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| 1 | Latest research advances on magnesium and magnesium alloys worldwide显示文摘In the past two years,significant progresses have been achieved in high-performance cast and wrought magnesium and magnesium alloys,magnesium-based composites,advanced cast technologies,advanced processing technologies,and functional magnesium materials,such as Mg ion batteries,hydrogen storage Mg materials,bio-magnesium alloys,etc.Great contributions to the development of new magnesium alloys and their processing technologies have been made by Chongqing University,Shanghai Jiaotong University,Chinese Academy of Sciences,Helmholtz Zentrum Geesthacht,Queensland University,Brunel University,etc.This review paper is aimed to summarize the latest important advances in cast magnesium alloys,wrought magnesium alloys and functional magnesium materials worldwide in 2018–2019,including both the development of new materials and the innovation of their processing technologies.Based on the issues and challenges identified here,some future research directions are suggested,including further development of high-performance magnesium alloys having high strength and superior plasticity together with high corrosion resistance and low cost,and fundamental research on the phase diagram,diffusion,precipitation,etc.,as well as the development of advanced welding and joining technology. | Jiangfeng Song Jia She Daolun Chen Fusheng Pan | 2020 | Journal of Magnesium and Alloys2020，8，1： | 132 |
| 2 | Composition Modeling and Equivalence of an Integrated Power Generation System of Wind, Photovoltaic and Energy Storage Unit显示文摘利用间接组合建模的方法,在建立典型的双馈风机、光伏发电单元和储能单元的装置级机电暂态模型基础上,采用等值方法建立三者电站级的机电暂态模型,最终通过组合建模得到了风光储联合发电系统的机电暂态模型。在大型电力系统分析软件包的PSD-BPA暂态稳定程序中实现了风光储联合发电系统的仿真功能,通过典型算例和张北"国家风光储输示范工程"的仿真分析验证了模型的正确性,为风光储联合发电系统的并网研究提供了分析手段。 | WANG Haohuai TANG Yong HOU Junxian ZOU Jiangfeng LIANGShuang SU Feng | 2011 | 中国电机工程学报2011，31，34： | 66 |
| 3 | Entransy dissipation number and its application to heat exchanger performance evaluation显示文摘Based on the concept of the entransy which characterizes heat transfer ability, a new heat exchanger performance evaluation criterion termed the entransy dissipation number is established. Our analysis shows that the decrease of the entransy dissipation number always increases the heat exchanger effectiveness for fixed heat capacity rate ratio. Therefore, the smaller the entransy dissipation number, the better the heat exchanger performance is. The entransy dissipation number in terms of the number of exchanger heat transfer units or heat capacity rate ratio correctly exhibits the global performance of the counter-, cross-and parallel-flow heat exchangers. In comparison with the heat exchanger performance evaluation criteria based on entropy generation, the entransy dissipation number demon-strates some distinct advantages. Furthermore, the entransy dissipation number reflects the degree of irreversibility caused by flow imbalance. | GUO JiangFeng CHENG Lin XU MingTian | 2009 | Chinese Science Bulletin2009，54，15： | 58 |
| 4 | Overview of advancement and development trend on magnesium alloy显示文摘Magnesium alloys are characterized by their low density(approximately 1.8g/cm3 for magnesium alloys),high strength,large modulus of elasticity,good heat dissipation,good shock absorption,greater ability to withstand impact load than aluminum alloys,good corrosion resistance to organic matter and alkalinity.According to the statistical analysis of literature data collected by Web of Science Core Collection,it can be found that the growth rate of publications on magnesium alloy during 2008-2018 is significantly higher than the overall growth rate of alloy research papers.In the past 11 years,the Web of Science Core Collection has collected 21,440 papers on magnesium alloys,averaging nearly 2000 papers annually,of which 2768 papers were collected in 2018,an increase of 206%over 2008,accounting for more than one fifth o f the total literature on alloy research.Magnesium alloys have become an