In this paper a fuzzy logic (FL) based load frequency controller (LFC) called discrete FuzzyP+FuzzyI+FuzzyD (FP+FI+FD) is proposed to ensure the stability of a multi-source power system in restructured environment. The whale optimization algorithm (WOA) is used for optimum designing the proposed control strategy to reduce fuzzy system effort and achieve the best performance of LFC task. Further...

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Southern resident killer whales in British Columbia and Washington are exposed to heavy vessel traffic. This study investigates their exposure to exhaust gases from whale-watching vessels by using a simple dispersion model incorporating data on whale and vessel behavior, atmospheric conditions, and output of airborne pollutants from the whale-watching fleet based on emissions data from regulato...

Under the background of increasing pressure satellite communication support, reasonable and efficient dispatch resources is an important means to improve utilization efficiency resources. Aiming at resource scheduling task requirements geostationary orbit system, (CSRS) model established first all, based on this, advances a kind CSRS method improved whale optimization algorithm. In this method,...

After a commercial whaling moratorium was enacted in 1986, whale watching became one of the fastest growing tourism industries worldwide. As whaling is regarded as an activity that is incompatible with whale watching, the possible resumption of commercial whaling has caused an urgent need to investigate the potential negative effects of whaling on the whale-watching industry. We examine the pot...

BACKGROUND Whale sharks are a declining species for which little biological data is available. While these animals are protected in many parts of their range, they are fished legally and illegally in some countries. Baseline biological and ecological data are needed to allow the formulation of an effective conservation plan for whale sharks. It is not known, for example, whether the whale shark...