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Cosensitization process effect of D-A-π-A featured dyes on photovoltaic performances

Green Energy & Environment 2016年第1期1卷 84-90页

作者： Bo Liu qipeng Chai Weiwei Zhang Wenjun wu He Tian Wei-Hong Zhu Shanghai Key Laboratory of Functional Materials Chemistry Key Laboratory for Advanced Materials and Institute of Fine ChemicalsCollaborative Innovation Center for Coal Based Energy(i-CCE)School of Chemistry and Molecular EngineeringEast China University of Science and Technology College of Chemistry and Material Science Hebei Normal University

Cosensitization based on two or multiple dyes as "dye cocktails" can hit the target on compensating and broadening light-harvesting *** indoline D-A-π-A motif sensitizers(WS-2 and WS-39) that possess similar light response area but distinctly reversed feature in photovoltaic performance are selected as the specific cosensitization couple. That is, WS-2 shows quite high photocurrent but low photovoltage, and WS-39 gives relatively low photocurrent but quite high photo voltage. Due to the obvious "barrel effect",both dyes show medium PCE around8.50%. In contrast with the previous cosensitization strategy mostly focused on the compensation of light response region, herein we perform different cosensitization sequence, for taking insight into the balance of photocurrent and photo voltage, and achieving the synergistic improvement in power conversion efficiency(PCE). Electronic impedance spectra(EIS) indicate that exploiting dye WS-39 with high V_(OC) value as the primary sensitizer can repress the charge recombination more effectively, resulting in superior V_(OC) rather than using dye WS-2 with high J_(SC)as the primary sensitizer. As a consequence, a high PCE value of 9.48% is obtained with the delicate cosensitization using WS-39 as primary dye and WS-2 as accessory dye, which is higher than the corresponding devices sensitized by each individual dye(around 8.48-8.67%). It provides an effective optimizing strategy of cosensitization how to combine the individual dye advantages for developing highly efficient solar cells.

关键词： Indoline dye Cosensitization Adsorption sequence Charge recombination Photovoltaic performances

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Fluvial geomorphology of the Middle Reach of the Huai River

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International Journal of Sediment Research 2014年第1期29卷 24-33页

作者： Bang-yi yU Peng wu Jue-yi SUI Xing-ju yANG Jin NI Research Institute of Water Resources Engineering of Anhui Province Environmental Engineering Program University of Northern British Columbia

The Middle Reach of the Huai River（MRHR） flows northeast into the Hongzehu *** entering the Hongzehu Lake,the Huai River has a braided channel which is shallow and wide,and the riverbed has a negative *** on the characteristics of the MRHR,this river reach can be divided into the following sections:a quasi-straight（or mildly curved） section,a bend section,and a braided *** majority of the MRHR is *** this paper,several parameters are used to assess the geomorphology of the *** analyses are performed to establish a relationship between the span length "L" and channel width "B" for different channel *** relationship between the meandering length "S" and bankfull channel width "B" is also *** indicate that the bankfull channel width "B",the bankfull cross sectional area "A" and the average flow depth "H" are mainly dependent on the dominant discharge in the channel.A relationship is derived that describes the dependency of the curvature radius "R" on the dominant discharge "q",water surface slope "J" and the turning angle;.

关键词： Braided channel Dominant discharge Huai River Channel pattern

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丝素蛋白联合壳聚糖基热敏水凝胶的性能评估

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中国当代医药 2024年第16期31卷 10-14页

作者：潘源城吴林坤郑逸翔薛宸涛欧阳智斌陈群刘岩陈顺有福州市第二医院小儿骨科福建省创伤骨科急救与康复临床医学研究中心福建福州350007 福建中医药大学中医学院福建福州350122 福州市第二医院科研办福建福州350007

目的在壳聚糖(CS)/羟丙基甲基纤维素(HPMC)热敏水凝胶的基础上,利用丝素蛋白(SF)与CS交联,构建CS/HPMC/SF水凝胶,研究SF对水凝胶的性能影响。方法共混法制备CS/HPMC混合溶液,向其中分别添加1%、5%、10%的SF溶液及交联剂京尼平,加入圆柱... 详细信息

