Luis E. Suárez

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A new aporphine alkaloid, (-)-arcabucoine [(6aR)-N-formyl-1,2-methylenedioxy-9,10-dimethoxy-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline] 1 was isolated from the leaves of Talauma arcabucoana (Magnoliaceae), along with the known compounds (-)-erythro-saccharinic acid lactone 2 and (-)-shikimic acid 3. Furthermore, the known aporphine alkaloids(More)
This paper presents the research of the wavelet application for the damage identification in structures. Simply supported beam with a transverse on-edge nonpropagating open crack was chosen as a case of study. The results show that some wavelets were able to detect exact crack location and that regularity is an important characteristic in selecting the(More)
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