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Journal of Integrative Plant Biology 2024年第3期66卷 468-483页

作者： Shuanghe Cao bingyan liu Daowen Wang Awais Rasheed Lina Xie Xianchun Xia Zhonghu He State Key Laboratory of Crop Gene Resources and Breeding/National Wheat Improvement Center Institute of Crop SciencesBeijing 100081China College of Agronomy Henan Agricultural UniversityZhengzhou 450002China International Maize and Wheat Improvement Center(CIMMYT)China Office Chinese Academy of Agricultural SciencesBeijing 100081China

Achieving high yield and good quality in crops is essential for human food security and health.However,there is usually disharmony between yield and quality.Seed storage protein(SSP)and starch,the predominant components in cereal grains,determine yield and quality,and their coupled synthesis causes a yield–quality trade-off.Therefore,dissection of the underlying regulatory mechanism facilitates simultaneous improvement of yield and quality.Here,we summarize current findings about the synergistic molecular machinery underpinning SSP and starch synthesis in the leading staple cereal crops,including maize,rice and wheat.We further evaluate the functional conservation and differentiation of key regulators and specify feasible research approaches to identify additional regulators and expand insights.We also present major strategies to leverage resultant information for simultaneous improvement of yield and quality by molecular breeding.Finally,future perspectives on major challenges are proposed.

关键词： cereal crops grain yield and quality seed storage protein starch synergistic regulation

Hierarchical Cu_(3)P-based nanoarrays on nickel foam as efficient electrocatalysts for overall water splitting

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Green Energy & Environment 2022年第2期7卷 236-245页

作者： Zhuojun Yang Yongxiao Tuo Qing Lu Chen Chen Mengshan liu bingyan liu Xuezhi Duan Yan Zhou Jun Zhang School of Materials Science and Engineering China University of Petroleum(East China)66 West Changjiang RoadQingdaoShandong266580China State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)66 West Changjiang RoadQingdaoShandong266580China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai200237China

Exploring the efficient bifunctional catalysts and binder-free electrode materials for both oxygen evolution reaction(OER)and hydrogen evolution reaction(HER)is receiving continuous interest.Herein,we report the fabrication of hierarchical copper phosphide nanoarrays(Cu_(3)P)on three-dimensional(3D)nickel foam(NF)through a template-directed synthetic strategy as electrocatalysts for overall water splitting.Specifically,the Cu_(3)P/NF electrode demonstrates a remarkably low overpotential of~331 m V to approach the current density of 50 m A cm^(-2)in the OER,and an overpotential of~115 m V to achieve-10 m A cm^(-2)current density in the HER.Meanwhile the Cu_(3)P/NF catalyst could hold a great stability for both reactions in alkaline condition,reflected in 37 h for OER and 24 h for HER of consistent galvanostatic electrolysis.As revealed by TEM,STEM and XPS characterizations,the high catalytic OER activity can be ascribed to the 3D open structure of Cu_(3)P/NF and the abundant Cu O active sites in hierarchical Cu O/Cu_(3)P/NF structure after in-situ activation.Furthermore,the overall water splitting is conducted in a two-electrode cell,which requires only a cell voltage of 1.63 V to approach 10 m A cm^(-2)with a good stability of 20 h.This protocol of Cu_(3)P/NF electrode affords a general strategy to construct hierarchically structured metal phosphides for clean energy-related application.

关键词： nickel splitting electrode

Pressure-induced robust emission in a zero-dimensional hybrid metal halide (C_(9)NH_(20))_(6)Pb_(3)Br_(12)

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Matter and Radiation at Extremes 2021年第5期6卷 80-86页

作者： Mengting Chen Songhao Guo Kejun Bu Sujin Lee Hui Luo Yiming Wang bingyan liu Zhipeng Yan Hongliang Dong Wenge Yang Biwu Ma Xujie Lü Center for High Pressure Science and Technology Advanced Research(HPSTAR) 1690 Cailun RoadShanghai 201203People’s Republic of China Department of Chemistry and Biochemistry Florida State UniversityTallahasseeFlorida 32310USA

Zero-dimensional(0D)hybrid metal halides are under intensive investigation owing to their unique physical properties,such as the broadband emission from highly localized excitons that is promising for white-emitting lighting.However,fundamental understanding of emission variations and structure–property relationships is still limited.Here,by using pressure processing,we obtain robust exciton emission in 0D(C_(9)NH_(20))_(6)Pb_(3)Br_(12) at room temperature that can survive to 80 GPa,the recorded highest value among all the hybrid metal halides.In situ experimental characterization and first-principles calculations reveal that the pressure-induced emission is mainly caused by the largely suppressed phonon-assisted nonradiative pathway.Lattice compression leads to phonon hardening,which considerably weakens the exciton–phonon interaction and thus enhances the emission.The robust emission is attributed to the unique structure of separated spring-like[Pb_(3)Br_(12)]^(6−)trimers,which leads to the outstanding stability of the optically active inorganic units.Our findings not only reveal abnormally robust emission in a 0D metal halide,but also provide new insight into the design and optimization of local structures of trimers and oligomers in lowdimensional hybrid materials.

