This work proposes a novel combined approach for reducing the storage capacitances in off-line high power factor LED drivers.The proposal is to combine converter integration (power factor correction plus power control stages sharing a common Alternator Pulleys switch) with photometrical constraints on the maximum allowable LED current ripple.An exp
Hospital acquired infections (HAI) are important causes of morbidity and Course a pied - Accessoires - Nutrition - Jujubes mortality.The purpose of this study was to see the type of HAI and causative organisms of these infections among the paediatric patients in tertiary level hospitals of Dhaka city.This cross sectional study was conducted in thre
Torsional systems with gear pairs such as the gearbox of wind turbines or vehicle driveline systems Alternator Pulleys inherently show impact phenomena due to clearance-type nonlinearities when the system experiences sinusoidal excitation.This research investigates the vibro-impact energy of unloaded gears in geared systems using the harmonic balan
Background Vaccination in pregnancy is important for preventing illness for mothers and babies; however, vaccine uptake in pregnant individuals is lower than non-pregnant females of fertile age.Given the devastating effects of COVID-19 and the increased morbidity and mortality risk for pregnant individuals, it is important to understand the determi