“Challenges of Science” - 2024

Materials of International Scientific-Practical Internet Conference “Challenges of Science”

ISSN 2707-9481, ISBN 978-601-80473-3-6, 22 November 2024, Issue VII

Title: On the optimal ratio of the hardness of wheel and rail steel, ensuring minimal wear of the wheel-rail friction pair

Authors: Moldakhmetova A.,Kanaev A.

Abstract: In this work, to identify the optimum between the hardness of the wheel and the rail, which ensures minimal wear, methods were used to determine wear by mass loss (volumetric wear) and by micrometric measurement of the size of the imprint (linear wear). It has been shown that the optimal range of wheel and rail hardness, determined by measuring (reducing) the size of the indentation, is in the range of 1.38-1.55. This interval practically confirms the wear identified by mass loss of 1.41-1.58. Based on these data, it is recommended to use the average value of the ratio between them, namely, 1.39-1.56 (HVк556-655, HVр400-420), which does not violate the objectivity and accuracy of measurements, both when determining volumetric and linear wear. It is noted that there is no magic relationship between the hardness of a wheel and a rail; there is only an optimal hardness for wheels and rails, determined by several internal (chemical composition, structure, properties, etc.) and external (friction coefficient, degree of slippage, presence or absence of lubrication, axle loads, etc.) factors.

Keywords: wheel, rail, hardness ratio, friction pair, wear, weighing, sample mass, measurement, print size.

Cite this article as: Moldakhmetova, A., Kanaev, A. (2024). On the optimal ratio of the hardness of wheel and rail steel, ensuring minimal wear of the wheel-rail friction pair. Challenges of Science. Issue VII, 2024, pp. 5-10. https://doi.org/10.31643/2024.01

Title: Impact of online language learning on psychological well-being

Authors: Ketebayeva E., Kassymova G., Ponniah K., Makhmut A.

Abstract: The topic of the impact of online language learning on psychological well-being is gaining increasing attention due to the shift towards digital learning platforms. Online language learning offers convenience, flexibility, and a wide range of resources, which can positively influence individuals' self-confidence, cultural understanding, and sense of achievement. This study examines the influence of online language learning platforms on psychological aspects. The study was conducted through a google form survey consisting of 10 questions in Almaty, Kazakhstan. Research shows that using online language learning platforms can make people feel happier and less stressed. Learning a new language online reduces loneliness and provides confidence. These platforms can also help improve communication skills and understanding of different cultures. Setting goals, tracking progress, and receiving rewards on these platforms can help keep people motivated and interested in the learning process. The results, presented through tables and detailed analysis, indicate the positive impact of online language learning on reducing feelings of isolation, enhancing stress levels, and improving communication skills. The findings shed light on the potential benefits of online platforms in promoting psychological well-being through accessible learning opportunities.

Keywords: students, online platforms, learning, psychology, stress, motivation, communication.

Cite this article as: Ketebayeva, E., Kassymova, G., Ponniah, K., Makhmut, A. (2024). Impact of online language learning on psychological well-being. Challenges of Science. Issue VII, pp. 11-19. https://doi.org/10.31643/2024.02

Title: Language as a mirror of the people

Authors: Dzhambulova Zh., Serik A., Orynbayeva A., Rzabayeva D.

Abstract: This article explores the connection between language and culture, arguing that language is indeed a mirror of the people. By analyzing linguistic features and expressions, we uncover the essence of society, its history, and values. Viewing language as a reflection of collective experience, we understand that it not only conveys information but also expresses identity and cultural heritage. Language serves as a reflection of a society's culture, values, and collective identity. In this article, we endeavor to explore the challenges encountered by educators in the classroom while instructing a foreign language. Through comprehensive examination and analysis, we aim to identify the various hurdles that teachers confront in this endeavor. By delving into factors such as linguistic differences, cultural barriers, student engagement levels, and resource limitations, we seek to shed light on the multifaceted nature of these obstacles. Additionally, we strive to provide insights and potential strategies for overcoming these challenges, thereby facilitating more effective foreign language instruction in educational settings.

Keywords: mirror, people, linguistics, identity, students, interculture.

Cite this article as: Dzhambulova, Zh., Serik, A., Orynbayeva, A., Rzabayeva, D. (2024). Language as a mirror of the people. Challenges of Science. Issue VII, pp. 20-25. https://doi.org/10.31643/2024.03

Title: A Bibliometric Review on Exploring Digital Literacy Assessment Dynamics in Education

Authors: Begimbetova G.A., Retnawati H., Ndayizeye O., Flindt N., Kassymova G.K.

Abstract: The increasing role of technology in education underscores the need for strong digital literacy skills among teachers. However, assessing these skills in pre-service teachers remains an under-researched area. This study employed a quantitative approach with the help of RStudio, analyzing 664 articles (2015-2024) to investigate trends and patterns in digital literacy assessment for teacher education. The analysis revealed a robust field with a 5.07% annual growth rate and strong author collaboration (only 58 single-authored works). Average citations per document (24.08) indicated impactful research, with China emerging as a leading contributor. Beyond mere skills testing, keyword analysis uncovered broader research themes like education, e-learning, and digital technologies. Network analyses further highlighted the interdisciplinary nature of the field. This study emphasizes the need for comprehensive assessment tools encompassing the multifaceted aspects of digital literacy to ensure teacher students' preparedness for the modern educational landscape.

Keywords: digital literacy, cognitive tests, teacher, students, education.

Cite this article as: Begimbetova, G.A., Retnawati, H., Ndayizeye, O., Flindt, N., Kassymova, G.K. (2024). A Bibliometric Review on Exploring Digital Literacy Assessment Dynamics in Education. Challenges of Science. Issue VII, pp. 26-37. https://doi.org/10.31643/2024.04