52 Matching Results

Search Results

Results: 1 - 24 next
open access

Report on discussion of Pinex experiment with J-12 group at Los Alamos

Description: Plans for participation in Operation Hardtack include performance of a Pinex experiment on three barge-based events: Nutmeg, Hickory, and Juniper. The J-12 group at Los Alamos has been planning for a group of similar experiments. Inclusion of Pinex in the Hardtack diagnostic program occurred considerably later; also, J-12 has successfully carried out two Pinex experiments during Operation Plumbbob. This visit was made to take the fullest possible advantage of their experience to date. Discussio… more
Date: December 30, 1957
Creator: Boyrie, E.; Chesterman, A. & Clark, A.
Partner: UNT Libraries Government Documents Department
open access

THE OXIDATION OF MERCURY BY NITRIC ACID

Description: The oxidation of Hg in HNC/sub 3/ was investigated. An empirical rate law, oxidation rates, and Hg species in solution were determined. A reaction mechanism based on the presence of nitrous acid can be interpreted in terms of the rate expression derived. (auth)
Date: November 30, 1957
Creator: Murray, R.F. & Schneider, H.
Partner: UNT Libraries Government Documents Department
open access

Dimensionally Stable Alloys. Interim Report

Description: The development of dimensionally stable alloys for high temperature reactor application is discussed. Cold pressing followed by sintering was determined to be the most satisfactory method. Evaluation of alloys by alpha - beta thermal cycling indicated the superiority of U--Mo and U--Nb alloys. A few specimens containing small additions of Mo, Nb, and Si were irradiation tssted in the Materials Testing Reactor. Of these, the Nb alloy (1.6 wt.% Nb) appeared to be most stable. The Mo alloys were s… more
Date: October 30, 1957
Creator: Eiss, A. L. & Kalish, H. S.
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation at Low Angles of Attack to Determine the Longitudinal Stability and Control Characteristics of a Cruciform Canard Missile Configuration With a Low-Aspect-Ratio Wing and Blunt Nose at Mach Numbers From 1.2 to 2.1

Description: Report presenting flight testing of a rocket-powered model of a cruciform canard missile configuration with a low-aspect-ratio wing and blunt nose. Results regarding the lift coefficient, dynamic stability, static stability, control effectiveness, and drag are provided.
Date: September 30, 1957
Creator: Brown, Clarence A., Jr.
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation at Low Angles of Attack to Determine the Longitudinal Stability and Control Characteristics of a Cruciform Canard Missile Configuration With a Low-Aspect-Ratio Wing and Blunt Nose at Mach Numbers From 1.2 to 2.1

Description: Report presenting testing of a full-scale rocket-powered model of a cruciform canard missile configuration with a low-aspect-ratio wing and blunt nose. Static and dynamic longitudinal stability and control derivatives were determined at low angles of attack and for a range of Mach numbers.
Date: September 30, 1957
Creator: Brown, Clarence A., Jr.
Partner: UNT Libraries Government Documents Department
open access

Flight Investigation of Factors Affecting the Choice of Minimum Approach Speed for Carrier-Type Landings of a Swept-Wing Jet Fighter Airplane

Description: Report presenting flight testing and analog-computer studies using flight-test results of a swept-wing jet fighter in the landing condition to determine the factors that influence a pilot to select the minimum approach speed for carrier-type landings. Many factors that influenced the pilot occurred in approximately the same speed range, and the quantitative determination of the influence of each factor was not possible. Results regarding measurement of airplane and engine characteristics, field… more
Date: September 30, 1957
Creator: Lina, Lindsay J.; Morris, Garland J. & Champine, Robert A.
Partner: UNT Libraries Government Documents Department
open access

An Investigation of Scaling of Zirconium at Elevated Temperatures Quarterly Status Report No. 17

Description: This progress report covers the period of June 2, 1957 to September 2, 1957. During this period data were obtained on the scaling behavior of graphite-melted and arc-melted zirconium in oxygen, and a comparison made with air studies of the same materials.
Date: September 30, 1957
Creator: Probst, H. B. & Evans, E. B.
Partner: UNT Libraries Government Documents Department
open access

