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Tuning rheology and fire-fighting performance of protein-stabilized foam by actively switching the interfacial state of the liquid film

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Journal of Materials Science & Technology 2024年第11期178卷 120-132页

作者： Ke qiu Xiaoyang Yu huan li Shouxiang Lu State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei 230026China

Biomolecular self-assembly has lately emerged as an intriguing method for creating stable gas-liquid dis-persions with unique functional *** this work,protein-metal coordination complexes were designed as the stabilizer for generating ultrastable fire-fighting foam and creating interfacial architec-tures that were actively switched between"rigid"and"mobile"interfacial states of liquid films in re-sponse to changes in pH and bulk solution compositions(metal ions or alkyl polyglycosides).The re-flected light interferometric technique was used to check interfacial states,and the foaming kinetics and rheological response of aqueous solution and liquid foam were investigated by dynamic surface tension tests and oscillatory rheology *** results showed that liquid foams with mobile films with lower yield limits had a faster spreading rate to cover the burning oil,liquid foams with semi-rigid films can-not extinguish fires due to interfacial instability,and the enhanced rheology of the foam with rigid films established a robust and impenetrable barrier to effectively suppress fuel evaporation and combustion.A new correlation between interfacial properties and the fire-fighting performance of foam was proposed,which showed that the fire-extinguishing time of foam could be well correlated by the interfacial states or film lifetime rather than classical thermodynamics entry,spreading,and bridging coefficients(ESB co-efficients).

关键词： Fire-fighting foams Interfacial states Rheology Protein Surfactant

Design and testing research of liDAR for detecting atmospheric turbulence

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Optoelectronics Letters 2025年第3期21卷 172-176页

作者： qiu Duoyang li Xianyang YANG Hao ZHU Xiaomeng FANG Zhiyuan XU Xiang School of Advanced Manufacturing Engineering Hefei University Anhui Provincial Engineering Technology Research Center of Intelligent Vehicle Control and Integrated Design Technology Hefei University Science Island Branch of Graduate School University of Science and Technology of China School of Mechanical and Energy Engineering Ningbo Tech University Key Laboratory of Atmospheric Optics Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences

Atmospheric turbulence is an important parameter affecting laser atmospheric transmission. This paper reports on a self-developed atmospheric turbulence detection li DAR system (scanning differential image motion li DAR(DIM-li DAR) system). By designing and simulating the optical system of atmospheric turbulence detection li DAR,the basic optical imaging accuracy has been determined.

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Advanced Functional Electromagnetic Shielding Materials:A Review Based on Micro‑Nano Structure Interface Control of Biomass Cell Walls

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Nano-Micro Letters 2025年第1期17卷 98-134页

作者： Yang Shi Mingjun Wu Shengbo Ge Jianzhang li Anoud Saud Alshammari Jing Luo Mohammed A.Amin Hua qiu Jinxuan Jiang Yazeed M.Asiri Runzhou huang Hua Hou Zeinhom M.El‑Bahy Zhanhu Guo Chong Jia Kaimeng Xu Xiangmeng Chen Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037People’s Republic of China State Key Laboratory of Efficient Production of Forest Resourced Beijing Forestry UniversityQinghua East Road 35Haidian DistrictBeijing 100083People’s Republic of China Department of Physics Faculty of Sciences‑ArarNorthern Border UniversityArar 91431Saudi Arabia Department of Chemistry College of ScienceTaif UniversityP.O.Box 1109921944 TaifSaudi Arabia Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China Integrated Composites Lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024People’s Republic of China Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr CityCairo 11884Egypt Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products International Joint Research Center for Biomass MaterialsSouthwest Forestry UniversityKunming 650224People’s Republic of China School of Science Henan Agricultural UniversityZhengzhou 450002People’s Republic of China

Research efforts on electromagnetic interference(EMI)shielding materials have begun to converge on green and sustainable biomass *** materials offer numerous advantages such as being lightweight,porous,and *** to their porous nature,interfacial compatibility,and electrical conductivity,biomass materials hold significant potential as EMI shielding *** concerted efforts on the EMI shielding of biomass materials have been reported,this research area is still relatively new compared to traditional EMI shielding *** particular,a more comprehensive study and summary of the factors influencing biomass EMI shielding materials including the pore structure adjustment,preparation process,and micro-control would be *** preparation methods and characteristics of wood,bamboo,cellulose and lignin in EMI shielding field are critically discussed in this paper,and similar biomass EMI materials are summarized and *** composite methods and fillers of various biomass materials were *** paper also highlights the mechanism of EMI shielding as well as existing prospects and challenges for development trends in this field.

