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Graphene Aerogel Composites with Self‑Organized Nanowires‑Packed Honeycomb Structure for Highly Efficient Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第2期17卷 533-547页

作者： Xiao You Huiying Ouyang Ruixiang Deng Qiuqi Zhang Zhenzhong Xing Xiaowu Chen qingliang shan Jinshan Yang Shaoming Dong State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Key Laboratory of Inorganic Coating Materials CAS Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210People’s Republic of China School of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China University of Chinese Academy of Sciences Beijing 100039People’s Republic of China

With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave ***,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss *** macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene *** unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric ***,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 ***,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.

关键词： Hierarchical porous structure Interface High-temperature resistance Graphene aerogel composites Electromagnetic wave absorption

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Synthesis of SiOC@C ceramic nanospheres with tunable electromagnetic wave absorption performance

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Journal of Advanced Ceramics 2024年第9期13卷 1394-1408页

作者： Junjie Qian Dandan Ma Xiaoling Zhou Huoming Liao qingliang shan Shaohua Wang Yongqing Wang Xiaojun Zeng School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403China School of Mechanical and Electronic Engineering Jingdezhen Ceramic UniversityJingdezhen 333403China School of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China

SiOC-based ceramics are considered promising electromagnetic wave-absorbing materials because of their lightweight,high-temperature resistance,and heat insulation ***,SiOC@C ceramic nanospheres were prepared using a liquid-phase method combined with a polymer-derived ceramic(PDC)method,followed by heat treatment in N_(2) and Ar atmospheres at different *** morphology,microstructure,phase composition,and electromagnetic wave absorption performance of the SiOC@C ceramic nanospheres were investigated in *** SiOC@C ceramic nanospheres obtained in the Ar atmosphere showed a minimum reflection loss(RL_(min))of−67.03 dB,whereas the SiOC@C ceramic nanospheres obtained in the N_(2) atmosphere exhibited an RLmin value of−63.76 *** outstanding electromagnetic wave absorption performance of the SiOC@C ceramic nanospheres was attributed to the synergistic effect between conductive loss,interfacial/defect polarization loss,multiple reflections,and ***,this research provides valuable insights into the design and fabrication of SiOC ceramic-based electromagnetic wave absorbers.

关键词： SiOC ceramic nanospheres electromagnetic wave absorption performance polymer-derived ceramics(PDCs) free carbon

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Effect of BNNTs/matrix interface tailoring on toughness and fracture morphology of hierarchical SiC_f/SiC composites

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Journal of Advanced Ceramics 2019年第4期8卷 555-563页

作者： Guangxiang ZHU Qian FENG Jinshan YANG Jianbao HU Hongda WANG Yudong XUE qingliang shan Shaoming DONG State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China University of Chinese Academy of Sciences Beijing 100049China Analysis and Testing Center Donghua UniversityShanghai 201600China

A thin BN interphase is applied on BNNTs surface to tailor the interfacial bonding between BNNTs and SiC matrix in hierarchical SiCf/SiC composites. The thickness of BN interphase ranging from 10 to 70 nm can be optimized by chemical vapor deposition after BNNTs are in situ grown on SiC fiber surface. Without BN interphase, the fracture toughness of hierarchical Si Cf/Si C composites can be impaired by 13.6% due to strong interfacial bonding. As long as BN interphase with 30–45 nm thickness is applied, the interfacial bonding can be optimized and fracture toughness of hierarchical composites can be improved by 27.3%. It implies that tailoring BNNTs/matrix interface by depositing a layer of BN interphase is in favor of activating energy dissipation mechanisms at nanoscale induced by BNNTs.

关键词： boron nitride nanotubes(BNNTs) interface nanocomposites toughness and toughening

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航空发动机用自愈合碳化硅陶瓷基复合材料研究进展

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航空制造技术 2023年第19期66卷 48-58页

作者：单庆亮胡建宝李浩林杨笑言苟凌轩陈建军浙江理工大学杭州310018 中国科学院上海硅酸盐研究所上海201899

为满足高性能航空发动机在高温燃气环境下长时间使用要求,碳化硅基自愈合陶瓷基复合材料(SHCMC)正朝着抗高温水蒸气侵蚀的方向发展。本文首先从SHCMC的应用要求出发,阐述了SHCMC的结构设计原则;并以近年来SHCMC的氧化研究进展为出发点,... 详细信息

为满足高性能航空发动机在高温燃气环境下长时间使用要求,碳化硅基自愈合陶瓷基复合材料(SHCMC)正朝着抗高温水蒸气侵蚀的方向发展。本文首先从SHCMC的应用要求出发,阐述了SHCMC的结构设计原则;并以近年来SHCMC的氧化研究进展为出发点,详细综述了目前SHCMC所面临的挑战;在此基础上,从提高自愈合玻璃相高温水蒸气条件下稳定性出发,介绍了目前SHCMC的研究进展。一种在水蒸气条件下具有宽温区高效愈合能力的陶瓷基复合材料符合未来发展的趋势。

