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| 1 | Tomato SlAN11 regulates flavonoid biosynthesis and seed dormancy by interaction with bHLH proteins but not with MYB proteins显示文摘The flavonoid compounds are important secondary metabolites with versatile human nutritive benefits and fulfill a multitude of functions during plant growth and development.The abundance of different flavonoid compounds are finely tuned with species-specific pattern by a ternary MBW complex,which consists of a MYB,a bHLH,and a WD40 protein,but the essential role of SlAN11,which is a WD40 protein,is not fully understood in tomato until now.In this study,a tomato WD40 protein named as SlAN11 was characterized as an effective transcription regulator to promote plant anthocyanin and seed proanthocyanidin(PA)contents,with late flavonoid biosynthetic genes activated in 35S::SlAN11 transgenic lines,while the dihydroflavonol flow to the accumulation of flavonols or their glycosylated derivatives was reduced by repressing the expression of SlFLS in this SlAN11-overexpressed lines.The above changes were reversed in 35S::SlAN11-RNAi transgenic lines except remained levels of flavonol compounds and SlFLS expression.Interestingly,our data revealed that SlAN11 gene could affect seed dormancy by regulating the expressions of abscisic acid(ABA)signaling-related genes SlABI3 and SlABI5,and the sensitivity to ABA treatment in seed germination is conversely changed by SlAN11-overexpressed or-downregulated lines.Yeast two-hybrid assays demonstrated that SlAN11 interacted with bHLH but not with MYB proteins in the ternary MBW complex,whereas bHLH interacted with MYB in tomato.Our results indicated that low level of anthocyanins in tomato fruits,with low expression of bHLH(SlTT8)and MYB(SlANT1 and SlAN2)genes,remain unchanged upon modification of SlAN11 gene alone in the transgenic lines.These results suggest that the tomato WD40 protein SlAN11,coordinating with bHLH and MYB proteins,plays a crucial role in the fine adjustment of the flavonoid biosynthesis and seed dormancy in tomato. | Yongfeng Gao Jikai Liu Yongfu Chen Hai Tang Yang Wang Yongmei He Yongbin Ou Xiaochun Sun Songhu Wang Yinan Yao | 2018 | Horticulture Research2018，5，1： | 13 |
| 2 | An Epidemic of Hepatitis A--Liaoning Province,2020显示文摘What is already known about this topic?Hepatitis A(HA)is caused by acute hepatitis A virus(HAV)infection and was once very common in China.Following the 2008 introduction of the HA vaccine into the national Expanded Program on Immunization(EPI),the incidence of reported HA in China decreased markedly.However,HA epidemics still occur in Liaoning Province every 3–5 years,although with far fewer cases than in the pre-HA-vaccination era.What is added by this report?Between January 1,2020 and March 18,2020,the number of reported cases of HA in Dalian and Dandong cities of Liaoning Province increased significantly compared with the same period in previous years.All cases were sporadic,and cases were seen in nearly every township.The increase in HA occurred one month after local fresh seafood became available with most cases being among adults.A casecontrol study showed that consuming raw or undercooked seafood,clams,snapping shrimp,and oysters were significantly associated with the increase in HA.What are the implications for public health practices?Strengthening health education for residents to avoid consumption of raw seafood and encouraging HAV vaccination of adults aged 20 to 54 years are important to prevent periodic HAV endemic outbreaks.Further multisectoral cooperation must be emphasized on HA surveillance in areas with a high prevalence of HA. | Jing Sun Yuanqiu Li Xing Fang Yan Wang Yinan Han Yang Liu Jingyuan Cao Wenting Zhou Hui Zheng Wenqing Yao | 2020 | China CDC weekly2020，2，30： | 7 |
