Introduction.The topic of implementing a dual-band mode of operation for director dipole antennas is represented by a wide range of works, almost all of which are dedicated to studying the properties of a classic dipole.However, the issue of end excitation of radiators for dual-band director antennas remains open.The development of such radiators r
Background and Aim: Despite worldwide case reports, including Brazilian cases, no frequency study on infection of pets by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been conducted to date in Brazil.Accordingly, the present study was aimed to assess dogs and cats belonging to positive owners in Recife, Northeastern Brazil.Mater
Magnetic gears are designed to perform in a highly reliable manner, and offer several advantages compared to mechanical gears but difficulties with manufacturing techniques and cost are strong handicaps.In contrast to conventional gears, the contact and lubrication free force transmitting elements lead to a considerable lifetime and range extension
This work proposes a Internet Log Book CMOS reconfigurable charge pump (CP) for a low-voltage energy harvesting system.It utilizes the low effective resistance from the parallel CP to enhance its power conversion efficiency (PCE).The CP exhibits an adaptive configuration with different stages depending on the input voltage, changing its voltage con