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Anticorrosion performance of the coating/metal system by electrochemical impedance spectra

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Journal of University of Science and Technology Beijing 2008年第4期15卷 457-460页

作者： Yinghuai Zhang lining xu Minxu Lu Pu Zhang School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

In order to investigate the anticorrosion performance of the organic coating/metal system, electrochemical impedance spectra （EIS） were measured in the 3.5wt% NaCl solution, the chemical component and the formation of corrosion products scale were analyzed by laser Raman microspectroscopy, and the pattern of the organic coating/metal system was observed by scanning electron microscopy （SEM）. The characteristics and the delamination process of the organic coating/metal system were investigated systematically, and the emphases were on the transportation of the corrosive medium and the changes of the coating/metal interface. The results show that the impedance decreases at the initial immersion, then increases at the middle-immersion, and again decreases at last, which is related to the corrosion products scale. The concentration of Cl in the coating, which destroys the corrosion products scale, increases with the immersion time.

关键词： organic coating electrochemical impedance spectra corrosion product scale anticorrosion

The role of hydrogen in the corrosion and cracking of steels-a review

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Corrosion Communications 2021年第4期4卷 23-32页

作者： Wenyao Li Ruohan Cao lining xu Lijie Qiao Beijing Advanced Innovation Center for Material Genetic Engineering University of Science and Technology Beijing

In many processes of steel industrial, including steel manufacture, storage, and service, hydrogen could be absorbed into metallic materials, and the absorbed hydrogen seriously impaired its corrosion resistance. This paper provides a comprehensive review on the effects of hydrogen on passive film, anodic dissolution, pitting corrosion and stress corrosion cracking, and based on the review the mechanism by which hydrogen promotes corrosion of steel and subsequently leads to cracking has been discussed. It is envisaged that hydrogen harms the stability of the passive film and as a result, escalates anode's activation of steel, eventually leading to pitting and stress corrosion cracking.

关键词： Hydrogen Steel Corrosion Cracking Passive film

Anxiety and depression in older adult patients undergoing elective liver surgery in allopatry medical treatment

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iLIVER 2022年第2期1卷 111-116页

作者： lining xu Yingying xu Guiping Li Bo Yang Department of General Surgery The Second Medical Center&National Clinical Research Center for Geriatric DiseasesChinese PLA General HospitalBeijing100853China Department of Internal Medicine Henan Cancer HospitalZhengzhou450003China Department of Radiology Hubei Province Integrated Hospital of Chinese and Western MedicineWuhan430015China Department of Radiology Affiliated Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China

Background:Allopatry medical treatment is common in ***,allopatry medical therapy can result in many problems,including a negative psychological impact on *** undergoing liver surgery often experience anxiety and *** understand the psychological status of older adult patients undergoing surgery better,this study was designed to investigate the incidence of anxiety and depression in older adult patients undergoing elective liver surgery and to analyze factors associated with it in allopatry medical ***:A total of 173 older adult patients undergoing elective liver surgery were included in the *** were evaluated using the hospital anxiety and depression scale(HADS).The contributing factors affecting the psychological state of older adult patients undergoing elective surgery were analyzed using a linear regression ***:The HADS-A(hospital anxiety and depression scale-anxiety).The correlation(scale)score of the older adult patients undergoing elective liver surgery was(8.692.38),including 53 asymptomatic patients,86 suspicious patients,and 34 symptomatic *** HADS-D(hospital anxiety and depression scale-depression)score was(8.312.90),including 83 asymptomatic patients,56 suspicious patients,and 34 symptomatic *** analysis showed that residence and complication grade(Clavien–Dindo Classification of Surgical Complications or Accordion Severity Grading System)significantly correlated with the anxiety level of patients undergoing elective ***,a requirement of blood transfusion,total transfusion volume,and Accordion complication grade showed a significant correlation with depression in patients undergoing elective ***:Anxiety and depression in older adult patients undergoing elective liver surgery were *** differences(local patients vs non local patients)and the severity of complications were the risk factors for anxiety and depression in ol

关键词： Elective liver surgery Older adult patients Anxiety Depression

Establishment of a risk assessment system for complications of hepatectomy based on preoperative variables

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iLIVER 2022年第4期1卷 217-224页

作者： lining xu Guiping Li Bo Yang Department of General Surgery The Second Medical Center&National Clinical Research Center for Geriatric DiseasesChinese PLA General HospitalBeijing 100853China Department of Radiology Hubei Province Integrated Hospital of Chinese and Western MedicineWuhan 430015China Department of Radiology Affiliated Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China