important lightweight metallic structural material and have been widely studied worldwide.As the only journal focusing on magnesium alloy research which devoted to the coverage and dissemination of global research on magnesium alloys.This article statistically analyzes all the academic articles published by Journal of Magnesium and Alloys(JMA)from 2013 to 2018 and compares them with all the articles containing magnesium alloy in their titles on the Web of Science during this period.The development trends of magnesium alloys are summarized based on these articles,and the influence and academic value of the articles published by JMA are summarized as well.This paper hopes to better realize the value of JMA,help better spread the academic research of magnesium alloys,and promote the development of global magnesium alloy research.©2019 Published by Elsevier B.V.on behalf of Chongqing University. | Tiancai Xu Yan Yang Xiaodong Peng Jiangfeng Song Fusheng Pan | 2019 | Journal of Magnesium and Alloys2019，7，3： | 56 |
| 5 | Mantle xenoliths from Late Cretaceous basalt in eastern Shandong Province: New constraint on the timing of lithospheric thinning in eastern China显示文摘The age of the alkali basalt from Daxizhuang in Jiaozhou, eastern Shandong, was determined to be 73.5±0.3 Ma by 40Ar-39Ar technique. The basalt gave high eNd(t) values of +7.5 and +7.6, suggesting that the primitive magma was derived from depleted asthenospheric mantle with a formation depth of about 65—95 km. Spinel-lherzolite xenoliths have been discovered in the basalt. The Fo values of olivine from the xenoliths range from 88 to 89. The estimated equilibrium P-T conditions of spinel-lherzolite xenoliths are about 2.0 GPa and 1010—1140℃, suggesting an equilibrium depth of about 65 km. Geochemical characteristics of the Late Mesozoic (125—115 Ma) mantle-derived rocks in Shandong Province suggest an enriched lithospheric mantle along the southern margin of the North China block. However, geochemical characteristics of the Late Cretaceous basalts in Daxizhuang and the equilibrium P-T condition estimated from the xenoliths suggest that the lithosphere at 73 Ma ago was as thick as that of the Cenozoic in the region. Additionally, the xenoliths are rich in basaltic-component, suggesting a derivation from a newly-formed lithosphere. Therefor, lithospheric thinning took place at a time interval between about 120 and 73 Ma along the southern margin of the North China block. | YAN Jun, CHEN Jiangfeng, XIE Zhi & ZHOU Taixi School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China | 2003 | Chinese Science Bulletin2003，48，19： | 59 |
| 6 | Principle of equipartition of entransy dissipation for heat exchanger design显示文摘In the present work,a principle of equipartition of entransy dissipation(EoED) for heat exchanger design is established,which says that for a heat exchanger design with given heat duty and heat transfer area,the total entransy dissipation rate reaches the minimum when the local entransy dissipation rate is uniformly distributed along the heat exchanger.When the heat transfer coefficient is unfixed,the total entransy dissipation obtained by the EoED principle is less than that obtained by the principle of equipartition of temperature difference(EoTD).Furthermore,the exchanger effectiveness obtained by the EoED principle is larger than that obtained by the EoTD principle.When the heat transfer coefficient is fixed,the EoED principle is equivalent to the EoTD principle.We show that the equipartition of entropy production(EoEP) and EoED principles give rise to difference in entropy generation and entransy dissipation for a heat exchanger optimization design.The discrepancies are caused by distinct features of entropy production minimization and entransy dissipation minimization principles,the former is to optimize the design of heat exchanger by making the lost available work minimum,while the latter is not involved with heat-work conversion.It is found that the entropy generation number is not suitable for evaluating heat exchanger performance,since it directly depends on the inlet and outlet temperatures of working fluids.On the contrary,the entransy dissipation number is not directly related to the inlet and outlet temperatures of working fluids.Therefore,the entransy dissipation number is more suitable for serving as a criterion to evaluate heat exchanger performance. | GUO JiangFeng,XU MingTian & CHENG Lin Institute of Thermal Science and Technology,Shandong University,Jinan 250061,China | 2010 | Science China(Technological Sciences)2010，53，5： | 46 |
