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Article
Accuracy and resolution issues in NO/acetone PLIF measurements of gas-phase molecular mixing
Under-resolved passive-scalar measurements in liquid and gaseous shear layers have been known to over-predict mixed-fluid quantities as a result of sub-resolution stirring. In recent studies, simultaneous col...
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Article
Yield and fracture behaviour of cross-linked epoxies
The yield stress and fracture energies of a series of cross-linked epoxy resins were studied in order to correlate the macroscopic mechanical properties with the polymer microstructure. Five networks with vary...
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Article
Mass spectrometric measurement of zeatin glycoside levels in Vinca rosea L. crown gall tissue
The range of zeatin glycosides found in crown gall tissue of Vinca rosea L. has been quantified using a mass spectrometric isotope dilution procedure. Problems in the quantitative analysis of cytokinins in plant ...
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Article
Gibberellins in mature apple seeds — contaminants?
Evidence is presented that gibberellins A4 and A7, previously identified (Sinska, I., Lewak, St., Gaskin, P., MacMillan, J., Planta 114, 359–364, 1973) in extracts of mature apple (Pyrus malus L.) seeds, were pre...
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Article
Temperature effects on fatigue crack growth in polycarbonate
The fatigue behaviour of a high strength thermoplastic, polycarbonate, has been investigated as a function of temperature. Fatigue crack growth properties were measured in the temperature range of 100 to 373 K...