目的在壳聚糖(CS)/羟丙基甲基纤维素(HPMC)热敏水凝胶的基础上,利用丝素蛋白(SF)与CS交联,构建CS/HPMC/SF水凝胶,研究SF对水凝胶的性能影响。方法共混法制备CS/HPMC混合溶液,向其中分别添加1%、5%、10%的SF溶液及交联剂京尼平,加入圆柱形模具中,升温至37℃,使溶液转为凝胶态。对水凝胶进行形貌、傅里叶变换红外光谱仪(FTIR)、X射线衍射(XRD)以及亲水性及力学性能表征检测。结果扫描电子显微镜下观察水凝胶为多孔状,随着SF的加入,孔隙减少,出现裂痕。FTIR和XRD结果显示,CS与HPMC混合后结晶程度改变,当加入SF后,SF与CS发生化学交联,结构发生转变,水凝胶的亲水性也因此减弱。力学表征显示,当SF的添加量为5%时,水凝胶的回弹性最优,弹性模量最大,且基本保持不变。结论SF与CS的交联改进了CS基热敏水凝胶的性能,相比于其他组水凝胶,CS/HPMC-5%SF保持良好的亲水性且具有较好的力学性能。

关键词：水凝胶壳聚糖羟丙基甲基纤维素丝素蛋白

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Sequencing and Phylogenetic Analysis of Potato virus y Liaoning Isolate in China

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Journal of Integrative Agriculture 2013年第7期12卷 1195-1200页

作者： WANG Fang GAO Zheng-liang AN Meng-nan ZHOU Ben-guo wu yuan-hua College of Plant Protection Shenyang Agricultural University Tobacco Research Institute Anhui Academy of Agricultural Sciences

Complete genome sequence of Potato virus y Liaoning isolate （PVy-LN） causing tobacco vein necrosis symptoms were isolated from Liaoning Province in China. Genome sequences of PVy-LN was 9 714 nucleotides in length, excluding the 3′- terminal poly （A） tail. PVy-LN encodes a single long open reading frame （ORF） of polyprotein that is predicted to be cleaved into ten mature proteins by three viral proteases. No recombination can be predicted in PVy-LN sequences compared with that of the other PVy strains using Recombination Detection Programe v. 4.16 （RDP4）. Complete genome sequence comparison and phylogenetic analysis indicated that PVy-LN is closely related to PVy necrosis strain （PVyN）.

关键词： PVy Liaoning isolate cloning genome sequencing phylogeny

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Inhibition of miR-873 provides therapeutic benefit in lipopolysaccharide-induced Parkinson disease animal model

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中国药理学与毒理学杂志 2017年第10期31卷 961-962页

作者： Jin-hua wu Juan wu Xu-ming yU Zhe-qiong yANG Xian-fei XIE Jiang yUE Department of Pharmacology Wuhan University School of Basic Medical Sciences

OBJECTIVE Neuroinflammation plays a critical role in neurodegenerative disorders,although the inflammation may not the initiating *** disease(PD)is characterized pathologically by the accumulation of alpha synuclein(α-syn)and the loss of the dopamine(DA)neurons in the substantia nigra(SN),which has been reported to be induced by the stereotaxic injection of lipopolysaccharide(LPS)to the SN region in *** study is to investigate the therapeutic benefit of the inhibition of miR-873 in *** Rats received the right-unilaterally injection with concentrated LV-sponge or LV-EGFP 3 d before LPS treatment,7 or 14 d after LPS *** animals were tested for rotational behavior with the dopaminergic agonist apomorphine dissolved in sterile saline at 21 d after LPS *** regulation of miR-873 on the genes related with cholesterol transport and inflammation was assayed in SH-Sy5y cells and U251 *** TLR4-My D88 signaling pathway was involved the regulation of miR-873 by *** luciferase assay showed that HMGCR,ABCA1 and A20 were down-stream genes of *** transfection of miR-873 decreased the cholesterol levels in cell membrane,but increased in lysosome in SH-Sy5y *** with the control SH-Sy5y cells,cholesterol levels were higher in lysosome withα-synuclein overexpression or LPS *** transfection of miR-873 increased theα-syn levels in lysosome in cel s withα-synuclein *** loss of dopaminergic neuorns induced by LPS was significantly respectively decreased by 22.8%,35.6%and 57% after the inhibition of miR-873 at 3 d before LPS treatment,7 or14 d after LPS *** with LPS-treated group,the number of the rotation of rats was decreased by 60.4%,33.5%and 13.2%after the inhibition of miR-873 at 3 d before LPS treatment,7or 14 d after LPS *** inhibition of miR-873 significantly decreased accumulation ofα-*** m RNA levels of HMGCR,ABCA1 and A20 in SN were decreased by L

