The image above, provided by NASA, highlights how all three heat-transfer methods (conduction, convection, and radiation) work in the same environment. What is Conduction? Conduction transfers ...

Transmission & Distribution World provides electric utility professionals with information about the latest technologies & solutions in the energy industry.

A ±45° dual-polarized concentrically arranged dipole antenna is proposed for base station applications. The simple, robust antenna consists of four simple dipoles arranged in a square above a flat ...

In this paper, a novel feedback controller concept for grid-connected Modular Multilevel Converters (MMC) is proposed. The controller is based on the Linear Quadratic Regulator (LQR) method and shows ...

Aortic valve insufficiency may be caused by abnormalities of the leaflets, the root, or a combination of both. In some patients, the primary pathology is confined to the aortic root itself, the ...

How Do Hearing Aids Work? Hearing aids work by amplifying sound through a three-part system: The microphone receives sound and converts it into a digital signal. The amplifier increases the strength ...