维普中文期刊产品整合服务
18篇 您的检索式:作者名="Congying Li"
    题名 作者 年代 出处 被引量
1Plate subduction, oxygen fugacity, and mineralization显示文摘Plate subduction is the largest natural factory that processes elements,which controls recycling and mineralization of a variety of elements.There are three major ore deposit belts in the world:the circumPacific,the centralAsian,and the Tethys belts.All the three belts are closely associated with plate subductions,the mechanism remains obscure.We approached this problem from systematic studies on the behaviours of elements during geologic processes.This contribution summaries the recent progress of our research group.Our results suggest that porphyry Cu deposits form through partial melting of subducted young oceanic crust under oxygen fugacities higher than AFMQ^+1.5,which is promoted after the elevation of atmospheric oxygen at ca.550 Ma.Tin deposits are associated with reducing magmatic rocks formed as a consequence of slab rollback.The Neo-Tethys tectonic regime hosts more than 60%of the world's total Sn reserves.This is due to the reducing environment formed during the subduction of organic rich sediments.For the same reason,porphyry Cu deposits formed in the late stages during the closure of the Neo-Tethys Ocean.Tungsten deposits are also controlled by slab rollback,but is not so sensitive to oxygen fugacity.Subduction related W/Sn deposits are mostly accompanied by abundant accessory fluorites due to the breakdown of phengite and apatite.Decomposition of phengite is also significant for hard rock lithium deposits,whereas orogenic belt resulted from plate subduction promote the formation of Li brine deposits.Cretaceous red bed basins near the Nanling region are favorable for Li brines.Both Mo and Re are enriched in the oxidationreduction cycle during surface processes,and may get further enriched once Mo-,Re-enriched sediments are subducted and involved in magmatism.During plate subduction,Mo and Re fractionate from each other.Molybdenum is mainly hosted in porphyry Mo deposits and to a less extent,porphyry Cu-Mo deposits,whereas Re is predominantly hosted in porphyry Cu-Mo deposits and sedimentary sulfide deposits.LIU He LIAO Renqiang ZHANG Lipeng LI Congying SUN Weidong 2020Journal of Oceanology and Limnology2020,38,1:10
2Double perovskite oxides Sr_2Mg_(1-x)Fe_xMoO(6-δ) for catalytic oxidation of methane显示文摘The double perovskite oxides Sr2Mg1-xF exMoO6-δ were investigated as catalysts for the methane oxidation.The structural properties of catalysts were characterized in detail by X-ray diffraction,X-ray photoelectron spectroscopy and X-ray absorption spectroscopy.The catalytic property was strongly influenced by the Fe substitution.The relation between catalytic performance and the degree of Fe substitution was examined with regard to the structure and surface characteristics of the mixed oxides.The Fe-containing catalysts exhibited higher activity attributable to the possible(Fe2+,Mo6+) and (Fe3+,Mo5+)valency pairs,and the highest activity was observed for Sr2Mg0.2Fe0.8MoO6-δ.The enhancement of the catalytic activity may be correlated with the Fe-relating surface lattice oxygen species and was discussed in view of the presence of oxygen vacancies.Chen Li Wendong W ang Congying Xu Yuanxu Liu BO He Chusheng Chen 2011Journal of Natural Gas Chemistry2011,20,4:6
3Plate convergence in the Indo-Pacific region显示文摘The Indo-Pacific convergence region is the best target to solve the teo remaining challenges of the plate tectonics theory,i.e.,subduction initiation and the driving force of plate tectonics.Recent studies proposed that the Izu-Bonin subduction initiation belongs to spontaneous initiation,which implies that it started from extension,followed by low angle subduction.Numerical geodynamic modeling suggests that the initiation of plate subduction likely occurred along a transform fault,which put the young spreading ridge in direct contact with old oceanic crust.This,however,does not explain the simultaneous subduction initiation in the west Pacific region in the Cenozoic.Namely,the subduction initiations in the Izu-BoninMariana,the Aleutian,and the Tonga-Kermadec trenches are associated with oceanic crusts of different ages,yet they occurred