| 3 | Glycosylation of dentin matrix protein 1 is a novel key element for astrocyte maturation and BBB integrity显示文摘血大脑障碍(BBB ) 是在 endothelial 房间和星形细胞之间形成的一条紧密的边界,它在循环把大脑与大多数病原体以及神经毒素分开并且保护。然而,详细说明了涉及 BBB 的形成的分子的播放器完全不被知道。牙质矩阵蛋白质 1 (DMP1 )-proteoglycan (PG ) 被知道涉及骨头和牙质的矿化作用,也与未知功能包括大脑在软纸巾被表示。在现在的学习,我们报导 DMP1-PG 在大脑星形细胞被表示并且在 BBB 充实单位。DMP1 的唯一的 glycosylation 地点在在鼠标的蛋白质的 N 终端域是 serine89 (S89 ) 。有 DMP1 的变异的老鼠削尖把 S89 改变到 glycine (S89G ) 的变化,它蛋白质的完全根除的 glycosylation,表明的严重 BBB 混乱。DMP1 变异的鼠标的另一个品种,缺乏 DMP1 的 C 终端域,表明了正常 BBB 功能。S89G-DMP1 星形细胞的极性被破坏,房间房间粘附被松开。通过一组分析,我们发现 DMP1 glycosylation 极其在 vitro 并且在 vivo 为星形细胞成熟被要求。S89G-DMP1 变异的星形细胞没能表示 aquaporin 4 并且减少了 laminin 和 ZO1 表示,它导致了 BBB 的混乱。有趣地,在 nestin 倡导者驾驶的老鼠大脑的野类型的 DMP1-PG 的 overexpression 在野类型层次以外提高了 laminin 和 ZO1 表示并且能有效地抵抗的静脉内的导致甘露糖醇的 BBB 可逆的洞。一起拿,我们的学习不仅揭示了一个新奇元素,即, DMP1-PG,调整了 BBB 形成,而且把新功能分到 DMP1-PG。 | Bo Jing Chunxue Zhang Xianjun Liu Liqiang Zhou Jiping Liu Yinan Yao Juehua Yu Yuteng Weng Min Pan Jie Liu Zuolin Wang Yao Sun Yi Eve Sun | 2018 | Protein & Cell2018，9，3： | 5 |
| 4 | Crustal P-wave velocity structure in the northeastern margin of the Qinghai-Tibetan Plateau and insights into crustal deformation显示文摘The transitional area between the northeastern margin of the Qinghai-Tibetan Plateau, Ordos Block and Alxa Block,also being the northern segment of the North-South Seismic Belt, is characterized by considerably high seismicity level and high risk of strong earthquakes. In view of the special tectonic environment and deep tectonic setting in this area, this study used two seismic wide-angle reflection/refraction cross profiles for double constraining, so as to more reliably obtain the fine-scale velocity structure characteristics in both the shallow and deep crust of individual blocks and their boundaries in the study area,and further discuss the seismogenic environment in seismic zones with strong historical earthquakes. In this paper, the P-wave data from the two profiles are processed and interpreted, and two-dimensional crustal velocity structure models along the two profiles are constructed by travel time forward modeling. The results show that there are great differences in velocity structure,shape of intra-crustal interfaces and crustal thickness among different blocks sampled by the two seismic profiles. The crustal thickness along the Lanzhou-Huianbu-Yulin seismic sounding profile(L1) increases from ~43 km in the western margin of Ordos Block to ~56 km in the Qilian Block to the west. In the Ordos Block, the velocity contours vary gently, and the average velocity of the crust is about 6.30 km s-1; On the other hand, the velocity structures in the crust of the Qilian Block and the arclike tectonic zone vary dramatically, and the average crustal velocities in these areas are about 0.10 km s-1 lower than that of the Ordos Block. In addition, discontinuous low-velocity bodies(LVZ1 and LVZ2) are identified in the crust of the Qilian Block and the arc-like tectonic zone, the velocity of which is 0.10–0.20 km s-1 lower than that of the surroundings. The average crustal thickness of the Ordos Block is consistently estimated to be around 43 km along both Profile L2(Tongchuan-Huianbu-Alashan left banner seismic sounding profile) and Profile L1. In contrast to the gently varying intra-crustal interfaces and velocity contours in the Ordos Block along Profile L1, which is a typical structure characteristic of stable cratons, the crustal structure in the Ordos Block along Profile L2 exhibits rather complex variations. This indicates the presence of significant structural differences in the crust within the Ordos Block. The crustal structure of the Helan Mountain Qilian Block and the Yinchuan Basin is featured by 'uplift and depression' undulations, showing the characteristics of localized compressional deformation.Moreover, there are low-velocity zones with alternative high and low velocities in the middle and lower crust beneath the Helan Mountain, where the velocity is about 0.15–0.25 km s-1 lower than that of the surrounding areas. The crustal thickness of the Alxa Block is about 49 km, and the velocity contours in the upper and middle-lower crust of the block vary significantly. The complex crustal velocity structure images along the two seismic sounding profiles L1 and L2 reveal considerable structural differences among different tectonic blocks, their coupling relationships and velocity structural features in the seismic zones where strong historical earthquakes occurred. The imaging result of this study provides fine-scale crustal structure information for further understanding the seismogenic environment and mechanism in the study area. | Shuaijun WANG Baojin LIU Xiaofeng TIAN Baofeng LIU Xianghui SONG Xiaoguo DENG Yinan SUN Cejun MA Yudong YANG | 2018 | Science China Earth Sciences2018，61，9： | 3 |
