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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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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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Morphological changes in Schlemm's canal in treated and newly diagnosed untreated glaucomatous eyes

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Science China(Life Sciences) 2014年第11期57卷 1213-1217页

作者： shi guo hua FU Ling Ling LI Xi Qi JIANG Chun Hui ZHANG Yu Dong Key Laboratory on Adaptive Optics Institute of Optics and Electronics Chinese Academy of Sciences Karamay Central Hospital Department of Ophthalmology and Vision Science Eye & ENT Fudan University

A custom built 1310 nm center wavelength swept source optical coherence tomography instrument was used to measure morphological changes in treated and newly diagnosed untreated glaucomatous human Schlemm’s canal(SC).Thirty-seven primary open-angle glaucoma patients were divided into two groups depending on the patients having been treated or *** statistical results showed that there were significant differences between the treated and untreated groups’SC areas(treated,7935.6875±680.003μm2;untreated,3890.71875±871.49844μm2;P<0.001),the circumferences(treated,580.37891±44.96529μm;untreated,381.9026±41.22123μm;P<0.001),and the long diameters(treated,272.87806±25.7254μm;untreated,185.24047±19.72786μm;P<0.001).We hypothesize that,after drug treatment,the SC will expand and the morphometric values especially the areas will become larger,thus helping to reduce intraocular pressure.

关键词： ophthalmology glaucomatous Schlemm's canal morphometry

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我国部分冬小麦品种籽粒硬度及其单籽粒频率的分布

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西北植物学报 2006年第1期26卷 39-45页

作者：郭世华内蒙古农业大学农学院呼和浩特010018

籽粒硬度是小麦重要的品质性状之一，主要影响磨粉品质和食品加工品质。用单籽粒谷物硬度测定仪对252份冬小麦品种（品系）的籽粒硬度及其单籽粒频率分布进行了分析，结果表明，品种按籽粒硬度分为三类5级，63份软质品种（系）中，5级和... 详细信息

籽粒硬度是小麦重要的品质性状之一，主要影响磨粉品质和食品加工品质。用单籽粒谷物硬度测定仪对252份冬小麦品种（品系）的籽粒硬度及其单籽粒频率分布进行了分析，结果表明，品种按籽粒硬度分为三类5级，63份软质品种（系）中，5级和4级占95．2％，3级为4．8％；31份混合品种（系）中，3级占93．6％，4级和2级各3．2％；148份硬质品种（系）以1级为主，占92．4％，2级为7．6％。籽粒硬度变幅为12～104，标准差12～29。各种硬度类型皆有，且不同麦区的品种差异较大，北部和黄淮麦区品种的硬度显著高于长江中下游和西南麦区，前者以硬质为主，后者分别以混合和软质类型为主。籽粒硬度的分类与不同硬度范围单籽粒频率分布及其硬度均值有关，软质麦硬度指数小于46的籽粒占75％～98％，大于47的籽粒为6％～36％，均值为14～40，标准差12～27；硬质麦硬度指数小于46的籽粒为1％～19％，大于47的籽粒为82％～100％，硬度均值为56～104，标准差12～20；混合麦硬度指数小于46和大于47的籽粒分别为26％～75％和23％～74％，硬度均值为32～63，标准差17～29。软质或硬质品种籽粒分布集中，一致性较好；混合型品种籽粒分布分散，一致性较差。

关键词：普通小麦籽粒硬度 SKCS 分布

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南方冬麦区小麦主要品质性状的变异分析

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麦类作物学报 2005年第6期25卷 68-71页

作者：郭世华内蒙古农业大学农学院呼和浩特010018

为了明确区试小麦品种品质性状的变异,选择南方冬麦区43份代表性品种(系)于2001～2002年度分别在江苏白马湖农场、南京、江苏里下河和武汉4个区试地点种植,对其主要品质性状进行了分析.结果表明,参试品种(系)的平均籽粒硬度、籽粒蛋白... 详细信息

为了明确区试小麦品种品质性状的变异,选择南方冬麦区43份代表性品种(系)于2001～2002年度分别在江苏白马湖农场、南京、江苏里下河和武汉4个区试地点种植,对其主要品质性状进行了分析.结果表明,参试品种(系)的平均籽粒硬度、籽粒蛋白质含量、千粒重和SDS沉淀值依次分别为44、11.5%、37.8 g和10.3 mL;4个试验点品质性状稳定性较好的品种(系)频率依次为23.3%、39.5%、32.6%和7.0%,变异系数分别为5.4%～9.9%、3.4%～8.0%、5.3%～9.9%和3.0%～9.7%;稳定性较差的品种(系)频率依次为39.5%(软质或混合麦)、9.3%、44.2%和41.9%,变异系数分别为21.1%～72.7%、12.2%～74.2%、12.1%～20.3%和25.1%～62.8%.

关键词：南方麦区冬小麦品质性状

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瞳孔中心点自动定位与对准装置

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光学精密工程 2019年第6期27卷 1370-1377页

作者：王晶高峰李婉越史国华中国科学技术大学安徽合肥230026 中国科学院苏州生物医学工程技术研究所江苏省医用光学重点实验室江苏苏州215163

为了辅助无人值守式眼底筛查设备在不同光照环境下自动进行眼底成像,搭建了瞳孔中心点自动定位与对准装置,并提出了一种基于圆近似模型的算法来实现瞳孔中心点的自动定位。首先,使用二值化、轮廓提取与填充等方法对图像进行了预处理,以... 详细信息

