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18篇 您的检索式:作者名="Jiedong Yang"
    题名 作者 年代 出处 被引量
1Sr-Nd isotope geochemistry of eolian dust of the arid-semiarid areas in China: Implications for loess provenance and monsoon evolution显示文摘Minerals and rocks have distinct 87Sr/86Sr and 143Nd/144Nd ratios, depending on their geological origin and ages, and these isotope ratios are less altered than elemental composition during transport in the atmosphere or after deposition as sediments, thus stable isotopes of Sr and Nd have great potential as tracers for provenance and trans- port of materials. During the hypergene process, Sr isotope ratios of sediments are controlled by their parent rocks, particle sizes and chemical weathering. In general, the higher the Sr isotope ratios of parent rocks, and/or the more the fine-grained fractions, and/or the stronger the chemical weathering, thus the higher the Sr isotope ratios of sediments. On the contrary, there are lower Sr isotope ratios of sedi- ments. Nd isotope ratios of sediments, independent of their particle sizes and chemical weathering, are only associated with parent rocks. For the prove- nance of the Chinese Loess Plateau, different re- seachers drew discordant and even contradictory conclusions by using the method of Sr-Nd isotopic tracing. From the previous Nd isotope data, it is con- sidered that the Tarim Basin, deserts in the central and west parts of Inner Mongolia and the Tibetan Plateau are the main sources of the Chinese Loess Plateau, and are also manufacturers for eolian dust of the Far East regions, together with the Chinese Loess Plateau. Sr isotope ratios of eolian dust are solely affected by wind sorting and weather- ing-pedogenesis due to its homogeneous composi- tion in the Chinese Loess Plateau. Wind sorting isrelated to the East Asian winter monsoon but weath- ering-pedogenesis is mainly associated with the East Asian summer monsoon. Studies on Sr isotopic compositions of the loess-paleosol sequence suggest that 87Sr/86Sr ratios in acid-soluble materials are an index for chemical weathering intensity of the Chi- nese Loess Plateau, indicating the East Asian sum- mer monsoon variations, whereas 87Sr/86Sr ratios in acid-insoluble materials are significantly controlled by particle sizes, and can be used as a proxy indicator reflecting the East Asian winter monsoon variations. Variations of 87Sr/86Sr ratios in acid-insoluble materi- als in the past 2.6Ma further demonstrate that the East Asian winter monsoon gradually strengthened since the beginning of the Quaternary period. This result agrees with the prior conclusion that climate gradually cooled since the onset of the Quaternary Ice Age.RAO Wenbo YANG Jiedong CHEN Jun LI Gaojun 2006Chinese Science Bulletin2006,51,12:21
2Sr, Nd and O Isotopic Studies on the Genesis of the Huashan Granite Complex显示文摘Systematical Sr, Nd and O isotopic studies were made on the Huashan granite complex in Guangxi. Incombination with the studies of geological, petrological and geochemical data, it is believed that the complexconsists of granites of three stages. with different geneses and different source materials. They are not the prod-ucts of differentiation and evolution of one single consanguineous magma. Granites of the 1st stage are of theIndosinian syntectic type or I type, also derived from a mixed mantle-crustal source. Those of the 2nd stage areof the early Yanshanian syntectic type or I type. also derived from a mixed mantle-crustal source, and those ofthe 3rd stage are of the late Yanshanian transformed type or S type. derived from a crustal source.Zhu Jinchu Li Xiangdong Shen Weizhou Wang Yinxi Yang Jiedong Department of Earth Sciences, Nanjing University, Nanjing, Jiangsu Department of Materials Analysis, Nanjing University, Nanjing, Jiangsu Jia Zhongpeng 1990Acta Geologica Sinica(English Edition)1990,64,1:5