at roughly the same time,suggesting that they were all triggered by a maj or change in the Pacific plate.Moreover,low angle subduction induces compression rather than extension,which requires external compression forces.Given that the famous Hawaiian-Emperor bending occurred roughly at the same time with the onset of westward subductions in the west Pacific,we propose that these Cenozoic subductions were initiated by the steering of the Pacific plate,which are classified as induced initiation.Induced subduction initiation usually occurs in young ocean basins,forming single-track subduction.The closure s of Neo-Tethys Oceans were likely triggered by plume s in the south,forming northward subductions.Interestingly,the Indian plate kept on moving northward more than 50 Ma after the collision between the Indian and Eurasian continents and the break-off of the subducted oceanic slab attached to it.This strongly suggests that slab pull is not the main driving force of plate tectonics,whereas slab sliding is.SUN Weidong ZHANG Lipeng LIAO Renqiang SUN Saijun LI Congying LIU He 2020Journal of Oceanology and Limnology2020,38,4:4
4Lock threshold deterioration induced by antenna vibration and signal coupling effects in hypersonic vehicle carrier tracking system of Ka band显示文摘The envelope of a hypersonic vehicle is affected by severe fluctuating pressure, which causes the airborne antenna to vibrate slightly. This vibration mixes with the transmitted signals and thus introduces additional multiplicative phase noise. Antenna vibration and signal coupling effects as well as their influence on the lock threshold of the hypersonic vehicle carrier tracking system of the Ka band are investigated in this study. A vibration model is initially established to obtain phase noise in consideration of the inherent relationship between vibration displacement and electromagnetic wavelength. An analytical model of the Phase-Locked Loop(PLL), which is widely used in carrier tracking systems, is established. The coupling effects on carrier tracking performance are investigated and quantitatively analyzed by imposing the multiplicative phase noise on the PLL model. Simulation results show that the phase noise presents a Gaussian distribution and is similar to vibration displacement variation. A large standard deviation in vibration displacement exerts a significant effect on the lock threshold. A critical standard deviation is observed in the PLL of Binary Phase Shift Keying(BPSK) and Quadrature Phase Shift Keying(QPSK) signals. The effect on QPSK signals is more severe than that on BPSK signals. The maximum tolerable standard deviations normalized by the wavelength of the carrier are 0.04 and 0.02 for BPSK and QPSK signals,respectively. With these critical standard deviations, lock thresholds are increased from à12 andà4 d B to 3 and à2 d B, respectively.Congying ZHU Lei SHI Xiaoping LI Yanming LIU Wei AI 2018Chinese Journal of Aeronautics2018,31,4:4
5Ag@Au core/shell triangular nanoplates with dual enzyme-like properties for the colorimetric sensing of glucose显示文摘Due to the serious harm of diabetes to human health,development of sensitive assays for glucose level is of high significance for early prevention and treatment of diabetes.Currently,most conventional enzyme-based glucose sensors suffer from high cost and low stability due to the inherent defects of natural enzymes.Herein,we develop a pure nanozyme-based glucose detection method using Ag@Au core/shell triangular nanoplates(TNPs),which combines glucose oxidase(GOD)-and horseradish peroxidase(HRP)-like activities of the Au shell and inherent plasmonic properties of Ag TNPs.The sensing mechanism is based on the fact that the Au shell possessed GOD-like activity,enabling the oxidation of glucose to produce H2O2,which can further etch the silver core,leading to the decrease of absorbance at 800 nm and the color change from blue to colorless.Compared with the previous nanozymes-based glucose sensors,our method avoids the use of enzymes and organic chromogenic agent.Moreover,the stability of the Ag@Au core/shell TNPs is much better than that of Ag TNPs due to the protection by the coating of the Au shell.This method was successfully applied to the detection of urine samples from patients with diabetes,indicating its practical applicability for real sample analysis.Ao Liu Mengmeng Li Jingxiang Wang Fan Feng Yu Zhang Zhiwei Qiu Yuzhu Chen Benjamin Edem Meteku Congying Wen Zifeng Yan Jingbin Zeng 2020Chinese Chemical Letters2020,31,5:3
