|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Distinct beneficial effect of Sn on the corrosion resistance of Cr-Mo low alloy steel显示文摘In this work,the beneficial effect of Sn addition on the corrosion resistance mechanism of Cr-Mo low alloy steel was studied.Results demonstrated that Sn improves the corrosion resistance of the steel matrix mainly by influencing the microstructural transformation.Sn addition and the synergistic effect of Sn,Cr,and Mo promote the formation of α-FeOOH,SnO_(2),SnO,Cr(OH)_(3),and molybdates,lead to the improved protection and stability of the rust layer.This synergistic effect also endows the inner rust layer with cation selectivity,preventing the further penetration of Cl-and inhibiting the localized corrosion of steel. | Meihui Sun Xiaojia Yang Cuiwei Du Zhiyong Liu Yong Li Yumin Wu Hongyu San Xiandong Su Xiaogang Li | 2021 | Journal of Materials Science & Technology2021，，22： | 6 |
| 2 | Corrosion Resistance of 316L Stainless Steel in Acetic Acid by EIS and Mott-Schottky显示文摘The properties of the passivation film formed on 316L stainless steel were studied by Electrochemical Impedance Spectroscopy(EIS),Mott-Schottky and Voltammetry measurements in high- temperature acetic acid.The results show that the passivation film formed on 316L stainless steel is stable in 60% acetic acid solution from 25℃to 85℃.As temperature increased,the polarization resistance decreased but the interface capacitance increased.There was hardly any relation between temperature and the intrinsic property semiconductor.The passivation film represents the p-semiconductor property in the potential interval of-0.5-0.1 V;represents the n-semiconductor property in the potential interval of 0.1-0.9 V;and represents the p-semiconductor property in the potential interval of 0.9-1.1 V.The voltammetry measurements show that the structure of the passivation film is stable when the temperature is lower than 55℃ and that its stability decreased when this temperature is exceeded. | CHENG Xuequn LI Xiaogang YANG Lixia DU Cuiwei | 2008 | Journal of Wuhan University of Technology(Materials Science)2008，23，4： | 4 |
| 3 | Effects of sintering temperature on properties of porous mullite/corundum ceramic显示文摘 | Yang Fengkun Li Cuiwei Lin Yamei | | 0，，： | 1 |
| 4 | Stress corrosion cracking behavior of high-strength mooring-chain steel in the SO_(2)-polluted coastal atmosphere显示文摘21Cr2NiMo steel is widely used to stabilize offshore oil platforms;however,it suffers from stress-corrosion cracking(SCC).Herein,we studied the SCC behavior of 21Cr2NiMo steel in SO_(2)-polluted coastal atmospheres.Electrochemical tests revealed that the addition of SO_(2) increased the corrosion current.Rust characterization showed that SO_(2) addition densified the corrosion products and promoted pitting.Furthermore,slow strain rate tests demonstrated a high susceptibility to SCC in high SO_(2) contents.Fracture morphologies revealed that the stress-corrosion cracks initiated at corrosion pits and the crack propagation showed transgranular and intergranular cracking modes.In conclusion,SCC is mix-controlled by anodic dissolution and hydrogen embrittlement mechanisms. | Menghao Liu Zhiyong Liu Cuiwei Du Xiaoqin Zhan Xiaojia Yang Xiaogang Li | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，6： | 1 |
| 5 | Design and implemention of a new system for whole-atrial epicardial mapping 显示文摘 | YANG Cuiwei LU weijia WU xiaomei | 2007 | International Journal of Bioelectromagnetism (IJBEM)2007，9，1： | 1 |
| 6 | Storage, form, and influencing factors of karst inorganic carbon in a carbonate area in China显示文摘Carbonate rock chemical weathering carbon sinks reduce the rate of increase of the atmospheric CO_(2) concentration and global warming. However, uncertainty still exists in the estimation results of carbonate rock chemical weathering carbon sink fluxes(CCSF), and the contributions of climate change and ecological restoration to the CCSF are not clear. To this end, we compiled published site data on ion concentrations in different watersheds in China and used a classical thermodynamic dissolution model to reassess the potential and spatial and temporal patterns of the CCSF in China from 1991 to 2020. We quantified the contributions of temperature(MAT), precipitation(MAP), evapotranspiration(ET), soil water(SM), and the normalized difference vegetation index(NDVI) to the CCSF. The results revealed that(1) China's CCSF was 22.76 t CO_(2)km^(-2)yr^(-1), which was higher than the global average(15.77 t CO_(2)km^(-2)yr^(-1)). The total carbonate rock chemical weathering carbon sink(CCS) was 4772.67×10^(4)t CO_(2), contributing 14.91% of the global CCS through a carbonate rock area of 252.98×10^(4)km^(-2).