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Promoting the microwave absorption performance of hierarchical CF@NiO/Ni composites via phase and morphology evolution

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International Journal of Minerals,Metallurgy and Materials 2023年第3期30卷 494-503页

作者： shipeng Wang Ziyan Liu Qiangchun Liu Baojun Wang Wei Wei Hao Wu Zijie Xu Shikuo Li Fangzhi huang Hui Zhang School of Materials Science and Engineering Anhui UniversityHefei 230601China Key Laboratory of Structure and Functional Regulation of Hybrid Materials Ministry of EducationAnhui UniversityHefei 230601China School of Chemistry and Chemical Engineering Anhui UniversityHefei 230601China School of Physics and Electronic Information Huaibei Normal UniversityHuaibei 235000Chin

Lightweight and efficient carbon-based microwave absorbents are significant in addressing the increasing severity of electromagnetic *** this study,hierarchical NiO/Ni nanosheets with a tuneable phase and morphology supported on a carbon fiber substrate(CF@NiO/Ni)were fabricated using a hydrothermal approach and post-annealing *** the annealing temperature increases,more metallic Ni is formed,and an apparent porosity appears on the sheet *** from the advantages of a three-dimensional(3D)conducting network,hierarchical porous structure,reinforced dipole/interface polarization,multiple scattering,and good impedance matching,the CF@NiO/Ni-500 composite exhibits an excellent microwave absorption performance even at a filling rate of only 3wt%.Specifically,its minimal reflection loss is-43.92 dB,and the qualified bandwidth is up to 5.64 *** addition,the low radar cross-section area of the CF@NiO/Ni composite coating confirms its strong ability to suppress electromagnetic wave *** expect that this work could contribute to a deeper understanding of the phase and morphology evolution in enhancing microwave absorption.

关键词： carbon fiber nickel nickel oxide interfacial polarization microwave absorption

高效液相色谱法测定盐酸安罗替尼胶囊中主成分含量

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中国药业 2024年第20期33卷 95-97页

作者：谢瑞杰黄蘭岚陆晖陈仕鹏黄月灵卓思珺黄敏州广西壮族自治区柳州市人民医院广西柳州545006 广西医科大学药学院广西南宁530021

目的建立测定盐酸安罗替尼胶囊中主成分含量的高效液相色谱(HPLC)法。方法色谱柱为Waters SunFire C_(18)柱(250 mmÍ4.6 mm,5μm),流动相为甲醇-乙腈-25 mmol/L磷酸二氢钾(15∶30∶55,V/V/V),流速为1.0 mL/min,检测波长为242 nm,柱温... 详细信息

目的建立测定盐酸安罗替尼胶囊中主成分含量的高效液相色谱(HPLC)法。方法色谱柱为Waters SunFire C_(18)柱(250 mmÍ4.6 mm,5μm),流动相为甲醇-乙腈-25 mmol/L磷酸二氢钾(15∶30∶55,V/V/V),流速为1.0 mL/min,检测波长为242 nm,柱温为40℃,进样量为20μL。结果盐酸安罗替尼质量浓度在24.73~395.60μg/mL范围内与峰面积线性关系良好(r=0.9999,n=6);精密度、稳定性、重复性试验结果的RSD均小于2.0%;平均加样回收率为97.90%,RSD为1.17%(n=6)。结论该方法操作简单、出峰时间短、准确度高、重复性好,可用于盐酸安罗替尼胶囊主成分的含量测定。

关键词：盐酸安罗替尼高效液相色谱法含量测定

Conductive hydrogels incorporating carbon nanoparticles:A review of synthesis,performance and applications

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Particuology 2023年第12期83卷 212-231页

作者： shipeng Zhang Bo Zhao Ding Zhang Mengdan Yang Xinguang huang Lei Han Kun Chen Xinjian Li Rui Pang Yuanyuan Shang Anyuan Cao Key Laboratory of Material Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China School of Materials Science and Engineering Peking UniversityBeijing100871China

As one of the most rapidly expanding materials,hydrogels have gained increasing attention in a variety of fields due to their biocompatibility,degradability and hydrophilic properties,as well as their remarkable adhesion and stretchability to adapt to different *** combined with carbon-based materials possess enhanced properties and new functionalities,in particular,conductive hydrogels have become a new area of research in the field of materials *** review aims to provide a comprehensive overview and up-to-date examination of recent developments in the synthesis,properties and applications of conductive hydrogels incorporating several typical carbon nanoparticles such as carbon nanotubes,graphene,carbon dots and carbon *** summarize key techniques and mechanisms for synthesizing various composite hydrogels with exceptional properties,and represented applications such as wearable sensors,temperature sensors,supercapacitors and human-computer interaction reported *** mechanical,electrical and sensing properties of carbon nanoparticles conductive hydrogels are thoroughly analyzed to disclose the role of carbon nanoparticles in these hydrogels and key factors in the ***,future development of conductive hydrogels based on carbon nanoparticles is discussed including the challenges and possible solutions in terms of microstructure optimization,mechanical and other properties,and promising applications in wearable electronics and multifunctional materials.

