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| 1 | New generation of multi-scale NWP system (GRAPES):general scientific design显示文摘A new generation of numerical prediction system GRAPES (a short form of Global/Regional Assimilation and PrEdiction System) was set up in China Meteorological Administration (CMA). This paper focuses on the scientific design and preliminary results of the numerical prediction model in GRAPES, including basic idea and strategy of the general scientific design, multi-scale dynamic core, physical package configuration, architecture and parallelization of the codes. A series of numerical experiments using the real data with horizontal resolutions from 10 to 280 km and idealized experiments with very high resolution up to 100 m are conducted, giving encouraging results supporting the multi-scale application of GRAPES. The results of operational implementation of GRAPES model in some NWP centers are also presented with stress at evaluations of the capability to predict the main features of precipitation in China. Finally the issues to be dealt with for further development are discussed. | CHEN DeHui XUE JiShan YANG XueSheng ZHANG HongLiang SHEN XueShun HU JiangLin WANG Yu JI LiRen CHEN JiaBin | 2008 | Chinese Science Bulletin2008，53，22： | 70 |
| 2 | Scientific design and preliminary results of three-dimensional variational data assimilation system of GRAPES显示文摘The scientific design and preliminary results of the data assimilation component of the Global-Regional Prediction and Assimilation System (GRAPES) recently developed in China Meteorological Administration (CMA) are presented in this paper. This is a three-dimensional variational (3DVar) assimilation system set up on global and regional grid meshes favorable for direct assimilation of the space-based remote sensing data and matching the frame work of the prediction model GRAPES. The state variables are assumed to decompose balanced and unbalanced components. By introducing a simple transformation from the state variables to the control variables with a recursive or spectral filter, the convergence rate of iteration for minimization of the cost function in 3DVar is greatly accelerated. The definition of dynamical balance depends on the characteristic scale of the circulation considered. The ratio of the balanced to the unbalanced parts is controlled by the prescribed statistics of background errors. Idealized trials produce the same results as the analytic solution. The results of real data case studies show the capability of the system to improve analysis compared to the traditional schemes. Finally, further development of the system is discussed. | XUE JiShan ZHUANG ShiYu ZHU GuoFu ZHANG Hua LIU ZhiQuan LIU Yan ZHUANG ZhaoRong | 2008 | Chinese Science Bulletin2008，53，22： | 33 |
| 3 | Direct assimilation of satellite radiance data in GRAPES variational assimilation system显示文摘Variational method is capable of dealing with observations that have a complicated nonlinear relation with model variables representative of the atmospheric state, and so make it possible to directly assimilate such measured variables as satellite radiance, which have a nonlinear relation with the model variables. Assimilation of any type of observations requires a corresponding observation operator, which establishes a specific mapping from the space of the model state to the space of observation. This paper presents in detail how the direct assimilation of real satellite radiance data is implemented in the GRAPES-3DVar analysis system. It focuses on all the components of the observation operator for direct assimilation of real satellite radiance data, including a spatial interpolation operator that transforms variables from model grid points to observation locations, a physical transformation from model variables to observed elements with different choices of model variables, and a data quality control. Assimilation experiments, using satellite radiances such as NOAA17 AMSU-A and AMSU-B (Advanced Microwave Sounding Unit), are carried out with two different schemes. The results from these experiments can be physically understood and clearly reflect a rational effect of direct assimilation of satellite radiance data in GRAPES-3DVar analysis system. | ZHU GuoFu XUE JiShan ZHANG Hua LIU ZhiQuan ZHUANG ShiYu HUANG LiPing DONG PeiMing | 2008 | Chinese Science Bulletin2008，53，22： | 11 |
