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Relative worth of improvements of fabrics

Description: Report presents an equation that connects all the major qualities of a fabric, from which the fabric may be rigidly designed with respect to maximum ultimate economy.
Date: January 1, 1917
Item Type: Report
Partner: UNT Libraries Government Documents Department

Relativistic Many-Body Bound Systems

Description: Report containing "[t]he principles and the mathematical details of a fully relativistic nuclear theory" (p. v). Appendix begins on page 124.
Date: 1975
Creator: Danos, Michael & Gillet, Vincent
Item Type: Report
Partner: UNT Libraries Government Documents Department

Relativistic Many-Body Bound Systems: Electromagnetic Properties

Description: Report presenting the formulae for the calculation of the electron scattering form factors, and of the static magnetic dipole and electric quadrupole moments, of relativistic many-body bound systems. The framework, given in NBS Monograph 147, is relativistic quantum field theory in the Schrodinger picture ; the physical particles, i.e. the solutions of the interacting fields, are given as linear combinations of the solutions of the free fields, called the parton fields. The parton-photon interaction is taken as given by minimal coupling, p -> p - eA ; in addition the contribution of the photon-vector meson vertex of the vector dominance model is derived.
Date: April 1977
Creator: Danos, Michael & Gillet, Vincent
Item Type: Report
Partner: UNT Libraries Government Documents Department

Reliable formulae for estimating airplane performance and the effects of changes in weight, wing area, or power

Description: This report contains the derivation and the verification of formulae for predicting the speed range ratio, the initial rate of climb, and the absolute ceiling of an airplane. Curves used in the computation are given in NACA-TR-171. Standard formulae for service ceiling, time of climb, cruising range, and endurance are also given in the conventional forms.
Date: January 1924
Creator: Diehl, Walter S.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Relief of residual stress in streamline tie rods by heat treatment

Description: About two-thirds of the residual stress in cold-worked SAE 1050 steel tie rods was relieved by heating 30 minutes at 600 degrees Fahrenheit. Cold-worked austenitic stainless-steel tie rods could be heated at temperatures up to 1000 degrees Fahrenheit without lowering the important physical properties. The corrosion resistance, in laboratory corrosion test, of straight 18:8 and titanium-treated 18:8 materials appeared to be impaired after heating at temperatures above 800 degrees or 900 degrees fahrenheit. Columbium-treated and molybdenum-treated 18:8 steel exhibited improved stability over a wide range of temperatures. Tie rods of either material could be heated 30 minutes with safety at any temperature up to 1000 degrees Fahrenheit. At this temperature most of the residual stress would be relieved.
Date: November 1, 1941
Creator: Pollard, R E & Reinhart, Fred M
Item Type: Report
Partner: UNT Libraries Government Documents Department

Remark on the theory of lifting surfaces

Description: First, the Weissinger method, as it applies to a rectangular wing,is discussed. By building on this framework it is shown how to treat the lift problem for any thin wing of arbitrary plan form.
Date: January 1, 1956
Creator: Muggia, Aldo
Item Type: Report
Partner: UNT Libraries Government Documents Department

Remarks on building of low-powered airplanes

Description: If the low-powered airplane is to be used advantageously by private individuals, the most important consideration is a smaller fuel consumption and, hence, a lower engine power. From experiments with gliders, it appears entirely possible, by utilizing ascending winds (on the weather side of mountains and those generated by the heat of the sun) and by employing engine flight intermittently, as required to fly long distances over land.
Date: January 1, 1924
Creator: Langsdorff, Werner V
Item Type: Report
Partner: UNT Libraries Government Documents Department

Remarks on the elastic axis of shell wings

Description: The definitions of flexural center, torsional center, elastic center, and elastic axis are discussed. The calculation of elastic centers is dealt with in principle and a suggestion is made for the design of shear webs.
Date: April 1, 1936
Creator: Kuhn, Paul
Item Type: Report
Partner: UNT Libraries Government Documents Department

Remarks on the Pressure Distribution over the Surface of an Ellipsoid, Moving Translationally Through a Perfect Fluid

Description: This note, prepared for the National Advisory Committee for Aeronautics, contains a discussion of the pressure distribution over ellipsoids when in translatory motion through a perfect fluid. An easy and convenient way to determine the magnitude of the velocity and of the pressure at each point of the surface of an ellipsoid of rotation is described. The knowledge of such pressure distribution is of great practical value for the airship designer. The pressure distribution over the nose of an airship hull is known to be in such good agreement with the theoretical distribution as to permit basing the computation of the nose stiffening structure on the theoretical distribution of pressure.
Date: June 1, 1924
Creator: Munk, Max M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Remarks on the Pressure Distribution over the Surface of an Ellipsoid, Moving Translationally Through a Perfect Fluid