关键词： Conductive hydrogels Carbon nanoparticles Synthesis Performance and applications

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川东地区茅口组一段微孔特征及其主控因素

非常规油气 2022年第3期9卷 32-41页

作者：王佳蕊宋金民刘树根范建平黄士鹏李立基金鑫冯宇翔王俊柯王杉杉成都理工大学能源学院成都610059 油气藏地质及开发工程国家重点实验室成都610059 西华大学成都610039 中国石油天然气股份有限公司勘探开发研究院北京100083

川东中二叠统茅口组一段为中缓坡—深缓坡沉积,近期在该套非常规致密灰岩储层内取得了勘探突破,展示出良好的勘探前景。通过岩心观察、薄片鉴定、扫描电镜、氩离子抛光和核磁共振等,对川东地区茅口组一段的微孔特征及其主控因素进行研... 详细信息

川东中二叠统茅口组一段为中缓坡—深缓坡沉积,近期在该套非常规致密灰岩储层内取得了勘探突破,展示出良好的勘探前景。通过岩心观察、薄片鉴定、扫描电镜、氩离子抛光和核磁共振等,对川东地区茅口组一段的微孔特征及其主控因素进行研究。研究结果表明1)川东地区茅一段的岩石类型有泥晶生屑灰岩、泥质泥晶生屑灰岩、含泥泥晶生屑灰岩以及含生屑泥晶灰岩等,平均孔隙度为1.57%,平均渗透率为0.113 mD,为低孔低渗储层;2)储集空间类型以粒间孔、滑石收缩孔(缝)、有机孔及裂缝为主;3)孔隙形态呈三角形状、长条状,孔径为1.5~1.8μm,平均孔径1.725μm,平均孔隙面积为2.764μm2,孔隙数量关系为生屑泥晶灰岩>泥晶生屑灰岩>泥晶灰岩;4)孔隙体积与石英含量、黏土矿物含量以及TOC呈正相关。研究认为,有机碳丰度、石英丰度和滑石丰度共同控制了川东地区茅口组一段储层微孔的发育。

关键词：川东地区茅一段致密灰岩孔隙特征纳米孔喉

Magnetoresistance anomaly in Fe_(5)GeTe_(2)homo-junctions induced by its intrinsic transition

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Nano Research 2023年第7期16卷 10443-10450页

作者： Ruijie Zhao Yanfei Wu Shaohua Yan Xinjie Liu He huang Yang Gao Mengyuan Zhu Jianxin Shen shipeng Shen Weifeng Xu Zeyu Zhang Liyuan Zhang Jingyan Zhang Xinqi Zheng Hechang Lei Ying Zhang Shouguo Wang School of Materials Science and Engineering Beijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing 100083China Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China School of Materials Science and Engineering Anhui UniversityHefei 230601China Institute of Advanced Materials Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China

Two-dimensional van der Waals(2D vdW)magnets have attracted great attention recently and possess the unprecedented advantages of incorporating high-quality vdW heterostructures and homostructures into spintronic devices,and exploring various physical phenomena or *** them,Fe_(5)GeTe_(2)(F5GT)has ferromagnetic order close to room temperature,however the magnetic properties near its intrinsic transitions and F5GT-based 2D devices remain mostly ***,we systematically demonstrate the peculiar magnetic properties of Fe_(5)GeTe_(2)nanoflakes near its intrinsic transition temperature(Tp)which is far lower than its Curie temperature(TC)of~265 K,and firstly discover anomalous magnetoresistance effect in F5GT homo-junctions by magneto-transport *** strongest anomalous Hall effect occurs around Tp which is located in a temperature range from 130 to 160 K for the F5GT nanoflakes with different ***,negative magnetoresistance(N-MR)and butterfly-shaped magnetoresistance(B-MR)are observed in F5GT homo-junction devices,and they appeared only in an intermediate temperature range from 110 to 160 K,noticeably showing the maxima near the T_(p)rather than the lowest *** experimental results clearly reveal the significant influence of intrinsic transitions on magnetic properties of F5GT and magnetoresistance effect in F5GT homo-junction devices,which imply a new strategy to achieve highperformance 2D spintronic devices by tuning intrinsic magnetic or structural transitions in 2D vdW magnets.

关键词： Two-dimensional(2D)van der Waals magnets Fe_(5)GeTe_(2) homo-junction magnetoresistance

Screening of SSR Core Primers and Construction of Molecular ID for Flue-cured Tobacco Germplasm Resources in Hunan

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Agricultural Biotechnology 2022年第4期11卷 1-6,45页

作者： Hui LI Yinghong TANG shipeng XIANG Guang HUO Chutian huang College of Life and Environment Science/Hunan University of Arts and Science Changde 415000China Changsha Filiale of Hunan Tobacco Corpation Changsha 410007China Enshi Prefecture Company of Hubei Tobacco Company Enshi 445000China

