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| 1 | Traditional Chinese medicine in COVID-19显示文摘COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2(SARSCo V-2)has spread across the globe,posing an enormous threat to public health and safety.Traditional Chinese medicine(TCM),in combination with Western medicine(WM),has made important and lasting contributions in the battle against COVID-19.In this review,updated clinical effects and potential mechanisms of TCM,presented in newly recognized three distinct phases of the disease,are summarized and discussed.By integrating the available clinical and preclinical evidence,the efficacies and underlying mechanisms of TCM on COVID-19,including the highly recommended three Chinese patent medicines and three Chinese medicine formulas,are described in a panorama.We hope that this comprehensive review not only provides a reference for health care professionals and the public to recognize the significant contributions of TCM for COVID-19,but also serves as an evidence-based in-depth summary and analysis to facilitate understanding the true scientific value of TCM. | Ming Lyu Guanwei Fan Guangxu Xiao Taiyi Wang Dong Xu Jie Gao Shaoqin Ge Qingling Li Yuling Ma Han Zhang Jigang Wang Yuanlu Cui Junhua Zhang Yan Zhu Boli Zhang | 2021 | Acta Pharmaceutica Sinica B2021，11，11： | 14 |
| 2 | In Situ Corrosion Monitoring of Mild Steel in a Simulated Tidal Zone without Marine Fouling Attachment by Electrochemical Impedance Spectroscopy显示文摘The corrosion behaviors of the isolated short and vertical long scale Q235 B steel in a simulated tidal zone were studied by electrochemical impedance spectroscopy(EIS) monitoring and corrosion weight loss calculation in an experimental indoor simulating trough.The results show that the corrosion rate of the isolated short scale Q235 B steel in the tidal zone acquired by the EIS agrees with the corrosion weight loss result.The corrosion rates of the short scale steel are in the order of middle tidal zone > the central zone between the middle tidal zone and low tidal zone > high tidal zone > low tidal zone.The fastest corrosion rate in the middle tidal zone is attributed to the longest wet time in a tidal cycle.According to the comparison of corrosion weight loss between the vertical long scale and isolated short scale specimens,the corrosion rate of vertical long scale specimens of Q235 B steel is lower than that of the isolated short scale specimens in the tidal zone,but the result is contrary in the immersion zone. | Xin Mu Jie Wei Junhua Dong Wei Ke | 2014 | Journal of Materials Science & Technology2014，30，10： | 11 |
| 3 | Effects of Cl- Ions on the Corrosion Behaviour of Low Alloy Steel in Deaerated Bicarbonate Solutions显示文摘The effect of Cl-ions on corrosion evolution of Ni Cu low alloy steel during immersion tests(up to 70days) in deaerated 0.05 mol/L bicarbonate solutions was investigated by in-situ electrochemical measurements combined with X-ray diffraction(XRD), scanning electron microscopy(SEM) and electron probe microanalysis(EPMA) characterisations. The results showed that due to the acceleration of substrate dissolution in the presence of Cl-, corrosion of Ni Cu low alloy steel underwent only two stages, i.e., a quick oxidation process followed by a final metastable passive state, without the initial slow anodic dissolution as observed in the Cl--free bicarbonate solution. The main components of the formed rust layer in the Cl--free bicarbonate solution were α-Fe OOH and Fe)_3O_4 , while apart from α-Fe OOH, (Fe)_6(OH)_(12)(CO)_3 was found evident instead of (Fe)_3O_4 in the Cl--containing solution. Metastable pits were only found in the Cl--containing solution where Cl-accumulated after the immersion test, confirming the attack of Cl-on the substrate after penetrating the formed corrosion product layer. | Yunfei Lu Junhua Dong Wei Ke | 2016 | Journal of Materials Science & Technology2016，32，4： | 11 |