| 5 | Self-template formation of porous yolk-shell structure Mo-doped NiCo2O4 toward enhanced lithium storage performance as anode material显示文摘Hollow ternary metal oxides have shown enormous potential in lithium-ion batteries(LIBs),which is ascribed to their complex chemical composition,abundant active defect sites,and the synergy effect be-tween metals.In this work,we synthesized Mo-doped NiCo_(2)O_(4) porous spheres with yolk-shell structure by using a simple self-templating method.Surprisingly,other than the yolk-shell structure we had ob-tained,the inner core of the yolk-shell was also porous,which could fully enhance the electrolyte infil-tration and promote the transmission of lithium ions(Li+)and electrons(e−).The diameter of the porous core in the yolk-shell sphere was about 530 nm,and the outer shell’s thickness was up to 110 nm.In addition,the unique pores in the core appeared in the diameter of about 85 nm.With this structure,the volume expansion of the anode could be well inhibited during charge/discharge.It exhibited prominent electrochemical performance with high reversible capacity(1338 mA h g^(−1) at 100 mA g^(−1)),satisfactory cycle life(1360 mA h g^(−1) after 200 cycles at 100 mA g^(−1)),and exceptional rate capability(820 mA h g^(−1) at 2000 mA g^(−1))as anode material in LIBs. | Yongqiang Ren Xiuyan Li Yinan Wang Qinghua Gong Shaonan Gu Tingting Gao Xuefeng Sun Guowei Zhou | 2022 | Journal of Materials Science & Technology2022，，7： | 3 |
| 6 | Single-cell transcriptomics reveals gene signatures and alterations associated with aging in distinct neural stem/progenitor cell subpopulations显示文摘Aging associated cognitive decline has been linked to dampened neural stem/progenitor cells (NSC/NPCs) activities manifested by decreased proliferation, reduced propensity to produce neurons, and increased differentiation into astrocytes. While gene transcription changes objectively reveal molecular alterations of cells undergoing various biological processes, the search for molecular mechanisms underlying aging of NSC/NPCs has been confronted by the enormous heterogeneity in cellular compositions of the brain and the complex cellular microenvironment where NSC/NPCs reside. Moreover, brain NSC/NPCs themselves are not a homogenous population, making it even more difficult to uncover NSC/NPC sub-type specific aging mechanisms. Here, using both population-based and single cell transcriptome analyses of young and aged mouse forebrain ependymal and subependymal regions and comprehensive “big-data” processing, we report that NSC/NPCs reside in a rather inflammatory environment in aged brain, which likely contributes to the differentiation bias towards astrocytes versus neurons. Moreover, single cell transcriptome analyses revealed that different aged NSC/NPC subpopulations, while all have reduced cell proliferation, use different gene transcription programs to regulate age-dependent decline in cell cycle. Interestingly, changes in cell proliferation capacity are not influenced by inflammatory cytokines, but likely result from cell intrinsic mechanisms. The Erk/Mapk pathway appears to be critically involved in regulating age-dependent changes in the capacity for NSC/NPCs to undergo clonal expansion. Together this study is the first example of using population and single cell based transcriptome analyses to unveil the molecular interplay between different NSC/NPCs and their microenvironment in the context of the aging brain. | Zhanpinq Shi Yanan Geng Jiping Liu Huina Zhang Liqiang Zhou Quan Lin Juehua Yu Kunshan Zhang Jie Liu Xinpei Gao Chunxue Zhang Yinan Yao Chong Zhang Yi E. Sun | 2018 | Protein & Cell2018，9，4： | 3 |
