In this paper we discussed the development of a morphing wingtip device or winglet for aircraft.The aim of this research is enhancing the aerodynamic of aircraf
【正】 Objective To explore the therapeutic principles and prognostic factors of soft tissue sarcoma. Methods Two hundred and fifty-one patients with soft tissu
【正】Objective To analyze the clinical data of patients who suffered from hypertensive intra cerebral hemorrhage (HICH) in West China Hospital of Sichuan Unive