| 4 | The program structure designing and optimizing tests of GRAPES physics显示文摘According to the modularization and standardization of program structure in Global/Regional Assimilation and Prediction System (GRAPES), the plug-compatible and transplantable regional meso-scale and global middle-range physics software package is established. The package's component integrality is comparative with the other advanced models physics. A three-level structure of connecting GRAPES physics and dynamic frame has been constructed. The friendly interface is designed for users to plug in their own physics packages. Phenomenon of grid-point storm rainfall in numerical prediction is analyzed with the numerical tests. The scheme of air vertical velocity calculation is improved. Optimizing tests of physics schemes are performed with the correlative parameters adjusting. The results show that the false grid-point storm rainfall is removed by precipitation scheme improving. Then the score of precipitation forecast is enhanced. | XU GuoQiang CHEN DeHui XUE JiShan SUN Jian SHEN XueShun SHEN YuanFang HUANG LiPing WU XiangJun ZHANG HongLiang WANG ShiYu | 2008 | Chinese Science Bulletin2008，53，22： | 11 |
| 5 | Improvement of the Surface Pressure Operator in GRAPES and Its Application in Precipitation Forecasting in South China显示文摘在这研究,我们调查了涉及在当前的全球、地区性的吸收和预言系统吸收表面压力的问题,葡萄。吸收表面压力的一个新计划被建议,包括一个新插值计划和使清醒的背景协变性。新计划考虑车站举起和模型地形学之间的差别,并且它特别处理在第一模型水平的下面在举起定位的车站。对比实验用原版和新吸收计划被进行。新插值计划和更新的背景协变性的影响被调查。我们的结果证明新插值计划利用了更多的观察并且改进了集体分析的质量。背景协变性用源于帕里什和 Derber 在 1992 建议的技术的统计被使清醒。当吸收表面压力时,实验证明更新的垂直协变性可以在空气的高水平在分析上有积极影响。如果在高水平的背景地的质量是差的,这影响可能是更重要的。一系列吸收实验被执行测试新计划的有效性。相应模拟实验作为起始的条件用两个计划的分析被进行。结果显示新计划导致在华南的海水平压力和降水的更好的预报,特别预报中等并且大雨。 | HUANG Yanyan XUE Jishan WAN Qilin CHEN Zitong DING Weiyu ZHANG Chengzhong | 2013 | Advances in Atmospheric Sciences2013，30，2： | 10 |
| 6 | A new-generation sand and dust storm forecasting system GRAPES_CUACE/Dust:Model development,verification and numerical simulation显示文摘Based on the new-generation Global/Regional Assimilation and PrEdiction System(GRAPES) developed by the Numerical Prediction Research Center,China Meteorological Administration and the Chinese Unified Atmospheric Chemistry Environment for Dust Atmospheric Chemistry Module(CUACE/Dust) developed by the Centre for Atmosphere Watch and Services(CAWAS) of the Chinese Academy of Meteorological Sciences(CAMS) ,the China sand and dust storm forecasting system GRAPES /CUACE-Dust model has been established.The latest data of land desertification,optical properties of China sand and dust aerosols,daily soil moisture and snow cover over China main land was introduced in this system.The system showed good performance in mass conservation.The comparisons of real-time prediction outputs with surface observations and aerosol indices derived from TOMS ozone spectrophotometers(TOMS AI) indicate that the model can predict the outbreak,development,transport and depletion processes of sand and dust storms accurately over China and the East Asian region.The system makes real-time quantitative prediction of a series of elements including sand and dust injection from the surface,dry and wet deposition amount,dust concentration and optical depth.We selected 7 major dust storms occurring in April 2006 and analyzed the spatiotemporal distribution patterns of dust emission,dry and wet deposition and atmospheric load in this paper.The results showed that about 225 million tons of dust were emitted into the atmosphere from the deserts over east Asia in that month.The 3 major sand and dust sources were just as the following:The deserts in northern Inner Mongolia and the boundary area around China-Mongolia were the first dust sources with a contribution of 153 million tons accounting for 68%of the total emission.The Taklimakan Desert ranked second and contributed approximately 40 million tons accounting for 17%of the dust emission.The Onqin Daga Sandland emitted about 15 million tons or 7%of the total emission.The contributions from other deserts,sandy lands and abandoned farmlands were about only 8%of the total dust emission.The total deposition over the East Asian region in April 2006 was 136 million tons.The regional distribution of dust deposition showed that the 3 major sources were also the major deposition areas.The deposition amount in the 3 major sources accounted for 78%of the total with about 135 million tons falling back to the source regions.The secondary deposition area was the China mainland downriver,where more than 2 million tons deposited accounting for 16%of the total deposition.The deposition over the region east of 120°E including China off-shore regions,Korean Peninsula,Japan and the West Pacific took only 6%of the total deposition,which was about 850000 tons.The analysis on dry and wet deposition showed that dry deposition dominated in the process,accounting for 94%of the total sand and dust depositions in the period and wet deposition only was around for 6%,since it was generally dry with less rainfall over northern China in April. | WANG Hong GONG ShanLing ZHANG HongLiang CHEN Yong SHEN XueShun CHEN DeHui XUE JiShan SHEN YuanFang WU XiangJun JIN ZhiYan | 2010 | Chinese Science Bulletin2010，55，7： | 10 |
