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—This paper considers the issue of modeling the pivot nonlinearity in a typical hard disk drive, taking into account vis-cous friction, Coulomb friction and hysteresis effects. It presents a nonlinear compensator design, based on a proposed model, to make the compensated system behave like a double integrator regardless of the magnitude of the input(More)
BACKGROUND Prior to 1994, plantar fascia ruptures were considered as an acute injury that occurred primarily in athletes. However, plantar fascia ruptures have recently been reported in the setting of preexisting plantar fasciitis. We analyzed risk factors causing plantar fascia rupture in the presence of preexisting plantar fasciitis. METHODS We(More)
A completely extruded talus without any remaining soft tissue attachments is extremely rare. The present report describes treatment of a 45-year-old man who sustained a completely extruded talus injury following a rock-climbing fall. Upon admission, the extruded talus was deep-frozen in our bone bank. The open ankle joint underwent massive wound debridement(More)
BACKGROUND This study evaluated the effects of Beraprost sodium (Berasil) on subjective leg symptoms in patients with peripheral arterial disease caused by diabetes mellitus. METHODS Ninety-four diabetic patients with peripheral arterial disease were treated with Beraprost in a fixed-dose, prospective, multicenter, cohort study. Beraprost (40 µg) was(More)
Lower Extremities Committee of Korean Academy of Medical Sciences Guideline for Impairment Rating develops new guidelines which are based on McBride method, American Medical Association Guides, Disability evaluation by The Korean Orthopaedic Association, The Korean Neurosurgery Society, and Korean Academy of Rehabilitation Medicine. The committee analyzed(More)
In this paper, the modeling issue of the pivot nonlin-earity in a typical hard disk drive is considered. Vis-cous friction, Coulomb friction and hysteresis effects are taken into account. Based on the proposed model, a nonlinear compensator is designed to make the compensated system to behave like a double integrator regardless of the magnitude of the input(More)