There are a huge number of harmonics in the railway power supply system.Accurately estimating the harmonic impedance of the system is the key to evaluating the harmonic emission level of the power supply system.A harmonic impedance estimation method is proposed in this paper, which takes the Gaussian mixture regression (GMR) as the main idea, and i

The marketing practice involved with virtual idols became popular, leading to the emergence of virtual idol marketing.However, there is a lack of scientific understanding of this emerging marketing field.To promote a fundamental understanding of virtual Headwear idol marketing, this study clarifies the conceptual boundary of virtual idols and provi

Decades have passed, but female fans who like male idols are still stigmatized, judged, and reduced to exist in society and popular culture.This is also what happened to ARMY, fans of the male idol group BTS.The research uses a qualitative research methodology elaborated through a feminist perspective to discuss how ARMYs are stigmatized because of