Effect of sunlight and shade on norisoprenoid levels in maturing Weisser Riesling and Chenin blanc grapes and Weisser Riesling wines

J Marais, CJ Van Wyk, A Rapp - 1992 - scholar.sun.ac.za
The effect of sunlight, shade and degree of ripeness on potentially volatile C13-norisoprenoid
concentrations in Weisser Riesling grapes and wines and in Chenin blanc grapes, was …

An -Time Algorithm for Triangulating a Simple Polygon

RE Tarjan, CJ Van Wyk - SIAM Journal on Computing, 1988 - SIAM
Given a simple n-vertex polygon, the triangulation problem is to partition the interior of the
polygon into $n - 2$ triangles by adding $n - 3$ nonintersecting diagonals. We propose an $O(…

Some volatile aroma components of Vitis vinifera L. cv. Sauvignon blanc

PH Augustyn, A Rapp, CJ Van Wyk - South African Journal of …, 1982 - journals.ac.za
Volatile aroma components of Vitis vinifera L. cv. Sauvignon blanc grapes were studied to
identify the components responsible for the characteristic aroma of this grape cultivar. Thirty …

Efficient exact arithmetic for computational geometry

S Fortune, CJ Van Wyk - Proceedings of the ninth annual symposium on …, 1993 - dl.acm.org
We experiment with exact integer arithmetic to implement primitives for geometric algorithms.
Naive use of exact arithmetic—either modular or multiprecision integer—increases …

Composition and sensory qualities of wines prepared from white grapes by fermentation with and without grape solids

…, P De Wet, CJ Van Wyk - … Journal of Enology …, 1975 - Am Soc Enol Viticulture
Wines were prepared from seven harvests representing six white grape varieties. The must
of each harvest was divided into 3 or 5 equivalent lots. Lots were fermented dry at 16 C from …

An automatic beautifier for drawings and illustrations

T Pavlidis, CJ Van Wyk - ACM SIGGRAPH Computer Graphics, 1985 - dl.acm.org
We describe a method for inferring constraints that are desirable for a given (rough) drawing
and then modifying the drawing to satisfy the constraints wherever possible. The method …

Effect of region on free and bound monoterpene and C13-N orisoprenoid concentrations in Weisser Riesling wines

J Marais, G Versini, CJ Van Wyk, A Rapp - 1992 - scholar.sun.ac.za
Free and bound monoterpene and C 13-norisoprenoid concentrations of Weisser Riesling
wines of different vintages and from different regions in South Africa, Germany and Northern …

Effect of Storage Time, Temperature and Region on the Levels of 1, l, 6-Trimethyl-1, 2-dihydronaphthalene and other Volatiles, and on Quality of Weisser Riesling …

J Marais, CJ Van Wyk, A Rapp - 1992 - scholar.sun.ac.za
A survey of the concentration levels of 1, 1, 6-trimethyl-1, 2-dihydronaphthalene (TDN) in
wines of different cultivars, vintages and regions was conducted. The TDN concentrations of …

Carotenoid levels in maturing grapes as affected by climatic regions, sunlight and shade

J Marais, CJ Van Wyk, A Rapp - 1991 - scholar.sun.ac.za
The effect of climatic region, degree of ripeness, sunlight and shade on carotenoid
concentrations in Weisser Riesling and Chenin blanc grapes was investigated. Lutein and beta-…

[PDF][PDF] Static analysis yields efficient exact integer arithmetic for computational geometry

S Fortune, CJ Van Wyk - ACM Transactions on Graphics (TOG), 1996 - dl.acm.org
… Fortune and CJ Van Wyk … (The details of an example using circles appear in Van Wyk [1995
].) Third, the programmer … and Van Wyk 19931 packages these techniques …