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高氯土壤条件下烤烟对Cl~–通道抑制剂的生理响应

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植物营养与肥料学报 2017年第2期23卷 460-467页

作者：商静许嘉阳范艺宽黄五星许自成河南农业大学烟草学院河南郑州450002 中国农业大学农学与生物技术学院北京100193 河南省烟草公司烟草研究所河南郑州472000

【目的】在我国部分烟区,土壤氯离子含量高是造成烟叶氯离子含量高的一个主要因素,困扰着当地优质烟草的生产。研究氯离子通道抑制剂对烤烟成熟期叶片生理指标的影响,可为生产中合理降氯提供一定的参考。【方法】2015年在河南科技大学... 详细信息

【目的】在我国部分烟区,土壤氯离子含量高是造成烟叶氯离子含量高的一个主要因素,困扰着当地优质烟草的生产。研究氯离子通道抑制剂对烤烟成熟期叶片生理指标的影响,可为生产中合理降氯提供一定的参考。【方法】2015年在河南科技大学采用盆栽土培试验,设置四个处理,分别为200μmol/L NFA、200μmol/L9-AC、200μmol/L Zn2+和蒸馏水,土壤含氯量为50 mg/kg。于移栽后30、45、60、75 d灌根,每个处理每次每盆灌1 L,连灌3天。测定了成熟期烤烟中部功能叶片中的CLC-Nt2基因表达强度、光合色素含量、叶绿素荧光参数、相关元素积累量以及烟株生物量。【结果】1)与对照相比,施用抑制剂Zn2+、NFA、9-AC的烟株叶片中CLC-Nt2的表达量显著降低,分别为对照的82.22%、75.39%、72.19%,但3组抑制剂处理之间无显著差异。2)Zn2+、NFA、9-AC处理的叶片叶绿素总含量较对照分别增加20.15%、29.10%、45.52%,差异达到显著水平。同时,经不同抑制剂处理的叶片叶绿素荧光特性也表现出不同程度的增加,表明抑制剂可以减缓氯含量对烤烟PSⅡ光合机构的伤害。3)抑制剂对烤烟叶片中Cl–、K+、NO3–的积累有明显影响。与对照相比,抑制剂处理的3组叶片中Cl–含量显著降低,降幅在18.17%~33.48%;K+含量和NO3–含量明显提高,增幅分别为5.28%~10.20%和12.19%~25.24%,其中以9-AC处理的效果最佳。4)抑制剂对烤烟生物量的合成有促进作用。与对照相比,施用抑制剂后烟株叶、茎、总干重显著提高,增幅分别为17.02%~32.45%、10.54%~20.66%和13.21%~25.50%;而根干重增加幅度较小,仅为5.94%~11.43%,根冠比显著降低。抑制剂的作用效果表现为9-AC>NFA>Zn2+>CK。【结论】当植烟土壤中氯离子含量较高时,外施氯离子通道抑制剂能够对烤烟植株生长及体内一系列生理活动产生积极作用,在一定程度上缓解了氯害对烟草的不利影响。在本试验条件下,施用200μmol/L 9-AC的烟株整体表现最优,而施用200μmol/L Zn2+的处理在基本满足降低叶片氯离子含量的同时降低了生产成本,这为生产中合理降氯提供了一定的参考。

关键词： Cl^–通道抑制剂烤烟生理响应

Recent Advances in Fibrous Materials for Hydroelectricity Generation

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Nano-Micro Letters 2025年第2期17卷 109-133页

作者： Can Ge Duo xu Xiao Feng Xing yang Zheheng Song Yuhang Song Jingyu Chen Yingcun Liu Chong Gao Yong Du Zhe Sun Weilin xu jian Fang College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123People’s Republic of China National Engineering Laboratory for Modern Silk Soochow UniversitySuzhou 215123People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Department of Electrical and Computer Engineering University of MassachusettsAmherstMA 01003USA Department of Materials Imperial College LondonSouth Kensington CampusLondon SW72AZUK College of Textile Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China School of Materials Science and Engineering Shanghai Institute of Technology100 Haiquan RoadShanghai 201418People’s Republic of China

