An active antenna for transmitter application in S frequency band is designed and analyzed using harmonic balance technique which is based on the nonlinear model of active devices. In this active antenna, the amplifier is integrated with the radiator which is a rectangular patch antenna. This patch antenna is analyzed employing full-wave momentum method. By applying nonlinear model of transisto...

To reduce torque oscillations in electric motors, harmonic current injection (HCI) has been used industry for some time. For this purpose, higher currents calculated advance are injected into the machine. Since general conditions machine can change during its life cycle, article presents a method that makes it possible to parameters of HCI operation. sensor signals detect reaction motor small v...

background haemorrhoids are cushions of submucosal vascular tissue located in the anal canal starting just distal to the dentate line. haemorrhoidal disease is a common anorectal disorder which has symptoms of bleeding, prolapse, pain, thrombosis, mucus discharge, and pruritus. haemorrhoidectomy is one of most frequently performed anorectal operation worldwide. objectives the aim of this study ...