Mohammed ElGayyar

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The beneficial health effects of extracts from many types of plants that are used as seasoning agents in foods and beverages have been claimed for centuries. The purpose of this study was to examine the effectiveness of selected herb and spice essential oils for control of growth and survival of microorganisms. Inhibition of growth was tested by the paper(More)
The Advanced Encryption Standard (AES) was selected by NIST due to its heavy resistance against classical cryptanalysis like differential and linear cryptanalysis. Even after the appearance of the modern side-channel attacks like timing and power consumption side-channel attacks, NIST claimed that AES is not vulnerable to timing attacks. In 2005, Bernstein(More)
Smoking causes endothelial cell (EC) injury; however, neither the components of cigarette smoke nor the mechanisms responsible for this injury are understood. The nitrosated derivative of nicotine, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), has been implicated in the carcinogenic effects of tobacco; however, the effects of NNK on the(More)
This paper presents a systematic methodology to convert planar 3 degree-of-freedom open 4-bar chain into planar 1 degree-of-freedom 6-bar linkages. This objective is achieved by adding 2RR chains to the original mechanism. Hence, these additional chains mechanically constrain the relative movement of the end-effector to reach a required set of task(More)
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