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Sequence stratigraphic framework and distribution of depositional systems for the Paleogene in Liaodong Bay area

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Science china Earth Sciences 2008年第S2期51卷 1-10页

作者： ZHU XiaoMin1,DONG YanLei1,YANG JunSheng1,ZHANG Qin1,LI DeJiang2,XU ChangGui3 & YU Shui3 1 National Key Laboratory of Petroleum Resources and Prospecting,china University of Petroleum,Beijing 102249,china 2 Research institute of Petroleum Exploration and Development——Langfang,Petrochina,Langfang 065007,china 3 Technology department of CNOOC tianjin Company,tianjin 300452,china china Univ Petr Natl Key Lab Petr Resources & Prospecting Beijing 102249 Peoples R China Petrochina Res Inst Petr Explorat & Dev Langfang Langfang 065007 Peoples R China CNOOC tianjin Co Dept Technol Tianjin 300452 Peoples R China

With a comprehensive geological and geophysical data base,the Paleogene in the Liaodong Bay area,which consists of the Kongdian,Shahejie and Donghying Formations from the base to top,was divided into 4 second-order sequences and 8 third-order sequences based on the characteristics of the se-quence boundaries. Each third-order sequence is subdivided into the lowstand,lake transgressive and highstand systems tracts. The Lowstand systems tract (LST) is mainly composed of progradational parasequence sets,while the lake transgressive systems tract (TST) largely consists of the retrograda-tional parasequence sets and the highstand systems tract (HST) is dominated by the progradational parasequence sets. The main types of depositional systems include the shallow lake,semi-deep lake,deep lake,delta,fan delta,braided fluvial delta and nearshore subaqueous fan. The braided fluvial delta and fan delta depositional systems are mainly confined to the sequences of the lower SEs4-Ek,SEs3 and SEs1+2,while the sequences of SEd3,SEd2 and SEd1 are dominated by the delta and nearshore subaqueous fan depositional systems with the latter being developed at the downthrown side of the basin-bounding fault in each sequence. The evolution of the depositional systems is always con-trolled by the paleo-tectonic setting and the ancient landform in the space and geological time. It is concluded that the most favorable reservoirs are distributed in the Liaoxi low uplift and the central Liaozhong sag.

关键词： Liaodong Bay area Paleogene sequence stratigraphy sequence boundary depositional system

Chlorination of water containing bromide and formation of the bromine－substituted trihalomethanes

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Journal of Environmental Sciences 1995年第4期7卷 443-448页

作者： Li Junwen , Yu Zuobin , Chao Fuhuan , Cai Xinpei(institute of Hygiene and Environmental medicine, tianjin 300050 , china) Inst of Hygiene & Envmtl medicine Tianjin 300050 China

Ｃｈｌｏｒｉｎａｔｉｏｎｏｆｗａｔｅｒｃｏｎｔａｉｎｉｎｇｂｒｏｍｉｄｅａｎｄｆｏｒｍａｔｉｏｎｏｆｔｈｅｂｒｏｍｉｎｅ－ｓｕｂｓｔｉｔｕｔｅｄｔｒｉｈａｌｏｍｅｔｈａｎｅｓＬｉＪｕｎｗｅｎ，ＹｕＺｕｏｂｉｎ，Ｃｈａ... 详细信息

Ｃｈｌｏｒｉｎａｔｉｏｎｏｆｗａｔｅｒｃｏｎｔａｉｎｉｎｇｂｒｏｍｉｄｅａｎｄｆｏｒｍａｔｉｏｎｏｆｔｈｅｂｒｏｍｉｎｅ－ｓｕｂｓｔｉｔｕｔｅｄｔｒｉｈａｌｏｍｅｔｈａｎｅｓＬｉＪｕｎｗｅｎ，ＹｕＺｕｏｂｉｎ，ＣｈａｏＦｕｈｕａｎ，ＣａｉＸｉｎｐｅｉ...

关键词： chlorination bromination bromine - substituted THMs.

Stochastic DEA model with undesirable outputs: An application to the prediction of anti-HIV therapy efficiency

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Progress in Natural Science:Materials International 2006年第7期16卷 753-759页

作者： BIAN Fuping and TANG Xiaoqin ( department of Mathematics, School of Science, tianjin University, tianjin 300072, china Liuhui institute of Applied Mathematics, Nankai University and tianjin University, tianjin 300072, china) [a]department of Mathematics School of Science Tianjin University Tianjin China [b]Liuhui institute of Applied Mathematics Nankai University and Tianjin University Tianjin China

This paper proposes a stochastic prediction DEA model with undesirable outputs and simplifies the process using chance-constrained techniques in order to obtain an equivalent linear programming formulation. The existence and stability of the optimal solutions have been proved. And the model is used to describe and predict the efficiency of anti-HIV therapy in AIDS patients.

