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| 1 | Hydrothermal Synthesis of Cs_xWO_3 and the Effects of N_2 Annealing on its Microstructure and Heat Shielding Properties显示文摘Cesium tungsten bronze(Cs_xWO_3) powders were synthesized by hydrothermal reaction at 190 ℃ by using sodium tungstate and cesium carbonate as raw materials,and the effects of N_2 annealing on the microstructure and near-infrared(NIR) shielding as well as heat insulation properties of Cs_xWO_3 were investigated.The results indicated that the synthesized Cs_xWO_3 powders exhibited hexagonal Cs_(0.32)WO_3crystal structure,and subsequent N_2 annealing could further improve the crystallinity of CsxW03 particles.Moreover,the NIR shielding and heat insulation properties of Cs_xWO_3 could be further improved after N_2annealing at appropriate temperature for a period of time.Particularly,the 500 ℃-annealed Cs_xWO_3 products in the N_2 atmosphere showed the best NIR shielding and heat insulation properties.When the N_2 annealing temperature was higher than 700 ℃,the NIR shielding properties decreased again.The 800 ℃-annealed samples in the N_2 atmosphere showed higher visible light transmittance,however,the NIR shielding properties were lower than that of the non-annealed samples. | Fei Shi Jingxiao Liu Xiaoli Dong Qiang Xu Jiayu Luo Hongchao Ma | 2014 | Journal of Materials Science & Technology2014，30，4： | 5 |
| 2 | DID Code:A Bridge Connecting the Materials Genome Engineering Database w让h Inheritable Integrated Intelligent Manufacturing显示文摘A data identifier(DID)is an essential tag or label in all kinds of databases—particularly those related to integrated computational materials engineering(ICME),inheritable integrated intelligent manufacturing(I3M),and the Industrial Internet ofThings.With the guidance and quick acceleration of the developme nt of advanced materials,as envisioned by official documents worldwide,more investigations are required to construct relative numerical standards for material informatics.This work proposes a universal DID format consisting of a set of build chains,which aligns with the classical form of identifier in both international and national standards,such as ISO/IEC 29168-1:2000,GB/T 27766-2011,GA/T 543.2-2011,GM/T 0006-2012,GJB 7365-2011,SL 325-2014,SL 607-201&WS 363.2-2011,and QX/T 39-2005.Each build chain is made up of capital letters and numbers,with no symbols.Moreover,the total length of each build chain is not restricted,which follows the formation of the Universal Coded Character Set in the international standard of ISO/IEC 10646.Based on these rules,the proposed DID is flexible and convenient for extendi ng and sharing in and between various cloud-based platforms.Accordingly,classical two-dimensional(2D)codes,including the Hanxin Code,Lots Perception Matrix(LP)Code,Quick Response(Q.R)code,Grid Matrix(GM)code,and Data Matrix(DM)Code,can be constructed and precisely recognized and/or decoded by either smart phones or specific machines.By utilizing these 2D codes as the fingerprints of a set of data linked with cloud-based platforms,progress and updates in the composition-processing-structure-property-performance workflow process can be tracked spontaneously,paving a path to accelerate the discovery and manufacture of advanced materials and enhance research productivity,performance,and collaboration. | William Yi Wang Peixuan Li Deye Lin Bin Tang Jun Wang Quanmei Guan Qian Ye Haixing Dai Jun Gao Xiaoli Fan Hongchao Kou Haifeng Song Feng Zhou Jijun Ma Zi-Kui Liu Jinshan Li Weimin Liu | 2020 | Engineering2020，6，6： | 4 |
