维普中文期刊产品整合服务
45篇 您的检索式:作者名="Congxian"
    题名 作者 年代 出处 被引量
1REE geochemistry of suspended sediments from the rivers around the Yellow Sea and provenance indicators显示文摘Rare earth element (REE) compositions of the suspended sediments from the rivers around the Yellow Sea were different in that Korean river sediments (Han, Keum and Yeongsan Rivers) yield stronger fractionations than Chinese river sediments (Changjiang, Huanghe and Yalujiang), shown by obvious enrichments of LREE (light rare earth element) relative to UCC (upper continental crust). Variations of source rock compositions in the drainage basins are responsible for the differences of REE compositions between the river sediments. REE fractionation parameters including (La/Yb)UCC and (Gd/Yb)UCC as well as the ratios of La/Sc and Th/Sc can be treated as proper proxies for identifying the Chinese river sediments from those Korean river matters, and furthermore, for studying the provenances and paleoenvironmental changes of the marginal seas of China.YANG Shouye LI Congxian C. B. Lee T. K. Na 2003Chinese Science Bulletin2003,48,11:30
2New Progress in the Cause Analysis and Nursing of Respiratory Tract Infection after Abdominal Surgery under General Anesthesia显示文摘This article provides a review of the causes of respiratory tract infection after abdominal surgery. These causes include general anesthesia, intubation factors, factors inherent to the patient, surgical factors, the injudicious use of antimicrobial agents, and the environmental factors of the ward. The perioperative management of the respiratory tract should be strengthened. Health education, respiratory function training, oral nursing intervention,atomization inhalation, and personalized expectoration methods should receive more attention to decrease the complications and promote the early rehabilitation of patients after abdominal surgery.Congxian Yang 2016国际感染病学(电子版)2016,5,3:5
3SEDIMENT LOAD AND ITS INFLUENCE ON CHANNEL PROCESSES OF SOME LARGE RIVERS IN RUSSIA AND CHINA显示文摘The sediment load, particle size distribution, and ratio between suspended and bed load components. are analyzed for some large rivers in Russia and China. The relationship is shown between the longitudinal changes in sediment load and the directions of vertical river channel deformation, i.e. river incision or sedimentation, which in turn are supported by results of analysis of long-term stage discharge curves. It seems that branching channels are common for the rivers, except where the sediment load is great (such as in the Yellow River). Conditions for forming different types of river channels are defined with the help of diagrams showing the water discharge-slope and slopesediment concentration relationships.LIU Shuguang,CHALOV R.S, WU Dandan, LI Congxian Postdoctor, Research Fellow, Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China & Researcher, State Key Laboratory of Estuarine and Coastal Research, Shanghai 200062,China Professo 2000International Journal of Sediment Research2000,15,3:3
4Palynomorphs in the first paleosol layer in the Yangtze Delta and their paleoenvi-ronmental implication显示文摘The relatively abundant palynomorphs were recovered from the samples of the first paleosol layer of core CY in Shanghai for the first time. A total of 55 genera and families of spore, pollen and phytoplankton were identified. According to the characteristics of the palynological assemblages, the depositional conditions in the development period of the paleosols were discussed and the microfossil evidence to study the origin of the paleosols in the Yangtze Delta area was provided as well. The research results show that paleosols should be freshwater deposits. The palynological assemblage sequence in the first paleosol layer reveals fluctuations of freshwater palynomorphs, mainly Concentricystis, and terricolous herbs pollen, reflecting the alternations of deposition and exposure in the development period of the paleosols. Concentricystis developed prosperously in the period of flood, while terricolous herbs grew on the emerged land in the period of exposure. The variations in the palynologicalWU Guoxuan QIN Jungan DENG Bing LI Congxian 2002Chinese Science Bulletin2002,47,21:2
5Temporal distribution of diastems in deposits of an open-coast tidal-flat with high suspended sediment concentrations 显示文摘Fan Daidu Li Congxian Archer A W 2002Sedimentary Geology2002,152,:1
6Holoceneregression and the tidal radial sand ridge system formationin the Jiangsu Coastal Zone, East China 显示文摘LI Congxian ZHANG Jiaqiang FAN Daidu 2001MarineGeology2001,173,1234:1
7Geochemical compositions of core sediments in eastern China: Implication for Late Cenozoic palaeoenvironmental changes 显示文摘Yang Shouye Li Congxian Cai Jingong 2006Palaeogeography Palaeoclimatolo- gy Palaeoecology2006,229,:1
8Geochemical compositions of core sediments in eastern China: Implication for Late Cenozoic palaeoenvironmental changes显示文摘Shouye Yang Congxian Li Jingong Cai 2005Palaeogeography Palaeoclimatology Palaeoecology2005,,4:1
9Two unique weathering regimes in the Changjiang and Huanghe drainage basins : geochemical evi- dence from river sediments 显示文摘Yang Shouye Jung Hoi - Soo Li Congxian 2004Sedimentary Geology2004,164,2:1
10Characteristic and paleoenvironmental evolution ofsubaerial tidal sand body in Subei Coastal Plain 显示文摘LI Congxian ZHANG Jiaqiang YANG Shouye 1999Science in China:Earth Sciences1999,42,1:1
11Late Quaternary incised-valley fill of the Yangtze Delta (China) : its stratigraphic framework and evolution 显示文摘Li Congxian Wang Ping Sun Heping 2002Sedimentary Geology2002,152,:1
12Elemental compositions and monazite age patterns of core sediments in the Changjiang Delta: Implications for sediment provenance and development history of the Changjiang River显示文摘Shouye Yang Congxian Li Kazumi Yokoyama 2006Earth and Planetary Science Letters2006,,3:1
13Geochemical compositions of core sediments in eastern China: Implication for Late Cenozoic palaeoenvironmental changes显示文摘Shouye Yang Congxian Li Jingong Cai 2005Palaeogeography Palaeoclimatology Palaeoecology2005,,4:1
14Late Quaternary incised-valley fill of the Yangtze delta (China): Its stratigraphic framework and evolution 显示文摘Congxian Li Ping Wang Heping Sun 2002Sedimentary Geology2002,152,:1
15A preliminary study on sediment flux in the Changjiang Delta during the Postglacial period 显示文摘Li Baohua Li Congxian Shen Huanting 2003Science in China ( Series D)2003,46,7:1
16Sources of sediments filling the Qiantangjiang estuary incised valley since the Last Glaciation显示文摘The volumes of each sedimentary facies in the Qiantongjiang estuary area have been calculated based on layer thickness data of about 100 bores. The sediment sources of each facies have been discussed on the basis of the previous work and the above calculations.Guijia Zhang Congxian Li 1998Chinese Science Bulletin1998,43,15:1
17Chemical weathering of the loess deposits in the lower Changjiang Valley, China, and paleoclimatic implications显示文摘YANG Shouye LI Congxian YANG Dayuan 2004Quaternary International2004,117,:1
18Elemental composition in the sediments of the Yangtze and the Yellow Rivers and their tracing implication显示文摘Yang Shouye Li Congxian 2000Progress in Nature Science2000,10,:1
19Two unique weathering regimes in the Changjiang and Huanghe drainage basins: geochemical evidence from river sediments显示文摘Shouye Yang Hoi-Soo Jung Congxian Li 2003Sedimentary Geology2003,,1:1
20Late Quaternary Incised-valley Fill of the Yangtze Delta (China):Its Stratigraphic Framework and Evolution显示文摘 Wang Ping Sun Heping 2002Sedimentary Geology2002,152,:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 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