Introduction: Recent volcanism and associated hydrothermal activity of the Aeolian Arc (SE Tyrrhenian Sea, Italy) have been studied for the past 30 years [1,2]. The discovery of metalliferous hot spring deposits in the Pacific in the 1960’s stimulated exploration for this type of deposit in the Tyrrhenian Sea [3,4] because there they occur at much shallower depths. Hydrothermal systems in the T...

Tunisia is rich in geothermal resources from ancient civilizations. Hydrothermal activity in Tunisia has been related to three main stages: magmatic and tectonic activities, eustatisme (Atlantic and Mediterranean coupling) and climate change. The principal factor and the responsable of this phenomenon is the meteoric water by piston flow processes. It constitue the catalyst of volcanism. The Tr...

Abstract Multi-Area Multi-Fuel Economic Dispatch (MAMFED) aims to allocate the best generation schedule in each area and offer power transfers between different areas by minimizing objective functions among available fuel alternatives for unit while satisfying various constraints systems. In this paper, Fuzzified Coulomb’s Franklin’s Laws Behaved Optimization (FCFLBO) approach is proposed solve...

There is an increasing concentration in the influences of nonconventional power sources on system process and management, as application these upsurges worldwide. Renewable energy technologies are one best for generating electrical with zero fuel cost, a clean environment, available almost throughout year. Some widespread renewable tidal energy, geothermal wind solar energy. Among many sources,...

kalchoye copper-gold deposit is located about 110 kilometers east of esfahan province and within the eocene volcano sedimentary rocks. sandy tuff and andesite lava are important members of this complex.the form of mineralization in area is vein and veinlet and quartz as the main gangue phase. the main ore minerals are chalcopyrite, chalcocite, galena and weathered minerals such as goethite, iro...

BACKGROUND Panax ginseng Meyer is cultivated because of its medicinal effects on the immune system, blood pressure, and cancer. Major ginsenosides in fresh ginseng are converted to minor ginsenosides by structural changes such as hydrolysis and dehydration. The transformed ginsenosides are generally more bioavailable and bioactive than the primary ginsenosides. Therefore, in this study, hydroth...

Estimates of ocean temperatures on Earth 3.5 billion years ago (Ga) range between 26° and 85°C. We present new data from 3.47- to 3.43-Ga volcanic rocks and cherts in South Africa suggesting that these temperatures reflect mixing of hot hydrothermal fluids with cold marine and terrestrial waters. We describe fossil hydrothermal pipes that formed at ~200°C on the sea floor >2 km below sea level....