Lateral Stability Investigation at Mach Numbers From 0.8 to 1.7 of Two Rocket-Boosted Models of an Airplane Configuration With a 45 Degree Swept Wing and a Low Horizontal Tail

Description: "Rocket-boosted free-flight tests of two models of an airplane configuration having a 45 degree swept wing and a low horizontal-tail position have provided lateral stability derivatives and control effectiveness data for a Mach number range from 0.8 to 1.7. The experimental lateral stability derivatives presented are corrected to rigid conditions and compared with theoretically calculated rigid derivatives. The results are presented without detailed analysis" (p. 1).
Date: September 30, 1957
Creator: McFall, John C., Jr.; Mitchell, Jesse L. & Vitale, A. James
Partner: UNT Libraries Government Documents Department
open access

Nuclear Battery-Thermocouple Type Third Quarterly Report for July 1, 1957 to September 30, 1957

Description: A second thermoelectric generator consisting of unitized rings of thermopiles was designed and constructed. Three and four rings were asserabled into generators and tested. A maximum efficiency of 0.67% was obtained. At a DELTA T of 400 deg C, an efficienty of 0.56% was obtained; the theoretical maximum for the materials used is 0.83%. (auth)
Date: September 30, 1957
Creator: Blanke, B. C.
Partner: UNT Libraries Government Documents Department
open access

A REVIEW OF THE RESEARCH PROGRAM OF THE DOW CHEMICAL COMPANY FOR THE RAW MATERIALS DIVISION OF THE U.S. ATOMIC ENERGY COMMISSION. Final Report

Description: A summary of the research work done over a 9 1/2 year period and lists of reports and publications are given. The research program involved the development and application of ion exchange, solvent extraction and other methods to the recovery of uranium and other values from ores and leach solutions and exploratory studies on processes for manufacture of reactor-grade UF/sub 4/ at ore-processing mills. (auth)
Date: September 30, 1957
Creator: Ellis, D.A.
Partner: UNT Libraries Government Documents Department
open access

SEMI-ANNUAL PROGRESS REPORT

Description: Progress is reported in studies on the metabolism, radiation dose, radiation effects, and toxic effects of prolonged expesure of dogs following injection of various doses 8/, Th/sup 228, and Sr/sup 90/ An imporved live dog gamma counter is described. (For preceding period see AECU 3522.) (C.H.)
Date: September 30, 1957
Partner: UNT Libraries Government Documents Department
open access

Semi-Annual Progress Report for the University of Utah Radiobiology Laboratory - September 30, 1957

Description: This is the semi-annual progress report of the Radiobiology Laboratory for the University of Utah College of Medicine. Published in 1957, this report touches on the workings of injection tables, the hematology report, the biochemistry report, and more.
Date: September 30, 1957
Creator: University of Utah. Radiobiology Laboratory.
Partner: UNT Libraries Government Documents Department
open access

Theoretical Determination of Low-Drag Supercavitating Hydrofoils and Their Two-Dimensional Characteristics at Zero Cavitation Number

Description: "The linearized theory of Tulin and Burkart for two-dimensional supercavitating hydrofoils operating at zero cavitation number is applied to the derivation of two new low-drag configurations. These sections were derived by assuming additional terms in the vorticity distribution of the equivalent airfoil; in particular, three and five terms were considered. A simplified calculation of the location of the cavity boundary streamline for arbitrary configurations is also presented" (p. 1).
Date: September 30, 1957
Creator: Johnson, Virgil E., Jr.
Partner: UNT Libraries Government Documents Department
open access

Transonic Investigation of an Axial-Flow Compressor Rotor With a Hub-Tip Ratio of 0.75 and Blades Having NACA A(Sub 2)I(Sub 8b) Mean Lines

Description: Report presenting a blade-element analysis of a compressor rotor with blade sections with NACA A(sub 2)I(Sub 8b) mean lines and 65-series thickness distributions in Freon-12 gas. Results regarding blade loss, angle of attack associated with minimum loss, peak efficiencies, and comparison with other transonic rotors are provided.
Date: September 30, 1957
Creator: Bernot, Peter T. & Savage, Melvyn
Partner: UNT Libraries Government Documents Department
open access

