A three-dimensional mathematical and physical model coupling with the heat transfer and the flow of molten metal in the centrifugal casting of the high speed steel roll was established by using CFD software FLUENT. It can be used to analyze the distribution of the temperature filed and the flow filed in the centrifugal casting under the gravity, the electromagnetic stirring force and the centri...

In a dual-plane compact electromagnetic band-gap (CEBG) microstrip structure, patches are etched periodically in the ground plane to prohibit the propagation of electromagnetic waves in certain frequency bands so as to provide filtering functionality. However, the existence of the etched patches in the ground plane becomes a natural concern for the reason that these structures might be more pro...

The environment is exposed to electromagnetic radiations as a result of widespread use of wireless communication. This yields a massive increase in electromagnetic pollution. There is a concern of possible adverse effects of cellular phone radiation as a result of the enormous increase in the use of these phones throughout the world. Some studies have been conducted on genetic and biological ef...

In the paper first the harmful effects of electromagnetic radiation to human beings are pointed out. The sources of electromagnetic energy encountered in occupational and general public environment are revealed and the thermal and nonthermal influences of their electromagnetic fields are briefly discussed. A survey of exposure limits adopted in different national and international standards and...