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The Ultra-Violet and Visible Transmission of Various Colored Glasses

Description: Technical paper issued by the Bureau of Standards over studies conducted on transmissions of ultra-violet energy through different colored glasses. As stated in the introduction, "in the present paper are given the transmissions for the visible and ultra-violet of a large number of glasses, mostly colored, which are not used primarily for eye protection, but which are useful for various other purposes" (p. 3). This paper includes illustrations, and photographs.
Date: March 19, 1920
Creator: Gibson, K. S.; Tyndall, E. P. T. & McNicholas, H. J.
Partner: UNT Libraries Government Documents Department
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Effect of nozzle design on fuel spray and flame formation in a high-speed compression-ignition engine

Description: "Fuel was injected from different type of injection nozzles into the combustion chamber of the NACA combustion apparatus, operated as a compression-ignition engine. High speed motion pictures were taken of the fuel sprays and combustion. Single-orifice nozzles of 0.008, 0.020, and 0.040 inch diameter, and multiorifice nozzles having 2, 6, and 16 orifices were tested. Nozzles having impinging jets and slit orifices were also included" (p. 327).
Date: March 19, 1936
Creator: Rothrock, A. M. & Waldron, C. D.
Partner: UNT Libraries Government Documents Department
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Critical amounts of uranium compounds

Description: No Description Available.
Date: March 19, 1943
Creator: Konopinski, E.; Metropolis, N.; Teller, E. & Woods, L.
Partner: UNT Libraries Government Documents Department
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Critical Amounts of Uranium Compounds

Description: The method of calculation of critical masses of oxides and fluorides of uranium is given. The geometry assumed is a sphere and the calculations hold only in the absence of hydrogenous materials. Calculations are carried out which are applicable to materials containing from 20 to 100% U235.
Date: March 19, 1943
Creator: Konopinski, Emil Jan, 1911-; Metropolis, N. (Nicholas), 1915-1999; Teller, Edward, 1908-2003 & Woods, L.
Partner: UNT Libraries Government Documents Department
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The U + 4 - U02 ++ Couple in H2SO , and the U + S - u + 4 Couple in HCl

Description: Technical report: Measurements have been made on the equilibrium between Cu, Cu2+, U4+, and UO22+ in H2SO4 in an attempt to establish the value of the U4+ - UO22+ couple potential. The value of the formal potential for the U3+ - U4+ couple in 1N HCl at 0 degrees C was determined to be + 0.65 v.
Date: March 19, 1946
Creator: Cubicciotti, D.
Partner: UNT Libraries Government Documents Department
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Evaluation of Gust and Draft Velocities from Flights of P-61C Airplanes Within Thunderstorms August 14, 1946 to August 15, 1946 at Orlando, Florida

Description: "Tables I and II of the present paper summarize the gust and draft velocity data for thunderstorm-flights 21 and 22 of August 14, 1946 and August 15, 1946, respectively. These data were evaluated from records of NACA airspeed-altitude and acceleration recorders installed in P-61C airplanes and are of the type presented for previous flights. Table III summarizes the readings of a milliammeter which was used in conjunction with other equipment to indicate ambient-air temperature during thundersto… more
Date: March 19, 1947
Creator: Tolefson, H. B.
Partner: UNT Libraries Government Documents Department
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Expected Formation of Heavy Isotopes in the Proposed Clinton Heterogenous Pile

Description: The purpose of this memo is to calculate the expected amounts of heavy isotopes present in the material removed from the reactor of the heterogenous pile after various cycles of operation. The primary heavy isotope expected to form in the Clinton Heterogeneous Pile (also known as the X-10 Graphite Reactor) was Plutonium-239. The reactor's main purpose, as part of the Manhattan Project, was to serve as a pilot plant for the production and chemical separation of plutonium for use in nuclear weapo… more
Date: March 19, 1947
Creator: Ott, H. C. & English, S. B.
Partner: UNT Libraries Government Documents Department
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Force Tests of a 1/5-Scale Model of the McDonnell XP-85 Airplane with Conventional Tail Assembly in the Langley Free-Flight Tunnel

