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Structural Performance of Smart CFRP-FBG Reinforced Steel Beams

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Journal of Architectural Environment & Structural Engineering Research 2020年第4期3卷 9-15页

作者： Huaping Wang Tao Song Hengyang Li Siyuan Feng School of Civil Engineering and Mechanics Lanzhou UniversityLanzhouGansu730000China Key lab of Structures Dynamic Behavior and Control(Harbin Institute of Technology) Ministry of EducationHarbinHeilongjiang150090China

Many beam structures suffer from gradual performance degradation with the increase of service *** recover the bearing capacity of these beams,carbon fiber reinforced polymer(CFRP)plates are developed to attached on the beam *** check the structural performance of the CFRP reinforced beams,smart CFRP plate with FBGs in series is designed and LVDTs are adopted to measure the *** deflection of the reinforced beam is given based on the elastic conversion cross-section *** experimental results validate the effectiveness of the proposed *** study shows that the CFRP reinforced zone has a larger flexural rigidity than the pure steel beam *** general distribution of the deflection along the span of the CFRP reinforced beam can be described by the proposed *** provides a scientific design guidance for the deflection control of CFRP reinforced structures.

关键词： CFRP reinforced beam Interfacial interaction Smart CFRP-FBG plate Deflection Experimental investigation

Acellular nerve xenografts based on supercritical extraction technology for repairing long-distance sciatic nerve defects in rats

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Bioactive Materials 2022年第12期7卷 300-320页

作者： Shuai Wei Qian Hu Jianxiong Ma Xiu Dai Yu Sun Gonghai Han Haoye Meng Wenjing Xu Lei Zhang Xinlong Ma Jiang Peng Yu Wang Tianjin Hospital Tianjin UniversityNo.406 Jiefang South RoadHexi DistrictTianjin300211China Institute of Orthopedics The First Medical CenterChinese PLA General HospitalBeijing Key Lab of Regenerative Medicine in OrthopedicsKey Laboratory of Musculoskeletal Trauma and War Injuries PLANo.28 Fuxing RoadHaidian DistrictBeijing 100853China Key laboratory of Neuroregeneration of Jiangsu and Ministry of Education Neural Regeneration Co-Innovation Center of Jiangsu ProvinceNantong UniversityNo.19 Qixiu RoadChongchuan DistrictNantong226001China Department of Geriatrics The Second People’s Hospital of NantongAffiliated Rehabilitation Hospital of Nantong UniversityNo.298 Xinhua RoadChongchuan DistrictNantong226006China Institute of Orthopedics Tianjin Hospital Tianjin UniversityTianjin Key Laboratory of Orthopedic Biomechanics and Medical EngineeringNo.155 Munan RoadHeping DistrictTianjin300050China The First People’s Hospital of Yunnan Province No.157 Jinbi RoadXishan DistrictKunming650034China Academy of Medical Engineering and Translational Medicine Tianjin UniversityNo.92 Weijin RoadNankai DistrictTianjin300072China

Compared to conventional artificial nerve guide conduits (NGCs) prepared using natural polymers or synthetic polymers, acellular nerve grafts (ACNGs) derived from natural nerves with eliminated immune components have natural bionic advantages in composition and structure that polymer materials do not have. To further optimize the repair effect of ACNGs, in this study, we used a composite technology based on supercritical carbon dioxide (scCO_(2)) extraction to process the peripheral nerve of a large mammal, the Yorkshire pig, and obtained an innovative Acellular nerve xenografts (ANXs, namely, CD + scCO_(2) NG). After scCO_(2) extraction, the fat and DNA content in CD + scCO_(2) NG has been removed to the greatest extent, which can better supported cell adhesion and proliferation, inducing an extremely weak inflammatory response. Interestingly, the protein in the CD + scCO_(2) NG was primarily involved in signaling pathways related to axon guidance. Moreover, compared with the pure chemical decellularized nerve graft (CD NG), the DRG axons grew naturally on the CD + scCO_(2) NG membrane and extended long distances. In vivo studies further revealed that the regenerated nerve axons had basically crossed the CD + scCO_(2) NG 3 weeks after surgery. 12 weeks after surgery, CD + scCO_(2) NG was similar to autologous nerves in improving the quality of nerve regeneration, target muscle morphology and motor function recovery and was significantly better than hollow NGCs and CD NG. Therefore, we believe that the fully decellularized and fat-free porcine ACNGs may be the most promising “bridge” for repairing human nerve defects at this stage and for some time to come.

