Ball, JE & Williams, BJ 1984, 'Characteristic schemes using fixed spatial grids.'.
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Characteristic schemes for the solution of the Saint Venant equations for unsteady flow in a fixed bed prismatic open channel without lateral inflow were examined. The study was restricted to schemes using a fixed spatial grid requiring interpolation between the characteristics and the grid. Five solution techniques which differed in their interpolation procedure and order of finite difference approximation were developed. The accuracy of the water level and flow rate predicted by each solution technique for different grid spacing were compared and mass balances were computed for each technique. (A)
Debroy, A, Nandy Mazumdar, S, Barua, PD & Mahajan, MP 1984, 'Desulfurization of N,N′-Diarylthioureas by Lead Tetraacetate Oxidation', Bulletin of the Chemical Society of Japan, vol. 57, no. 1, pp. 315-316.
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Abstract Lead tetraacetate oxidation of N,N′-diarylthioureas in refluxing dichloromethane and pyridine gave the corresponding N,N′-diarylureas. Sulfur was isolated during each oxidation reaction.
Ball, JE & Williams, BJ 1970, 'CHARACTERISTIC SCHEMES USING FIXED SPATIAL GRIDS.', National Conference Publication - Institution of Engineers, Australia, I.E.Aust. Nat. Conf. Pub. No. 84/7, Barton, Adelaide, Australia, pp. 24-28.
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Characteristic schemes for the solution of the Saint Venant equations for unsteady flow in a fixed-bed prismatic open channel without lateral inflow were examined. The study was restricted to schemes using a fixed spatial grid requiring interpolation between the characteristics and the grid. Five solution techniques which differed in their interpolation procedure and order of finite difference approximation were developed. The accuracy of the water level and flow rate predicted by each solution technique for different grid spacings were compared and mass balances were computed for each technique.
Roper, H, Baweja, D & Kirkby, G 1970, 'TOWARDS A QUANTITATIVE MEASURE OF DURABILITY OF CONCRETE STRUCTURAL MEMBERS.', Publication SP - American Concrete Institute, pp. 639-658.
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Brief consideration is given to the uses of a quantitative measure of durability of concrete structural members. A classification scheme of structures, elements, and causes and effects is reviewed by the use of examples. Any quantitative measure of durability of in-situ structural members must be based on data gathered using non-destructive test methods. For any phenomenon such as cracking, corrosion or spalling which influences durability, three factors must be considered, a method of measurement of the phenomenon, the intensity of the phenomenon, and its distribution over the observed area.
