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43篇 您的检索式:作者名="Junfeng Hui"
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1High-pressure granulite from Western Kunlun,northwestern China:Its metamorphic evolution,zircon SHRIMP U-Pb ages and tectonic implication显示文摘High-pressure mafic granulites occurring as lenticular bodies within garnet-amphibolites in Kangxiwar Fault have been first reported in this paper. The P-T conditions of two metamorphic stages were ob-tained using calibrated geothermal barometers and ThermoCalc Program. The peak metamorphic con-dition of these high-pressure granulites is about 760―820℃,1.0―1.2 GPa and the retrograde meta-morphic condition is about 620―720℃,0.7―0.8 GPa. The petrological studies show that they have a near-isobaric cooling P-T path which suggests that the Western Kunlun underwent initial crustal thickening,subsequent exhumation and cooling. The SHRIMP zircon U-Pb dating gives two groups of ages for high-pressure granulites. One is 177±6 Ma which is obtained from the rim of the zircon. We consider this age should be the metamorphic age. And the other is 456±30 Ma which is obtained from the core of the zircon and should be the protolith age. The formation of these high-pressure granulites in western Kunlun is closely correlated with the evolution of the Paleo-Tethys and has important im-plications for the research on Tethys and Paleo-Asian tectonic zone.QU JunFeng ZHANG LiFei AI YongLiang L Zeng WANG JianPing ZHOU Hui WANG ShiYan 2007Science China Earth Sciences2007,50,7:7
2Synthesis, DNA-binding and photocleavage studies of ruthenium(Ⅱ) complexes [Ru(btz)_3]^(2+) and [Ru(btz)(dppz)_2]^(2+)显示文摘Two new ruthenium(Ⅱ) complexes, [Ru(btz)3](ClO4)2 (1) and [Ru(btz)(dppz)2](ClO4)2 (2) (btz = 4,4′-bithi-azole, dppz = dipyrido[3,2-a:2′,3′-c]phenazine), have been synthesized and characterized by elemental analysis, 1H NMR, ES-MS and X-ray crystallography. The DNA binding behaviors of two complexes have been studied by spectroscopic and viscosity measurements. The results suggest that complex 1 binds to CT-DNA via an electrostatic mode, while complex 2 via an intercalative mode. Under irradiation at 365 nm, both complexes were found to promote the cleavage of plasmid pBR 322 DNA from supercoiled form Ⅰ to nicked form Ⅱ. The mechanism studies reveal that singlet oxygen 1O2 and hydroxyl radical (OH-) play a significant role in the photocleavage process.YU HuiJuan, HUANG ShuMei, KOU JunFeng, LI LvYing, JIA HaiNa, CHAO Hui & JI LiangNian MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China 2009Science China Chemistry2009,52,9:4
3Direct interaction between CD155 and CD96 promotes immunosuppression in lung adenocarcinoma显示文摘Despite the advance in targeted therapy,lung adenocarcinoma(LUAD)remains one of the leading causes of death in patients with cancer.CD155,a member of poliovirus receptor–related(PRR)family,has been identified as the ligand of the Ig-like receptors tactile(CD96)and DNAM-1(CD226)on T cells.The interaction of CD155 with CD96 transmits an inhibitory signal and suppresses immune response.The interaction of CD155 with CD226 enhances the immune response.1,2,3 CD155 expression has been shown to be elevated in many types of cancers4,5 and is involved with immune suppression in melanoma.6 However,how CD155/CD96 is involved in immune response in the tumor microenvironment of LUAD remains unknown.Hui Zhang Qianwen Liu Yiyan Lei Jianwen Zhou Wenting Jiang Yongmei Cui Qiong He Junfeng Zhu Zheng Zhu Yu Sun Zunfu Ke 2021Cellular & Molecular Immunology2021,18,6:3
