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Electroactive shape-memory polymer nanocomposites incorporating carbon nanofiber paper

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International Journal of Smart and Nano Materials 2010年第1期1卷 2-12页

作者： Haibao lu Yanju Liu jihua Gou Jinsong Leng Shanyi Du Center for Composite Materials and Structures Harbin Institute of TechnologyHarbin 150001China Department of Aerospace Science and Mechanics No.92 West Dazhi StreetHarbin Institute of Technology(HIT)HarbinChina Department of Mechanical Materials&Aerospace EngineeringUniversity of Central FloridaOrlandoFL 32816USA

A conductive carbon nanofiber(CNF)paper is described for the actuation of shape recovery of a shape-memory polymer(SMP)by electrically resistive Joule *** CNF paper was manufactured using a traditional physical vapor deposition process and the microscale morphology and structure of the CNF paper were observed using a scanning electron *** CNF paper was found to be porous,with the pore size determined by the weight concentration of *** excellent electrical properties of pure CNF papers and their SMP composites were characterized by the four-point probe *** recovery actuation of this type of SMP composite induced by electrically resistive heating was achieved with a 12 V ***,the thermomechanical properties of the SMP composite were studied with respect to the volume fraction of CNF paper.

关键词： shape-memory polymer resistive heating electroactive carbon nanofiber

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稀土在耐热钢中的应用研究

中国稀土学报 1986年第2期 87-88页

作者：胥继华鲁国荣何淑萍韩桂春陈全昌北京钢铁研究总院重庆特殊钢厂

稀土能明显地改善电热合金的抗氧化性和延长使用寿命,并为世界各国普遍采用。稀土对耐热钢性能影响的研究,尤其是对抗氧化性能影响的研究虽也不少,但实际应用于工业生产并列入各国标准的含稀土耐热钢号并不普遍。本文研究了稀土对铬钢... 详细信息

稀土能明显地改善电热合金的抗氧化性和延长使用寿命,并为世界各国普遍采用。稀土对耐热钢性能影响的研究,尤其是对抗氧化性能影响的研究虽也不少,但实际应用于工业生产并列入各国标准的含稀土耐热钢号并不普遍。本文研究了稀土对铬钢、铬镍钢及铬镍氮钢等不同类型耐热钢的抗氧化性、高温强度及热塑性等的影响。试验用钢是在高频炉或中频炉

关键词：稀土 Cr Ni 耐热钢 RE

Simulation and Structural Design of AMT Switch Valve’s Coil

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Simulation and Structural Design of AMT Switch Valve’s Coil

Engineering Coordination Environment of Cobalt Center in Molecular Catalysts for Improved Photocatalytic CO_(2) Reduction

2014中国汽车工程学会年会

作者： lu Lingya Wang jihua Fan Rong Ju Yusheng Zhang Yongming Wuxi Fuel Injection Equipment Research Institute

The effects of the position relationship between work air gap and coil,the coil wire diameter and the coil turns on the electromagnetic characteristics are analyzed by using the software Ansoft *** coil parameters are... 详细信息

ISBN: (纸本)9783662450420

关键词： coil of AMT switch valve Maxwell structural design

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Chinese Journal of Chemistry 2023年第23期41卷 3305-3310页

作者： Yuchen Wang Jihong Zhang Wei Yang Weixue Tao Keying Tao jihua Deng Wenjie Shi Dichang Zhong Tongbu lu MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials & Low Carbon Technologies School of Material Science & EngineeringTianjin University of TechnologyTianjin300384 China Guangdong Provincial Key Laboratory of Fuel Cell Technology GuangzhouGuangdong510641 China

