In a previous paper the authors compared the AC-AC converters, useful for the frequency regulation in hydroelectric microplants varying the power dissipated in ballasts loads, with the new proposal consisting in a bridge three-phase rectifier using diodes with a serial switch with the load that is switched with symmetric angle.The paper showed that
BACKGROUND:Community health worker (CHW) interventions are a successful strategy to promote health among HIV-negative and persons living with HIV (PLWH).Psychosocial factors are critical dimensions of HIV/AIDS care contributing to prognosis of the disease, yet it is unclear how CHW interventions improve psychosocial outcomes in PLWH.The purpose of
Abstract Cancer remains a major health challenge, with the effectiveness of chemotherapy often limited by its lack of specificity and systemic toxicity.Nanotechnology, particularly in targeted drug delivery, has emerged as a key innovation to address these limitations.This study introduces lipoic acid-boronophenylalanine (LA-BPA) derivatives that i
A novel shell-and-tube heat exchanger with screw cinquefoil orifice baffles is designed to grasp the Youth Spur Straps weakness of the traditional shell-and-tube heat exchanger with cinquefoil orifice baffles.It specifically enhances the heat transfer coefficient in the area between adjacent baffles and enhances the shell-side fluid flushing abilit