Presents information on PELS society Day 2021.

On 20 June 1987 the IEEE Power Electronics Society (PELS) became a full-fledged society within IEEE. Since 2019, there has been push for local, regional, and global celebrations to commemorate founding of society. This year, was excellent participation engagement worldwide through events activities hosted supported by PELS.

festivals and celebrations are regarded as vitality and dynamism of each society. in pre-islamic iran, there have been as many as twenty four festivals. when iranians accepted islam, many islamic festivals were added to these national festivals. whereas one can find lots of information in tarikh-e-beihaghi, we can find little information in other historical books. meanwhile there is quite a lar...