Tishk International University and Erbil Polytechnic University hosted the seventh International Engineering Conference (IEC2021) on February 24-25, 2021. IEC2021 is technically sponsored by IEEE and IEEE Iraq Section. The conference was aimed to disseminate research findings and provide a platform for scholars to debate and exchange ideas on the developments in the field of engineering. The accepted papers will be indexed by IEEE Xplore Digital Library Database. Furthermore, the conference provided our graduate students a chance to communicate with experienced researchers to discuss their current work as well as to be engaged in future research topics, and new opportunities.The program committee [...]