关键词： data envelopment analysis (DEA) decision making units (DMU) undesirable outputs stochastic DEA model anti-HIV therapy.

A molecular dynamics simulation of the structure of ionic liquid (BMIM^+/PF_6^-)/rutile (110) interface

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Science china Chemistry 2009年第9期52卷 1434-1437页

作者： WANG Shu1, CAO Zhen1, LI Shu1 & YAN TianYing1,2 1 institute of New Energy Material Chemistry and department of Material Chemistry, Nankai University, tianjin 300071, china 2 institute of Scientific Computing, Nankai University, tianjin 300071, china institute of New Energy Material Chemistry and department of Material Chemistry Nankai University Tianjin 300071 China institute of Scientific Computing Nankai University Tianjin 300071 China

The interfacial structure between the room-temperature ionic liquid, 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIM+/PF6-) and rutile (110) surface is simulated by classical molecular dynam-ics simulation, aiming to model a crucial constituent of the electrolyte/semiconductor interface. The simulation results show several enhanced layers forming in the interfacial region, especially for the anions. A well ordered double layering structure of the ions is also observed in the interfacial region. The cations are found to organize themselves in a parallel alignment with respect to the TiO2 slab, with an obvious elongation of the side chains.

关键词： molecular dynamics simulation ionic liquid rutile (110) interface

Repair effect of diabetic ulcers with recombinant human epidermal growth factor loaded by sustained-release microspheres

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Science china(Life Sciences) 2008年第11期51卷 1039-1044页

作者： DONG XiaoQing1, XU Jun2, WANG WeiCai1, Luo Hao1, LIANG XiaoFei1, Zhang Lei1, Wang HanJie1, Wang PengHua2 & CHANG Jin1 1 institute of Nanobiotechnology, School of Materials Science and Engineering, tianjin University, tianjin 300072, china 2 department of Diabetic Foot, tianjin Medical University Metabolic Disease Hospital, tianjin 300070, china 1. institute of Nanobiotechnology School of Materials Science and Engineering Tianjin University Tianjin 300072 China 2. department of Diabetic Foot Tianjin Medical University Metabolic Disease Hospital Tianjin 300070 China

In this study the w/o/w extraction–evaporation technique was adopted to prepare poly(lactic-co-glycolic acid) (PLGA) microspheres loading recombinant human epidermal growth factor (rhEGF). The micro-spheres were characterized for morphology by transmission electron microscopy (TEM) and particle size distribution. The release performances, the proliferation effects and therapeutic effects of rhEGF-loaded PLGA microspheres were all studied. The results showed that these spherical micro-spheres had a narrow size distribution and a high drug encapsulation efficiency (85.6%). RhEGF-loaded microspheres enhanced the growth rate of fibroblasts and wound healing more efficiently than pure rhEGF. The number of the proliferating cell nuclear antigen (PCNA) in the epidermis layer with the mi-crosphere treatment was significantly larger than those of the control groups. Overall locally sustained delivery of rhEGF from biodegradable PLGA microspheres may serve as a novel therapeutic strategy for diabetic ulcer repair.

关键词： rhEGF microspheres the diabetic ulcer recombinant human epidermal growth factor PLGA

RISK ANALYSIS AND MANAGEMENT OF URBAN RAINSTORM WATER LOGGING IN tianjin

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Journal of Hydrodynamics 2006年第5期18卷 552-558页

作者： HAN Su-qin XIE Yi-yang LI Da-ming LI Pei-yan SUN Mei-ling College of Environmental Science and Engineering Nankai University Tianjin 300071 China Tianjin Meteorology Institute Tianjin 300074 China tianjin Meteorology institute Tianjin 300074 China School of Civil Engineering Tianjin University Tianjin 300072 China

The risk analysis of urban rainstorm water logging facing tianjin city by using methods of probability, investigation and numerical simulation was carried out in this article. Firstly, a mathematical model for the urban rainstorm water logging was established on the basis of one- and two-dimensional unsteady flow theory and the technique of non-structural irregular grid division, Secondly, the precipitation over heavy rain was divided into seven grades, the experiential expression of frequency and rain grades was got according to the observed rainfall from May 1918 to October 1998. Thirdly, the mathematical model was used to simulate various rain process according to the features of the rainstorm and the draining rule, based on the simulated maximum water depths, 3 class of disaster extents were established, the disaster risks were mainly in Class Ⅰ and Class Ⅱ, The risk analysis of water logging on traffic were primarily evaluated, and finally, some management and mitigation measures of the urban rainstorm water logging disaster were discussed.

