From Introduction: "The present report is intended to give a qualitative picture of the operation of each stage of a multistage compressor over a range of actual operating conditions from 50 to 100 percent design speed and to point out some means of achieving improved off-design performance. The method used in the report is primarily analytical and is based on single-stage-performance results."

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Calibrations have resulted in conflicting data for the yield of neutrons from a teflon-polonium solution interface. The installation of the continuous DRUHM reaction system is approximately 60% complete. The Fluorox fluidized bed reactor was operated continuously for 12 hr, producing 1.6 Kg of UF/sub 6/. In homogeneous reactor studies, installation of a mock-up for in-pile slurry bomb heat removal tests was completed. From material balances, about 21/2 g of plutonium remain in loop P-1 after repeated washing and descaling treatments. A Sharples Model P-4 Super-DCanter was adequate for continuously discharging ThO/ sub 2/ cake and clarified supernate. In ion exchange studies, data were obtained on the complex ion equilibria in uranyl sulfate solutions. A continuous self- sustaining Darex dissolution and stripping run of 46 hr duration was made. In a hydrochlorination run of 35 hr duration, 97.4% of a 4.39 kg section of a STR subassembly was reacted with anhydrous HCI gas with a uranium loss to the sublimate of 0.095%. The studies of the dissolution of duminy zirconium fuel elements in fused salt with HF were continued at increased HF velocities. In waste processing studies, the design of an adiabatic self-sintering experiment is 90% complete and the construction of …

>A continuous process for the reduction of uranium hexafluoride to uranium tetrafluoride was developed and proved on a pilot-plant scale. Complete conversion to uranium tetrafluoride was realized by contacting gaseous uranium hexafluoride with hydrogen in a heated, vertical, open-tube reactor. The purity and density of the solid product met metal grade uranium tetrafluoride specifications. Some difficulty with the accumulation of fused uranium fluorides in the tower was encountered, however, and it was necessary to stop and desing the unit about every 8 to 24 hours. The reaction of uranium hexafluoride with gaseous trichloroethylene was stadied before the tests with hydrogen were made. Although the reduction to uranium tetrafluoride was complete, the solid product was highly contaminated with the organic by-products of the reaction and was quite low in density. Tests of this method were discontinued when promising results were obtained with hydrogen as the reductant. (auth)

Early in the design of the Mark I accelerator it was decided to install magnetic lenses in the drift tubes. A number of model magnets were constructed and tested to determine the best design for these lenses. This report includes only the results of the tests on the final models of the magnets that are designed for Mark I.

This document consists of three photographs of ruptured fuel elements. The position, date charged, date failed, exposure, power, lot and failure type are given for tube 3655-KE, tube 4153-KE, and tube 3849-KE. (GHH)

"The flow-field characteristics around a swept-wing airplane model at low subsonic speed are described, and the loads induced on a typical missile model while operating within these flow fields are presented. In addition, theoretical flow fields are compared with experiment and are used in first-order estimations of the resulting induced missile loads" (p. 1).

"An investigation of forced-convection heat transfer and associated pressure drops was conducted with air flowing through electrically heated Inconel tubes having various degrees of square-thread-type roughness, an inside diameter of 1/2 inch, and a length of 24 inches were obtained for tubes having conventional roughness ratios (height of thread/radius of tube) of 0 (smooth tube), 0.016, 0.025, and 0.037 over ranges of bulk Reynolds numbers up to 350,000, average inside-tube-wall temperatures up to 1950deg R, and heat-flux densities up to 115,000 Btu per hour per square foot" (p. 1).

Memorandum presenting an investigation to determine the practicability of using blade boundary-layer control in order to obtain high turning angles in a stator-blade row. The overall performance of the stage was obtained for a range of weight flows at each of three tip speeds with and without hub section. Results regarding slot configuration, overall performance, and stator-blade wakes are provided.

Report presenting a wind-tunnel investigation to determine the drag increment due to the superposition of the wedges with various plan-form shapes along the trailing edge of a sweptback wing.

This memorandum provides an estimate of the uranium requirements for the third and fourth quarters of calendar year 1955.

This report describes the operation of the fuels preparation department for the month of May, 1957. Manufacturing, employee relations, process development, plant improvements, and financial operations are described.

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This report analyzes two high-current linear accelerators, the A-54--a 48.5 megacycle resonant cavity accelerator--and the A-48, that is under construction during the time this report is written.

Report issued by the Oak Ridge National Laboratory discussing radiation corrosion studies. As stated in the introduction, "the purpose of this experiment was to compare the performance of a large number of materials under similar irradiation and exposure conditions" (p. 1). This report includes tables, illustrations, and photographs.

Report presenting some of the hydrodynamic problems associated with launching an air missile from underwater. The results of an experiment with models are also provided, including deviation angle, effect of forward speed of the submarine, curved path of the missile, and potential environmental disruptions.

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Report presenting design features for the instrumentation used in a study of the transient performance of gas-turbine engines and control systems. The dynamic characteristics of the instrumentation are discussed and examples of typical acceleration data for a controlled and an uncontrolled engine are provided.

Results obtained with three different burner configurations in a connected-pipe investigation of a 16-inch ram jet are presented. The radial position of the fuel injector and the engine-outlet area both affected burner performance. For a given configuration, only slight changes in total-pressure ratio across the combustion chamber were obtained over the complete range of operation. With one burner, combustion efficiencies obtained at a combustion-chamber-inlet static pressure of 800 pounds per square foot absolute were greater than those obtained at 1920 pounds per square foot absolute.

Report presenting an evaluation of the relative importance of heat-transfer modes in an experimental afterburner. The convective heat-transfer coefficients near the combustion-chamber outlet were determined and the effects of three radial distributions of afterburner fuel across the turbine-outlet annulus on the convective heat-transfer coefficient were examined.

Research and development work on the removal of specific fission products from aqueous wastes has been in progress at the Hanford Atomic Products operation for several years. Initially, the primary incentive lay in the safe and economic disposal of these wastes. Scavenging techniques were developed which permitted the precipitation of the long-lived and biologically hazardous fission products cesium and strontium and the subsequent discharge of the supernates to the soil. Recently, interest has increased in the recovery of specific fission products for use in industry. Accordingly, research and development efforts have been expanded to include the search for economic processes for the isolation of specific fission products from Hanford wastes. The processes and techniques thus far developed are logical outgrowths of the scavenging processes currently being used in the disposal of Hanford wastes. The Hanford Operations Office directed a letter of inquiry to the General Electric Company requesting an appraisal of the feasibility of isolating and packaging radiocesium from Hanford wastes. In accordance with this request, the Engineering Department conducted a brief survey to determine the process, engineering, and economic feasibility of recovering specific fission products from Hanford waste solutions. This document presents the combined efforts of personnel from Chemical …

"From these preliminary wind-tunnel tests of interceptor missile configurations and the analysis of point defense against ballistic missiles, it is concluded that adequate aerodynamic lift is readily available and should be utilized when operating under high-dynamic-pressure conditions and that more work should be done on controls, either aerodynamic or reaction type, so that the configurations may be trimmed to the angles of attack required to develop the necessary turning force" (p. 5).