The creation of effective and inexpensive catalysts is essential for photocatalytic CO_(2) *** molecular catalysts,possessing definite crystal structures,are desirable to study the relationship between catalytic performance and coordination microenvironment around catalytic *** this report,we elaborately developed three Co(II)-based molecular catalysts with different coordination microenvironments for CO_(2) reduction,named[CoN_(3)O]ClO_(4),[CoN_(4)]ClO_(4),and[CoN_(3)S]ClO_(4),*** optimal[CoN_(3)O]ClO_(4) photocatalyst has a maximum TON of 5652 in photocatalytic reduced CO_(2) reduction,which is 1.28 and 1.65 times greater than that of[CoN_(4)]ClO_(4) and[CoN_(3)S]ClO_(4),*** high electronegativity of oxygen in L1(N,N-bis(2-pyridylmethyl)-N-(2-hydroxybenzyl)amine)provides the Co(II)catalytic centers with low reduction potentials and a more stable*COOH intermediate,which facilitates the CO_(2)-to-CO conversion and accounts for the high photocatalytic activity of[CoN_(3)O]ClO_(4).This work provides researchers new insights in development of catalysts for photocatalytic CO_(2) reduction.

关键词： Co(II)-based homogeneous catalysts Coordination microenvironment Photocatalysis CO_(2)reduction Homogenous catalysis

Fibroscan联合血清肝纤维化标志物诊断早期肝硬化的研究

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胃肠病学和肝病学杂志 2015年第4期24卷 447-451页

作者：赵红吕蓓黄绍萍樊贞瑜陆基华唐荣殷科珊张建良程计林温州医科大学附属第一医院消化科浙江温州325000 上海市(复旦大学附属)公共卫生临床中心消化科复旦大学附属中山医院肝癌研究所

目的探索Fibroscan联合血清学肝纤维化标志物检测诊断早期肝硬化的可行性。方法 34例临床诊断为慢性乙型病毒性肝炎(CHB)患者,同时进行Fibroscan、血清肝纤维化标志物、腹部B超检查和肝穿刺活检,并抽样进行胃镜检查,将非创伤性检查的结... 详细信息

目的探索Fibroscan联合血清学肝纤维化标志物检测诊断早期肝硬化的可行性。方法 34例临床诊断为慢性乙型病毒性肝炎(CHB)患者,同时进行Fibroscan、血清肝纤维化标志物、腹部B超检查和肝穿刺活检,并抽样进行胃镜检查,将非创伤性检查的结果与组织病理诊断比较。应用SPSS V17.0统计学软件,将组织病理学诊断为S2、S3、S4期患者的Fibroscan与血清学肝纤维化标志物的检测值分别进行LSD-t检验;计算肝脏弹性值(FS值)、腹部B超检查结果及Fibroscan联合血清学肝纤维化标志物检测值分别与病理诊断的吻合率。结果病理诊断为S2、S3、S4期的患者,其各期的Fibroscan FS值(9.45±4.36、15.27±4.15、23.50±7.69)、血清学肝纤维化标志物HA值(96.49±49.93、180.76±67.40、396.08±97.30)两两相比,差异有统计学意义(P0.05),S3、S4和S2、S4之间相比,差异有统计学意义(P<0.01);Fibroscan与病理诊断S0-1、S2、S3、S4期的吻合率分别为:33.33%、81.82%、37.50%、67.67%;腹部B超诊断基本正常、慢性肝炎和肝硬化的吻合率分别为:16.67%、67.7%和16.67%;Fibroscan联合肝纤维化标志物诊断与病理诊断的吻合率分别为:57.14%、91.67%、57.14%、87.50%。胃镜检查有食管静脉曲张患者的病理诊断均显示S4期,胃镜检查诊断慢性浅表性胃炎者,其病理诊断均为S2期。结论 Fibroscan与血清学肝纤维化标志物(尤其是HA)联合检测有利于提高肝纤维化的早期诊断率。若结合腹部B超和胃镜检查更有利于临床诊疗和预后判断。

关键词：肝纤维化 Fibroscan 超声检查血清肝纤维化指标肝穿刺活检

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Enhancing bioactivity and stability of polymer-based materialtissue interface through coupling multiscale interfacial interactions with atomic-thin TiO2 nanosheets

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Nano Research 2023年第4期16卷 5247-5255页

