This document reports the economic geology of the Lacasa area, Ranger district in North-Central Texas, with fieldwork done in April and May of 1919.

"This report presents the results of tests made on three sizes of roots type aircraft engine superchargers. The impeller contours and diameters of these machines were the same, but the length were 11, 8 1/4, and 4 inches, giving displacements of 0.509, 0.382, and 0.185 cubic foot per impeller revolution. The information obtained serves as a basis for the examination of the individual effects of impeller speed and displacement on performance and of the comparative performance when speed and displacement are altered simultaneously to meet definite service requirements" (p. 3).

"The relation between the elevator hinge-moment parameters and the control-forces for changes in forward speed and in maneuvers is shown for several values of static stability and elevator mass balance. The stability of the short-period oscillations is shown as a series of boundaries giving the limits of the stable region in terms of the elevator hinge-moment parameters. The effects of static stability, elevator moment of inertia, elevator mass unbalance, and airplane density are also considered" (p. 1).

Abstract: "This report indicates some of the methods employed at Los Alamos for the fabrication of refractory products."

This report describes an instrument used for electrolytic separation. It was one of four instruments previous used and improved, yet lacked details until now. The instrument's design and operation is described herein.

This document presents details of the specifications for the chemical development laboratory, in accordance with project 234-5.

This report summarizes in somewhat more detail than the monthly H.I. Environs reports the extent and magnitude of the radioactive contamination detected in the environs of the Hanford Works. Radioactive contamination resulting from the operation of the Hanford Works as well as that found occurring in natural quantities is included. This belated report is being issued merely for the records to serve as a composite summary of measurements already reported in the monthly H.I. Environs reports and covers the quarterly period January, February, and March, 1949.

Report presenting tests of the aerodynamic characteristics of two delta wings of the same aspect ratio and airfoil sections at Mach number 4.04. The results indicated that the ratio of the experimental lift-curve slope to the theoretical two-dimensional lift-curve slope from previous testing is valid at this Mach number.

Report presenting an investigation of the effects of tip-mounted jet-engine nacelles on the aerodynamic characteristics of low-aspect-ratio rectangular and tapered wings using the transonic-bump technique. The effect of the tip-mounted nacelles was generally to increase the lift-curve slopes for wings of aspect ratio 2 or larger with upper or lower mounted nacelles causing larger increases than symmetrically mounted nacelles. Results regarding rectangular wings and tapered wings are provided.

Ducks, geese, coots, and other wild birds, both migratory and resident, have been swimming on the Redox waste water pond and eating the herbage and mud on the bottom. The pond is caused by the discharge of five to ten million gallons of water a day from the heating and cooling coils of reactor vessels in the Redox plant. At least twice in recent months leaks in the coils have permitted solutions of radioactive material to escape to the swamp. Once the leak was in the waste concentrator tank and once in the first oxidation tank, so that the material in the swamp would include significant amounts of every radioisotope found in irradiated uranium, including plutonium and all fission products. This paper discusses the hazards to humans from handling or eating wildfowl and to risk of both internal and external exposure.

From Summary: "An investigation of a vortex-generator configuration on the wings of a l/4-scale model of the X-1 airplane having a 10-percent-thick wing was conducted in the Langley 16-foot transonic tunnel. The effect of the vortex generators was determined by comparing the model aerodynamic characteristics, wing-pressure distributions, and wing-wake patterns for model configurations with and without vortex generators on the wings. Results are presented from tests at 0.1 increments in Mach number from about 0.69 to 0.99, at Reynolds numbers of about 4.1 x 10(exp 6) to 4.7 x 10(exp 6), and through an angle-of-attack range up to 1.5 deg at lower speeds and up to 5 deg at the highest speed."

Abstract: "The energy-dependence of the formation cross section of certain nuclides formed in fission of uranium and thorium has been studied. Excitation functions in the hundred-Mev region are given for Ni66, Zr97, Ag111, Ba131, and Ba139. Protons, deuterons, and alpha particles from the Berkeley 184-inch frequency modulated synchro-cyclotron were used to induce the activities."

