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32篇 您的检索式:作者名="Ren BA"
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1SHRIMP zircon U-Pb ages and tectonic implications for Indosinian granitoids of southern Zhuguangshan granitic composite, South China显示文摘The large southern Zhuguangshan granitic batholith composite consists of granites with ages varying from the Caledonian through Indosinian to Yanshanian. Based on K-Ar dating data, the ages of the major parts of this composite were previously regarded as Yanshanian. In this study, the SHRIMP zircon U-Pb dating method has been adopted for six plutons, Ledong, Longhuashan, Dawozi, Zhaidi, Baiyun and Jiangnan, in the southern Zhuguangshan composite, in which the four plutons other than Baiyun and Jiangnan were previously regarded as Yanshanian granites. Magmatic zircons from these six plutons, dated by this study, have yielded ages of 239±5 Ma (MSWD = 2.5), 239±5 Ma (MSWD = 2.5), 239±2 Ma (MSWD = 1.7), 239±4 Ma (MSWD = 3.2), 231±2 Ma (MSWD = 0.81) and 231±3 Ma (MSWD = 1.8), respectively. The results indicate that these plutons were formed by early Indosinian magmatism. Geochemical characteristics suggest that these granites were formed in an extensional tectonic environment. Therefore, the Indosinian period granites in the southern Zhuguangshan composite were formed by partial melting of the Paleo-Mesoproterozoic crustal components during the collapse of thickened lithosphere after the collision between the South China and Indosinian plates.DENG Ping REN JiShun LING HongFei SHEN WeiZhou SUN LiQiang ZHU Ba TAN ZhengZhong 2012Chinese Science Bulletin2012,57,13:19
2Prediction of Primary Climate Variability Modes at the Beijing Climate Center显示文摘Climate variability modes, usually known as primary climate phenomena, are well recognized as the most important predictability sources in subseasonal–interannual climate prediction. This paper begins by reviewing the research and development carried out, and the recent progress made, at the Beijing Climate Center(BCC) in predicting some primary climate variability modes. These include the El Ni?o–Southern Oscillation(ENSO), Madden–Julian Oscillation(MJO), and Arctic Oscillation(AO), on global scales, as well as the sea surface temperature(SST) modes in the Indian Ocean and North Atlantic, western Pacific subtropical high(WPSH), and the East Asian winter and summer monsoons(EAWM and EASM, respectively), on regional scales. Based on its latest climate and statistical models, the BCC has established a climate phenomenon prediction system(CPPS) and completed a hindcast experiment for the period 1991–2014. The performance of the CPPS in predicting such climate variability modes is systematically evaluated. The results show that skillful predictions have been made for ENSO, MJO, the Indian Ocean basin mode, the WPSH, and partly for the EASM, whereas less skillful predictions were made for the Indian Ocean Dipole(IOD) and North Atlantic SST Tripole, and no clear skill at all for the AO, subtropical IOD, and EAWM. Improvements in the prediction of these climate variability modes with low skill need to be achieved by improving the BCC's climate models, developing physically based statistical models as well as correction methods for model predictions.Some of the monitoring/prediction products of the BCC-CPPS are also introduced in this paper.Hong-Li REN Fei-Fei JIN Lianchun SONG Bo LU Ben TIAN Jinqing ZUO Ying LIU Jie WU Chongbo ZHAO Yu NIE Peiqun ZHANG Jin BA Yujie WU Jianghua WAN Yuping YAN Fang ZHOU 2017Journal of Meteorological Research2017,31,1:13
3Serum calciotropic hormone levels, and dental fluorisis in children exposed to different concentrations of fluoride and iodine in drinking water显示文摘BA Yue ZHU Jiang-yuan YANG Yue-jin YU Bo HUANG Hui WANG Gang REN Li-jun CHENG Xue-min CUI Liu-xin ZHANG Ya-wei 2010Chinese Medical Journal2010,,6:6