| 7 | Coupled electrophysiological recording and single cell transcriptome analyses revealed molecular mechanisms underlying neuronal maturation显示文摘哺乳动物的大脑是异构的,包含形成各种各样的神经电路,感觉,运动,思维,和情感通过产生的触处的十亿个神经原和万亿。大脑的细胞的异质使学习神经电路配线的分子的逻辑困难,修剪,直到最近, transcriptome 与分辨率使基因译码规章的单个房间分析的激活,和粘性联网可能的内在的上述的电路性质。这里,我们在在文化在单个人的神经原上执行 electrophysiological 和整个染色体的 transcriptome 分析报导成功。用加权的基因 Coexpression 网络分析(WGCNA ) ,我们鉴别基因簇高度相关, neuronal 成熟由 electrophysiological 特征判定了。在涉及 ubiquitination 和 mitochondrial 功能的 neuronal 成熟和基因之间的一个紧密的连接被揭示。而且,我们识别了候选人基因的一张表,它能潜在地为 neuronal 成熟用作 biomarkers。联合 electrophysiological 记录和单个房间 transcriptome 分析将在未来用作强大的工具为神经电路功能揭开分子的逻辑。 | Xiaoying Chen Kunshan Zhang Liqiang Zhou Xinpei Gao Junbang Wang Yinan Yao Fei He Yuping Luo Yongchun Yu Siguang Li Liming Cheng Yi E. Sun | 2016 | Protein & Cell2016，7，3： | 2 |
| 8 | Uncertain information fusion with robust adaptive neural networks-fuzzy reasoning显示文摘In practical multi-sensor information fusion systems, there exists uncertainty about the network structure, active state of sensors, and information itself (including fuzziness, randomness, incompleteness as well as roughness, etc). Hence it requires investigating the problem of uncertain information fusion. Robust learning algorithm which adapts to complex environment and the fuzzy inference algorithm which disposes fuzzy information are explored to solve the problem. Based on the fusion technology of neural networks and fuzzy inference algorithm, a multi-sensor uncertain information fusion system is modeled. Also RANFIS learning algorithm and fusing weight synthesized inference algorithm are developed from the ANFIS algorithm according to the concept of robust neural networks. This fusion system mainly consists of RANFIS confidence estimator, fusing weight synthesized inference knowledge base and weighted fusion section. The simulation result demonstrates that the proposed fusion model and algorithm have the capability of uncertain information fusion, thus is obviously advantageous compared with the conventional Kalman weighted fusion algorithm. | Zhang Yinan Sun Qingwei Quan He Jin Yonggao Quan Taifan | 2006 | Journal of Systems Engineering and Electronics2006，17，3： | 2 |
| 9 | Knowledge-aware path: interpretable graph reasoning in proactive dialogue generation显示文摘Proactive dialogue generates dialogue utterance based on a conversation goal and a given knowledge graph(KG). Existing methods combine knowledge of each turn of dialogue with knowledge triples by hidden variables, resulting in the interpretability of generation results is relatively poor. An interpretable knowledge-aware path(KAP) model was proposed for knowledge reasoning in proactive dialogue generation.KAP model can transform explicit and implicit knowledge of each turn of dialogue into corresponding dialogue state matrix, thus forming the KAP for dialogue history. Based on KAP, the next turn of dialogue state vector can be infered from both the topology and semantic of KG. This vector can indicate knowledge distribution of next sentence, so it enhances the accuracy and interpretability of dialogue generation. Experiments show that KAP model’s dialogue generation is closer to actual conversation than other state-of-the-art proactive dialogue models. | Sun Yinan Xu Yajing Li Si Guo Jun | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，1： | 2 |