| 4 | Effect of residual dissolved oxygen on the corrosion behavior of low carbon steel in 0.1 M NaHCO3 solution显示文摘The effect of residual dissolved oxygen(DO)on the corrosion behavior of carbon steel in 0.1 M Na HCO_3solution was investigated by electrochemical measurements,corrosion mass loss test,scanning electron microscopy(SEM)and X-ray diffraction(XRD).In the initial immersion stage,the increase of the dissolved oxygen concentration led to the change of from a reductive state of active dissolution to an oxidizing state of pseudo passivation in low carbon steel.While in the final stage,all the steels transformed into the steady state of pseudo passivation.In the anaerobic solution,the formation ofα-Fe OOH was attributed to the chemical oxidization of the ferrous corrosion products and the final cathodic process only included the reduction ofα-Fe OOH,while in the aerobic solution,it included the reduction of oxygen andα-Fe OOH simultaneously.As the main corrosion products,the content ofα-Fe OOH was increased while that of Fe_6(OH)_(12)CO_3was decreased with increasing concentration of dissolved oxygen.The total corrosion mass loss of the steel was promoted with the increase of dissolved oxygen concentration. | Fang Xue Xin Wei Junhua Dong Ini-Ibehe Nabuk Etim Changgang Wang Wei Ke | 2018 | Journal of Materials Science & Technology2018，34，8： | 8 |
| 5 | A low-carbon oriented probabilistic approach for transmission expansion planning显示文摘Following the deregulation of the power industry,transmission expansion planning(TEP)has become more complicated due to the presence of uncertainties and conflicting objectives in a market environment.Also,the growing concern on global warming highlights the importance of considering carbon pricing policies during TEP.In this paper,a probabilistic TEP approach is proposed with the integration of a chance constrained load curtailment index.The formulated dynamic programming problem is solved by a hybrid solution algorithm in an iterative process.The performance of our approach is demonstrated by case studies on a modified IEEE 14-bus system.Simulation results prove that our approach can provide network planners with comprehensive information regarding effects of uncertainties on TEP schemes,allowing them to adjust planning strategies based on their risk aversion levels or financial constraints. | Jing QIU Zhaoyang DONG Junhua ZHAO Ke MENG Fengji LUO Kit Po WONG Chao LU | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，1： | 8 |
| 6 | Effects of rare earth modifying inclusions on the pitting corrosion of 13Cr4Ni martensitic stainless steel显示文摘In this study,the pitting corrosion behavior of 13Cr4Ni martensitic stainless steel(BASE)and that modified with rare earth(REM)in 0.1 mol/L Na Cl solution were characterized.Techniques such as automatic secondary electron microscope(ASPEX PSEM detector),scanning electron microscope(SEM),transmission electron microscope(TEM),scanning Kelvin probe force microscope(SKP),potentiodynamic and potentiostatic polarizations were employed.The results obtained indicate that BASE steel contains Al_(2)O_(3)/Mn S,Al_(2)O_(3) and Mn S inclusions,while REM steels contain(La,Ce,Cr,Fe)-O and(La,Ce,Cr,Fe)-O-S inclusions.Compared with BASE steel,REM steel is more susceptible to induce the metastable pitting nucleation and repassivation,whereas it restrains the transition from metastable pitting to stable pitting.Adding 0.021%rare earth element to BASE steel can reduce the number and area of inclusions,while that of 0.058%can increase the number and enlarged the size of inclusions,which is also the reason that pitting corrosion resistance of 58 REM steel is slightly lower than that of 21 REM steel.In the process of pitting corrosion induced by Al_(2)O_(3)/Mn S inclusions,Mn S is preferentially anodic dissolved,and also the matrix contacted with Al_(2)O_(3) is subsequently anodic dissolved.For REM steels,anodic dissolution preferentially occurs at the boundary between inclusions and matrix,while(La,Ce,Cr,Fe)-O inclusions chemically dissolve in local acidic environment or are separated from steel matrix.The chemically dissolved substance(La^(3+) and Ce^(3+))of(La,Ce,Cr,Fe)-O inclusions are concentrated in pitting pits,which inhibits its continuous growth. | Changgang Wang Rongyao Ma Yangtao Zhou Yang Liu Enobong Felix Daniel Xiaofang Li Pei Wang Junhua Dong Wei Ke | 2021 | Journal of Materials Science & Technology2021，，34： | 8 |