关键词：航空发动机陶瓷基复合材料热端部件自愈合抗氧化性能高温水蒸气玻璃相高温稳定性

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Achieving novel copper-steel joints with a combination of high strength and ductility reinforced by in-situ Fe-rich particles

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Journal of Materials Science & Technology 2024年第15期182卷 231-245页

作者： Wu-qingliang Peng Qiang Li Yu-Ping Xu Hai-shan Zhou Guang-Nan Luo Institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China

Strength and ductility are typically mutually exclusive in traditional copper-steel *** work pro-poses a strategy to overcome the inherent trade-off between strength and ductility through high speed electron beam welding with a preferred deflection to facilitate the in-situ formation of Fe-rich particles in the Cu *** Fe-rich particles with an average diameter of 178.5 nm feature a 3D spatial network distribution across practically the entire *** obtained joint reinforced with such Fe-rich particles achieves ultimate high tensile strength(413 MPa)while maintaining excellent ductility(22%).The im-proved strength of the copper-steel joint is derived from the combined effects of dislocation strengthen-ing and grain refinement strengthening,while the increase in room-temperature ductility is mainly due to the high Schmid factor up to 0.454,which promotes the primary slip system to initiate easily during tensile *** work provides a novel perspective on creating copper-steel joints in terms of achieving microstructural refinement and outstanding strength-ductility synergy.

关键词： Copper-steel joints In-situ Fe-rich particles 3D spatial network-microstructure Electron beam welding

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A pilot study of precision treatment for patients with lung cancer pain by Longteng Tongluo recipe(龙藤通络方)using serum genomics

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Journal of Traditional Chinese Medicine 2024年第5期44卷 1006-1016页

作者： WU Ruixin FANG qingliang GUAN Sisi WEI Xianglong shan Mengjun MAO Zhujun GONG Yabin XU Ling ZHOU Di DONG Changsheng Preclinical Department Shanghai Municipal Hospital of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghai 201203China School of Traditional Chinese Medicine Shanghai University of Traditional Chinese MedicineShanghai 200071China Department of Oncology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Department of Oncology the Third Affiliated Hospital of Henan University of Traditional Chinese MedicineZhengzhou 450003China Department of Oncology Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China Cancer Institute of Traditional Chinese Medicine/Department of Oncology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai200032China

OBJECTIVE:To investigate the efficacy of Longteng Tongluo recipe(龙藤通络方,LTTL)combined with threestep analgesia for the treatment of lung cancer pain,and the changes in serum miRNA expressions before-and after treatment with LTTL and its correlation with lung cancer *** possible mechanism underlying LTTL effects on the treatment of lung cancer pain was ***:The pilot study was conducted at the oncology ward of the Yueyang Hospital and the Longhua Hospital between March 2018 and October 2019.A prospective,single-blind,placebo controlled,randomized clinical trial of LTTL or placebo combined with three-step analgesia treatments were administered to 24 cancer pain patients diagnosed with lung *** efficacy was investigated as the primary *** morphine consumption and numerical rating scale(NRS)scores were used as the secondary *** the present study,we utilized deep sequencing techniques to compare the differential miRNA expressions in serum samples obtained from two groups:the lung cancer pain treatment group(LTTL+three-step analgesia)and the control group(placebo+three-step analgesia).Next,we employed the target prediction database to investigate the target genes for differential miRNA expressions and Gene Ontology(GO)analysis along with Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway enrichment analysis to examine the roles and the major biochemical and signaling pathways related to the differentially expressed target genes,***:LTTL treatment significantly reduces the NRS score(P=0.021)as compared to those before treatment,along with significant reductions in the total morphine equivalent consumption(P=0.007)and the average daily equivalent morphine consumption(P=0.003)as opposed to the control *** expressions of 31 miRNAs differed considerably between the two groups of patients(≥2 times up-modulated or down-regulated between these groups,P<0.05).For instance,the miRNAs expression levels for

关键词： lung neoplasms pain neoplasm metastasis high-throughput nucleotide sequencing Longteng Tongluo recipe MicroRNA-chip Supporting information

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Interseismic and coseismic displacements of the Lushan Ms 7.0 earthquake inferred from leveling measurements

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Chinese Science Bulletin 2014年第36期59卷 5129-5135页

作者： Ming Hao qingliang Wang Liwei Liu Qi Shi Second Monitoring Center China Earthquake Administration Geodetic Data Processing Center National Administration of SurveyingMapping and Geoinformation

