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Pedosphere 2011年第3期21卷 400-406页

作者： WANG Jie HUANG Yi jiang xue-yan College of Environmental Sciences and Engineering Peking University Beijing 100871 (China) School of Environment and Energy Peking University Shenzhen Graduate School Shenzhen 518055 (China)

Pinus tabulaeformis seedlings were grown under a factorial design to measure biomass accumulation and P, Na and K concentrations of plants, with 3 different ectomycorrhizal fungus (EMF) strains (Boletus edulis, Xerocomus chrysenteron and Gomphidius viscidus) and two P treatments (with or without extra P). Growth and mineral nutrition of pine seedlings were stimulated by three EMF under salinity stress. Na concentrations were changed and plant K and P concentrations were increased significantly by EMF. Adding extra P made no difference in accumulation of seedlings biomass, and did not assist element absorption of plants. Although three strains of EMF can all enhance the tolerance of pine seedlings to salinity stress, they may utilize different mechanisms because of different performance in absorption of elements. The increased P and K accumulation and the balance of ion concentrations might be due to the enhanced tolerance of EMF-inoculated plants to saline conditions.

关键词： afforestation ectomycorrhizae phosphorus deficiency potassium salinity stress

Accelerating water dissociation at carbon supported nanoscale Ni/NiO heterojunction electrocatalysts for high-efficiency alkaline hydrogen evolution

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Nano Research 2023年第4期16卷 4742-4750页

作者： Cong Li jiang-yan xue Wei Zhang Fei-Long Li Hongwei Gu Pierre Braunstein Jian-Ping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China School of Chemistry and Materials Engineering Changshu Institute of TechnologyChangshu 215500China Universitéde Strasbourg-CNRS Institut de Chimie(UMR 7177 CNRS)4 rue Blaise Pascal-CS 90032Strasbourg 67081France

The synergistic catalysis of heterojunction electrocatalysts for the multi-step process in hydrogen evolution reaction(HER)is a promising approach to enhance the kinetics of alkaline ***,we proposed a strategy to form nanoscale Ni/NiO heterojunction porous graphitic carbon composites(Ni/NiO-PGC)by reduction-pyrolysis of the preformed Ni-metal-organic framework(MOF)under H2/N2 *** from low electron transfer resistance,increased number of active sites,and unique hierarchical micro-mesoporous structure,the optimized Ni/NiO-PGC_(10-1-400)exhibited excellent electrocatalytic performance and robust stability for alkaline HER(η10=30 mV,65 h).Density functional theory(DFT)studies revealed that the redistribution of electrons at the Ni/NiO interface enables the NiO phase to easily initiate the dissociation of alkaline H_(2)O,and shifts down the d-band center of Ni and optimizes the H*adsorption-desorption process of Ni,thereby leading to extremely high HER *** work contributes to a further understanding of the synergistic promotion of the multi-step HER processes by heterojunction electrocatalysts.

关键词： water dissociation Ni/NiO heterojunction metal-organic frameworks(MOFs)derivatives hydrogen evolution reaction reduction pyrolysis

Ultralong nitrogen/sulfur Co-doped carbon nano-hollowsphere chains with encapsulated cobalt nanoparticles for highly efficient oxygen electrocatalysis

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Carbon Energy 2023年第8期5卷 15-30页

作者： Wei Zhang Xingmei Guo Cong Li jiang-yan xue Wan-Ying Xu Zheng Niu Hongwei Gu Carl Redshaw Jian-Ping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhouChina State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghaiChina College of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiangChina Department of Chemistry University of HullHullUK

The development of simple and effective strategies to prepare electrocatalysts,which possess unique and stable structures comprised of metal/nonmetallic atoms for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),is currently an urgent ***,an efficient bifunctional electrocatalyst featured by ultralong N,S-doped carbon nano-hollow-sphere chains about 1300 nm with encapsulated Co nanoparticles(Co-CNHSCs)is *** multifunctional catalytic properties of Co together with the heteroatom-induced charge redistribution(i.e.,modulating the electronic structure of the active site)result in superior catalytic activities toward OER and ORR in alkaline *** optimized catalyst Co-CNHSC-3 displays an outstanding electrocatalytic ability for ORR and OER,a high specific capacity of 1023.6 mAh gZn^(-1),and excellent reversibility after 80 h at 10mA cm^(-2)in a Zn-air battery *** work presents a new strategy for the design and synthesis of efficient multifunctional carbon-based catalysts for energy storage and conversion devices.

