I have 24 years of experience, and specialize in the field of wind turbine, aerospace with specific knowledge in the areas of aerodynamics, structural dynamics and appliances. I have published on such topics as flame propagation, aerodynamic devices and vibration control. I have testified 14 times on topics such as wind turbine performance, product design related issues and appliances including fire. I served as technical expert in cases in Europe, India and China in addition to United States.