THERMAL DECOMPOSITION OF WOOD IN AN INERT ATMOSPHERE
Thermal decomposition of wood in inert atmosphere
INERT GAS↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Environmental and physical effects on the response of balsa wood as an energy dissipator
Environmental and physical effects on balsa wood response as energy dissipation material for protecting spacecraft during lunar or planetary landings
WOOD↗
Environmental and physical effects on the response of balsa wood as an energy dissipator
Temperature, pressure, moisture content, and density effects on energy dissipating properties of balsa wood
PHYSICAL PROPERTY↗
Effects of decontamination, sterilization, and preconditioning treatments on energy- dissipating properties of balsa wood
Decontamination, sterilization, and preconditioning effects on energy dissipating properties of balsa wood
ENERGY DISSIPATION↗
Physical and environmental effects on the energy dissipating characteristics of balsa wood.
Physical and environmental effects on energy dissipation characteristics of balsa wood
PRESSURE EFFECT↗
Wood versus metal in airplane construction
The aim of this article is to present, in broad outline, a scientific method for solving the problem, "Wood or Metal." It will be shown that structural methods have by no means reached their final perfection. The strength of the different materials is discussed as well as different construction methods.
WOOD VS METAL↗
Curing of resin-wood combinations by high-frequency heating
Explore the source record for details and available documents.
WOODS - CURING↗
Effects of sterilization on the energy-dissipating properties of balsa wood
Technical report on the effects of sterilization on the energy-dissipating properties of balsa wood is given. Sterilization by ethylene oxide plus heat enhances the average specific energy of balsa while plastic impregnation followed by irradiation-induced polymerization does not.
Sorkin, A. B.↗
Effects of Sterilization on the Energy- Dissipating Properties of Balsa Wood
Impact properties of balsa wood in sterilized, dry and humid conditions
Sorkin, A. B.↗
Inelastic scattering calculations with Wood- Saxon Hartree-Fock wave functions.
Inelastic scattering cross sections calculated, comparing results for various nuclear states expressed as Wood-Saxon radial and harmonic oscillator functions
Bar-Touv, J.↗
Attenuation of aircraft noise by wood-sided and brick-veneered frame houses
Jet aircraft noise attenuation characteristics of wood-sided and brick-veneered frame houses
Young, J. R.↗
Hartree-Fock calculations with Wood-Saxon basis functions
Hartree-Fock method to study doubly even nuclei in 2s-1d shell, generating basis functions by Wood-Saxon well
Braley, R. C.↗
Phenolic aldehydes - Generation from fossil woods and carbonaceous sediments by oxidative degradation
Phenolic aldehydes generated from lignin in fossil woods and carbonaceous sediments by oxidative degradation
Barghoorn, E. S.↗
Projected Hartree-Fock spectra with Wood- Saxon basis functions
Investigating short-range behavior of wave function by comparing projected Hartree-Fock spectra using basis functions having harmonic oscillator and Wood-Saxon radial dependence
Braley, R. C.↗
Projected Hartree-Fock spectra with Wood- Saxon basis functions
Projected Hartree-Fock energy spectra using basis wave functions with harmonic oscillator and Wood-Saxon radial dependence
Braley, R. C.↗
A theoretical and experimental study of wood planer noise and its control
A combined analytical and experimental study of wood planer noise is made and the results applied to the development of practical noise control techniques. The dominant mechanisms of sound generation are identified and an analysis is presented which accurately predicts the governing levels of noise emission. Planing operations in which the length of the board is much greater than the width are considered. The dominant source of planer noise is identified as the board being surfaced, which is set into vibration by the impact of cutterhead knives. This is determined from studies made both in the laboratory and in the field concerning the effect of board width on the resulting noise, which indicate a six decibel increase in noise level for each doubling of board width. The theoretical development of a model for board vibration defines the vibrational field set up in the board and serves as a guide for cutterhead redesign.
Stewart, J. S.↗
Fire-resistant wood composites
Hot pressed wood panels made with modified novolak resins have burnthrough time of 450 s as compared to 280 s for products using conventional novolak resins. Incorporation of inorganic filler reduces flame spread index of panels from more than 200 to 60 or 70.
Sawko, P. M.↗
Energy from wood waste - A case study
A joint study has been conducted by NASA and Army installations collocated in a dense forest in southwestern Mississippi in order to determine the technical and economic feasibility of using wood waste as a renewable energy source. The study has shown that, with proper forest management, the timber on government lands could eventually support the total energy requirements of 832 billion Btu/yr. Analysis of the current conversion technologies indicates that the direct combustion spreader stoker approach is the best demonstrated technology for this specific application. The economics of the individual powerplants reveal them as attractive alternatives to fossil fueled plants. Environmental aspects are also discussed.
Scola, R.↗