关键词： Peripheral nerve regeneration Acellular nerve xenograft Supercritical extraction Peripheral nerve injury Nerve defect

车用高分子材料不同地区户外曝晒试验相关性研究

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装备环境工程 2022年第7期19卷 137-142页

作者：杜砚文刘丹张晓略高佳艺张恒上海关点质量检测技术服务有限公司上海201319 泛亚汽车技术中心有限公司上海201201 东华大学上海201620 美国Q-lab公司上海代表处上海200072

目的将3种高分子材料以及3种车用外饰材料分别投放在中国海南琼海和美国佛罗里达州2种典型湿热环境中进行户外曝晒试验,研究气候相似的2种地区的试验相关性。方法通过测试相同时间间隔下不同材料在2处试验场曝晒过程中的黄变程度,表征... 详细信息

目的将3种高分子材料以及3种车用外饰材料分别投放在中国海南琼海和美国佛罗里达州2种典型湿热环境中进行户外曝晒试验,研究气候相似的2种地区的试验相关性。方法通过测试相同时间间隔下不同材料在2处试验场曝晒过程中的黄变程度,表征材料的老化现象。采用斯皮尔曼等级相关系数的统计方法,研究材料在2个地区相同时间节点的试验结果的相关性,并利用时间同轴的作图方法比较2个地区严酷度的差异。结果琼海与佛罗里达州2个地区在各个时间节点的相关系数接近于1,且在材料黄变方面呈现一定比例关系。结论琼海和佛罗里达州2个地区的试验结果呈现出较好的相关性,且严酷度比值约为琼海︰佛罗里达=1︰1.19。

关键词：汽车材料户外曝晒试验老化黄变程度斯皮尔曼等级相关系数相关性严酷度

太阳跟踪反射聚能户外加速曝晒方法的对比研究

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装备环境工程 2022年第11期19卷 150-155页

作者：刘丹张晓略杜砚文毛敬侨张恒泛亚汽车技术中心有限公司上海201201 上海关点质量检测技术服务有限公司上海201319 东华大学上海201620 美国Q-lab公司上海代表处上海201114

目的找出太阳跟踪反射聚能户外加速曝晒方法的特点和价值。方法基于几种典型的透明高分子材料试样,分别在佛罗里达典型亚热带潮湿环境自然曝晒、汽车外饰实验室氙灯加速耐候试验及亚利桑那太阳跟踪反射聚能户外加速曝晒黄变结果相关性... 详细信息

目的找出太阳跟踪反射聚能户外加速曝晒方法的特点和价值。方法基于几种典型的透明高分子材料试样,分别在佛罗里达典型亚热带潮湿环境自然曝晒、汽车外饰实验室氙灯加速耐候试验及亚利桑那太阳跟踪反射聚能户外加速曝晒黄变结果相关性、加速性和区分度的对比分析,来比较这几种试验方法的特点。结果户外加速曝晒和自然曝晒的相关性高于氙灯加速试验和自然曝晒的相关性。与自然曝晒相比,户外加速曝晒的平均加速倍率及不同试样的加速倍率的相对差异明显小于氙灯加速试验。自然曝晒和户外加速曝晒的区分度也明显大于实验室氙灯加速试验。结论户外加速曝晒方法较好地均衡了相关性、加速性、加速一致性及区分度,适合高分子材料的验证性试验。

关键词：高分子材料氙灯老化太阳跟踪聚能曝晒户外加速曝晒耐候性黄变

Erratum: A Ubiquitous Thermal Conductivity Formula for Liquids, polymer Glass, and Amorphous Solids [Chin. Phys. Lett. 37(2020) 104401]

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Chinese Physics Letters 2021年第3期38卷 132-132页

