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CVD Growth of Graphene Stacks on 4H-SiC (0001) Surface - X-ray Diffraction and Raman Spectroscopy Study

100%

Tokarczyk M. , Kowalski G. , Grodecki K. , Urban J. , Strupiński W.

Acta Physica Polonica A

2013

tom 124

nr 5

768-771

Features associated with short and prolonged growth time in the chemical vapor deposition process of growth of graphene stacks on SiC (0001) substrate are reported. In particular general bimodal (as far as d_{002} interlayer spacing is concerned) distribution of graphene species across the surface of the samples is observed. It consists of thin few layer graphene coverage of most of the sample surface accompanied by thick graphite-like island distribution. It points to the two independent channels of graphene stacks growth with two characteristic growth rates.

The effect of manganese on the cardiovascular system

86%

Antonowicz-Juchniewicz J. , Chlebda E. , Urban J. , Szymanska-Chabowska A. , Andrzejak R. , Szymanska-Chabowska A. A. R.

Postępy Higieny i Medycyny Doświadczalnej

2002

tom 56

nr 5

635-654

This review describe the effect of manganese on the heart and blood vessels. The interaction between manganese and redox systems and manganese contribution to atherosclerosis development were also investigated. The results of the experimental studies on animals, on isolated blood vessels in vitro and on people professionally exposed to manganese were presented.