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GIS (Geographic Information Systems) is an organized collection, comprising of hardware, software, data and staff for: acquisition, pre- analysis and selection, sorting, processing and storing, updating, global or/and thematic analysis, displaying domain specific spatial informati on. The informational system regarding the complex information activities for the development of management process represents the entirety of sources, procedures and means through which information is processed inside that activity. Th ...

Lead-free solutions for protective coatings as an alternative for ecological galvanized steel sheets obtaining were studied in this paper. The lead from zincing baths was eliminated and replaced with bismuth as non hazardous elements. Also other alloying elements (nickel, tin, and aluminium) in zinc melts were added. The making technology of these galvanizing free-lead alloys wa s established in accordance with alloying elements properties. The tec hnological conditions for obtai ning zinc-bismuth coatings with va...