in this article we will try to investigate the market of luxury auto and for presenting some view of marketing programs, at first review the supply and demand of auto in market of iran. then we will recover the taste and behavior of costumers in this segment and list the effective factors in purchase decision and if they attend to the brands or not.  then with interview with experts using multi...

We introduce a new concept of efficiency in vector optimization. This concept, super efficiency, is shown to have many desirable properties. In particular, we show that in reasonable settings the super efficient points of a set are norm-dense in the efficient frontier. We also provide a Chebyshev characterization of super efficient points for nonconvex sets and a scalarization theory when the u...

Super-peer topologies have been found efficient and effective in heterogeneous peer-to-peer networks. Due to dominant position of super-peers, super-peer selection requires a protocol that is aware of peer capacities. Lack of global information about other peers capacity and dynamic nature of peer-to-peer networks are two major challenges that impose uncertainty in decisionmaking. SG-1, is a we...

One of the environmental issues in urban planning is finding a suitable site for constructing infrastructures such as water and wastewater treatment plants. There are numerous factors to be considered for this purpose, which make decision-making a complex task. We used an integrated fuzzy logic and multicriteria decision model to select a suitable site for establishing wastewater treatment plan...