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The Role of Renewable Protocatechol Acid in Epoxy Coating Modification: Significantly Improved Antibacterial and Adhesive Properties

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Chinese Journal of Polymer Science 2024年第1期42卷 63-72,I0008页

作者： Ming-Xuan Chen jin-Yue Dai Li-Yue Zhang shuai-Peng Wang jing-Kai Liu Yong-Gang Wu Xin-Wu Ba Xiao-Qing Liu School of Chemistry and Materials Science Hebei UniversityBaoding 071000China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China Key Laboratory of Marine Materials and Related Technologies Chinese Academy of SciencesNingbo 315201China

It is of great significance to design epoxy coatings with superior antibacterial properties and high adhesive properties, as well as excellent processing, superior durability, and high transparency. However, it is still a challenge because of the common complex design and synthesis. Herein, the bio-based monomer protocatechuic acid(PCA) was used as raw material, the catechol structure with high bonding and antibacterial properties was introduced into the flexible alkane segment of ethylene glycol diglycidyl ether(EGDE) through an efficient, and green method, and it was cured with isophorone diamine(IPDA) to prepare corresponding thermosets. The cured resins exhibited excellent allaround qualities, particularly in bonding and antibacterial. When 30% PCA was added to pure epoxy resin, the adhesion between substrate and coating increased from 4.40 MPa to 13.60 MPa and the antibacterial rate of coating against E. coli and S. aureus could approach 100%. All of this is due to the fact that the catechol structure present in PCA has the ability to interact with various substrates and alter the permeability of bacterial cell membranes. The architecture of this method offers a fresh approach to dealing with the issues of challenging raw material selection and complex synthesis techniques.

关键词： Epoxy coatings Thermosets Catechol structure Antibacterial High adhesion

电解液温度对直流电解沉积纳米孪晶Cu微观结构的影响

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金属学报 2018年第3期54卷 428-434页

作者：程钊金帅卢磊中国科学院金属研究所沈阳材料科学国家(联合)实验室沈阳110016 中国科学技术大学材料科学与工程学院沈阳110016

通过控制直流电解沉积电解液温度制备出不同微观结构的块体纳米孪晶Cu样品。结果表明,当电解液温度由313 K降低至293 K,纳米孪晶Cu的平均晶粒尺寸由27.6 mm减小至2.8 mm,平均孪晶片层厚度由111 nm减小至28 nm。电化学测试表明,降低温度... 详细信息

通过控制直流电解沉积电解液温度制备出不同微观结构的块体纳米孪晶Cu样品。结果表明,当电解液温度由313 K降低至293 K,纳米孪晶Cu的平均晶粒尺寸由27.6 mm减小至2.8 mm,平均孪晶片层厚度由111 nm减小至28 nm。电化学测试表明,降低温度减缓了纳米孪晶Cu沉积的电化学过程,使阴极过电位增大,引起晶粒和孪晶的形核率增加,从而使晶粒尺寸和孪晶片层厚度同时减小。

关键词：直流电解沉积纳米孪晶Cu 电解液温度阴极过电位微观结构

Nanoindentation behavior and creep-induced cracking of long-term crept austenitic steel at 650℃

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Journal of Iron and Steel Research International 2024年第2期31卷 464-474页

作者： Zhen Zhang Yu-hang Duan shuai Wang jin-shan Chen An-zhe Wang Xiang-yang Mao Yuan-ji Shi Jie Zhang Ming Liu Zheng-fei Hu School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing211167JiangsuChina Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing211167JiangsuChina Jiangsu Wind Power Engineering Technology Center Nanjing210023JiangsuChina Nanjing Vocational University of Industry Technology Nanjing210023JiangsuChina Baoshan Iron&Steel Co. Ltd.Shanghai201900China Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing School of Mechanical Engineering and AutomationFuzhou UniversityFuzhou350116FujianChina School of Materials Science and Engineering Tongji UniversityShanghai201804China

The grain boundary(GB)damage of long-term crept HR3C(25Cr–20Ni–Nb–N)austenitic steel with solid solution state was investigated by nanoindentation test accompanied with in-situ electron back-scattered *** corresponding microstructure was characterized by scanning electron microscopy and transmission electron *** show that the increase in nanoindentation hardness at the GBs and triple grain junctions may be related to the dislocation accumulation and carbide growth during the *** M23C6 and dislocations piling-up at the GB accelerate the nucleation and coalescence of creep cavity along the *** nanoindentation hardness in grains varies with orientation of the stress *** orientation difference of neighbor grains may induce local high geometrically necessary dislocation densities and strain gradients near the GB,consequently causing stress concentration and subsequent crack growth at specific GBs.