4Deformation at the Easternmost Altyn Tagh Fault: Constraints on the Growth of the Northern Qinghai–Tibetan Plateau显示文摘How the Altyn Tagh fault(ATF) extends eastwards is one of the key questions in the study of the growth of the Qinghai–Tibetan Plateau. Detailed fieldwork at the easternmost part of the ATF shows that the ATF extends eastward and bypasses the Kuantan Mountain;it does not stop at the Kuantan Mountain, but connects with the northern Heishan fault in the east. The ATF does not enter the Alxa Block but extends eastward along the southern Alxa Block to the Jintanan Mountain. The Heishan fault is not a thrust fault but a sinistral strike-slip fault with a component of thrusting and is a part of the ATF. Further to the east, the Heishan fault may connect with the Jintananshan fault. A typical strike-slip duplex develops in the easternmost part of the ATF. The cut and deformed Quaternary sediments and displaced present gullies along the easternmost ATF indicate that it is an active fault. The local highest Mountain(i.e., the Kuantan Mountain) in the region forms in a restraining bend of the ATF due to the thrusting and uplifting. The northward growth of the Qinghai–Tibetan Plateau and the active deformation in South Mongolia are realized by sinistral strike-slipping on a series of NE–SW-trending faults and thrusting in restraining bends along the strike-slip faults with the northeastward motion of blocks between these faults.ZHANG Jin YUN Long ZHANG Beihang QU Junfeng ZHAO Heng HUI Jie WANG Yannan ZHANG Yiping 2020Acta Geologica Sinica(English Edition)2020,94,4:3
5A temperature responsive adhesive hydrogel for fabrication of flexible electronic sensors显示文摘Flexible electronics are playing an increasingly important role in human health monitoring and healthcare diagnosis.Strong adhesion on human tissue would be ideal for reducing interface resistance and motion artifacts,but arising problems such as skin irritation,rubefaction,and pain upon device removal have hampered their utility.Here,inspired by the temperature reversibility of hydrogen bonding,a skin-friendly conductive hydrogel with multiple-hydrogen bonds was designed by using biocompatible poly(vinyl alcohol)(PVA),phytic acid(PA),and gelatin(Gel).The obtained PVA/PA/Gel(PPG)hydrogel with temperature-triggered tunable mechanic could reliably adhere to skin and detect electrophysiological signals under a hot compress while be readily removed under a cool compress.Furthermore,the additional advantages of transparency,breathability,and antimicrobial activity of the PPG hydrogel ensure its long-time wearable value on the skin.It is both environmentally friendly and cost saving for the waste PPG hydrogel during production can be recycled based on their reversible physical bonding.The PPG hydrogel sensor is expected to have good application prospects to record electrophysiological signals in human health monitoring.Wan Liu Ruijie Xie Jingyu Zhu Jiansheng Wu Junfeng Hui Xiaoyan Zheng Fengwei Huo Daidi Fan 2022npj Flexible Electronics2022,6,1:2
6Electrochemical degradation of perfluorooctanoic acid (PFOA) by Ti/SnO 2 –Sb, Ti/SnO 2 –Sb/PbO 2 and Ti/SnO 2 –Sb/MnO 2 anodes显示文摘Hui Lin Junfeng Niu Shiyuan Ding Lilan Zhang 2012Water Research2012,,7:2
7Studies on the Attached Cultivation of Filamentous Oleaginous Microalga Tribonema minus显示文摘Attached cultivation is a promising method for microalgal biomass production. Filamentous oleaginous microalga Tribonema minus(hereafter T. minus) has shown a remarkable potential for biofuel production in terms of its high lipid content. However, the strain has only been cultivated in suspended cultivation systems including open pond and closed photobioreactors. Here, we attempted to study the attached cultivation of T. minus, which might be helpful for its scale-up cultivation and industrial applications. As the results, the optimal conditions for T. minus growth in the attached biofilm are 200 μmol photons m^-2 s^-1 of light intensity and 5% of CO2, and the maximum biomass density of 223 g m^-2 has been achieved under the light intensity. The non-woven fabric as substratum was found as the best substratum in thin layer attached bioreactor, on which the average biomass productivity of T. minus is about(9.73 ± 2.19) g m^-2)d^-1. Furthermore, two attached bioreactor systems, rotary drum and rotation disc, were designed following the light dilution strategy and introduced into T. minus cultivation. The highest footprint areal biomass productivity of these two systems is 33 and 47.1 g m^-2 d^-1, respectively, much higher than that in suspended cultivation system. The results shows that T. minus can be cultured with attached cultivation method to improve its biomass productivity.ZHANG Yan JI Chunli ZHOU Wenjun WANG Hui WANG Junfeng LIU Tianzhong 2020Journal of Ocean University of China2020,19,3:2
