Cocoa beans from several types of post harvest treatments were processed into cocoa butter, cocoa powder and chocolate spread using traditional processing techniques. OTA was analyzed in two hundred and sixteen (216) samples of cocoa and cocoa derived products using HPLC with fluorimetric detection. It was found that OTA content in cocoa nibs depended only on the state of cocoa pod and the time...

We define a new object, called a signed poset, that bears the same relation to the hyperoctahedral group B n (i.e., signed permutations on n letters), as do posets to the symmetric group S n. We then prove hyperoctahedral analogues of the following results: (1) the generating function results from the theory of P-partitions; (2) the fundamental theorem of finite distributive lattices (or Birkho...

The non-destructive evaluation of the rail is crucial to provide a high safety level in railway transportation. To detect and classify on line rail surface defects (splitted rail, shelling ...), a specific double-coils double-frequencies eddy current sensor is used, which gives 8 real differential signals. Blind Source Separation (BSS) is applied to dissociate the different classes of defects o...