| 10 | A shedding soluble form of interleukin-17 receptor D exacerbates collagen-induced arthritis through facilitating TNF-α-dependent receptor clustering显示文摘Rheumatoid arthritis(RA)is exacerbated by TNF-alpha signaling.However,it remains unclear whether TNF-α-activated TNFR1 and TNFR2 are regulated by extracellular factors.Here,we showed that soluble glycosylated interleukin-17 receptor D(sIL-17RD),which was produced by proteolytic cleavage,enhanced TNF-α-induced RA.We revealed that IL-17RD shedding was induced by the proteolytic enzyme TACE and enhanced by TNF-αexpression in macrophages.Intriguingly,sIL-17RD was elevated in the sera of arthritic mice and rats.Recombinant sIL-17RD significantly enhanced the TNF-α-induced proinflammatory response by promoting TNF-α-TNFR-sIL-17RD complex formation and receptor clustering,leading to the accelerated development of collagen-induced arthritis.Our observations revealed that ectodomain shedding of IL-17RD occurred in RA to boost the TNF-α-induced inflammatory response.Targeting sIL-17RD may provide a new strategy for the therapy of RA. | Sihan Liu Yanxia Fu Kunrong Mei Yinan Jiang Xiaojun Sun Yinyin Wang Fangli Ren Congshan Jiang Liesu Meng Shemin Lu Zhihai Qin Chen Dong Xinquan Wang Zhijie Chang Shigao Yang | 2021 | Cellular & Molecular Immunology2021，18，8： | 1 |
| 11 | Duplex micro RNAs assay based on target-triggered universal reporter hybridization显示文摘In this paper, we designed and evaluated a duplex detection strategy for micro RNAs(mi RNAs) using universal probe-based target-triggered double hybridization and fluorescent microsphere-based assay system(x MAP array). In the absence of target mi RNA, reporter DNA cannot hybridize stably with the immobilized capture DNA due to its low melting temperature. Only after adding target mi RNA, can reporter probe hybridize with capture probe to form a stable three-component complex. This targettriggered stable hybridization makes this method possible for highly selective and sensitive detection of multiple mi RNAs. We exemplified a quantitative detection of duplex mi RNAs with a limit of detection of40 p M. The x MAP array platform holds the potential of extending this approach to simultaneous detection of up to 100 mi RNA targets. Considering the simplicity, rapidity and multiplexing, this work promised a potential detection of multiple mi RNA biomarkers for early disease diagnosis and prognosis. | Yinan Wang Yue Sun Choiwan Lau Jianzhong Lu | 2018 | Journal of Pharmaceutical Analysis2018，8，4： | 1 |
| 12 | Inhibition of hydrogen sulfide synthesis provides protection for severe acute pancreatitis rats via apoptosis pathway显示文摘 | Gang Wang Bing Han Haoxin Zhou Linfeng Wu Yongwei Wang Guang Jia Jiachen Lv Zhuoxin Cheng Shangha Pan Ji Liu Yinan Zhou Bei Sun | 2013 | Apoptosis2013，，1： | 1 |
| 13 | Derivation of totipotent-like stem cells with blastocyst-like structure forming potential显示文摘It is challenging to derive totipotent stem cells in vitro that functionally and molecularly resemble cells from totipotent embryos.Here,we report that a chemical cocktail enables the derivation of totipotent-like stem cells,designated as totipotent potential stem(TPS)cells,from 2-cell mouse embryos and extended pluripotent stem cells,and that these TPS cells can be stably maintained long term in vitro.TPS cells shared features with 2-cell mouse embryos in terms of totipotency markers,transcriptome,chromatin accessibility and DNA methylation patterns.In vivo chimera formation assays show that these cells have embryonic and extraembryonic developmental potentials at the single-cell level.Moreover,TPS cells can be induced into blastocyst-like structures resembling preimplantation mouse blastocysts.Mechanistically,inhibition of HDAC1/2 and DOT1L activity and activation of RARγsignaling are important for inducing and maintaining totipotent features of TPS cells.Our study opens up a new path toward fully capturing totipotent stem cells in vitro. | Yaxing Xu Jingru Zhao Yixuan Ren Xuyang Wang Yulin Lyu Bingqing Xie Yiming Sun Xiandun Yuan Haiyin Liu Weifeng Yang Yenan Fu Yu Yu Yinan Liu Rong Mu Cheng Li Jun Xu Hongkui Deng | 2022 | Cell Research2022，32，6： | 1 |
| 14 | Isoflavone Content of Soybean Cultivars from Maturity Group 0 to VI Grown in Northern and Southern China显示文摘 | Jingying Zhang Yinan Ge Fenxia Han Bin Li Shurong Yan Junming Sun Lianzheng Wang | 2014 | Journal of the American Oil Chemists’ Society2014，，6： | 1 |