Depleting fossil energy sources and conventional polluting power generation pose a threat to sustainable *** generation from ubiquitous and spontaneous phase transitions between liquid and gaseous water has been considered a promising strategy for mitigating the energy *** materials with unique flexibility,processability,multifunctionality,and practicability have been widely applied for fibrous materials-based hydroelectricity generation(FHG).In this review,the power generation mechanisms,design principles,and electricity enhancement factors of FHG are first ***,the fabrication strategies and characteristics of varied constructions including 1D fiber,1D yarn,2D fabric,2D membrane,3D fibrous framework,and 3D fibrous gel are ***,the advanced functions of FHG during water harvesting,proton dissociation,ion separation,and charge accumulation processes are analyzed in ***,the potential applications including power supply,energy storage,electrical sensor,and information expression are also ***,some existing challenges are considered and prospects for future development are sincerely proposed.

关键词： Hydroelectricity Fibrous material Streaming potential Ion diffusion

Einstein Probe discovery of EP240408a: A peculiar X-ray transient with an intermediate timescale

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 222-240页

作者： Wenda Zhang Weimin Yuan Zhixing Ling Yong Chen Nanda Rea Arne Rau Zhiming Cai Huaqing Cheng Francesco Coti Zelati Lixin Dai Jingwei Hu Shumei jia Chichuan Jin Dongyue Li Paul O’Brien Rongfeng Shen Xinwen Shu Shengli Sun Xiaojin Sun Xiaofeng Wang Lei yang Bing Zhang Chen Zhang Shuang-Nan Zhang Yonghe Zhang Jie An David Buckley Alexis Coleiro Bertrand Cordier Liming Dou Rob Eyles-Ferris Zhou Fan Hua Feng Shaoyu Fu Johan P.U.Fynbo Lluis Galbany Saurabh W.Jha Shuaiqing jiang Albert Kong Erik Kuulkers Weihua Lei Wenxiong Li Bifang Liu Mingjun Liu Xing Liu Yuan Liu Zhu Liu Chandreyee Maitra Alessio Marino Itumeleng Monageng Kirpal Nandra Jeremy Sanders Roberto Soria Lian Tao Junfeng Wang Song Wang Tinggui Wang Zhongxiang Wang Qingwen Wu xuefeng Wu Dong xu Yanjun xu Suijian xue Yongquan xue Zijian Zhang Zipei Zhu Hu Zou Congying Bao Fansheng Chen Houlei Chen Tianxiang Chen Wei Chen Yehai Chen Yifan Chen Chenzhou Cui Weiwei Cui Yanfeng Dai Dongwei Fan Ju Guan Dawei Han Dongjie Hou Haibo Hu Maohai Huang jia Huo Zhenqing jia Bowen jiang Ge Jin Chengkui Li Junfei Li Longhui Li Maoshun Li Wei Li Zhengda Li Tianying Lian Congzhan Liu Heyang Liu Huaqiu Liu Fangjun Lu Laidan Luo jia Ma xuan Mao Haiwu Pan Xin Pan Liming Song Hui Sun Yunyin Tan Qingjun Tang Yihan Tao Hao Wang Juan Wang Lei Wang Wenxin Wang Yilong Wang Yusa Wang Qinyu Wu Haitao xu Jingjing xu Xinpeng xu Yunfei xu Zhao xu Changbin xue Yulong xue Ailiang Yan Haonan yang Xiongtao yang Yanji yang Juan Zhang Mo Zhang Wenjie Zhang Zhen Zhang Zhen Zhang Ziliang Zhang Donghua Zhao Haisheng Zhao Xiaofan Zhao Zijian Zhao Hongyan Zhou Yilin Zhou Yuxuan Zhu Zhencai Zhu National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Sciences University of Chinese Academy of Sciences Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Institute of Space Sciences (ICE) CSIC Institut d’Estudis Espacials de Catalunya (IEEC) Max Planck Institute for Extraterrestrial Physics Innovation Academy for Microsatellites Chinese Academy of Sciences Department of Physics University of Hong Kong School of Physics and Astronomy University of Leicester School of Physics and Astronomy Sun Yat-sen University Department of Physics Anhui Normal University Shanghai Institute of Technical Physics Chinese Academy of Sciences Physics Department Tsinghua University Nevada Center for Astrophysics University of Nevada Las Vegas Department of Physics and Astronomy University of Nevada Las Vegas South African Astronomical Observatory Department of Astronomy University of Cape Town Department of Physics University of the Free State Université Paris Cité CNRS Astroparticule et Cosmologie Université Paris Cité CEA Paris-Saclay IRFU/DAp-AIM Department of Astronomy Guangzhou University Cosmic Dawn Center (DAWN) Niels Bohr Institute University of Copenhagen Department of Physics and Astronomy Rutgers the State University of New Jersey Institute for Cosmic Ray Research The University of Tokyo ESA/ESTEC Department of Astronomy School of Physics Huazhong University of Science and Technology INAF-Osservatorio Astrofisico di Torino Sydney Institute for Astronomy School of Physics The University of Sydney Department of Astronomy Xiamen University Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University Department of Astronomy University of Science and Technology School of Astronomy and Space Sciences University of Science and Technology of China Institute of Deep Space Sciences Deep Space Exploration Laboratory Department of Astronomy School of Physics and Astronomy Yunnan University Shanghai Astronomical Observatory Chi

