Introduction Rivers are one of the most important water resources and it is very important to study their water quality. Therefore, in this study, sampling was done from 15 permanent waterway stations of Pirbadush and Gashun of Qolyan River in Lorestan province, which are located in the path of oil shales.   Materials and Methods  Hydro-geochemical parameters were calculated by analyzing t...

Managing models and schemas pertaining to different parts of the marine information domain is an important part of the U.S. Coast Guard R&D Center's proposed Waterway Information Network. This paper describes our approach to distributed model and schema management and an architecture for facilitating the use of formal artificial intelligence concepts in application development with XML.

IN T R O D U C T IO N Bridges are an integral part of any highway system. The design of a particular bridge depends on many variables. A major considera­ tion, often necessary, is the length of the bridge. In certain circum­ stances and locations the length may be dictated by factors other than cost. But, where necessary the designer must decide, “How far can the bridge approaches extend onto t...

Tidal creeks are widespread and abundant estuarine ecosystems, yet their ecological relevance is undervalued as reflected by the lack of research on these systems relative to larger, better-known estuarine systems (e.g. the Chesapeake Bay, the Albemarle–Pamlico Sound System, Florida Bay, to name a few). These better-known large estuaries contain numerous tidal creeks which, in comparison to the...

Elliott, T.L. (corresponding author, [email protected] ), Waterway, M.J. ([email protected]), Davies, T.J. ([email protected]) Department of Biology, McGill University, 1205 Docteur Penfield Avenue, Montreal, QC H3A 1B1, Canada; Department of Plant Science, McGill University, 21 111 Lakeshore Road, Ste-Annede-Bellevue, QC H9X 3V9, Canada; African Centre for DNA Barcoding, Un...

Managing models and schemas pertaining to different parts of the marine information domain is an important part of the U.S. Coast Guard R&D Center's proposed Waterway Information Network. This paper describes our approach to distributed model and schema management and an architecture for facilitating the use of formal artificial intelligence concepts in application development with XML.