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| 1 | Response to paleoatmospheric CO_2 concentration of Solenites vimineus(Phillips)Harris(Ginkgophyta)from the Middle Jurassic of the Yaojie Basin,Gansu Province,China显示文摘Solenites vimineus (Phillips) Harris (Ginkgophyta) specimens with well-preserved cuticles were collected from five different beds in the oil shale member of the Middle Jurassic Yaojie Formation in the Yaojie Basin, Gansu Province, northwestern China. Gross morphology and fine structures of the fossil leaves were studied, and stomatal parameters were analyzed, according to which, the paleoatmospheric CO2 concentration can be deduced as 1512-1896 ppm that would have caused an increase in mean temperature of about 6.5-7.4℃. Carbon isotopes from the fossils indicate that the carbon isotopic discrimination and water use efficiency (WUE) of S. vimineus were raised nearly obtaining the ideal physiologic state in increased CO2 concentrations and temperature conditions, suggesting that S. vimineus records the paleoenvironmental information of the Middle Jurassic Yaojie Basin and can be used for environmental reconstruction. | YAN DeFei SUN BaiNian XIE SanPing LI XiangChuan WEN WenWen | 2009 | Science China Earth Sciences2009，52，12： | 13 |
| 2 | From Monovalent to Multivalent Vaccines, the Exploration for Potential Preventive Strategies Against Hand, Foot, and Mouth Disease(HFMD)显示文摘Hand,foot,and mouth disease(HFMD)recently emerged as a global public threat.The licensure of inactivated enterovirus A71(EV-A71)vaccine was the first step in using a vaccine to control HFMD.New challenges arise from changes in the pathogen spectrum while vaccines directed against other common serotypes are in the preclinical stage.The mission of a broad-spectrum prevention strategy clearly favors multivalent vaccines.The development of multivalent vaccines was attempted via the simple combination of potent monovalent vaccines or the construction of chimeric vaccines comprised of epitopes derived from different virus serotypes.The present review summarizes recent advances in HFMD vaccine development and discusses the next steps toward a safe and effective HFMD vaccine that is capable of establishing a crossprotective antibody response. | Xiangchuan He Miaomiao Zhang Chen Zhao Peiyong Zheng Xiaoyan Zhang Jianqing Xu | 2021 | Virologica Sinica2021，36，2： | 13 |
| 3 | Paliurus(Paliureae,Rhamnaceae) from the Miocene of East China and its Macrofossil-based Phylogenetic and Phytogeographical History显示文摘The extant genus Paliurus Miller is divided into P.ramosissimus and P.spina-christi groups and is diagnostically characterized by distinctive orbicular-winged fruits with a trilocular(or often bilocular) ovary and basally triveined leaves with a subentire to serrate margin.Here,structurally preserved winged fruits and associated compressed leaves of Paliurus(Paliureae,Rhamnaceae) are reported from the Middle-Upper Miocene Shengxian Formation of Tiantai,Zhejiang,eastern China.The fruits can be identified as Paliurus microcarpa Xiang-Chuan Li sp.nov.,the diagnostic characters of external morphology and anatomy of which differ from those of both extant and fossil generic members;the leaves can be designated as Paliurus sp.The species based on winged fruits,P.mkrocarpa,might represent an ancient intermediate link exclusively known across the P.ramosissimus and P.spina-christi groups,showing a closer affinity to the P.ramosissimus group based on the resemblant smaller fruits with a narrower wing,and to the P.spina-christi group based on the similar wing structure and texture,respectively.Morphological analyses of the present and previous fossil fruit records around the world indicate that diversification of Paliurus had begun in northern transpacific regions by the Late Eocene.The macrofossil records,i.e.,fruits and leaves of Paliurus globally when projected on