The electrical applications of carbons and their composites are reviewed, with emphasis on applications that are relevant to industrial needs. The applications include electrical conduction, electrical contacts, electrodes, electromagnetic interference shielding, resistance heating, thermoelectricity, sensing, electrical switching, electronic devices and thermal pastes. The carbons include grap...

Action of electric and magnetic fields and their interaction effects are the basis of operation of every electrical and electronic instrument. But such action fields could also cause serious problems to the functioning of those instruments if they act on them unnecessarily, to the extreme, failure of the system may also occur. To avoid such unpleasant consequences arising out of unwanted electr...

The basic formulations used in the description of thin walls and small apertures in simulations based on the Transmission-Line Modelling (TLM) method are described. It is shown that eecient and accurate methods are available which exhibit a reasonable balance between accuracy and computational eeciency. Results of simulations are presented showing the shielding eeectiveness of cabinets. Of all ...

A new class of auxetic materials, a hexachiral honeycomb structure with good mechanical properties, is investigated through computer simulation and measurement. The electromagnetic properties for shielding applications are taken into account. This new material shows some interesting EMC properties (e.g. -40dB transmittance @ 2.4GHz) and promises better performance using different insertion tech...

Purpose This study attempted to repeat experiments performed 20 years ago that detected exceptionally high strength electromagnetic fields (100 nT) from the hands of several energy healers. The equipment utilized in this replication attempt was far more sensitive, and the magnetic shielding used to block confounding fields from electrical lines far more effective, than in the original studies.

With the rapid development of gigahertz electronic systems, electromagnetic pollution has become a serious problem, which justifies a very active quest for effective electromagnetic interferences (EMI) shielding materials. Polymers filled with carbon fillers have been widely investigated for EMI shielding purposes because of unique combination of electrical conductivity and polymer flexibility....

Magnetic iron oxide nanoparticles (Fe3O4) can be dispersed in a supporting material so that the composite better respond to electromagnetic fields, absorbing part of their energy. In discussion here proposed we will consider role these applications for interference (EMI) shielding. Inserted intrinsically conducting polymers (ICPs) instance, are increasing EMI shielding effectiveness polymer, pr...

Functional conducting polymeric composites with micro and nano structures have received great attention due to technological applications in electrical, optical, magnetic materials devices. Electrically conductive textile surfaces are used for smart/functional such as electromagnetic shielding, anti static coatings, wearable electronic sensors, heat generating textiles etc. In this study, micro...

An analytic method originated by Y. H. Chin was extended to calculate the electromagnetic fields and the longitudinal impedance due to coherent wiggler radiation (CWR) in a rectangular chamber. The method used dyadic Green functions based on eigenfunction expansion method in electromagnetic theory and was rigorous for the case of straight chamber. We re-derived the theory and did find the full ...

2799 According to a recent worldwide survey, current rates of de novo pacemaker and implantable cardioverter-defibrillator (ICD) implantation are higher than those of previous years at >700 000 and >200 000 per year, respectively. Parallel to the growth in cardiovascular implantable electronic device (CIED) use, technological advances have led to new sources of electromagnetic radiation. Modern...