Recently, a new islanding detection scheme based on power electronic signaling technology has been proposed in the literature. By broadcasting a signal on the distribution feeders from the substation to the down-stream DGs, the absence of the signal at the DG site will be a sign of islanding. The scheme is more reliable than regular local detection techniques while it costs much less than trans...

pollutions. Recently, both Persian Gulf and Gulf of Oman are experiencing several types of pollution including oil spills and heavy metal pollutions as well as Harmful Algal Bloom (HAB) caused by biological and environmental changes. Theiroccurrence of the red tide or harmful algal bloom during fall and winter 2008-2009 caused numerous unknown factors in the Strait of Hormuz, Persian Gulf and G...

Water is an essential material for all organisms on earth to sustain life, and a satisfactory water supply must be made available to consumers. It is required that drinking water not be contaminated by microbes or chemical substances harmful to human health. Pathogenic bacteria, viruses and protozoa in drinking water cause waterborne infectious diseases. The pollution source, pathogenicity, and...

A dependency of the world on electrical energy has been increasing according to development of industry. To meet increasing power demand, existing generators have been expanded or new generators have been installed continually. But currently, the social acceptance for installing a new plant is difficult due to electromagnetic effects on human body, environmental pollutions, and so on. Therefore...

The air pollutions from combustion flue gas and industrial gases became worse and cause the environmental problem. It is difficult for the conventional methods such as selective catalytic reduction method and lime-gypsum method to treat exhaust gases energy efficiently and inexpensively. Its energy efficiency and its initial and running costs are still in negative situation for the backward nat...

pollutions. recently, both persian gulf and gulf of oman are experiencing several types of pollution including oil spills and heavy metal pollutions as well as harmful algal bloom (hab) caused by biological and environmental changes. theiroccurrence of the red tide or harmful algal bloom during fall and winter 2008-2009 caused numerous unknown factors in the strait of hormuz, persian gulf and g...