作者： Qing Xi Jinxin Zhong Jixiong He Xiangfan Xu Tsuneyoshi Nakayama Yuanyuan Wang Jun Liu Jun Zhou Baowen Li Center for Phononics and Thermal Energy Science China-EU Joint Lab for NanophononicsSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China Department of Mechanical and Aerospace Engineering North Carolina State UniversityRaleighNC 27695USA Hokkaido University SapporoHokkaido 060-0826Japan School of Environmental and Materials Engineering Shanghai Polytechnic UniversityShanghai 201209China Paul M Rady Department of Mechanical Engineering Department of PhysicsUniversity of ColoradoBoulderCO 80305-0427USA

In the Acknowledgement, the following sentence "JH and JL are supported by the National Science Foundation (Award number CBET-1943813) and the Faulty Research and Professional Development Fund at North Carolina State University" should be changed to "JH and JL are supported by the Faulty Research and Professional Development Fund at North Carolina State University".

关键词： Conductivity Solid Carolina

Synthesis of cationic styrene-acrylic acid ester copolymer emulsion for paper sizing

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Journal of Bioresources and Bioproducts 2016年第1期1卷 36-41页

作者： Xinlei Wu Youjia Cui Yi Jing Joseph Mosseler Jiangsu Provincial Key lab of Pulp and Paper Science and Technology Nanjing Forestry UniversityNanjing210037China Department of Chemical Engineering&Limerick Pulp and Paper Centre University of New BrunswickFrederictonNew BrunswickCanadaE3B 5A3

Surface sizing is an effective way to increase paper’s water-resistance and *** purpose of this study was to study synthesis process to develop an efficient cationic styrene-acrylic acid ester emulsion(SAE)for the surface sizing of *** methacrylate methyl chloride(DMC)was used as the cationic monomer,and cationic starch or native starch was used as the emulsion stabilizer to copolymerize with styrene and butyl *** results indicated that the SAE synthesized with cationic starch and DMC had a high cationic charge density and a high DMC conversion *** sized with the cationic SAE had higher surface strength and lower Cobb value than the paper sized with other surface sizing agents such as,anionic SAE,and cationic or oxidized *** electron micrographs revealed that the paper sized with a combination of oxidized starch and cationic SAE had smoother surface morphology when compared to the paper sized with oxidized starch alone,or with oxidized starch and anionic SAE.

关键词： Surface sizing agent Synthesis polymer Styrene Butyl acrylate Cationic modification Paper

Novel completed biodegradable polymer sirolimus-eluting stent versus durable polymer sirolimus-eluting stent in de novo lesions： nine-month angiographic and three-year clinical outcomes of HOPE trial

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Chinese Medical Journal 2014年第14期127卷 2561-2566页

作者： Yuan Fei Chen Xin Song Xiantao Wang Dongqi Zhang Zheng Li Weimin Li Zhanquan Li Hui Chen Xinyi Huo Yong Wang Lefeng Lu Caiyi Lu Qinghua Xu Bo Li Wei Lyu Shuzheng Capital Med Univ Dept Cardiol Beijing Anzhen Hosp Beijing 100029 Peoples R China Xi An Jiao Tong Univ Dept Cardiol Affiliated Hosp 1 Xian 710061 Shaanxi Peoples R China Lanzhou Univ Dept Cardiol Affiliated Hosp 1 Lanzhou 730000 Gansu Peoples R China Harbin Med Univ Dept Cardiol Affiliated Hosp 1 Harbin 150001 Heilongjiang Peoples R China Peoples Hosp Liaoning Prov Dept Cardiol Shenyang 110016 Liaoning Peoples R China Gen Hosp Daqing Oilfield Dept Cardiol Daqing 163411 Heilongjiang Peoples R China Peoples Hosp Shaanxi Prov Dept Cardiol Xian 710068 Shaanxi Peoples R China Peking Univ Dept Cardiol Hosp 1 Beijing 100044 Peoples R China Capital Med Univ Dept Cardiol Chaoyang Hosp Being 100020 Peoples R China Chinese Peoples Liberat Army Gen Hosp Dept Cardiol Beijing 100853 Peoples R China Shandong Univ Dept Cardiol Hosp 2 Jinan 250033 Shandong Peoples R China Chinese Acad Med Sci Cardiac Catheterizat Lab Cardiovasc Inst Beijing 100037 Peoples R China Chinese Acad Med Sci Fuwai Hosp Beijing 100037 Peoples R China Peking Union Med Coll Beijing 100037 Peoples R China Natl Ctr Cardiovasc Dis China Beijing 100037 Peoples R China

