Please correct my letter Dear, I have the honor to ask you to grant me an internship contracted for a maximum of one month in your laboratory, supported by my institution, date and duration to predict according to your convenience. Indeed, as a researcher in the sector of your laboratory that perfectly meets the requirements of my future research. I inform you that I am a teacher at the level of process engineering department, at the University of Ouargla and I realized my studies at the specialization process engineering option chemical engineering, my doctoral thesis is on renewable energies (production 3rd generation biodiesel), I am currently carrying out research on the production of bioethanol 3rd generation, then I am interested in everything that concerns chemical analysis or research, fermentation, transesterification, characterization, biomass, algae, … Thank you for your attention to this internship application and I remain at your disposal for any further information. Pending a favorable reply from you, I beg you to accept, Sir, the expression of my whole consideration.