Assistant Professor Dr. Hassan Taleb Hashem participated in the discussion of a master's thesis for a researcher from the University of Karbala tagged: (Improving solar distillation by analyzing heat transfer and using a Fresnel lens) by researcher Amir Abdul Salam Abd Aoun Hayy The thesis dealt with a technology used to desalinate water and obtain distilled water from salt water using a Fresnel lens to focus rays and phase change materials to store the rays during the day and then return them to the device when there is no solar rays,  This method can use heat and how to benefit from it in this process and reduce the overall cost and improve performance.