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An Isotope Effect in a Simple Chemical Reaction

Description: It has been found that the carbon dioxide obtained from the decarboxylation of singly-carboxyl labeled malonic acid is impoverished in the C{sup 14} label and that the acetic acid formed is correspondingly enriched.
Date: July 13, 1948
Creator: Yankwich, Peter E. & Calvin, Melvin
Partner: UNT Libraries Government Documents Department
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Determination of Particle Size Distribution and Surface Area by Photometry

Description: The following report describes procedures taken to utilize the photelometer to procure the most rapid and reliable determinations, but the goal of the tests presented was to create satisfactory dispersions of particles to analyze.
Date: May 13, 1948
Creator: King, D. R. & Panowski, J. B.
Partner: UNT Libraries Government Documents Department
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Health problems associated with investigation of off-plant uranium rolling. Rough draft

Description: The following is a report of a trip to the Simonds Saw & Steel Company, Lockport, New York, on May 3, 1949. The purpose of the visit was to observe the various operations involved in the rolling of uranium rods at this plant and health problems associated with the rolling operations.
Date: May 13, 1949
Creator: Adley, F. E.
Partner: UNT Libraries Government Documents Department
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Deaeration of process water in the F Area

Description: This memorandum discusses the deaeration of process water for the F area at the Hanford Engineer Works. The memorandum is dated July 13, 1944.
Date: July 13, 1944
Creator: Dunnington, W.
Partner: UNT Libraries Government Documents Department
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Minutes of meeting on Columbia River studies

Description: This document contains minutes of a meeting on Columbia River studies that took place on July, 13, 1945. Topics discussed include: dispersal of thermal effluent, viability of current sampling techniques, survey records of chemical and bacteriological analysis, the results of the fish study, analytical procedures to determine the addition of small amounts of addition agents, radioactivity studies, and determination of new sampling points.
Date: July 13, 1945
Creator: Kidder, C. P.
Partner: UNT Libraries Government Documents Department
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Investigation of contamination bearing algae in the Columbia River

Description: Recent discussions in the group have given rise to the problem of determining whether the beta contamination found in the Columbia River is carried by the algae which are found in the retention basin. The algae accumulate in the basin and apparently remain there longer than the retained water, and thus may be contaminated to a greater extent than the water itself.
Date: October 13, 1947
Creator: Paas, H. J.
Partner: UNT Libraries Government Documents Department
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Graphite expansion committee meeting of June 6, 1947

Description: The gas thermometer in the F Pile has been overhauled and re-calibrated. The readings are still in agreement with the readings from the graphite thermocouples. A similar overhaul of the gas thermometer in the D Pile will be made during June. The progress of further outward bowing of Tube 2496-D can not be followed satisfactorily even though readings are obtained from both inlet and outlet ends of the tube. Preliminary results obtained from the one-tube mock-up suggest the possibility that the g… more
Date: June 13, 1947
Creator: Woods, W. K.
Partner: UNT Libraries Government Documents Department
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Distribution of Boron in Processing of Carnotite Concentrate

Description: It was desired to determine the distribution of boron in the various steps of the processing of domestic ore concentrates containing high percentages of boron. The experiments described in this report were directed toward that end. Summary of this report are: (1) a black oxide containing 0.6 ppm of boron was prepared from material containing 350 ppm; (2) less than 0.02% of the boron in the original material appeared in the black oxide; (3) the iron step did not remove appreciable amounts of bor… more
Date: March 13, 1947
Creator: O'Connors, R. J.
Partner: UNT Libraries Government Documents Department
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Operating standards: Study of start up, physics measurements

Description: As a starting point for planning the physics measurements to be made during the start up of the pile, this memorandum describes a procedure for each of three cases, a large poisoned pile, running at power with a small unpoisoned pile but marking physics measurements with the large pile before going to power, and a similar case except that the physics measurements on the large pile are done after running with power on the small pile This memorandum should by no means be taken as a final proposal… more
Date: April 13, 1944
Creator: Marshall, J.
Partner: UNT Libraries Government Documents Department
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Production of (Uranium) Tetrafluoride