6Neuron stem cell NLRP6 sustains hippocampal neurogenesis to resist stress-induced depression显示文摘Neurogenesis decline in hippocampal dentate gyrus(DG)participates in stress-induced depressive-like behaviors,but the underlying mechanism remains poorly understood.Here,we observed low-expression of NOD-like receptor family pyrin domain containing 6(NLRP6)in hippocampus of stress-stimulated mice,being consistent with high corticosterone level.NLRP6 was found to be abundantly expressed in neural stem cells(NSCs)of DG.Both Nlrp6 knockout(Nlrp6^(-/-))and NSCconditional Nlrp6 knockout(Nlrp6CKO)mice were susceptible to stress,being more likely to develop depressive-like behaviors.Interestingly,NLRP6 was required for NSC proliferation in sustaining hippocampal neurogenesis and reinforcing stress resilience during growing up.Nlrp6 deficiency promoted esophageal cancer-related gene 4(ECRG4)expression and caused mitochondrial dysfunction.Corticosterone as a stress factor significantly down-regulated NLRP6 expression,damaged mitochondrial function and suppressed cell proliferation in NSCs,which were blocked by Nlrp6 overexpression.ECRG4 knockdown reversed corticosterone-induced NSC mitochondrial function and cell proliferation disorders.Pioglitazone,a well-known clinical drug,up-regulated NLRP6 expression to inhibit ECRG4 expression in its protection against corticosterone-induced NSC mitochondrial dysfunction and proliferation restriction.In conclusion,this study demonstrates that NLRP6 is essential to maintain mitochondrial homeostasis and proliferation in NSCs,and identifies NLRP6 as a promising therapeutic target for hippocampal neurogenesis decline linked to depression.Chuanfeng Tang Qiaona Wang Jingyan Shen Congying Wang Hong Ding Shiyu Wen Fan Yang Ruiqing Jiao Xingxin Wu Jianmei Li Lingdong Kong 2023Acta Pharmaceutica Sinica B2023,13,5:3
7Antioxidative and immunological effects of Cyclocarya paliurus polysaccharides on the spleen injury of diabetic rats显示文摘OBJEVTIVE:To investigate the effects of Cyclocarya paliurus(C.paliurus)polysaccharides on the spleen injury of diabetic rats.METHODS:Animals were divided into 6 groups,including normal group,model group,control group,low-dose group of C.paliurus polysaccharides treatment,middle-dose group of C.paliurus polysaccharides treatment and high-dose group of C.paliurus polysaccharides treatment.Histological analysis of spleen was analyzed using hematoxilin and eosin.Levels of biological parameters and anti-oxidative enzymes were determined by spectrophotometry.Interleukin-7(IL-7)and IL-10 were measured by enzyme-linked immunosorbent assay.RESULTS:Compared with that of model group,superoxide dismutase,catalase,glutathione peroxidase,glutathione reductase level increased 78.63%(P<0.05),51.76%(P<0.05),2.95 times(P<0.01)and 41.11%(P<0.05)in the high-dose group of C.paliurus polysaccharides treatment,respectively.IL-7 and IL-10 increase 1.66(P<0.01)and 1.21 times(P<0.01)in the high-dose group of C.paliurus polysaccharides treatment,respectively.CONCLUSION:It is suggested that C.paliurus polysaccharides may play a protecting role for spleen injury of diabetic rats by enhancing the antioxidative ability and evaluating the immunity.XIA Xichao LI Bin QIU Ju TIAN Gang CHEN Changdong LA Ming ZHANG Ke QI Jinxu LI Yanyan GAO Huashan SHAO Xiangyang SU Congying WANG Mengqi OUYANG Jingfeng 2021Journal of Traditional Chinese Medicine2021,41,5:2
