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学者姓名：施永乾
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为克服开展真实残障人员运动实验的挑战,设计并研制了一个能够模拟残障人员和健全人员组成的异质人群运动教学实验平台.结合文献调研、可控实验、图像处理等方法,设计了通道中残障人员和健全人员组成的异质人群单向运动实验方案,模拟真实的异质人群运动过程.基于理论分析,从人员运动轨迹、典型行为特征、速度、密度、流量等角度分析异质人群的基本运动规律,结果符合经验结论,验证了该平台模拟异质人群运动的可行性和合理性.该实验平台可为交通安全、安全管理等领域的实验研究与教学创新提供参考.
Keyword ：
图像处理 图像处理 实验平台 实验平台 异质人群 异质人群 残障人员 残障人员 运动特征 运动特征
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| GB/T 7714 | 傅丽碧 , 刘宇星 , 施永乾 . 模拟残障人员和健全人员组成的异质人群运动教学实验平台设计 [J]. | 实验技术与管理 , 2025 , 42 (2) : 52-58 . |
| MLA | 傅丽碧 等. "模拟残障人员和健全人员组成的异质人群运动教学实验平台设计" . | 实验技术与管理 42 . 2 (2025) : 52-58 . |
| APA | 傅丽碧 , 刘宇星 , 施永乾 . 模拟残障人员和健全人员组成的异质人群运动教学实验平台设计 . | 实验技术与管理 , 2025 , 42 (2) , 52-58 . |
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Fire prevention and early warning systems are essential to minimize fire risks. Thermoelectric (TE) materials that convert temperature gradients into electrical signals offer a promising pathway for designing self-powered fire-warning technologies and devices; however, their practical applications are often impeded by their low output power, inefficient charge transport, and poor interfacial compatibility. Despite several relevant reviews focusing on material types, it has remained underexplored from a mechanism-driven perspective to enhance the fire prevention performance of TE strategies to date. To fill this knowledge gap, this work aims to systematically review TE materials and design strategies, e.g., structural design, energy filtering, ion doping, ionic thermoelectric effects, and interfacial engineering. This work highlights typical applications of TE-driven fire prevention systems, such as wearable sensors, distributed forest fire monitoring networks, and intelligent building safety systems. Finally, future directions are discussed, which include multifunctional integration, durability under harsh conditions, and AI-driven fire prediction, paving the way for developing intelligent, self-powered fire safety technologies. This work underpins how mechanism-oriented material design advances next-generation fire warning systems with enhanced sensitivity, environmental adaptability, and autonomous operation, thereby expediting the creation of next-generation fire-prevention system and platform.
Keyword ：
design strategies design strategies energy filtering effect energy filtering effect ionic thermoelectric effect ionic thermoelectric effect smart fire protection smart fire protection thermoelectric materials thermoelectric materials
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| GB/T 7714 | Hou, Boyou , Guo, Yong , Yang, Qingshan et al. Mechanism-Guided Thermoelectric Strategies for Smart Fire Prevention [J]. | ADVANCED MATERIALS , 2025 . |
| MLA | Hou, Boyou et al. "Mechanism-Guided Thermoelectric Strategies for Smart Fire Prevention" . | ADVANCED MATERIALS (2025) . |
| APA | Hou, Boyou , Guo, Yong , Yang, Qingshan , Tang, Long-Cheng , Shi, Yongqian , Gao, Jiefeng et al. Mechanism-Guided Thermoelectric Strategies for Smart Fire Prevention . | ADVANCED MATERIALS , 2025 . |
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Heterointerface engineering has drawn considerable interest in tuning interfacial polarization and promoting impedance matching. Therefore, it has become a key strategy for optimizing electromagnetic wave (EMW) absorption. This comprehensive review primarily focused on the EMW absorbing strategies of polymer-based materials, emphasizing the critical developments of heterointerface engineering. A possible EMW absorbing mechanism of polymer-based materials was proposed, emphasizing the synergism of multi-components, microstructure design, and heterointerface engineering. Key innovations in structural design such as porous structure, multilayered structure, and segregated structure are explored, highlighting their contributions to enhancing EMW absorption. Also, the review highlights the latest research progress of advanced conductive polymer-based and insulating polymer-based materials with desirable EMW absorption performance; their fabrication methods, structures, properties, and EMW absorption mechanisms were elucidated in detail. Key challenges on polymer-based EMW absorbing materials are presented followed by some future perspectives.