Background Drug-eluting stents（DES） with durable polymer have significantly reduced restenosis and target vessel revascularization compared with bare metal stents. Durable polymer has been linked with persistent inflammation of vessel wall and delayed endothelial healing that may increase the risk of late and very late stent thrombosis. This study sought to evaluate the efficacy and safety of HELLOS completed biodegradable polymer sirolimus-eluting stent （SES） in de novo coronary *** Totally, 287 patients with one or two de novo coronary lesions （lesion length ≤38 mm and reference vessel diameter 2.5-4.0 mm） were enrolled in the HOPE study, a prospective, multicenter, randomized, non-inferiority trial. Patients were randomized to treatment either with HELIOS completed biodegradable polymer SES （n=142） or PARTNER durable polymer SES （n=145）. The primary endpoint was angiographic in-stent late lumen loss （LLL） at 9-month follow-up. The secondary endpoint included stent thrombosis and major adverse cardiac events including cardiac death, myocardial infarction （MI） and target lesion revascularization （TLR）.Results The 9-month in-stent LLL in the HELIOS group was similar to the PARTNER group, （0.16±0.22） mm vs. （0.19±0.30） mm （P=0.28）. The difference and 95% confidence interval were -0.03 （-0.09, 0.04）, and the P value for non-inferiority 〈0.01. Major adverse cardiovascular event （MACE） occurred in 7.9% vs. 8.2%, MI in 2.4% vs. 3.0%, TLR in 5.5% vs. 3.0%, and stent thrombosis in 0 vs. 1.5%; and events were comparable between the HELIOS group and PARTNER aroup at three-year follow-up （all P 〉0.05）. The three-year cardiac death was lower in the HELIOS group, butwith no significant difference, 0 vs. 3.0% （P=0.12）. Conclusions In the HOPE trial, the novel completed biodegradable polymer SES HELIOS was non-inferior to the durable polymer SES PARTNER with respect to nine-month in-stent LLL in de novo coronary lesions. The incidence of other clinical endpoints was l

关键词： biodegradable polymer titanium oxides films drug-eluting stents

Improving the electroconductivity and mechanical properties of cellulosic paper with multi-walled carbon nanotube/polyaniline nanocomposites

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Journal of Bioresources and Bioproducts 2016年第1期1卷 48-54页

作者： Xiaochuang Shen Yanjun Tang Dingding Zhou Junhua Zhang Daliang Guo Gustavo Friederichs Key laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of EducationZhejiang Sci-Tech UniversityHangzhou 310018China Key lab of Pulp and Paper Science&Technology of Ministry of Education Qilu University of TechnologyJinan 250353China Department of Chemical Engineering&Limerick Pulp and Paper Centre University of New BrunswickFrederictonNew BrunswickCanadaE3B 5A3 Department of Forestry Santa Catarina State UniversityLages-SCZip Code 88.523-000Brazil

Cellulose is the most abundant renewable polymer in the nature,and cellulosic paper is widely used in our daily *** electroconductivity to cellulosic paper would allow this conventional material to hold great promise for a wide range of energy-related *** the present work,multi-walled carbon nanotube(MWCNT)/polyaniline(PANI)nanocomposites were synthesized via in situ oxidation polymerization process and characterized by FT-IR and ***,the application of the synthesized MWCNT/PANI nanocomposites as a wet-end filler for the production of electro-conductive paper was demonstrated/*** showed that the cellulosic paper was imparted with an electro-conductivity of up to 0.14 S·m^(-1) while exhibiting a pronounced improvement in mechanical properties as a function of the added MWCNT/PANI nanocomposites.

关键词： Carbon nano tubes Polyaniline Nanocomposites Oxidative polymerization Wet-lay process Cellulosic paper electro-conductivity Mechanical strength