关键词： urban rainstorm water logging mathematical model traffic disaster risk analysis,tianjin

TFEL of Ce^(3+) in zine sulpho-oxide

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Chinese Science Bulletin 1998年第14期43卷 1179-1183页

作者： YU Lei\+1, LOU Zhidong\+1, XU Chunxiang\+1, XU Zheng\+2 and XU Xurong\+2 1. institute of Material Physics, tianjin institute of Technology, tianjin 300191, china 2. department of Physics, Northern Jiaotong University, Beijing 100044, china institute of Material Physics Tianjin Institute of Technology Tianjin China department of Physics Northern Jiaotong University Beijing China

A new TFEL material ZnS X O 1-X : Ce 3+ is prepared. The EL brightness of ZnS X O 1-X : Ce 3+ is at least one order higher than that of ZnS: Ce 3+ at the same doping concentration of Ce 3+ . The EL emission wavelength of ZnS X O 1-X : Ce 3+ (\%X\%=0.5) ranges from 400 to 600 nm. The emission of ZnS X O 1-X : Ce 3+ may be used as the blue part of white TFEL.

关键词： thin_film electroluminescence (TFEL) filter layered optimization zine sulpho_oxide.

Discussion of the Realistic Tendency in Contemporary American Short Fiction

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兰州大学学报（社会科学版） 2000年第S1期28卷 196-201页

作者： Xu Ming 1 Guo Hong 2 (1 Foreign Languages department, tianjin Engineering institute, tianjin, 300191 2 Foreign Languages department, Northwest Normal University, Lanzhou, 730073, china)

In the post World War Ⅱ decades, there is a strong realistic trend in American Short stories. The great achievement made by the new realistic short stories has contributed much to the post war flourishing of American... 详细信息

关键词： American short stories realistic trend post war thematics concern

Zircon geochronology and geochemistry of mafic xenoliths from Liaoning kimberlites:Track the early evolution of the lower crust,North china Craton

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Science china Earth Sciences 2004年第11期47卷 961-972页

作者： ZHENG Jianping1,YU Chunmei1,LU Fengxiang1 & LI Huimin2 1.Faculty of Earth Sciences,china University of Geosciences,Wuhan 430074,china 2.tianjin institute of Geology and Mineral Resources,tianjin 300170,china 1. Faculty of Earth Sciences China University of Geosciences 430074 Wuhan China 2. tianjin institute of Geology and Mineral Resources 300170 Tianjin China

Mafic xenoliths from Paleozoic Fuxian kimberlites (Liaoning Province) mainly in- clude garnet granulite, with minor pyroxene amphibolite, meta-gabbro and pyroxene syenite. The SiO2 contents of the xenoliths are from 47.3 wt% to 49.9 wt%. The granulites are mainly coarse-medium grained and reasonably with well-developed granoblastic (mostly polygonal) texture, contain the assemblage of garnet + plagioclase + pyroxene + K-feldspar ±phlogopite. The mineral assemblage of the amphibolites is plagioclase + pyroxene + amphibole ±K-feldspar, with the equilibrium temperature and pressure conditions of 744—821℃ and 0.76—0.88 GPa. The granulites are regarded as derivation from the lower crust depth (more than 29 km), below the amphibolites. Garnet granulites compositionally correspond to sub-alkalic basalt, and have wide ranges of Ni abundance (133—840 ppm), and Nb/Y (0.12—1.85), Nb/U (3.51—53.86) and Ta/U (0.38—2.48). The amphibolite and the syenite correspond to alkalic basalt. The Fuxian ma- fic xenoliths are regarded as the metamorphic product of the underplated magmas (including fractional crystallization or not) experienced the contamination with the pre-existed crustal com- ponents, and partly effected by kimberlitic magmas. The concordant ages of zircons for the gab- bro (2610—2580 Ma) and the near-concordant upper intercept ages of zircons for the garnet granulite and pyroxene amphibolite (2578—2538 Ma) indicate that they are currently known as the oldest deep-seated xenoliths from the lower crust of the North china Craton. These ages recorded the formation of the united Eastern Block of the North china Craton, That is, Neoar- chean (2.6—2.5 Ga) is an important continental crustal growth period of the North china Craton. The lower intercept age of the garnet granulite (1853 Ma) recorded an important tectonic thermal event in Paleoproterozoic. This event was probably related to collision of the East and West block, and resulted in the final assembly of the North china

关键词： mafic xenolith, petrochemistry, zircon geochronology, petrogenesis, lower crustal evolution, North china Craton.