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Preparation of three-dimensional nanoporous copper foil with high specific surface area

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Rare Metals 2024年第7期43卷 3430-3437页

作者： Ning Song Li-Juan Wang jun-Feng Wang Juan liao Jian Huang Peng-Kang Du Yun-Zhi Tang Yu-Hui Tan Xiao-Wei Fan Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry School of Chemistry and Chemical EngineeringJiangxi University of Science and TechnologyGanzhou 341000China

The porous copper foil material has the advantages of ultralight and ultra-thin,and can prevent dangers such as thermal runaway and battery fire,which could be regarded as a prospective material for lithium battery **... 详细信息

关键词： copper porous dimensional

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柠檬酸钠对有机溶胶法制备钴纳米粒子的影响

华南理工大学学报（自然科学版） 2008年第3期36卷 50-54页

作者：李浩宋慧宇廖世军华南理工大学化学科学学院广东广州510640

以甲酸钠为还原剂、乙二醇为溶剂、柠檬酸钠为络合剂,采用有机溶胶法制得了粒径为2 nm的单分散钴纳米粒子.考查了柠檬酸钠的添加对钴纳米粒子的收率、晶型、粒径及其分布的影响.结果表明:当柠檬酸钠/氯化钴摩尔比从0增至6时,钴纳米粒子... 详细信息

以甲酸钠为还原剂、乙二醇为溶剂、柠檬酸钠为络合剂,采用有机溶胶法制得了粒径为2 nm的单分散钴纳米粒子.考查了柠檬酸钠的添加对钴纳米粒子的收率、晶型、粒径及其分布的影响.结果表明:当柠檬酸钠/氯化钴摩尔比从0增至6时,钴纳米粒子的平均粒径从200 nm降至2 nm;同时,柠檬酸钠对钴纳米粒子的粒径分布也有很好的控制作用,不加柠檬酸钠时所得钴纳米粒子粒径分布很广,从几十纳米到三四百纳米,而添加一定量柠檬酸钠后,所得钴纳米粒子粒径在(2±0.25)nm范围内.实验还发现使用柠檬酸钠作为络合剂会降低纳米粒子的收率.

关键词：柠檬酸钠钴有机溶胶法纳米材料络舍

Structural and biomechanical characterizations of acellular porcine mitral valve scaffolds:anterior leaflets,posterior leaflets,and chordae tendineae

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Engineered Regeneration

Engineered Regeneration 2022年第4期3卷 374-386页

作者： Bo Wang Leslie N.Sierad Jeremy J.Mercuri Agneta Simionescu Dan T.Simionescu Lakiesha N.Williams Ryan Vela Pietro Bajona Matthias Peltz Sharan Ramaswamy Yi Hong jun liao Department of Bioengineering University of Texas at ArlingtonArlingtonTX 76010United States Joint Department of Biomedical Engineering Medical College of Wisconsin and Marquette UniversityMilwaukeeWI 53226United States Department of Bioengineering Clemson UniversityClemsonSC 29634United States Department of Biomedical Engineering Florida International UniversityMiamiFL 33174United States Department of Biomedical Engineering University of FloridaGainesvilleFL 32611United States Department of Cardiovascular and Thoracic Surgery University of Texas Southwestern Medical CenterDallasTX 75390United States Allegheny Health Network-Drexel University College of Medicine PittsburghPA 15212United States

Mitral valve(MV)tissue engineering is still in its early stage,and one major challenge in MV tissue engineering is to identify appropriate scaffold *** the potential of acellular MV scaffolds being demonstrated recently,it is important to have a full understanding of the biomechanics of the native MV components and their acellular *** this study,we have successfully characterized the structural and mechanical properties of porcine MV components,including anterior leaflet(AL),posterior leaflet(PL),strut chordae,and basal chordae,before and after *** DNA assay showed more than 90%reduction in DNA content,and Griffonia simplicifolia(GS)lectin immunohistochemistry confirmed the complete lack of porcine𝛼-Gal antigen in the acellular MV *** the acellular AL and PL,the atrialis,spongiosa,and fibrosa trilayered structure,along with its ECM constitutes,i.e.,collagen fibers,elastin fibers,and portion of GAGs,were ***-theless,the ECM of both AL and PL experienced a certain degree of disruption,exhibiting a less dense,porous ECM *** overall anatomical morphology of the strut and basal chordae were also maintained af-ter decellularization,with longitudinal morphology experiencing minimum disruption,but the cross-sectional morphology exhibiting evenly-distributed porous *** the acellular AL and PL,the nonlinear anisotropic biaxial mechanical behavior was overall preserved;however,uniaxial tensile tests showed that the removal of cellular content and the disruption of structural ECM did result in small decreases in maximum tensile modulus,tissue extensibility,failure stress,and failure strain for both MV leaflets and chordae.