| 15 | Aspirin inhibits MMP-2 and MMP-9expressions and activities through upregulation of PPARa/r and TIMP gene expressions in ox-LDL-stimulated macrophages eerived from human monocytes显示文摘 | Yinan Hua Jie Xue Fan Sun | 2009 | Pharmacology2009，83，1： | 1 |
| 16 | Functional annotation of cis-regulatory elements in human cells by dCas9/sgRNA显示文摘 | Yinan Du Qingzhou Meng Jun Zhang Man Sun Bin Shen Hui Jiang Nannan Kang Jimin Gao Xingxu Huang Jianghuai Liu | 2015 | Cell Research2015，25，7： | 0 |
| 17 | Comparative and population genomics of buckwheat species reveal key determinants of flavor and fertility显示文摘Common buckwheat(Fagopyrum esculentum)is an ancient crop with a world-wide distribution.Due to its excellent nutritional quality and high economic and ecological value,common buckwheat is becoming increasingly important throughout the world.The availability of a high-quality reference genome sequence and population genomic data will accelerate the breeding of common buckwheat,but the high heterozygosity due to the outcrossing nature has greatly hindered the genome assembly.Here we report the assembly of a chromosome-scale high-quality reference genome of F.esculentum var.homotropicum,a homozygous self-pollinating variant of common buckwheat.Comparative genomics revealed that two cultivated buckwheat species,common buckwheat(F.esculentum)and Tartary buckwheat(F.tataricum),underwent metabolomic divergence and ecotype differentiation.The expansion of several gene families in common buckwheat,including FhFAR genes,is associated with its wider distribution than Tartary buckwheat.Copy number variation of genes involved in the metabolism of flavonoids is associated with the difference of rutin content between common and Tartary buckwheat.Furthermore,we present a comprehensive atlas of genomic variation based on whole-genome resequencing of 572 accessions of common buckwheat.Population and evolutionary genomics reveal genetic variation associated with environmental adaptability and floral development between Chinese and non-Chinese cultivated groups.Genome-wide association analyses of multi-year agronomic traits with the content of flavonoids revealed that Fh05G014970 is a potential major regulator of flowering period,a key agronomic trait controlling the yield of outcrossing crops,and that Fh06G015130 is a crucial gene underlying flavor-associated flavonoids.Intriguingly,we found that the gene translocation and sequence variation of FhS-ELF3 contribute to the homomorphic self-compatibility of common buckwheat.Collectively,our results elucidate the genetic basis of speciation,ecological adaptation,fertility,and unique flavor of common buckwheat,and provide new resources for future genomics-assisted breeding of this economically important crop. | Kaixuan Zhang Yuqi He Xiang Lu Yaliang Shi Hui Zhao Xiaobo Li Jinlong Li Yang Liu Yinan Ouyang Yu Tang Xue Ren Xuemei Zhang Weifei Yang Zhaoxia Sun Chunhua Zhang Muriel Quinet Zlata Luthar Mateja Germ Ivan Kreft Dagmar Janovska Vladimir Meglic Barbara Pipan Milen I.Georgiev Bruno Studer Mark A.Chapman Meiliang Zhou | 2023 | Molecular Plant2023，16，9： | 0 |
| 18 | Impacts of tropical cyclones and anthropogenic activities on marine vanadium: A unique perspective from high resolution Porites coral record显示文摘As a typical contaminant in fossil fuels,vanadium has undergone dramatically increase due to the impacts from human activities.The excessive anthropogenic vanadium emissions have altered natural geochemical processes.However,research on vanadium geochemistry in the ocean,which is the major sink for vanadium mobilized on land,has lagged much behind relative to those of other contaminants.Here we reconstruct historical patterns of vanadium in surface seawater utilizing a high-resolution temporal record(1984–2015 CE)of geochemical proxies(vanadium/calcium(V/Ca),δ^(18)O,δ^(13)C,etc.)in a Porites coral colony from an offshore non-estuarine island in the northern South China Sea(SCS).We find a close association between the surface winds and the temporal patterns of