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Exhibits and activities at the event will offer a look at different areas of engineering — mechanical , electrical , biomedical , chemical , civil , aerospace , computer , materials and systems engineering . Industrial agriculture still relies on synthetic , chemical , and now genetic engineering , whereas organic agriculture relies on biological processes . Programs are authorized in biomedical , chemical , civil , electrical , environmental , mechanical and optical engineering , as well as physics , and engineering management . Probe-type price or product identification tags can cause microbial , chemical , or physical contamination if not properly designed , constructed , and maintained . Applicants should have a bachelor 's degree in engineering ( biomedical , chemical , electrical , industrial , mechanical , etc. ) from an ABET-accredited program or its equivalent . Distributors of process equipment accessories for the food , pharmaceutical , chemical , and electro-plating industries . Mechanical , thermal , chemical , magnetic and selected optical sensors play a dominant role in many applications . These energy sources include thermal , chemical , pneumatic , hydraulic , mechanical and gravitational . Our clients come from a wide variety of business sectors , including pharmaceutical , chemical , biotechnology , industrial , IT and software , electronics , financial services , fashion , publishing and fast moving consumer goods .