By using precise leveling data observed between 1985 and 2010 across the south section of the Longmenshan fault zone,and eliminating the coseismic displacements caused by the Wenchuan Ms 8.0 earthquake,the interseismic vertical deformation field was *** result shows that the Lushan region,located between the Shuangshi–Dachuan fault(front range of the Longmenshan fault) and the Xinkaidian fault(south section of the Dayi fault),is situated in the intersection zone of positive and negative vertical deformation gradient zones,indicating that this zone was locked within 25 years before the Lushan *** on leveling data across the rupture zone surveyed between 2010 and 2013,and by eliminating the vertical deformation within 3 years before the earthquake,the coseismic vertical displacement was *** coseismic vertical displacement for the benchmark DD35,which is closest to the epicenter,is up to198.4 mm(with respect to MY165A).The coseismic displacement field revealed that the northwest region(hanging wall) moved upwards in comparison with the southeastern region(foot wall),suggesting that the seismogenic fault mainly underwent thrust *** comparing the coseismic and interseismic vertical deformation fields,it was found that the mechanisms of this earthquake are consistent with the elastic rebound theory; the elastic strain energy(displacement deficit) accumulated before the Lushan earthquake was released during this quake.

关键词：同震位移测量数据地震前庐山龙门山断裂带弹性应变能垂直变形发震断层

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基于BSC的众包创新项目风险识别模型构建及应用研究

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科技管理研究 2021年第19期41卷 33-40页

作者：孟庆良单慧云杭益江苏科技大学服务制造模式与信息化研究中心江苏镇江212003 江苏科技大学经济管理学院江苏镇江212003

考虑到平衡计分卡(Balanced Scorecard,BSC)具有平衡组织内外部要素、兼顾结果与驱动结果的因素、综合财务与非财务目标等优势,从战略视角构建基于BSC的众包创新战略地图,从财务、客户、内部流程、学习与成长四个维度识别影响众包创新... 详细信息

考虑到平衡计分卡(Balanced Scorecard,BSC)具有平衡组织内外部要素、兼顾结果与驱动结果的因素、综合财务与非财务目标等优势,从战略视角构建基于BSC的众包创新战略地图,从财务、客户、内部流程、学习与成长四个维度识别影响众包创新目标实现的不确定性因素,得到众包创新项目的风险识别体系。提出整合模糊证据推理、灰色关联分析与FMEA模型的众包创新项目风险评价方法,并以海尔HOPE创新生态平台的“全光谱光源植物生长灯”项目开展应用研究。结果表明,接包方机会主义行为,知识产权归属不明,开放性文化冲突三项风险对该项目后续研发过程的影响最大,并提出相应对策,验证模型与方法的可行性与有效性。

关键词：众包创新风险识别平衡计分卡 FMEA模型

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飞行目标航迹显示中的数据拟合方法

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舰船电子工程 2016年第12期36卷 55-57,169页

作者：陈庆良高山姬新阳中国洛阳电子装备试验中心洛阳471003 西安卫星测控中心西安710043

试验任务中,一个飞行目标往往是多台测量设备同时跟踪测量,产生基于不同设备的同时刻同目标的多批真值数据,其拟合问题在航迹显示的数据处理过程中尤为重要。论文以6台测量设备的航迹数据为例,给出了数据拟合模型及计算机求解算法,并进... 详细信息

试验任务中,一个飞行目标往往是多台测量设备同时跟踪测量,产生基于不同设备的同时刻同目标的多批真值数据,其拟合问题在航迹显示的数据处理过程中尤为重要。论文以6台测量设备的航迹数据为例,给出了数据拟合模型及计算机求解算法,并进行了仿真,结果表明拟合后的数据更接近目标真实,为今后研究多台套测量设备数据拟合,提高航显精度与时效奠定了基础。

关键词：测量航迹显示数据拟合牛顿迭代法海塞矩阵

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独立学院机械类专业创新型人才培养探索与实践

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创新创业理论研究与实践 2021年第15期4卷 58-60页

作者：单小明张广文曾庆良华北理工大学轻工学院河北唐山063000

随着国家和社会对高等教育要求的不断提高,创新型人才的培养与探索已经是独立学院发展中的当务之急。该文指出独立学院机械类专业创新型人才培养的价值,并提出当前独立学院机械类专业创新型人才培养中的问题。结合我院特点从培养目标、... 详细信息

随着国家和社会对高等教育要求的不断提高,创新型人才的培养与探索已经是独立学院发展中的当务之急。该文指出独立学院机械类专业创新型人才培养的价值,并提出当前独立学院机械类专业创新型人才培养中的问题。结合我院特点从培养目标、培养模式、教学方法、实践教学、第二课堂、师资结构六大方面出发,指出独立学院机械类专业创新型人才培养的有效策略,以期为独立学院机械类专业创新型人才的培养工作提供有益的借鉴。

关键词：独立学院创新型人才探索与实践

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