Dr. Djeffal has served at the University of Batna since 2003. He is considered a pioneer in the application of Soft-Computing-based techniques for the study and modeling of nanoscale electronic circuit and was the first to launch Soft-Computing-based nanoelectronics modeling. His research group developed a series of novel Soft-Computing-based approaches for the investigation of nano/microelectronic devices that are now widely employed in many research laboratories. In 2009, Djeffal and his group at LEPCM Laboratory started using Multi-Objective-based optimization techniques to design the nanoscale circuits and photovoltaic devices. They, first, demonstrated the existence of optimized nanostructures configurations. He has published more than 150 journal and conference papers and author of some books and book-chapters in the field of nano/microelectronics and soft-computing. He has supervised 15 Engineering, 12 Masters and 10 PhD these students and is a reviewer of many journals and conferences. Recognitions: membership in national and other academies, prizes, awards, etc Member of Arab-German Academy of Sciences and Humanities (AGYA), 2013, Berlin, Germany. Young TWAS-Fellow, 2013, Italy. Senior Member of IEEE (IEEE-SM), 2013, USA Shoman Award for Arab Researchers - Engineering Sciences- (2011), Jordan.                                            Microsoft-TWAS-AAS Award (2010), Kenya.                                                                                                        Certificate of Merit for Best paper, World Congress of Engineering (WCE’2013), London (2013), UK.