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A chitosan/amido-graphene oxide-based self-powered humidity sensor enabled by triboelectric effect

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Rare Metals 2021年第8期40卷 1995-2003页

作者： Bo-Hao Liu Guang-zhong Xie Cheng-zhen Li Si Wang zhen Yuan Zai-Hua duan Ya-Dong Jiang Hui-Ling Tai State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu610054China

In this work,amido-graphene oxide(GO-NH_(2))loaded chitosan(CTS)composite material(CTS/GO-NH_(2))that acts as both the triboelectric and sensing film was prepared on rotary fan-shaped triboelectric nanogenerator for humidity *** with the pristine CTSbased triboelectric humidity sensor(CTS-THS)and GONH_(2)-THS,the CTS/GO-NH_(2)-based humidity sensor exhibited higher humidity response and better linearity in the relative humidity(RH)range of 18.7%RH-91.5%*** above results can be explained by the massive exposed and less concealed hydrophilic functional groups of CTS with the help of the wrinkle structure of GO-NH_(2).Meanwhile,the CTS/GO-NH_(2)-THS possessed good repeatability and acceptable hysteresis(~6.2%RH).Finally,a humidity sensing mechanism coupling triboelectric contact charging effect with electrons transfer principle under moisture environment was established to interpret the enhanced humidity sensing performance of the composite film-based *** work demonstrates that CTS/GONH_(2) composite film can be utilized to fabricate humidity sensors based on the triboelectric effect.

关键词： Chitosan Amido-graphene oxide Triboelectric nanogenerator Humidity sensors Hydrogen bonding interaction

Reply to Shanmugam,G.“Review of research in internal-wave and internal-tide deposits of China:Discussion”

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Journal of Palaeogeography 2014年第4期3卷 351-358页

作者： zhen-zhong Gao You-Bin He Xiang-Dong Li Tai-zhong duan School of Geosciences Yangtze University School of Land Resource Engineering Kunming University of Science and Technology Petroleum Production and Research Institute of SINOPEC

We are glad to know that our paper ＂Review of research in internal-wave and internal-tide deposits of China＂（Gao et al., 2013） published in Journal of Palaeogeography has attracted close attention of international peers, and we noted that Shanmugam has provided a critical assessment of our paper. He claimed that ＂interpretations of ten ancient exam- ples in China and one in the central Appalachians （USA） as deep-water deposits of internal waves and internal tides are unsustainable＂, among many other comments and criticisms, and he concluded that ＂any interpretation of ancient strata as deposits of internal waves and internal tides is premature＂. This article is aimed at responding to his major criticisms. We believe that constructive discussions will benefit the development of the study in internal-wave and internal-tide deposits. Unfortunately, Shanmugam seems not to follow this line of scientific criticism, but is trying to reject all research results in this subject based on his illogical and inconsistent reasoning, and distortion of others＇ points of view. In this article, with facts and evidences, we will refuse the main wrong assertions of Shanmugam＇s, for example, ＂the use of bidirectional cross-bedding as evidence for deposition by baroclinic currents in outcrop studies is sedimentologically erroneous ＂ and ＂any interpretation of ancient strata as deposits of internal waves and internal tides is premature＂. We will also use typical characteristics of the ancient examples to demonstrate that they are certainly not turbidites, or contourites, or tsunami-related deposits, but internal-wave and internal-tide deposits as the most plausible to defend the rationality of our interpretation in our previous papers.

关键词： internal-wave and internal-tide deposits bidirectional cross-bedding sedi- mentary succession critical assessment

Temperature Effects on Properties of Bi(2223) High Temperature Superconducting Tapes

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Chinese Physics Letters 2001年第5期18卷 677-679页

作者： WANG zheng-Dao CHEN Zhao-Jia duan zhen-zhong WANG Wen-Quan Cryogenic Laboratory Chinese Academy of SciencesBeijing 100080 Institute of Physics Chinese Academy of SciencesBeijing 100080 Northwest Institute for Non-Ferrous Metal Research Xi’an 710016 Beijing General Research Institute for Non-Ferrous Metals Beijing 100080

The critical current density Jc and n-value have been studied from 40 K to critical temperature for four types of Bi-system 2223 tapes with different *** experimental results demonstrate that the change of Jc can be divided into three parts and n-value has some decrease with a decrease in *** engineering application,a proper working temperature can be selected to satisfy the practical ***,the temperature effects on critical stress for Ag-sheath tape was also *** results demonstrate that the critical stress does not change monotonously with a decrease in *** increases first,then decreases with the further decrease in temperature.

