in this paper, a model of an optimal control problem with chance constraints is introduced. the parametersof the constraints are fuzzy, random or fuzzy random variables. todefuzzify the constraints, we consider possibility levels.  bychance-constrained programming the chance constraints are converted to crisp constraints which are neither fuzzy nor stochastic and then the resulting classical op...

the purpose of this study was proposing a suitable pattern for evaluating and assessing companies. to reach this important goal, the fuzzy delphi method (fdm was employed. after the evaluation pattern was created, the fuzzy analytic hierarchy process (fahp) was used in order to find the weight of all selected factors, and the significance of each of evaluation factor was determined. next, compa...

Maintaining phosphoric slurry within the optimal temperature range is of great significance in improving the quality of the phosphoric acid product. Due to the lack of integral parts and the limited number of expert rules, general fuzzy controllers are commonly incapable of achieving accurate output. This paper proposed a novel fuzzy controller based on variable universes of discourse (VUD) to ...

The index matrix (IM) is an extension of the ordinary with indexed rows and columns. Over IMs’ standard operations are defined a lot other ones that do not exist in case. Intuitionistic fuzzy IMs (IFIMs) modification IMs, when their elements intuitionistic pairs (IFPs). Extended IFIMs whose indices columns evaluated by IFPs. Different operations, relations operators over IFIMs, some specific on...

Fuzzy Set Theory has been applied in many fields such as Operations Research, Control Theory, and Management Sciences etc. In particular, an application of this theory in Managerial Decision Making Problems has a remarkable significance. In this Paper, we consider a solution of Rectangular Fuzzy game with pay-off as imprecise numbers instead of crisp numbers viz., interval and LR-type Trapezoid...

In this paper, we define the concept of a bipolar fuzzy cosets of a bipolar fuzzy HX subgroup, bipolar anti fuzzy HX subgroup, bipolar fuzzy middle coset of a bipolar fuzzy HX subgroup and bipolar anti fuzzy HX subgroup, conjugate bipolar fuzzy HX subgroup, conjugate bipolar anti fuzzy HX subgroup and discussed some of its properties with the examples. Further we define the level subsets and lo...