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A thermal stable cathode buffer based on an inexpensive tetranuclear zinc(Ⅱ) complex for organic photovoltaic devices

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Science China Chemistry 2012年第12期55卷 2562-2566页

作者： LI ZhiGang GAO ZhiQiang WANG HaiShan ZHANG Hui ZHAO XinYan mi BaoXiu HUANG wei Jiangsu Engineering Centre for Flat-Panel Displays&Solid-state Lighting and School of Materials Science&Engineering Nanjing University of Posts&Telecommunications Nanjing 210046China Key Laboratory for Organic Electronics&Information Displays(KLOEID)and Institute of Advanced Materials(IAM) Nanjing University of Posts&TelecommunicationsNanjing 210046China

An inexpensive material, i.e., tetranuclear zinc（Ⅱ） complex, （Zn40（A/D）6） [AID = 7-azaindolate], was utilized as a cathode buffer in organic photovoltaic （OPV） devices, leading to the improvement of device performance. Compared to OPV devices based on a conventional cathode buffer of TPBi （1,3,5-tris（2-N-phenylbenzimidazolyl）benzene）, although the freshly prepared devices showed similar performance, when heated to a series of high temperatures under air, the short circuit current and the open circuit voltage of the Zn40（AID）6 devices dropped more slowly, indicating the superiority of using Zn40（AID）6 as a cathode buffer over TPBi in OPV devices.

关键词： organic photovoltaic devices thermal stability inexpensive cathode buffer layer

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硅烷改性钛石膏沥青胶浆性能研究

森林工程 2025年第1期41卷 185-194页

作者：董营营苏纪壮张朝魏毛元张惠勤王凯山东高速集团四川乐宜公路有限公司成都610041 山东高速工程检测有限公司济南250002 大宗固废材料在交通领域行业循环利用行业研发中心济南250002

为降低钛石膏堆积带来的环境问题,同时缓解道路材料短缺现状,采用钛石膏和硅烷偶联剂处理后的钛石膏部分或全部代替石灰岩矿粉,研究钛石膏和改性钛石膏对沥青胶浆常规性能和流变性能的影响。首先通过激光粒度仪和扫描电子显微镜分析钛... 详细信息

为降低钛石膏堆积带来的环境问题,同时缓解道路材料短缺现状,采用钛石膏和硅烷偶联剂处理后的钛石膏部分或全部代替石灰岩矿粉,研究钛石膏和改性钛石膏对沥青胶浆常规性能和流变性能的影响。首先通过激光粒度仪和扫描电子显微镜分析钛石膏、改性钛石膏和石灰岩矿粉的粒度分布情况及微观形貌。然后制备不同钛石膏和改性钛石膏掺量的沥青胶浆,采用常规试验方法、温度扫描试验、频率扫描试验、多重应力蠕变恢复(mutiple stress creep recovery,MSCR)试验、线性振幅扫描(linear amplitude sweep,LAS)试验和弯曲梁流变(bending beam rheometer,BBR)试验测试沥青胶浆的三大指标(针入度、延度和软化点)、高温流变性能、抗疲劳性能和低温流变性能。结果表明,钛石膏和改性钛石膏的粒度范围更广,表面更为粗糙;钛石膏和改性钛石膏的加入降低了沥青胶浆的延度、针入度、不可恢复蠕变柔量(Jnr)、疲劳寿命(N_(f))、蠕变速率(m)和相位角(δ),软化点、复数模量(G^(*))、弹性恢复率(R)和蠕变劲度模量(S)有所提高,即高温性能有所提高,低温性能和疲劳性能有所下降。相同温度下,改性钛石膏的高温性能和弹性恢复指标要优于钛石膏,低温性能有所降低。研究证实使用钛石膏进行沥青混合料生产的可行性,为钛石膏的资源化利用开拓方向。

关键词：钛石膏沥青胶浆改性钛石膏矿粉流变性能

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行距配置和种植密度对棉花干物质生产及产量的影响

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作物学报 2025年第1期51卷 221-232页

作者：辛明华秘雅迪王国平李小飞李亚兵董合林韩迎春冯璐中国农业科学院棉花研究所/棉花生物学国家重点实验室河南安阳455000 中国农业科学院西部农业研究中心新疆昌吉831100

行距配置和种植密度是影响棉花产量和品质的重要因素。当前新疆棉花种植主要采用宽窄行配置,也有等行距配置方式,但对这两种方式的认识尚存在争议。为此,本研究以中棉所88号为供试材料,采用裂区设计,行距配置(等行距和宽窄行)为主区,种... 详细信息