paleoenvironmental maps in view of changing continental positions through time(from Eocene to Miocene) display that the past distribution of the genus was much wider than the present and belongs to a tropical and warm temperate realm of the Northern Hemisphere.Therefore,the modern restricted disjunction in tropical and warm temperate regions of East Asia and South Europe(even eastwards West Asia) might represent glacial refugia for some of the generic ancient lineages to survive severe cold at least since the terminal Pliocene. | LI Xiangchuan WANG Haofei LENG Qin XIAO Liang GUO Junfeng HE Wenlong | 2014 | Acta Geologica Sinica(English Edition)2014，88，5： | 5 |
| 4 | Anatomical variations of living and fossil Liquidambar leaves:A proxy for paleoenvironmental reconstruction显示文摘Based on living L.formosana,we have established that such epidermal cell properties as epidermal cell circumference(Circum.) ,undulation index(UI) ,epidermal cell area(EA) on both upper and lower epidermis and the corresponding epidermal cell density(ED) ,are suitable to differentiate between sun and shade leaves.Also,stomatal properties on the lower epidermis,including stomatal length(SL) ,stomatal pore length(PL) and the corresponding stomatal density(SD) ,are reliable parameters to identify sun/shade morphotypes.Then this anatomical approach was applied to 18 leaf remains of L.miosinica from the Miocene Xiannanshan Formation,Zhejiang Province(eastern China) ,and the fossil leaves were sorted into two groups,namely,sun and shade morphotypes.It indicates that anatomical differences between sun and shade leaves found in living species could be used for fossil leaves.Notably,the variation of UI between sun and shade morphotypes is larger on the upper epidermis as compared with the lower epidermis,showing that the UI on the upper epidermis is more sensitive to environmental changes.In addition,anatomical features are more variable in sun leaves than in shade leaves for both modern and fossil Liquidambar,suggesting sun leaves may be more sensitive to environmental changes.Sun leaves can then be a better indicator of paleoenvironmental change.Thus,stomatal parameters of sun morphotype should be adopted on reconstructing paleoenvironments using Liquidambar leaf remains.On the other hand,the three-lobed fossil L.miosinica leaf assemblage in the Xiananshan Formation is represented by an almost similar percentage of sun and shade morphotypes(56%and 44%,respectively) ,which is attributed to the short transport before deposition.As a result,identifying sun/shade morphotypes are very useful in reconstructing paleoenvironments based on fossil leaves of Liquidambar. | XIAO Liang SUN BaiNian LI XiangChuan REN WenXiu JIA Hui | 2011 | Science China Earth Sciences2011，54，4： | 4 |
| 5 | Large-area Flexible Organic Solar Cells: Printing Technologies and Modular Design显示文摘Flexibility is the most prominent advantage of organic solar cells(OSCs) compared with traditional photovoltaic devices, showing an irreplaceable commercial potential. Currently, the maximum power conversion efficiencies(PCEs) of single-junction OSCs have been over 19% and 16% upon rigid and flexible substrates, respectively, which meet the criteria for commercial application. Extensive research efforts are under way, such as device configuration design, interface/photosensitive layer synthesis, transparent electrode modification and printing technology innovation, however, the reasonable selection of printing technologies, the huge performance loss of large-area printing process and the structural design of flexible modules are still the bottlenecks, limiting the commercialization of OSCs. This review focuses on the technical challenges and rational modular configuration design for printing preparation of flexible high-efficiency large-area organic devices, from the aspects of the functional layer material selection, printing process research status and large-scale efficiency losses. These will promote the integrated applications of printable organic semiconductor materials for next-generation clean energy and appeal extensive attentions in wearable electronics, building-integrated photovoltaics and Internet of Things, etc. | Xiangchuan Meng Zhi Xing Xiaotian Hu Yiwang Chen | 2022 | Chinese Journal of Polymer Science2022，40，12： | 2 |
