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| 1 | Two-dimensional characterization of three-dimensional magnetic bubbles in Fe_(3)Sn_(2) nanostructures显示文摘We report differential phase contrast scanning transmission electron microscopy(TEM) of nanoscale magnetic objects in Kagome ferromagnet Fe_(3)Sn_(2) nanostructures. This technique can directly detect the deflection angle of a focused electron beam, thus allowing clear identification of the real magnetic structures of two magnetic objects including three-ring and complex arch-shaped vortices in Fe_(3)Sn_(2) by Lorentz-TEM imaging. Numerical calculations based on real material-specific parameters well reproduced the experimental results, showing that the magnetic objects can be attributed to integral magnetizations of two types of complex three-dimensional(3D) magnetic bubbles with depth-modulated spin twisting. Magnetic configurations obtained using the high-resolution TEM are generally considered as two-dimensional(2D)magnetic objects previously. Our results imply the importance of the integral magnetizations of underestimated 3D magnetic structures in 2D TEM magnetic characterizations. | Jin Tang Yaodong Wu Lingyao Kong Weiwei Wang Yutao Chen Yihao Wang Y.Soh Yimin Xiong Mingliang Tian Haifeng Du | 2021 | National Science Review2021，8，6： | 2 |
| 2 | Coordination engineering of cobalt phthalocyanine by functionalized carbon nanotube for efficient and highly stable carbon dioxide reduction at high current density显示文摘Coordination engineering can enhance the activity and stability of the catalyst in heterogeneous catalysis.However,the axial coordination engineering between different groups on the carbon carrier and molecular catalysts in the electrocatalytic carbon dioxide reduction reaction(CO_(2)RR)has been studied rarely.Through coordination engineering strategy,a series of amino(NH_(2)),hydroxyl(OH),and carboxyl(COOH)groups functionalized carbon nanotubes(CNT)immobilized cobalt phthalocyanine(CoPc)catalysts are designed.Compared with no groups,OH groups and COOH groups,NH_(2)groups can effectively change the coordination environment of the central metal Co,thereby significantly increasing the turnover frequency(TOF)(31.4 s^(-1)at-0.6 V vs.RHE,CoPc/NH_(2)-CNT>CoPc/OH-CNT>CoPc/COOH-CN>CoPc/CNT).In the flow cell,the CoPc/NH_(2)-CNT catalyst has high carbon monoxide(CO)selectivity at high current density(~100%at-225 mA·cm^(-2),~96%at-351 mA·cm^(-2)).Importantly,the CoPc/NH_(2)-CNT catalyst can operate stably for 100 h at 225 mA·cm^(-2).Theoretical calculations reveal that CoPc/NH_(2)-CNT catalyst is beneficial to the formation of^(*)COOH and desorption of^(*)CO,thus promoting CO_(2)RR.This work provides an excellent platform for understanding the effect of coordination engineering on electrocatalytic performance and promotes a way to explore efficient and stable catalysts in other applications. | Hongdong Li Yue Pan Zuochao Wang Yaodong Yu Juan Xiong Haoyang Du Jianping Lai Lei Wang Shouhua Feng | 2022 | Nano Research2022，15，4： | 2 |
| 3 | Changes of citrus climate risk in subtropics of China显示文摘基于柠檬温度,降水,日光和气候风险度,文章把中国的画热带划分成三种类型:低风险区域,中等风险区域和高度冒险区域。柠檬温度风险与增加纬度增加(除了中国的画热带的西方的多山的区域) 。在中国的画热带的中央部分的柠檬降水风险在北、西方的部分比那高。柠檬日光风险的分布不对柠檬降水风险的那些一致。柠檬气候风险被温度主要影响。为气候风险的分发有纬度的带的法律,也就是说,气候风险与增加纬度增加。同时在多山的区域的气候风险在东方平凡区域是高度和那是低的。在柠檬气候的时间、空间的变化有差别。在里面最近 46 年,柠檬气候风险在中国的画热带介绍一个渐渐的增加趋势,自从 1980 年代,特别,它快一直在增加。因为全球温暖,然而,在东方、南部的部分的低风险区域有一个渐渐的减少趋势在北、西方的部分的高风险区域有一个增加的趋势和高风险区域一直在延长东方、向南方。文章分析减小率的柠檬气候风险度的分发 >10% , >20% 并且 >30% 在中国,和研究的画热带他们在不同时间时期的变化。结果证明风险从东南正在增加到西北。 | DUAN Hailai QIAN Huaisui LI Mingxia DU Yaodong | 2010 | Journal of Geographical Sciences2010，20，6： | 2 |