4Decomposition of hexachlorobenzene over Al_2O_3 supported metal oxidecatalysts显示文摘Decomposition of hexachlorobenzene(HCB)was investigated over several metal oxides(i.e.,MgO,CaO,BaO,La2O3,CeO2,MnO2, Fe2O3,and Co3O4)supported on Al2O3,which was achieved in closed system at a temperature of 300°C.Catalysts were prepared by incipient wetness impregnation with different metal oxides loading and impregnating solvents.The decomposition effciency of different catalysts for this reaction depends on the nature of the metal oxide used,and Al2O3 supported La2O3 was found to be the most active one.Pentachlorobenzene(PeCB),and all tetrachlorobenzene(TeCB),trichlorobenzene(TrCB),and dichlorobenzene(DCB)isomers were detected after the decomposition reaction,indicating that the decomposition was mainly a dechlorination process.The detection of all lower chlorinated benzenes suggested the complexity of decomposition and the presence of more than one dechlorination pathway.Lifei ZHANG Minghui ZHENG Bing ZHANG Wenbin LIU Lirong GAO Te BA Zhiyuan REN Guijin SU 2008Journal of Environmental Sciences2008,20,12:4
5Direct sunlight exposure reduces hair cortisol levels in rhesus monkeys(Macaca mulatta)显示文摘DEAR EDITOR,Major depressive disorder (MDD), commonly known as depression, is a mental disease characterized by a core symptom of low mood. It lasts at least two weeks (Badamasi et al., 2019;Wang et al., 2019) and is frequently accompanied by low self-esteem, loss of interest in routinely enjoyable activities, low energy, and unexplained pain (Huey et al., 2018;Park et al., 2012;Post & Warden, 2018;Rice et al., 2019;Xiao et al., 2018). Approximately 2%–8% of adults with MDD commit suicide (Richards & O'Hara, 2014;Strakowski & Nelson, 2015), and around half of suicidal individuals suffer depression or other mood disorders (Bachmann, 2018).Xiao-Li Feng He-Long Che Xi Ning Xue-Ying Ba Juan-Li Jing-Fang Zhang Yun Wang Zheng-Fei Hu Xin-Tian Hu Xiao-Feng Ren 2019Zoological Research2019,40,6:2
6Relationship between microstructure and corrosion behavior of high-grade pipeline steel in a low-temperature environment显示文摘The relationship between micro structure and corrosion behavior of high-grade pipeline steel under low-temperature conditions was comparatively investigated by the potentiodynamic polarization and electrochemical impedance spec-troscopy test combining with optical micrographs,scanning electron microscopy,transmission electron microscopy and electron back-scattered diffraction.The results showed that,compared with room and high temperature,low temperature could influence the corrosion behavior of high-grade pipeline steel,which means that the corrosion potential and current density decreased and the corrosion resistance increased significantly.Moreover,double layer structures of the interface became thicker and more compact.Under low-temperature environment,acicular ferrite had the martensite/austenite constituents with less amount and smaller size,a higher density of low angle grain boundaries and smaller effective grain sizes compared with granular bainite,which demonstrated higher corrosion resistance.Jia-qiang Jing Jie Guo Ba Li Shu-jun Jia Yi Ren 2021Journal of Iron and Steel Research(International)2021,28,8:2
7Immersing Treatment of Steel Plate Surface in Steel-Aluminum Solid to Liquid Bonding显示文摘The interfacial status of the steel-aluminum solid to liquid bonding plates (their steel plate surfaces were or were not immersed in flux aqueous solution) were measured by using SEM (Scanning Electron Microscope) and X-ray diffraction . The results showed that the layer of flux (the minimum thickness was 15 μm on the steel plate surface) could protect the steel plate surface from oxidizing effectively at high temperature in solid to liquid bonding. The melt temperatUre of the flux should be lower than 580 ℃ so that it could be melted and removed completely. No. 1 flux (patent product made by the author) made up of halogeindes could also force liquid aluminum to infiltrate into steel plate surface and thus the interfacial shear strength of the bonding plate was rather large.Peng Zhang Yunhui Du Xueping Ren Yonglin Kang Hanwu Liu Jianzhong Cui Limin Ba (Material Science and Engineering School, University of Science and Technique Beijing, Beijing 100083, China)(Metal Forming Department Northeastern University, Shenyang 1 1999International Journal of Minerals,Metallurgy and Materials1999,13,1:2
