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 article discusses the scientific and geographical features of the study of natural and cultural heritage in line with the cultural-ecological approach and the implementation of the ideas of culture of nature management.The analysis of researches of scientists-geographers in the field of heritage study allowed to conclude that the key geo-ecolog

The literature states the importance of adopting a whole-school approach to inclusion and for meeting the needs of all students.This study investigated the challenges faced by Irish-medium (IM) primary and post-primary schools in relation to providing a whole-school approach to inclusion.This was achieved through a mixed methods study where a strat

The new fatigue data sheet, No.132, discloses gigacycle fatigue properties of the A6061-T6 aluminium alloys at high stress ratios.The fatigue tests were conducted mainly by the ultrasonic fatigue testing at 20 kHz, while conventional fatigue tests at 100 Hz were also conducted for comparison.The fatigue Book test results indicated that fatigue limi