行距配置和种植密度是影响棉花产量和品质的重要因素。当前新疆棉花种植主要采用宽窄行配置,也有等行距配置方式,但对这两种方式的认识尚存在争议。为此,本研究以中棉所88号为供试材料,采用裂区设计,行距配置(等行距和宽窄行)为主区,种植密度12×104株hm^(–2) (D1)、16×104株hm^(–2) (D2)和18×104株hm^(–2) (D3)为裂区,开展了2年大田试验,比较研究了行距配置和密度对棉花群体生长发育、干物质积累和分配、以及产量和纤维品质的影响。结果表明,中等密度(16×10^(4)株hm^(–2))下等行距和宽窄行处理组合的叶面积指数(LAI)增速、LAI峰值,以及吐絮期生殖器官生物量的分配比例均高于其他处理组合,且二者无显著差异。各处理组合间的棉花群体生长率(CGR)、净同化率(NAR)和棉铃生长率(BGR)均无显著差异。2年平均,中等密度下等行距和宽窄行处理组合的籽棉产量相当,纤维品质指标也无显著差异。表明在中等密度下,无论采用等行距还是宽窄行种植模式,均能达到理想的产量和品质。本研究为新疆棉花行距配置和密度选择提供了科学依据。

关键词：棉花单双行配置密度生长指标干物质积累与分配产量及品质

Zr_(55)Al_(10)Ni_(5)Cu_(30)amorphous alloy film prepared by magnetron sputtering method

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Rare Metals 2021年第8期40卷 2237-2243页

作者： dong-Mei mi Sheng-Li Zhu Yan-Qin Liang Zhao-Yang Li Zhen-Duo Cui Xian-Jin Yang Akihisa Inoue School of Materials Science and Engineering Tianjin UniversityTianjin300072China Tianjin Key Laboratory of Composite and Functional Materials Tianjin300072China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin300072China Department of Physics Kings Abudulaziz UniversityJeddah22254Saudi Arabia

In this work,amorphous Zr_(55)Al_(10)Ni_(5)Cu_(30)alloy thin film was prepared on D36 steel substrate by magnetron sputtering *** film was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),atomic force microscopy(AFM),hardness tester and nano *** behavior of the film was investigated in 3.5%NaCl aqueous solutions by an electrochemical *** room temperature,the amorphous alloy film was formed completely after sputtering for 5 *** surface morphology of the amorphous alloy film was uniform and *** of the amorphous alloy film improved the microhardness and corrosion resistance of the D36 *** amorphous alloy film(prepared at room temperature for 5 h)exhibited good adhesion strength with the *** as-sputtered sample exhibited a crevice corrosion trend when the sputtering time was too short(1 h)or too long(10 h).

关键词： Magnetron sputtering Amorphous alloy Thin film Corrosion resistance Zr_(55)Al_(10)Ni_(5)Cu_(30)

QTL mapping and transcriptome analysis identify candidate genes influencing water–nitrogen interaction in maize

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The Crop Journal 2023年第6期11卷 1872-1883页

作者： Kunhui He Yakun Zhang wei Ren Pengyun Chen Jianchao Liu Guohua mi Fanjun Chen Qingchun Pan State Key Laboratory of Nutrient Use and Management College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China College of Agronomy Northwest A&F UniversityYangling 712100ShaanxiChina Sanya Institute of China Agricultural University Sanya 572000HainanChina

Water and nitrogen fertilization are the key factors limiting maize *** genetic basis of interactions between maize genotype,water,and nitrogen is unclear.A recombinant inbred line(RIL)maize population was evaluated for seven yield and five agronomic traits under four water and nitrogen conditions:water stress and low nitrogen,water stress and high nitrogen,well-watered and low nitrogen,and well-watered and high *** eight,six,and six traits varied in response to genotype–water interactions,genotype–nitrogen interactions,and genotype–water–nitrogen *** a linkage map consisting of 896 single-nucleotide polymorphism markers and multipleenvironmental quantitative-trait locus(QTL)mapping,we identified 31 QTL,including 12 for genotype–water–nitrogen interaction,across the four treatments.A set of 8060 genes were differentially expressed among *** genetic analysis,gene co-expression,and functional annotation revealed two candidate genes controlling genotype–water–nitrogen interactions,affecting both leaf width and grain *** involved in abscisic acid biosynthesis and bZIP,NAC,and WRKY transcription factors participated in maize response to water and nitrogen *** results represent a step toward understanding the genetic regulatory network of maize that responds to water and nitrogen stress and provide a theoretical basis for the genetic improvement of both water-and nitrogen-use efficiency.

关键词： Quantitative trait loci Water Nitrogen Interaction Maize

JA-mediated MYC2/LOX/AOS feedback loop regulates osmotic stress response in tea plant

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Horticultural Plant Journal 2024年第3期10卷 931-946页

作者： Junyan Zhu Hongrong Chen Lu Liu Xiaobo Xia Xiaomei Yan Xiaozeng mi Shengrui Liu Chaoling wei State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China

Osmotic stress caused by low-temperature,drought and salinity was a prevalent abiotic stress in plant that severely inhibited plant development and agricultural yield,particularly in tea *** acid(JA)is an important phytohormone involving in plant ***,underlying molecular mechanisms of JA modulated osmotic stress response remains *** this study,high concentration of mannitol induced JA accumulation and increase of peroxidase activity in tea *** transcriptome mined a JA signaling master,MYC2 transcription factor is shown as a hub regulator that induced by mannitol,expression of which positively correlated with JA biosynthetic genes(LOX and AOS)and peroxidase genes(PER).CsMYC2 was determined as a nuclei-localized transcription activator,furthermore,ProteinDNA interaction analysis indicated that CsMYC2 was positive regulator that activated the transcription of CsLOX7,CsAOS2,CsPER1 and CsPER3via bound with their promoters,*** of CsMYC2 expression resulted in a reduced JA content and peroxidase activity and osmotic stress tolerance of tea *** of CsMYC2 in Arabidopsis improved JA content,peroxidase activity and plants tolerance against mannitol ***,we proposed a positive feedback loop mediated by CsMYC2,CsLOX7 and CsAOS2 which constituted to increase the tolerance of osmotic stress through fine-tuning the accumulation of JA levels and increase of POD activity in tea plant.

