We investigate the problem of algorithmically synthesizing turn-constrained routes that minimize exposure to hazardous weather. Such a problem is suitable to air traffic management automation and aircraft flight management systems. Our algorithm synthesizes routes that aircraft may follow from a specified start to finish location. Example applications include synthesizing routes (1) from airpor...

The directors of the Iranian-Italian archaeological Expedition in Khuzistan, south-west Iran present first results a survey conducted plain Izeh, one core sectors ancient Parthian vassal kingdom Elymais. Izeh is situated east fertile lowlands at feet Bakhtiari mountains. From there many passes lead through mountain range. new adds data to exploration by H.T. Wright same region....

the crossing number of a graph  is the minimum number of edge crossings over all possible drawings of  in a plane. the crossing number is an important measure of the non-planarity of a graph, with applications in discrete and computational geometry and vlsi circuit design. in this paper we introduce vertex centered crossing number and study the same for maximal planar graph.

This essay discusses the preliminary results of recent archaeological investigations into stone axe production and exchange processes at a Neolithic hilltop settlement in South India. The site in question comprises a stone-lined circular structure situated on a plateau area on the side of a topographically complex hill, known locally as Hiregudda. Across the plateau, extensive surface scatters ...

Recent technology change and market liberalization have substantially reduced the costs of providing international message telephone services (IMTS). However, the full extent of these cost reductions have generally not been reflected in lower prices. This paper reviews the recent literature on international telecommunications markets, and examines regulation and IMTS pricing behaviour. Particul...