The radiative cooling time of the X-ray-emitting plasma near the center in many clusters of galaxies is shorter than the age of the cluster, but neither the expected large drop in central temperature –nor the expected mass flow towards the pressure-depleted cluster centers– are observed. We propose a solution to these “cooling flow” problems wherein energy is supplied to the plasma by hadronic ...

saymareh dam and hydro-power plant are under construction on saymareh river in ravandi anticline, ilam province. during boring the power tunnel which crosses the anticline, a large volume of water was encountered. this volume of water was not observed in the past. considering the water quality of springs, water level of dam site piezometers, geological and hydrogeological inspections, isotope a...

Article history: Received 8.5.2012. Received in revised form 16.7.2012. Accepted 20.7.2012. In medium voltage optimal power distribution network routing, especially in the suburban and rural ones, it is often necessary to estimate additional construction costs of tie feeders enabling backup supply in comparison with a decrease in energy not supplied costs. This paper describes one fast approxim...

László Zsolt Garamszegi, Marcel Eens, Denitza Zaprianova Pavlova, Jesús Miguel Avilés, and Anders Pape Møller Department of Biology, University of Antwerp, Campus Drie Eiken, Universiteitsplein 1, B-2610 Antwerp, Belgium, Department of Functional and Evolutionary Ecology, Estación Experimental de Zonas Áridas (CSIC), Almerı́a, Spain, and Laboratoire de Parasitologie Evolutive, Université Pierre ...