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Nokukhanya Mthembu, Romano Lottering and Heyns Kotze
Leaf area index (LAI) is an important parameter in plant ecophysiology; it can be used to quantify foliage directly and as a measure of the photosynthetic active area and, thus, the area subject to transpiration in vegetation. The aim of this paper was t...
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K.S. Wang and P.S. Heyns
Pág. 1325 - 1347
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B.H. Freyer, N.J. Theron, and P.S. Heyns
Pág. 999 - 1019
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H. Jurgens Wolfaardt and P. Stephan Heyns
Pág. 451 - 467
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Johan M. Cronjé, P. Stephan Heyns, Nico J. Theron, and Philip W. Loveday
Pág. 381 - 396
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C. Scheffer, P. S. Heyns
Pág. 35 - 44
New developments in sensor technology, signal processing and control systems can result in more efficient manufacturing. Not all new process monitoring and optimisation schemes have yet been implemented. In this article, an extensive survey of rec...
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P. J. Heyns,W. D. Hamman,E. V.D.M. Smit
AbstractThis article follows the methodology employed by Sloan to evaluate whether share prices fully reflect the information about future earnings contained in the cash flow and accruals components of current earnings. The first hypothesis predicted tha...
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Vegter, N.M.; Sandenbergh, R.F.; Prinsloo, L.C.; Heyns, A.M.
Pág. 545 - 550
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