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Cross-border students’ academic performance draws people’s attention, whereas perceived cultural distance might influence their performance with gender difference. Based on role theory, men and women present different roles in society, and women are good at perceptual, cognitive aspects, making them more sensitive to cultural distance. Finding shows that the negative moderation role of gender existed in the relationship between cultural distance and academic performance. Particularly, female students showed lower cultural adaptation after cross-border migration, which then influenced their academic performance in universities. This study provides implication for policymakers and universities to pay more attention with additional resources to support female students’ cultural adaption.

Background Internal migration or cross‐border migration differs from traditional migration. The influence of academic performance on social integration among migration or cross‐border student groups has drawn attention. Method A survey collected data from cross‐border students in Mainland China. The sample included 616 university students (bachelor's, master's, and doctoral students) coming from Hong Kong studying in Guangzhou, Guangdong Province. Results The moderating effect of cultural distance in the relationship between academic performance and social integration was significantly negative ( β = –0.081, p < 0.05 ). The effect of academic performance on social integration was significantly positive ( β = .104, p < .05). Length of time studying in the Mainland, social status, entrance exam score (which might affect the current academic performance), and acquiescence are as the control variable in examining the role of cultural distance in the effect of academic performance on social integration. This result embodies the functionalist theory. Conclusion The host society is the structural whole requiring the function of social integration, whereas education is the structural component fulfilling the function. When cultural distance is large, the function of education for social integration decreases. The practical implication for enhancing social integration is relieving or bridging the distance.

Most studies equate children’s mental health to a state of flourishing, which is a positive feeling and functions in their lives. Identity exploration and the satisfaction of three basic psychological needs are universal and crucial indicators of children’s flourishing. First, according to identity crisis theory, children in the pre-adolescence period begin to explore their own identities, a process which significantly affects their development and flourishing. Meanwhile, self-determination theory points out that the basic psychological needs, namely the needs for autonomy, competence, and relatedness, are essential for children’s development and flourishing in the worldwide. Accordingly, this study examined how identity exploration affects the flourishing of rural children in China, one kind of collectivism cultural contexts, with the interaction effect of identity exploration and basic psychological needs satisfaction. To understand the interaction effect of identity exploration and basic psychological needs satisfaction on rural children’s flourishing, we form a theoretical framework combining identity crisis theory and self-determination theory. Both these two theories emphasize the importance of self in facilitating mental health and the development of functioning. Specifically, identity crisis theory focuses on intrapsychic process, while self-determination theory stresses the influence of the surrounding environment on the individual, which provides a solid foundation for integrating these two theories to explore rural children’s flourishing in China. Accordingly, this study collected 520 left-behind children and 475 other rural children in Liaoning Province in Mainland of China, and used regression analysis to measure the associations among variables. This study found that identity exploration and basic psychological needs satisfaction positively affect rural children’s flourishing respectively, while their interaction effects negatively affect on their flourishing.

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The nature of the effect of learning environments’ language setting on second language receptive vocabulary acquisition in both adolescent receptive vocabulary acquisition and reading comprehension performance was explored in a continuous 10-month longitudinal study. The current study divided 170 adolescents into four groups. Their reading comprehension ability and receptive vocabulary size were each measured in two different periods. The results showed that single Chinese instructional learning and single English instructional learning contributed more to students’ receptive vocabulary size than bilingual instructional language materials. The results imply that the immersion hypothesis has more positive impact on improving second language receptive vocabulary size acquisition and reading comprehension performance than the depth of processing hypothesis.

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Large volume multi-layered high pressure hydrogen storage vessel is one of the vital equipment in hydrogen refueling station. However, the possibility of leakage from container nozzles during service remains a safety concern. In this paper, a leakage model modified by the real gas equation of state and a three-dimensional (3D) computational fluid dynamics (CFD) model based on the real hydrogen refueling station layout are established to simulate the whole process of hydrogen diffusion and explosion after the large volume vessel leak. The influences of leakage direction, leakage height, hydrogen storage pressure and wind speed on the distribution of flammable hydrogen are studied, as well as the scope of overpressure harmful area is respectively predicted when the real hydrogen cloud is ignited at different times. Results indicate that the high-pressure hydrogen jet over 30MPa diffuses in a wide range near the surface under momentum control. And the smaller the leakage source height is, the more obvious the Coanda effect is. In addition, igniting after hydrogen leakage in a very short time (such as 0.5 s) will lead to higher maximum overpressure, and igniting after a long time will form a larger dangerous area. Compared with the seamless hydrogen storage cylinder group, the hydrogen explosion hazard of vertical large volume multi-layered hydrogen storage vessel is significantly alleviated after leakage. Also, setting a certain height of isolation walls outside the hydrogen storage area can effectively reduce the risk and consequences of accidents.