| 6 | Effect of Outer Carbon Layer Thickness of Carbon-covered N-doped Hollow Carbon Nanospheres on Its Electrocatalytic Performance显示文摘Hollow nitrogen-doped porous carbon materials covered with different thicknesses of carbon layers were synthesized to assist evaluation of the influence of nitrogen atom on the surrounding carbon atoms.The designed carbon-based materials were synthesized through pyrolysis of surface-attached block copolymer layers on silica nanoparticles with different thicknesses of the second block of grafted polymer chains,followed by removal of silica templates.The experimental results reveal that coverage a carbon layer with proper thickness can improve the oxygen reaction reduction activity of nitrogen-doped carbon materials as evidenced by the positive shift of half-wave potential in linear scanning voltammetry response curves.The conclusions may provide a reference work on understanding the active sites and designing materials with superior electrochemical performance. | TAO Bowen PAN Xiangchuan 张海宁 | 2021 | Journal of Wuhan University of Technology(Materials Science)2021，36，2： | 2 |
| 7 | A non-wetting and conductive polyethylene dioxothiophene hole transport layer for scalable and flexible perovskite solar cells显示文摘The regulated crystallization of perovskite and highly repeatable preparation are decisive challenges for large-scale flexible perovskite solar cells(PSCs).Herein,we synthesize an oil-soluble poly(3,4-ethylenedioxythiophene)(Oil-PEDOT)as a hole transport layer(HTL).The non-wetting Oil-PEDOT HTL can promote the quality of large-area flexible perovskite films because of its optimized crystallinity and printability.The Oil-PEDOT layer also delivers desirable conductivity and charge transport without a complex doping.Consequently,the flexible PSCs with Oil-PEDOT HTL achieve an efficiency of 19.51%and 16.70%based on 1.05 and 22.50 cm^(2),respectively.Moreover,these large-scale flexible PSCs demonstrate remarkable mechanical robustness,and the efficiency exhibits 93%retention after 7,000 bending cycles.These results show that the Oil-PEDOT is a potentially efficient HTL for fabricating efficient large-scale flexible PSCs. | Chenxiang Gong Lin Zhang Xiangchuan Meng Zhi Xing Li Rao Hongyu Wang Zengqi Huang Licheng Tan Ting Hu Xiaotian Hu Yiwang Chen | 2021 | Science China Chemistry2021，64，5： | 1 |
| 8 | Biomolecular Preservation of Miocene Fossil Liquidambar from Tiantai,China and Clarkia,USA:Implications for Palaeoenvironmental Study显示文摘Biomolecular characteristics of fossil Liquidambar from the Miocene Shengxian Formation, Tiantai, Zhejiang province in eastern China and Miocene Clarkia sediment, Idaho, U.S.A., are obtained by means of Pyrolysis-Gas chromatography-Mass spectrometry analysis(Py-GC-MS). Their modern equivalent(Liquidambar formosana) collected from Nanjing, eastern China, is also analyzed for comparison. The total ion chromatograms(TIC) of modern L. formosana leaves shows abundant pyrolysates of lignin, polysaccharide, aliphatic acid, and amino acid. However, only one polysaccharide molecule, i.e., levoglucosan, is retained in fossil Liquidambar leaves from the two Miocene sites with the Tiantai specimen possessing higher intensity. As expected, some lignin pyrolysates including benzene, phenol, guaiacol, vinylphenol and their derivatives, are detected in Miocene Tiantai L. miosinica. However, the lignin components with large molecular weight other than benzene and phenol compounds, are absent in