<p>For 12 years, I have been serving as a teacher in one of the univeristies of Iran. My favorite courses include Statics, Dynamics, Vibration, and Control for mechanical engineers. I have been graduated from SHARIF university, one of the best ones in Iran.</p><p>I have been working as the head of Noise and Vibration Laboratory in one of the Iran&#x27;s car making factories for 18 years. Our tasks include measuring and analysing sound and vibration levels of cars, natural frequency and mode shapes of car components, and sound source localizations for cars and ways of reducing it.</p><p>I have written a vibration book for those who are taking exams to upgrade to Master of Science degree. </p>