| 7 | Reconstruction of May——July precipitation in the north Helan Mountain, Inner Mongolia since A.D. 1726 from tree-ring late-wood widths显示文摘By analyzing statistical characteristics of five tree-ring standard chronologies, early-wood ring width (EWW), late-wood ring width (LWW), total ring width (TRW), minimum early-wood density (MinD), maximum late-wood density (MaxD) and, their climatic response re-spectively, we reconstructed the May to July precipitation using late-wood ring width (LWW) over the north Helan Mountain since A.D. 1726. The explained variance is 42% (R2adj = 41%, F = 31.46, p < 0.000001). After 11-a moving average, the explained variance reaches 82% (F = 156.9, p < 0.05). On the decadal scale, the rainfall reconstruction of the northern Helan Mountain displays a quite similar variation pattern with that of the April to early July precipitation in Baiyinaobao, east of Inner Mongolia for the last 150 years. It may reflect the intensity variation of the East Asia Summer Monsoon front to a certain extent. Spectrum analysis shows 11-a and 22-a periodicities in the May to July precipitation reconstruction at the north Helan Mountain. | LIU Yu SHI Jiangfeng V. Shishov E. Vaganov YANG Yinke CAI Qiufang SUN Junyan WANG Lei I. Djanseitov | 2004 | Chinese Science Bulletin2004，49，4： | 29 |
| 8 | Zircon LA-ICP MS U-Pb Age,Sr-Nd-Pb Isotopic Compositions and Geochemistry of the Triassic Post-collisional Wulong Adakitic Granodiorite in the South Qinling,Central China,and Its Petrogenesis显示文摘摘要:Indosinian post-collisional Wulong pluton 侵入了进 Mesoproterozoic Fuping 组,南方 Qinling,华中。在 pluton 的南部的部分,一些 mafic 被外国领地包围的土地与主人黑云母 granodiorite 有锋利或有等级的接触关系。地球化学,锆石 LA-ICP MS (激光脱离诱导地联合的血浆团 spectrometry ) pluton 的 U-Pb 年表和 Sr-Nd-Pb 同位素地球化学在这份报纸被报导。黑云母 granodiorite 表演关上组合类似到高硅石的 adakite。它的使球粒状陨石正常化的 REE 模式被强壮的 HREE 弄空描绘(Yb = 0.33-0.96 10 ? 6 并且 Y = 4.77-11.19 预定 10 ? 6 ) , Ba 的丰富(7751386 times10 ? 6 ) 并且 Sr (6431115 ?? | QIN Jiangfeng LAI Shaocong WANG Juan LI Yongfei | 2008 | Acta Geologica Sinica(English Edition)2008，82，2： | 21 |
| 9 | Atmospheric lead pollution in fine particulate matter in Shanghai, China显示文摘The Pb-monitoring program was extended for 6 years from 2002 to 2007 at 17 representative urban sites (6 traffic, 5 industrial, and 6 residential sites), and 3 suburban sites to assess the lead pollution in fine particulate matter (PM2.5) after phasing out leaded gasoline in Shanghai. Compared with Pb levels reported in other places, the Pb pollution in Shanghai is still serious after phasing out leaded gasoline, which remains at high concentration range (213–176 ng/m3) in PM2.5 in winter. Significant spatial variation of Pb concentrations and strong seasonal variation of higher Pb concentration in winter than that in summer were detected. The size distribution of Pb in particulate matter has a unimodal mode that peaks at approximately 0.154–1.59 μm particle diameter, indicating that Pb is mainly concentrated in fine fraction. Lead in the fine fraction is enriched by a factor of 103–104 relative to Pb abundance in crust. Eight categories of Pb pollution sources were identified in the PM2.5 in the winter of 2007 in Shanghai. The important emission sources among them are vehicle exhaust derived from combustion of unleaded gasoline, metallurgic industry emission, and coal combustion emission. | LI Xiaolin ZHANG Yuanxun TAN Mingguang LIU Jiangfeng BAO Liangman ZHANG Guilin LI Yan IIDA Atsuo | 2009 | Journal of Environmental Sciences2009，21，8： | 20 |