关键词： neuroinflammation Parkinson disease TLR4-MyD88 signaling pathway miR-873

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十斑大瓢虫对豆蚜的捕食特性研究

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中国农学通报 2024年第5期40卷 105-109页

作者：魏莲刘虹伶伍兴隆陈河竹彭应力肖科军蔡鹏房超李跃建蒲德强四川省农业科学院植物保护研究所四川省农业科学院园艺研究所/蔬菜种质与品种创新四川省重点实验室

为明确十斑大瓢虫对豆蚜的捕食能力和捕食规律，将野外采集的十斑大瓢虫置于室内饲养2代，再测定其各龄幼虫及雌、雄成虫对豆蚜的捕食量，以倒数法拟合Holling II圆盘方程，明确了十斑大瓢虫对豆蚜的捕食特性。研究结果表明，十斑大瓢... 详细信息

为明确十斑大瓢虫对豆蚜的捕食能力和捕食规律，将野外采集的十斑大瓢虫置于室内饲养2代，再测定其各龄幼虫及雌、雄成虫对豆蚜的捕食量，以倒数法拟合Holling II圆盘方程，明确了十斑大瓢虫对豆蚜的捕食特性。研究结果表明，十斑大瓢虫对豆蚜的捕食量随着虫龄增加而逐渐增加，当N→∞时，十斑大瓢虫的1～4龄幼虫以及雌、雄成虫在1 d内对豆蚜的最大捕食量分别为30.1628、158.7003、556.3928、988.1128、841.0084、589.4011头。十斑大瓢虫幼虫对豆蚜的捕食量与日龄的拟合方程为y=3.9123x2.2092(R2=0.8093)，随着日龄的增加捕食数量呈指数关系逐渐增加。雌、雄成虫对豆蚜的捕食量与日龄的拟合方程分别为y=0.9453x2-28.274x+827.44(R2=0.456)和y=0.8762x2-31.511x+635.38(R2=0.7188)，随着日龄期的增加捕食数量逐渐降低。

关键词：十斑大瓢虫豆蚜捕食量天敌昆虫生物防治

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Over-expression of WOX1 Leads to Defects in Meristem Development and Polyamine Homeostasis in Arabidopsis

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Journal of Integrative Plant Biology 2011年第6期53卷 493-506页

作者： yanxia Zhang Renhong wu Genji qin Zhangliang Chen Hongya Gu Li-Jia qu State KeyLaboratory for Protein- and Plant 'Gene-I~esearch 'Pe--king-Yale Joi~ Research Center iorl~la-nt Molecular Genetics andAgroBiotechnology College of Life Sciences Peking University Beijing 100871 China The National Plant Gene Research Center (Beijingi Beijing 100101 China

In plants, the meristem has to maintain a separate population of pluripotent cells that serve two main tasks, i.e., self-maintenance and organ initiation, which are separated spatially in meristem. Prior to our study, wuS and *** WOX genes had been reported as essential for the development of the SAM. In this study, the consequences of gain of WOX1 function are described. Here we report the identification of an Arabidopsis gain-of-function mutant woxl-D, in which the expression level of the WOX1 （wuSCHEL HOMEOBOX 1） was elevated and subtle defects in meristem development were observed. The woxl-D mutant phenotype is dwarfed and slightly bushy, with a smaller shoot apex. The woxl-D mutant also produced small and dark green leaves, and exhibited a failure in anther dehiscence and male sterility. Molecular evidences showed that the transcription of the stem cell marker gene CLV3 was down-regulated in the meristem of woxl-D but accumulated in the other regions, i.e., in the root-hypocotyl junction and at the sites for lateral root initiation. The fact that the organ size and cell size in leaves of woxl-D are smaller than those in wild type suggests that cell expansion is possibly affected in order to have partially retarded the development of lateral organs, possibly through alteration of CLV3 expression pattern in the meristem. An S-adenosylmethionine decarboxylase （SAMDC） protein, SAMDC1, was found able to interact with WOX1 by yeast two-hybrid and pull-down assays in vitro. HPLC analysis revealed a significant reduction of polyamine content in woxl-D. Our results suggest that WOX1 plays an important role in meristem development in Arabidopsis, possibly via regulation of SAMDC activity and polyamine homeostasis, and/or by regulating CLV3 expression.