| 7 | Advanced cold spray technology:Deposition characteristics and potential applications显示文摘Cold spray technology,originated from the Institute of Theoretical and Applied Mechanics Siberian branch of the Russian Academy of Sciences,is a rapidly emerging industrial coating technology.Cold sprayed particles with high-velocity impact onto a substrate so as to induce severe plastic deformation and then create a deposit.For its low temperature and high velocity compared with thermal spraying,the cold spraying process is increasingly used in the industries for protective coating.The deposition characteristics of the particles,coating formation and bonding mechanism of the cold spraying process are different from thermal spraying.Many theory investigations of the cold spraying process contribute to the development of the high performance coatings,which makes the cold spraying process as a popular research field.Presently,the deposition characteristics,bonding mechanism,process optimization as well as classical applications of the cold spraying technology in the past are reviewed,and the interesting points for the further development,optimization and applications of this technology are also recommended. | WU XiangKun ZHANG JiShan ZHOU XiangLin CUI Hua LIU JingChun | 2012 | Science China(Technological Sciences)2012，55，2： | 5 |
| 8 | Controlling effects of differential swelling index on evolution of coal permeability显示文摘Coal permeability measurements are normally conducted under the assumption that gas pressure in the matrix is equalized with that in fracture and that gas sorption-induced swelling/shrinking strain is uniformly distributed within the coal.However,the validity of this assumption has long been questioned and differential strain between the fracture strain and the bulk strain has long been considered as the primary reason for the inconsistency between experimental data and poroelasticity solutions.Although efforts have been made to incorporate the impact into coal permeability models,the fundamental nature of those efforts to split the matrix strain between fracture and coal bulk remains questionable.In this study,a new concept of differential swelling index(DSI)was derived to theoretically define the relation among sorption-induced strains of the coal bulk,fracture,and coal matrix at the equilibrium state.DSI was a function of the equilibrium pressure and its magnitudes were regulated by the Langmuir constants of both the matrix and the coal bulk.Furthermore,a spectrum of DSI-based coal permeability models was developed to explicitly consider the effect of differential strains.These models were verified with the experimental data under the conditions of uniaxial strain,constant confining pressure,and constant effective stress. | Chuanzhong Jiang Zhenfeng Zhao Xiwei Zhang Jishan Liu Derek Elsworth Guanglei Cui | 2020 | Journal of Rock Mechanics and Geotechnical Engineering2020，12，3： | 5 |
| 9 | Characterization of microstructure evolution and mechanical properties of the spray-deposited AZ31 magnesium alloy显示文摘The cylindrical billets of a Mg-3Al-1Zn (AZ31) alloy were synthesized by spray deposition processing. The microstruc-ture evolution and mechanical properties of the alloy were investigated. The results reveal that the microstructure of the AZ31 alloy is refined significantly by spray deposition processing. A homogeneous and equiaxial-grain structure with an average grain size of 17 μm is obtained. Further grain refinement with an average grain size of 5 μm is attributed to dynamic recrystallization during extru-sion processing. The great increase in the density of grain boundary nucleation sites by the finer initial grain sizes makes the disloca-tion pile-ups near subgrain boundaries being absorbed easily by the boundaries, resulting in an accelerated recrystallization process. The average tensile ultimate and yield strengths of the extruded rods are 321 MPa and 237 MPa, respectively, with an elongation of 15.2% at room temperature, which are remarkably higher than those of the conventional as-cast AZ31 alloy. | Yongbing Li Jinfeng Huang Hua Cui kai Tao Kui Zhang Jishan Zhang | 2008 | Journal of University of Science and Technology Beijing2008，15，6： | 4 |