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Determining the major structural features of the area, and the relation between the uranium mineralization along Golden Gate canyon and that of Ralston Creek.

Herman Lurie's weekly report on the sugar market pertaining to tons of sugar, quotas, and pricing.

Daily cash report for Imperial Sugar Company including a list of large withdrawals for the months surrounding the date showing the daily expenses and estimated balance for each entry. It also lists scheduled payments for bank loans.

A scavenging process for the TBP Plant wastes has recently been installed and is expected to result in a considerable reduction in the waste tankage required for storage of TBP Plant Wastes. A similar process has been developed for scavenging the first cycle waste from the BiPO{sub 4} Plants. A study of future requirements and availability of tank storage space indicates that in order to avoid an overall plant critical tank shortage, or the necessity of construction of new tanks, a T-Plant waste scavenging program should provide cribbing facilities by February, 1955. Since tank storage space is critical ad the cost of such storage is a sizable factor in the overall plant operating costs, an investigation of the feasibility of the installation of this waste scavenging process in T-Plant has been undertaken.

Since start-up of the Redox Plant, different types of decontamination difficulties have been experienced and corrective measures taken. Current decontamination performance is superior to that ever experienced before. However, with the apparent need for the for elimination of the permanganate Head-End process for the IAF oxidation, several modifications to the plant flowsheet and equipment have been planned in order to obtain satisfactory overall decontamination without permanganate Head-End. The objectives of the memorandum are: to summarize generally and briefly the decontamination experience of the Redox process operating on IAF oxidized by sodium dichromate; to indicate the decontamination which probably can be obtained with the new Phase 2 equipment and its improved performance; and to re-evaluate the timing and feasibility of the current approaches for solving the long-range Redox decontamination problems arising as a result of oxidation of IAF by sodium dichromate (vice potassium permanganate).

Seven control rods will be used in the APPR-1 instead of five as originally planned. Critical experiments evaluating the rod worth for the APPR-1 have been performed at ORNL, and calculations have been carried out by ALCO interpreting these experimental results. The calculations indicate that the capability of any four of the original five rods to shut down the cold reactor at mid-life is marginal. The calculations are summarized in this memorandum. (auth)

A study was made to evaluate the possibility of an explosive reaction occurring in the Hanford Purex Plant concentrators as presently instrumented. Results revealed that the occurrence of an explosive reaction in the Purex Plant concentrators with present instrumentation is very unlikely. (W.L.H.)

A study was made to evaluate the possibility of an explosive reaction occurring in the Hanford Purex Plant concentrators as presently instrumented. Results revealed that the occurrence of an explosive reaction in the Purex Plant concentrators with present instrumentation is very unlikely.

From abstract: This proposal for a 6"D column plant is based on laboratory and pilot plant work done at Oak Ridge and at Model City.

The November, 1957 monthly report for the Chemical Processing Department of the Hanford Atomic Products Operation includes information regarding research and engineering efforts with respect to the Purex and Redox process technology. Also discussed is the production operation, finished product operation, power and general maintenance, financial operation, engineering and research operations, and employee operation. (MB)

Various mechanical-property measurements on several grades of manufactured (polycrystalline) graphite stock include tensile-strength determinatftons at temperatures from 20 to 2400 deg C (plus a few at 2500 deg C), tensile stress-strain and creep tests in the range 2000 to 2400 deg C, torsional strength and stress-strain measurements from 20 to 2600 deg C, torsional creep and stress-relaxation tests in the range from 2000 to 2500 deg C, dynamic Young's- modulus determinations from 20 to 2450 deg C, and evaluation of average coefficients of linear thermal expansion for the ranges 20 to 1050 deg C and 1300 to 2400 deg C. The materials studied include a Grade H4LM) molded in 36-in.-diam pieces, both as the standard stock with a nominal density of 1.74 g/cc and as stock re-impregnated to a nominal density of 1.80 to 1.85 g/cc, and four grades of graphite manufactured by the Los Alamos Scientific Laboratory containing normal uranium (added as UO/sub 2/ during the manufacture) in varying concentrations. The tensile-strength and creep data obtained are compared with the results of Los Alamos measurements upon similar materials. (auth)