The power management of ICT systems, that is, data processing (Dp) and telecommunication (Tlc) systems, is becoming a relevant problem in economical terms. Dp systems totalize millions of servers and associated subsystems (processors, monitors, storage devices, etc.) all over the world that need to be electrically powered. Dp systems are also used in the government of Tlc systems, which, beside...

A new method for assessing both current and historical occupational exposures to magnetic fields has been developed and used in health studies involving a cohort of electricity generation and transmission workers in England and Wales. The exposure values are derived by calculation from engineering and operational data about the power stations rather than from measurements. They are provided for...

In this paper, we analyze and optimize the energy efficiency of downlink cellular networks. With the aid of tools from stochastic geometry, we introduce a new closedform analytical expression of the potential spectral efficiency (bit/sec/m). In the interference-limited regime for data transmission, unlike currently available mathematical frameworks, the proposed analytical formulation depends o...

Mobile cellular CDMA networks for tactical applications require mobile base stations in order to provide communications on the moue. Because of the mobility of the base stations, power balancing among the transmitters at different base stations is more dificult than in commercial cellular CDMA systems. Handoff of mobiles among base stations is also more difficult, primarily due to the mobility ...

The increase of water temperature, due to thermal discharges from two nuclear power stations, was one of the most significant environmental changes since 1982 in the Daya Bay, located in the north of the South China Sea. This study investigates the long-term (1982-2012) environmental changes in Daya Bay in response to the increase of water temperature, via comprehensively interpreting and analy...