| 10 | Bulk nanocrystalline Al prepared by cryomilling显示文摘Bulk nanocrystalline Al was fabricated by mechanically milling at cryogenic temperature (cryomilling) and then by hot pressing in vacuum. By using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), the microstructure evolution of the material during cryomilling and consolidation was investigated. With increasing the mill- ing time, the grain size decreased sharply and reduced to 42 nm when cryomilled for 12 h. The grains had grown up, and the colum- nar grain was formed under the hot pressing and extrusion compared with the cryomilled powders. The grain size of as-extruded specimen was approximately 300-500 nm. The reason of high thermal stability of this bulk was attributed primarily to the Zener pin- ning from the grain boundary of the AlN arising from cryomilling and the solute drag of the impurity. Tensile tests show that the strength of nanocrystalline Al is enhanced with decreasing grain size. The ultimate tensile strength and tensile elongation were 173 MPa and 17.5%, respectively. It appears that the measured high strength in the cryomilled Al is related to a grain-size effect, disper- sion strengthening, and dislocation strengthening. | Junsheng Cheng Hua Cui Hanbin Chen Bin Yang Jianzhong Fan Jishan Zhang | 2007 | Journal of University of Science and Technology Beijing2007，14，6： | 3 |
| 11 | Thermal stability of nanostructured NiCrC coating prepared by HVAF spraying of cryomilled powders显示文摘Thermal stability of nanostructured NiCrC coating prepared by high velocity air-fuel (HVAF) spraying of cryomilled feedstock powders was investigated. Transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and X-ray diffraction (XRD) were utilized for characteristic analysis. Recrystallization and normal grain growth occur when isothermal treatment is performed at 923 K (0.55 TM) for up to 100 h, and the average grain size increases from initial 41 nm for as-deposited state to around 100 nm for nearly equilibrium state. Iso-chronal treatment at 823 K and 1023 K was also conducted for comparison. Accordingly, for 0.49 to 0.61 T/TM, the time exponent n deduced from D 1/n-D 1/n 0= ktincreases from 0.15 to 0.30. The observed high thermal stability is attributed primarily to a Zener pinning mechanism arising from the fine Cr2O3 dispersions and the solute drag effect as well. | CUI Hua TAO Kai ZHOU Xianglin ZHANG Jishan | 2008 | Rare Metals2008，27，4： | 3 |
| 12 | Effect of Ti/B Additions on the Formation of Al_3 Ti of in situ TiB_2/Al Composites显示文摘ParticulatereinforcedMetalMatrixComposites(MMCs)showgreatpotentialforstrUctUralmaterialsduetotheirpromisingspecificstrengthandmodlllus.AmongthenumeroustechnologiesproducingparticulatereinforcedMMCs,thoseallowinginsituproductionofthereinforcementoffer... | Bin Yang Jishan Zhang Xianjin Duan Shuangchun Hu(State Key Laboratory for Advanced Metals and Materials, University of Science and ’Techno1ogy Beijing, Beding 100083, China) | 1999 | International Journal of Minerals,Metallurgy and Materials1999，13，4： | 3 |
| 13 | Current-driving intergranular corrosion performance regeneration below the precipitates solvus temperature in Al–Mg alloy显示文摘Heat treatment is an effective method to improve the intergranular corrosion resistance of the sensitized Al–Mg alloy due to dissolution of the grain boundary precipitates above the solvus temperature ofβ-phase.The grain boundary precipitates will grow and coarsening below the solvus temperature.In this study,the in-situ intergranular corrosion performance regeneration of the sensitized Al–Mg alloy can be realized by low-density electro-pulsing treatment below the solvus temperature ofβ-phase.Our findings show that the dissolution of grain boundary precipitates by electro-pulsing treatment is accelerated at relatively low temperature in comparison to traditional heat treatment.The athermal effect produced by the interaction between atoms and electrons on the dissolution of grain boundary precipitates is the main reason for the improved corrosion resistance below the solvus temperature ofβ-phase. | Di Zhang Zhen Zhang Yanlin Pan Yanbin Jiang Linzhong Zhuang Jishan Zhang Xinfang Zhang | 2020 | Journal of Materials Science & Technology2020，52，18： | 3 |