| 10 | Research advances of magnesium and magnesium alloys worldwide in 2021显示文摘More than 4000 papers in the field of Mg and Mg alloys were published and indexed in Web of Science(WoS)Core Collection database in 2021.The bibliometric analyses indicate that the microstructure,mechanical properties,and corrosion of Mg alloys still are the main research focus.Mg ion batteries and hydrogen storage Mg materials have attracted much attention.Significant contributions to the research and development of magnesium alloys were made by Chongqing University,Shanghai Jiaotong University,and Chinese Academy of Sciences in China,Helmholtz Zentrum Hereon in Germany,Ohio State University in the United States,the University of Queensland in Australia,Kumanto University in Japan,and Seoul National University in Korea,University of Tehran in Iran,etc..This review is aimed to summarize the progress in the development of structural and functional Mg and Mg alloys in 2021.Based on the issues and challenges identified here,some future research directions are suggested. | Jiangfeng Song Jing Chen Xiaoming Xiong Xiaodong Peng Daolun Chen Fusheng Pan | 2022 | Journal of Magnesium and Alloys2022，10，4： | 16 |
| 11 | Entransy dissipation minimization for optimization of heat exchanger design显示文摘In this paper,by taking the water-water balanced counterflow heat exchanger as an example,the entransy dissipation theory is applied to optimizing the design of heat exchangers.Under certain conditions,the optimal duct aspect ratio is determined analytically.When the heat transfer area or the duct volume is fixed,analytical expressions of the optimal mass velocity and the minimal entransy dissipation rate are obtained.These results show that to reduce the irreversible dissipation in heat exchangers,the heat exchange area should be enlarged as much as possible,while the mass velocity should be reduced as low as possible. | LI XueFang GUO JiangFeng XU MingTian CHENG Lin | 2011 | Chinese Science Bulletin2011，56，20： | 16 |
| 12 | Geochemistry and LA-ICP-MS zircon U-Pb dating of the Dongjiahe ophiolite complex from the western Bikou terrane显示文摘The Dongjiahe ophiolite complex occurring in the western Bikou terrane that is composed chiefly of serpentinite, listwanitizational peridotite, gabbro, cumulus gabbro, and sub-alkaline meta-basalt, possesses a rock association of typical ophiolite sequence. The metaperidotite is depleted in light rare earth element (LREE), whereas the gabbro and meta-basalt from the studied ophiolite sequence, generated by the same parental magmas those have close affinity to the MORB (Mid-ocean ridge basalt), their REE and immobile elements patterns imply an ocean in the northern margin of the Yangtze plate during the Neoproterozoic period. The zircon LA-ICP-MS U-Pb dating for the gabbro yields a weighted mean age of 839.2±8.2Ma, suggesting that the basin occurred during the Neoproterozoic period. | LAI ShaoCong LI YongFei QIN JiangFeng | 2007 | Science China Earth Sciences2007，50，z2： | 14 |
| 13 | Effect of heat treatment on LPSO morphology and mechanical properties of Mg-Zn-Y-Gd alloys显示文摘The mechanical properties and microstructure were investigated under different Zn content and heat treatment conditions in a Mg-Zn-YGd cast alloy.A part of the long period stacking order(LPSO)phases transformed to W-M^ZnaRE?phases with an increase in Zn content from 0.9 at.%to 1.8 at.%,and the ultimate tensile strength(UTS)increased from 229 MPa to 248 MPa.With solution treatment at 480°C,the content of the LPSO phase and strength sharply decreased in the Mg-1.8Zn-0.8Y-0.8Gd alloy,whereas this change was not significantly observed in the Mg-0.9Zn-O.8Y-O.8Gd alloy.After solution treatment,the elongation significantly improved and the UTS sharply decreased in both alloys.The lamellar and filminess LPSO phases were observed with aging treatment at 200℃.Moreover,the strengthening efficiency of lamellar and filminess LPSO phases was lower than that of the block LPSO phases.Therefore,the UTS of the T6 state was lower than that of the as-cast alloy. | Hongxin Liao Jonghyun Kim Taekyung Lee Jiangfeng Song Jian Peng Bin Jiang Fusheng Pan | 2020 | Journal of Magnesium and Alloys2020，8，4： | 14 |
