A proprietary product such as a post-installed concrete anchor has a unique place in the engineering community that includes product design, manufacturing, testing, evaluation and design for expected service conditions. An economic model in a non-linear integer programming form is proposed for...

In a bilevel decision problem, both the leader and the follower may have multiple objectives, and the coefficients involved in these objective functions or constraints may be described by some uncertain values. To express such a situation, a fuzzy multi-objective bilevel (FMOBL) programming...

In the last decade the development of the economical and social life increased the complexity of transportation systems. In this context, the role of Decision Support Systems (DSS) became more and more important. The paper presents the characteristics, necessity, and usage of DSS in...