8Graphdiyne:A Versatile Material in Electrochemical Energy Conversion and Storage显示文摘Graphdiyne(GDY),which is composed of sp^(2)-/sp-hybridized carbon atoms,has attracted increasing attention.In the structure of GDY,the existence of large triangular-like pores,well dispersed electron-rich cavities as well as a largeπ-conjugated structure endows GDY with a natural bandgap,fast electron/ion transport,and tunable electronic properties.These unique features make GDY competitive in areas of gas separation and capture,electronics,detectors,catalysts,biomedicine and therapy,and energy-related fields.Benefiting from the facile synthesis method,various GDY structures and GDY-based composites have been successfully prepared and show great potential in the practical application of energy storage and catalysis areas.Here,this review aims at providing a timely and comprehensive update on the preparation and application of GDY materials.The current development of GDY materials in various electrochemical fields especially in energy conversion,energy storage,and catalysis is mainly summarized.Moreover,the potential development prospects are also discussed.SONG Congying LI Guoxing 2021Chemical Research in Chinese Universities2021,37,6:1
9The formation of the Dabaoshan porphyry molybdenum deposit induced by slab rollback显示文摘LI Congying ZHANG Hong WANG Fangyue 2012Lithos2012,150,:1
10Crystal structure of human Gadd45 reveals an active dimer显示文摘The human Gadd45 protein family plays critical roles in DNA repair,negative growth control,genomic stability,cell cycle checkpoints and apoptosis.Here we report the crystal structure of human Gadd45,revealing a unique dimer formed via a bundle of four parallel helices,involving the most conserved residues among the Gadd45 isoforms.Mutational analysis of human Gadd45 identified a conserved,highly acidic patch in the central region of the dimer for interaction with the proliferating cell nuclear antigen(PCNA),p21 and cdc2,suggesting that the parallel dimer is the active form for the interaction.Cellular assays indicate that:(1)dimerization of Gadd45 is necessary for apoptosis as well as growth inhibition,and that cell growth inhibition is caused by both cell cycle arrest and apoptosis;(2)a conserved and highly acidic patch on the dimer surface,including the important residues Glu87 and Asp89,is a putative interface for binding proteins related to the cell cycle,DNA repair and apoptosis.These results reveal the mechanism of self-association by Gadd45 proteins and the importance of this self-association for their biological function.Wenzheng Zhang Sheng Fu Xuefeng Liu Xuelian Zhao Wenchi Zhang Wei Peng Congying Wu Yuanyuan Li Xuemei Li Mark Bartlam Zong-Hao Zeng Qimin Zhan Zihe Rao 2011Protein & Cell2011,2,10:1
11A new catalyst for urea oxidation: NiCo2S4 nanowires modified 3D carbon sponge显示文摘Urea oxidation is a significant reaction for utilizing urea-rich wastewater or human urine as sustainable power sources which can ease the water eutrophication while generate electricity. A direct urea-hydrogen peroxide fuel cell is a new kind of fuel cell employing urea as fuel and hydrogen peroxide as oxidant which possesses a larger cell voltage. Herein, this work tries to promote the kinetics process of urea oxidation by preparing low-cost and high-efficient NiCo2S4 nanowires modified carbon sponge electrode. The carbon sponge used in this work with a similar three-dimensional multi-channel structure to Ni foam, is prepared by carbonizing recycled polyurethane sponge which is also a process of recycling waste. The performance of the prepared catalyst in an alkaline solution is investigated in a three-electrode system.With the introduction of Co element to the catalyst, a reduced initial urea oxidation potential and a high performance are obtained. Furthermore, a direct urea-hydrogen peroxide fuel cell is assembled using the NiCo2S4 nanowires modified carbon sponge anode. Results indicate that the prepared catalyst provides a chance to solve the current problems that hinder the development of urea electrooxidation(high initial urea oxidation potential, low performance, and high electrode costs).Biaopeng Li Congying Song Jianjun Rong Jing Zhao Hong-En Wang Ping Yang Ke Ye Kui Cheng Kai Zhu Jun Yan Dianxue Cao Guiling Wang 2020Journal of Energy Chemistry2020,29,11:1
