This paper presents a primary-parallel secondary-series multicore forward microinverter for photovoltaic ac-module application. The presented microinverter operates with a constant off-time boundary ...

We studied the primary and secondary esophageal peristalsis in 36 patients with heartburn and acid regurgitation and in 14 asymptomatic volunteers. Primary peristalsis was elicited by ten swallows of ...

Carboxylic acids play an important role in atmospheric photochemical reactions, aerosol nuclei, and climate change. Primary and secondary carboxylic acid emissions from various combustion scenarios ...

Electrical transformers are essential components in the transmission and distribution of electrical power. In this in-depth video, we explore how transformers work, the science behind their operation, ...

A single-phase current-limiting transformer has been developed based on flux transfer. The transformer consists of two independent iron cores, one primary coil, two separate secondary coils, and ...

Pole-mount transformers work based on a principle called electromagnetic induction. Inside each transformer are two coils of wire, the primary and the secondary. These are wrapped around an iron core.