8Solution‑Processed Transparent Conducting Electrodes for Flexible Organic Solar Cells with 16.61% Efficiency显示文摘Nonfullerene organic solar cells(OSCs)have achieved breakthrough with pushing the efficiency exceeding 17%.While this shed light on OSC commercialization,high-performance flexible OSCs should be pursued through solution manufacturing.Herein,we report a solution-processed flexible OSC based on a transparent conducting PEDOT:PSS anode doped with trifluoromethanesulfonic acid(CF3SO3H).Through a low-concentration and low-temperature CF3SO3H doping,the conducting polymer anodes exhibited a main sheet resistance of 35Ωsq−1(minimum value:32Ωsq−1),a raised work function(≈5.0 eV),a superior wettability,and a high electrical stability.The high work function minimized the energy level mismatch among the anodes,hole-transporting layers and electron-donors of the active layers,thereby leading to an enhanced carrier extraction.The solution-processed flexible OSCs yielded a record-high efficiency of 16.41%(maximum value:16.61%).Besides,the flexible OSCs afforded the 1000 cyclic bending tests at the radius of 1.5 mm and the long-time thermal treatments at 85°C,demonstrating a high flexibility and a good thermal stability.Juanyong Wan Yonggao Xia Junfeng Fang Zhiguo Zhang Bingang Xu Jinzhao Wang Ling Ai Weijie Song Kwun Nam Hui Xi Fan Yongfang Li 2021Nano-Micro Letters2021,13,3:2
9Origin of High Efficiency and Long-Term Stability in Ionic Liquid Perovskite Photovoltaic显示文摘Environment-friendly protic amine carboxylic acid ionic liquids(ILs)as solvents is a significant breakthrough with respect to traditional highly coordinating and toxic solvents in achieving efficient and stable perovskite solar cells(PSCs)with a simple one-step air processing and without an antisolvent treatment approach.However,it remains mysterious for the improved efficiency and stability of PSCs without any passivation strategy.Here,we unambiguously demonstrate that the three functions of solvents,additive,and passivation are present for protic amine carboxylic acid ILs.We found that the ILs have the capability to dissolve a series of perovskite precursors,induce oriented crystallization,and chemically passivate the grain boundaries.This is attributed to the unique molecular structure of ILs with carbonyl and amine groups,allowing for strong interaction with perovskite precursors by forming C=O…Pb chelate bonds and N-H…I hydrogen bonds in both solution and film.This finding is generic in nature with extension to a wide range of IL-based perovskite optoelectronics.Lingfeng Chao Tingting Niu Hao Gu Yingguo Yang Qi Wei Yingdong Xia Wei Hui Shouwei Zuo Zhaohua Zhu Chengjie Pei Xiaodong Li Jing Zhang Junfeng Fang Guichuan Xing Hai Li Xiao Huang Xingyu Gao Chenxin Ran Lin Song Li Fu Yonghua Chen Wei Huang 2020Research2020,,1:2
