water inflow is one of the most important challenges in the underground excavations. in addition to inducing working conditions and environmental problems, it decreases the stability and quality of the surrounding rocks. the direct method of measuring rock mass hydraulic conductivity consists of drilling the boreholes and observing the rate of fluid lost in the boreholes. applying this method i...

Power systems are subjected to small–signal oscillations that can be caused by sudden change in the value of large loads. To avoid the dangers of these oscillations, the Power System Stabilizers (PSSs) are used. When the PSSs can not be effective enough, installation of the Thyristor–based compensators to increase the oscillations damping is a suitable method. In this paper, a Static Synchronou...

In industrial recirculating aquaculture, the feed required by fish accounts for a major part of total expenditure. this paper, multi-factor decision making system based on aggregation FIFFB feeding behavior, water temperature T environmental factors and biomass weight W was proposed to solve problem waste under traditional mode. To verify performance model, fuzzy inference FIS model is construc...