Keyword ：
component component electromagnetic wave absorption electromagnetic wave absorption Heterointerface engineering Heterointerface engineering polymer-based polymer-based structure design structure design
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| GB/T 7714 | Liu, Shan , Zhou, Dengfeng , Huang, Fang et al. Heterointerface engineering of polymer-based electromagnetic wave absorbing materials [J]. | SOFT SCIENCE , 2025 , 5 (1) . |
| MLA | Liu, Shan et al. "Heterointerface engineering of polymer-based electromagnetic wave absorbing materials" . | SOFT SCIENCE 5 . 1 (2025) . |
| APA | Liu, Shan , Zhou, Dengfeng , Huang, Fang , He, Min , Qin, Shuhao , Shi, Yongqian et al. Heterointerface engineering of polymer-based electromagnetic wave absorbing materials . | SOFT SCIENCE , 2025 , 5 (1) . |
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In order to meet the application requirements for cables in different environments, it is imperative to develop cable tapes with insulation, flame retardancy, and high strength. In this work, a new type of halogen-free flameretardant and high-strength coating was prepared by synthesizing a new phosphoramide flame retardant phenyl P-methyl-N-(8-(methylamino)octyl) phosphonamidate (PPNPP) compounded with silicon wrapped ammonium polyphosphate (SiAPP) and molybdenum trioxide (MoO3) added into thermoplastic polyurethane (TPU), and TPU/glass fiber cloth (GFC) (TPU/G-X) composites were obtained by double-sided coating on the surface of GFC and heat curing. Compared with those of the pure TPU-coated sample, the peak of heat release rate and total heat release results of the TPU/G composite containing 20 wt% SiAPP-PPNPP-MoO3 (TPU/G-SPM-1) decreased by 57.7 % and 36.8 %, respectively. In addition, the TPU/G-SPM-1 sample showed an excellent toxic gases suppression effect, i.e. the peak of carbon monoxide production rate and total carbon monoxide yield decreased by 91.4 % and 98.9 %, respectively, compared with the pure sample. The coating also imparted excellent mechanical properties to the GFC, which overcame the original defects of glass fiber such as poor abrasion resistance and brittleness, and the tensile strength of TPU/G-SPM-1 was increased by 101 % compared with that of pure GFC. This work presents a new method for the preparation of flame-retardant and mechanically strong TPU/G-X composites used as cable tapes.
Keyword ：
Flame-retardancy Flame-retardancy Glass fiber cloth Glass fiber cloth High-strength High-strength Interface engineering Interface engineering Smoke suppression Smoke suppression Thermoplastic polyurethane Thermoplastic polyurethane
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| GB/T 7714 | Shi, Yongqian , Jiang, Songqiong , Wu, Jinke et al. Constructing efficient flame-retardant coatings to enhance the performances of glass fiber cloth [J]. | COMPOSITES COMMUNICATIONS , 2025 , 56 . |
| MLA | Shi, Yongqian et al. "Constructing efficient flame-retardant coatings to enhance the performances of glass fiber cloth" . | COMPOSITES COMMUNICATIONS 56 (2025) . |
| APA | Shi, Yongqian , Jiang, Songqiong , Wu, Jinke , Chen, Zhendong , Zhang, Cancan , Zhang, Yun et al. Constructing efficient flame-retardant coatings to enhance the performances of glass fiber cloth . | COMPOSITES COMMUNICATIONS , 2025 , 56 . |
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Designing multifunctional composites with high flame retardancy and excellent electromagnetic shielding performance is of significant importance. In order to address the poor flame retardant and electromagnetic shielding performances of thermoplastic polyurethane (TPU) composites, in this work, the gamma-propyl-trimethoxysilane (KH550) functionalized silicon microencapsulated ammonium polyphosphate (SiAPP-NH2) was synthesized using interface modulation technology. Then, SiAPP-NH2 was combined with a copper metal-organic framework (MOF-Cu) through microencapsulation and electrostatic self-assembly techniques to prepare microencapsulated flame retardants (SiAPP-NH2@MOF-Cu). Subsequently, TPU composites were prepared through melt blending of SiAPP-NH2@MOF-Cu with TPU material. The results showed that the interface interaction between SiAPP-NH2@MOF-Cu and the TPU matrix was significantly enhanced. Compared to pure TPU, TPU/5SAN@1MC composite exhibited decreases of 78.7%, 51.3%, 59.3%, and 58.7% in peak heat release rate, total heat release, total smoke release, and total carbon dioxide release, respectively. In addition, TPU/1SAN@1MC/rGO composite achieved an average shielding effectiveness of 13.82 dB in the X-band, enabling its broad commercial application. This study offers a promising strategy for the fabrication of TPU composites with good flame retardant and electromagnetic shielding properties.
