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Cerium Methacrylate Assisted Preparation of Highly Thermally Conductive and Anticorrosive Multifunctional Coatings for Heat Conduction Metals Protection

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纳微快报:英文版 2023年第11期15卷 172-184页

作者： fei Xu peng Ye Jianwen peng Haolei Geng Yexiang Cui Di Bao Renjie Lu Hongyu Zhu Yanji Zhu Huaiyuan Wang School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350People’s Republic of China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192People’s Republic of China Tianjin Key Lab Composite&Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjin 300072People’s Republic of China State Key Laboratory of Chemical Engineering and Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin UniversityTianjin 300072People’s Republic of China Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology Tianjin UniversityTianjin 300072People’s Republic of China

Preparing polymeric coatings with well corrosion resistance and high thermal conductivity(TC)to prolong operational life and ensure service reliability of heat conductive metallic materials has long been a substantive and urgent need while a difficult *** we report a multifunctional epoxy composite coating(F-CB/CEP)by synthesizing cerium methacrylate and ingeniously using it as a novel curing agent with corrosion inhibit for epoxy resin and modifier for boron nitride through"cation-π"*** prepared F-CB/CEP coating presents a high TC of 4.29 W m^(−1)K^(−1),which is much higher than other reported anti-corrosion polymer coatings and thereby endowing metal materials coated by this coating with outstanding thermal management performance compared with those coated by pure epoxy ***,the low-frequency impedance remains at 5.1×10^(11)Ωcm^(2)even after 181 days of immersion in 3.5 wt%NaCl ***,the coating also exhibits well hydrophobicity,self-cleaning properties,temperature resistance and *** work provides valuable insights for the preparation of high-performance composite coatings with potential to be used as advanced multifunctional thermal management materials,especially for heat conduction metals protection.

关键词： Epoxy coatings Thermal conductivity Anti-corrosion Hydrophobicity Cerium methacrylate

Excess PbI_(2)evolution for triple-cation based perovskite solar cells with 21.9%efficiency

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Journal of Energy Chemistry 2022年第3期31卷 152-160,I0005页

作者： Zhu Ma Dejun Huang Qianyu Liu Guangyuan Yan Zheng Xiao Dong Chen Jiaxuan Zhao Yan xiang Changtao peng Haijin Li Meng Zhang Wenfeng Zhang Lianfeng Duan Yuelong Huang Institute of Photovoltaic Southwest Petroleum UniversityChengdu 610500SichuanChina Department of Chemistry Shantou UniversityShantou 515063GuangdongChina

The triple cation mixed perovskites(Cs FAMA)are known as one of the most efficient candidates for perovskite solar cells(PSCs).It is found that the power conversion efficiency(PCE)of triple-cation based devices would increase with the test time extending,and the maximum efficiency is normally obtained after several days aging ***,the relationship between enhanced device performance,excess PbI_(2)and its evolution in triple cation perovskite films of initial days was systematically *** Cs FAMA-PSCs are prepared by two-step methods under two environmental conditions,including in the glove box and the ambient air(30%humidity).After 7 days testing,the maximum PCE of PSCs under two conditions dramatically increased 12.4%and 12.2%,reached 21.68%and 21.89%,*** initial days,the XRD peak intensities of perovskite phase gradually decreased and those corresponding to PbI_(2)*** with time-resolved photoluminescence(TRPL)and kelvin probe force microscopy(KPFM),it was found that the defects were passivated with the evolution of PbI_(2).This work reveals the excess PbI_(2)and its evolution in perovskite film,which can further supplement the understanding of PbI_(2)defect passivation.

关键词： Evolution of PbI_(2) Defect passivation Two-step method Triple cation Perovskite solar cells

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基于不变矩和改进SVM的牛肉大理石纹评级

现代食品科技 2015年第4期31卷 17-22 136,136页

作者：吴一全曹鹏祥王凯陶飞翔南京航空航天大学电子信息工程学院江南大学食品科学与技术国家重点实验室中国人民解放军93173部队

针对牛肉大理石纹人工评级过程中人为误差干扰大的问题,研究利用图像处理技术提高牛肉大理石纹评级的客观性并增强自动化程度,提出基于不变矩、灰度共生矩阵和混沌蜂群优化混合核函数支持向量机(Support Vector Machine,SVM)的牛肉大理... 详细信息