Description: Production of tetrafluoride for the month of April was 49,400. New equipment installed late in March operated smoothly and the production was slightly over the rated capacity of the plant. Nickel ends were welded on to the steel reactor tubes to prevent corrosion at the cover joint and possible contamination of the product with iron. The nickel ends will also save considerable repair work on the tube ends. The magnesium trays for some of the reactors are beginning to crack at the sides from fre… more
Date: May 13, 1943
Creator: Long, K. E. & Swinehart, C. F.
Partner: UNT Libraries Government Documents Department
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HIGH VOLTAGE RECTIFICATION

Description: No Description Available.
Date: April 13, 1945
Creator: Nelson, W.H.
Partner: UNT Libraries Government Documents Department
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Crystal Densities of Uranium Chlorides

Description: Abstract: "Using xylene as the densimetric solvent, the crystal densities have been determined by the pyknometric method for the following chlorides, UCl3, UCl4, UCl6(UCl4), UCl6 and U02Cl2."
Date: December 13, 1946
Creator: Sterett, C. C. & Calkins, V. P.
Partner: UNT Libraries Government Documents Department
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Effect of NACA Injection Impeller and Ducted Head Baffles on Flight Cooling Performance of Double-Row Radial Engine in Four-Engine Heavy Bomber

Description: "The NACA has conducted a flight investigation to improve the cooling characteristics of the installation of a double-row radial engine. The tests reported herein concern the use of the NACA injection impeller and ducted head baffles in various combinations on both the port inboard and the port outboard engines. The performance of the modified installation was evaluated by comparing it with that of the standard engines" (p. 1).
Date: April 13, 1945
Creator: Marble, Frank E.; Miller, Mahlon A. & Vensel, Joseph R.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of velocity distributions of downstream of single duct bends

Description: Report presenting measurements of the velocity distributions at the outlet of a large number of duct elbows of round and elliptical as well as square and rectangular cross section at a range of Reynolds numbers. Special investigations include measurements of the decay of velocity patterns produced by curved ducts and the effect of asymmetrical upstream velocity distributions. Results regarding typical distributions, tabulation of principal results, and special investigations are provided.
Date: January 13, 1947
Creator: Weske, John R.
Partner: UNT Libraries Government Documents Department
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Investigation of shock diffusers at Mach number 1.85 3: multiple-shock and curved-contour projecting cones

Description: Report presenting total-pressure recoveries obtained with four-cone inlet combinations at Mach number 1.85. The configurations tested included a cone designed to produce three oblique shocks ahead of the diffuser inlet combined with two other inlets, a cone generated by a parabolic arc in combination with two other inlets, a cone-inlet combination designed to produce an isentropic entrance flow at 0 degrees angle of attack, and a 30 degree single-shock cone combined with a perforated inlet sect… more
Date: August 13, 1947
Creator: Moeckel, W. E. & Connors, J. F.
Partner: UNT Libraries Government Documents Department
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An investigation of the effect of tip shape on the low-speed aerodynamic characteristics of large-scale swept wings

Description: Report presenting an investigation of the effect of tip shape on the aerodynamic characteristics of large-scale 45 degrees swept-forward and 45 degrees swept-back wings. The results show that none of the variations of tip shape investigated nor the addition of bodies of revolution at the tips produced major changes in the characteristics of the swept wings.
Date: November 13, 1947
Creator: Walling, Walter C.
Partner: UNT Libraries Government Documents Department
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Free-Flight Investigation of Fullspan, 0.2 Chord Plain Ailerons at High Subsonic, Transonic, and Supersonic Speeds to Determine Some Effects of Wing Sweepback, Taper, Aspect Ratio, and Section-Thickness Ratio

Description: Report presenting an aerodynamic-control-effectiveness investigation using free-flight rocket-propelled RM-5 test vehicles at high subsonic, transonic, and supersonic speeds. Results regarding aileron control characteristics and drag measurements are provided.
Date: August 13, 1947
Creator: Sandahl, Carl A.
Partner: UNT Libraries Government Documents Department
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Theoretical analysis of the performance of a supersonic ducted rocket

Description: Report presenting calculated performance characteristics of a ducted rocket with gasoline and liquid oxygen as the fuel mixture and with a mass flow of 1 slug per second. Evaluations of net thrust, frontal area, thrust per unit frontal area, and specific fuel consumption are given for all of the flight conditions under which it might operate.
Date: February 13, 1948
Creator: Hensley, Reece V.
Partner: UNT Libraries Government Documents Department
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