Miocene Clarkia L. pachyphyllum. Abundant pristene and homologous series of n-alk-1-ene/n-alkane pairs with a long retention time are shown in pyrograms of both Tiantai and Clarkia fossils. Based upon our Py-GC-MS data, the molecular preservation in these Liquidambar leaf samples can be ranked as the following(from high to low quality respectively): modern sample >Tiantai sample >Clarkia sample. Vinyl phenol, an important compound, is present in modern and Tiantai Liquidambar leaves, while absent in Clarkia sample, implying that vinyl phenol may be sourced from lignin for Liquidambar leaves. Our data support the hypothesis of in situ polymerization for the origin of long-chain homologous series of n-alk-1-ene/nalkane pairs as leaf alteration products. Our data have implications of the impact of leaf degradation toward biases for palaeoenvironmental reconstruction using stable carbon isotope of fossil plants, and suggest the importance of evaluating molecular preservation of fossil leaf tissues prior to the application of carbon isotope compositions of fossil leaves. | XIAO Liang YANG Hong HE Yuli HE Wenlong LI Xiangchuan GUO Junfeng HUI Kaixuan | 2015 | Acta Geologica Sinica(English Edition)2015，89，4： | 1 |
| 9 | Stable isotope compositions of recent and fossil sun/shade leaves and implications for palaeoenvironmental reconstruction显示文摘 | Liang Xiao Hong Yang Bainian Sun Xiangchuan Li Junfeng Guo | 2012 | Review of Palaeobotany and Palynology2012，，： | 1 |
| 10 | Leaf macrofossils of Ilex protocornuta sp. nov. (Aquifoliaceae) from the Late Miocene of East China: Implications for palaeoecology显示文摘 | Xiangchuan Li Bainian Sun Liang Xiao Jingyu Wu Zhicheng Lin | 2010 | Review of Palaeobotany and Palynology2010，，1： | 1 |
| 11 | DR3TBDTT Based Ternary Blends Containing Conjugated Polymers: Crystallization Determines Morphology and Performance显示文摘 | Jingping Yin Weihua Zhou Qingyun Ai Xiangchuan Meng Siqi Liu Zoukangning Yu Jianrong Zeng Yiwang Chen | 2018 | Chinese Journal of Chemistry2018，36，5： | 1 |
| 12 | Functional comparison of primacy,middle and recency retrieval in human auditory short-term memory: an event-related fMRI study显示文摘 | Daren Z Zhihao L Xiangchuan C | 2003 | Brain Res Cogn Brain Res2003，16，： | 1 |
| 13 | Influence of optical pulse width on the perturbation detection performance of polarization-optical time domain reflectometer显示文摘 | Wang Feng Wang Xiangchuan Zhang Xuping | 2012 | Applied Optics2012，51，35： | 1 |
| 14 | Cloning and characterization of an apolipoprotein C2 promoter in the mouse central nervous system显示文摘Apolipoprotein C2 is an important member of the apolipoprotein C family, and is a potent activator of lipoprotein lipase. In the central nervous system, apolipoprotein C2 plays an important role in the catabolism of triglyceride-rich lipoproteins. Studies into the exact regulatory mechanism of mouse apolipoprotein C2 expression have not been reported. In this study, seven luciferase expression vectors, which contained potential mouse apolipoprotein C2 gene promoters, were constructed and co-transfected with pRL-TK into HEK293T cells to investigate apolipoprotein C2 promoter activity. Luciferase assays indicated that the apolipoprotein C2 promoter region was mainly located in the +104 bp to +470 bp region. The activity of the different lengths of apolipoprotein C2 promoter region varied. This staggered negative-positive-negative arrangement indicates the complex regulation of apolipoprotein C2 expression and provides important clues for elucidating the regulatory mechanism of apolipoprotein C2 gene transcription. | Zhaoyang Li Bing Du Shengyang Li Xiangchuan Lv Shenglai Zhou Yang Yu Wei Wang Zhihong Zheng | 2013 | Neural Regeneration Research2013，8，2： | 1 |
| 15 | Fabrication of superhydrophobic coating via a facile and versatile method based on nanoparticle aggregates显示文摘 | Zhoukun He Meng Ma Xiangchuan Xu Jianying Wang Feng Chen Hua Deng Ke Wang Qin Zhang Qiang Fu | 2011 | Applied Surface Science2011，，7： | 1 |
