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Published in last 1 year |  In last 2 years |  In last 3 years |  All Please wait a minute... For selected: Download citations EndNote Ris BibTeX Toggle thumbnails Select Pedestrian collision and future work in the restricted indoor space: A state-of-the-art review on influencing factors, behaviors, and methods Zhenxiang Tao(陶振翔), Ying Li(李滢), Xubo Huang(黄绪勃), Yisen Wang(王一森), Rui Yang(杨锐), and Hui Zhang(张辉) Chin. Phys. B, 2025, 34 (4): 048901.   DOI: 10.1088/1674-1056/adacca Abstract （227）   HTML （0）    PDF （1335KB）（147）       Knowledge map    Emergency evacuation involves rapid transfer of individuals from hazardous areas, where limited time and space can lead to collisions. Although the collision behavior of evacuees has been studied previously, there is a lack of systematic summaries. This study used the CiteSpace visualization software to analyze keywords in the evacuation collision literature. Based on the frequency of keyword occurrence, we determined the research trend; classified the keywords; and analyzed and summarized their influencing factors, behavioral characteristics, and research methods. Clearly, the evacuation environment and emergency guidance directly affect individual behavior and emotions, mainly affecting gait adjustment and decision-making processes, which in turn determine evacuation efficiency and collision risk. In the future, emphasis should be placed on post-collision psychological activities, coping strategies, and the application of virtual and mixed reality technologies to observe the interaction between individuals and the environment and to strengthen evacuation research. Select Diamond-based electron emission: Structure, properties and mechanisms Liang-Xue Gu(顾梁雪), Kai Yang(杨凯), Yan Teng(滕妍), Wei-Kang Zhao(赵伟康), Geng-You Zhao(赵耕右), Kang-Kang Fan(凡康康), Bo Feng(冯博), Rong Zhang(张荣), You-Dou Zheng(郑有炓), Jian-Dong Ye(叶建东), Shun-Ming Zhu(朱顺明), Kun Tang(汤琨), and Shu-Lin Gu(顾书林) Chin. Phys. B, 2024, 33 (9): 098102.   DOI: 10.1088/1674-1056/ad5aec Abstract （198）   HTML （1）    PDF （3942KB）（205）       Knowledge map    Diamond has an ultrawide bandgap with excellent physical properties, such as high critical electric field, excellent thermal conductivity, high carrier mobility, etc. Diamond with a hydrogen-terminated (H-terminated) surface has a negative elaffinity (NEA) and can easily produce surface electrons from valence or trapped electrons via optical absorption, thermal heating energy or carrier transport in a PN junction. The NEA of the H-terminated surface enables surface electrons to emit with high efficiency into the vacuum without encountering additional barriers and promotes further development and application of diamond-based emitting devices. This article reviews the electron emission properties of H-terminated diamond surfaces exhibiting NEA characteristics. The electron emission is induced by different physical mechanisms. Recent advancements in electron-emitting devices based on diamond are also summarized. Finally, the current challenges and future development opportunities are discussed to further develop the relevant applications of diamond-based electron-emitting devices.