[Objectives]This study was conducted to establish a reliable and unique molecular ID for flue-cured tobacco germplasm resources in Hunan Province,further improving the efficiency of germplasm collection and identification,and laying a solid material foundation for flue-cured tobacco breeding.[Methods]Twelve pairs of SSR primers with stable amplification and rich polymorphism were screened out from 816 pairs of SSR primers by a step-by-step screening *** core primers of the SSR core primer library,the polymorphism of SSR primers was analyzed,the genetic relationship of 162 flue-cured tobacco germplasm resources was identified,and the molecular ID cards were constructed.[Results]The result of SSR primer polymorphism analysis showed that a total of 57 alleles were detected by 12 pairs of SSR primers in 165 tobacco germplasm resources,with an average of 4.75 alleles per pair of primers;the average diversity of SSR primers was 0.649;and the average value of Shannon's index was *** results of cluster analysis showed that 162 flue-cured tobacco germplasm resources were divided into five *** members of each group were divided based on genome information,which had nothing to do with their geographical ***,12 pairs of SSR primers gave each flue-cured tobacco germplasm resource a unique molecular ID code.[Conclusions]From the above results,we can see that the 12 pairs of SSR primers obtained by screening have stable amplification polymorphism,and can serve as the primers of the core primer library,and can be used to construct the unique molecular ID of flue-cured tobacco germplasm resources.

关键词： Tobacco SSR primer Molecular ID

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植物补光用LED荧光粉研究进展

照明工程学报 2024年第2期35卷 39-53页

作者：王大伟黄景鑫李杨石明明邹军杨波波王媛媛罗世鹏刘文斌陈启上海应用技术大学材料科学与工程学院上海201418 上海应用技术大学理学院上海201418 西双版纳承启科技有限公司云南西双版纳666100

植物的生长需要适宜的光照环境,然而在自然条件下,植物生长面临阳光、温度、水分等诸多不可控问题。为解决传统农业种植中气温光照不稳定的问题,人们开始发展工厂种植,其中植物的工厂种植核心就是人工光源。近年来植物补光技术被越来越... 详细信息

植物的生长需要适宜的光照环境,然而在自然条件下,植物生长面临阳光、温度、水分等诸多不可控问题。为解决传统农业种植中气温光照不稳定的问题,人们开始发展工厂种植,其中植物的工厂种植核心就是人工光源。近年来植物补光技术被越来越广泛地应用,光照对植物生长的影响及人工补光技术的研究也越来越多。本文介绍了LED植物灯的发展历程、现代LED光源作为植物工厂人工光源的优势、LED植物补光灯发光原理、及部分文中所涉及的光学参数;并总结了Eu^(2+)、Eu^(3+)、Mn^(4+)、Cr^(3+)、多离子共掺杂等荧光粉在植物补光技术中的研究现状。最后对以上不同荧光粉在植物补光技术中的优缺点进行了分析,对LED荧光粉在植物补光领域的发展前景进行了展望,为相关科研人员或机构提供了一些有技术价值的参考。

关键词：荧光粉离子掺杂人工光源植物补光

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新型机载质量流量计结构特性

西南交通大学学报 2009年第5期44卷 753-758页

作者：黄丹平廖俊必廖世鹏四川大学测量与控制工程系四川成都610065 中国科学院成都分院计算机应用研究所四川成都610041

运用CFD(computational fluid dynamics)数值仿真软件模拟机载质量流量计的主动轮和质量感应轮内部燃油流场速度矢量,计算主动轮和质量感应轮上所产生的转动力矩和压力差,得出增大转动力矩和减小压力差的方法,在此基础上改进了机载质量... 详细信息

运用CFD(computational fluid dynamics)数值仿真软件模拟机载质量流量计的主动轮和质量感应轮内部燃油流场速度矢量,计算主动轮和质量感应轮上所产生的转动力矩和压力差,得出增大转动力矩和减小压力差的方法,在此基础上改进了机载质量流量计的主动轮结构.通过仿真计算和样机试验结果可知,与原结构相比改进后的新型机载质量流量计结构使压力差减少了16.0 kPa,满足在机载环境下的压力差、旋转力矩和灵敏度参数的要求.

关键词：质量流量计主动轮质量感应轮 CFD 压力差

犹太人问题何以成为“当代的普遍问题”——马克思《论犹太人问题》解读

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现代哲学 2008年第1期 13-20页

作者：黄学胜邹诗鹏复旦大学哲学学院上海200433

本文通过解读马克思对鲍威尔有关犹太人问题的批判,探讨马克思思考犹太人问题的两个维度,即对政治解放本身的批判和对市民社会的批判,并通过剖析马克思与鲍威尔以及整个青年黑格尔派的区别,进而清理马克思对传统思辨哲学、自由主义政治... 详细信息

本文通过解读马克思对鲍威尔有关犹太人问题的批判,探讨马克思思考犹太人问题的两个维度,即对政治解放本身的批判和对市民社会的批判,并通过剖析马克思与鲍威尔以及整个青年黑格尔派的区别,进而清理马克思对传统思辨哲学、自由主义政治哲学以及启蒙哲学的内在批判关系。

关键词：犹太人问题政治解放市民社会人的解放