关键词： WOX CLV3 meristems polyamines SAMDC Arabidopsis.

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Transparent conducting properties of c-axis-oriented NaxCoO2 epitaxial thin films

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Science China(Physics,Mechanics & Astronomy) 2018年第10期61卷 104-107页

作者： DaChao yuan JiangLong Wang Nian FU XiaoLin wu yueJin Ma ShuFang Wang College of Mechanical and Electrical Engineering Agricultural University of Hebei Baoding 071001 China Hebei Key Lab of Optic-electronic Information and Materials College of Physics Science and Technology Hebei University Baoding 071002 China

Transparent conducting oxides(TCOs)have attracted intensive attention because of their broad application in photoelectric devices such as solar cells,light-emitting diodes,and flat-panel *** TCOs used in industry,including tin(IV)oxide(SnO_2),indium oxide(In_2O_3),indium tin oxide(ITO),and zinc oxide(ZnO),are primarily n-type semiconductors[1-3].Suitable p-type TCOs are still

关键词：取向附生锌氧化物性质电影太阳能电池 TCO 应用程序 MoO3

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Stabilization of Pattern in Complex Ginzburg-Landau Equation with Spatial Perturbation Scheme

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Communications in Theoretical Physics 2008年第6期49卷 1541-1546页

作者： MA Jun yI Ming ZHANG Li-Ping JIN wu-yin LI yan-Long School of Sciences Lanzhou University of Technology Lanzhou 730050 China Department of Physics and Institute of Biophysics Central China Normal University Wuhan 430079 China College of Mechano-Electronic Engineering Lanzhou University of Technology Lanzhou 730050 China

在这篇论文，空间不安的一个新计划被建议在摆动的媒介稳定模式，它能与复杂 Ginzburg 四轮马车方程被描述。数字模拟结果证实螺线飘动，在复杂 Ginzburg 四轮马车方程的反螺线波浪和空间与时间的混乱能被压制，并且计划也与保守的域理... 详细信息

在这篇论文，空间不安的一个新计划被建议在摆动的媒介稳定模式，它能与复杂 Ginzburg 四轮马车方程被描述。数字模拟结果证实螺线飘动，在复杂 Ginzburg 四轮马车方程的反螺线波浪和空间与时间的混乱能被压制，并且计划也与保守的域理论被讨论。而且，空间与时间的噪音也被介绍进整个媒介，它就证实它对空间与时间的噪音柔韧。

关键词：螺旋形波反螺旋波螺旋湍流空间干扰

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Attaining the liquid helium temperature with a compact pulse tube cryocooler for space applications

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Science China(Technological Sciences) 2020年第3期63卷 434-439页

作者： LIU XuMing CHEN LiuBiao wu XianLin yANG Biao WANG Jue ZHU WenXiu WANG JunJie ZHOU yuan Key Laboratory of Cryogenics Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Recent breakthroughs in space science have motivated space exploration programs in many countries including China. Cryocoolers, which provide the mandatory low-temperature environment for many sensitive yet delicate space detectors, are crucial for the proper functioning of various systems. One benchmark for the cryocooler performance is attaining the liquid helium temperature. However, even with complex configurations and multiple driving sources, only a few cryocoolers to date can achieve this goal. Here we report a high-frequency pulse tube cryocooler(HPTC) driven by a single non-oil-lubrication compressor which is capable of reaching the liquid helium temperature while offering other advantages such as high compactness, excellent reliability and high efficiency. The HPTC obtains a no-load temperature of 4.4 K, which is the first realization of cooling below the4 He critical point with a gas-coupled two-stage arrangement. The prototype can provide a cooling power of 87 mW at 8 K, and 5.2 mW at 5 K with a 425 W input electric power, showing leading-level efficiency. Moreover, we demonstrate the ability of the cryocooler to simultaneously provide cooling power at different temperature levels to meet different requirements. Therefore, the prototype developed here could be a promising cryocooler for space applications and beyond.

关键词： cryocooler liquid helium temperature space exploration high frequency

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