关键词： Camellia sinensis Jasmonic acid(JA) MYC2 transcription factor Lipoxygenase(LOX) Osmotic stress Peroxidase(POD) Reactive oxygen species(ROS)

Comparison and analysis of dislocation density,morphology and evolution in mi-crostructure of low-carbon steel produced using different technologies

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Journal of University of Science and Technology Beijing 2006年第5期13卷 406-410页

作者： Hao Yu Yonglin Kang Hongbo dong Materials Science and Engineering School University of Science and Technology Beijing Beijing 100083 China Jinan Iron ＆ Steel Group Co. Jinan 250101 China

Three kinds of specimens were produced from hot strips of similar composition and same thickness （nominal gauge 4.0 mm） but produced using different technologies, and the dislocation density of these strips was quantitatively measured by positron annihilation technique test. The dislocation morphology and evolution in microstructure of each pass for producing the 1.9 mm hot strip using CSP （compact strip production） technology were observed under an H-800 transmission electron microscope; its density was also quantitatively measured using the positron annihilation technique test, and the factors influencing the dislocation density during the production process were analyzed. The experimental results show that the dislocation density in the microstructure produced using CSP technology is higher than that in the microstructure produced using conventional technology. This result was discussed and confirmed on the basis of the finite element simulation and the theory relevant to dislocations.

关键词： compact strip production (CSP) microstructure dislocation positron annihilation technique finite element simulation

Advanced atomic force microscopies and their applications in two-dimensional materials:a review

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Materials Futures 2022年第3期1卷 105-143页

作者： Rui Xu Jianfeng Guo Shuo mi Huanfei Wen Fei Pang wei Ji Zhihai Cheng Beijing Key Laboratory of Optoelectronic Functional Materials&micro-nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872People’s Republic of China Key Laboratory of Instrument Science and Dynamic Testing North University of ChinaTaiyuan 030051People’s Republic of China Key Laboratory of Quantum Sensing and Precision Measurement Institute of Instrument and ElectronicsNorth University of ChinaTaiyuan 030051People’s Republic of China

Scanning probe microscopy(SPM)allows the spatial imaging,measurement,and manipulation of nano and atomic scale surfaces in real *** the last two decades,numerous advanced and functional SPM methods,particularly atomic force microscopy(AFM),have been developed and applied in various research fields,from mapping sample morphology to measuring physical ***,we review the recent progress in functional AFM methods and their applications in studies of two-dimensional(2D)materials,particularly their interfacial physical properties on the *** review can inspire more exciting application works using advanced AFM modes in the 2D and functional materials fields.

关键词： atomic force microscopy advanced atomic force microscopy two-dimensional materials surface and interface

ANALYSIS OF SURFACE SINK OF EXPLORATION VACANCY IN GOLD miNING AREA OF ZHAOYUAN CTIY BASED ON RS AND GIS

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Chinese Geographical Science 2005年第4期15卷 355-360页

作者： WU Quan-yuan AN Guo-qiang BAO Wen-dong ZHANG Zu-lu XU Qiu-xiao FANG Xue-mi The College of Geoscience and Engineering of Shandong Tai＇an 271019 P. R. China Shandong Normal University Jinan 250014 P.. R. China The Engineering College of Land Investigation and Layout of Shandong Jinan 250014 P. R. China

Surface sink is a main geological calamity of gold mining areas and a main factor to restrict economic sustainable development of mining zone. Based on former investigations, this article draws the environment information of surface sink of exploration vacancy in gold mining area of Zhaoyuan City, Shangdong Province by RS technology. Through spatial simulation analysis and expert diagnoses on the basis of GIS technology, the article affirms the inducement factors of the surface sink. Then using these factors as distinguishing ones the authors prognosticate the criticality of other exploration vacancies. The results indicate that the surface sink area of study area in Zhaoyuan City, has already come to 0.78km2 and it is forecasted that 0.97km2 of the exploration vacancy belongs to high danger area. Decisive measures need taking in order to prevent this crucial problem. Another 1.57km2 of the exploration vacancies belongs to middle danger area, which will sink when meeting some inducing factors, such as earthquake. Still another 1.53km2 of the exploration vacancies belongs to low danger area that can not lead to surface sink when meeting common inducing factors.

关键词： surface sink exploration vacancy remote sensing(RS) geographic information system(GIS)