3Analysis of Nitrosamines Migration from Condoms in the Chinese Market Using a Proper Migration Experiment显示文摘Di Feng Qingfeng Zhou Xuelian Cheng Jiedong Wang Quanli Yang 2010Bulletin of Environmental Contamination and Toxicology2010,,4:1
4Detection and toxicity assessment of nitrosamines migration from latex gloves in the Chinese market显示文摘Di Feng Huiping Wang Xuelian Cheng Jiedong Wang Lifeng Ning Qingfeng Zhou Yue Zhou Quanli Yang 2009International Journal of Hygiene and Environmental Health2009,,5:1
5Silicate weathering and C02 consumption deduced from the seven Chinese rivers originating in the Oinghai-Tibet Plateau显示文摘Wu Weihna Xu Shijin Yang Jiedong 2008Chemical Geology2008,249,:1
6Variations in Sr and C isotopes and Ce anomalies in successions from China:Evidence for the oxygenation of Neoproterozoic seawater?显示文摘Yang Jiedong Sun Weiguo Wang Zongzhe 199993(2/3):215-2331999,93,23:1
7Mineralogy, major and trace element geochemistry of riverbed sedi- ments in the headwaters of the Yangtze, Tongtian River and Jinsha River显示文摘Wu Weihua Xu Shijun Lu Huayu Yang Jiedong Yin Hongwei Liu Wen 2011Journal of Asian Earth Sciences2011,40,:1
8Silicate weathering and CO2 consumption deduced from the seven Chinese rivers originating in the Qinghai-Tibet Plateau显示文摘Weihua Wu Shijin Xu Jiedong Yang 2008Chem Geol2008,159,14:1
9Nd and Sr isotopic characteristics of Chinese deserts: Implications for the provenances of Asian dust显示文摘Jun Chen Gaojun Li Jiedong Yang Wenbo Rao Huayu Lu William Balsam Youbin Sun Junfeng Ji 2007Geochimica et Cosmochimica Acta2007,,15:1
10Study on the Nd-Sr isotope of the Xihuashan granite显示文摘Shen Weizhou Xu Shijin Wang Yinxi Yang Jiedong 1994Chinese Sci Bull1994,39,8:1
11Variations in 87Sr/86Sr ratios of calcites in Chinese loess:a proxy for chemical weathering associated with the East Asian summer monsoon 显示文摘 Chen Jun An Zhisheng 2000Palaeogeography Palaeoclimatology Palaeoecology2000,157,:1
12Variations in Sr and C isotopes and Ce anomalies in successions from China: Evidence for the oxygenation of Neoproterozoic seawater? 显示文摘Yang Jiedong Sun Weiguo Wang Zongzhe Xue Yaosong Tao Xiancong 1999Precamb Res1999,93,23:1
13Vanations in Sr and C isotopes and Ce anomalies in successions from China: Evidence for the oxygenation of Neoproterozoic seawater显示文摘Yang Jiedong Sun Weiguo Wang Zongzhe 1999Precambrian Rcseaeh1999,93,:1
14Variation in 87Sr/86Sr ratios of calcites in Chinese loess:A proxy for chemical weathering associated with the East Asian summer monsoon显示文摘 Chen Jun An Zhisheng 2000Palaeogeography Palaeoclimatology Palaeoecology2000,157,:1
15Nd, Sr and O Isotopic Study on Spilite-Keratophyre in Xiqiu,,Zhejiang Province, China显示文摘Nd, Sr and O isotopic study on the spilite-keratophyre sequence in Xiqiu shows that its ∈Nd values are inthe range of 4.02-5.26, and its ∈Sr values, +1.4-2.6. According to the points of these data in the ∈Nd-T,∈Sr-T and ∈Nd-∈Sr diagrams, the spilite-keratophyre is interpreted as being slightly contaminated by crustalmaterials. Its δ18O values are 3.9-5.0‰. The depletion of 18O in the rocks resulted from the influence ofseawater hydrothermal alteration during or soon after the rock formation. Based on the isotopic characteristicsand available geochemical data, it is believed that the spilite-keratophyre was formed in the well-developedisland-arc environment during the Late Proterozoic subduction of the palaeo-Pacific plate beneath thesoutheastern margin of the Yangtze massif.Shen Weizhou Zhang Bangtong Ling Hongfei Lai Mingyian Yang Jiedong Tao Xiancong Department of Earth Sciences, Nanjing University, Nanjing, Jiangsu Modern Analysis Centre, Nanjing University, Nanjing, Jiangsu 1992Acta Geologica Sinica(English Edition)1992,66,2:0