关键词： Co nanoparticles N S co-doping oxygen electrocatalysts rechargeable Zn-air batteries ultralong carbon nano-hollow-sphere chains

A hybrid catalyst for efficient electrochemical N_(2)fixation formed by decorating amorphous MoS_(3)nanosheets with MIL-101(Fe)nanodots

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Science China Chemistry 2022年第5期65卷 885-891页

作者： Wan-Ying Xu Cong Li Fei-Long Li jiang-yan xue Wei Zhang Hongwei Gu Brendan F.Abrahams Jian-Ping Lang College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China School of Materials Engineering Changshu Institute of TechnologyChangshu 215500China School of Chemistry University of MelbourneVictoria 3010Australia

Metal-organic frameworks possessing relatively large pores,high surface areas,and unsaturated metal sites are attractive materials for use as electrocatalysts in the reduction of N_(2)to NH_(3).In this work,a MIL-101(Fe)/MoS_(3)hybrid catalyst,prepared by using a precursor-transformation strategy,is shown to be an effective electrocatalyst for the N_(2)reduction reaction(NRR).Under solvothermal conditions,micro-sized octahedral MIL-101(Fe)precursors are converted into ultra-small nanodots,while amorphous MoS_(3)derived from(NH_(4))_(2)MoS_(4)provides a surface suitable for anchoring the MIL-101(Fe)*** asprepared composite exhibits excellent electrocatalytic activity and durability for the NRR with a Faraday efficiency of 36.71%and an NH_(3)yield of 25.7μg h^(-1)mg_(cat)^(-1)at-0.1 V *** in 0.1 M *** results show that the dispersion and adherence of MIL-101(Fe)nanodots on amorphous MoS_(3)improves the exposure of active centers and aids mass transfer,resulting in greatly enhanced catalytic activity and stability.

关键词： nitrogen reduction reaction MIL-101(Fe)nanodots amorphous MoS_(3) precursor-transformation hybrid electrocatalysts

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基于稳健性分析的汽车侧围成形过程缺陷改进

塑性工程学报 2020年第10期27卷 62-69页

作者：姜雪燕潍坊职业学院机电工程学院山东潍坊262737

采用稳健性分析综合考虑材料性能和润滑油质量等因素的影响,根据用户冲压缺陷数据统计,对侧围成形过程的6个危险区域进行应变测试分析,获取各区域的减薄率,判断是否满足安全裕度要求;基于Autoform建立侧围成形工艺过程有限元模型;采用SI... 详细信息

采用稳健性分析综合考虑材料性能和润滑油质量等因素的影响,根据用户冲压缺陷数据统计,对侧围成形过程的6个危险区域进行应变测试分析,获取各区域的减薄率,判断是否满足安全裕度要求;基于Autoform建立侧围成形工艺过程有限元模型;采用SIGMA模块开展危险区域稳健分析,分析零件各区域变形状态对材料性能参数波动的敏感性,获取危险区域的主要影响因素;根据稳健性分析结果,提出侧围成形过程中开裂和颈缩缺陷工艺改进方案。结果表明:B柱后下拐角处安全裕度为7%,容易发生开裂;摩擦系数和r值起主要作用,在成形因素中影响百分比占比较大;通过调整材料r值和成形过程的摩擦系数,可有效改进成形过程中的开裂和颈缩缺陷,实际冲压结果显示可以满足用户使用需求。

关键词：侧围成形工艺缺陷稳健性分析改进措施

分子空位缺陷对环三亚甲基三硝胺含能材料几何结构、电子结构及振动特性的影响

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物理学报 2015年第24期64卷 148-156页

作者：彭亚晶蒋艳雪渤海大学物理系锦州121013 中国科学院大连化学物理研究所分子反应动力学国家重点实验室大连116023

含能材料中的微观缺陷是导致"热点"形成并相继引发爆轰的重要因素.然而,由于目前人们对材料内部微观缺陷的认识不足,限制了对含能材料中"热点"形成微观机理的理解,进而阻碍了含能材料的发展和应用.为了洞悉含能材料内部微观缺陷特性及... 详细信息

含能材料中的微观缺陷是导致"热点"形成并相继引发爆轰的重要因素.然而,由于目前人们对材料内部微观缺陷的认识不足,限制了对含能材料中"热点"形成微观机理的理解,进而阻碍了含能材料的发展和应用.为了洞悉含能材料内部微观缺陷特性及探索缺陷引发"热点"的形成机理,利用第一性原理方法研究了分子空位缺陷对环三亚甲基三硝胺(RDX)含能材料的几何结构、电子结构及振动特性的影响,探讨了微观缺陷对初始"热点"形成的基本机理.采用周期性模型分析了分子空位缺陷对RDX几何结构、电子能带结构、电子态密度及前线分子轨道的影响.采用团簇模型分析了分子空位缺陷对RDX振动特性的影响.结果发现,分子空位缺陷的存在使其附近的N—N键变长,分子结构变得松弛;使导带中很多简并的能级发生分离,电子态密度减小,并使由N-2p和O-2p轨道形成的导带底和价带顶均向费米面方向移动,降低了能带隙值,增加了体系活性.前线分子轨道及红外振动光谱的计算分析表明,分子缺陷使最高已占分子轨道电荷主要集中在缺陷附近的分子上,且分子中C—H键和N—N键能减弱.这些特性表明,分子空位缺陷的存在使体系能带隙变小,并使缺陷附近的分子结构松弛,电荷分布增多,反应活性增强;在外界能量激发下,缺陷附近分子将变得不稳定,分子中的C—H键或N—N键较易先发生断裂,发生化学反应释放能量,进而成为形成"热点"的根源.

