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Inguinal hernia repair is one of the most frequently performed surgical procedure in infants and young children. Laparoscopic hernia repair in infancy and childhood is still debatable. There are many techniques available for laparoscopic hernia repair in pediatrics. The aim of the study is to compare laparoscopic intracorporeal purse-string suture ligation of the hernia defect leaving the sac intact...
Piezoelectric vibration based energy harvesters have been widely researched as powering modules for various types of sensor systems due to their ease of integration and high energy density. A number of piezoelectric transducer based topologies have been reported in literature. In this paper a piezoelectric transducer in parallel with a switch along with a low-power CMOS full-bridge rectifier is presented...
In this paper, a low-power CMOS AC-to-DC full-bridge rectifier with a switch for piezoelectric transducers is presented. It consists of two NMOS and two PMOS transistors, which are configured to operate as a full-bridge rectifier along with an Op-Amp-based switch control circuit which is connected to a PMOS transistor of the main full-bridge rectifier. With a load of 45KΩ, the output rectifier voltage...
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