| 16 | A functional MRI study of high-level cognition Ⅱ: The game of GO显示文摘 | Chen Xiangchuan Zhang D R Hu X P | 2003 | Cognitive Brain Research2003，16，： | 1 |
| 17 | Local factors determine the stabilization of monocular ambiguous and binocular rivalry stimuli显示文摘 | Chen Xiangchuan He S | 2004 | Current Biology2004，14，： | 1 |
| 18 | Synthesis, Cytotoxic Activity Evaluation of Novel 1,2,3-Triazole Linked Quinazoline Derivatives显示文摘一系列新奇 1,2,3-triazole-quinazoline 衍生物在由常规方法从 anthranilamide 开始的五步被综合。所有标题混合物 10a10r 在 vitro 用 MTT 试金与四根人的癌症房间线(MGC-803, EC-109, MCF-7 和 HGC-27 ) 为细胞毒素的活动被作比较。一些对对测试癌症房间线的有势力活动中等的展出的综合混合物。在他们之中,加重 10 h 和 10q 对 HGC-27 展出了优秀生长抑制,化合物 10 m 也对 MCF-7 拥有了优秀活动,与 IC 50 价值不到 1 慥敳漠 ? 桰瑯 ' 仪G矛棖 P 湥牥瑡潩 ? 桴湡 ?? 湚 ? 潭楤楦摥朠慲桰湥 ? 浳潯桴映汩 ?爠獥数瑣癩汥y ??? 幐吗?? | Panpan Song Fei Cui Na Li Jingchao Xin Qisheng Ma Xiangchuan Meng Chaojie Wang Qinpo Cao Yifei Gu Yu Ke Qiurong Zhang Hongmin Liu | 2017 | Chinese Journal of Chemistry2017，35，10： | 1 |
| 19 | First Asian fossil record of Platydictya (Amblystegiaceae) from the lower Miocene and its paleoenvironmental significance显示文摘Mosses form a diverse land plant group in modern vegetation but have rarely showed up in the fossil record compared with vascular plants. Here, we report an extraordinarily-preserved early Miocene moss fossil from the lower Laoliangdi Formation in the Pingzhuang Coal Mine in Chifeng, Inner Mongolia Autonomous Region, northern China. Although lacking rhizoids and most reproductive organs, the well-preserved fossil allows us to assign it to Platydictya cf. jungermannioides (Amblystegiaceae) based upon its detailed gross and micro-morphology. The diagnostic characteristics include a small-sized body with slender stems bearing spirally arranged ovate-lanceolate leaves that lack costae. Leaf margins are mostly partly entire and partly dentate, a few dentate, and rarely completely entire. It represents the first fossil record of Platydictya in Asia. The specific living microenvironment of the extant P. jungermannioides enriched our understanding of the early Miocene environment that was previously based upon vascular plant fossils and sedimentary lithofacies in the area. Our early Miocene Platydictya cf. jungermannioides fossil lived in a warm and humid lush forest with a dense understory that received adequate water supplies. | Liyan GUO Liang XIAO Ya LI Xiangchuan LI Qin LENG Nan SUN Junfeng GUO Chaofeng FU Jianan WANG Deshuang JI | 2023 | Frontiers of Earth Science2023，17，1： | 0 |
| 20 | Modified version of three-component model-based decomposition for polarimetric SAR data显示文摘A new hybrid Freeman/eigenvalue decomposition based on the orientation angle compensation and the various extended volume models for polarimetric synthetic aperture radar(PolSAR) data are presented. There are three steps in the novel version of the three-component model-based decomposition.Firstly, two special unitary transform matrices are applied on the coherency matrix for deorientation to decrease the correlation between the co-polarized term and the cross-polarized term.Secondly, two new conditions are proposed to distinguish the manmade structures and the nature media after the orientation angle compensation. Finally, in order to adapt to the scattering properties of different media, five different volume scattering models are used to decompose the coherency matrix. These new conditions pre-resolves man-made structures, which is beneficial to the subsequent selection of a more suitable volume scattering model.Fully PolSAR data on San Francisco are used in the experiments to prove the efficiency of the proposed hybrid Freeman/eigenvalue decomposition. | ZHANG Shuang YU Xiangchuan WANG Lu | 2019 | Journal of Systems Engineering and Electronics2019，30，2： | 0 |
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