| 4 | Effect of amorphous grain boundaries on the magnetic properties of B-rich nanocomposite permanent magnets 显示文摘 | Li Shandong Dai Yaodong Du Youwei Gu B X Tian Zongjun | 2002 | Journal of Alloys and Compounds2002，339，： | 1 |
| 5 | Ambient Temperature and Years of Life Lost:A National Study in China显示文摘Although numerous studies have investigated premature deaths attributable to temperature,effects of temperature on years of life lost(YLL)remain unclear.We estimated the relationship between temperatures and YLL,and quantified the YLL per death caused by temperature in China.We collected daily meteorological and mortality data,and calculated the daily YLL values for 364 locations(2013–2017 in Yunnan,Guangdong,Hunan,Zhejiang,and Jilin provinces,and 2006–2011 in other locations)in China.A time-series design with a distributed lag nonlinear model was first employed to estimate the location-specific associations between temperature and YLL rates(YLL/100,000 population),and a multivariate meta-analysis model was used to pool location-specific associations.Then,YLL per death caused by temperatures was calculated.The temperature and YLL rates consistently showed U-shaped associations.A mean of 1.02(95%confidence interval:0.67,1.37)YLL per death was attributable to temperature.Cold temperature caused 0.98 YLL per death with most from moderate cold(0.84).The mean YLL per death was higher in those with cardiovascular diseases(1.14),males(1.15),younger age categories(1.31 in people aged 65–74 years),and in central China(1.34)than in those with respiratory diseases(0.47),females(0.87),older people(0.85 in people R75 years old),and northern China(0.64)or southern China(1.19).The mortality burden was modified by annual temperature and temperature variability,relative humidity,latitude,longitude,altitude,education attainment,and central heating use.Temperatures caused substantial YLL per death in China,which was modified by demographic and regional characteristics. | Tao Liu Chunliang Zhou Haoming Zhang Biao Huang Yanjun Xu Lifeng Lin Lijun Wang Ruying Hu Zhulin Hou Yize Xiao Junhua Li Xiaojun Xu Donghui Jin Mingfang Qin Qinglong Zhao Weiwei Gong Peng Yin Yiqing Xu Jianxiong Hu Jianpeng Xiao Weilin Zeng Xing Li Siqi Chen Lingchuan Guo Zuhua Rong Yonghui Zhang Cunrui Huang Yaodong Du Yuming Guo Shannon Rutherford Min Yu Maigeng Zhou Wenjun Ma | 2021 | The Innovation2021，2，1： | 1 |
| 6 | Current-driven transformations of a skyrmion tube and a bobber in stepped nanostructures of chiral magnets显示文摘Magnetic skyrmion tubes and bobbers are two types of different nanoscale spin configurations that can coexist in nanostructures of chiral magnets.They are then proposed to be utilized as binary bits to build racetrack memory devices.The ability to manipulate the two magnetic objects controllably by current in nanostructures is the prerequisite to realize the device.Here,we demonstrate by numerical simulations that a magnetic bobber and a skyrmion tube can be transformed to each other using spinpolarized current in nanostripes with stepped shape.We also show such stepped nanostructures can be readily applied as the write head for the skyrmion-bobber-based racetrack memory. | Jin Zhu YaoDong Wu QiYang Hu LingYao Kong Jin Tang MingLiang Tian HaiFeng Du | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，2： | 0 |
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