The aim of the Iranian Journal of Science and Technology Transaction A is to foster the growth of scientific research among Iranian scientists and to provide a medium by means of which the fruits of these researches may be brought to the attention of the world’s scientific community. The journal will accept the original research contributions (previously unpublished) from all areas of basic sciences. Submitted manuscript  may be theoretical, experimental or both. Journal will  welcome papers from researchers in all countries hoping that this will advance the scientific standards of the journal and provide a channel of communication between Iranian Scholars and their colleague in other parts of the world.