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Multiple Tin Compounds Modified Carbon Fibers to Construct Heterogeneous Interfaces for Corrosion Prevention and Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 507-527页

作者： Zhiqiang guo Di Lan Zirui Jia Zhenguo Gao Xuetao Shi Mukun He hua guo Guanglei Wu Pengfei Yin College of Science Sichuan Agricultural UniversityYa’an 625014People’s Republic of China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002People’s Republic of China Institute of Materials for Energy and Environment State Key Laboratory of Bio‑Fibers and Eco‑TextilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071People’s Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China

Currently,the demand for electromagnetic wave(EMW)absorbing materials with specific functions and capable of withstanding harsh environments is becoming increasingly ***-component interface engineering is considered an effective means to achieve high-efficiency EMW ***,interface modulation engineering has not been fully discussed and has great potential in the field of EMW *** this study,multi-component tin compound fiber composites based on carbon fiber(CF)substrate were prepared by electrospinning,hydrothermal synthesis,and high-temperature thermal *** utilizing the different properties of different substances,rich heterogeneous interfaces are *** effectively promotes charge transfer and enhances interfacial polarization and conduction *** prepared SnS/SnS_(2)/SnO_(2)/CF composites with abundant heterogeneous interfaces have and exhibit excellent EMW absorption properties at a loading of 50 wt%in epoxy *** minimum reflection loss(RL)is−46.74 dB and the maximum effective absorption bandwidth is 5.28 ***,SnS/SnS_(2)/SnO_(2)/CF epoxy composite coatings exhibited long-term corrosion resistance on Q235 steel ***,this study provides an effective strategy for the design of high-efficiency EMW absorbing materials in complex and harsh environments.

关键词： Electrostatic spinning Component regulation Heterogeneous interfaces Electromagnetic wave absorption Corrosion protection

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粘性是投资新常态吗？

中央财经大学学报 2018年第3期 65-75页

作者：段梦然王瑞华郭俊黄溪中央财经大学会计学院中央财经大学商学院中南财经政法大学工商管理学院

笔者以2010—2015年沪深上市公司季度数据为样本,检验国有企业和民营企业的投资粘性问题。研究发现:我国微观经济环境中普遍存在投资粘性特征,即在过度投资和投资不足情况下,企业的投资表现出非对称反应,并且主要体现在国有企业;内部治... 详细信息

笔者以2010—2015年沪深上市公司季度数据为样本,检验国有企业和民营企业的投资粘性问题。研究发现:我国微观经济环境中普遍存在投资粘性特征,即在过度投资和投资不足情况下,企业的投资表现出非对称反应,并且主要体现在国有企业;内部治理水平的提高可以降低企业的投资粘性,提高企业的投资效率,且在国有企业更为明显;进一步检验发现:过度投资时,内部治理机制发挥作用,而在投资不足时,适当地缓解融资约束可以抑制企业的投资偏离度。本文的研究为进一步了解我国上市公司投资行为以及国资委等监管部门提高国有企业投资效率提供了重要参考。

关键词：投资粘性产权性质内部治理机制

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

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西藏地区水库水温预测方法适用性研究

水电能源科学 2018年第9期36卷 68-71页

作者：宋丹华国春黄孝容朱国宇四川大学水利水电学院四川成都610065

水库水温预测方法在高海拔地区的适用性尚缺乏相关研究。对此,以旁多水库为例,运用经验公式法、垂向一维水温模型及立面二维CE-QUAL-W2水温模型对旁多水库水温进行预测。各预测结果与实测值对比表明,经验公式(张大发法和朱伯芳法)在旁... 详细信息

水库水温预测方法在高海拔地区的适用性尚缺乏相关研究。对此,以旁多水库为例,运用经验公式法、垂向一维水温模型及立面二维CE-QUAL-W2水温模型对旁多水库水温进行预测。各预测结果与实测值对比表明,经验公式(张大发法和朱伯芳法)在旁多水库的水温预测中适用性较差,垂向一维水温模型和立面二维CE-QUAL-W2水温模型预测较为科学。在西藏高海拔地区水库水温预测中,建议将垂向一维水温模型和立面二维水温模型作为水温预测的主要方法,并提出了高海拔缺资料地区水库水温预测模型的运用建议。研究成果可为西藏高海拔地区的水温预测提供参考。

关键词：水库西藏地区经验公式水温模型水温预测适用性

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贻贝的可控酶解及其酶解液的抗氧化活性

食品研究与开发 2017年第13期38卷 24-28页

作者：郭晓华黄海李玉环山东美佳集团有限公司山东日照276800 钦州学院食品工程学院广西钦州535011 日照职业技术学院海洋工程学院山东日照276826

用Alcalase对贻贝进行酶解能够得到具有抗氧化活性的酶解物。通过控制酶解时间分别得到水解度(hydrolysis degree,DH)为12%、18%、24%和30%的4种酶解物,研究其抗氧化活性。结果表明,酶解物的还原力和羟基自由基清除率均随DH升高而升高,... 详细信息

用Alcalase对贻贝进行酶解能够得到具有抗氧化活性的酶解物。通过控制酶解时间分别得到水解度(hydrolysis degree,DH)为12%、18%、24%和30%的4种酶解物,研究其抗氧化活性。结果表明,酶解物的还原力和羟基自由基清除率均随DH升高而升高,但在DH 24%~30%范围升高极缓;其DPPH自由基、超氧阴离子自由基清除率和脂质过氧化抑制率均随DH升高而呈现先增后降的趋势,最高清除率均出现在DH 24%处。DH为24%的贻贝Alcalase酶解物具有最佳的抗氧化活性。