关键词： Biomass materials Electromagnetic interference shielding Micro-nano structure interface control Conductivity

FAM64A promotes HNSCC tumorigenesis by mediating transcriptional autoregulation of FOXM1

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International Journal of Oral Science 2022年第3期14卷 275-286页

作者： Xinyuan Zhao huan Chen Yu qiu li Cui Stomatological Hospital Southern Medical UniversityGuangzhouChina Department of Oral and Maxillofacial Surgery the First Affiliated HospitalFujian Medical UniversityFuzhouChina School of Dentistry University of CaliforniaLos AngelesLos AngelesCAUSA

Head and neck squamous cell carcinoma(HNSCC)still lacks effective targeted ***,exploring novel and robust molecular targets is critical for improving the clinical outcome of ***,we reported that the expression levels of family with sequence similarity 64,member A(FAM64A)were significantly higher in HNSCC tissues and cell *** addition,FAM64A overexpression was found to be strongly associated with an unfavorable prognosis of *** in vitro and in vivo evidence showed that FAM64A depletion suppressed the malignant activities of HNSCC cells,and vice ***,we found that the FAM64A level was progressively increased from normal to dysplastic to cancerous tissues in a carcinogenic 4-nitroquinoline-1-oxide mouse ***,a physical interaction was found between FAM64A and forkhead box protein M1(FOXM1)in HNSCC ***64A promoted HNSCC tumorigenesis not only by enhancing the transcriptional activity of FOXM1,but also,more importantly,by modulating FOXM1 expression via the autoregulation ***,a positive correlation between FAM64A and FOXM1 was found in multiple independent *** together,our findings reveal a previously unknown mechanism behind the activation of FOXM1 in HNSCC,and FAM64A might be a promising molecular therapeutic target for treating HNSCC.

关键词： FAM64A promotes HNSCC tumorigenesis by mediating transcriptional autoregulation of FOXM1

FeCl_(3)-石墨层间化合物的制备及其对聚偏二氟乙烯膜电导率的影响

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现代化工 2025年第1期45卷 214-219页

作者：李欢周继承湘潭大学化工学院湖南湘潭411100 中国科学院上海高等研究院上海201210

以FeCl_(3)和鳞片石墨为原料,通过改进熔融盐法制得高导电的FeCl_(3)插层的石墨层间化合物(FeCl_(3)-GICs);将其作为导电填料,以聚偏二氟乙烯(PVDF)为基体,制备了具有各向异性导电的FeCl_(3)-GICs/PVDF复合导电膜。利用多种表征方法对... 详细信息

以FeCl_(3)和鳞片石墨为原料,通过改进熔融盐法制得高导电的FeCl_(3)插层的石墨层间化合物(FeCl_(3)-GICs);将其作为导电填料,以聚偏二氟乙烯(PVDF)为基体,制备了具有各向异性导电的FeCl_(3)-GICs/PVDF复合导电膜。利用多种表征方法对所制备的FeCl_(3)-GICs填料及复合导电膜进行结构分析和性能评测。结果表明,FeCl_(3)-GICs产品层间距从石墨原料的0.335 nm增加至0.94 nm;其粉末电导率从石墨原料的2.86×10^(4) S/m提高到9.09×10^(4) S/m,导电性能提高3倍以上。以FeCl_(3)-GIC为导电填料制备的复合导电膜不仅可以将PVDF膜的水平方向电导率提高10个数量级,且具有电导率分布的各向异性;此外,复合导电薄膜表现出极好的柔性与稳定性,具有良好的应用潜力。

关键词： FeCl_(3)-石墨层间化合物石墨高分子复合导电膜电导率各向异性聚偏二氟乙烯膜

Solar trough receiver with V-grooved light traps for efficiency improvement

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Science China Technological Sciences 2025年第1期 146-156页

作者： Bin liU Qing li Yu qiu School of Energy Science and Engineering Central South University

