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The gametogenic cycle of the pearl oyster, Pinctada radiata, from the Zarat region (Gulf of Gabès) in Tunisia was investigated monthly during a 1-year study of the reproductive cycle. Gametogenic activity was determined based on histological analysis of the gonads during the study period. P. radiata was found to have a clearly defined annual reproductive cycle, with two spawning periods per year....
In this work, we propose an object recognition strategy in a domestic environment. Our contribution is to use low-level features extracted from images with high-level concepts generated from an ontology of domestic objects to get richer decision. It consists in developing a semantic classification by providing for a white cane user the class of the obstacle and the scene in which it is located. The...
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