关键词： temperature. stress critical

CPL-active hybrid copper(Ⅰ)halides enabled by cation inclusion with chiral crown-ether

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Science China Chemistry 2024年第10期67卷 3283-3290页

作者： Peng Fan Li-Xuan Cai Xiao-Fang duan Fan Yin Chen-Chen Li zhong-Hua Deng Xiao-zhen Li Qing-Fu Sun College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350117China Strait Institute of Flexible Electronics(Future Technologies) Fujian Key Laboratory of Flexible ElectronicsFujian Normal University and Strait Laboratory of Flexible ElectronicsFuzhou 350117China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian College University of Chinese Academy of SciencesFuzhou 350002China

Chiral hybrid metal halides with high photoluminescence quantum yield(PLQY)and superior dissymmetry factor(g_(lum))are promising candidates for circularly polarized luminescence(CPL)emitting ***,it is a great challenge to achieve both high g_(lum)and large ***,we report a new supramolecular strategy to fabricate chiral hybrid Cu(Ⅰ)-halides with nearunity quantum yields and intense CPL *** dissymmetry factor can be dramatically modulated by tuning the hostguest *** to the chirality and variable conformations of the host-guest complexes,a series of chiral[G@L^(R/S)]_(2)Cu_(4)I_(6)have been *** incorporation of different cations within the chiral L^(R/S)hosts leads to variations of packing modes along the c-axis and different extent of distortions in the[Cu_(4)I_(6)]_(2)-*** them,[H_(3)O@L^(R/S)]+cations are stacked based on Van der Waals interactions and hierarchically self-assemble into a right/left-handed helix in[H_(3)O@L^(R/S)]_(2)Cu_(4)I_(6),which results in a high g_(lum)of-7×10^(-3)and a large PLQY of 96.92%.Notably,[G@L^(R/S)]_(2)Cu_(4)I_(6)shows promising applications in single-component white light emitting diodes(WLEDs),exhibiting a maximum dissymmetry factor of-1.2×10^(-3).The effective host-guest complexation and oriented hierarchical self-assembly provide an effective strategy for the development of high-performance CPL materials.

关键词： host-guest interaction circularly polarized luminescence copper iodide cluster hierarchical self-assembly chirality

Arabidopsis LOS5 Gene Enhances Chilling and Salt Stress Tolerance in Cucumber

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Journal of Integrative Agriculture 2013年第5期12卷 825-834页

作者： LIU Li-ying duan Liu-sheng ZHANG Jia-chang MI Guo-quan ZHANG Xiao-lan ZHANG zhen-xian REN Hua-zhong College of Agronomy and Bio-Technology China Agricultural University Horticulture Institute Henan Academy of Agricultural Sciences

Low temperature and high salinity are the major abiotic stresses that restrict cucumber growth and production, breeding materials with multiple abiotic resistance are in greatly need. Here we investigated the effect of introducing the LOS5 gene, a key regulator of ABA biosynthesis in Arabidopsis thaliana, under the stress-responsive RD29A promoter into cucumber （Cucumis sativus L. cv. S516）. We found that T1 RD29A-LOS5 transgenic lines have enhanced tolerance to cold and salt stresses. Specifically, transgenic lines exhibited dwarf phenotypes with reduced leaf number, shorter internode, decreased length of the biggest leaf, fewer female flowers, shorter fruit neck and lower vitamin C （Vc）. The increased cold tolerance can be reflected from the significantly decreased cold index, the reduced electrolyte leakage index and the MDA content upon cold treatment as compared to those in the control. This may result from the accumulation of internal ABA, soluble sugars and proline, and the enhanced activities of protective enzymes superoxide dismutase （SOD）, peroxidase （POD） and catalase （CAT） in the transgenic lines. Under salt treatment, the transgenic lines exhibited increased germination index, vigor index, more lateral roots and increased root fresh weight. Moreover, RD29A-LOS5 transgenic plants displayed quicker responses in salt stress than that in low-temperature stress.

关键词： ABA low-temperature stress LOS5 transgenic plant cucumber salt stress

Identification of proteins associated with Fusarium crown rot resistance in wheat using label-free quantification analysis

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Journal of Integrative Agriculture 2021年第12期20卷 3209-3221页

作者： JIN Jing-jing duan Shuo-nan Ql Yong-zhi zhen Wen-chao MA Jun College of Plant Protection Hebei Agricultural UniversityBaoding 071001P.R.China State Key Laboratory of North China Crop Improvement and Regulation Baoding 071001P.R.China College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193P.R.China College of Agronomy Hebei Agricultural UniversityBaoding 071001P.R.China

Fusarium crown rot(FCR),typically caused by Fusarium pseudograminearum,is a severe soil-borne disease that,in recent years,has become an emerging threat to Chinese wheat *** the first time in this study,we investigated and compared the proteomic characteristics of two Chinese wheat varieties(04 zhong 36 and Xinmai 26)at 24,48,and 72 h post-inoculation using label-free quantitative proteomic analysis.A total of 9234 proteins were successfully quantified,of which 783 were differentially expressed after *** proteins were mainly involved in metabolic,single-organism,and cellular ***-three proteins associated with defense,cell wall formation,photosynthesis,etc.,showed consistently different expression between the two genotypes at multiple time *** particular,chitinase,which degrades chitin in the fungal cell wall and limits fungal growth,was exclusively and consistently upregulated in 04 zhong 36 across the three time *** proteins such as flavonoid O-methyltransferase,glycosyltransferase,and peroxidase were only upregulated in 04 zhong 36,and proteins,including the berberine bridge enzyme and rubisco large subunit-binding protein,were specifically downregulated in Xinmai *** expression of transcripts encoding eight selected proteins through qRT-PCR analysis supported the proteomic ***,the results of this study allow us to understand FCR resistance in wheat at the protein *** proteins and their corresponding genes may be useful resources for the genetic improvement of FCR resistance in wheat.

