Combined with strain gauge measurement method, the modified split Hopkinson pressure bar was adopted to investigate the behavior of normal concrete and steel fiber reinforcement concrete exposed to 400°C and 800°C under axial impact compressive loading. The experimental results show that compared with normal temperature, the compressive strength and elasticity modulus of normal concrete exposed to 400°C and 800°C decrease obviously. The transformation of concrete exposed to high temperature in microstructure is analyzed by SEM. The influence of high temperature on macro mechanics performance is discussed.

Organizational learning, learning organizations and even learning society are popular topics among educators and government officials in this so-called knowledge era today. This article will summarize and critique various perspectives on organizational learning and learning organizations in the texts we have covered so far.

This quantitative study investigates the impact of integrating the Nursery Teacher Certificate into teacher education in Chinese vocational and technical colleges, specifically focusing on the perspectives of student teachers majoring in Early Childhood Care Education. The study aims to assess the influence of integrating the Nursery Teacher Certificate into nursery teacher education on the teaching competences of student teachers. A sample of 95 respondents, enrolled in the Early Childhood Care Education program across five vocational and technical colleges in Shaanxi, China, participated in the study. The findings reveal that integrating the Nursery Teacher Certificate has a positive impact on student teachers' knowledge, skills, and attitudes, enhancing their practical teaching competence. However, the certificate program neglects the cultivation of classroom management skills in the teacher education, highlighting the need for a more comprehensive approach to address this gap. These findings have implications for the revision of certificate curricula to incorporate explicit training in classroom management and emphasize the importance of nurturing well-rounded teaching competences. By addressing this discrepancy, teacher education programs can better prepare future nursery teacher educators for the challenges they may face in their teaching careers.

This study is based on Schema Theory to explore professional English listening teaching mode through teaching experiment.The results showed: Inputting listening teaching background knowledge can effectively improve the hearing performance of English majors,which also has a diversity for different achievement levels of students' listening.This article stressed the need to train students to establish and to improve schemata in listening teaching, thus effectively using listening strategies.Results of this study will play a reference role to optimize listening teaching.

The article systematically analyses the multi-modal factors in college English listening teaching, first, reveals the main modes of college English listening teaching, including the acoustic mode, the visual mode and the touch mode, etc. Second, analyzes these modes play different roles in the teaching of English listening. At the same time, points out the necessity and possible ways of the cultural mode teaching in college English listening teaching. The research results of this article will play a certain reference role for optimizing college listening teaching.