Background and aims:To reduce the incidence of postoperative complications,it is important to predict them and intervene before surgery if ***,there is no ideal system to evaluate the overall risk of post-operative complications of liver surgery on the basis of preoperative ***,this study aimed to design and validate a risk assessment system to predict postoperative complications of hepatectomy on the basis of preoperative ***:Binomial logistic regression was used to derive the“hepatectomy overall risk formula”(HORF)for predicting postoperative complications on the basis of preoperative ***:Multivariate analysis revealed that Child–Pugh grade B–C(odds ratio[OR]=1.984,p=0.002),medical diseases requiring drug treatment(OR=1.883,p=0.003),major hepatectomy(OR=1.947,p7 days(OR=1.565,p=0.004)were independent risk factors for postoperative complications of *** area under the curve for the HORF was *** optimal cut-off value for predicting complications was 0.32(32%).The area under the curve for the HORF in the validation dataset was ***:The HORF can accurately predict postoperative complications of hepatectomy on the basis of pre-operative variables,and thus enables the determination of the necessity for intervention before surgery.

关键词： Hepatectomy Complication Prediction Preoperative

Interactive effect of thermal aging and proton irradiation on microstructural evolution and hardening ofδ-ferrite in 308L stainless steel weld metal

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Journal of Materials Science & Technology 2024年第3期170卷 140-155页

作者： Xiaodong Gao Xiaodong Lin Tao Guo lining xu Yaolei Han Baolong Jiang Xingyuan Mei Qunjia Peng Lijie Qiao Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Institute of Materials Shanghai UniversityShanghai 200072China School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Suzhou Nuclear Power Research Institute Suzhou 215004China State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China

In the harsh service environment of high temperature and intense neutron irradiation in water-cooled nuclear reactors,the austenitic stainless steel weld overlay cladding on the inner surface of the reactor pressure vessel suffers from thermal aging and irradiation damage simultaneously,which can induce microstructural evolution and hardening of the *** it is quite difficult to achieve this simul-taneous process out of the pile,two kinds of combined experiments,i.e.,post-irradiation thermal aging and post-aging irradiation were performed on 308 L stainless steel weld metals in this *** interactive effect of thermal aging and proton irradiation on microstructural evolution and hardening ofδ-ferrite in 308 L weld metal was investigated by combining atom probe tomography,transmission elec-tron microscopy and nanoindentation *** results revealed that thermal aging could eliminate the dislocation loops induced by irradiation and affect the phase transition process by accelerating spinodal decomposition and G-phase precipitation,thus enhancing hardening of irradiatedδ-*** the effect of irradiation on the microstructure and hardening of thermally agedδ-ferrite,however,intensive collision cascades can intensify G-phase precipitation and dislocation loop formation but decrease spinodal decomposition,leading to a limited effect on hardening of thermally agedδ-***,the interaction of thermal aging and irradiation can promote G-phase ***,the interaction can causeδ-ferrite hardening,which is mainly influenced by spinodal decomposition,followed by G-phase and dislocation loops,where spinodal decomposition and G-phase cause hardening by inducing strain fields.

关键词： Austenitic stainless steel weld metals Thermal aging Proton irradiation Interaction Microstructural evolution Hardening

Palladium nanoplates scotch breast cancer lung metastasis by constraining epithelial-mesenchymal transition

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National Science Review 2021年第7期8卷 124-136页

作者： Shunhao Wang Jingchao Li Mei Chen Liting Ren Wenya Feng lining xu Xiaolan Chen Tian Xia Nanfeng Zheng Sijin Liu State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences University of Chinese Academy of Sciences State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials Department of Chemistry Xiamen University College of Materials Science and Engineering Hunan University Division of Nanomedicine Department of Medicine California Nano Systems Institute University of CaliforniaLos Angeles

Metastasis accounts for the majority of cancer deaths in many tumor types including breast ***-mesenchymal transition(EMT) is the driving force for the occurrence and progression of metastasis, however, no targeted strategies to block the EMT program are currently available to combat metastasis. Diverse engineered nanomaterials(ENMs) have been reported to exert promising anti-cancer effects, however, no ENMs have been designed to target EMT. Palladium(Pd) nanomaterials, a type of ENM, have received substantial attention in nanomedicine due to their favorable photothermal performance for cancer therapeutics. Herein, Pd nanoplates(Pd PL) were found to be preferentially biodistributed to both primary tumors and metastatic tumors. Importantly, Pd PL showed a significant inhibition of lung metastasis with and without near-infrared(NIR) irradiation. Mechanistic investigations revealed that EMT was significantly compromised in breast cancer cells upon the Pd PL treatment, which was partially due to the inhibition of the transforming growth factor-beta(TGF-β) signaling. Strikingly, the Pd PL was found to directly interact with TGF-β proteins to diminish TGF-β functions in activating its downstream signaling, as evidenced by the reduced phosphorylation of Smad2. Notably,TGF-β-independent pathways were also involved in undermining EMT and other important biological processes that are necessary for metastasis. Additionally, NIR irradiation elicited synergistic effects on PdPL-induced inhibition of primary tumors and metastasis. In summary, these results revealed that the Pd PL remarkably curbed metastasis by inhibiting EMT signaling, thereby indicating the promising potential of Pd PL as a therapeutic agent for treating breast cancer metastasis.