关键词： Mitral valve tissue engineering Heart valve biomechanics Valve leaflets Chordae tendineae Decellularization

冰雪天气机电设施韧性及御灾能力评估指标体系构建

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公路交通科技 2023年第S02期40卷 90-94,108页

作者：汤筠筠廖军洪陈瑜交通运输部公路科学研究院北京100088

道路交通机电设施是道路交通系统不可分割的组成部分。随着近年自然灾害频发,对道路沿线机电设施韧性提出了迫切要求。对冰雪天气条件下在役沿线机电设施韧性及御灾能力的内涵进行了概述,梳理了国内外韧性理论的发展,明确了在役沿线机... 详细信息

道路交通机电设施是道路交通系统不可分割的组成部分。随着近年自然灾害频发,对道路沿线机电设施韧性提出了迫切要求。对冰雪天气条件下在役沿线机电设施韧性及御灾能力的内涵进行了概述,梳理了国内外韧性理论的发展,明确了在役沿线机电设施的检测对象和范围。通过其表现出来的吸收能力、抵抗能力、恢复能力和适应能力,综合考虑在役沿线机电设施的鲁棒性、冗余性、资源性、时效性等特征,提出在役各项机电设施评估表征参数,明确评估指标名称、特征,以及指标项的检测方法,并聚焦监控、照明、供配电等受气象灾害影响最严重的3类外场机电设施,涵盖在役沿线机电设施系统的交通监视、交通信息发布及控制、照明等功能性指标,最终构建了冰雪天气机电设施韧性及御灾能力评估指标体系。

关键词：道路工程评估指标体系机电设施韧性御灾能力冰雪

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基于多项式同构的代理重签名方案

通信学报 2017年第2期38卷 16-24页

作者：李慧贤邵璐庞辽军西北工业大学计算机学院陕西西安710072 西安电子科技大学综合业务网国家重点实验室陕西西安710071

由于目前的代理重签名方案几乎都是基于大数分解、离散对数和椭圆曲线等问题设计的,无法抵抗量子攻击,提出了一个新的代理重签名方案。该方案通过借助多项式同构和秘密仿射变换技术,能够高效地完成代理重签名功能并且可以抵抗量子攻击... 详细信息

由于目前的代理重签名方案几乎都是基于大数分解、离散对数和椭圆曲线等问题设计的,无法抵抗量子攻击,提出了一个新的代理重签名方案。该方案通过借助多项式同构和秘密仿射变换技术,能够高效地完成代理重签名功能并且可以抵抗量子攻击。通过分析表明,该方案不但满足正确性与一致性,并且在随机预言机模型下具有不可伪造性。与现有的代理重签名方案相比,该方案不仅继承了多变量公钥密码体制的高效性与抗量子攻击性,还具有复用性、透明性和秘密代理性等特点。

关键词：代理重签名多变量公钥密码体制多项式同构仿射变换

Suggestions of management on emergency responses to epidemic outbreaks in outpatient or emergency departments of tertiary teaching hospitals

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Journal of Intensive Medicine 2022年第3期2卷 146-149页

作者： Ming Wu Zhiye Fang Li Zeng Xiaohua Xie jun liao Lei Yang Wenping Zheng Lijie Ren Biqiang Zhou Jianyi Xiong Yong Xu Guohui Nie Department of Critical Care Medicine Hospital Infection Prevention and ControlShenzhen Second People’s HospitalFirst Affiliated Hospital of Shenzhen UniversityShenzhenGuangdong 518035China Expert Panel of Management in Epidemic Outbreak Shenzhen Second People’s Hospital and First Affiliated Hospital of Shenzhen UniversityShenzhenGuangdong 518035China