16Sm-Nd isotopic ages of Tiqiushan eclogites in Xinyi region and its geological significance显示文摘GEOLOGICAL scientists have paid much attention to the suture zones formed by collision between the Sino-Korean and Yangtze blocks because of the discovery of the ultrahigh pressue metamorphic (UHPM) rocksfrom northern Jiangsu Province (Su), southern Shandong Province (Lu) and the Dabie Mountains.Although the age of 200-240 Ma is probably the best estimation for UHPM metamorphism in the DabieMountains, the primary intrusive and metamorphic ages of the complex from northern Jiangsu Provincehave not been determined before. Using the Sm-Nd isotopic dating method, our study is aimed at datingthe UHPM metanorphic event of northern Jiangsu Province and researching a probable relation between theUHPM rocks from the Dabie Mountains and the UHPM rocks from northern Jiangsu Province.WANG Yinxi~(1,2), YANG Jiedong~(1,2), TAO Xiancong~(1,2), GE Ningjie~4, CHEN Peirong~3, FAN Chunfang~3 and LI Jianhua~5 1. Center of Modern Analysis, Nanjing University, Nanjing 210093, China 2. State Key Laboratory for Research of Mineral Deposits, Nanjing University, Nanjing 210093, China 3. Department of Earth Science, Nanjing University, Nanjing 210093, China 4. Department of Earth and Space Sciences, University of Science and Technology of Chian, Hefei 230026, China 5. No.5 Geological Party of Jiangsu Province, Xuzhou 221005, China 1999Chinese Science Bulletin1999,44,S2:0
17Origin and age of Mn deposits of the Nantuo Formation in the Sinian System显示文摘THE tillites in the Nantuo Formation of the Sinian System is considered contemporary with theVaranger ice age. The manganese deposits in the Nantuo Formation are most suitable to iso-topic dating and may record the precious information on paleo-ocean chemistry. However,there have heen different views and disputations about their origin and age for a long time. The Sinian System in the Yangtze region is divided into 3 formations from base to top:the Nantuo Formation, the Doushantuo Formation and the Dengying Formation. TheYANG Jiedong, WANG Zongzhe, XUE Yaosong, SUN Weiguo, TAO Xiancong and ZHOU Chuanming1. Center of Modern Analysis, Nanjing University, Nanjing 210093, China 2. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China 1997Chinese Science Bulletin1997,42,24:0
18Inappropriate Activation of TLR4/NF-κB is a Cause of Heart Failure显示文摘Significance:Heart failure,a disease with extremely high incidence,is closely associated with inflammation and oxidative stress.The Toll-like receptor 4(TLR4)/nuclear factor kappa-B(NF-κB)pathway plays an important role in the occurrence and development of heart failure.Recent advances:Previous studies have shown that TLR4/NF-κB causes heart failure by inducing oxidative stress and inflammation;damaging the endothelia;promoting fibrosis;and inducing myocardial hypertrophy,apoptosis,pyroptosis,and autophagy.Critical issues:Understanding the pathogenesis of heart failure is essential for the treatment of this disease.In this review,we outline the mechanisms underlying TLR4/NF-κB pathway-mediated heart failure and discuss drugs that alleviate heart failure by regulating the TLR4/NF-κB pathway.Future directions:During TLR4/NF-κB overactivation,interventions targeting specific receptor antagonists may effectively alleviate heart failure,thus providing a basis for the development of new anti-heart failure drugs.Jiedong Zhou Hui Lin Tingting Lv Jinjin Hao Hanlin Zhang Shimin Sun Juntao Yang Jufang Chi Hangyuan Guo 2022Cardiovascular Innovations and Applications2022,7,3:0
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