8Occurrence and characteristics of polybrominated dibenzo-p-dioxins and dibenzofurans in stack gas emissions from industrial thermal processes显示文摘Du B Zheng M H Tian H Liu A Huang Y Li L Ba T Li N Ren Y Li Y Dong S Su G 0,,10:1
9Significant Polymorphisms of Vitamin D Receptor Gene(rs2189480 and rs3847987) Related to the Risk of Type 2 Diabetes in Henan Rural Area显示文摘Type 2 diabetes mellitus (T2DM) accounts for 90% of all diabetes cases and results in severe complications. It is a multifactorial metabolic disorder that results from a combination of resistance to insulin action and an inadequate compensatory insulin secretory response. The interaction between multiple genetic and environmental determinants has been considered to contribute to the pathogenesis of T2DM[1].HAN Han ZHAO Ming Xu WANG Yan WANG Jun REN Bing Nan GE Hui Na WANG Teng SUN Bei Bei BA Yue LI Wen Jie 2019Biomedical and Environmental Sciences2019,32,1:1
10Multifunctional oxygen-enriching nano-theranostics for cancer-specific magnetic resonance imaging and enhanced photodynamic/photothermal therapy显示文摘The combination of photodynamic therapy(PDT)and photothermal therapy(PTT)has attracted much interest in recent years,but non-specific distribution of photosensitizers and intrinsic tumor hypoxic microenvironment have continued to limit its therapeutic efficiency.We herein report a nano-theranostic system,denoted as Ce6-CuS/MSN@PDA@MnO2-FA NPs,which combines PDT,PTT,magnetic resonance(MR)imaging with hypoxia-relieving and tumor-targeting functionalities.Central to this design is the use of mussel-inspired polydopamine(PDA)coating to encapsulate the chlorin e6(Ce6)and copper sulfide nanoparticles(CuS NPs)loaded mesoporous silica nanoparticle(MSN)core.The PDA coating not only acts as pH sensitive gatekeeper to prevent the premature release of Ce6 under non-acidic tumor microenvironment(TME),but also facilitates post-functionalization so that hypoxia-relieving MnO2 nano-sheets and tumor-targeting ligand folic acid-PEG-thiol(FA-PEG-SH)can be decorated on the outer part of the drug system.In vitro and in vivo measurements clearly demonstrated that all these functionalities worked synergistically as expected.The system,having a low dark cytotoxicity,can be effectively internalized by 4T1 cells and decrease the cell viability to 2%upon 660 nm/808 nm laser irradiation.Tumors in 4T1 tumor-bearing mice can almost be completely destroyed in 2 weeks via combined PDT/PTT.Together with the TME-sensitive MR imaging performance demonstrated,Ce6-CuS/MSN@PDA@MnO2-FA NPs represent a multifunctional prototype which holds great potential to be developed into clinical theranostics.Li Zhang Zhe Yang Jinghua Ren Li Ba Wenshan He Chun-Yuen Wong 2020Nano Research2020,13,5:1
11Germline manipulation of glucose homeostasis via alteration of glucose transporter levels in skeletal muscle 显示文摘Marshall BA Ren JM Johnson DW 1993J Bio Chem1993,268,18:1
12The genome of the cucumber,Cucumis sativus L显示文摘Huang S Li R Zhang Z Li L Gu X Fan W Lucas WJ Wang X Xie B Ni P Ren Y Zhu H Li J Lin K Jin W Fei Z Li G Staub J Kilian A van der Vossen E A G Wu Y Guo J He J Jia Z Ren Y Tian G Lu Y Ruan J Qian W Wang M Huang Q Li B Xuan Z Cao J Asan Wu Z Zhang J Cai Q Ba 0,,12:1
13Stilbenes from the roots of Pleuropterus ciliinervis and their antioxidant activities显示文摘Jong PL Ryung SM Ren BA 2003Phytochemistry2003,64,5:1
