· Khoder, K., Kaja, K., Choumane, A., Boksmati, S., & Amoud, H. “The Performance of RFID Tag in Close Proximity To Human Body”, SETIT’18, hemmamet – Tunisia, Genoa- Italy, 18-20 Dec 2018.
· K. Kaja, “Atomic Force Microscopy: principles, applications and perspectives”, Journée des Doctorants, Lebanese University, Faculty of Sciences III, September 2017, Lebanon
· K. Kaja, “ Exploring the Nano-mechanical properties on low- and 2D materials using Atomic Force Microscopy”, Materials Technology Workshop, Beirut Arab University, March 2017, Beirut, Lebanon.
· K. Kaja, “ New Horizons in nano-mechanical, nano-electrical and nano-chemical properties of matter”, Nanotechnology Day, Beirut Arab University, March 2017, Tripoli, Lebanon
· K. Kaja, “Latest Advances in Atomic Force Microscopy”, Beirut Arab University, Doctoral school Talks, March 2017, Beirut, Lebanon.
· K. Kaja, “Correlated Electrical, Mechanical and Chemical characterization AFM methods”, NanoteC16, Trinity College Dublin, Ireland, 2016.
· K. Kaja, “Peak Force Tapping: correlating mechanical and electrical properties with accurate force control”, Scanning Probe Microscopy Meeting – Royal Microscopical Society, University of Warwick, United Kingdom, 2016.
· B. H. Smith, T. L. See, F. Hiersemenzel, K. Kaja, M. Antar, “Laser Polishing of Additive Manufactured Steel and Titanium Components”, American Society for Precision Engineering, Summer Topical Meeting -Dimensional Accuracy and Surface Finish in Additive Manufacturing, Raleigh, USA, 2016.
· K. Kaja, N. Chevalier, D. Mariolle, F. Bertin and G. Feuillet, “Etude des effets des paramètres expérimentaux sur la mesure de travail de sortie par KFM“, Forum de microscopie à sonde locale, Hardelot, France, 2009.
· O. Renault, K. Kaja, N. Chevalier, D. Mariolle and F. Bertin, ”Etude spectromicroscopique par XPEEM de surface de graphene/SiC” , ELSPEC, Maroc, 2010.
· D. Rouchon, L. Becerra, O. Renault, K. Kaja, D. Mariolle, N. Chevalier, “Raman spectra and imaging of graphene layers grown by SiC sublimation“, XXII International Conference on Raman Spectroscopy, Boston-Massachusetts, August 2010.
· O. Renault, M. Lavayssière, K. Kaja, A. Bailly, L.-F. Zagonel, and N. Barrett “Recent progress in high-resolution XPS and UPS imaging and nanospectroscopy using XPEEM”, ECASIA, Turkey, 2009.
· K. Kaja, O. Renault, M. Lavayssiere, N. Chevalier, D. Mariolle, D. Rouchon, L. Beccera, T. Poiroux, F. Bertin and G. Feuillet, “Local work function investigation of Graphene on SiC by complementary use of KFM and XPEEM“, ACSIN 10th international conference, Granda, Spain, 2009.
· K. Kaja, O. Renault, M. Lavayssière, D. Mariolle, N. Chevalier, T. Poiroux and F. Bertin, “Local work function investigations of Graphene/SiC by complementary use of KFM and XPEEM: electrical and chemical correlations”, ECASIA, 13th European conference, Antalya, Turkey, October 2009.
· K. Kaja, N. Chevalier, D. Mariolle and F. Bertin, “Study of the experimental effects on the work function measurements using KFM”, Forum des microscopies à sonde locale, France, 2007.