Nermin Nur FUÇUCU, Uğur ÖZVEREN, “Investigation Of Gas Engine For A Biomass Feedstock Downdraft Gasifier Fueled With Hazelnut Shells”, TFD 34 — 34th Turkish Physical Society International Physics Congress, Bodrum Herodot Cultural Center (MUĞLA), September 5-9, 2018, pp. 502. Certificate