Description: The pressure distribution over ellipsoids when in translatory motion through a perfect fluid is calculated. A method to determine the magnitude of the velocity and of the pressure at each point of the surface of an ellipsoid of rotation is described.
Date: December 1, 1979
Creator: Munk, Max M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

A Remote Indicating Hinge-Moment Balance, Special Report

Description: This report describes an electrical hinge-moment balance for use with wind-tunnel models of aircraft. A brief description of the principle of operation and operating experience with the balance is given in part I. Part II gives constructional details and part III gives theoretical considerations. Extensive constructional information is given to enable the reproduction of the equipment.
Date: August 1, 1941
Creator: Stoller, Morton J. & Ribner, Herbert S.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Remote Radiological Monitoring

Description: From abstract: A gamma-radiation telemetering system was utilized by Civil Effects Test Group personnel to measure fallout levels at the Nevada Test Site from the vicinity of Ground Zero out to, and including, an area bounded by Reno, Nevada; Salt Lake City, Utah; Kingman, Arizona; and Barstow, California.
Date: May 1, 1959
Creator: Sigoloff, Sanford C. & Borella, H. M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

The Remote Working Level Monitor. Final Report

Description: The Remote Working Level Monitor (RWLM) is an instrument used to remotely monitor the RN-daughter concentrations and the Working Level (WL). It is an ac powered, microprocessor based instrument which multiplexes two independent detector units to a single central processor unit (CPU). The CPU controls the actuation of the detector units and processes and outputs the data received from these remote detector units. The remote detector units are fully automated and require no manual operation once they are set up. They detect and separate the alpha emitters of RaA and RaC' as well as detecting the beta emitters of RaB and RaC. The resultant pulses from these detected radioisotopes are transmitted to the CPU for processing. The programmed microprocessor performs the mathematical manipulations necessary to output accurate Rn-daughter concentrations and the WL. A special subroutine within the program enables the RWLM to run and output a calibration procedure on command. The data resulting from this request can then be processed in a separate program on most computers capable of BASIC programming. The calibration program results in the derivation of coefficients and beta efficiencies which provides calibrated coefficients and beta efficiencies.
Date: November 18, 1977
Creator: Keefe, Donald J.; McDowell, William P. & Groer, Peter G.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Removal of Scale-Forming Compounds from Sea Water

Description: From Recommendations: "Laboratory research on the process for descaling sea water should be continued to improve the process and thereby lower the cost. Research efforts should be concentrated on methods for producing low cost sodium phosphates (needed for the precipitation of the scale-forming elements) from fertilizer grade phosphates and on increasing the crystalline nature of the phosphate precipitates (to reduce dewatering costs). The descaled sea water should be experimentally evaluated first in the laboratory and later under actual operating conditions so that its value to the water recovery program may be established."
Date: February 1962
Creator: W.R. Grace & Co.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Removal of Scale-Forming Compounds from Sea Water

Description: From introduction: "In the process of being developed under Contract No. 14-01-001-202 fertilizer grade phosphoric acid (or sodium phosphates obtained from reacting phosphoric acid and sodium hydroxide or soda ash) is mixed with sea water. The subsequent addition of ammonia causes the precipitation of solids which are then allowed to settle from water. The resulting descaled sea water is now ready for utilization in a water recovering plant."
Date: September 1962
Creator: W.R. Grace & Co.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Removal of Sodium from Core Subassemblies with White Oil and Ultrasonics

Description: Report issued by the APDA over methods "for removing sodium from fuel and blanket sub-assemblies that have been irradiated in the reactor of the Enrico Fermi Atomic Power Plant" (p. 3). The cleaning methods are described, as well as experimental studies conducted on them. This report includes illustrations, and photographs.
Date: 1961
Creator: Kanaan, Z. R. & Nash, C. R.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Removal of Soot from Furnaces and Flues by the Use of Salts or Compounds

Description: From Objects of Investigation: "The main object of the investigation covered by this report was to determine whether there was truth in the popular belief and whether the compounds sold accomplished any part of what the makers claimed."
Date: 1932
Creator: Nicholls, P. & Staples, C. W.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Removal of the Lighter Hydrocarbons from Petroleum by Continuous Distillation: with Especial Reference to Plants in California

Description: From Introduction: "The purpose of this bulletin is to describe the methods of constructing and operating representative types in the United States used for removing the light hydrocarbons from petroleum by continuous distillation, such plants being commonly known in the trade as topping or skimming plants."
Date: 1919
Creator: Wadsworth, J. M.
Item Type: Report
Partner: UNT Libraries Government Documents Department