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| GB/T 7714 | Shi, Yongqian , Han, Junqiang , Yao, Ansheng et al. Constructing SiAPP-NH2@MOFs Core-Shell Structure Toward Hierarchical Composites With Excellent Flame Retardancy, Smoke Suppression, and Electromagnetic Interference Shielding [J]. | JOURNAL OF APPLIED POLYMER SCIENCE , 2025 , 142 (20) . |
| MLA | Shi, Yongqian et al. "Constructing SiAPP-NH2@MOFs Core-Shell Structure Toward Hierarchical Composites With Excellent Flame Retardancy, Smoke Suppression, and Electromagnetic Interference Shielding" . | JOURNAL OF APPLIED POLYMER SCIENCE 142 . 20 (2025) . |
| APA | Shi, Yongqian , Han, Junqiang , Yao, Ansheng , Liu, Miao , Wang, Bibo , Zhang, Cancan et al. Constructing SiAPP-NH2@MOFs Core-Shell Structure Toward Hierarchical Composites With Excellent Flame Retardancy, Smoke Suppression, and Electromagnetic Interference Shielding . | JOURNAL OF APPLIED POLYMER SCIENCE , 2025 , 142 (20) . |
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It is desirable but still challenging to develop mechanically durable and flame-retardant fabrics with multifunctional sensing capabilities. Here, we propose a facile layer-by-layer assembly and coating strategy to prepare electrically conductive fabric composites (CFCs) with a multiple core-shell structure for strain and temperature sensing and fire warning. MXene nanosheets are assembled onto the cotton fiber surface to construct the electrically conductive network and wrapped by the fire retardant and hydrophobic silicon rubber. The interfacial hydrogen bonding and physical adhesion between the functional layers as well as the outmost surface hydrophobicity protect MXene from air and moisture and ensure the electrical stability and durability of CFCs during mechanical deformations. The multiple shells are synergistically transformed to protective barriers during combustion, endowing the composite fabric with excellent flame retardancy. When suffering from a flame attack, CFCs show a very short response time of less than 1s with a continuous fire warning until the self-extinguishment of the flame. Benefiting from the stretchability, photothermal conversion and thermoelectric performance, CFCs can also be used for strain and temperature sensing. This work provides a rational structure design for high performance and multifunctional fire protection and warning.
Keyword ：
Fire warning Fire warning Flame-retardancy Flame-retardancy MXene MXene Strain sensing Strain sensing
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| GB/T 7714 | Li, Lv , Su, Qin , Xiao, Wei et al. Layer-by-layer assembly enables electrically conductive, hydrophobic and flame-retardant fabric composites for multifunctional sensing and fire warning [J]. | COMPOSITES PART B-ENGINEERING , 2025 , 296 . |
| MLA | Li, Lv et al. "Layer-by-layer assembly enables electrically conductive, hydrophobic and flame-retardant fabric composites for multifunctional sensing and fire warning" . | COMPOSITES PART B-ENGINEERING 296 (2025) . |
| APA | Li, Lv , Su, Qin , Xiao, Wei , Yan, Jun , Wu, Haidi , Wang, Junjie et al. Layer-by-layer assembly enables electrically conductive, hydrophobic and flame-retardant fabric composites for multifunctional sensing and fire warning . | COMPOSITES PART B-ENGINEERING , 2025 , 296 . |
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Epoxy resins (EP) is classic thermosetting material, but its flammability severely limits its usage. In this paper, a novel flame retardant (FePor@PZS) was synthesized by growing polyphosphazene (PZS) in situ onto the surface of iron porphyrin organic frameworks (FePor). Attributed to the synergistic flame retardant system of nitrogen, phosphorus and iron elements, FePor@PZS endowed excellent fire safety property to EP. Upon incorporating 2 wt% FePor@PZS, EP/FePor@PZS got an LOI value of 27.3%, achieving the V-1 level in the test of UL-94. Besides, the peak rate of heat release, release of total heat, peak rate of smoke production, production of total smoke, peak rate of CO2 production and peak rate of CO production of EP/FePor@PZS were decreased by 31.8%, 21.5%, 17.5%, 22.3%, 34.8% and 73.5%, respectively, and the quantity of residual carbon increased from 9.69% to 27.86%, compared with neat EP. FePor could break off to form a single pyrrole ring to promote the generation of the early carbon layers. Additionally, the Fe element in FePor and the P element in PZS played a role of catalytic carbonization. Meanwhile, PZS could decompose into non-combustible gases, and produce PO and HPO radicals to terminate the EP chain-opening reaction. This research gives a novel approach for the application of porphyrin derivatives in flame retardant composites. (c) 2024 The Society of Powder Technology Japan. Published by Elsevier BV and The Society of Powder Technology Japan. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