作者： Rongchen Xu Xiaodan Mu Zunhan Hu Chongzhi Jia Zhenyu Yang Zhongliang Yang Yiping Fan Xiaoyu Wang Yuefeng Wu Xiaotong lu jihua Chen Guolei Xiang Hongbo Li Department of Stomatology The First Medical CenterChinese PLA General HospitalBeijing 100853China Department of Stomatology The Third Medical CenterChinese PLA General HospitalBeijing 100039China Department of Stomatology Kunming Medical UniversityKunming 650500China National Clinical Research Center for Oral Diseases&Shaanxi Key Laboratory of Stomatology Department of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi’an 710032China Department of Stomatology The Strategic Support Force Medical CenterBeijing 100101China State Key Laboratory of Chemical Resource Engineering College of ChemistryBeijing University of Chemical TechnologyBeijing 100029China

Stable and bioactive material-tissue interface(MTF)basically determines the clinical applications of biomaterials in wound healing,sustained drug release,and tissue *** many inorganic nanomaterials have been widely explored to enhance the stability and bioactivity of polymer-based biomaterials,most are still restricted by their stability and *** we demonstrate the enhanced bioactivity and stability of polymer-matrix bio-composite through coupling multiscale material-tissue interfacial interactions with atomically thin TiO_(2)*** modified with TiO_(2)nanosheets displays improved mechanical properties,hydrophilicity,and ***,we confirm that this resin can effectively stimulate the adhesion,proliferation,and differentiation into osteogenic and odontogenic lineages of human dental pulp stem cells using in vitro cell-resin interface ***_(2)nanosheets can also enhance the interaction between demineralized dentinal collagen and *** results suggest an approach to effectively up-regulate the stability and bioactivity of MTFs by designing biocompatible materials at the sub-nanoscale.

关键词： material-tissue interface TiO_(2)nanosheets pulpo-dentinal complex biomaterial resin composite

The diversity and ecological significance of microbial traits potentially involved in B_(12) biosynthesis in the global ocean

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mLife 2023年第4期2卷 416-427页

作者： Jiayin Zhou Wei Qin Xinda lu Yunfeng Yang David Stahl Nianzhi Jiao Jizhong Zhou jihua Liu Qichao Tu Institute of Marine Science and Technology Shandong UniversityQingdaoChina Joint Lab for Ocean Research and Education at Dalhousie University Shandong University and Xiamen UniversityQingdaoChina School of Biological Sciences University of OklahomaNormanOklahomaUSA Department of Civil and Environmental Engineering Massachusetts Institute of TechnologyCambridgeMassachusettsUSA State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijingChina Department of Civil and Environmental Engineering University of WashingtonSeattleWashingtonUSA Institute of Marine Microbes and Ecospheres Xiamen UniversityXiamenChina Earth and Environmental Sciences Lawrence Berkeley NationalLaboratoryBerkeley CaliforniaUSA Institutefr Environmental Genomics University of OklahomaNormanOklahomaUSA School of Civil Engineering and Environmental Sciences University of OklahomaNormanOklahomaUSA School of Computer Sciences University of OklahomaNormanOklahomaUSA DermBiont Inc. BostonMassachusettsUSA

Cobalamin(B_(12)),an essential nutrient and growth cofactor for many living organisms on Earth,can be fully synthesized only by selected prokaryotes in ***,microbial communities related to B_(12) biosynthesis could serve as an example subsystem to disentangle the underlying ecological mechanisms balancing the function and taxonomic make-up of complex functional *** anchoring microbial traits potentially involved in B_(12) biosynthesis,we depict the biogeographic patterns of B_(12) biosynthesis genes and the taxa harboring them in the global ocean,despite the limitations of detecting de novo B_(12) synthesizers via metagenomes *** the taxonomic and functional composition of B_(12) biosynthesis genes were strongly shaped by depth,differentiating the epipelagic zones from the mesopelagic *** genes related to B_(12) biosynthesis were relatively stably distributed across different oceans,but the taxa harboring them varied considerably,showing clear functional redundancy among microbial *** taxa carrying B_(12) biosynthesis genes in the surface water were influenced by environmental factors such as temperature,oxygen,and ***,the composition of functional genes was only weakly associated with these environmental *** model analyses demonstrated that determinism governed the variations in B_(12) biosynthesis genes,whereas a higher degree of stochasticity was associated with taxonomic *** associations were observed between the chlorophyll a concentration and B_(12) biosynthesis,confirming its importance in primary production in the global *** results of this study reveal an essential ecological mechanism governing the assembly of microbes in nature:the environment selects for function rather than taxonomy;functional redundancy underlies stochastic community assembly.