| 3 | Optimizing mechanical and magnetic properties of AlCoCrFeNi high-entropy alloy via FCC to BCC phase transformation显示文摘FCC,BCC and B2 phases,the most common phases in high-entropy alloys(HEAs),are widely investigated to tailor their mechanical and magnetic performances.The detailed investigation of FCC to BCC/B2 phase transformation of Al Co Cr Fe Ni HEA in this paper reveals its evolution and structure-properties relations in terms of both temperature and holding duration.With increasing heat treatment temperature and duration,such transition will progress simultaneously at both the dendric core(DC)region and interdendric(ID)region and the volume of phase transformation from FCC to BCC phases is greater than FCC to B2 phases,resulting in increased yield strength and saturation magnetization.The obvious phase transition of the Al Co Cr Fe Ni HEA at 1200℃can enhance its yield strength and saturation magnetization as a sacrifice of its fracture strain.However,an excellent combination of mechanical-magnetic properties was achieved when heat-treated at 1100℃for 50 h by optimizing both the transformation and the size of B2 phases.Our present study could pave ways to design the HEAs or other alloys with an optimum combination of mechanical and magnetic properties for application-oriented viewpoints. | Chendong Zhao Jinshan Li Yudong Liu Xiao Ma Yujie Jin William Yi Wang Hongchao Kou Jun Wang | 2021 | Journal of Materials Science & Technology2021，，27： | 3 |
| 4 | Integration of high-performance spin-orbit torque MRAM devices by 200-mm-wafer manufacturing platform显示文摘We demonstrate in-plane field-free-switching spin-orbit torque(SOT)magnetic tunnel junction(MTJ)devices that are capable of low switching current density,fast speed,high reliability,and,most importantly,manufactured uniformly by the 200-mm-wafer platform.The performance of the devices is systematically studied,including their magnetic properties,switch-ing behaviors,endurance and data retention.The successful integration of SOT devices within the 200-mm-wafer manufactur-ing platform provides a feasible way to industrialize SOT MRAMs.It is expected to obtain excellent performance of the devices by further optimizing the MTJ film stacks and the corresponding fabrication processes in the future. | Hongchao Zhang Xiangyue Ma Chuanpeng Jiang Jialiang Yin Shuqin Lyu Shiyang Lu Xiantao Shang Bowen Man Cong Zhang Dandan Li Shuhui Li Wenjing Chen Hongxi Liu Gefei Wang Kaihua Cao Zhaohao Wang Weisheng Zhao | 2022 | Journal of Semiconductors2022，43，10： | 2 |
| 5 | Point Cloud Classification and Accuracy Analysis Based on Feature Fusion显示文摘A method for land-cover classification was proposed based on the fusion of features generated from waveform data and point cloud respectively.It aims to partially overcome the ineffectiveness of many traditional classifiers caused by the fact that point cloud is lacking spectral information.The whole flowchart of the method is as follows:Firstly,Gaussian decomposition was applied to fit an echo full-waveform.The parameters associated with the Gaussian function were optimized by LM(Levenberg-Marquard)algorithm.Six and thirteen features were generated to describe the waveform characteristics and the local geometry of point cloud,respectively.Secondly,a random forest was selected as the classifier to which the generated features were input.Relief-F was used to rank the weights of all the features generated.Finally,features were input to the classifier one by one according to the weights calculated from feature ranking,where classification accuracies were evaluated.The experimental results show that the effectiveness of the fusion of features generated from waveform and point cloud for LiDAR data classification,with 95.4%overall accuracy,0.90 kappa coefficient,which outperform the results obtained by a single class of features,no matter whether they were generated from point cloud or waveform data. | Xiaochen WANG Hongchao MA Liang ZHANG Zhan CAI Haichi MA | 2021 | Journal of Geodesy and Geoinformation Science2021，4，3： | 2 |
| 6 | Distributed data organization and parallel data retrieval methods for huge laser scanner point clouds显示文摘 | MA Hongchao WANG Zongyue | 2011 | Computers & Geosciences2011，37，2： | 1 |
| 7 | Dehydrogenation of isobutane to isobutene over V2Os/',/-A1203 catalysts:effects of the extent of catalyst reduction on catalytic per- formance 显示文摘 | Ma Hongchao Fu Yinghuan Li Ying | 2003 | Polish Journal of Chemistry2003，77，7： | 1 |
| 8 | Characterization and reactivity of SnO2-doped V2O5/γ-Al2O3 catalysts in dehydrogenation of isobutane to isobutene显示文摘 | FU Yinghuan MA Hongchao WANG Zhenlv | 2004 | Journal of Molecular Catalysis A:Chemical2004，221，12： | 1 |