We report the discovery of a peculiar X-ray transient,EP240408a,by Einstein Probe （EP） and follow-up studies made with EP,Swift,NICER,GROND,ATCA and other ground-based multiwavelength *** new transient was first detected with Wide-field X-ray Telescope （WXT） on board EP on April 8th,2024,manifested in an intense yet brief X-ray flare lasting for *** flare reached a peak flux of 3.9×10-9erg cm-2s-1in 0.5-4 ke V,～300 times brighter than the underlying X-ray emission detected throughout the *** and more precise follow-up observations by EP/FXT,Swift and NICER confirmed the finding of this new *** X-ray spectrum is non-thermal in 0.5-10 ke V,with a power-law photon index varying *** X-ray light curve shows a plateau lasting for ～4 d,followed by a steep decay till becoming undetectable ～10 d after the initial *** on its temporal property and constraints from previous EP observations,an unusual timescale in the range of 7-23 d is found for EP240408a,which is intermediate between the commonly found fast and long-term *** counterparts have been found in optical and near-infrared,with the earliest observation at 17 h after the initial X-ray detection,suggestive of intrinsically weak emission in these *** demonstrate that the remarkable properties of EP240408a are inconsistent with any of the transient types known so far,by comparison with,in particular,jetted tidal disruption events,gamma-ray bursts,X-ray binaries and fast blue optical *** nature of EP240408a thus remains an *** suggest that EP240408a may represent a new type of transients with intermediate timescales of the order of～10 *** detection and follow-ups of more of such objects are essential for revealing their origin.

关键词： X-ray transients ${\bm~{Einstein~~Probe}}$

Advanced Functional Electromagnetic Shielding Materials:A Review Based on Micro‑Nano Structure Interface Control of Biomass Cell Walls

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Nano-Micro Letters 2025年第1期17卷 98-134页

作者： yang Shi Mingjun Wu Shengbo Ge jianzhang Li Anoud Saud Alshammari Jing Luo Mohammed A.Amin Hua Qiu Jinxuan jiang Yazeed M.Asiri Runzhou Huang Hua Hou Zeinhom M.El‑Bahy Zhanhu Guo Chong jia Kaimeng xu Xiangmeng Chen Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037People’s Republic of China State Key Laboratory of Efficient Production of Forest Resourced Beijing Forestry UniversityQinghua East Road 35Haidian DistrictBeijing 100083People’s Republic of China Department of Physics Faculty of Sciences‑ArarNorthern Border UniversityArar 91431Saudi Arabia Department of Chemistry College of ScienceTaif UniversityP.O.Box 1109921944 TaifSaudi Arabia Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’anShaanxi 710072People’s Republic of China Integrated Composites Lab Department of Mechanical and Construction EngineeringNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024People’s Republic of China Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr CityCairo 11884Egypt Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products International Joint Research Center for Biomass MaterialsSouthwest Forestry UniversityKunming 650224People’s Republic of China School of Science Henan Agricultural UniversityZhengzhou 450002People’s Republic of China

