4Amann.M, Proctor.LT, Sebranek.JJ.Opioid-mediated muscle af- ferents inhibit central motor drive and limit peripheral muscle fatigue de- velopment in humans.The Journal of Physiology.2009,1 : 271N283.
5KOICHI SAKATA, HIROSHI FUJIMOTO.Perfect Tracking Control of Servomotor Based on Precise Model Considering Current Loop and PWM Hold.Electrical Engineering in Japan, 2009,4 : 64 - 72.