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Journal of Hydrodynamics 2019年第2期31卷 231-248页

作者： Da-peng Zhang yu-zhu chen Xi-lin Xie Department of Aeronautics and Astronautics Fudan UniversityShanghai 200433China

A method based on decomposition of acceleration field and Lie derivative is introduced to identify shearing and rotational *** method is validated on two typical kinds of model *** dynamics of flow around bluff body is studied,illustrated by numerical examples of flow around an elliptic cylinder,a slanted elliptic cylinder and an elliptic cylinder with a pair of bumps on the front *** explain the generation of vortical structures and how they evolve into inner flow field,boundary vorticity dynamics analysis is *** vorticity flux as well as the enstrophy diffusion flux creates vorticity sources and vorticity sinks,which generate or consume boundary vorticity,then shearing layers are generated and interact with each other finally create *** results provide potential in accurate flow control by boundary deformation,and show that relevant theoretical conclusions can be effectively applied in revealing the flow mechanisms.

关键词： Boundary vorticity dynamics large-scale structures Lie derivative

Assessment of shallow groundwater vulnerability in Dahei River Plain based on AHP and DRASTIC

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Journal of Groundwater Science and Engineering 2017年第3期5卷 266-277页

作者： zhu yu-chen ZHANG Yi-long HAO Qi-chen Institute of Hydrogeology and Environmental Geology Chinese Academy of Geosciences Shijiazhuang 050061 China

Based on the special hydrogeological conditions of the Dahei River Plain in the Inner Mongolia area, assessment of shallow groundwater vulnerability is conducted based on DRASTIC model. Each evaluation indicator weight is determined by using analytic hierarchy process(AHP). The most important indicators are lithology in soil media and vadose zone. Assessment model of shallow groundwater vulnerability of the Dahei River plain is constructed. Distribution map of vulnerability index in this area is made with the spatial analysis function of ARCGIS. The results show that the particularly sensitive area is the piedmont of the Daqing Mountain, where the upstream place of the groundwater and the south-central place of the plain has the lowest vulnerability. The assessment results are more in accordance with the actual vulnerability conditions of this area by using analytic hierarchy process, and is helpful for groundwater protection.

关键词： Groundwater vulnerability DRASTIC model AHP Dahei River Plain ARCGIS

Brain mechanism of acupuncture for children with anisometropic amblyopia: a resting functional magnetic resonance imaging study based on voxel-mirrored homotopic connectivity

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International Journal of Ophthalmology(English edition) 2024年第2期17卷 339-347页

作者： Jue Wang Jing Jia Yan Sun Chong-Bing Ma yu-zhu chen An-Guo Liu Xing-Ke Yan College of Acupuncture-Moxibustion and Tuina Gansu University of Chinese MedicineLanzhou 730101Gansu ProvinceChina Department of Ophthalmology Lanzhou Purui Ophthalmology HospitalLanzhou 730050Gansu ProvinceChina

AIM:To explore the brain mechanism of acupuncture for children with anisometropic amblyopia using the voxelmirror homotopic connectivity(VMHC)analysis method of resting functional magnetic resonance imaging(rs-fMRI)technology based on clinical ***:Eighty children with anisometropic monocular amblyopia were randomly divided into two groups:control(40 cases,1 case of shedding)and acupuncture(40 cases,1 case of shedding)*** control group was treated with glasses,red flash,grating,and visual stimulations,with each procedure conducted for 5min per *** on routine treatment,the acupuncture group underwent acupuncture of“regulating qi and unblocking meridians to bright eyes”,Jingming(BL1),Cuanzhu(BL2),Guangming(GB37),Fengchi(GB20)acupoints were taken on both sides,with the needle kept for 30min each *** groups were treated once every other day,three times per week,for a total of *** the treatment,the overall curative effect of the two groups and the latency and amplitude changes of P100 wave of pattern visual-evoked potential were *** the same time,nine children with left eye amblyopia were randomly selected from the two groups and were scanned with rsfMRI before and after *** differences in the brain regions between the two groups were compared and analyzed with ***:Chi-square test showed a notable difference in the total efficiency rate between the acupuncture(94.87%)and control groups(79.49%).Regarding the P100 wave latency and amplitude,the acupuncture group had significantly shorter latency and higher amplitude of P100 wave than the control ***,the VMHC values of the bilateral temporal lobe,superior temporal gyrus,and middle temporal gyrus were notably increased in the acupuncture group after ***:Acupuncture combined with conventional treatment can significantly improve the corrected visual acuity and optic nerve conduction in children with anisometropic ***

关键词： resting functional magnetic resonance imaging voxel-mirror homotopy connection anisometropic amblyopia acupuncture

Disabled Woman Heads Beijing Fans Association

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Women of China 1995年第3期 41-42页

作者： zhu yu chen SHANSHAN

THE next time you go to a football match in Beijing, look around the edge of the field. You might see a young woman in a wheelchair cheering her favorite team. Wu Jinghong is more than a handicapped person, more than a woman football fan. She is the head of the Beijing Football Fans Association, a group more than 1,000 members strong. Wu alone started the association in 1988 and because she is a woman, encouraged other women fans to openly support their favorite teams.

