We present a new touch-free technique for trapping, positioning and selecting human spermatozoa. This can be done in free solution (culture medium) by high-frequency electric fields. Ultramicroelectrodes fabricated by photo- and electron-beam lithography on quartz and glass substrates were used to create field cages or long field channels. If the conductivity of the external salt solution is hi...

in this paper, shielding effectiveness (se) of a perforated enclosure with imperfectly conducting walls is evaluated. to this end, first, an accurate numerical technique based on method of moments (mom) ispresented. in this method, lossy metallic walls of the enclosure are replaced by equivalent electric surfacecurrent sources. then, the impedance boundary condition on the imperfectly conductin...

Introduction: Public and occupational exposure to extremely low frequency (ELF) electric and magnetic fields induced by electrical equipment is a significant issue in the environment and at the workplace due to their potential health effects on public health. The purpose of this study was assessment of the electric and magnetic fields intensities and determination of mental and psychological ef...