EcoMotors, Inc.(EM), developer of opposed-piston opposed-cylinder (opoc) engine technology, has established a joint research and development center together with Hunan University (HNU) in Changsha to further develop and adapt their technology for the Chinese market.The announcement comes shortly after the company announced the formation of a joint venture with First Auto Works Jingye Engine Company (FAW JY) to develop, manufacture, sell and service the opoc engine technology in China.