... 2MATHEMATICAL MODELS AND DESIGN OF NANO- AND MICROELECTROMECHANICAL SYSTEMS 2.1. NANO- AND MICROELECTROMECHANICAL SYSTEMS ARCHITECTUREA large variety of nano- and microscale structures and devices, ... structures and devices, as wellas NEMS and MEMS (systems integrate structures, devices, and subsystems), have been widely used, and a worldwide market for NEMS and MEMS and their applications will be ... electric and magnetic field vectorsform separate and independent pairs. That is, Er and Dr are not related to Hr and Br, and vice versa. However, in reality, the electric and magnetic...