关键词： Austenitic steel Creep Nanoindentation Grain orientation Creep-induced cracking

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区域环境保护行动的演化博弈分析

系统工程理论与实践 2015年第12期35卷 3107-3118页

作者：金帅杜建国盛昭瀚江苏大学管理学院镇江212013 南京大学社会科学计算实验中心南京210093

利用演化博弈模型,分析了博弈主体动态支付条件下区域环境保护行动的演化过程.研究结果表明,系统演化具有多重复杂路径,在很大程度上取决于双种群的初始状态及其相互激励关系.进而,识别了区域环境保护行动有效实施的边界条件与充要条件... 详细信息

利用演化博弈模型,分析了博弈主体动态支付条件下区域环境保护行动的演化过程.研究结果表明,系统演化具有多重复杂路径,在很大程度上取决于双种群的初始状态及其相互激励关系.进而,识别了区域环境保护行动有效实施的边界条件与充要条件;在此基础上,结合我国环境保护的具体国情,提出相应的改进措施与政策建议.

关键词：区域环境保护动态支付矩阵演化博弈演化稳定策略

添加剂浓度对直流电解沉积纳米孪晶Cu微观结构的影响

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金属学报 2016年第8期52卷 973-979页

作者：金帅程钊潘庆松卢磊中国科学院金属研究所沈阳材料科学国家(联合)实验室沈阳110016

采用直流电解沉积技术制备出具有高密度择优取向的纳米孪晶结构块体纯Cu样品.利用XRD,SEM和TEM等手段研究了添加剂浓度对其微观结构的影响.结果表明,样品由沿沉积方向生长的微米尺寸柱状晶粒构成,晶粒内含有高密度孪晶界,且大部分孪晶... 详细信息

采用直流电解沉积技术制备出具有高密度择优取向的纳米孪晶结构块体纯Cu样品.利用XRD,SEM和TEM等手段研究了添加剂浓度对其微观结构的影响.结果表明,样品由沿沉积方向生长的微米尺寸柱状晶粒构成,晶粒内含有高密度孪晶界,且大部分孪晶界平行于生长表面.添加剂(明胶)浓度对纳米孪晶Cu的孪晶片层厚度有明显影响,但对晶粒尺寸影响不大.无添加剂时,纯Cu样品中存在微米量级宽大孪晶片层,当添加剂浓度从0.5 mg/L增加到5 mg/L,孪晶片层厚度从150 nm减小至30 nm,且孪晶界生长更完整.其原因是随着添加剂浓度增加,阴极过电位增大,孪晶界形核率增加,从而使孪晶片层厚度减小.

关键词：纳米孪晶Cu 直流电解沉积孪晶片层尺寸添加剂

Dispersal patterns of Reeves's pheasant based on genetic and behavioral evidence

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Current Zoology 2024年第4期70卷 480-487页

作者： shuai Lu Xian Hou Shan Tian Zhengxiao Liu Yunqi Wang Ting jin Jianqiang Li Pengcheng Wang Jiliang Xu School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing 100083China State Key Laboratory of Efficient Production of Forest Resources Bejing Forestry UniversityBeijing 100083China Jiangsu Key Laboratory for Biodiversity and Biotechnology College of Life SciencesNanjing Normal UniversityNanjing 210o23China

Dispersal is an important life history trait that plays a crucial role in avoiding *** the dispersal pattern of a threatened species facilitates conservation *** species of Galliformes are forest-dwelling terrestrial birds with a weak dispersal ability and high conservation ***,little is known about the dispersal behavior and dispersal pattern of Galliformes species such as Reeves's pheasant Syrmaticus reevesi,a globally vulnerable species endemic to ***,we integrated behavioral and genetic analyses to inves-tigate the dispersal pattern of Reeves's *** results revealed that both females and males would disperse,although the overall dispersal pattern was more likely to be ***'s pheasant population had a low level of genetic diversity and a mild level of *** low genetic diversity was resulted from fragmented habitat,and male-biased dispersal may reduce the opportunity of *** research indicated that sex-biased dispersal patterns may be a behavioral mechanism adopted by wildlife to avoid inbreeding inafragmented habitat.

关键词： animal behavior dispersal Gallformes genetic diversity satellite tracking.

Retrospective analysis of patients with hepatocellular carcinoma complicated with human immunodeficiency virus infection after hepatectomy

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3851-3864页

作者： Jia-Jie Lu shuai Yan Lin Chen Lin-Ling Ju Wei-Hua Cai jin-Zhu Wu Department of Hepatobiliary Surgery Nantong Third People's HospitalMedical School of Nantong UniversityNantong 226000Jiangsu ProvinceChina Department of Medical School Nantong UniversityNantong 226300Jiangsu ProvinceChina Institute of Liver Disease Nantong Third People’s HospitalAffiliated Nantong Hospital 3 of Nantong UniversityNantong 226000Jiangsu ProvinceChina Department of Hepatobiliary Surgery Affiliated Nantong Hospital 3 of Nantong UniversityNantong 226006Jiangsu ProvinceChina