为了辅助无人值守式眼底筛查设备在不同光照环境下自动进行眼底成像,搭建了瞳孔中心点自动定位与对准装置,并提出了一种基于圆近似模型的算法来实现瞳孔中心点的自动定位。首先,使用二值化、轮廓提取与填充等方法对图像进行了预处理,以消除噪声和光斑对后续处理的影响;接着,使用本文提出的新型的圆近似算法来实现瞳孔中心点的精准定位;最后,根据定位的瞳孔中心点位置,来控制步进电机移动平移台,从而实现图像采集视场中心和瞳孔中心的对准。为验证有效性,将文中算法、传统Hough圆算法及改进的Hough圆算法在定位精度、平均定位时间上进行了比较。本文算法的定位精度为93.33%,平均定位时间为95.67ms,比传统Hough圆检测定位精度提高了约3.5倍,定位时间减少了约68.86%,比改进的Hough圆算法检测定位精度提高了约2倍,定位时间减少了约63.11%。实验结果表明,该系统在光照参量无法严格控制的拍摄环境下,对瞳孔自动定位与对准的准确度和计算效率均有显著地提升。基本满足无人值守式眼底筛查设备的实时性、精确性、鲁棒性要求,有助于无人值守式眼底筛查设备的推广。

关键词：眼底筛查瞳孔识别圆近似自动对准

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Effect of Brn-4 on the neural stem cells differentiation into neurons

Effect of Brn-4 on the neural stem cells differentiation int...

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中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： Jin-Hong shi,guo-hua JIN Medical School of Nantong University,Nantong 226001

＜正＞In order to investigate the effect of Brn-4 on the differentiation of the neural stem cells into neurons,we transected the fimbria of hippocampi of adult SD rats,then the extracts from fimbria transected and intact hippocampi were respectively obtained after the rats were breeding 14 *** the NSCs isolated from the hippocampus of embryonic rat were expanded and divided into 3 groups as following:（1） transection group:DMEM/F12 medium containing the extract of the fimbria-transected hippocampi was added;（2） normal group:DMEM/F12 medium containing the extract of the normal hippocampi was added;（3） control group:DMEM/F12 medium without any extract was *** NSCs were cultivated and the neurons differentiated from the NSCs were detected by immunofluorescence doublelabeling of Brn-4 and MAP-2 on the 14th day after *** processing about the number of Brn-4 positive cells, the number,area and perimeter of Brn-4/MAP-2 double-labeling positive neurons and the intensity of immunofluorescence of its Brn-4 *** 7.0 statistical software was used to analyze the *** the results showed that there were Brn-4 expressing in all MAP-2 positive cells,and the number of Brn-4/MAP-2 double-labeling positive neurons was the most in the transection group,in addition,the body was the biggest,the processes was the most abundant,and the intensity of immunofluorescence was the most superior,then the growing status was slightly insufficiency in the normal group,and the control group was the last,and the differences were significant between either two groups（P＜0.01）. It is suggested that Brn-4 may play an important role in the process of NSCs differentiating into neurons after the fimbria of hippocampi was transected.

关键词： Brn-4 hippocampus neural stem cells differentiation neurons

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风标式激光导引头光电建模与仿真

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光电工程 2007年第1期34卷 4-8页

作者：高智杰张安京史国华第二炮兵装备研究院北京100085 第二炮兵驻230厂军代室北京100854

针对激光半主动式制导炸弹导引信号形成过程的数学建模,通过对风标式激光导引头光学物理结构分析,本文研究了激光导引头制导信号产生的机理,提出光电建模与几何分析相结合的技术途径,综合应用四象限探测器光电建模和弹目空间与速度空间... 详细信息

针对激光半主动式制导炸弹导引信号形成过程的数学建模,通过对风标式激光导引头光学物理结构分析,本文研究了激光导引头制导信号产生的机理,提出光电建模与几何分析相结合的技术途径,综合应用四象限探测器光电建模和弹目空间与速度空间几何角度转换的方法,建立了速度追踪导引机制下完整的导引头数学模型;基于模型进行了激光半主动式制导炸弹导引回路数学仿真和半实物仿真实验。实验结果表明,在排除盲区、失调角影响因素外,数学仿真中应用导引头数学模型解算的导引信号与半实物仿真中激光导引头的实际输出信号一致,导引头数学模型是有效的,解决了激光导引头仿真中由定性研究转为定量研究问题。

关键词：激光制导速度追踪建模半实物仿真

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多面转镜激光器扫频光学相干层析成像系统的全光谱重采样方法

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物理学报 2017年第11期66卷 106-115页

作者：樊金宇高峰孔文黎海文史国华中国科学院苏州生物医学工程技术研究所江苏省医用光学重点实验室苏州215163

在多面转镜激光器扫频光学相干层析成像系统中,激光器存在着输出光谱错位与扫频范围波动的问题.目前的重采样方法中,普遍利用互相关运算校正光谱错位,并进行大范围的截取,保证扫频范围的一致性,但这会导致成像信噪比与分辨率的降低.本... 详细信息

在多面转镜激光器扫频光学相干层析成像系统中,激光器存在着输出光谱错位与扫频范围波动的问题.目前的重采样方法中,普遍利用互相关运算校正光谱错位,并进行大范围的截取,保证扫频范围的一致性,但这会导致成像信噪比与分辨率的降低.本文用马赫-曾德尔干涉仪(MZI)采集到的干涉信号对扫频范围波动的问题进行了详细的测量与分析,其中干涉信号的解缠相位曲线的非随机性和平行性,表明该类激光器输出光谱的波长分布具备一致性.在此基础上,提出了一种用最长扫频范围的MZI干涉信号,对样品干涉信号进行时域光谱对齐、然后进行一对多插值的重采样方法.实验与分析表明,该方法利用了所有的光谱信号,保证了样品干涉信号的能量利用率,能有效提高图像的信噪比与分辨率.

关键词：多面转镜扫频激光器扫频范围重采样信号利用率

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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

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