关键词： halide phonon attributed

Effect of H treatment on performance of HIT solar cells

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Rare Metals 2006年第Z1期25卷 133-136页

作者： REN bingyan WANG Minhua liu Xiaoping XU Ying School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China Beijing Solar Energy Research Institute Beijing 100083 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China Beijing Solar Energy Research Institute Beijing 100083 China Beijing Solar Energy Research Institute Beijing 100083 China

Hydrogen is a ubiquitous element in semiconductor processing and particularly in amorphous and microcrystalline silicon where it plays a crucial role in the growth processes as well as in the material properties. Because of its low mass it can easily diffuse through the silicon network and leads to the passivation of dangling bonds but it may also play a role in the stabilization of metastable defects. Thus a lot of work has been devoted to the study of hydrogen diffusion, bonding and structure in disordered semiconductors. The sequence, deposition-exposure to H plasma-deposition was used to fabricate the microcrystalline emitter. A proper atomic H pretreatment of c-Si surface before depositions i layer was expected to clean the surface and passivatates the surface states, as a result improing the device parameters. In this study, H2 pretreatment of c-si surface was used at different time, power and temperature. It is found that a proper H pretreatment improves passivation of c-si surface and improves the device parameters by AFM and testing I-V.

关键词： H pretreatment HIT solar cell c-si buffer layer

Preparation and characteristics of indium tin oxide (ITO) thin films at low temperature by r.f. magnetron sputtering

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Rare Metals 2006年第Z1期25卷 137-140页

作者： REN bingyan liu Xiaoping WANG Minhua XU Ying School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China Beijing Solar Energy Research Institute Beijing 100083 China School of Material Science and Engineering Hebei University of Technology Tianjin 300130 China Beijing Solar Energy Research Institute Beijing 100083 China Beijing Solar Energy Research Institute Beijing 100083 China

Low resistivity and highly transparent ITO conducting films for solar cell applications were fabricated at low temperature by r.f. magnetron sputtering. ITO films were deposited on glass and silicon substrate. Electrical, optical, structural and morphological properties of the ITO films were investigated in terms of the preparation conditions. The annealing treatment has improved the properties of the ITO films at different degree. The maximum transmittance of the obtained ITO films in the visible range is over 92%, and the low resistivity for the ITO films are about 3.85×10-4 Ω·cm at 80 ℃, 80 W after annealing.

关键词： ITO r.f. magnetron sputtering low temperature annealing

Antimony oxides-protected ultrathin Ir-Sb nanowires as bifunctional hydrogen electrocatalysts

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Nano Research 2024年第3期17卷 1042-1049页

作者： bingyan Xu Xuan Huang Shangheng liu Zhiwei Hu Cheng-Wei Kao Ting-Shan Chan Hongbo Geng Ying Zhang Xiaoqing Huang Country State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Max Planck Institute for Chemical Physics of Solids Dresden 01187Germany “National Synchrotron Radiation Research Center” Hsinchu 30076TaiwanChina School of Materials Engineering Changshu Institute of TechnologyChangshu 215500China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China

Developing electrocatalysts with fast kinetics and long-term stability for alkaline hydrogen oxidation reaction(HOR)and hydrogen evolution reaction(HER)is of considerable importance for the industrial production of green and sustainable energy.Here,an ultrathin Ir-Sb nanowires(Ir-Sb NWs)protected by antimony oxides(SbO_(x))was synthesized as an efficient bifunctional catalyst for both HOR and HER under alkaline media.Except from the much higher mass activities of Ir-Sb nanowires than those of Ir nanowires(Ir NWs)and commercial Pt/C,the SbO_(x) protective layer also contributes to the maintenance of morphology and anti-CO poisoning ability,leading to the long-term cycling performance in the presence of CO.Specifically,the Ir-Sb NW/SbO_(x) exhibits the highest catalytic activities,which are about 3.5 and 4.8 times to those of Ir NW/C and commercial Pt/C toward HOR,respectively.This work provides that the ultrathin morphology and H_(2)O-occupied Sb sites can exert the intrinsic high activity of Ir and effectively optimize the absorption of OH*both in alkaline HER/HOR electrolysis.