| 14 | Papaya CpbHLH1/2 regulate carotenoid biosynthesis-related genes during papaya fruit ripening显示文摘The ripening of papaya is a physiological and metabolic process associated with accumulation of carotenoids,alternation of flesh color and flavor,which depending on genotype and external factors such as light and hormone.Transcription factors regulating carotenoid biosynthesis have not been analyzed during papaya fruit ripening.RNA-Seq experiments were implemented using different ripening stages of papaya fruit from two papaya varieties.Cis-elements in lycopeneβ-cyclase genes(CpCYC-B and CpLCY-B)were identified,and followed by genome-wide analysis to identify transcription factors binding to these cis-elements,resulting in the identification of CpbHLH1 and CpbHLH2,two bHLH genes.The expressions of CpbHLH1/2 were changed during fruit development,coupled with transcript increase of carotenoid biosynthesis-related genes including CpCYC-B,CpLCY-B,CpPDS2,CpZDS,CpLCY-E,and CpCHY-B.Yeast onehybrid(Y1H)and transient expression assay revealed that CpbHLH1/2 could bind to the promoters of CpCYC-B and CpLCY-B,and regulate their transcriptions.In response to strong light,the results of elevated expression of carotenoid biosynthesis-related genes and the changed expression of CpbHLH1/2 indicated that CpbHLH1/2 were involved in light-mediated mechanisms of regulating critical genes in the carotenoid biosynthesis pathway.Collectively,our findings demonstrated several TF family members participating in the regulation of carotenoid genes and proved that CpbHLH1 and CpbHLH2 individually regulated the transcription of lycopeneβ-cyclase genes(CpCYC-B and CpLCY-B).This study yielded novel findings on regulatory mechanism of carotenoid biosynthesis during papaya fruit ripening. | Dong Zhou Yanhong Shen Ping Zhou Mahpara Fatima Jishan Lin Jingjing Yue Xingtan Zhang Li-Yu Chen Ray Ming | 2019 | Horticulture Research2019，6，1： | 3 |
| 15 | Hot deformation behavior of a spray-deposited AZ31 magnesium alloy显示文摘The flow stress behavior of an as-spray-deposited AZ31 magnesium alloy with fine grains was investigated by means of compression tests with a Gleeble 1500 thermal mechanical simulator at isothermal constant strain rates of 0.01, 0.1, 1.0, and 10 s-1; the testing temperatures ranged from 623 to 723 K. It is demonstrated that a linear equation can be fitted between the Zemer-Hollomon parameter Z and stress in a double-log scale. The effect of deformation parameters on the behavior of recrystallization was analyzed. Dynamic recrystallization (DRX) generally occurs at a higher temperature and at a lower strain rate. The constitutive equation of the spray-deposited AZ31 magnesium alloy is presented by calculating the deformation activation energy (199.8 kJ·mol-1). The as-spray-formed AZ31 alloy is easier for DRX nucleation at elevated temperatures due to the fine grain, which provides a large amount of nucleation sites and a high-diffusivity path for the atom. | LI Yongbing CHEN Yunbo CUI Hua DING Jie ZUO Lingli ZHANG Jishan | 2009 | Rare Metals2009，28，1： | 2 |
| 16 | Numerical investigation of the rebounding and the deposition behavior of particles during cold spraying显示文摘Particles may rebound from a substrate surface during cold spraying,which affects the quality of the coating.In this paper,the rebound phenomenon and its consequences on deposition behavior have been analyzed using the finite element analysis software ANSYS/LS-DYNA version 970.In a range of particle velocities of 50-1000 m/s,increases of the impact velocity caused a rapid decline of the rebound coefficient R to a low point Rmin.After that,R began to rise slowly.Then the effect of the impact velocities and material properties on the rebound phenomenon were analyzed.Both the material strength and density influenced this rebound phenomenon.Four stages of the impact process and a model of strain distribution were proposed in detail to explain the rebound phenomenon. | Xianglin ZHOU Xiangkun WU Jianguo WANG Jishan ZHANG | 2011 | Acta Metallurgica Sinica(English Letters)2011，24，1： | 2 |