coral V/Ca ratios,revealing great potential for documenting prehistoric changes in tropical cyclones.Moreover,the coral V/Ca record remarkably captured the temporal patterns of anthropogenic activities,offering a valuable and novel tool for testing the efficacy of specific legislation on pollution prevention.Combined with the other reported coral vanadium data,we recovered the historical changes in vanadium emissions in the northern SCS and identified that changing industrial practices should be responsible for the differences in anthropogenic vanadium emissions at each stage.Our results demonstrated that the coral V/Ca ratio at a high temporal resolution has great potential as a new and direct geochemical proxy for tropical cyclones after removing artificial disturbances in the ocean. | Wei JIANG Xingyuan WU Kefu YU Haodan YANG Shendong XU Ning WANG Yangyang YONG Yinan SUN Chaoshuai WEI Yinghui WANG | 2022 | Science China Earth Sciences2022，65，12： | 0 |
| 19 | Oxygen doping modulating thermal-activated charge transport of reduced graphene oxide for high performance temperature sensors显示文摘Graphene and its derivatives have sparked intense research interest in wearable temperature sensing due to their excellent electric properties,mechanical flexibility,and good biocompatibility.Despite these ad-vantages,the weak temperature dependence of charge transport makes them difficult to achieve a highly sensitive temperature response,which is one of the remaining bottlenecks in the progress towards practi-cal applications.Unfortunately,detailed knowledge about the key factors of the charge transport temper-ature dependence in this material that determines the critical performance of electrical sensors is very limited up to now.Here,we reveal that oxygen absorption on the ultrathin reduced graphene oxide(RGO)films(~3 nm)can significantly increase their conductance activation energy over 200%and thus greatly improve the temperature dependence of thermal-activated charge transport.Further investigations sug-gest that oxygen introduces the deep acceptor states,distributed at an energy level~0.175ev from the valence-band maximum,which allows a highly temperature-dependent impurity ionization process and the resulting vast holes release in a wide temperature range.Remarkably,our temperature sensors based on oxygen-doped ultrathin RGO films show a high sensitivity with temperature conductive coefficient of 14.58%K^(-1),which is one order of magnitude higher than the reported CNT or graphene-based devices.Moreover,the ultrathin thickness and high thermal conductivity of RGo film allow an ultrafast response time of~86ms,which represents the best level of temperature sensors based on soft materials.Profit-ing from these advantages,our sensors show good capacity to identify the slight temperature difference of human body,monitor respiratory rate,and detect the environmental temperature.This work not only represents substantial performance advances in temperature sensing,but also provides a new approach to modulate the charge transport temperature dependence,which could be benefited to both device design and fundamental research. | Liqian Yuan Zhongwu Wang Yancheng Meng Shuguang Wang Yajing Sun Yinan Huang Liqiang Li Wenping Hu | 2023 | Chinese Chemical Letters2023，34，12： | 0 |
| 20 | Compression behavior and equation of state of Ni_(77)P_(23) amorphous alloy显示文摘The compression behavior of Ni77P23 amorphous alloy is investigated at room temperature in a diamond-anvil cell instrument using insitu high pressure energy dispersive X-ray diffraction with a syn- chrotron radiation source. The equation of state is determined by fitting the experimental data accord- ing to Birch-Murnaghan equation: -ΔV/V0=0.08606P-3.2×10-4P2+5.7×10-6P3. It is found that the structure of Ni77P23 amorphous alloy is stable under pressures up to 30.5 GPa. | LI Gong GAO YunPeng SUN YiNan MA MingZhen LIU Jing LIU RiPing | 2007 | Chinese Science Bulletin2007，52，4： | 0 |
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