length theory if the Reynolds number at the outer edge of the laminar sublayer is permitted to vary with the dimensionless ratio.
Date: November 1957
Creator: Mickley, H. S. & Davis, R. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat, Mass, and Momentum Transfer for Flow Over a Flat Plate With Blowing or Suction

Description: Note presenting testing of a woven fiberglass-nichrome wire heater cloth attached directly to the back side of the porous test wall in order to insure exact and known temperature profiles for the injected air. Suction was found to decrease the boundary-layer thickness, increase the magnitude of the friction and heat transfer coefficients, and delay the transition from laminar to turbulent flow.
Date: July 1954
Creator: Mickley, H. S.; Ross, R. C.; Squyers, A. L. & Stewart, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General Solutions of Optimum Problems in Nonstationary Flight

Description: "A general method concerning optimum problems in nonstationary flight is developed and discussed. Best flight techniques are determined for the following conditions: climb with minimum time, climb with minimum fuel consumption, steepest climb, descending and gliding flight with maximum time or with maximum distance. Optimum distributions of speed with altitude are derived assuming constant airplane weight and neglecting curvatures and squares of path inclination in the projection of the equatio… more
Date: October 1955
Creator: Miele, Angelo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Optimum Flight Paths of Turbojet Aircraft

Description: "The climb of turbojet aircraft is analyzed and discussed including the accelerations. Three particular flight performances are examined: minimum time of climb, climb with minimum fuel consumption, and steepest climb. The theoretical results obtained from a previous study are put in a form that is suitable for application on the following simplifying assumptions: the Mach number is considered an independent variable instead of the velocity; the variations of the airplane mass due to fuel consum… more
Date: September 1955
Creator: Miele, Angelo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Steady Properly-Banked Turns of Turbojet-Propelled Airplanes

Description: "The problem of a jet-propelled airplane held in a steady turn is treated both in the very general case and also in the particular case when the polar curve can be approximated by a parabola. Once the general solution has been obtained, some typical maneuvers are next studied such as, the turn of maximum bank, of maximum angular velocity, and of minimum radius of curvature. After a brief comparison is made between the turning characteristics of conventional airplanes and jet airplanes, and afte… more
Date: March 1955
Creator: Miele, Angelo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical Composition as a Guide to the Size of Uranium Deposits in the Salt Wash Member of the Morrison Formation, Colorado Plateau

Description: Report discussing the use of chemical concentrations of certain elements in uranium deposits of the Colorado Plateau as a guide for the size of the deposits.
Date: June 1959
Creator: Miesch, A. T.; Shoemaker, E. M.; Newman, W. L. & Finch, W. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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