W. N. Tan

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The title compound, C(32)H(49)NO(4), has been isolated from the dichloro-methane extract of the stem bark of Garcinia atroviridis Griff. ex T. Anders. Rings A and B, B and C, and C and D are trans-fused, whereas rings D and E are cis-fused. Rings A, B, C and E have slightly distorted chair conformations, while ring D is most heavily distorted towards a(More)
This paper investigates the use of discrete wavelet transform in temporal video compression. The proposed method has the advantage of being independent of the number of frames. After decompression, it also reproduces video images that have relatively high quality of visualization. 1. Introduction In the world of information technology, the transmission of(More)
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