Methane from environmentally friendly anaerobic digestion may be an alternative non-renewable source that is depleting. One of the substrates for process lignocellulose-based materials. The article concerns comparing environmental impact as well technical and energy indicators ways producing methane Pennisetum hybrid. Five scenarios were analyzed: production raw grass, grass subjected to alkali...

in this paper a fuzzy analytical network process model for supporting the vendor selection process in strategic situations is suggested. first, the vendor evaluation problem is putting together by use of the multi-criteria decision-making (mcdm) approach and a five-step hybrid process, which incorporates the technique of fuzzy analytical network process. then the modified topsis (technique for ...

The existence of an active and prosperous capital market is always recognized as one of the signs of international development in the countries. The most important issue faced by investors in these markets is the decision to choose the appropriate securities for investment and formation of optimal portfolio. The rating of companies accepted in stock exchange is a complete mirror of their status...

for the proper use of water resources in agriculture, it is necessary to provide appropriate irrigation system to supply crop water requirement. in the present research, using a hierarchical analysis, different types of irrigation systems were evaluated and prioritized on 1150 hectares of agricultural land of etka organization ​​ located in dorud, iran. hierarchical analysis process is one of t...

Solid waste has become one of the greatest challenges for developing countries to understand how manage large quantities in a sustainable way. The aim this study is identify and analyse most suitable site solid landfills Kano Metropolis. objective determine spatial distribution landfills. integrated data used includes satellite images from Google Earth Pro extraction road networks, ASTER-GDEM U...