structural and mechanical design for others related to industrial plants, petroleum drilling and production equipment, and consumer products; stress analysis of plastics, and metals for the purpose of determining if a particular part or device is of sound design; predictive engineering; failure analysis of plastics and metals; instrument design for others for measuring and controlling processes in industrial plants and the performance of consumer products; analysis of heat transfer and fluid mechanics in the oil and gas producing a pipeline industry and chemical plants and refineries, packaging design for others