| 7 | Insight into atmospheric corrosion evolution of mild steel in a simulated coastal atmosphere显示文摘The corrosion behavior of mild steel in a simulated coastal atmosphere environment has been investigated by the indoor accelerated wet/dry cyclic corrosion acceleration test(CCT),scanning electron microscopy(SEM),Raman spectroscopy and electrochemical measurements.During the CCT test of 60 cycles,the evolution of logarithmic(corrosion rate)vs.logarithmic(CCT cycles)presents a turning point at the 5th cycle,presenting a tendency to increase first and then decrease to gradually stabilize as the CCT cycle prolonged.Before the 5th cycle,γ-FeOOH andβ-FeOOH and Fe_(3)O_(4)were detected,respectively.And then,α-FeOOH as a new chemical composition was detected in the subsequent corrosion cycles.It is found that,after long term corrosion,the rust separated into a relatively dense inner layer rich withα-FeOOH and a loose outer layer rich withγ-FeOOH,both of which have poor electrical conductivity.The rapid increase of corrosion rate in the early stage since reducible corrosion products are involved in the reduction process of the cathode which promotes the dissolution of the anodic metal substrate.Afterward,as the rust layer thickens,the resistance of the rust increases,and the aggressive ions diffusion is blocked,gradually suppressing the electrochemical corrosion process.At last,when the composition and distribution of the rust layer remain stable,the corrosion presents a fluctuating speed around a certain value during the cracking and self-repairing process of the rust layer. | Yue Wang Xin Mu Junhua Dong Aniefiok Joseph Umoh Wei Ke | 2021 | Journal of Materials Science & Technology2021，，17： | 7 |
| 8 | Effect of tin addition on corrosion behavior of a low-alloy steel in simulated costal-industrial atmosphere显示文摘The effect of tin addition on the atmospheric corrosion behavior of a low-alloy steel in sim ulated coastalindustrial atm osphere has been investigated by indoor wet/dry cyclic corrosion test (CCT). The results indicate that tin addition can obviously make the steel substrate more resistant to atmospheric corrosion by suppressing the cathodic H^+ reduction reaction, and but tin addition is not of obvious beneficial effect when the steel is covered with a thicker rust layer during long-term corrosion process. The reason lies in the fact that the presence of un-reduced H^+ can lower the electrolyte pH value and lead to a loose and porous rust layer on tin-containing steel sample than that on tin-free steel sample. In addition, the 120 CCT cycles corrosion process of the two steels can be divided into three stages. Both the tin-free and tin-containing steels show an increasing corrosion rate during the initial corrosion stage and then exhibit a decreasing corrosion rate during the second and third corrosion stages. Moreover, tin addition makes the tin-containing steel rust layer have a higher amount of α-FeOOH and lower am ount of γ-FeOOH and Fe3O4 than the tin-free steel rust layer. | Bo Liu Xin Mu Ying Yang Long Hao Xueyong Ding Junhua Dong Zhe Zhang Huaxing Hou Wei Ke | 2019 | Journal of Materials Science & Technology2019，35，7： | 6 |
