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| 1 | Effects of Sb,Sm, and Sn additions on the microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloy显示文摘The microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd magnesium alloy with Sb, Sm, or Sn addition were investigated through X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The results show that small amounts of Sb, Sm, and especially Sn can refine the grains of the alloy. High melting point Sb3Y5, Al2Sm, and Nd5Sn3 intermetallic compounds can be formed respectively when Sb, Sm, and Sn are added to the alloy. Sb and Sm can improve the tensile strength of the alloy at ambient and elevated temperatures. The tensile strength of the alloy with Sm addition is the highest at 293 and 423 K. However, the tensile strength of the alloy with Sn addition is the highest at 448 K. | LI Kejie LI Quanan JING Xiaotian CHEN Jun ZHANG Xingyuan | 2009 | Rare Metals2009，28，5： | 39 |
| 2 | Notch1 signaling inhibits growth of EC109 esophageal carcinoma cells through downmodulation of HPV18 E6/E7 gene expression显示文摘 | Kejie ZHANG Quan-yi LU Xiao-qing NIU Peng ZHANG Jiang-ning ZHAO Zhao WANG Jia-sheng HU Pu LI Wen-li LIU | 2009 | Acta Pharmacologica Sinica2009，30，2： | 9 |
| 3 | Characteristics of the lower layer of sandstorms in the Minqin desert-oasis zone显示文摘By measuring the sand-dust flux,vertical deposition,and the wind velocity throughout 19 sandstorms in the Minqin region,we quantitatively analyzed the horizontal distribution and vertical variation in sandstorm characteristics under different land cover conditions.The effect of different land cover on mitigating sandstorms was also investigated.The results indicated that,in the surface layer ranging from 0-50 m,the intensity of sand-dust horizontal flux and concentration of sand-dust decreased with the increase of the height in the desert and the edge of oasis,whereas the two physical quantities increased slightly with the increase of the height in the oasis.The two physical quantities obey power function well under all three cover conditions.Moreover,in the desert and at the edge of oasis,the sand-dust vertical deposition decreased with the increase of the height.But a partial unimodal distribution at the oasis site and the maximum deposition occurred at the height of 9 m,which corresponds to the middle height of farmland protection forest.The annual flux that passed through a section of 1 m in width and 50 m in height was 9169 kg in the desert,5318 kg at the edge of oasis,and 2345 kg in the oasis.And the annual fluxes at the edge of oasis and in the oasis are 42% and 74% less,respectively,than that in the desert.This implies that the wind break forest significantly reduced the intensity of sandstorms. | ZHAO Ming ZHAN KeJie YANG ZiHui FANG ErTian QIU GuoYu WANG QiangQiang ZHANG YinChang GUO ShuJiang LI AiDe ZHANG JingChun | 2011 | Science China Earth Sciences2011，54，5： | 8 |
| 4 | ON NON-ISOTROPIC JACOBI PSEUDOSPECTRAL METHOD显示文摘在这篇论文,非各向同性的 Jacobi 假光谱方法被建议,它的应用斧子考虑了。一些结果在上;多维的 Jacobi 高斯类型插值和相关 Bernstein 杰克森类型不平等斧子建立了,它起一个重要作用在假光谱方法。假光谱方法被用于一二 -- 维的单个问题中间 axisymmetric 上的一个问题领域。建议计划的集中被建立。数字结果表明建议方法的效率。 | Benyu Guo Keji Zhang Department of Mathematics,Shanghai Normal University,Shanghai 200234,China Scientific Computing Key Laboratory of Shanghai Universities Division of Computational Science of E-Institute of Shanghai Universities | 2008 | Journal of Computational Mathematics2008，26，4： | 8 |