| 14 | Application of a Bayesian method to data-poor stock assessment by using Indian Ocean albacore (Thunnus alalunga) stock assessment as an example显示文摘It is widely recognized that assessments of the status of data-poor fish stocks are challenging and that Bayesian analysis is one of the methods which can be used to improve the reliability of stock assessments in data-poor situations through borrowing strength from prior information deduced from species with good-quality data or other known information. Because there is considerable uncertainty remaining in the stock assessment of albacore tuna(Thunnus alalunga) in the Indian Ocean due to the limited and low-quality data, we investigate the advantages of a Bayesian method in data-poor stock assessment by using Indian Ocean albacore stock assessment as an example. Eight Bayesian biomass dynamics models with different prior assumptions and catch data series were developed to assess the stock. The results show(1) the rationality of choice of catch data series and assumption of parameters could be enhanced by analyzing the posterior distribution of the parameters;(2) the reliability of the stock assessment could be improved by using demographic methods to construct a prior for the intrinsic rate of increase(r). Because we can make use of more information to improve the rationality of parameter estimation and the reliability of the stock assessment compared with traditional statistical methods by incorporating any available knowledge into the informative priors and analyzing the posterior distribution based on Bayesian framework in data-poor situations, we suggest that the Bayesian method should be an alternative method to be applied in data-poor species stock assessment, such as Indian Ocean albacore. | GUAN Wenjiang TANG Lin ZHU Jiangfeng TIAN Siquan XU Liuxiong | 2016 | Acta Oceanologica Sinica2016，35，2： | 13 |
| 15 | Re-Os dating of gold-bearing arsenopyrite of the Maoling gold deposit,Liaoning Province,Northeast China and its geological significance显示文摘The Maoling gold deposit, one of the large gold deposits in eastern Liaoning Province, NE China, is an ar- senopyrite-disseminated gold deposit with a resource of ap- proximately 25 t Au and an average Au grade of 3.2 g/t. Six arsenopyrites closely related to Au mineralization of the Maoling gold deposit are dated by Re-Os technique and de- fine a Re-Os isochron with an age of 2316±140 Ma, which suggests that the deposit was formed in the Paleoproterozoic era rather than in the Indosinian period as some early re- searchers suggested. High initial 187Os/188Os ratio of 1.32±0.48 indicates a crustal derivation of the ore-forming material of the deposit, which may be derived from rocks of the Gaixian formation of the Liaohe Group. Furthermore, the result also implies that the age of the Gaixian Formation in the Maoling district is older than 2316±140 Ma. | YU Gang YANG Gang CHEN Jiangfeng QU Wenjun DU Andao HE Wei | 2005 | Chinese Science Bulletin2005，50，14： | 12 |
| 16 | Zircon U-Pb age of the Shacun gabbro body, Yuexi, Dabie orogen and its geological implications显示文摘The single grain zircon U-Pb age of the Shacun mafic-ultramafic intrusion, Yuexi, North Dabie is (128.1 ±2.0) Ma.This date indicates that the intrusion was implaced at Yanshanian when most Mesozoic granitoids were intruded. It was not the syn-collisional intrusion related to the subduction of the Yangtze Block and ultrahigh-pressure metamorphism at Indosinian. | GE Ningjie HOU Zhenhui LI Huimin CHEN Jiangfeng LIU Bin RUAN Jun QIN Liping | 2000 | Chinese Science Bulletin2000，45，1： | 12 |
