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The purpose of this essay is to review one of Frazad Qaemi’s papers: “Why Does Ferīdōn mean the "Third"? Decoding the Mystery of Ferīdōn’s Name According to Function Analysis of Myth: A Study in Historical Linguistics (Diachronic Etymology)”. The paper shows the writer was not specialist in the subject matter he discussed. Due to his unfamiliarity with the concepts, initial knowledge and the resources of this area, made his analysis and conclusions were flawed. Nevertheless, the way he refers to other works is too unaccustomed, they mostly show that the writer, Qaemi, trying to refer his incorrect thoughts and analysis to reliable sources, and with this technique, he was trying to prove the audience that his incorrect analysis and ideas are correct. Aside from that, Qaemi, used the analysis and accomplishment of other writers, but unfortunately, he did not refer to them in his paper, implying that they were his own, which is clearly plagiarism. The paper contains many errors, making it a good example for methodology courses as it shows students what they should avoid in a journal paper. [ABSTRACT FROM AUTHOR]

In this paper, the modeling of the system under study was first proposed and then a fuzzy-PID controller was designed considering the downstream filter for optimal system performance to simulate the stability of a nonlinear system and to simulate low frequency oscillations. In designing the proposed controller, the parameters of controller and fuzzy members were considered as the variable, which ultimately turns into an optimization issue. The controlling structure of the proposed PID is such that, regardless of type and structure of the system under study, it can guarantee the stability of the system and minimize the volatility and frequency fluctuations. The most important feature of the proposed method is its independence on the structure of the system and operating conditions. On the other hand, this paper attempts to reduce the frequency deviation of the dynamic mode by improving the frequency controller and implementing a new method. The new method is based on minimizing total sum of summing time, peak time, peak value, and permanent error state over load changes using the virus search optimization algorithm. Investigations done by different criteria in time and frequency domains, using the proposed algorithm shows high efficiency in comparison with other methods in the articles. Also, the proposed fuzzy controller has a better performance for damping system disturbances in bad situations. [ABSTRACT FROM AUTHOR]