| 5 | Microstructure and mechanical properties of Mg-6Al magnesium alloy with yttrium and neodymium显示文摘The effects of rare earth(RE) elements Y and Nd on the microstructure and mechanical properties of Mg-6Al magnesium alloy were investigated.The results show that a proper level of RE elements can obviously ref ine the microstructure of Mg-6Al magnesium alloys,reduce the quantity of β-Mg17Al12 phase and form Al2Y and Al2Nd phases.The combined addition of Y and Nd dramatically enhances the tensile strength of the alloys in the temperature range of 20-175℃.When the content of RE elements is up to 1.8%,the values of tensile strength at room temperature and at 150℃ simultaneously reach their maximum of 253 MPa and 196 MPa,respectively.The main mechanisms of enhancement in the mechanical properties of Mg-6Al alloy with Y and Nd are the grain ref ining strengthening and the dispersion strengthening. | Chen Jun Li Quanan Li Jianghong Li Xiaofeng Li Kejie Zhang Xingyuan | 2009 | China Foundry2009，6，2： | 5 |
| 6 | Epitaxy of rare earth element fluorcarbonate minerals from carbonatite dyke at Bayan Obo, Inner Mongolia, China显示文摘Rare earth element fluorocarbonate minerals such as bastnaesite and parisite are firstly discovered in carbonatite dykes from Bayan Obo, Inner Mongolia, China. Bastnaesite rarely occurs as homogeneously single crystal, but contains microfine phase of parisite. They form regular intergrowth along (0001) plane net, which is identified as epitaxy. This eptactic texture results from the variation of chemical composition of crystallizing agents of those minerals that crystallize directly from carbonatite magma. | Xueming Yang Peishan Zhang Kejie Tao Xiaoyong Yang Shuangxi Chen Minglong Zou M. J. Le Bas R. N. Wilson R. Ranson L. S. Campbell et al. | 1998 | Chinese Science Bulletin1998，43，13： | 2 |
| 7 | Effect of Soil Drying Intensity During an Experimental Drying-Rewetting Event on Nutrient Transformation and Microbial Community Composition显示文摘Soil drying-rewetting(DRW) events affect nutrient transformation and microbial community composition; however, little is known about the influence of drying intensity during the DRW events. Therefore, we analyzed soil nutrient composition and microbial communities with exposure to various drying intensities during an experimental drying-rewetting event, using a silt loam from a grassland of northern China, where the semi-arid climate exposes soils to a wide range of moisture conditions, and grasslands account for over 40% of the nation's land area. We also conducted a sterilization experiment to examine the contribution of soil microbes to nutrient pulses. Soil drying-rewetting decreased carbon(C) mineralization by 9%–27%. Both monosaccharide and mineral nitrogen(N) contents increased with higher drying intensities(drying to ≤ 10% gravimetric water content), with the increases being 204% and 110% with the highest drying intensity(drying to 2% gravimetric water content), respectively, whereas labile phosphorus(P)only increased(by 105%) with the highest drying intensity. Moreover, levels of microbial biomass C and N and dissolved organic N decreased with increasing drying intensity and were correlated with increases in dissolved organic C and mineral N, respectively,whereas the increases in labile P were not consistent with reductions in microbial biomass P. The sterilization experiment results indicated that microbes were primarily responsible for the C and N pulses, whereas non-microbial factors were the main contributors to the labile P pulses. Phospholipid fatty acid analysis indicated that soil microbes were highly resistant to drying-rewetting events and that drought-resistant groups were probably responsible for nutrient transformation. Therefore, the present study demonstrated that moderate soil drying during drying-rewetting events could improve the mineralization of N, but not P, and that different mechanisms were responsible for the C, N, and P pulses observed during drying-rewetting events. | SUN Dashend BI Qingfang LI Kejie ZHU Jun ZHANG Qichun JIN Chongwei LU Lingli LIN Xianyong | 2018 | Pedosphere2018，28，4： | 2 |
| 8 | Mild hydrothermal preparation of a layered metal hydroxide salt with microtube/rod morphology显示文摘Microtubes/rods of the layered metal hydroxide salt compound Cd 2 (OH) 3 (DS)·nH 2 O, where DS stands for dodecyl sulfate sandwiched between two adjacent inorganic sheets, have been synthesized for the first time through a mild hydrothermal reaction route. The microtubes/rods have a diameter of about 1 m and a length ranging from several microns to 20 m. The growth process of microtubes/rods under the experimental conditions employed follows a dissolution–recrystallization route. | He Zhang Hongbin Li Ying Guo Guodong Li Chi Fan Keji Wang Jiesheng Chen | 2010 | Particuology2010，8，3： | 1 |
| 9 | Oil‐paper insulation partial discharge ultrasonic multifrequency sensing array based on fibre‐optic Fabry-Perot sensor显示文摘In order to improve the sensitivity and accuracy of oil‐paper insulation partial discharge detection by the fibre‐optic Fabry-Perot(FP)ultrasonic sensor,this work studied the ultrasonic signal’s frequency characteristics of typical oil‐paper insulation partial dis-charges and the vibration characteristics of the FP sensor’s diaphragm in the liquid environment.Based on the works above,a multifrequency FP sensor array is proposed,consisting of several FP sensors with different resonant frequencies to detect partial discharges.The experimental results show that the liquid environment has a significant effect on the vibration characteristics of the FP sensor’s diaphragm,and the sensitivity and accuracy of partial discharge detection can be improved based on the multifrequency FP sensing array,which can also be applied in the pattern recognition and localisation of partial discharges. | Zhixian Zhang Jiali Lei Weigen Chen Tianhe Yang Yuxuan Song Kejie Wu Fan Liu | 2022 | High Voltage2022，7，2： | 1 |
| 10 | Triazole-forming waterborne polyurethane composites fabricated with silane coupling agent functionalized nano-silica显示文摘 | Sun Daoxing Miao Xiao Zhang Kejie | 2011 | J Colloid Interf Sci2011，361，2： | 1 |
| 11 | Triazole-forming waterborne polyurethane composites fabricated with silane coupling agent functionalized nano-silica显示文摘 | SUN Daoxing MIAO Xiao ZHANG Kejie | 2011 | Journal of Colloid and Interface Science2011，361，2： | 1 |
| 12 | Triazole-forming waterborne polyurethane composites fabricated with silane coupling agent functionalized nano-silica显示文摘 | Daoxing Sun Xiao Miao Kejie Zhang Hern Kim Yongan Yuan | 2011 | Journal of Colloid And Interface Science2011，，2： | 1 |
| 13 | An efficient approach to representing and mining knowledge from Qing court medical records显示文摘在 Qing 法庭上研究医药记录(RQCMR ) 是被第六合作者 Keji,陈和他的同事编辑并且注解的一本大卷的书,并且由帝国家庭的所有医药记录和 Qing 王朝的贵族组成。为了揭示并且利用他们的高度,在繁体中文药研究和现代临床的实践珍视两个,我们开发了转变 Qing 场的一个方法医药记录(QCMR ) 进一个机器可读的、结构化的代表,以便统计分析和数据采矿能精确地被执行。方法由框架本体论组成基于的医药语言,叫了 MedL 代表 QCMR,为编 MedL 框架进一个数据库的一个分析器,和一个探险模式采矿技术。与这个方法,全部 RQCMR 体积被转变成一个数据库,医药模式可以是从数据库的 mined。 | Weimin WANG Jingchun ZHANG Cong CAO Tao HOU Yue LIU Keji CHEN | 2011 | Frontiers of Computer Science2011，5，4： | 1 |
| 14 | Improving the uplink performance of drive-thru Internet via platoon-baSed cooperative retransmission显示文摘 | Jia Dongyao Zhang Rui Lu Kejie | 2014 | IEEE Trans on Vehicular Technology2014，63，9： | 1 |
| 15 | Preparation of CH_3NH_3PbI_3 thin films for solar cells via Vapor Transfer Method显示文摘Organometal halide perovskite based solar cells have emerged as one of the most promising candidates for low-cost and high-efficiency solar cell technologies.Here a Vapor Transfer Method(VTM)is used to fabricate high quality perovskite thin films in a balanced vacuum capsule.By adjusting the reaction temperature,CH_3NH_3I saturated vapor which then reacts with PbI_2films can be controlled and the formation process of CH_3NH_3PbI_3perovskite films can be further influenced.Prepared perovskite films which exhibit pure phase,smooth surface and high crystallinity are assembled into planar heterojunction inverted solar cells.The whole fabrication process of solar cell devices is organic solution free.Finally,the champion cell achieved power conversion efficiency(PCE)of 13.08%with negligible current–voltage hysteresis under fully open-air conditions.The photovoltaic performance could be further enhanced by optimizing perovskite composition and the device structure. | Kejie Feng Yitong Liu Yuancheng Zhang Yujie Liu Xiaoliang Mo | 2018 | Journal of Energy Chemistry2018，27，5： | 1 |
| 16 | Carbonatite dykes at bayan Obo, inner Mongolia, China显示文摘 | M. J. Bas J. Kellere Tao Kejie F. Wall C. T. William Zhang Peishan | 1992 | Mineralogy and Petrology1992，，3： | 1 |
| 17 | Carbonatite dykes at bayan Obo, inner Mongolia, China显示文摘 | M. J. Bas J. Kellere Tao Kejie F. Wall C. T. William Zhang Peishan | 1992 | Mineralogy and Petrology1992，，3： | 1 |
| 18 | Inactivated Pseudomonas PE(△Ⅲ)exotoxin fused to neutralizing epitopes of PEDV S proteins produces a specific immune response in mice显示文摘Porcine epidemic diarrhea(PED)caused by the porcine epidemic diarrhea virus(PEDV),is a severe infectious and devastating swine disease that leads to serious economic losses in the swine industry worldwide.An increased number of PED cases caused by variant PEDV have been reported in many countries since 2010.S protein is the main immunogenic protein containing some B-cell epitopes that can induce neutralizing antibodies of PEDV.In this study,the construction,expression and purification of Pseudomonas aeruginosa exotoxin A(PE)without domain Ⅲ(PE△Ⅲ)as a vector was performed for the delivery of PEDV S-A or S-B.PE(△Ⅲ)PEDV S-A and PE(△Ⅲ)PEDV S-B recombinant proteins were confirmed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and Western blot analysis.The immunogenicity of PEDV S-A and PEDV S-B subunit vaccines were evaluated in mice.The results showed that PEDV-S-B vaccine could not only induce specific humoral and Th1 type-dominant cellular immune responses,but also stimulate PEDV-specific mucosal immune responses in mice.PEDV-S-B subunit vaccine is a novel candidate mucosal vaccine against PEDV infection. | Leqiang Sun Yajie Tang Keji Yan Huanchun Chen Huawei Zhang | 2021 | Animal Diseases2021，1，3： | 1 |
| 19 | Gelatio enhances 2-keto-L-gulonic acid production based on Ketogulonigenium vulgate genome annotation 显示文摘 | Liu Liming Chen Kejie Zhang Jing Liu Jie Chen Jian | 2011 | Journal ofBiotechnology2011，156，： | 1 |
| 20 | Effects of yttrium on microstructure and mechanical properties of Mg-6Al magnesium alloy显示文摘Since Y has a great solid solubility in magnesium alloys, it helps enhancing the heat-resistant property of magnesium alloys. The effects of Y on microstructures and mechanical properties of Mg-6Al alloy have been studied in this work. The results show that Y addition refines grains of Mg-6Al alloy, and reduces the amount of the Mg 17 Al 12 phase. At the same time, the high melting-point Al 2 Y phase particles are formed. According to the mathematical model of the two-dimensional lattice misfit proposed by Braffit, it is believed that the Al 2 Y particles can serve as the nucleation sites for α-Mg. After T6 treatment, both elongation and ultimate tensile strength of Mg-6Al alloy at the room temperature and high-temperature increased firstly and then decreased, with increasing Y addition. The peak mechanical properties were achieved in the Mg-6Al-1.2Y alloy system. Y addition appears to change the fracture characteristic of Mg-6Al alloy. With 1.2wt%Y, the fracture surface of the alloy showed a lot of dimples and tearing ridges which connected the microscopic dimples and the fracture is mixed fracture of quasi-cleavage and ductile fracture. | Ren Wenliang Li Quan'an Li Jianhong Li Kejie Zhang Xingyuan | 2010 | China Foundry2010，7，4： | 1 |
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