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
SCIENTIFIC AND GEOGRAPHIC BASIS OF THE STUDY OF NATURAL AND CULTURAL HERITAGE IN THE SCHOOL OF GEOGRAPHY OF RUSSIA
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 Challenges Facing Irish-Medium Primary and Post-Primary Schools When Implementing a Whole-School Approach to Meeting the Additional Education Needs of Their Students
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
NIMS fatigue data sheet on gigacycle fatigue properties of A6061-T6 (Al-1.0Mg-0.6Si) aluminium alloy at high stress ratios
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