Research efforts on electromagnetic interference(EMI)shielding materials have begun to converge on green and sustainable biomass *** materials offer numerous advantages such as being lightweight,porous,and *** to their porous nature,interfacial compatibility,and electrical conductivity,biomass materials hold significant potential as EMI shielding *** concerted efforts on the EMI shielding of biomass materials have been reported,this research area is still relatively new compared to traditional EMI shielding *** particular,a more comprehensive study and summary of the factors influencing biomass EMI shielding materials including the pore structure adjustment,preparation process,and micro-control would be *** preparation methods and characteristics of wood,bamboo,cellulose and lignin in EMI shielding field are critically discussed in this paper,and similar biomass EMI materials are summarized and *** composite methods and fillers of various biomass materials were *** paper also highlights the mechanism of EMI shielding as well as existing prospects and challenges for development trends in this field.

关键词： Biomass materials Electromagnetic interference shielding Micro-nano structure interface control Conductivity

SMS-WARMS V2.0模式预报效果检验

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气象 2016年第10期42卷 1176-1183页

作者：徐同李佳杨玉华王晓峰陈葆德中国气象局上海台风研究所上海200030 中国气象局台风数值预报重点实验室上海200030

对新一代上海区域中尺度模式(SMS—WARMS V2.0)系统预报结果进行了统计检验,检验量包括降水、2 m温度场、10 m风速、500 hPa位势高度场和850 hPa温度场、风场和相对湿度。结果表明:新一代模式的预报性能得到明显改善,模式各量级降水的TS... 详细信息

对新一代上海区域中尺度模式(SMS—WARMS V2.0)系统预报结果进行了统计检验,检验量包括降水、2 m温度场、10 m风速、500 hPa位势高度场和850 hPa温度场、风场和相对湿度。结果表明:新一代模式的预报性能得到明显改善,模式各量级降水的TS和ETS评分都有提高,说明模式对降水事件发生的捕捉能力进一步增强了。分析2 m温度场的均方根误差及预报准确率发现新版业务模式的2 n、温度场预报优于原业务模式。此外新业务模式的10 m风速预报的均方根误差的逐月和多月平均值都低于原业务模式。高空形势场检验结果显示,新业务模式埘500 hPa位势高度场和850 hPa温度场的预报都优于原业务模式,850 hPa风场预报相关系数高于原业务模式,850 hPa相对湿度提高不明显。个例分析表明,新版业务模式强降水预报产品相对于原业务模式产品埘大气预报更具参考价值。

关键词： SMS-WARMS V2.0模式预报检验

Engineering of Fe d-band center in Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles via orbital coupling for high-efficiency oxygen reduction electrocatalysis

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Nano Research 2025年第1期18卷 129-139页

作者： jiayi Liu Jingwen Yin Yingzi Lin Mingxin Pang Huan Pang Songtao Zhang Lin xu Jun yang Yawen Tang jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023Chin a 2 State Key Laboratory of Multiphase Complex Systems Center of MesoscienceInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Testing Center Yangzhou UniversityYangzhou 225009China

The deliberate engineering of the d-band center of metal site represents an effective strategy to boost the intrinsic electrocatalytic performance toward the oxygen reduction reaction(ORR).Herein,following a heterointerfaceinduced orbital coupling rationale,we report a judicious design of an efficient ORR electrocatalyst consisting of Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles in-situ encased into N-doped carbon nanofibers(abbreviated as Fe_(3)O_(4)/CeO_(2)@N-CNFs hereafter).The theoretic calculations uncover that the Fe_(3)O_(4)/CeO_(2)heterointerface-triggered orbital coupling can cause the down shift of the d-band center positions of Fe sites,which leads to the weakened chemisorption of oxygenated groups and lowered energy barrier for the potential-determining step,ultimately dramatically boosting the ORR intrinsic *** a consequence,the well-designed Fe_(3)O_(4)/CeO_(2)@N-CNFs display admirable ORR activity with a half-wave potential of 0.84 V and outstanding structural/electrochemical stability in an alkaline electrolyte,surpassing the commercial Pt/C benchmark and a majority of recently reported Fe_(3)O_(4)-based *** encouragingly,the Fe_(3)O_(4)/CeO_(2)@N-CNFsincorporated Zn-air battery outperforms the Pt/C-assembled counterpart with higher power density,larger energy density,and excellent cycling stability,serving as a competent candidate for ORR-involved renewable energy *** study offers an innovative approach for the rational manipulation of the d-band center and interfacial electron behavior of active sites toward the optimization of electrocatalytic performance.