关键词： palladium nanoplates tumor targeting lung metastasis epithelial-mesenchymal transition TGF-β

6.5%Cr钢在高温高压CO_2环境下的腐蚀行为研究

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金属学报 2016年第6期52卷 672-678页

作者：许立宁王贝路民旭北京科技大学新材料技术研究院腐蚀与防护中心北京100083

利用高压釜,研究了6.5%Cr钢在80℃和0.8 MPa CO_2条件下的腐蚀行为.利用SEM和EDS研究了腐蚀产物膜表面和截面微观形貌以及Cr在腐蚀产物膜中的富集状况.利用高温高压电化学测试研究了线性极化电阻和电化学阻抗谱(EIS)随腐蚀时间的变化.... 详细信息

利用高压釜,研究了6.5%Cr钢在80℃和0.8 MPa CO_2条件下的腐蚀行为.利用SEM和EDS研究了腐蚀产物膜表面和截面微观形貌以及Cr在腐蚀产物膜中的富集状况.利用高温高压电化学测试研究了线性极化电阻和电化学阻抗谱(EIS)随腐蚀时间的变化.结合溶液离子浓度测试,探讨了腐蚀产物膜生长机制.结果表明,6.5%Cr钢腐蚀速率为0.72 mm/a,腐蚀产物膜中存在Cr的富集,Cr/Fe之比超过了5∶1.不同腐蚀时间下,溶液中Cr3+含量都很低,说明Cr很少进入溶液.

关键词： 6.5%Cr钢 CO_2腐蚀高温高压腐蚀产物膜 Cr富集

Perioperative factors related to prognosis of regular hepatectomy in comparison with irregular hepatectomy

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Chinese Medical Journal 2014年第2期127卷 239-245页

作者： Feng Zhiqiang Li Hongqi Zhang Jinqian xu lining Xiao Mei Huang Zhiqiang Zhang Hongyi Department of Hepatobiliary Surgery Air Force General Hospital of People's Liberation Army Beijing 100142 China Institute of Infectious Diseases Beijing Ditan Hospital Capital Medical University Beijing 100015 China Department of Surgery Clinical Division of South Building Institute of Hepatobiliary Surgery General Hospital of Chinese People's Liberation Army Beijing 100853 China

Background The aim of this research was to analyze the perioperative factors of regular hepatectomy and irregular *** superiority of the clinical application of the two methods was compared in the perioperative *** From 1986 to 2011,1798 patients underwent consecutive liver resections with regular hepatectomy and irregular hepatectomy at the Air Force General Hospital of People＇s Liberation Army and the General Hospital of Chinese People＇s Liberation *** medical documentation was investigated *** In patients on whom regular hepatectomy and irregular hepatectomy were performed,there was no significant difference in perioperative blood loss,complications,in-hospital mortality,hospital stay,and so *** in regular hepatectomy,operating time was an independent risk factor （P ＜0.001,OR=1.004）.Conclusions There was no significant difference between the perioperative risk of regular hepatectomy and that of irregular hepatectomy.

关键词： hepatectomy perioperative procedures prognosis

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鲁迅藏胡适著《五十年来之中国文学》

鲁迅研究月刊 2023年第12期 93-96,103页

作者：许丽宁山东师范大学文学院 250014

胡适的《五十年来之中国文学》写成于1922年3月3日,收入1923年2月《申报》五十周年纪念刊《最近之五十年(1872-1922):申报馆五十周年纪念》。1924年3月《申报》馆为此文出版单行本,鲁迅所藏正是此版。全书共98页,定价4角。书籍封面(见封... 详细信息

胡适的《五十年来之中国文学》写成于1922年3月3日,收入1923年2月《申报》五十周年纪念刊《最近之五十年(1872-1922):申报馆五十周年纪念》。1924年3月《申报》馆为此文出版单行本,鲁迅所藏正是此版。全书共98页,定价4角。书籍封面(见封三)较为简洁,页面上端自右向左横向书写“申报五十周年纪念刊之一种”,中部纵向书写题名“五十年来之中国文学”,并配以红色边框,下端署名“胡适”。封面左侧有胡适钢笔题字“送给鲁迅先生。适。”

关键词：申报馆《申报》书籍封面胡适五十周年单行本