| 9 | Effect of chloride ion on corrosion behavior of low carbon steel in 0.1 M NaHCO_3 solution with different dissolved oxygen concentrations显示文摘The corrosion behavior of low carbon steel in 0.1 M NaHCO_3+ 0.1 M NaCl solution with different dissolved oxygen concentrations was investigated with gravimetric tests and electrochemical measurements.Results show that the corrosion mass loss of steel is remarkably increased with the addition of chloride ion. In the initial stage, the carbon steel tends to active dissolution due to the dissolution effect of chloride ion on the oxide film; as a result, the corrosion potential maintains as low values. With the immersion time going by, the corrosion potential of the steel is promoted as a result of the accumulation of the corrosion products. However, the rust layer is loose and porous due to the deteriorating effect of chloride ion, which decreases the reduction resistance of oxygen. Meanwhile, the porous rust layer could be repaired by the depolarization of oxygen. Under the synergistic effect of chloride ion and oxygen, the corrosion of the steel is accelerated during the repeated process of dissolution and reparation of the oxide film. | Fang Xue Xin Wei Junhua Dong Changgang Wang Wei Ke | 2019 | Journal of Materials Science & Technology2019，35，4： | 5 |
| 10 | Effect of glycine addition on the in-vitro corrosion behavior of AZ31 magnesium alloy in Hank’s solution显示文摘This study reports on the effect of the addition of Glycine to Hank’s solution on the in-vitro corrosion behavior of AZ31 magnesium(Mg)alloy at 37℃and a pH of 7.4 studied by using potentiodynamic polarization(PDP),hydrogen collecting techniques and electrochemical impedance spectroscopy(EIS)in combination with surface characterization techniques such as optical microscopy(OM),scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),X-ray diffraction(XRD)and X-ray photoelectron spectroscopy analysis(XPS).The results reveal that adsorption of glycine initially subdues the dissolution of AZ31 Mg alloy while in long run it enhances the dissolution of the alloy due to the commencement of the chelation effect of glycine with Ca^(2+) released from hydroxyapatite.The chelation of glycine with Ca^(2+) induces the formation of cracks in the surface film which further promotes the dissolution of AZ31 Mg alloy thereby forming a porous corrosion products layer on the surface of the alloy.As a result,both the continuous dissolution of AZ31 magnesium alloy and the hydrogen evolution rate(HER)are enhanced with increasing the immersion time in Hank’s solution. | Durga Bhakta Pokharel Liping Wu Junhua Dong Amar Prasad Yadav Dhruba Babu Subedi Madhusudan Dhakal Lin Zha Xin Mu Aniefiok Joseph Umoh Wei Ke | 2021 | Journal of Materials Science & Technology2021，，22： | 4 |
| 11 | Electrochemical noise analysis on the pit corrosion susceptibility of biodegradable AZ31 magnesium alloy in four types of simulated body solutions显示文摘Magnesium alloys have been investigated as biodegradable implant materials since the last century. Nonuniform degradation caused by local corrosion limits their application, and no appropriate technology has been used in the research. In this study, electrochemical noise has been used to study the pit corrosion on magnesium alloy AZ31 in four types of simulated body solutions, and the data have been analyzed using wavelet analysis and stochastic theory. Combining these with the conventional polarization curves, mass loss tests and scanning electron microscopy, the electrochemical noise results implied that AZ31 alloy in normal saline has the fastest corrosion rate, a high pit initiation rate, and maximum pit growth probability.In Hanks' balanced salt solution and phosphate-buffered saline, AZ31 alloy has a high pit initiation rate and larger pit growth probability, while in simulated body fluid, AZ31 alloy has the slowest corrosion rate, lowest pit initiation rate and smallest pit growth probability. | changgang wang liping wu fang xue rongyao ma ini-ibehe nabuk etim xuehui hao junhua dong wei ke | 2018 | Journal of Materials Science & Technology2018，34，10： | 4 |