Description: "At the request of the Air Materiel Command, Army Air Forces an investigation of the low-speed, power-off stability and control characteristics of the McDonnell XP-85 airplane is being conducted in the Langley free-flight tunnel. The XP-85 airplane is a parasite fighter carried in a bomb bay of the B-36 airplane. As a part of the investigation a few force tests were made of a 1/5 scale model of the XP-85 with a conventional tail assembly installed in place of the original design five-unit tail … more
Date: March 19, 1947
Creator: Paulson, John W. & Johnson, Joseph L.
Partner: UNT Libraries Government Documents Department
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Preliminary Evaluation of the Low-Speed Stability and Control Characteristics of the McDonnell XP-85 Airplane from Tests of an Unballasted 1/5-Scale Model in the Langley Free-Flight Tunnel

Description: "At the request of the Air Material Command, Army Air Forces an investigation of the low-speed, power-off stability and control characteristics of the McDonnell XP-85 airplane is being conducted in the Langley free-flight tunnel. The XP-85 airplane is a jet propelled, parasite fighter with a 34 deg sweepback at the wing quarter chord. It was designed to be carried in a bomb bay of the B-36 air plane. The first portion of the investigation consists of a preliminary evaluation of the stability an… more
Date: March 19, 1947
Creator: Paulson, John W. & Johnson, Joseph L.
Partner: UNT Libraries Government Documents Department
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Results of preliminary flight investigation of aerodynamic characteristics of the NACA two-stage supersonic research model RM-1 stabilized in roll at transonic and supersonic velocities

Description: Report presenting the design of a two-stage, solid-fuel, rocket-propelled, general research pilotless aircraft suitable for investigating stability and control at supersonic velocities. The flight test investigation is described and information is provided for zero-length launchers and operational flight-test techniques of two-stage rockets. Results regarding launching characteristics and lateral stabilization and control flight tests are provided.
Date: March 19, 1947
Creator: Pitkin, Marvin; Garner, William N. & Curfman, Howard J., Jr.
Partner: UNT Libraries Government Documents Department
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An Analysis of the Effects of Aeroelasticity on Static Longitudinal Stability and Control of a Swept-Wing Airplane

Description: From Introduction: "The results of the aforementioned study are presented in this report together with the method of analysis employed. The net stability change is shown together with the individual contributions due to flexibility of wing, tail, and fuselage, both including and neglecting the effect of inertial loads."
Date: March 19, 1951
Creator: Skoog, Richard B.
Partner: UNT Libraries Government Documents Department
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Strain-Gage Measurements of Buffeting Loads on a Jet-Powered Bomber Airplane

Description: Buffet boundaries, buffeting-load increments for the stabilizers and elevators, and buffeting bending-moment increments for the stabilizers and wings as measured in gradual maneuvers for a jet-powered bomber airplane are presented. The buffeting-load increments were determined from strain-gage measurements at the roots or hinge supports of the various surfaces considered. The Mach numbers of the tests ranged from 0.19 to 0.78 at altitudes close to 30,000 feet. The predominant buffet frequencies… more
Date: March 19, 1951
Creator: Aiken, William S., Jr. & See, John A.
Partner: UNT Libraries Government Documents Department
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Method for Calculation of Laminar Heat Transfer in Air Flow Around Cylinders of Arbitrary Cross Section (Including Large Temperature Differences and Transpiration Cooling)

Description: "The solution of heat-transfer problems has become vital for many aeronautical applications. The shapes of objects to be cooled can often be approximated by cylinders of various cross sections with flow normal to the axis as, for instance heat transfer on gas-turbine blades and on air foils heated for deicing purposes. A laminar region always exists near the stagnation point of such objects. A method previously presented by E. R. G. Eckert permits the calculation of local heat transfer around t… more
Date: March 19, 1952
Creator: Eckert, E. R. G. & Livingood, John N. B.
Partner: UNT Libraries Government Documents Department
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Casting of Blanket Bricks, Ring, Plug, and Control Rods for the Experimental Breeder Reactor (CP-4)