关键词： wheat Fusarium crown rot proteomic differential expression multiple time points

Deployment and application of ERP service on grid

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通讯和计算机（中英文版） 2008年第5期5卷 52-55,65页

作者： GAO zhong-wen duan Rui-zhen JIANG Dong College of Automation Harbin University of Science and Technology Harbin 150080 China

Integrated transcriptome and metabolite profiling highlights the role of benzoxazinoids in wheat resistance against Fusarium crown rot

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The Crop Journal 2022年第2期10卷 407-417页

作者： Shuonan duan Jingjing Jin Yutian Gao Changlin Jin Junyi Mu Wenchao zhen Qixin Sun Chaojie Xie Jun Ma College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China Institute of Genetics and Physiology Hebei Academy of Agriculture and Forestry SciencesShijiazhuang 050051HebeiChina College of Agronomy Hebei Agricultural UniversityBaoding 071001HebeiChina Hebei Plant Protection and Quarantine General Station Shijiazhuang 050051HebeiChina

Fusarium crown rot(FCR), caused by Fusarium spp., is a chronic and severe plant disease worldwide. In the last years, the incidence and severity of FCR in China has increased to the point that it is now considered a threat to local wheat crops. In this study, for the first time, the metabolites and transcripts responsive to FCR infection in the partial resistant wheat cultivar 04 zhong 36(04 z36) and susceptible cultivar Xinmai 26(XM) were investigated and compared at 20 and 25 days post inoculation(dpi). A total of 443 metabolites were detected, of which 102 were significantly changed because of pathogen *** of these 102 metabolites belonged to the flavonoid, phenolic acid, amino acid and derivative *** metabolites, such as proline betaine, lauric acid, ribitol, and arabitol, were stably induced by Fusarium pseudograminearum(Fp) infection at two time points and may have important roles in FCR resistance. In line with the reduced seedling height of 04 z36 and XM plants, RNA-seq analysis revealed that FCR infection significantly affected the photosynthesis activities in two cultivars. Furthermore, 15 jasmonate ZIM-domain genes(JAZ) in the significantly enriched ‘regulation of jasmonic acid mediated signaling pathway’ in 04 z36 were down-regulated. The down-regulation of these JAZ genes in 04 z36 may cause a strong activation of the jasmonate signaling pathway. Based on combined data from gene expression and metabolite profiles, two metabolites, benzoxazolin-2-one(BOA) and 6-methoxy-benzoxazolin-2-one(MBOA), involved in the benzoxazinoid-biosynthesis pathway, were tested for their effects on FCR resistance. Both BOA and MBOA significantly reduced fungal growth in vitro and in vivo, and, thus, a higher content of BOA and MBOA in 04 z36 may contribute to FCR resistance. Above all, the current analysis extends our understanding of the molecular mechanisms of FCR resistance/susceptibility in wheat and will benefit further efforts for the genetic imp

关键词： Fusarium crown rot Wheat Metabolites Transcript Benzoxazinoid

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双压蒸发有机朗肯循环系统?分析

工程热物理学报 2019年第7期40卷 1458-1464页

作者：李健段远源杨震葛众清华大学能源与动力工程系热科学与动力工程教育部重点实验室

双压蒸发循环包含两个不同压力的蒸发过程和一个定压冷凝过程,可有效提高热功转换效率并具有较强的热源适应性,是有机朗肯循环领域新兴的研究热点。本文针对纯工质双压蒸发有机朗肯循环系统开展拥分析,定量化探究其吸热过程及循环整体... 详细信息

双压蒸发循环包含两个不同压力的蒸发过程和一个定压冷凝过程,可有效提高热功转换效率并具有较强的热源适应性,是有机朗肯循环领域新兴的研究热点。本文针对纯工质双压蒸发有机朗肯循环系统开展拥分析,定量化探究其吸热过程及循环整体的热力学完善度,揭示系统中的[火用]损分布特性.结果表明:循环吸热过程?损及其热力学完善度的变化规律与工质临界温度密切相关.双压蒸发循环可显著减少吸热过程[火用]损,提升循环的热力学完善度;但当热源温度较低时,吸热过程仍然是[火用]损最多的热力过程。随热源温度升高,限制热功转换效率提高的关键热力过程将发生改变。当高压级蒸发器的过热度较大时,减少过热降温过程[火用]损变得至关重要。

关键词：有机朗肯循环双压蒸发 [火用]分析热功转换