| 12 | Expansion co-planning for shale gas integration in a combined energy market显示文摘Shale gas resources have the potential to sig-nificantly contribute to worldwide energy portfolio.A great number shale gas reserves have been identified in many countries.Connections of newly found gas reserves to the existing energy infrastructures are challenging,as many stakeholders and market uncertainties are involved.The proposed co-planning approach is formulated as a mixed integer nonlinear programming problem so as to minimize investments and enhance the reliability of the overall sys-tem.We propose a reliability assessment approach that is applicable for the coupled gas and electricity networks.In addition,the IEEE 24-bus RTS and a test gas system are applied to validate the performance of our approach.Based on the simulation results,the novel expansion co-planning approach is a robust and flexible decision tool,which provides network planners with comprehensive informa-tion regarding trade-offs between cost and system reliability. | Jing QIU Zhaoyang DONG Junhua ZHAO Ke MENG Fengji LUO Yingying CHEN | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，3： | 4 |
| 13 | Effect of organic silicon quaternary ammonium salts on mitigating corrosion of reinforced steel induced by SRB in mild alkaline simulated concrete pore solution显示文摘The corrosion damage of 20 SiMn steel by sulphate-reducing bacteria(SRB)and the mitigation effect of organic silicon quaternary ammonium salt(OSA)were studied in sterilized mild alkaline simulated concrete pore solution(STR)with different additions of SRB and OSA at pH 9.35 for 28 days.Uniform corrosion occurs in STR medium while slight localized corrosion is observed in STR+OSA medium,and localized pitting corrosion occurs in STR+SRB and STR+SRB+OSA media.The largest pit depth reduces from 36.70μm in STR+SRB medium to 3.31μm in STR+SRB+OSA medium due to the mitigation effect of OSA.The corrosion rate reflected by weight loss and electrochemical impedance spectroscopy(EIS)results presents the order of STR | Ini-Ibehe Nabuk Etim Junhua Dong Jie Wei Chen Nan Durga Bhakt Pokharel Aniefiok Joseph Umoh Dake Xu Mingzhong Su Wei Ke | 2021 | Journal of Materials Science & Technology2021，，5： | 3 |
| 14 | Preparation and Characterization of High Infrared Emissivity Mn-doped NCO Spinel Composites显示文摘NiCr_2O_4(NCO)spinel composites with different Mn/Ni atomic ratios(Mn/Ni=0.05,0.10,0.15,and 0.20)were synthesized via solid state reaction method.Phase compositions and microstructure of samples were characterized by X-ray diffraction(XRD)and X-ray photoelectron spectroscopy(XPS).The TG-DSC curves showed that the appropriate baking temperature for Mn-doped NCO spinel preparation was approximately 1 320℃.X-ray diffraction patterns exhibited the formation of NCO spinel with Fd-3m space group.Valence state of the Mn ions was determined from 2p and 3s X-ray photoelectron spectra.Manganese ions were mostly in divalent and trivalent states,and the ratio of Mn^(2+)/Mn^(3+)was 0.78-0.98.Fourier transform infrared spectroscopy(FTIR)was used to analyze the spectral emissivity of Mn doped NCO spinel.It was revealed that the infrared emissivity of Mn-doped NCO spinel in 1.8-5μm could be significantly enhanced with increasing content of Mn^(2+),reaching as high as 0.9398.Mn-doped NCO spinel showed excellent radiation performance and good prospect in high emissivity applications in the temperature range of 800-1 200℃. | 邹隽 DONG Shurong GAO Junhua WANG Hongfu 程旭东 | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，6： | 3 |
| 15 | Corrosion kinetics and patina evolution of galvanized steel in a simulated coastal-industrial atmosphere显示文摘The corrosion kinetics and patina(corrosion products) layer evolution of galvanized steel submitted to wet/dry cyclic corrosion test in a simulated coastal-industrial atmosphere was investigated. The results show that zinc coating has a greater corrosion rate during the initial period and a lower corrosion rate during the subsequent period, and the patina composition and structure can greatly affect the corrosion kinetics evolution of zinc coating. Moreover, Zn5(OH)6(CO3)2 and Zn4(OH)6 SO4 are identified as the main stable composition and exhibit an increasing relative amount;while Zn12(OH)15Cl3(SO4)3 cannot stably exist and diminish in the patina layer as the corrosion develops. | Chuang Qiao Lianfeng Shen Long Hao Xin Mu Junhua Dong Wei Ke Jing Liu Bo Liu | 2019 | Journal of Materials Science & Technology2019，35，10： | 3 |