10Incorporating topographic factors in nonlinear mixed-effects models for aboveground biomass of natural Simao pine in Yunnan,China显示文摘A total of 128 Simao pine trees(Pinus kesiya var. langbianensis) from three regions of Pu'er City,Yunnan Province, People's Republic of China, were destructively sampled to obtain tree aboveground biomass(AGB). Tree variables such as diameter at breast height and total height, and topographical factors such as altitude,aspect of slope, and degree of slope were recorded. We considered the region and site quality classes as the random-effects, and the topographic variables as the fixedeffects. We fitted a total of eight models as follows: leastsquares nonlinear models(BM), least-squares nonlinear models with the topographic factors(BMT), nonlinear mixed-effects models with region as single random-effects(NLME-RE), nonlinear mixed-effects models with site as single random-effects(NLME-SE), nonlinear mixed-effects models with the two-level nested region and site random-effects(TLNLME), NLME-RE with the fixed-effects of topographic factors(NLMET-RE), NLME-SE with the fixed-effects of topographic factors(NLMET-SE), and TLNLME with the fixed-effects of topographic factors(TLNLMET). The eight models were compared by modelfitting and prediction statistics. The results showed: model fitting was improved by considering random-effects of region or site, or both. The models with the fixed-effects of topographic factors had better model fitting. According to AIC and BIC, the model fitting was ranked as TLNLME[ NLMET-RE [ NLME-RE [ NLMET-SE [ TLNLMET[ NLME-SE [ BMT [ BM. The differences among these models for model prediction were small. The model prediction was ranked as TLNLME [ NLME-RE [ NLMES E [ N L M E T- R E [ N L M E T- S E [ T L N L M E T [BMT [ BM. However, all eight models had relatively high prediction precision([90 %). Thus, the best model should be chosen based on the available data when using the model to predict individual tree AGB.Guanglong Ou Junfeng Wang Hui Xu Keyi Chen Haimei Zheng Bo Zhang Xuelian Sun Tingting Xu Yifa Xiao 2016Journal of Forestry Research2016,27,1:2
11Phylogeny of Raninae (Anura: Ranidae ) inferred from mitochondrial and nuclear sequences 显示文摘Jing Che Junfeng Pang Hui Zhao 2007Molecular Phylogenetics and Evolution2007,43,:1
12Biomolecular 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 2015Acta Geologica Sinica(English Edition)2015,89,4:1
13Evolution in physiochemical and cloud condensation nuclei activation properties of crop residue burning particles during photochemical aging显示文摘As a main form of biomass burning in agricultural countries, crop residue burning is a significant source of atmospheric fine particles. In this study, the aging of particles emitted from the burning of four major crop residues in China was investigated in a smog chamber.The particle size distribution, chemical composition and cloud condensation nuclei(CCN)activity were simultaneously measured. The properties of crop residue burning particles varied substantially among different fuel types. During aging, the particle size and mass concentration increased substantially, suggesting condensational growth by formation of secondary aerosols. The particle composition was dominated by organics. Aging resulted in considerable enhancement of organics and inorganics, with enhancement ratios of 1.24–1.44 and 1.33–1.76 respectively, as well as a continuous increase in the oxidation level of organics. Elevated CCN activity was observed during aging, with the hygroscopicity parameter κ varying from 0.16 to 0.34 for fresh particles and 0.19 to 0.40 for aged particles.Based on the volume mixing rule, the hygroscopicity parameter of organic components(κorg) was derived. κorgexhibited an increasing tendency with aging, which was generally consistent with the tendency of the O:C ratio, indicating that the oxidation level was related to the hygroscopicity and CCN activity of organic aerosols from crop residue burning. Our results indicated that photochemical aging could significantly impact the CCN activation of crop burning aerosols, not only by the production of secondary aerosols, but also by enhancing the hygroscopicity of organic components, thereby contributing to the aerosol indirect climate forcing.Yan Ma Chao Chen Junfeng Wang Youling Jiang Zewen Zheng Hui Chen Jun Zheng 2019Journal of Environmental Sciences2019,31,3:1