14Effects of continuous cooling rate on morphology of granular bainite in pipeline steels显示文摘The morphology and characteristics of granular bainite (GB) in pipeline steels at different continuous cooling rates were investigated by scanning electron microscopy, transmission electron microscopy and electron back-scattered diffraction (EBSD). The results show that the morphology of ferrite matrix in GB turned from the lath sheaf structure into the nearly equiaxed large grain with the cooling rate decreasing from high (60℃/s) to low (5-10℃/s). At the medium cooling rate (20-40℃/s), GB consisted of the irregular ferrite matrix, the granular martensite/austenite (M/A) constituents and abundant substructures inside. The formation of the irregular ferrite and substructure was attributed to the high-temperature recovery which occurred at relatively high-temperature stage before phase transformation. The granular morphology of M/A constitu-ents was formed from the carbon-rich triple junctions which were produced by the multidirectional substructure interfaces converged with each other. Particularly, some martensite in M/A constituents was misoriented from the adjacent ferrite by very small misorientation angle, which could be characterized by the mean band contrast function of EBSD qualitatively or semiquantitatively.Shu-jun Jia Ba Li Qing-you Liu Yi Ren Shuai Zhang Hong Gao 2020Journal of Iron and Steel Research(International)2020,27,6:1
15Fractals in Steel-Aluminum Solid to Liquid Bonding显示文摘Zhang, P Du, YH Ren, XP Ba, LM Liu, HW Cui, JZ 1999Journal of Materials Science & Technology1999,15,5:1
16Evidence from transgenie mice that glucose transport is rate-limiting for glycogen deposition and glycolysis in skeletal muscle 显示文摘Ren JM Marshall BA Gulve EA 1993J Biol Chem1993,268,16:1
17Stilbenes from the roots of Pleuropterus ciliinervis and their antioxidant activities 显示文摘Jong PL Byung SM Ren BA 2003Phytochemistry2003,64,5:1
18Two new species and one new combination of Stenosini (Coleoptera: Tenebrionidae) from Xizang, China 显示文摘Ba YB Ren GD 2013Acta Entomologica Muzei Nationalis Pragae2013,53,2:1
19Post-marketing Surveillance for Combined Oral Contraceptive Containing Desogestrel(Marvelon~) in Chinese Rural Areas显示文摘Objective To assess the side effects and the continuation rate of combined oral contraceptive(COC) containing desogestrel(Marvelon) during 12 months. Methods This was a post-marketing surveillance study on Marvelon COC among 870 healthy rural women in 5 different counties of Jiangsu Province during 12 months. Results About 24.02% of the women who used Marvelon COC experienced side effects during 12 months. Gastrointestinal disorder,bleeding/spotting and chloasma were ranked the first three in the side effects. The rate of side effects of Marvelon COC users during the first 3 months in southern area of Jiangsu was significantly higher than that of users in northern area of Jiangsu. Most of the users did not experience obvious weight changes i.e.,loss or increase in weight of more than 5 kg during 12 months. Blood pressure and biochemical indicators of almost 99% amongusers were within the normal range. The gross cumulative continuation rate for 12 months was 83.14%;the most common medical reason for discontinuation was gastrointestinal disorder. There was an increased risk of discontinuation use among women with lower educational level. Conclusion Marvelon COC brought fewer side effects and was well accepted when applied in Chinese rural women.Hong-yan TANG Ying LI Yu-lin WU Jian ZHOU Lei BA Xiao-ping GU Wei-dong WANG Hui YAO Nai-xiu REN Jian-hong CHEN Lian-fang XU 2008Journal of Reproduction and Contraception2008,19,4:1
20Long-term correction of diabetes in rats after lentiviral hepatic insulin gene therapy 显示文摘Ren B OSBrien BA Swan MA 2007Diabetologia2007,50,9:1
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