“…Researchers have determined physical quantities from the classics through logic and specific established parameters, 13 , 25 , 26 , 28 , 29 , 44 , 77 , 78 , 79 , 80 , 81 , 82 , 83 and have applied these parameters to signal-processing procedures. Studies of carotid–wrist pulse-taking, 71 , 84 studies of rapid, slow, and moderate pulses based on the pulse–respiration ratio, 24 , 74 , 85 , 86 studies of floating and sunken pulses, 87 , 88 , 89 , 90 , 91 , 92 , 93 the string-like pulse, 94 and vacuous and replete pulses, 95 , 96 correlation studies of expert diagnosis; 97 and studies on anatomical and hemodynamic PPWs 98 have been conducted.…”