| 17 | A review on hot tearing of magnesium alloys显示文摘Hot tearing is often a major casting defect in magnesium alloys and has a significant impact on the quality of their casting products.Hot tearing of magnesium alloys is a complex solidification phenomenon which is still not fully understood,it is of great importance to investigate the hot tearing behaviour of magnesium alloys.This review attempts to summarize the investigations on hot tearing of magnesium alloys over the past decades.The hot tearing criteria including recently developed Kou’s criterion are summarized and compared.The numeric simulation and assessing methods of hot tearing,factors influencing hot tearing,and hot tearing susceptibility(HTS)of magnesium alloys are discussed. | Jiangfeng Song Fusheng Pan Bin Jiang Andrej Atrens Ming-Xing Zhang Yun Lu | 2016 | Journal of Magnesium and Alloys2016，4，3： | 12 |
| 18 | Stability analysis of liver cancer-related microRNAs显示文摘MicroRNAs (miRNAs ) 是非编码的, 22 nt 的搁浅单人赛的 RNA 并且组成在植物和动物被发现的基因管理者的一个新奇的班。几研究证明了浆液 miRNAs 能为各种各样的癌症和另外的疾病的察觉用作潜在的 biomarkers。关于肝的稳定性的一些文件在浆液的癌症相关的 miRNAs 是可得到的。在浆液的 miRNA 的稳定性的全身的分析是相当必要的。这研究的目的是在不同试验性的条件下面从三不同来源,有教养的肝癌症 Huh-7 房间行,临床的肝癌症,和浆液评估 miRNAs 的稳定性,包括不同温度,时间持续时间, pH 价值, RNase A 消化, DNase 我消化,并且各种各样的 freezethaw 骑车。qRT-PCR 分析表明了癌症相关的 miRNAs 是的那个肝在每测试条件下面可检测,显示 miRNAs 在严厉环境条件下面对破坏和降级极其稳定、抵抗。然而, ribosomal RNA 由在非生理的测试条件下面表明相对表示的锋利的减少易碎、容易降级。我们也极大地为浆液 RNA 抽取建立了一个柔韧的过程,它是不仅为介绍研究的 miRNA 而且为疾病预后重要基于反常 miRNA 表示。 | Yan Li Zhenggang Jiang Lijian Xu Hu Yao Jiangfeng Guo Xianfeng Ding | 2011 | Acta Biochimica et Biophysica Sinica2011，43，1： | 12 |
| 19 | The influence of viscous heating on the entransy in two-fluid heat exchangers显示文摘In the present work, water and olive oil are taken as working fluids to study the influence of viscous heating on the entransy dissipation caused by heat transfer in two-fluid heat exchangers. The results show that the influence of viscous heating on the entransy loss associated with heat transfer can not be neglected for the liquids having large dynamic viscosity. The viscous heating effect maintains the heat transfer ability of the working fluids, relatively reduces the entransy loss in heat exchangers; the viscous heating effect relatively augments the entropy generation due to heat transfer and the available energy destruction in heat exchangers. For the working fluid having large dynamic viscosity, the increasing rates of the entransy and entropy generation contributed by the viscous heating are even larger than those contributed by heat transfer, when the mass flow rate of working fluid reaches a certain value under the fixed heat transfer area condition. Thus, the entransy loss rate decreases and the growth rate of entropy generation increases as the mass flow rate of the working fluid increases. Under the same other conditions, the heat transfer entransy loss rate and entropy generation rate per unit heat transfer rate obtained when the fluid having a smaller heat capacity rate is cold fluid are less than those obtained when the fluid having a smaller heat capacity rate is hot fluid. | GUO JiangFeng XU MingTian CHENG Lin | 2011 | Science China(Technological Sciences)2011，54，5： | 11 |
| 20 | Carbon nanotube-based electrodes for flexible supercapacitors显示文摘Flexible supercapacitors(SCs)have attracted increasing attention as the power supply unit for portable/wearable electronics.Carbon nanotubes(CNTs)are promising candidate materials for flexible SC electrodes because of their outstanding mechanical property,high electrical conductity,large surface area,and functionability.CNTs can assemble into various macroscopic materials with different dimensions.In this review,flexible CNT assemblies including 1D fibers,2D films,and 3D aerogels and sponges are introduced with a focus on the design strategies and fabrication techniques.The recent developments and state-of-the-art applications of such structures as electrodes in flexible SCs are summarized based on device configurations including sandwiched,interdigital in-plane,and cable-type configurations.The flexible CNT-based electrodes have shown great advantages in bendability,stretchability and/or compresisbility,as well as a long cycle lifetime.The current challenges and future research opportunities in this field are also discussed. | Sheng Zhu Jiangfeng Ni Yan Li | 2020 | Nano Research2020，13，7： | 11 |
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