Publications

Bird, TS 1979, 'Mode coupling in a planar circular waveguide array', IEE Journal on Microwaves, Optics and Acoustics, vol. 3, no. 5, pp. 172-172.
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Heiman, JL, Bakoss, SL, Burfitt, AJ & Cridland, L 1979, 'MEASURED AND PREDICTED AXIAL STRAINS AND DEFORMATIONS IN A COLUMN OF A TALL REINFORCED CONCRETE BUILDING.', National Conference Publication - Institution of Engineers, Australia, no. 79 /9, pp. 44-51.
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A site investigation was carried out to determine the axial deformations of a column in a tall reinforced concrete building. Strains were measured in the column concrete using vibrating wire gauges and the column deformations were measured by precise levelling. In addition to strain measurements on standard laboratory shrinkage and creep specimens, strain data was obtained from tests that related more closely to the site conditions. Appreciable differences occurred between shrinkage and creep strains measured in the laboratory and some of those obtained by methods given in codes. Shortcomings were found in some of the equations used to predict long-term creep strains from laboratory data and a hyperbolic equation was developed that enabled more accurate predictions to be made. Measured strains in the column were compared with predicted values obtained by two calculation methods and good agreement was obtained.

Shannon†, AG 1979, 'Mathematical attitudes and semantic differentials', International Journal of Mathematical Education in Science and Technology, vol. 10, no. 4, pp. 497-507.
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The semantic differential-one approach to attitude measurement- basically records a combination of a person's associations with a particular concept with a scaling procedure. This paper considers the implications of such a device for teachers of mathematics. © Taylor & Francis Group, LLC.