关键词：空位缺陷含能材料电子结构振动特性

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体育院校营造高品位文化氛围的理性思考

武汉体育学院学报 2006年第9期40卷 99-101页

作者：蒋雪岩中南财经政法大学经济学院湖北武汉430074

着重论述了营造体育院校高品位文化氛围的缘由与要求,特别强调了拓展师生深厚高远的精神空间,培育鼓励冒险、宽容失败的文化精神,以及构建宽松和谐、高雅文明的文化氛围的重要现实意义,以便探索体育院校营造商品文化氛围的途径,加强其建... 详细信息

着重论述了营造体育院校高品位文化氛围的缘由与要求,特别强调了拓展师生深厚高远的精神空间,培育鼓励冒险、宽容失败的文化精神,以及构建宽松和谐、高雅文明的文化氛围的重要现实意义,以便探索体育院校营造商品文化氛围的途径,加强其建设,营造出高品位的文化氛围。

关键词：体育文化大学文化文化氛围

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《诗品》对诗之本质及诗美境界的阐释

齐鲁学刊 2006年第5期 69-72页

作者：蒋雪艳济南职业学院文化传播系山东济南250001

钟嵘《诗品》是古代诗歌理论的丰碑,它对推动诗歌创作健康发展作出了贡献,也为后世诗歌理论奠定了坚实的基础。首先,它对诗歌的本质作出了更全面、更深刻的阐述,倡导了积极、健康的思想倾向;同时它又主张“自然”是诗歌美的最高境界,抑... 详细信息

钟嵘《诗品》是古代诗歌理论的丰碑,它对推动诗歌创作健康发展作出了贡献,也为后世诗歌理论奠定了坚实的基础。首先,它对诗歌的本质作出了更全面、更深刻的阐述,倡导了积极、健康的思想倾向;同时它又主张“自然”是诗歌美的最高境界,抑制了当时诗坛上出现的雕琢、华靡的不良倾向,对后世的诗歌创作与诗歌理论产生了重大影响。

关键词：钟嵘《诗品》物之感人直寻自然

过量钠盐和盐渍土壤提取液对3种外生菌根真菌生长的影响

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农村生态环境 2005年第3期21卷 16-20页

作者：黄艺姜学艳李婷北京大学环境学院环境科学系北京100871

美味牛肝菌(Boletusedulis)、红绒盖牛肝菌(Xerocomuschrysenteron)和铆钉菇(Gomphidiusviscidus)3种外生菌根真菌在不同浓度钠盐(0.05、0.10和0.20mol·L-1)和东营地区盐渍土壤提取液中培养,结果表明:钠盐处理促进了美味牛肝菌菌丝生长... 详细信息

美味牛肝菌(Boletusedulis)、红绒盖牛肝菌(Xerocomuschrysenteron)和铆钉菇(Gomphidiusviscidus)3种外生菌根真菌在不同浓度钠盐(0.05、0.10和0.20mol·L-1)和东营地区盐渍土壤提取液中培养,结果表明:钠盐处理促进了美味牛肝菌菌丝生长,生物量积累增加,而红绒盖牛肝菌和铆钉菇菌丝生长明显受到抑制。在土壤提取液培养条件下,供试3菌种菌丝的生长均受到极显著抑制。在不同浓度钠盐处理下,菌丝中钠元素的含量随培养基中钠盐浓度的增加而提高,说明菌丝对钠元素有较强的吸收能力。但不同菌种菌丝对钠元素的吸收和积累方式存在显著差异。

关键词：钠盐胁迫盐渍土提取液外生菌根真菌

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论《琵琶记》的美学贡献

艺术百家 2007年第1期23卷 37-39,18页

作者：蒋雪艳济南职业学院文化传播系山东济南250014

本文不是对剧中某个人物或具体情节进行分析评价,而是对《琵琶记》的总体美的感受、领悟和把握,探寻它美的根源。高明勇于面对生活的严酷,敢于写出人物的复杂面貌,忠实地写出了生活的真实和人物的真实。正因为它“真”,所以就踏进了美... 详细信息

本文不是对剧中某个人物或具体情节进行分析评价,而是对《琵琶记》的总体美的感受、领悟和把握,探寻它美的根源。高明勇于面对生活的严酷,敢于写出人物的复杂面貌,忠实地写出了生活的真实和人物的真实。正因为它“真”,所以就踏进了美的殿堂,创造出一部美的作品,给读者以美的享受,使观众得到了审美愉悦和自我超越的快乐。

关键词：美真审美愉悦和谐自我超越