| 17 | A novel bioactive polyurethane with controlled degradation and L-Arg release used as strong adhesive tissue patch for hemostasis and promoting wound healing显示文摘Effective strategy of hemostasis and promoting angiogenesis are becoming increasingly urgent in modern medicine due to millions of deaths caused by tissue damage and inflammation. The tissue adhesive has been favored as an optimistic and efficient path to stop bleeding, while, current adhesive presents limitations on wound care or potential degradation safety in clinical practice. Therefore, it is of great clinical significance to construct multifunctional wound adhesive to address the issues. Based on pro-angiogenic property of L-Arginine (L-Arg), in this study, the novel tissue adhesive (G-DLPUs) constructed by L-Arg-based degradable polyurethane (DLPU) and GelMA were prepared for wound care. After systematic characterization, we found that the G-DLPUs were endowed with excellent capability in shape-adaptive adhesion. Moreover, the L-Arg released and the generation of NO during degradation were verified which would enhance wound healing. Following the in vivo biocompatibility was verified, the hemostatic effect of the damaged organ was tested using a rat liver hemor-rhage model, from which reveals that the G-DLPUs can reduce liver bleeding by nearly 75% and no obvious inflammatory cells observed around the tissue. Moreover, the wound care effect was confirmed in a mouse full-thickness skin defect model, showing that the hydrogel adhesive significantly improves the thickness of newly formed dermis and enhance vascularization (CD31 staining). In summary, the G-DLPUs are promising candidate to act as multifunctional wound care adhesive for both damaged organ and trauma. | Faxing Zou Yansen Wang Yudong Zheng Yajie Xie Hua Zhang Jishan Chen M.Irfan Hussain Haoye Meng Jiang Peng | 2022 | Bioactive Materials2022，7，11： | 2 |
| 18 | FRACTAL ANALYSES OF DIRECTIONAL SOLIDIFICATION BEHAVIOR OF A Ni-BASE SUPERALLOY显示文摘The morphology of solid/liquid interface of a directionally solidification process is describedby means of fractal analysis,and the relations among the fractal dimension of the solid/liq-uid interface,solidification rate,dendrite arm space and the phosphorus content of the test al-loys have been given.It was found that the increase of the solidification rate and the phos-phorus content of the test alloy will lead to a increase,following the regularity of exponentialfunction,in the fractal dimension of solid/liquid interface.Furthermore,by combining thefractal theory and the thermodynamic principle with the measured results,it has been provedthat the fractal dimension is not only a kind of simple geometrical parameter used in des-cribing irregular geometry,but also a state function depending the change of solidificationparameters and chemical compositions. | SUN Liling DONG Lianke ZHANG Jishan TANG Yajun ZHANG Jinghua HU Zhuangqi Institute of Metal Research,Academia Sinica,Shenyang,China SUN Liling,Institute of Metal Research,Academia Sinica,Shenyang 110015,China | 1993 | Acta Metallurgica Sinica(English Letters)1993，6，5： | 2 |
| 19 | Structural evolution of spray-formed Al-70wt.%Si alloys during iso-thermal holding in the semi-solid state显示文摘The grain growth behavior of spray-formed Al-70wt.%Si alloys was studied in the semi-solid state. The speci- mens were isothermally heat-treated at various temperatures between the solidus and liquidus of Al-Si alloys and then quenched in water. The microstructure of reheated specimens was characterized using optical and scanning electron micro- scopies. The isothermal holding experiment was carried out to investigate grain growth behavior as a function of holding time and temperature in the semi-solid state. The coarsening mechanism and the effect of porosity on microstructure were also studied. | ZHANG Di CUI Hua WEI Yanguang ZHANG Jishan ZHANG Yongan XIONG Baiqing | 2005 | Rare Metals2005，24，4： | 2 |
| 20 | Synthesis and characterization of nanocrystalline Ni produced by cryomilling in liquid nitrogen显示文摘Nanocrystalline Ni powders were successfully fabricated by mechanically milling at cryogenic temperature (cryomilling)with 1 wt.%Y2O3 particles. The experimental results have shown that the Ni grain size is reduced to 25 nm after 2 h of cryomilling in the presence of the Y2O3 particles. The cryomilled Ni/Y2O3 powders can maintain their nanocrystalline structure up to 900°C, or 62% of the melting point of Ni. A bulk nanocrystalline Ni/Y2O3 material with a thermally stable grain size of approximately 100 nm was produced by cryomilling, cold isostatic pressing, followed by hot isostatic pressing. The microhardness of bulk nanocrystalline Ni/1wt.%Y2O3 is 315 DPH, which is two times as high as that of conventional Ni. | YANG Bin FAN Jianzhong HAO Bin TIAN Xiaofeng CHENG Junsheng ZHANG Jishan | 2007 | Rare Metals2007，26，2： | 2 |
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