关键词： more head than

Cu^(2+)-Assisted Synthesis of Au@AgI Core/Shell Nanorods via In Situ Oxidation of Iodide:A Strategy for Colorimetric Iodide Sensing

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Journal of Analysis and Testing 2022年第4期6卷 374-381页

作者： Zhi-Xiong Cai yu-zhu chen Benjamin Edem Meteku Qiao-Wen Zheng Fei-Ming Li Mao-Sheng Zhang Jing-Bin Zeng Xi chen College of Chemistry and Environment Fujian Provincial Key Laboratory of Modern Analytical Science and Separation TechnologyMinnan Normal UniversityZhangzhou363000China College of Chemistry and Chemical Engineering China University of Petroleum(East China)Qingdao266580China Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China

Colorimetric nanoprobes are frequently employed to construct sensitive sensors via various *** this work,a novel strategy for simple and ultrasensitive sensing of iodide(I_(−))was constructed based on Cu^(2+)-assisted generation of Au@AgI core/shell nanorods(NRs),by etching silver-coated gold nanorods(Ag@Au NRs).Ag@Au NRs were first prepared and characterized with UV-visible spectroscopy,transmission electron microscopy,high-angle annular dark-field scanning transmission electron microscopy,and energy-dispersive X-ray spectroscopy before and after iodide *** mechanism of detection was based on the generation of AgI shells via etching Ag shells by I_(2),which was produced from the oxidation of I_(−)with Cu^(2+),resulting in the peak shift of localized surface plasmon resonance(LSPR)while the color changed from green,blue to *** red-shift of the longitudinal LSPR peak had a linear relationship with I_(−)concentration in the range of 0-50μmol/L with a correlation coefficient of ***,the proposed method was used for the quantitative detection of I_(−)in real samples and outstanding recoveries in the range of 91-106%with relative standard deviations lower than 2.5%were observed.

关键词： Colorimetry Core/shell nanorods Iodide sensing

On the True Face of the Economic Statistics

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Journal of Mathematics and System Science 2014年第7期4卷 472-478页

作者： zhu yu chen Xiaoru Wang Lei Xi'an University of Finance and Economics Xi'an China

In 2012, China National Ministry of Education issued a new undergraduate course catalog, economic statistics to be classified as a second level discipline of applied economics. However, what specific content should be included in the second level discipline has become a very important issue. What should be taught to students or how can they adapt to the needs of the social market aroused a wide attention. For this case, the National Ministry of Education has given a clearly provision for economic statistics＇ core courses, but whether these main courses can reflect the actual needs and characteristics of economic statistics or not still needs some considerations and discussions. This article started from the angle of the studies on China and the U.S. Journals concerning economic statistics. Using text mining by R, a recent mainstream statistical analysis software, gives a comparative analysis on the contents of economic statistics for recent decades. We created wordcloud about the contents of core statistical journals by R which can help us visually examine the course of economic statistics discipline development for the comparative study. Besides, we drew a conclusion that there were significant differences between China and America＇s economic statistics, the main difference is the United States pay more attention to the exploration of new methods and be able to adapt to market demand, the development of China＇s economic statistics are still more traditional, it need a better understanding of the multi-disciplinary knowledge of education, such as Bayesian and dynamics. Another is that the curriculum of China＇s economic statistics are corrected for China＇s actual situation, a new training program pay more attention to students＇ practical ability and social practice. There are a lot of practical problems remain untouched or unsolved which need efforts of decades probably.

关键词： Economic statistics text mining word cloud comparative analysis

Fabrication of carbon-supported Al2O3 nanoparticles via spontaneous cross-linking to enhance selective hydrogenation of furfural

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Journal of Energy Chemistry 2025年第1期100卷 612-620页

