... DEVELOPMENT OF A BIOREACTOR FOR IN- VITRO ENGINEERING OF SOFT TISSUES KYAW MOE (B.Eng (Hons.), YTU, Yangon) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF MECHANICAL ... through the chamber maintaining steady state Low inlet gas flow rates were maintained such that inexpensive commercially available CO2, O2, and N2 tanks would last for approximately weeks In this system, ... from National University of Singapore designed a bioreactor with spool The actuating unit from that design is made up of a stepper motor (PM 35S-024, Minebea Hamamatsu) actuating via a pair of spur...