14Synthesis,crystal structures,electrochemical and spectroscopic properties of ruthenium(Ⅱ) complexes containing diamino-1,3,5-triazine derivatives显示文摘Three Ru(Ⅱ) complexes [Ru(bpy)2(1-IQTNH)](ClO4)2 (1), [Ru(bpy)2(2-QTNH)](ClO4)2 (2) and [Ru(bpy)2(3-IQTNH)](ClO4)2 (3) (bpy = 2,2′-bipyridine, 1-IQTNH = 6-(isoquinolin-1-yl)-1,3,5-triazine-2,4-diamine, 2-QTNH = 6-(quinolin-2-yl)-1,3,5-triazine-2,4-diamine, 3-IQTNH = 6-(isoquinolin-3-yl)-1,3,5-triazine-2,4-diamine) have been synthesized and characterized by elemental analysis, 1H NMR spectroscopy, electrospray ionization mass spectrometry and X-ray crystallography. The electrochemical and spectroscopic properties of the complexes differ from those of [Ru(bpy)3]2+ owing to the structural differences between the ligands and their complexes.CHEN Yu, XU WenChao, KOU JunFeng, WEI XuHui, YU BoLe, CHAO Hui & JI LiangNian MOE Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China 2010Science China Chemistry2010,53,10:1
15Ancient water wells reveal a prolonged drought in the lower Yellow River area about 2800 years ago显示文摘Proxy records from the North Atlantic realm reveal that large and rapid cooling known as the Bond events continued into the Holocene [1],repeatedly punctuating what is conventionally thought to have been a relatively stable climate.Given that the Holocene is the most recent interglacial period that has spurred the development of modern societies,scrutinizing climate variabil- ity during this period is important not only for predicting the trend of future climate changes,but also for better understanding the driving forces behind the rise and fall of ancient civilizations.Shiyong Yu Xuexiang Chen Xiuling Liu Zhen Fang Junfeng Guo Senyang Zhan Hui Fang Fahu Chen 2018Science Bulletin2018,63,20:1
16Research on lubrication performance of super heavy constant flow hydrostatic thrust bearing 显示文摘Yu Xiaodong Meng Xiuli Jiang Hui Lou Xiaozhong Xiang Hongjun Wang Junfeng Liu Tonghai Yang Changqing Sun Xianzhu Ji Weidong Chen Dongliang 2011Advanced Science Letters2011,4,8910:1
17Electrodeposition of a dendrite-free 3D Al anode for improving cycling of an aluminum-graphite battery显示文摘Aluminum-metal batteries show great potential as next-generation energy storage due to their abundant resources and intrinsic safety.However,the crucial limitations of metallic Al anodes,such as dendrite and corrosion problems in conventional aluminum-metal batteries,remain challenging and elusive.Here,we report a novel electrodeposition strategy to prepare an optimized 3D Al anode on carbon cloth with an uniform deposition morphology,low local current density,and mitigatory volume change.The symmetrical cells with the 3D Al anode show superior stable cycling(>450 h)and low-voltage hysteresis(~170 mV)at 0.5 mA cm^(−2).High reversibility(~99.7%)is achieved for the Al plating/stripping.The graphite||Al‐4/CC full batteries show a long lifespan of 800 cycles with 54 mAh g^(−1) capacity at a high current density of 1000 mA g^(−1),benefiting from the high capacitive-controlled distribution.This study proposes a novel strategy to design 3D Al anodes for metallic-Al-based batteries by eliminating the problems of planar Al anodes and realizing the potential applications of aluminum-graphite batteries.Junfeng Li Kwan San Hui Shunping Ji Chenyang Zha Chengzong Yuan Shuxing Wu Feng Bin Xi Fan Fuming Chen Zongping Shao Kwun Nam Hui 2022Carbon Energy2022,4,2:1
18Sliding mode control for low-thrust earth-orbiting spacecraftformation transferring显示文摘LIU HUI LI JUNFENG BAOYIN HEXI 2006Aerospace Science and Technology2006,10,7:1
19Electrochemical degradation of perfluorooctanoic acid (PFOA) by Ti/SnO 2 –Sb, Ti/SnO 2 –Sb/PbO 2 and Ti/SnO 2 –Sb/MnO 2 anodes显示文摘Hui Lin Junfeng Niu Shiyuan Ding Lilan Zhang 2012Water Research2012,,7:1
20Sliding mode control for low thrust earth-orbiting spacecraft formation maneuvering 显示文摘LIU Hui LI Junfeng BAOYIN Hexi 2006Aerospace Science and Technology2006,10,7:1
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