作者： Weiwei yu Xinbao Zhang Hongyu chen Yanan Wang Shaoguo Li Fucun chen Zhenni Liu Xiujie Li Xiangxue zhu State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Selective hydrogenation of furfural to furfuryl alcohol is a great challenge in the hydrogenation field due to thermodynamic preference for hydrogenation of C=C over C=***,a novel Al2O3/C-u hybrid catalyst,composed of N-modified dendritic carbon networks supporting Al2O3nanoparticles,was successfully prepared via carbonizing the freeze-dried gel from spontaneous cross-linking of alginate,Al3+and *** obtained carbon-supported Al2O3hybrid catalyst has a high ratio （31%） of Al species in pentahedral-coordinated *** introduction of urea enhances the surface N content,the ratio of pyrrolic N,and specific surface area of catalyst,leading to improved adsorption capacity of C=O and the accessibility of active *** the furfural hydrogenation reaction with isopropyl alcohol as hydrogen donor,Al2O3/C-u catalyst achieved a 90%conversion of furfural with 98.0% selectivity to furfuryl alcohol,outperforming that of commercial γ-***,Al2O3/C-u demonstrates excellent catalytic stability in the recycling tests attributed to the synergistic effect of abundant weak Lewis acid sites and the anchoring effect of the carbon network on *** work provides an innovative and facile strategy for fabrication of carbon-supported Al2O3hybrid catalysts with rich AlVspecies,serving as a high selective hydrogenation catalyst through MPV reaction route.

关键词： Selective hydrogenation Furfural Furfuryl alcohol Cross-linking Carbon supported Al 2 O 3 MPV route

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被塑造的经典——清代文评专书中的归有光

求是学刊 2017年第2期44卷 131-138页

作者：诸雨辰北京师范大学文学院北京100875

归有光是清代文学评论中的焦点人物,其形象在清代学者的批评总结中完成了"经典化"的历程。清人对归有光的讨论大致延续钱谦益与王夫之的批评理路展开,重点关注了归有光文章的文辞与义理两个层面,而讨论的对象则是归有光的《史记》评点... 详细信息

归有光是清代文学评论中的焦点人物,其形象在清代学者的批评总结中完成了"经典化"的历程。清人对归有光的讨论大致延续钱谦益与王夫之的批评理路展开,重点关注了归有光文章的文辞与义理两个层面,而讨论的对象则是归有光的《史记》评点及其自身文学创作。在清代复杂的文学流派与文人群体论争中,归有光成为一个符号性的人物,其形象也不断地被重塑着。支持者赞其文法可学,反对者批其文章无道,而对其他问题则皆视而不见,彰显了文学经典化历程的曲折走向。

关键词：归有光经典化《史记》评点多维解读

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汉石的冲击:清代金石例研究的屈折与展开

北京社会科学 2019年第12期 26-36页

作者：诸雨辰北京师范大学文学院

金石例研究在清代形成高潮,短短几十年间相继产生了近十部著作。清人不满《金石三例》以唐宋碑志为例的做法,他们标举汉代石刻碑志,试图从中归纳碑版文原初的义例,却不断从汉石中发现变例,诸如书孙、生人作诔、称公、私谥、书卒葬等现象... 详细信息

金石例研究在清代形成高潮,短短几十年间相继产生了近十部著作。清人不满《金石三例》以唐宋碑志为例的做法,他们标举汉代石刻碑志,试图从中归纳碑版文原初的义例,却不断从汉石中发现变例,诸如书孙、生人作诔、称公、私谥、书卒葬等现象,都与唐宋以来的金石例不合。对此,王芑孙试图回归韩愈、欧阳修之例,而刘宝楠等人则从维护汉石的立场出发,以文史考证和道德人伦论证汉石的合法性。汉石的冲击使清代金石例研究在学术上获得了消解文道合一观念的理论新质,是乾嘉汉学思潮的一部分。

关键词：金石例汉石碑志文体正变

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乾嘉时期京城文人的都城体验与诗文书写

北京社会科学 2024年第10期 32-41页

作者：诸雨辰北京师范大学文学院

乾嘉时期的文学与思想转型是学界关注的热点。通过观察清中期文人的诗文书写,可注意到京城文人日常生活中奢侈与穷困的两极化处境,亦可发现文人参与修禊雅集与诗社雅集时所感受到的时间流逝的加速感与交往距离的隔膜感。前者源于京城景... 详细信息

乾嘉时期的文学与思想转型是学界关注的热点。通过观察清中期文人的诗文书写,可注意到京城文人日常生活中奢侈与穷困的两极化处境,亦可发现文人参与修禊雅集与诗社雅集时所感受到的时间流逝的加速感与交往距离的隔膜感。前者源于京城景观的变迁与宵禁制度,而后者则源于文物赏玩时视角的聚焦与价值排他性,二者共同造成了乾嘉京城文人的失落情绪。为了应对京城生活的压力与失落,文人不仅在诗文中咏叹遗迹、追忆前贤,更通过重建万柳堂、寄园等建筑实体与仪式活动,重塑文人的公共空间,以缓解文人在情感与身份认同上的焦虑。乾嘉文人的京城生活体验激发了他们时不我待的使命感与不服输的傲岸人格,这同样刺激了乾嘉时期文学及学术的发展与传承。

关键词：乾嘉时期京城文人心态雅集诗文书写