关键词： Ir nanowire amorphous antimony oxides bifunctional mechanism hydrogen evolution reaction hydrogen oxidation reaction

洛阳旅游企业“盛唐古韵文化”价值转化的路径分析

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对外经贸 2022年第7期 45-47页

作者：刘兵燕洛阳科技职业学院艺术与设计学院河南洛阳471000

以挖掘盛唐时期的传统文化为出发点,通过对礼仪、民俗、饮食、服饰、诗词和歌舞文化五个方面的研究,系统阐述洛阳盛唐时期的文化。提出以“IP+旅游”提炼盛唐文化价值核心,系统打造洛阳文化标识;文化产品的多元化和深度化运营;产学研融... 详细信息

以挖掘盛唐时期的传统文化为出发点,通过对礼仪、民俗、饮食、服饰、诗词和歌舞文化五个方面的研究,系统阐述洛阳盛唐时期的文化。提出以“IP+旅游”提炼盛唐文化价值核心,系统打造洛阳文化标识;文化产品的多元化和深度化运营;产学研融合共同努力,文化开发和文化教育双管齐下,开发盛唐古韵文化,提升城市文化自信的路径。

关键词： IP+旅游文化价值文化创意文化开发价值转化

国际食品安全文化建设进展分析及对我国的启示

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食品工业科技 2024年第9期45卷 218-224页

作者：李强张冰岩戴岳张宏蕊刘鹏中国标准化研究院农业食品标准化研究所北京100191

为探索建设适合我国国情的食品安全文化,本文收集整理全球食品安全倡议(GFSI)、世界卫生组织(WHO)、国际食品法典委员会(CAC)及欧盟、澳新、美国、英国等组织和国家开展的食品安全文化建设工作的资料,从食品安全文化的定义、出台的相关... 详细信息

为探索建设适合我国国情的食品安全文化,本文收集整理全球食品安全倡议(GFSI)、世界卫生组织(WHO)、国际食品法典委员会(CAC)及欧盟、澳新、美国、英国等组织和国家开展的食品安全文化建设工作的资料,从食品安全文化的定义、出台的相关政策、建立食品安全文化的重要性、食品安全文化评价原则、应采取的有效措施和评估时使用的工具等方面进行了分析比较,并基于中国传统文化的积淀、传承、城乡食品安全现状,提出了构建中国特色食品安全文化相关建议,希望为构建符合我国国情的食品安全文化提供参考和借鉴。

关键词：食品食品安全文化现代化食品安全价值观评价原则

基于调制系数最优法的TLDMC-PMSM新型直接转矩控制

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电力自动化设备 2024年第3期44卷 158-165页

作者：程启明刘科程尹曼张昕岳秉言上海电力大学自动化工程学院上海市电站自动化技术重点实验室上海200090 上海电力公司市北供电分公司上海200041

针对矩阵变换器永磁同步电机系统(MC-PMSM)直接转矩控制方法出现的转矩磁链脉动大、幅值失调、系统鲁棒性弱等问题,提出了一种基于调制系数最优法的三电平直接矩阵变换器永磁同步电机(TLDMCPMSM)新型直接转矩控制方法。首先描述了MC-PMS... 详细信息

针对矩阵变换器永磁同步电机系统(MC-PMSM)直接转矩控制方法出现的转矩磁链脉动大、幅值失调、系统鲁棒性弱等问题,提出了一种基于调制系数最优法的三电平直接矩阵变换器永磁同步电机(TLDMCPMSM)新型直接转矩控制方法。首先描述了MC-PMSM直接转矩控制系统的原理;其次用三电平直接矩阵变换器替换两电平矩阵变换器,转速环通过复叠式螺旋滑模控制、转矩磁链环通过超螺旋滑模直接转矩控制替换传统的比例积分控制,并且引入调制系数最优法来抑制电机转矩波动逐渐增大,进而实现对永磁同步电机的精确控制;最后通过MATLAB/Simulink仿真软件和硬件实验验证所提方法的可行性与优越性。

关键词：调制系数最优法三电平直接矩阵变换器永磁同步电机复叠式螺旋滑模控制超螺旋滑模直接转矩控制

透析导管置入过程中发现永存左上腔静脉并Chiari网嵌顿导丝1例

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中华肾脏病杂志 2023年第10期39卷 783-785页

作者：胡蓉蓉王颖陈之淳胡燕刘炳岩秦岩中国医学科学院北京协和医院肾内科北京100730

该文报道1例尿毒症患者行透析导管置管过程中发现孤立性永存左上腔静脉(persistent left superior vena cava,PLSVC)并发生导丝嵌顿Chiari网现象。患者因终末期肾病、急性左心功能衰竭拟行急诊透析,行带隧道和涤纶套的透析导管(tunnel-c... 详细信息

该文报道1例尿毒症患者行透析导管置管过程中发现孤立性永存左上腔静脉(persistent left superior vena cava,PLSVC)并发生导丝嵌顿Chiari网现象。患者因终末期肾病、急性左心功能衰竭拟行急诊透析,行带隧道和涤纶套的透析导管(tunnel-cuffed catheter,TCC)置入,造影过程中发现孤立性PLSVC,操作导丝时发现右心房水平嵌顿,在操控导丝过程中导丝松动并带出一条细纤维丝,考虑为Chiari网嵌顿可能。1周后随访,患者透析导管使用良好,透析脱水后心功能改善。

关键词：肾透析导管插入术中心静脉永存左上腔静脉畸形带隧道和涤纶套的透析导管导丝嵌顿 Chiari网