Given a set of trains, we want to select a set of stations such that every train meets at least one of these stations and the number of selected stations is minimum. This problem is NP-hard. However, we demonstrate that the real-world data from the German and European train schedules can be reduced through a rigorous application of certain dominance and equivalence relations such that it is eas...

This paper proposes an algorithm for the identification of the minimum cost solution over a 10 year time horizon to power an LTE (Long-Term Evolution) macro base station, using a photovoltaic solar panel, a set of batteries, and optionally also a secondary power source, which can be a connection to a (possibly unreliable) power grid, or a small Diesel generator. The optimization is formalised a...

ABSRACT This paper deals with study and analysis of the investigating power consumption in wireless network and investigating the possible way to reduce the power consumption at Base Station. We also characterized the techniques of the power consumption in wireless network and to explain the latest work on this way. This paper is also showing that the effects of the techniques on power consumpt...

The UK nuclear power industry is predominantly based on gas-cooled, graphite moderated reactors with their being 20 operating and 6 shutdown Magnox reactors. The radioactive graphite issues associated with the Magnox reactors relate mainly to the reactor core graphite but, at two of the stations, there is also another graphite waste stream which results from the handling of their particular des...

The limited density of an energy flow (DFE) in the Wireless Power Transmission (WPT) systems of the Space Power Stations (SPS) creates a set of difficulties including the huge antenna sizes especially of the receiving ones. It happened so not only by reason to reach the Fresnel area but by reason to transmit enormous power needed for Earth feeding. These circumstances require sometimes dividing...

serovar isolated from a canal in Louisiana in 1978 revealed it to be identical to that of V. cholerae 01 isolated in 1905 from a pilgrim at the El Tor quarantine station. The two strains are associated with sharply contrasting habitats. Ranges of variation of 5 to 15% in procaryotic 5S rRNA sequences between species are typical; variation within species may be 2% or greater. Because the 5S rRNA...

This empirical analysis examines the use of the live-streaming application Periscope in three crises that occurred in 2015. Qualitative and quantitative analyses of tweets relating to the Amtrak derailment in Philadelphia, Baltimore protests after Freddie Grey’s death, and Hurricane Joaquin flooding in South Carolina reveal that this recently deployed application is being used by both citizens ...

In this research paper, a 10 minute period measured wind speed data at 10 m, 30 m, and 40 m heights are presented for one of the major provinces of Iran. Four stations in Khuzestan- Abadan, Hosseyneh, Mahshahr, and Shushtar- are analyzed to determine the potential of wind power generation in this province. From the primary evaluation and by determining mean wind speed and also the Weibull f...

The concept of ‘Buildings as Power Stations’ (BAPS) represents a major shift in the way that electricity is generated, stored and used. Buildings are no longer simply consumers of electricity, but active players in the electric power system. Reducing energy demand to ‘PassivHaus’ levels of performance and the full integration of photovoltaic modules and wind turbines with buildings is itself a ...