关键词： hetero-nanoparticles electrospinning interfacial engineering orbital coupling oxygen reduction reaction

DeepFlame:基于深度学习和高性能计算的反应流模拟开源平台

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计算机工程与科学 2024年第11期46卷 1901-1907页

作者：毛润泽吴子恒徐嘉阳章严陈帜北京大学工学院北京100871 北京科学智能研究院北京100083 中物院高性能数值模拟软件中心北京100088

近年来,深度学习被广泛认为是加速反应流模拟的一种可靠方法。近期开发了一个名为DeepFlame的开源平台,可以在模拟反应流过程中实现对机器学习库和算法的支持。基于DeepFlame,成功地采用深度神经网络来计算化学反应源项,并对DeepFlame... 详细信息

近年来,深度学习被广泛认为是加速反应流模拟的一种可靠方法。近期开发了一个名为DeepFlame的开源平台,可以在模拟反应流过程中实现对机器学习库和算法的支持。基于DeepFlame,成功地采用深度神经网络来计算化学反应源项,并对DeepFlame平台进行了高性能优化。首先,为了充分发挥深度神经网络(DNN)的加速潜力,研究实现了DeepFlame对DNN多卡并行推理的支持,开发了节点内分割算法和主从通信结构,并完成了DeepFlame向图形处理单元(GPU)和深度计算单元(DCU)的移植。其次,还基于Nvidia AmgX库在GPU上实现了偏微分方程求解和离散稀疏矩阵构造。最后,对CPU-GPU/DCU异构架构上的新版本DeepFlame的计算性能进行了评估。结果表明,仅利用单个GPU卡,在模拟具有反应性的泰勒格林涡(TGV)时可以实现的最大加速比达到15。

关键词：计算流体力学反应流动深度神经网络 GPU 偏微分方程

Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： Li xu Huiming xu Changyong Tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

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基因型和环境条件对烤烟叶形性状的影响

江西农业学报 2015年第8期27卷 76-79页

作者：贾健许嘉阳卢秀萍许仪王蒙蒙许自成河南农业大学烟草学院河南郑州450002 华中农业大学资源与环境学院湖北武汉430070 云南省烟草农业科学研究院云南玉溪653100 河南省烟草公司济源市公司河南济源454650

研究了不同基因型、年份、地点、土壤类型及前作等因素对烤烟叶形性状的影响。结果表明,各因素之间叶形性状都存在着极显著差异。品种间叶形性状聚类分析结果表明,叶形性状在品种群间的差异达极显著水平,其中,第Ⅰ类品种的叶数显著多于... 详细信息

研究了不同基因型、年份、地点、土壤类型及前作等因素对烤烟叶形性状的影响。结果表明,各因素之间叶形性状都存在着极显著差异。品种间叶形性状聚类分析结果表明,叶形性状在品种群间的差异达极显著水平,其中,第Ⅰ类品种的叶数显著多于其它两类,但腰叶最短、最窄;第Ⅲ类品种的腰叶显著大于其它类群。在试验年份内,以2013年平均单株有效叶数最多;腰叶长、宽平均值均以2011年最大,并且与其它各年度腰叶长、宽的差异都达到了5%显著水平。昆明地区单株叶数最多,并且显著多于其它各点;昭通种植点腰叶长、宽平均值最大,而且与其它各点的差异均达显著水平。红壤土种植的烤烟单株有效叶数最多;而黄壤土种植的烤烟腰叶长、宽最大。就不同前茬来说,以蚕豆为前作时,烟株叶形性状表现最好,而烤烟连作时单株叶数最少。

关键词：烤烟叶形性状基因型环境因素