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  • 1
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A statistical study of fires in the United Kingdom involving the ignition of furniture and furnishings is presented. This paper examines the data for one year (1970). The analysis shows that in fires starting in furniture and furnishings the chance of a fatality is over twice that in other domestic fires. The majority of furniture fires involve upholstery or bedding and over 90% were started by smokers' materials, electric appliances, space heating or as the result of the activities of children or suspected arsonists. Eighty-five percent of the fatalities were found in the room of origin of the fire. Eighty per cent were overcome by smoke or toxic gases. Sixty percent of the fatalities were either under 5 or over 65 years of age. Monetary values are assigned for damage, casualties and deaths in fire. These costs can be used to assess the value of fire precautions. With the values taken, the total losses in furniture fires in the home amounted to £19 million in 1970. Life loss accounted for the major part of this sum. The expected annual loss per dwelling as a result of the ignition of furniture is thus only about £1, and is only £3 for all dwelling fires. This low figure suggests an approach of either selective spending on those most at risk (the elderly and handicapped) or by government activity through publicity and education.
    Additional Material: 11 Tab.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Biopolymers 11 (1972), S. 2147-2169 
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The banding density of phage lambda varies with the activity of water when the phage particles are banded in a series of different cesium salts. The results are comparable to those Hearst and Vinograd for free DNA. Lambda phage ghosts show less net hydration than the phage particles and band in a fairly narrow range of densities in these cesium salts. The phage banding density may be predicted to a first approximation by a simple additive approximation: the total net hydration of the phage is approximately equal to the net hydrations of free λ DNA λ hosts, all measured at the same water activity. The simple additive approximation is not adequate, however, to explain the banding density differences between a deletion mutant and phage lambda in the different cesium salts. The density differences evidently are sensitive to second-order effects: they apparently are affected by a restriction of DNA hydration inside the phage head, which depends both on water activity and on DNA length (or free volume inside the phage head). This becomes a striking effect in Cs2SO4 solutions where the net DNA hydration is large. Changing the phage banding density by substituting 5-bromouracil for thymine, which increases the DNA mass while leaving the DNA volume relatively unchanged, gives results consistent with a restriction of the net DNA hydration that depends on the DNA volume. Data on the sedimentation velocity behavior that λ and λb2 in diferrent salts are presented and discussed. It appears possible to estimate the size of a DNA deletion from the phage sedimentation coefficient.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Biopolymers 11 (1972), S. 2171-2177 
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Density gradient analysis of purified lambda phage particles after storage reveals that minor species with new banding desities arise during storage. These have densities expected for phage-ghost clusters containing integra rations of ghosts to phage particles. A lage numbersof new banding species has been observed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 4 (1972), S. 277-292 
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Previous studies by Buckler and Norrish of the second limit of CO and O2 mixtures containing small amounts (0.25-10%) of H2 have been used to obtain the velocity constant of the reaction \documentclass{article}\pagestyle{empty}\begin{document}$${\rm O} + {\rm CO} + {\rm M = CO}_{\rm 2} + {\rm M}$$\end{document} These estimates of k33 = 3.9 × 108 and 3.5 × 108 liter2 mole-2 sec-1 (M = H2) at 500° and 560°C, respectively, have been combined with other estimates over the range 300°-3500°K to give k33 = 3.0 × 108 exp (-3000/RT) for M = Ar; the considerable scatter in the available points does not encourage any great confidence in this expression and may be attributed at least partly to the different molecules used as M by different workers. For KCl-coated and CsCl-coated vessels at 540°C, studies of the second limit of H2 + O2 mixtures, to which CO has been added, have indicated that with both the surfaces, the effect of CO on the limit is masked by changes in the surface nature. In the case of CsCl, the results have enabled a lower limit of about 0.6 to be obtained for the efficiency of CO relative to H2 in the reaction \documentclass{article}\pagestyle{empty}\begin{document}$${\rm H} + {\rm O}_{\rm 2} + {\rm M = HO}_{\rm 2} + {\rm M}$$\end{document} Use of a computer treatment to interpret the second limit of CO + H2 + O2 mixtures in aged boric-acid-coated vessels at 500°C gives a value of mCO = 0.74 ± 0.04 together with an estimate of k32 (H + CO + M″ = HCO + M″)/k4 = 0.022 ± 0.003, which leads to k32 = 2.3 × 108 liter2 mole-2 sec-1 (M = H2) at 500°C.
    Additional Material: 5 Ill.
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  • 5
    Publication Date: 2013-08-31
    Description: A method used to generate thermal sparks for experimental purposes and methods by which parameters of the sparks, such as speed, size, and temperature, were measured are described. Values are given of the range of such parameters within these spark showers. Titanium sparks were used almost exclusively, since it is particles of this metal which are found to be ejected during simulation tests to carbon fiber composite (CFC) joints. Tests were then carried out in which titanium sparks and spark showers were injected into JP4/(AVTAG F40) mixtures with air. Single large sparks and dense showers of small sparks were found to be capable of causing ignition. Tests were then repeated using ethylene/air mixtures, which were found to be more easily ignited by thermal sparks than the JP4/ air mixtures.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA. Kennedy Space Center, The 1991 International Aerospace and Ground Conference on Lightning and Static Electricity, Volume 2; 10 p
    Format: application/pdf
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