| 9 | Distributed data organization and parallel data retrieval methods for huge laser scanner point clouds显示文摘 | Ma Hongchao Wang Zongyue | 2010 | Computers&Geosciences2010，，： | 1 |
| 10 | Effect of potassium modification on structure and reactivity of V2O5/gamma-Al2O3 for isobutane dehydrogenation to isobutene显示文摘 | MA Hongchao WANG Zhenlv ZHU Wanchun | 2002 | Polish Journal of Chemistry2002，76，12： | 1 |
| 11 | The Surface Energy Budget and Its Impact on the Freeze-thaw Processes of Active Layer in Permafrost Regions of the Qinghai-Tibetan Plateau显示文摘The surface energy budget is closely related to freeze-thaw processes and is also a key issue for land surface process research in permafrost regions.In this study,in situ data collected from 2005 to 2015 at the Tanggula site were used to analyze surface energy regimes,the interaction between surface energy budget and freeze-thaw processes.The results confirmed that surface energy flux in the permafrost region of the Qinghai-Tibetan Plateau exhibited obvious seasonal variations.Annual average net radiation(R_(n))for 2010 was 86.5 W m^(-2),with the largest being in July and smallest in November.Surface soil heat flux(G_(0))was positive during warm seasons but negative in cold seasons with annual average value of 2.7 W m^(-2).Variations in R_(n) and G_(0) were closely related to freeze-thaw processes.Sensible heat flux(H)was the main energy budget component during cold seasons,whereas latent heat flux(LE)dominated surface energy distribution in warm seasons.Freeze-thaw processes,snow cover,precipitation,and surface conditions were important influence factors for surface energy flux.Albedo was strongly dependent on soil moisture content and ground surface state,increasing significantly when land surface was covered with deep snow,and exhibited negative correlation with surface soil moisture content.Energy variation was significantly related to active layer thaw depth.Soil heat balance coefficient K was>1 during the investigation time period,indicating the permafrost in the Tanggula area tended to degrade. | Junjie MA Ren LI Hongchao LIU Zhongwei HUANG Tonghua WU Guojie HU Yao XIAO Lin ZHAO Yizhen DU Shuhua YANG | 2022 | Advances in Atmospheric Sciences2022，39，1： | 1 |
| 12 | Dehydrogenation of isobutane to isobutene over V2O5/Al2O3 catalysts:effects of the extent of catalyst reduction on catalytic performance显示文摘 | MA Hongchao FU Yinghuan LIU Ziyu | 2003 | Polish Journal of Chemistry2003，77，： | 1 |
| 13 | Dehydrogenationof isobutane over V2Os/y-A^O3 catalyst显示文摘 | Wang Guojia Ma Hongchao Li Ying | 2001 | Reaction Kinet-ics and Catalysis Letters2001，74，1： | 1 |
| 14 | Distributed Data Organization and Parallel Data Retrieval Methods for Huge Laser Scanner Point Clouds显示文摘 | Ma Hongchao Wang Zongyue | 2011 | Computers&Geosciences2011，37，2： | 1 |
| 15 | Dehydrogenation of isobutane over V 2 O 5 /gamma-Al 2 O 3 catalyst显示文摘 | Wang Guojia Ma Hongchao Li Ying | 2001 | React Kinet Catal Lett2001，74，1： | 1 |
| 16 | Charaterization and reactivity of SnO 2 -doped V 2 O 5 /gamma-Al 2 O 3 catalysts in dehydrogenation of isobutane to isobutene显示文摘 | Fu Yinghuan Ma Hongchao Wang Zhenlu | 2004 | J Mol Catal A:Chem2004，221，12： | 1 |
| 17 | Catalytic behavior of V2O5/Al2O3 and V2O5/SiO2 in dehydrogenation of isobutane to isobutene显示文摘 | FU Yinghuan MA Hongchao WANG Zhenlv | 2004 | Journal of Molecular Catalysis A:Chemical2004，12，21： | 1 |
| 18 | Effect of potassium modification on structure and reactivity of V2O5/gamma-Al2O3 for isobutane dehydrogenation to isobutene显示文摘 | MA Hongchao WANG Zhenlv ZHU Wanchun | 2002 | Polish Journal of Chemistry2002，76，12： | 1 |
| 19 | Dehydrogenation of isobutane to isobutene over V2O5/Al2O3 catalysts:effects of the extent of catalyst reduction on catalytic performance显示文摘 | MA Hongchao FU Yinghuan LI Ying | 2003 | Polish Journal of Chemistry2003，77，7： | 1 |
| 20 | Distributed data organization and parallel data retrieval methods for huge laser scanner point clouds显示文摘 | Ma Hongchao Zongyue Wang | 2010 | Computers and Geosciences2010，，2： | 1 |
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