Description: The cup assembly of the Experimental Breeder Reactor (EBR) consists of blanket bricks, inner rings, and safety plug, all of natural uranium. The design of the finish machined brick is shown in Figure 1. These pie shaped bricks when stacked together, 12 bricks arranged in circular form and stacked seven rings high, comprise the cylindrical portion of the outer blanket, 17.875" I.D. x 30.875" O.D. after machining and canning. The inner ring, which is shown in Figure 2, fits inside the bottom laye… more
Date: March 19, 1953
Creator: Macherey, Robert E.
Partner: UNT Libraries Government Documents Department
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A flight comparison of a submerged inlet and a scoop inlet at transonic speeds

Description: Report presenting flight tests conducted on two different inlet configurations, a submerged divergent-wall inlet and scoop inlet, to determine their characteristics when installed on a YF-93 airplane. Measurements were made of the pressure-recovery characteristics of the inlets and overall airplane drag for each configuration. Results regarding the induction-system efficiency, airplane drag, and a relative comparison of the inlet installations are provided.
Date: March 19, 1953
Creator: Rolls, L. Stewart
Partner: UNT Libraries Government Documents Department
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Report of the Thirty-Seventh National Conference on Weights and Measures, 1952

Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: March 19, 1953
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department
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Sodium dichromate as a process water additive: An evaluation

Description: For several years-after the start-up of the Hanford Piles, little concern was felt for the quality of process water. Techniques developed by CMX and improved in the course of operating experience were substantially successful for controlling and removing pressure drop film; and corru%ion rates at the early power levels were uniformly low and not a matter of concern, particularly since slugs were not exposed for more than 250 MWD/ton. As power and exposure levels were drastically increased, howe… more
Date: March 19, 1953
Creator: Lutton, J. M.
Partner: UNT Libraries Government Documents Department
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Effects of two spinner shapes on the pressure recovery in an NACA 1-series D-type cowl behind a three-blade propeller at Mach numbers up to 0.80

Description: Report presenting an investigation to determine the effects of two spinner shapes on the pressure recovery in an NACA 1-series D-type cowl behind a three-blade propeller with fairly thick shanks. Data were obtained at a range of Mach numbers, inlet velocity ratios, blade angle ratios, and a specified Reynolds number.
Date: March 19, 1954
Creator: Reynolds, Robert M. & Molk, Ashley J.
Partner: UNT Libraries Government Documents Department
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Some Aspects of the Radial Stability in a Magnetic Mirror Machine

Description: Abstract: "The radial motion of an ion in an axially symmetric magnetic field is discussed. It is pointed out that particles of constant velocity have clearly defined upper limits to their radial motion. This is a result of the other constant of the motion, the canonical angular momentum. These limits are independent of the number of times an ion is reflected from the mirrors, providing the field is truly axially symmetric."
Date: March 19, 1954
Creator: Henrich, Louis R.
Partner: UNT Libraries Government Documents Department
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A Wind-Tunnel Investigation of Bomb Release at a Mach Number of 1.62

Description: Memorandum presenting a model bomb-release investigation conducted in the 9-inch supersonic tunnel at a Mach number of 1.62 to determine what first-order interference effects are involved in making releases at supersonic speeds and, in some cases, to ascertain what modifications might be made to obtain near-level drops. The results of these tests indicate that the interference effects of the fuselage or wing-pylon upon the bomb release are, in most cases, adverse.
Date: March 19, 1954
Creator: Rainey, Robert W.
Partner: UNT Libraries Government Documents Department
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Crack Sensitivity of Type 308L & 347 Metal Arc Weld Deposits

Description: The tendency for Austenitic Stainless Steels to develop cracks may be considered to be a function of several variables. Chemical composition of the electrode and base metal, are variables which have been reported to greatly influence the final behavior of the weld. Two types of electrodes, Type 308L and Type 347, were compared with respect to their respective crack sensitivities. Also, comparative results were desired between the 308L-15 (DC) and 308L-15 (AC-DC) type electrodes. At present, no … more
Date: March 19, 1956
Creator: Smith, W. R.; Lemon, L. C. & Sako, J. H.
Partner: UNT Libraries Government Documents Department
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