关键词：贻贝水解度抗氧化活性酶解

Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-Yan huang Yi-De Zhang Jie Chen Hai-Di Fan Wan Wang Bin Wang Ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian guo Jian-Gang Shen Su-hua Qi School of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

Low‑Temperature Oxidation Induced Phase Evolution with Gradient Magnetic Heterointerfaces for Superior Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 191-204页

作者： Zizhuang He Lingzi Shi Ran Sun Lianfei Ding Mukun He Jiaming Li hua guo Tiande Gao Panbo Liu School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710129People’s Republic of China School of Marine Science and Technology Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China

Gradient magnetic heterointerfaces have injected infinite vitality in optimizing impedance matching,adjusting dielectric/magnetic resonance and promoting electromagnetic(EM)wave absorption,but still exist a significant challenging in regulating local phase ***,accordion-shaped Co/Co_(3)O_(4)@N-doped carbon nanosheets(Co/Co_(3)O_(4)@NC)with gradient magnetic heterointerfaces have been fabricated via the cooperative high-temperature carbonization and lowtemperature oxidation *** results indicate that the surface epitaxial growth of crystal Co_(3)O_(4) domains on local Co nanoparticles realizes the adjustment of magnetic-heteroatomic components,which are beneficial for optimizing impedance matching and interfacial ***,gradient magnetic heterointerfaces simultaneously realize magnetic coupling,and long-range magnetic ***,the synthesized Co/Co_(3)O_(4)@NC absorbents display the strong electromagnetic wave attenuation capability of−53.5 dB at a thickness of 3.0 mm with an effective absorption bandwidth of 5.36 GHz,both are superior to those of single magnetic domains embedded in carbon *** design concept provides us an inspiration in optimizing interfacial polarization,regulating magnetic coupling and promoting electromagnetic wave absorption.

关键词： Magnetic heterointerfaces Phase evolution Interfacial polarization Magnetic coupling Electromagnetic wave absorption

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基于TRIZ理论的奶罐车罐内搅拌机构设计

食品与机械 2018年第7期34卷 83-85,105页

作者：高国华黄娟刘继超北京工业大学机电学院北京100124 北京三元食品股份有限公司北京100163

针对牛奶厂人工搅拌不均匀、不充分的问题,应用TRIZ(theory of inventive problem solving)理论对整个储奶罐系统进行创新性设计。通过分析组件间相互作用,得出人工使用铁耙搅拌牛奶作用不足的结论;针对搅拌装置在工作时因高度不同而弯... 详细信息

针对牛奶厂人工搅拌不均匀、不充分的问题,应用TRIZ(theory of inventive problem solving)理论对整个储奶罐系统进行创新性设计。通过分析组件间相互作用,得出人工使用铁耙搅拌牛奶作用不足的结论;针对搅拌装置在工作时因高度不同而弯曲程度不同,运用物理矛盾分析,结合时间分离中的发明原理——动态特性,设计出一种电机驱动式、可伸缩的柔性机构。运用solidworks三维软件搭建具体的打耙机构模型,通过试验验证柔性臂工作的可行性。试验结果表明,该柔性臂能完成压缩、伸长、弯曲、扭转等姿态,可实现较大范围的搅拌。

关键词： TRIZ理论牛奶搅拌柔性臂

The potential mechanism and clinical application value of remote ischemic conditioning in stroke

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Neural Regeneration Research 2025年第6期20卷 1613-1627页

作者： Yajun Zhu Xiaoguo Li Xingwei Lei Liuyang Tang Daochen Wen Bo Zeng Xiaofeng Zhang Zichao huang Zongduo guo The First Affiliated Hospital of Chongqing Medical University ChongqingChina

Some studies have confirmed the neuroprotective effect of remote ischemic conditioning against stroke. Although numerous animal researches have shown that the neuroprotective effect of remote ischemic conditioning may be related to neuroinflammation, cellular immunity, apoptosis, and autophagy, the exact underlying molecular mechanisms are unclear. This review summarizes the current status of different types of remote ischemic conditioning methods in animal and clinical studies and analyzes their commonalities and differences in neuroprotective mechanisms and signaling pathways. Remote ischemic conditioning has emerged as a potential therapeutic approach for improving stroke-induced brain injury owing to its simplicity, non-invasiveness, safety, and patient tolerability. Different forms of remote ischemic conditioning exhibit distinct intervention patterns, timing, and application range. Mechanistically, remote ischemic conditioning can exert neuroprotective effects by activating the Notch1/phosphatidylinositol 3-kinase/Akt signaling pathway, improving cerebral perfusion, suppressing neuroinflammation, inhibiting cell apoptosis, activating autophagy, and promoting neural regeneration. While remote ischemic conditioning has shown potential in improving stroke outcomes, its full clinical translation has not yet been achieved.

关键词： Akt apoptosis autophagy cerebral perfusion cerebral vascular stenosis clinical transformation hemorrhagic stroke ischemic stroke neuroinflammation neuroprotection Notch1 PI3K remote ischemic conditioning stroke