BACKGROUND Hepatocellular carcinoma(HCC)is the third leading cause of cancer death worldwide,with a 5-year relative survival rate of approximately 18%.The similarity between incidence and mortality(830000 deaths per year)underscores the bleak prognosis associated with the *** is the fourth most common malignancy and the second leading cause of cancer death in *** patients with HCC have a history of chronic liver disease such as chronic hepatitis B virus(HBV)or hepatitis C virus(HCV)infection,alcoholism or alcoholic steatohepatitis,nonalcoholic fatty liver disease,or nonalcoholic *** diagnosis and effective treatment are the keys to improving the prognosis of patients with *** the total number of human immunodeficiency virus(HIV)-infected patients is declining globally the incidence of HCC is increasing in HIVinfected patients,especially those who are coinfected with HBV or *** a result,people infected with HIV still face unique challenges in terms of their risk of developing *** To investigate the survival prognosis and clinical efficacy of surgical resection in patients with HCC complicated with HIV *** The clinical data of 56 patients with HCC complicated with HIV admitted to the Third Affiliated Hospital of Nantong University from January 2013 to December 2023 were retrospectively *** these,27 patients underwent hepatectomy(operation group)and 29 patients received conservative treatment(nonoperation group).All patients signed informed consents in line with the provisions of medical *** general data,clinicopathological features and prognoses for the patients in the two groups were analyzed and the risk factors related to the prognoses of the patients in the operation group were *** The median disease-free survival(DFS)and overall survival(OS)of HIV-HCC patients in the surgical group were 13 months and 17 months,respectively,and the median OS of patients in the nonsurgic

关键词： Hepatocellular carcinoma Human Immunodeficiency virus Liver resection Retrospective analysis Prognosis

龙凤山地区火石岭组火山岩输导体系特征与油气分布的关系

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中国石油大学学报（自然科学版） 2023年第1期47卷 38-49页

作者：侯帅蒋有录苏圣民金帅陈杏霞中国石油大学(华东)地球科学与技术学院山东青岛266580 中国石油化工股份有限公司东北油气分公司吉林长春130062

受构造、风化淋滤等作用影响,长岭断陷龙凤山地区火石岭组发育断层-不整合-有效输导层复合输导体系,影响油气运聚与分布。火石岭组内发育有上下两套含油气层,平面上自北部洼陷带至西部构造带,均有油气发现。通过分析不同类型输导体系分... 详细信息

受构造、风化淋滤等作用影响,长岭断陷龙凤山地区火石岭组发育断层-不整合-有效输导层复合输导体系,影响油气运聚与分布。火石岭组内发育有上下两套含油气层,平面上自北部洼陷带至西部构造带,均有油气发现。通过分析不同类型输导体系分布特征及演化规律,探讨输导体系与油气分布的关系。结果表明:研究区油气平面上分布广泛性以及纵向分布差异性与输导体系组合类型及演化过程密切相关;早期活动断裂以及有效输导层是原油运移至西部构造带形成下部含油气层的重要通道,晚期断裂、不整合结构以及有效输导层则是天然气运移至东部斜坡带形成上部气层的重要输导体系;输导体系组合及演化造成现今油气平面分布差异显著,表现为“早期远源含油,晚期近源富气”的特征。

关键词：火山岩油气分布断裂不整合有效输导层输导体系

共沉淀-熔盐法制备BaMoO_4:Eu^(3+)及其发光性能研究

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无机化学学报 2011年第1期27卷 25-29页

作者：金帅夏志国赵金秋中国地质大学(北京)材料科学与工程学院北京100083

以KCl-NaCl为熔盐,采用共沉淀前躯体-熔盐辅助焙烧法合成了红色发光材料BaMoO4∶Eu3+。运用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)及荧光光谱(PL)等测试手段,研究了熔盐辅助焙烧温度对粉体相结构、形貌和发光性能的影响,并对比了直... 详细信息

以KCl-NaCl为熔盐,采用共沉淀前躯体-熔盐辅助焙烧法合成了红色发光材料BaMoO4∶Eu3+。运用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)及荧光光谱(PL)等测试手段,研究了熔盐辅助焙烧温度对粉体相结构、形貌和发光性能的影响,并对比了直接采用共沉淀法合成BaMoO4∶Eu3+的结构与发光性能。结果表明:采用两种方法制备的BaMoO4∶Eu3+均是纯相,粒径随温度升高而增大。当KCl-NaCl复合熔盐焙烧温度大于700℃,BaMoO4晶粒在熔盐中实现了(111)面取向生长,得到均一的尖晶石型BaMoO4∶Eu3+微晶。光谱研究表明:共沉淀前躯体-熔盐辅助焙烧法合成样品在615 nm处的Eu3+的5D0-7F2发射明显得到加强,样品发出明亮的红色发射光。

关键词：熔盐合成法 BaMoO4∶Eu3+ 发光