Parabolic trough collector is a promising technology for both domestic and industrial heat supplies. To enhance the collector efficiency, a modified trough receiver with dozens of V-grooved light traps incorporated into its lower-half absorber was introduced. For assessing the performance of this receiver, a solar-thermal-stress coupled model was established. Using this model, firstly, the effects of the V-grooved light traps were investigated. The results reveal that, compared to the conventional trough receiver, the modified trough receivers equipped with different traps can reduce their optical losses by 81.9–138.0 Wm-1（i.e., 15.0%–25.2%）, improving their optical efficiencies by 1.60%–2.69%. However, these traps also result in increased thermal loss from the receiver. Therefore, there is no single optimal modified trough receiver that consistently outperforms all other receivers across all possible conditions. Nonetheless, the MTR30-3 and MTR60-3 receivers emerge as the optimized choices due to their better solar-thermal performance. Subsequently, performance evaluation reveals that the two optimized receivers can enhance the receiver efficiencies within the typical solar irradiance range by 0.02%–2.65% and 0.05%–1.70% when the inlet fluid temperatures are below 488 and 523 K, respectively. Consequently, the collector efficiencies can be improved by 0.02%–2.49% and 0.05%–1.60%, respectively. Additionally, thermal stress analysis verifies that the two optimized receivers remain within safe limits under all typical conditions. Given that the heating temperature of a typical solar collector for domestic or industrial heat supply is typically below 523 K, the integration of the two optimized receivers has the capability to effectively enhance the overall collector efficiency.

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急性脑梗死患者血清骨保护素与高敏C反应蛋白水平的关系

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黑龙江医学 2017年第1期41卷 15-17页

作者：陈艳秋杨礼环蒋玉琼刘颖重庆市渝北区人民医院神经内科重庆401120

目的探讨急性脑梗死(Acute Cerebral Infarction,ACI)患者血清骨保护素(Osteoprotegerin,OPG)与高敏C反应蛋白水平(High-Sensitivity C-Reactive Protein,hs CRP)的关系。方法测定62例ACI患者(ACI组)和62例健康体检者(正常对照组)血清OPG和hs CRP含量,并收集两组研究对象的临床资料及相关检查结果,比较两组差异。结果 ACI组血清OPG和hs CRP水平均明显高于正常对照组(P<0.05);直线相关分析显示血清OPG与hs CRP水平呈显著正相关(P<0.05);多元逐步回归分析显示血清OPG水平与年龄、体质指数、血糖、收缩压、舒张压、hs CRP呈明显正相关(P<0.05)。结论 ACI患者血清OPG和hs CRP水平均明显升高,血清OPG可能为ACI患者发病的重要炎症生物标志物。

关键词：急性脑梗死骨保护素超敏C反应蛋白

Recent advances on monolithic perovskite-organic tandem solar cells

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Interdisciplinary Materials 2024年第1期3卷 113-132页

作者： Guanshui Xie huan li Longbin qiu Shenzhen Key Laboratory of Intelligent Robotics and Flexible Manufacturing Systems Department of Mechanical and Energy EngineeringSUSTech Energy Institute for Carbon NeutralitySouthern University of Science and TechnologyShenzhenChina

Perovskite-organic tandem solar cells(TSCs)have emerged as a groundbreaking technology in the realm of photovoltaics,showcasing remarkable enhancements in efficiency and significant potential for practical ***-organic TSCs also exhibit facile fabrication surpassing that of all-perovskite or all-organic TSCs,attributing to the advantageous utilization of orthogonal solvents enabling sequential solution process for each *** perovskite-organic TSCs capitalize on the complementary light absorption characteristics of perovskite and organic *** is a promising prospect of achieving further enhanced power conversion efficiencies by covering a broad range of the solar spectrum with optimized perovskite absorber,organic semiconductors as well as the interconnecting layer's optical and electrical *** review comprehensively analyzes the recent advancements in perovskite-organic TSCs,highlighting the synergistic effects of combining perovskite with a low open-circuit voltage deficit,organic materials with broader light absorption,and interconnecting layers with reduced optical and electrical ***,the underlying device architecture design,regulation strategies,and key challenges facing the high performance of the perovskite-organic TSCs are also discussed.

关键词： interconnecting layer narrow‐bandgap organic solar cells recombination layer tandem solar cells wide‐bandgap perovskite solar cells

Cyro-EM structure of human mGlus:leading therapeutic potential to neurological diseases

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Signal Transduction and Targeted Therapy 2021年第9期6卷 2603-2604页

作者： huan Xiao qiu Sun State Key Laboratory of Biotherapy and Cancer Center West China HospitalSichuan University and Collaborative Innovation Center for BiotherapyChengduChina

Recently,lin et al.1 and Du et al.2 have published two papers in Nature,unveiling the full-length structures of metabotropic glutamate receptors(mGlus)of their homologous and heterodimers,and illustrating their conformational change from inactive to fully activated state,which provides a mechanistic basis for a comprehensive understanding of class C G-protein-coupled receptors(GPCRs).

关键词： inactive conformational structure