(2) China's CCSF decreased gradually from southeast to northwest, with values of 33.14, 12.93, and7.27 t CO_(2)km^(-2)yr^(-1)in the southern karst, Qinghai-Tibetan karst, and northern karst regions, respectively.(3) The overall CCSF in China exhibited an increasing trend from 1991 to 2020, with a rate of increase of 0.16 t CO_(2)km^(-2)yr^(-1).(4) The contributions of the MAP, MAT, ET, SM, and NDVI to the CCSF were 63.3%, 3.02%, 27.5%, 3.1%, and 3.05%, respectively. Among them, the increase in precipitation was the main contributor to the increase in the CCSF in China over the last 30 years, while the enhancement of ET offset part of the positive contribution of the increase in precipitation to the CCSF. In conclusion, the results of this study provide a systematic quantification of the magnitude, the patterns, and the influencing factors of CCS over a long time series in China. The results are of great significance and provide a reference for the diagnosis and gap analysis of the national and global carbon neutrality capacities. | Chaochao DU Xiaoyong BAI Yangbing LI Qiu TAN Cuiwei ZHAO Guangjie LUO Luhua WU Fei CHEN Chaojun LI Chen RAN Sirui ZHANG Lian XIONG Fengjiao SONG Biqin XIAO Zilin LI Yingying XUE Mingkang LONG Qing LUO Xiaoyun ZHANG Minghui LI Xiaoqian SHEN Shu YANG | 2024 | Science China Earth Sciences2024，67，3： | 0 |
| 7 | Diverse O-methyltransferases catalyze the biosynthesis of floral benzenoids that repel aphids from the flowers of waterlily Nymphaea prolifera显示文摘Nymphaea is a key genus of the ANA grade(Amborellales,Nymphaeales,and Austrobaileyales)of basal flowering plants,which serve as a key model to study the early evolution of floral traits.In this study,we comprehensively investigated the emission,biosynthesis,and biological function of the floral scent in a night-blossoming waterlily Nymphaea prolifera.The headspace volatile collection combined with GC-MS analysis showed that the floral scent of N.prolifera is predominately comprised by methylated benzenoids including anisole,veratrole,guaiacol,and methoxyanisole.Moreover,the emission of these floral benzenoids in N.prolifera exhibited temporal and spatial pattern with circadian rhythm and tissue specificity.By creating and mining transcriptomes of N.prolifera flowers,12 oxygen methyltransferases(NpOMTs)were functionally identified.By in vitro enzymatic assay,NpOMT3,6,and 7 could produce anisole and NpOMT5,7,9,produce guaiacol,whereas NpOMT3,6,9,11 catalyzed the formation of veratrole.Methoxyanisole was identified as the universal product of all NpOMTs.Expression patterns of NpOMTs provided implication for their roles in the production of the respective benzenoids.Phylogenetic analysis of OMTs suggested a Nymphaea-specific expansion of the OMT family,indicating the evolution of lineage-specific functions.In bioassays,anisole,veratrole,and guaiacol in the floral benzenoids were revealed to play the critical role in repelling waterlily aphids.Overall,this study indicates that the basal flowering plant N.prolifera has evolved a diversity and complexity of OMT genes for the biosynthesis of methylated benzenoids that can repel insects from feeding the flowers.These findings provide new insights into the evolutional mechanism and ecological significance of the floral scent from early-diverged flowering plants. | Guanhua Liu Jianyu Fu Lingyun Wang Mingya Fang Wanbo Zhang Mei Yang Xuemin Yang Yingchun Xu Lin Shi Xiaoying Ma Qian Wang Hui Chen Cuiwei Yu Dongbei Yu Feng Chen Yifan Jiang | 2023 | Horticulture Research2023，10，12： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员