针对牛肉大理石纹人工评级过程中人为误差干扰大的问题,研究利用图像处理技术提高牛肉大理石纹评级的客观性并增强自动化程度,提出基于不变矩、灰度共生矩阵和混沌蜂群优化混合核函数支持向量机(Support Vector Machine,SVM)的牛肉大理石纹评级法。首先计算牛肉大理石纹图像的不变矩和灰度共生矩阵统计量并由此构造特征向量;然后将训练和测试样本输入到混合核函数SVM,采用混沌蜂群算法优化SVM中的惩罚因子及核参数,使其分类识别性能达到最优;最后输入待评级样本进行分类识别,得到最优评级结果。大量实验结果表明:根据我国NY/T676-2010牛肉大理石纹标准图谱,评级正确率分别达到100%(一级)、93.3%(二级)、93.3%(三级)、96.7%(四级)、100%(五级)。与基于灰度矩和SVM法、基于灰度共生矩阵和BP(Back Propagation)神经网络法相比,本文所得评级正确率最高,且与专业评级师的实际评级情况最相符。

关键词：牛肉大理石纹评级图像处理不变矩灰度共生矩阵混沌蜂群优化混合核函数支持向量机

Status of aquatic organisms resources and their environments in Yangtze River system(2017-2021)⋆

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Aquaculture and Fisheries 2024年第5期9卷 833-850页

作者： Haile Yang Li Shen Yongfeng He Huiwu Tian Lei Gao Jinming Wu Zhigang Mei Nian Wei Lin Wang Tingbing Zhu feifei Hu Jinling Gong Hongchun Du Xinbin Duan Huatang Deng Daoqun Wang Fengyue Zhu Yunfeng Li Fan Wu Huijun Ru Yan Zhang Junyi Li Junlin Yang Yuntao Zhou Dongdong Fang Yinping Wang Danqing Lin Yanping Yang Peijie Li Silei Liu Jian Yang Ping Zhuang Sikai Wang Tao Zhang Gang Yang Wenbo Yang Lilai Yuan Kun Cao Shuo Xu Huiyuan Liu Zhiqiang Liang Chongrui Wang Hong Li Xiping Yuan Xin Yang Yilong Fu Yanping Zhang Haixin Zhang Zhiying Tao Sheng Wang Xiaoping Gao Binsong Jin Kemao Li Guojie Wang Shenglong Jian Yingqin Li Chenjiang Xue Chunyun Lei Shaowei Xue Yi Sun Bin Zhu Ke Shao Xingkun Hu Meihua Xiong Jun Du Bin He Tao Yan Yingying Huang Yuanchao Zou Biwen Xie Yongming Wang Bin Li fei Liu Yaoyao Zhang fei Fan Zhijian Wang Jing Huang Haoran Gu Hailong Ge Yan Dan Yan Li Shuqiao Wang Chuang Zhang Lu Zhou Xue Wang Sheng Zeng Yan xiang Xugang He Jianhui Qin Chengxing Xia Jie Hou Yifu Shi Lifang Gao Zhiqiang Zhu Hongbao Shen Yun Du Xuejun Duan Jiawu Xiong Deguo Yang Shaoping Liu Zhaohui Ni Hui Zhang Kai Liu Feng Zhao Yingren Li Jianwei Wang Qiwei Wei Yangtze River Fisheries Research Institute Chinese Academy of Fishery SciencesWuhan430223China Institute of Hydrobiology Chinese Academy of SciencesWuhan430072China Fishery Resource and Environment Research Center Chinese Academy of Fishery SciencesBeijing100141China Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization Ministry of Agriculture and Rural AffairsFreshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi214081China East China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesShanghai200090China Institute of Fisheries Engineering Chinese Academy of Fishery SciencesBeijing100141China Hunan Fisheries Science Institute Changsha410153China Jiangxi Fisheries Research Institute Nanchang330039China Jiujiang Academy of Fishery Sciences Jiujiang332000China School of Life Sciences Nanchang UniversityNanchang330031China Qinghai Provincial Fishery Technology Extension Center Xining810012China Yunnan Academy of Fishery Sciences Kunming650111China Institute of Hydroecology Ministry of Water Resources and Chinese Academy of SciencesWuhan430079China Fisheries Institute Sichuan Academy of Agricultural SciencesChengdu611731China School of Life Sciences Neijiang Normal UniversityNeijiang641100China School of Life Sciences Southwest UniversityChongqing400715China Chongqing Fishery Sciences Research Institute Chongqing401120China Guizhou Fisheries Research Institute Guiyang550025China College of Fisheries Huazhong Agricultural UniversityWuhan430072China Hubei Fisheries Science Research Institute Wuhan430070China Shaanxi Fisheries Research Institute Xi’an710086China Innovation Academy for Precision Measurement Science and Technology Chinese Academy of SciencesWuhan430077China Nanjing Institute of Geography and Limnology Chinese Academy of SciencesNanjing210008China Central South Inventory and Planning Institute of State Forestry and Grassland Administration Changsha410014China

The Yangtze River is the mother river of *** promote the aquatic ecosystem protection of the great river,the Project of Yangtze Fisheries Resources and Environment Investigation(2017-2021)supported by the Ministry of Agriculture and Rural Affairs,*** carried out by 24 institutes and universities that located in the Yangtze River basin surveys the status of(1)fish species composition and spatial distribution,(2)current fish abundance,(3)endangered fishes,(4)Yangtze finless porpoise,(5)aquatic eco-environments,(6)water-level fluctuation areas,(7)capture fisheries and recreational fisheries of the Yangtze River mainstream and 10 of its main tributaries,including Yalong River,Heng River,Min River(including Dadu River),Chishui River,Tuo River,Jialing River,Wu River,Han River,Dongting Lake and Poyang *** results showed that there were 443 fish species(belonging to 163 genus,37 families,and 18 orders)before 2017,but only 323 fish species(including 15 new recorded exotic species)were recorded in the project of *** them,Cyprinus carpio,Carassius auratus,Hypophthalmichthys molitrix,Pelteobagrus fulvidraco,Coilia brachygnathus,Silurus asotus,Saurogobio dabryi,Ctenopharyngodon idellus,Pelteobagrus nitidus,Hemiculter leucisculus,Siniperca chuatsi,Coreius heterodon,Culter alburnus,Parabramis pekinensis,and Aristichthys nobilis were the dominant species across the whole Yangtze River *** is estimated that there were 886 million individuals weighing 124.8 million kg,merely equivalent to 27.3%of the resources in 1950s,30.9%of the resources in 1960s,or 58.7%of the resources in *** the new list of protected fishes that recorded in the Yangtze River system,only 15 of 29 were collected in this project of *** gladius has been affirmed to be Extinct by International Union for Conservation of Nature(IUCN).The wild individuals of Tenualosa reevesii and Luciobrama macrocephalus have disappeared for many years and maybe have been extinct

关键词： Fishes Yangtze finless porpoise Resources Aquatic ecosystem Fisheries Background investigation Yangtze river system

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浅析中国政府在中印边界争端中的危机处理

当代中国史研究 2006年第1期13卷 79-86页

作者：黄想平齐鹏飞中国人民大学马克思主义学院

1962年前后,印度政府在中印边境地区推行的“前进政策”,不仅挑战了新中国外交政策的根本原则,而且严重威胁了中国西南边境的安全与稳定,使得中印两国围绕边界问题的争端发展成为一场国家关系危机。中国政府应对这场危机的决策过程,既... 详细信息

1962年前后,印度政府在中印边境地区推行的“前进政策”,不仅挑战了新中国外交政策的根本原则,而且严重威胁了中国西南边境的安全与稳定,使得中印两国围绕边界问题的争端发展成为一场国家关系危机。中国政府应对这场危机的决策过程,既体现了危机处理的一般规律,又反映了中国领导人进行危机决策的一些独特的原则和方式。

关键词：中印边界争端危机处理前进政策

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新型组合捕收剂从某尾矿中回收钛试验研究

世界有色金属 2024年第8期 45-47页

作者：林雪梅李云红孙志辉郄鹏飞苏梓辉河北民族师范学院河北承德067000 华北地质勘查局五一四地质大队河北承德067000

钛捕收剂的研究是含钛矿石浮选技术发展的重要方向。通过承德某尾矿浮选试验、扫描电镜、能谱、XRD等测试,研究了新型捕收剂PMCTF、PMCTF与N-羟基苯甲酰胺组合捕收剂、PMCTF与N,2-二羟基苯甲酰胺组合捕收剂、PMCTF与油酸钠组合捕收剂对... 详细信息

钛捕收剂的研究是含钛矿石浮选技术发展的重要方向。通过承德某尾矿浮选试验、扫描电镜、能谱、XRD等测试,研究了新型捕收剂PMCTF、PMCTF与N-羟基苯甲酰胺组合捕收剂、PMCTF与N,2-二羟基苯甲酰胺组合捕收剂、PMCTF与油酸钠组合捕收剂对尾矿钛浮选的影响。pH值在5.5左右时,新型捕收剂对钛具有较好的捕收性能。尾矿与组合捕收剂均发生化学吸附和物理吸附,捕收效果良好。

关键词：钛捕收剂钒钛磁铁矿尾矿浮选

Novel plant activators with thieno[2,3-d]-1,2,3-thiadiazole-6-carboxylate scaffold: Synthesis and bioactivity

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Chinese Chemical Letters 2013年第11期24卷 967-969页

作者： Qing-Shan Du Yan-Xia Shi peng-fei Li Zhen-Jiang Zhao Wei-Ping Zhu Xu-Hong Qian Bao-Ju Li Yu-Fang Xu Shanghai Key Laboratory of Chemical Biology School of Pharmacy East China University of Science and Technology Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences

The 1,2,3-thiadiazole-carboxylate moiety was reported to be an important pharmacophore of plant *** this study,a series of novel plant activators based on thieno[2,3-d]-1,2,3-thiadiazole-6-carboxylate were designed and synthesized and their biological activity as plant activators was *** structures of the novel compounds were identifed by1H NMR,19F NMR and *** in vivo bioassay showed that these novel compounds had good effcacy against seven plant ***,compounds 1a and 1c were more potent than the commercialized plant activator *** no fungicidal activity was observed for the active compounds in the in vitro assay,which matched the requirements as plant activators.

关键词： Thieno[2 3-d]-1 2 3-thiadiazole-6-carboxylate derivatives Plant activator Systemic acquired resistance

Bartonella Species Detected in the Plateau Pikas(Ochotona curzoiae) from Qinghai Plateau in China

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Biomedical and Environmental Sciences 2015年第9期28卷 674-678页

作者： RAO Hua xiang YU Juan GUO peng MA Yong Cheng LIU Qi Yong JIAO Ming MA Zhong Wen GE Hua WANG Chun xiang SONG Xiu Ping SHI Yan LI Dong Mei Institute for Communicable Disease Control and Prevention Qinghai Center for Disease Control and Prevention Center of Hygiene Inspection Qinghai Center for Disease Control and Prevention State Key Laboratory of Infectious Disease Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesNational Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and Prevention

Bartonella species can infect a variety ofmammalian hosts and cause a broad spectrum ofdiseases in humans, but there have been no reportsof Bartonella infection in Ochotonidae. This is thefirst study to detect Bartonella in plateau pikas inthe Qinghai plateau, providing baseline data for therisk assessment of human Bartonella infection inthis area. We obtained 15 Bartonella strains from79 pikas in Binggou and Maixiu areas of Qinghaiwith a positive rate of 18.99%. Based on thephylogenetic analysis of the Bartonella citratesynthase （gltA） gene sequences, most strains wereclosely related to B. taylorii （3/15） and B. grahamii（12/15）. The latter is a pathogenic strain in *** results suggest that a corresponding preventionand control strategy should be taken intoconsideration in the Qinghai province.

关键词： from Qinghai Plateau in China Ochotona curzoiae

Preventive and protective management for coronavirus disease 2019 patients undergoing emergent cardiac surgery

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Chinese Medical Journal 2021年第1期134卷 50-52页

作者： fei xiang Nian-Guo Dong Liang Tao Jia-Hong Xia Xin Chen Department of Thoracic and Cardiovascular Surgery Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu 210006China Department of Cardiovascular Surgery Union Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Cardiac Surgery Wuhan Asia Heart HospitalWuhanHubei 430022China

The coronavirus disease 2019(COVID-19)pandemic has recently put global health services under escalating *** patients who are known to be COVID-19 positive or at high suspicion for COVID-19 infection,although non-operative treatment is preferred for stable cardiovascular diseases to reduce the exposure,emergent cardiac surgery is still necessary when the primary concern is life-threatening and there is no alternative option.

关键词： protective patients surgery