Analysis of two-stage-turbine efficiency characteristics in terms of work and speed requirements

Description: From Introduction: "In this report two-stage-turbine efficiency characteristics are analyzed as a function of work and speed requirements in terms of the effect of changing the required mean-section velocity diagram. The fundamental assumptions and limits used in reference 2 and 3 are also used herein."
Date: August 30, 1957
Creator: Stewart, Warner L. & Wintucky, William T.
Partner: UNT Libraries Government Documents Department
open access

Cyclotron resonance absorption by a hydrogen plasma

Description: From introduction: "The work described in this report was undertaken as part of an experimental study to determine the effectiveness of radiofrequency field in heating the ions of a hydrogen or deuterium plasma. The ultimate aim is to find a method of heating a deuterium plasma until an appreciable rate of nuclear reaction takes place."
Date: August 30, 1957
Creator: Chambers, Edmund S.
Partner: UNT Libraries Government Documents Department
open access

Effects of Internal-Area Distribution, Spike Translation, and Throat Boundary-Layer Control on Performance of a Double-Cone Axisymmetric Inlet at Mach Numbers From 3.0 to 2.0

Description: Report presenting an investigation to determine the effects of initial subsonic diffusion rate, variable geometry, and throat boundary-layer control on the performance of an axisymmetric double-cone inlet. Major gains in performance at higher Mach numbers were obtained with boundary-layer control in the form of a ram scoop at the throat. Results regarding the effect of internal-area distribution, effect of spike translation, and effect of throat boundary-layer control are provided.
Date: August 30, 1957
Creator: Connors, James F.; Lovell, J. Calvin & Wise, George A.
Partner: UNT Libraries Government Documents Department
open access

Effects of wing warp on the lift, drag, and static longitudinal stability characteristics of an aircraft configuration having an arrow wing of aspect ratio 1.86 at Mach numbers from 1.1 to 1.7

Description: Report presenting the results of a free-flight investigation to determine the effect of wing warp on the lift, drag, and static longitudinal stability characteristics of a low-drag aircraft with an arrow wing of aspect ratio 1.86. Results regarding the trim, drag, lift-drag ratios, and normal force and pitching moment are provided.
Date: August 30, 1957
Creator: Gillespie, Warren, Jr.
Partner: UNT Libraries Government Documents Department
open access

Free-flight investigation of jet effects at low supersonic Mach numbers on a fighter-type configuration employing a tail-boom assembly: longitudinal stability and trim

Description: Report presenting flight tests over a range of Mach numbers to study the effects of a simulated afterburning turbojet engine on the gross longitudinal flight characteristics of two geometrically identical models of a swept-wing fighter-type configuration. Results regarding the trim characteristics, lift, pitching moment, dynamic stability, and drag are provided.
Date: August 30, 1957
Creator: Jackson, Bruce G. & Crabill, Norman L.
Partner: UNT Libraries Government Documents Department
open access

Utilization of the Surface Tension of Liquid Metals in Making High-Vacuum Seals

Description: Abstract: "The free energy (surface tension) of a liquid film can withstand atmospheric pressure across a maximum theoretical gap of 10-(-3) cm between solids if the liquid wets and bridges the sides of the gap continuously. The eutectic alloy of Ga, lm and Sm is used for this purpose. This alloy is molten at room temperature with surface tension > 500 dynes/cm, vapor pressure < 10-(-8) cm at 500 C and excellent wetting properties. This alloy can be utilized in valves, motion seals, flanged joi… more
Date: August 30, 1957
Creator: Milleron, Norman
Partner: UNT Libraries Government Documents Department
open access

HRT-CP: Results of Solids Dissolution Tests

Description: A dissolution cycle in the chemical plant consists of refluxing with 10.8 M H2SO4 for 4 hours followed by refluxing for a like period with 4 M acid. In each of 3 tests in which 370 gram batches of simulated corrosion product solids were subjected to two dissolution cycles using 820 excess acid more than 99.6 of the solid material was dissolved (based on the amount of undissolved material collected). In another test using one dissolution cycle and 820 excess acid 99.5 of the solids material was … more
Date: July 30, 1957
Creator: Albrecht, W. L.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen