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Reed-wetland beds for municipal wastewater treatment

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Journal of Environmental Sciences 1992年第1期4卷 23-31页

作者： Tang Yunping, Mi Ruilan and Zhao Jinlingtianjin Environmental Protection institute, tianjin 3.0191,{3.Shen Weiran and Tian Shuhuitianjin Environmental Monitoring Center, tianjin 3.0191,{3.

The performance of 11 reed-wetland beds for municipal wastewater treatment is described in this paper. The interrelation between pollutants removal (BOD5, SS, N and P) and hydraulic loading rate, organic loading rate, hydraulic retention time as well as the seasonal variation could be found in this study. The treatment efficiencies of reed beds are better than the secondary treatment standards with high and steady nitrogen and phosphorus removal. The total nitrogen and phosphorus of the final effluent are less than 10 mg/L and 0.5 mg/L, respectively.

关键词： reedwetland beds municipal wastewater treatment china.

Continental- Margin Structure of Northeast china and Its Adjacent Areas

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Acta Geologica Sinica(English Edition) 1995年第3期69卷 241-258页

作者： Tang Kedong, Shenyang institute of geology and mineral {3., Shenyang,Liaoning ProvinceWang Ying,Bureau of geology and mineral {3. of Heilongjiang Province,Harbin, HeilingjiangHe Guoqi and Shao Ji’an Peking U niversity, Beijing Liu Xinzhu Shenyang institute of geology and mineral {3. Shenyang China

The continental margin of Northeast china and its adjacent areas is composed of two tectonic belts. The inner belt is a collage made up of fragments resulting from breakup of an old land with the north part related to the evolution of the Palaeo-Asian Ocean and the south part to the evolution of the Palaeo - Pacific Ocean. The outer belt is a Mesozoic terrane, which is a melange made up of fragments of the Late Palaeozoic to Early Mesozoic oceanic crust and the Late M esozoic trench *** existed another ocean-the Palaeo - Pacific Ocean during the period from the closing of the Palaeo-Asian Ocean to the opening of the modern Pacific Ocean or from the Devonian to Jurassic, and the ocean-floor spreading of the Palaeo - Pacific Ocean led to the formation of the above-mentioned tectonic belts. The development of the strike-slip fault system after the Late Jurassic and the formation of an epicontinental volcano -plutonic rock belt in the Late Cretaceous to Early Tertiary are attributed to the interaction between the modern Pacific plate and the Eurasian plate.

关键词： continental-margin structure Bohai Sea block Mesozoic terrane non- subducted ocean crust Palaeo - Pacific Ocean

^(40)Ar-^(3.)Ar thermochronology of two ductile shear zones from Yiwulüshan,West Liaoning Region: Age constraints on the Mesozoic tectonic events

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Chinese Science Bulletin 2002年第13期47卷 1113-1118页

作者： ZHANG Xiaohui, LI Tiesheng & PU ZhipingResearch Center of mineral resources Exploration, institute of {3. and Geophysics, Chinese Academy of Sciences, Beijing 100101, china Guangzhou institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 51 Research Center of mineral resources Exploration Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou China

Two ductile shear zones trending EW and NNE respectively not only controlled the tectonic framework of the northern North china, but also constrained the geody-namic background for gold mineralization in this region. Field observations and microstructural analyses reveal that the EW trending ductile shear zones are mainly contributed to dextral compressional deformation resulting from top-to-the-southeast oblique thrust shearing, whereas the NNE trending ones are genetically related to sinistral strike-slip and extensional faulting. One sample from the former yielded an 40Ar-3.Ar plateau age of (219±4) Ma (Bi) and two samples from the latter gave 40Ar-3.Ar plateau ages of (116± 2) Ma (Bi) and (127±3. Ma (Bi). These ages provide constraints on the top-to-the-southeast oblique thrusting event occurring in Late Triassic and the sinistral extensional and strike-slip faulting event which occurred in Early Cretaceous.

关键词： 40Ar-3.Ar age biotite ductile shear zone West Liaoning Region.

SPACE-TIME TEXTURE AND TECTONIC EVOLUTION OF QAMDO BLOCK IN EAST TIBET

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地学前缘 2000年第S1期7卷 175-177页

作者： Wang Mingjie, Wang Gaoming[WT5,5”BX](Chengdu institute of geology and mineral {3.,Chengdu 610082,china)

Qamdo block in the east Tibet lay in front of southwestern margin of the Yangtze landmass and was one of many micro\|blocks between the Gondwana and the Eurasia continents .It played an important role in the development of the multi\|arc\|basin system of the north sector of the Jinsha\|lancang\|nujiang rivers . Space\|time texture of the block reflected the tectonic evolution of the east Tibet and neighbouring areas directly, providing important information for evolutionary history of the east Tethys.1\ Crustal structure of the Qamdo block\;Crustal structure of the Qamdo block is characterized by “double basement and double cover”.By double basement is meant the Middle—Upper Proterozoic crystalline basement and the Lower Paleozoic folded basement. The Middle—Upper Proterozoic crystalline basement is composed of medium\|high\|grade metamorphic biotite\|plagiogneiss, plagioclase\|amphibole schist, nacritid intercalated with (intermediate\|) basic metavolcanite. These rocks are characteristic of strong ductile deformed metamorphic core complex. The zircon of gneiss yields an U\|Pb age of 1680～2200Ma while the basic metavolcanite give a Sm\|Nd age of *** Lower Paleozoic folded basement consists of the Lower Ordovician and Silurian. