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| 1 | Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects显示文摘The natural environment provides material essentials for human survival and development. The characteristics,processes, regional differentiation and forcing mechanisms of the elements of the natural environment(e.g. geomorphology,climate, hydrology, soil, etc.) are the main objects of research in physical geography. China has a complex natural environment and huge regional differentiation and therefore it provides outstanding reserach opportunities in physical geography. This review summarizes the most important developments and the main contributions of research in the physical geography and human living environment in China during the past 70 years. The major topics addressed are the uplift of the Tibetan Plateau and the evolution of its cryosphere, the development of fluvial systems, the acidification of the vast arid region of the Asian interior, variations in the monsoon and westerly climate systems on multiple timescales, the development of lakes and wetlands, the watershed system model, soil erosion, past human-environment interactions, biogeography, and physical geographic zonality. After briefly introducing international research developments, we review the history of research in physical geography in China, focusing on the major achievements and major academic debates, and finally we summarize the status of current research and the future prospects. We propose that in the context of the national demand for the construction of an ecological civilization, we should make full use of the research findings of physical geography, and determine the patterns and mechanisms of natural environmental processes in order to continue to promote the continued contribution of physical geography to national development strategies, and to further contribute to the theory of physical geography from a global perspective. | Fahu CHEN Bojie FU Jun XIA Duo WU Shaohong WU Yili ZHANG Hang SUN Yu LIU Xiaomin FANG Boqiang QIN Xin LI Tingjun ZHANG Baoyuan LIU Zhibao DONG Shugui HOU Lide TIAN Baiqing XU Guanghui DONG Jingyun ZHENG Wei YANG Xin WANG Zaijun LI Fei Wang Zhenbo HU Jie WANG Jianbao LIU Jianhui CHEN Wei HUANG Juzhi HOU Qiufang CAI Hao LONG Ming JIANG Yaxian HU Xiaoming FENG Xingguo MO Xiaoyan YANG Dongju ZHANG Xiuhong WANG Yunhe YIN Xiaochen LIU | 2019 | Science China Earth Sciences2019，62，11： | 11 |
| 2 | SHY2 as a node in the regulation of root meristem development by auxin, brassinosteroids, and cytokinin显示文摘In multicellular organisms,the balance be-tween cell division and differentiation determines organ size,and represents a central unknown in devel-opmental biology.In Arabidopsis roots,this balance is mediated between cytokinin and auxin through a reg-ulatory circuit converging on the IAA3/SHORT HYPO-COTYL 2(SHY2)gene.Here,we show that crosstalk between brassinosteroids(BRs)and auxin occurs in the vascular transition zone to promote root meristem de-velopment.We found that BR increases root meristem size by up-regulating expression of the PINFORMED 7(PIN7)gene and down-regulating expression of the SHY2 gene.In addition,BES1 could directly bind to the pro-moter regions of both PIN7 and SHY2,indicating that PIN7 and SHY2 mediate the BR-induced growth of the root meristem by serving as direct targets of BES1.Moreover,the PIN7 overexpression and loss-of-function SHY2 mutant were sensitive to the effects of BR and could partially suppress the short-root phenotypes associated with deficient BR signaling.Interestingly,BRs could inhibit the accumulation of SHY2 protein in response to cytokinin.Taken together,these findings suggest that a complex equilibrium model exists in which regulatory interactions among BRs,auxin,and cytokinin regulate optimal root growth. | Taotao Li Xinke Kang Wei Lei Xiuhong Yao Lijuan Zou Dawei Zhang Honghui Lin | 2020 | Journal of Integrative Plant Biology2020，62，10： | 5 |
| 3 | Reappearance of Risk of Schistosomiasis Transmission and the Response After 27 Years of Interrupted Transmission—Guangdong Province,China,2019显示文摘Summary What is already known about this topic?No live specimens of the snail Oncomelania hupensis(O.hupensis)and indigenous infected cases of schistosomiasis japonicum have been found in Guangdong Province since 1993,but live O.hupensis was found again in 2019.This study conducted O.hupensis identification and elimination.What is added by this report?In 2019,live O.hupensis specimens were detected by routine surveillance in areas in Qujiang of Shaoguan City and Yingde of Qingyuan City,and an emergency response was launched immediately. | Shaoyu Huang Qiang Mao Qili Zhong Xiuhong Fan Weiquan Li Yonghua Rao Fuquan Pei Shizhu Li Zhuohui Deng | 2021 | China CDC weekly2021，3，51： | 4 |
| 4 | Computer simulation of core filling process of cast high speed steel roll显示文摘Core filling process of cast high speed steel roll was simulated.Ductile iron was used as core material.The influences of filling parameters,such as core filling time and core filling temperature,on the filling process were investigated.Based on the simulated results,optimal core filling parameters were determined.The predicted temperature fields show that the temperature at the roll shoulder is the lowest during the core filling process and usually causes binding defects there.Method for solving this problem was presented. | Song Nannan Luan Yikun Bai Yunlong Kang Xiuhong Xia Lijun Li Dianzhong | 2009 | China Foundry2009，6，4： | 4 |
| 5 | An improved Landsat Image Mosaic of Antarctica显示文摘A revised Landsat Image Mosaic of Antarctica (LIMA) is presented, using the 1073 multi-band scenes of the original Landsat-7 ETM+ LIMA image collection available at the United States Geological Survey (USGS: http://gffzza64998f73d704ee0hcuk596uk09uq69wo.ffgz.tsg.suse.edu.cn/). Three improvements have been applied during the data processing: (1) DN saturation is adjusted by adopting a linear regression, which has a lower root mean square error than the ratio regression used by LIMA; (2) solar elevation angle is calculated using pixel-level latitude/longitude and the acquisition time and date of the central pixel of the scene, improving slightly upon the bilinear interpolation of the solar elevation angles of scene corners applied in LIMA; and (3) two additional image bands, Band 5 and Band 7, are sharpened using the panchromatic band (Band 8) and a Gram-Schmidt Spectral Sharpening algorithm to more easily distinguish snow, cloud and exposed rocks. The final planetary reflectance product is stored in 16-bit bands to preserve the full radiometric content of the scenes. A comparative statistical analysis among 12 sample regions indicates that the new mosaic has enhanced visual qualities, information entropy, and information content for land cover classification relative to LIMA. | HUI FengMing CHENG Xiao LIU Yan ZHANG YanMei YE YuFang WANG XianWei LI Zhan WANG Kun ZHAN ZhiFei GUO JianHong HUANG HuaBing LI XiuHong GUO ZiQi GONG Peng | 2013 | Science China Earth Sciences2013，56，1： | 4 |
| 6 | Numerical Simulation of Stress and Deformation for a Duplex Stainless Steel Impeller during Casting and Heat Treatment Processes显示文摘一面大规模、薄墙有复杂几何学的双不锈钢 impeller 在扔期间严重地并且 unpredictably 被使变形,热处理过程为最后的部分导致了维的失败。在这篇论文, impeller 的失真在扔和热处理期间是 calculated.A 广告软件, Experto-ViewCast,被用来在扔和热处理过程期间模仿短暂的热转移,团结和机械行为。为质量,精力和机械平衡管理微分方程的联合集合被有限控制体积和有限元素 method.A thermoelastic-visco-plastic 变阻器解决逻辑模型被用来计算扔的抑制收缩。在每次增加, a coupling of 热转移和力学被执行。有模型预言的试验性的大小的比较显示出好同意。从片的关键点的计算排水量,合适的反的排水量决心提供扔模式的最佳并且为片的两张脸完成一件制服和合理用机器制造津贴。 | Lugui CHEN Yong LING Xiuhong KANG Lijun XIA Dianzhong LI | 2008 | Journal of Materials Science & Technology2008，24，3： | 4 |
| 7 | Chemical Compositions,Microstructure and Mechanical Properties of Roll Core used Ductile Iron in Centrifugal Casting Composite Rolls显示文摘The industrial manufacture processes of three kinds of roll core used ductile irons have been investigated via systematical experiments. Effects of the ratio of C/Si, pig iron, nodularizer and alloying method on the microstructure and mechanical properties of the heavy section ductile iron have been analyzed. It has been found that when treated with RE-Mg plus Sb, high quality nodular castings can be produced even if much anti spheroidizing alloy elements are included in the pig iron. The alloy element Sb played an important role in the control of graphite morphology. | Yunlong Bai Yikun Luan Nannan Song Xiuhong Kang Dianzhong Li Yiyi Li | 2012 | Journal of Materials Science & Technology2012，28，9： | 3 |
| 8 | Numerical study of macrosegregation formation of ingot cast in normal sand mold and water-cooled sand mold显示文摘Formation of macrosegregation of 5 t steel ingots cast in sand molds with and without water-cooled copper tube is simulated by solving macroscopic mass,momentum,species and energy conservation equations with the consideration of shrinkage formation.Predicted macrosegregation pattern of the ingots shows a fair agreement with the experimental data.Both calculations and experiments reveal that some positive segregation patches are formed at the bottom of ingot.With the water-cooled copper tube inserted in the sand mold,the ingot cast has a less intensive macrosegregation.Mechanisms of macrosegregation formation are numerically analyzed.Explanations regarding the influences of fluid flow and temperature change upon the segregation formation are provided. | Dongrong LIU Xiuhong KANG Baoguanq SANG Dianzhong LI | 2011 | Acta Metallurgica Sinica(English Letters)2011，24，1： | 3 |
| 9 | Numerical Simulation of Solidification of Work Roll in Centrifugal Casting Process显示文摘A program on the solidification process of horizontal centrifugal casting coupled with eutectic carbides segregation has been developed in this paper.Due to the geometrical features of work roll,a cylindrical coordinate system was used.The temperature field of the outer layer at the end of filling process was imported as the initial temperature condition for the solidification process.The model of eutectic carbides segregation caused by different densities between eutectic MC and the molten steel was coupled in the program.The temperature field of the outer layer of work roll during horizontal centrifugal casting process was investigated.Results show that the outer layer has a 'sandwich shape' solid fraction manner.Results also indicate that the segregation of eutectic MC is quite severe during centrifugal casting process.It forms four zones of different content of carbides in radial direction.The simulated results of MC carbides segregation phenomenon agree with the experimental observations. | Nannan Song Yikun Luan Yunlong Bai Z.A. Xu Xiuhong Kang Dianzhong Li | 2012 | Journal of Materials Science & Technology2012，28，2： | 2 |
| 10 | Synthesis and Optical Properties of TiO2 Nanoparteles 显示文摘 | Zhao Yin Li Chunzhong Liu Xiuhong | 2007 | Materials Letters2007，61，1： | 1 |
| 11 | Changes in agricultural land use in China: 1981-2000显示文摘 | LI Xiubin WANG Xiuhong | 2003 | Asian Geographer2003，22，12： | 1 |
| 12 | Camouflaged information identification and its application显示文摘 | Shi Kaiquan Li Xiuhong | 2010 | An International Journal Advances in Systems Science and Applications2010，10，2： | 1 |
| 13 | Changes in agricultural land use in China: 1981 -2000 显示文摘 | Li Xiubin Wang Xiuhong | 2003 | Asian Geographer2003，22，12： | 1 |
| 14 | Camouflaged informatiation and its on identification and its applications显示文摘 | SHI Kaiquan LI Xiuhong | 2010 | An International Journal Advances in System Science and Applications2010，10，2： | 1 |
| 15 | Surface characteristics and microstrueture of dispersed TiO2 nanopartieles prepared by diffusion flame combustion 显示文摘 | Zhao Yin Li Chunzhong Liu Xiuhong | 2008 | Mater Chem Phys2008，107，23： | 1 |
| 16 | Zn-doped TiO2 nanopartieles with high photoeatalytie activity synthesized by hydrogen-oxygen diffusion flame 显示文摘 | Zhao Yin Li Chunzhong Liu Xiuhong | 2007 | Appl Catal B: Environ2007，79，3： | 1 |
| 17 | Correlation of miscibility and mechanical properties of polypropylene/olefin block copolymers:Effect of chain composition显示文摘 | Guoming Liu Xiuqin Zhang Xiuhong Li | 2012 | Journal of Applied Polymer Science2012，152，1： | 1 |
| 18 | Camouflaged information identification and its applications 显示文摘 | SHI Kaiquan LI Xiuhong | 2010 | All International Journal Advances in Systems Science and Applications2010，10，2： | 1 |
| 19 | Synthesis and characterization of a novel MPEG–chitosan diblock copolymer and self-assembly of nanoparticles显示文摘 | XiangYe Kong XingYi Li XiuHong Wang TingTing Liu YingChun Gu Gang Guo Feng Luo Xia Zhao YuQuan Wei ZhiYong Qian | 2009 | Carbohydrate Polymers2009，，1： | 1 |
| 20 | Camouflaged informatiation and its on identification and its appli- cations显示文摘 | SHI Kaiquan LI Xiuhong | 2010 | An International Journal Advances in System Science and Applications2010，10，2： | 1 |
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