| 16 | Effect of applied potential on the microstructure, composition and corrosion resistance evolution of fluoride conversion film on AZ31 magnesium alloy显示文摘AZ31 magnesium(Mg) alloy was potentiostatic polarized in 0.1 M deaerated KF solution with pH 7.5 from-0.4 V to-1.4 V with an interval of-0.2 V. The polarization process was described by the potentiostatic current decay. The resultant film was analyzed by scanning electron microscopy(SEM), X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS) and electrochemical impedance spectroscopy(EIS). The results demonstrated that the deposited film included a Mg(OH)_2/MgF_2 containing inner layer and a Mg(OH)-2/MgF_2/KMgF_3 comprising outer layer. The high polarized potential produced high content of MgF_2 but low content of KMgF_3 and thin film. Conversely, the low polarized potential produced small content of MgF_2 but high content of KMgF_3 and thick film. The optimal corrosion resistance of the deposited film was obtained at-1.4 V, which was closely related with the content of MgF_2 and KMgF_3 and the film thickness. | Liping Wu Changgang Wang Durga Bhakta Pokharel Ini-Ibehe Nabuk Etim Lin Zhao Junhua Dong Wei Ke Nan Chen | 2018 | Journal of Materials Science & Technology2018，34，11： | 3 |
| 17 | Direct load control by distributed imperialist competitive algorithm显示文摘Demand side management techniques have drawn significant attentions along with the development of smart grid.This paper proposes a new direct load control(DLC)model for scheduling interruptible air conditioner loads.The model is coordinated with the unit commitment and economic dispatch to minimize the total operation cost over the whole dispatch horizon.The network constraints are also considered in the model.To ensure the thermal comfort of the occupants,we are among the first to incorporate the advanced two-parameter thermal inertia dynamical model of customer houses into the DLC model to calculate the indoor temperature variation.This paper also proposes a distributed imperialist competitive algorithm to effectively solve the model.The simulation studies prove the efficiency of the proposed methodology. | Fengji LUO Junhua ZHAO Haiming WANG Xiaojiao TONG Yingying CHEN Zhao Yang DONG | 2014 | Journal of Modern Power Systems and Clean Energy2014，2，4： | 3 |
| 18 | Evolution of atmospheric corrosion of MnCuP weathering steel in a simulated coastal-industrial atmosphere显示文摘 | Long Hao Sixun Zhang Junhua Dong Wei Ke | 2012 | Corrosion Science2012，，： | 2 |
| 19 | Effect of Cu on Microstructures of Manganese Steel by EDXA and SEM显示文摘以便调查分发 Cu 和 Mg ,和钢的 Cu 在微观结构的效果,分别地,包含各种各样的 Cu 内容的锰钢是退火的 at1260,1100 和 1000 °C 在 thefurnace 为 1 h 并且随后冷却了到房间温度模仿结果显示的 pre-rolling anneal.The 那 Cu 不是在观察显示出的退火的 steels.The 扫描电子显微镜学( SEM )的 microscopicallysegregated 那 themain 微观结构由铁酸盐和珠泽铁组成; | Xinhua CHEN Junhua DONG Enhou HAN Wei KE | 2007 | Journal of Materials Science & Technology2007，23，3： | 2 |
| 20 | Active fuel design A way to manage the right fuel for HCCI engines显示文摘同质的费用压缩点火(HCCI ) 引擎与汽油引擎相比展示高热的效率和 ultralow 排出物。然而, HCCI 燃烧不同于 SI 引擎,没有一个直接方法触发在里面柱体燃烧。因此,汽油 HCCI 燃烧在点火的控制正在面对挑战并且,燃烧,和运作的范围扩展。在这份报纸,一个活跃燃料设计概念被建议探索一条潜在的小径优化 HCCI 引擎燃烧并且拓宽它的运作的范围。活跃燃料设计概念被实时控制认识到双燃料(汽油和 n-heptane ) 移植注射,与用尽煤气的再通行(EGR ) 调整的率和吸入温度。在 HCCI 燃烧的 cylinderto- 柱体变化能被优化有效地在燃料注射比例减少,这被发现,并且到 HCCI 的从 SI 的快速的转变过程能被认识到。活跃燃料设计技术能显著地增加 HCCI 燃烧的适应性到增加的 EGR 率并且减少吸入温度。活跃燃料设计被显示拓宽运作的 HCCI 负担到 9.3 酒吧显示的吝啬的有效压力(IMEP ) 。当减少燃料消费和氮氧化物排出物时, HCCI 操作被多达 70% SI 模式负担使用。因此,活跃燃料设计技术能为干净引擎燃烧管理正确燃料,并且为引擎燃料多样化和未来引擎概念提供一条潜在的小径。 | Zhen HUANG Zhongzhao LI Jianyong ZHANG Xingcai LU Junhua FANG Dong HAN | 2016 | Frontiers in Energy2016，10，1： | 2 |
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