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  • 1
    Electronic Resource
    Electronic Resource
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 10 (1988), S. 106-110 
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Assessing the fire hazard of a material has three facets: (a) the generation of heat and combustion products; (b) their transport to the vicinity of the building occupant; and (c) the response of each subject to specific exposures. In this study, interest has focused on the aspect of HCl decay. Two models for HCl generation, transport, and decay have been developed: an empirical and a rigorous model. Both have been applied to predict the behavior of HCl in small and large scale fire experiments. The rigorous model accounts for primary variables (humidity and type and extent of surface) in such a way that it is essentially independent of scale and specific geometry. The results show that the fire hazard of chlorinated materials is exaggerated unless HCl decay is considered.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 22 (1984), S. 2923-2930 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A soap/alcohol miniemulsion in combination with an homogenized mixture of monomer and initiator is utilized to generate PVC plastisol. Droplet distributions generated consist of two distinct types. Judicious control of soap-to-alcohol ratio allows control of the number and size of the smaller droplet family; homogenization and initiator water solubility affect the other. Final latex particle distribution may be unimodal or bimodal depending upon manipulation of these factors.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 22 (1984), S. 2931-2939 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Growth of two droplet families and a polymer seed family as a function of percent monomer conversion in PVC miniemulsion synthesis demonstrates that polymerization in droplets predominates to ∼ 30-40% conversion, whereupon polymerization of seed becomes favored. This difference appears to be due to a liquid-to-solid phase change in the forming particles during the course of polymerization.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 2005-11-30
    Description: The locations of various parts of the Surveyor camera are presented. Tables were prepared with emphasis on: (1) exterior parts and surfaces that are directly exposed to space, (2) parts that shield others from space radiation, (3) representative or unique materials, and (4) electronic devices that may contain unique or well-characterized materials.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 278-283
    Format: text
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  • 5
    Publication Date: 2005-11-30
    Description: The Surveyor 3 material analysis plan is composed of a series of comprehensive charts of all science and engineering investigations reported. The plan progresses from left to right on each figure. Each test was designed to ensure that the subsequent tests would not be significantly affected by those that preceded it. Each box represents one or more tasks performed by the individual or firm named at the lower left. The upper-right corner shows the amount and type of material subjected to the test or tests listed within the box.
    Keywords: SPACE SCIENCES
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 261-277
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  • 6
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    In:  CASI
    Publication Date: 2005-11-30
    Description: A summary is presented of the engineering and scientific results derived from the investigations conducted on the returned Surveyor 3 hardware, lunar soil, and photographs taken by the Apollo 12 astronauts.
    Keywords: SPACE SCIENCES
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 9-13
    Format: text
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  • 7
    Publication Date: 2005-11-30
    Description: Measured spectral reflectance, evidence obtained from photographs, scanning electron microscopy, and previous work on Surveyor hardware were used to develop an understanding of the observed discoloration and its meaning to future space and lunar operations. Measured reflectance data were analyzed to separate and understand the effects of lunar dust and radiation damage. It was concluded that organic contamination is not a major contributor to the discoloration. Radiation-induced discoloration on the various surfaces was found to be proportional to the degree of solar illumination. Photobleaching of the radiation damage was observed and was responsible for a gradual change in the color of the camera's surface during the evaluation.
    Keywords: SPACE SCIENCES
    Type: NASA, Washington Analysis of Surveyor 3 Mater. and Phot. Returned by Apollo 12; p 23-28
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  • 8
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    Unknown
    In:  CASI
    Publication Date: 2006-10-26
    Description: White coatings for spacecraft, and ultraviolet and proton radiation effects
    Keywords: THERMODYNAMICS AND COMBUSTION
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  • 9
    Publication Date: 2011-08-18
    Description: It is pointed out that products from extraterrestrial materials can play a major role in future space operations within the useful lifetime of the first major space station, now in the planning stage. Possible economic advantages regarding the use of such products could be related to the recognition that it takes seven times more energy to get one kilogram from the earth's surface to low earth orbit (LEO) than it does to move one kilogram from the moon's surface to LEO. An analysis regarding the margin of advantage of extraterrestrial materials as been conducted, taking into account equipment and supplies which ust be launched from earth to make the acquisition of extraterrestrial products feasible. The present investigation is concerned with a study of engineering practicality. Attention is given to the transport of processing equipment from LEO to the lunar surface and of lunar products to LEO and the geosynchronous orbit. It is found that lunar oxygen and radiation shielding could possibly be utilized by the turn of the century.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: Astronautics and Aeronautics (ISSN 0004-6213); 21; June 198
    Format: text
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  • 10
    Publication Date: 2018-12-01
    Description: Spacecraft surface temperature-control coating requirements, selection and performance in prelaunch and space environments
    Keywords: SPACE VEHICLES
    Format: text
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