关键词： B_(12)biosynthesis community assembly functional genes functional redundancy ocean primary production

AIDS与肝病患者胃镜活检组织幽门螺杆菌感染和消化性溃疡发现率的临床比较研究

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胃肠病学和肝病学杂志 2011年第9期20卷 847-849页

作者：程计林黄绍萍须亚红陆基华殷科珊唐荣徐烈马学东苏峥樊贞瑜张仁芳卢洪洲陈良冯艳玲上海市复旦大学附属公共卫生临床中心消化科上海201508 上海市复旦大学附属公共卫生临床中心感染科上海201508 上海市复旦大学附属公共卫生临床中心肝炎科上海201508 上海市复旦大学附属公共卫生临床中心病理科上海201508

目的探讨艾滋病、肝病和普通人群上中腹不适的患者胃幽门螺旋杆菌(***)感染发生率的异同,以发现***感染在诱发艾滋病患者和肝病患者消化性溃疡过程中作用的异同。方法艾滋病组患者46例,肝病组患者668例,非艾滋病非肝病普通人群对照组226... 详细信息

目的探讨艾滋病、肝病和普通人群上中腹不适的患者胃幽门螺旋杆菌(***)感染发生率的异同,以发现***感染在诱发艾滋病患者和肝病患者消化性溃疡过程中作用的异同。方法艾滋病组患者46例,肝病组患者668例,非艾滋病非肝病普通人群对照组226例,均有上腹不适,行胃镜检查,活检组织分别进行快速尿素酶和Warthin-Starry银染检测***感染,同时记录内镜下发现的病变。结果肝病患者***感染率(36.08%)低于艾滋病患者(43.48%)和普通人群对照组(59.73%)(P0.05)。结论 ***肝病患者消化性溃疡的发生与***感染的关系,不像普通人群消化性溃疡的发生与***感染的关系密切;而艾滋病患者中***感染率即使低于普通人群,***感染仍是促进艾滋病患者发生消化性溃疡的重要因素。

关键词：艾滋病肝病幽门螺杆菌消化性溃疡

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Epidemic Regularity and Control Effect of Huanglongbing (HLB) in Different Management Approaches

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Plant Diseases and Pests 2016年第2期7卷 7-10,14页

作者： Yu jihua Wang Enguo lu lu Zhang Minrong Tao Jian Plant Quarantine Station of Huangyan District Huangyan 318020 China Plant Protection Station of Linhai City Linhai 317000 China

In order to reveal the epidemic regularity of Huanglongbing （HLB） in different management approaches, different citrus production areas were selected between 2002 and 2012 to compare epidemic regularity of different types and control effects of different management approaches with plant incidence rate. All survey data in 11 years were used to build a mathematical model, and epidemic evolution and control effects were quantitatively analyzed. The results indicated that diffusion and prevalence of HLB generally increased linearly. In naturally growing citrus orchards without artificial control, the annual diseased plant rate was 11.11%, and the epidemic diffusion model was y1 = 12. 24x - 1.382 8 （ n =9, r =0. 976 9 ＊＊）. Under general prevention and control conditions, the annual diseased plant rate was 4.69%, the epidemic diffusion model was Y2 = 5. 449 8x - 1.603 5 （ n = 11, r =0. 974 9 ＊＊）, and the control effect was 43.93% （22.93% - 55.04% ）. In citrus orchards with integrated prevention and control, the epidemic diffusion model was Y3 = 0. 366 3x - 0. 342 2 （ n = 11, r = 0. 989 8 ＊＊）, the control effect was 96.15% （94.95% -97.40% ）, and the annual diseased plant rate was 0.31%. Thus, HLB is preventable and controllable as long as integrated prevention and control work is implemented well.

关键词： Huanglongbing (HLB) Management approach Epidemic regularity Diffusion model Control effect