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S. Zlatkovic

Dear Mohamed,

here is two documents, second is in Serbian language, but maybe it can be useful for you regarding pictures and schemes..

Regards, Slobodan

Mohamed Salem Nashwan

Thanks you S. Zlatkovic for your answer, however, the required calculation are not found in both of the file.

Mohamed S. Gaballah

I wish to present anything can help you, but I am sorry.