12An Anti-Recompression Video Watermarking Algorithm in Bitstream Domain显示文摘Following the popularity of digital video application,video copying and dissemination have become very easy;however,this makes video hacking and piracy a potential threat in video communication.Video watermarking technology can solve the problem of copyright protection,and thus,it has been extensively researched.The robustness of the video watermarking algorithm in the bitstream domain is poor,especially the anti-recompression ability,since the watermarked video may be compressed again before transmitting.Considering this,this paper proposes a video watermarking algorithm in the bitstream domain based on moving object detection.To increase the robustness of the watermarking scheme,the moving macroblocks that belong to the moving object in each P frame can be identified via the moving object detection algorithm.Then,watermark embedding in the moving macroblocks is performed using codeword substitution to ensure the consistency of the bitstream.Moving object detection and watermark embedding are independent and are both carried out in the bitstream domain by partially decoding the bitstream;this avoids the complete decoding and reconstruction of the video,making the method to be highly efficient.The simulation results confirm that the proposed method is robust against recompression and has little impact on the video visual quality and no influence on the bit rate.Jing Sun Xiaoping Jiang Jin Liu Fan Zhang Congying Li 2021Tsinghua Science and Technology2021,26,2:1
13Crystal structure of human Gadd45γreveals an active dimer显示文摘Erratum to:Protein Cell 2011,2(10):814-826 DOI 10.1007/s13238-011-1090-6 Due to typesetting errors,“gadd45”should be“Gadd45γ”in the following places:the article title,the 2^(nd),4^(th) and 5^(th) Gadd45 in the ABSTRACT,the KEYWORDS,the first subti-tle of“RESULTS AND DISCUSSION”section,the legend of Figure 1,the“data collection and processing”of MATERIALS AND METHODS section.Wenzheng Zhang Sheng Fu Xuefeng Liu Xuelian Zhao Wenchi Zhang Wei Peng Congying Wu Yuanyuan Li Xuemei Li Mark Bartlam Zong-Hao Zeng Qimin Zhan Zihe Rao 2012Protein & Cell2012,3,3:0
14Uncovering the potential pathological mechanism of acute pancreatitis in patients with COVID-19 by bioinformatics methods显示文摘Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has posed a serious challenge to emergency departments that usually encounter emergencies and severe diseases.[1-5]Angiotensin-converting enzyme 2(ACE2),a protein that interacts with the viral spike protein(s),allows SARS-CoV-2 to penetrate epithelial cells.[6]There is mounting evidence that suggests that the digestive system may also be affected.[7]An observational study described potential patterns of pancreatic injury(elevated amylase and lipase)in patients with coronavirus disease 2019(COVID-19).[8]Additionally,sporadic case reports have described secondary pancreatitis in patients with SARS-CoV-2 infection and presented imaging evidence.[9]Moreover,a previous study showed that COVID-19 patients not only have a higher risk of developing acute pancreatitis(AP),but also have a significantly higher mortality than those without COVID-19.[10]Using bioinformatics analysis,it may be possible to reveal how COVID-19 and AP are related.In this study,two RNA-seq datasets of SARS-CoV-2 and AP were selected for analysis.Zhaodi Wang Ping Wang Xuan Lu Congying Song Shuai Jiang Li Li Yuanqiang Lu 2023World Journal of Emergency Medicine2023,14,5:0
15Geochemical and Zircon Hf-O Isotopic Constraints on the Origin of Wulian A-Type Granite in Shandong Peninsula,Eastern China显示文摘Early Cretaceous A-type granitic plutons are widely distributed in Shandong Peninsula,which are of great significance to understanding the regional tectonic evolution.Here we report geochemical characteristics,geochronological results,and zircon Hf-O isotope compositions of Wulian granites to reveal its origin and geological significance.Wulian granites share most characteristics of the A_(2)-type granite.Zircon U-Pb LA-ICPMS analysis for Wulian A-type granites yields average age of 116.6±2.1 Ma.Zircon O isotope values range from 4.20‰to 5.57‰,and these values are marginally identical to or slightly lower than those of mantle zircon(5.3‰±0.3‰).Zirconε_(Hf)(t)values(-26.1--23.5)indicate an enriched source.Integrated zircon Hf-O isotope compositions indicate that the source region of Wulian granites involves the components of ancient oceanic crust.Apatites from Wulian granites have the lower chlorine(0.06 wt.%-0.15 wt.%)and higher fluorine contents(2.11 wt.%-2.48 wt.