Keyword ：
Epoxy resins Epoxy resins Fire safety Fire safety Multi-element synergistic Multi-element synergistic Porphyrin organic frameworks Porphyrin organic frameworks
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| GB/T 7714 | Zhang, Jiale , Yin, Lian , Luo, Jianjian et al. Multi-element synergistic effect based on functionalized porphyrin organic frameworks: Towards for promoting fire safety of epoxy [J]. | ADVANCED POWDER TECHNOLOGY , 2025 , 36 (1) . |
| MLA | Zhang, Jiale et al. "Multi-element synergistic effect based on functionalized porphyrin organic frameworks: Towards for promoting fire safety of epoxy" . | ADVANCED POWDER TECHNOLOGY 36 . 1 (2025) . |
| APA | Zhang, Jiale , Yin, Lian , Luo, Jianjian , Zhou, Keqing , Shi, Yongqian , Yu, Bin et al. Multi-element synergistic effect based on functionalized porphyrin organic frameworks: Towards for promoting fire safety of epoxy . | ADVANCED POWDER TECHNOLOGY , 2025 , 36 (1) . |
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There is a high proportion of social groups in crowds. The influence of social groups on crowd mobility is particularly evident in emergency situations and in confined movement environments. However, studies on the characteristics of social group movement through a bottleneck with different widths are limited. Therefore, the computation and simulation are performed in a corridor with a bottleneck involving individuals and three types of groups (namely two-person, three-person and four-person groups) using a modified multi-grid model. The original multigrid model is modified by introducing interactions between pedestrians, avoidance behavior and group behavior, and validated by data from a controlled experiment. It is found that the group configuration can be adjusted to the changing scenarios during the passing movement. The movement efficiency and level of walking comfort for pedestrians are significantly improved in wider bottlenecks. Passing efficiency is evidently increased and congestion is reduced, when social groups occupy a large proportion of the crowd in a narrow bottleneck. These numerical findings may provide new insights for analyzing nonlinear pedestrian social group dynamics.
Keyword ：
Bottlenecks Bottlenecks Group behavior Group behavior Pedestrian dynamics Pedestrian dynamics Simulation Simulation The multi-grid model The multi-grid model
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| GB/T 7714 | He, Yangjian , Shi, Qingxin , Fu, Libi et al. Application of the multi-grid modelling method to pedestrian social group dynamics through a bottleneck [J]. | SIMULATION MODELLING PRACTICE AND THEORY , 2025 , 139 . |
| MLA | He, Yangjian et al. "Application of the multi-grid modelling method to pedestrian social group dynamics through a bottleneck" . | SIMULATION MODELLING PRACTICE AND THEORY 139 (2025) . |
| APA | He, Yangjian , Shi, Qingxin , Fu, Libi , Chen, Qiyi , Shen, Chenxin , Zhang, Yu et al. Application of the multi-grid modelling method to pedestrian social group dynamics through a bottleneck . | SIMULATION MODELLING PRACTICE AND THEORY , 2025 , 139 . |
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With the continuous advancement of electronic devices, flexible thin films with both thermal management functions and excellent electromagnetic interference (EMI) shielding properties have received much attention. Hence, inspired by Janus, a CNF/MXene/ZnFe2O4 @PANI composite film with an asymmetric gradient alternating structure was successfully prepared by adjusting the filler content of the conductive and magnetic layers using a vacuum-assisted filtration method. Benefiting from the magnetic resonance and hysteresis loss of ZnFe2O4 @PANI, conductive loss and dipole polarization of MXene, as well as the exclusive "absorption-reflection-reabsorption" shielding feature in the alternating multilayered films, CM&CZFP-4 G film has superior EMI shielding performance, with an EMI SE of up to 45.75 dB and shielding effectiveness of 99.99 %. Surprisingly, the composite film maintains reliable EMI shielding properties even after prolonged erosion in harsh environments such as high/low temperatures, high humidity, acids and alkalis. Furthermore, the