Background Patients infected with the alpha,beta,and delta strains of coronavirus disease 2019(COVID-19)usually exhibit fever,dry cough,nasal congestion,sore throat,loss of taste or smell,runny nose,conjunctivitis,fatigue,myalgia,diarrhea,and other symptoms,[1]while patients infected with the omicron strain present mild symptoms,including nasal discharge,sore throat,sneezing,headache,and cough.[2]Some patients deliberately conceal the relevant medical history,which makes it difficult to find in the pre-examination screening in outpatient or emer-gency *** and emergency buildings are usually linked to each other,and some older floors are poorly *** patients with COVID-19 see a doctor in an out-patient or emergency building,especially patients infected with the omicron strain,an outbreak of the epidemic in a large area is easily possible.

关键词： nasal epidemic diarrhea

An Explicit,Totally Analytic Solution of Laminar Viscous Flow over a Semi-Infinite Flat Plate

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Communications in Nonlinear Science and Numerical Simulation 1998年第2期 1-5页

作者： Shi jun liao (College of Naval Architecture & Ocean Engineering Shanghai Jiao Tong University,Shanghai 200030, China) E mail : sjliao@***

ＩｎｔｒｏｄｕｃｔｉｏｎＩｔｉｓｗｅｌｋｎｏｗｎｔｈａｔｐｅｒｔｕｒｂａｔｉｏｎｔｅｃｈｎｉｑｕｅｓａｒｅｔｏｏｓｔｒｏｎｇｌｙｄｅｐｅｎｄｅｎｔｕｐｏｎｔｈｅｓｏｃａｌｅｄ‘‘ｓｍａｌｐａｒａｍｅｔｅｒｓ”．Ｔ... 详细信息

ＩｎｔｒｏｄｕｃｔｉｏｎＩｔｉｓｗｅｌｋｎｏｗｎｔｈａｔｐｅｒｔｕｒｂａｔｉｏｎｔｅｃｈｎｉｑｕｅｓａｒｅｔｏｏｓｔｒｏｎｇｌｙｄｅｐｅｎｄｅｎｔｕｐｏｎｔｈｅｓｏｃａｌｅｄ‘‘ｓｍａｌｐａｒａｍｅｔｅｒｓ”．Ｔｈｕｓ，ｉｔｉｓｗｏｒｔｈｗｈｉｌ...

关键词： Blasius’ viscous flow explicit analytic solution new analytic technique the Homotopy Analysis Method

H原子在γ-U(100)表面吸附与扩散的密度泛函研究

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原子能科学技术 2012年第8期46卷 907-911页

作者：曹坤廖俊生李赣表面物理与化学重点实验室四川绵阳621907

采用密度泛函理论方法研究了H原子在γ-U(100)表面的吸附和扩散。结果表明:H原子在γ-U(100)表面的最佳吸附位依次为穴位、桥位和顶位,吸附能分别为2.696、2.597和2.017eV;H原子在γ-U中的最佳间隙位为四面体间隙,其次是八面体间隙,吸... 详细信息

采用密度泛函理论方法研究了H原子在γ-U(100)表面的吸附和扩散。结果表明:H原子在γ-U(100)表面的最佳吸附位依次为穴位、桥位和顶位,吸附能分别为2.696、2.597和2.017eV;H原子在γ-U中的最佳间隙位为四面体间隙,其次是八面体间隙,吸附能分别为1.534eV和0.991eV;H原子在铀表面以及近表面层的不同吸附位之间的扩散需克服不同的势垒,相比于间隙位,H原子更倾向于在γ-U(100)表面吸附聚集。

关键词：密度泛函理论 H原子 γ-U(100)表面吸附势垒

基于无机固体酸的燃料电池用质子交换膜的研究进展

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现代化工 2009年第3期29卷 18-21页

作者：朴金花廖世军华南理工大学化学与化工学院广东广州510640

概述了基于无机固体酸的燃料电池用质子交换膜的发展背景以及研究现状,较详细地介绍了这类电解质膜的导电机理及其在机理方面的研究,展望了其发展前景,也提出了固体酸电解质膜应用中必须解决的问题。

关键词：燃料电池固体酸质子交换膜电解质质子电导率