%)compared with Haiyang pluton,together with their high(La/Gd)_(N),(La/Yd)_(N) and low(Gd/Yb)_(N) ratios and high oxygen state magma reflected from zircon,signifying that slab derived component was added into the overlying mantle region through fluid/melt.The geochemical characteristics of Wulian granites could be explained by the ridge(between the Izanagi and Pacific plates)subduction model,which began to influence the tectonic evolution of the Xuhuai region and Shandong Peninsula since~130±5 Ma.The following slab window between two plates plausibly explains regional extension,resulting in hot magma upwelling and the formation of the A-type granite belt.Integrating the Lower Yangtze River belt and Shandong Peninsula A-type granite proves the northward movement of the ridge between the Pacific Plate and Izanagi Plate.Shuai Yuan He Li Lipeng Zhang Congying Li Haiyang Liu Ying-Yu Xue Weidong Sun 2022Journal of Earth Science2022,33,3:0
16Highly sensitive colorimetric detection of NH3 based on Au@Ag@AgCl core-shell nanoparticles显示文摘Abstract:As an important component of the atmosphere,ammonia(NH_(3))plays a very important role in maintaining the balance of environment.However,it is also one of the most toxic gases that can cause damage to the human respiratory system and mucous membranes even at low concentrations.As such,development of highly sensitive and selective NH_(3)sensors is of high significance for environmental monitoring and health maintenance.Herein,we have synthesized Au@Ag@Ag Cl core-shell nanoparticles(NPs)by oxidative etching and precipitating Au@Ag core-shell NPs using FeCl3 and further used them as optical probes for the colorimetric detection of NH_(3).The sensing mechanism is based on the fact that the etching of NH_(3)on AgCl and Ag shell leads to the variations of ingredients and core-to-shell ratio of the Au@Ag@AgCl NPs,thereby inducing noticeable spectral and color changes.By replacing the outmost layer of Ag with AgCl,not only is the stability of the sensor against oxygen significantly enhanced,but also is the sensitivity of the method improved.The method exhibits good linear relationship for the detection of NH_(3)from 0 to 5000 mmol/L with the limit of detection of 6.4 mmol/L.This method was successfully applied to the detection of simulated air polluted by NH_(3),indicating its practical applicability for environmental monitoring.This method shows great potential for on-site NH_(3)detection particularly in remote area,where a simple,fast,low-cost,and easy-to-handle method is highly desirable.Zhiwei Qiu Yitong Xue Jiyong Li Yunzhi Zhang Xinyi Liang Congying Wen Houjian Gong Jingbin Zeng 2021Chinese Chemical Letters2021,32,9:0
17An emerging plume head interacting with the Hawaiian plume tail显示文摘The Hawaiian-Emperor seamount chain has shown two subparallel geographical and geochemical volcanic trends,Loa and Kea,since-5 Ma,for which numerous models have been proposed that usually involve a single mantle plume sampling different compositional sources of the deep or shallow mantle.However,both the dramatically increased eruption rate of the Hawaiian hotspot since-5 Ma and the nearly simultaneous southward bending of the Hawaiian chain remain unexplained.Lipeng Zhang Zebin Cao Robert E.Zartman Congying Li Saijun Sun Lijun Liu Weidong Sun 2023The Innovation2023,4,2:0
18Gut microbiota axis:potential target of phytochemicals from plant-based foods显示文摘Food-microbiota-host interactions provide an overarching framework for understanding the function of the gut microbiota axis.Diet is a major modulator of gut microbiota.Plant-based foods are rich in phytochemicals;therefore,it is essential to assess such foods and elucidate the mechanisms underlying their action.In this review,we summarize the role of gut microbiota in the communication between the gut and the brain,liver,lung,kidney,and joints,as well as the role of the gut microbiota axis in diseases involving these organs.In addition,we assess the effects of phytochemicals from plant-based foods on the gut microbiota axis via different pathways.Ruyu Shi Congying Huang Yuan Gao Xing Li Chunhong Zhang Minhui Li 2023Food Science and Human Wellness2023,12,5:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费