CM&CZFP-4 G responded quickly within about 50 s and reached a maximum steady-state temperature of 235.8 degrees C at an applied voltage of 9.0 V, indicating the obtained film acquired outstanding and controllable Joule heating performance. This result was attributed to the homogeneous dispersion of MXene to build up a conductive network and endow the CNF/MXene with high conductivity. Meanwhile, the fire resistance of CM&CZFP-4 G was significantly improved compared to pure CNF, which guaranteed fire safety during its application. Additionally, contributed by long fiber entanglement of CNF, extensive hydrogen-bonding interactions and multilayer structural design, the CM&CZFP-4 G film exhibits excellent mechanical characteristics, with the tensile strength and fracture strain of 27.74 MPa and 6.21 %, separately. This work offers a creative avenue to prepare multifunctional composite films with electromagnetic shielding and Joule heating for various application environments. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Keyword ：
Alternating architecture Alternating architecture Asymmetric Asymmetric Electromagnetic interference shielding Electromagnetic interference shielding Joule heating Joule heating MXene MXene
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| GB/T 7714 | Yin, Lian , Zhang, Jiale , Luo, Jianjian et al. Janus-inspired alternating architecture CNF/MXene/ZnFe2 O4 @PANI composite films with outstanding electromagnetic interference shielding and Joule heating [J]. | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY , 2025 , 223 : 275-286 . |
| MLA | Yin, Lian et al. "Janus-inspired alternating architecture CNF/MXene/ZnFe2 O4 @PANI composite films with outstanding electromagnetic interference shielding and Joule heating" . | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 223 (2025) : 275-286 . |
| APA | Yin, Lian , Zhang, Jiale , Luo, Jianjian , Shi, Yongqian , Yu, Bin , Zhang, Sheng et al. Janus-inspired alternating architecture CNF/MXene/ZnFe2 O4 @PANI composite films with outstanding electromagnetic interference shielding and Joule heating . | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY , 2025 , 223 , 275-286 . |
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In today's digital era, electromagnetic radiation pollution and fire hazard stand as a dual-edged sword, not only diminishing the efficacy of sophisticated electronic devices but also threatening human health. As a result, the pursuit of advanced electromagnetic shielding materials with high flame retardancy has ascended to the forefront of research priorities, underscoring their crucial role in mitigating these risks. In this study, pyrrole polymerization was employed to obtain a modified PPy-MXene, which was used to construct flame retardant modified MXene aerogel composites by the 'Concreting' method. It was found that peak heat release rate, the total heat release, peak CO₂ production rate, peak smoke production rate and total smoke release of the C1M2MTFRs were reduced by 67.7 %, 46.7 %, 71.4 %, 71.7 % and 77.3 %, respectively. Furthermore, the average electromagnetic interference shielding effectiveness of C1M2MTFRs in the X-band and K-band reached 67.3 dB and 91.4 dB, respectively. It was noted that CMMTFRs had the ultra-low reflectivity (as low as 0.14). Additionally, the mechanical durability and strength of the aerogel composites were obviously enhanced, with compressive stress increased by a factor of 3.2, in comparison with that of the CNF aerogel. © 2025 Elsevier B.V.
Keyword ：
Radar shielding Radar shielding
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| GB/T 7714 | Zhang, Wei , Wang, Hengrui , Ji, Siyi et al. Mechanically durable and flame retardant CNF/PPy-MXene aerogel composites toward superior electromagnetic shielding with ultra-low reflectivity [J]. | Colloids and Surfaces A: Physicochemical and Engineering Aspects , 2025 , 723 . |
| MLA | Zhang, Wei et al. "Mechanically durable and flame retardant CNF/PPy-MXene aerogel composites toward superior electromagnetic shielding with ultra-low reflectivity" . | Colloids and Surfaces A: Physicochemical and Engineering Aspects 723 (2025) . |
| APA | Zhang, Wei , Wang, Hengrui , Ji, Siyi , Shi, Yongqian , Gao, Jiefeng , Tang, Long-Cheng et al. Mechanically durable and flame retardant CNF/PPy-MXene aerogel composites toward superior electromagnetic shielding with ultra-low reflectivity . | Colloids and Surfaces A: Physicochemical and Engineering Aspects , 2025 , 723 . |
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