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The transport safety of radioactive material is of utmost significance, which is mainly based on the safety of packages. In accordance with the IAEA Regulations for the safe transport of radioactive material, radioactive material transport packages undergo rigorous testing under diverse transport conditions including free drop tests and thermal tests. The determination of the appropriate thickness for the insulation layer poses a challenge, as it necessitates the consideration of factors such as the dissipation of internal heat sources and protection against fire accidents. Finite element simulation is usually used for the design and testing of packages. The requirement of the cumulation effect for the drop test and thermal test makes it harder for the finite element method in testing. In this paper, a method for thickness changing of insulation layer thickness in finite element simulation was developed and verified. A radioactive material transport package is taken as an example for the cumulating effect of the drop test and the thermal test.

In recent years， non-suicidal self-injury （NSSI） has become a serious mental health problem for adolescents all over the world， which seriously threatens the mental and physical health of adolescents and attracts high attention from social circles. After the outbreak of COVID-19 pandemic at the end of 2019， the morbidity of NSSI has been increased significantly among adolescents. However， the risk factors and pathogenesis of NSSI in adolescents are still unclear. In this article， the epidemiology， risk factors and pathogenesis of NSSI in adolescents were reviewed， aiming to provide more reference for further research.

GaN-based microring lasers grown on Si are promising candidates for compact and efficient light sources in Si-based optoelectronic integration and optical interconnect due to their small footprints, low mode volume, low power consumption, and high modulation rate. However, the high symmetry of circular microcavity leads to isotropic emission, which not only reduces the light collection efficiency, but also affects other adjacent devices during data transmission. In this study, the unidirectional lasing emission of room-temperature current-injected GaN-based microring laser was realized by coating metal Ag on the microring sidewall and integrating a direct coupled waveguide. The light was efficaciously confined in the cavity and only emitted from the waveguide, which avoided optical signal crosstalk with other adjacent devices. Furthermore, we integrated a microdisk at the other end of the waveguide as a photodetector, which could effectively detect the output power of the microring laser from the direct coupled waveguide. Therefore, a preliminary on-chip integration of GaN-based microring laser, waveguide and photodetector on Si substrate was successfully demonstrated for the first time, opening up a new way for on-chip integration and optical interconnect on a GaN-on-Si platform.

Parental divorce has been extensively documented as a risk factor for adolescent psychosocial functions. However, recent empirical findings argue that adolescents following parental divorce are not disadvantaged, indicating that adolescents' reactions to parental divorce may vary substantially. Given these mixed findings in the existing literature, the current study uses a person-centered approach to explore psychosocial adjustment profiles in Chinese adolescents and compare these emerging profiles between adolescents from divorced and intact families. Likewise, this study investigates the direct and interactive effects of paternal attachment, maternal attachment, adolescent's gender, and family structure (divorced vs. intact) on these emerging profiles. A total of 681 adolescents aged 13 to 18 years old (M.sub.age = 15.64; SD = 1.59) were involved in this study. Of these adolescents, 237 adolescents (59% girls) were from divorced families, and 444 adolescents (66% girls) were from intact families. The results of a latent profile analysis showed four empirically driven adjustment profiles: severely maladaptive, slightly maladaptive, indifferent, and adaptive. Adolescents from divorced families exhibited a higher proportion of the severely maladaptive profile and a lower percentage of the adaptive profile than those from intact families. Moreover, the results of a multinomial logistic regression exhibited that parental divorce enhanced the probability of being members of the maladaptive profile (vs. the adaptive profile) for boys. In addition, girls from divorced families with secure maternal attachment were more likely to be members of the adaptive profile (vs. the slightly maladaptive). The current findings indicate that Chinese adolescents following parental divorce exhibit a maladaptive pattern of psychosocial functions, and this maladjustment pattern is particularly heightened for boys. Secure maternal attachment significantly contributes to girls' (but not boys') post-divorce adaptive functions., Author(s): Xiaoyu Lan [sup.1] , Qian Sun [sup.2] Author Affiliations: (1) grid.20513.35, 0000 0004 1789 9964, Faculty of Psychology, Beijing Normal University, , No.19 Xinjiekouwai Street, 100875, Beijing, China (2) [...]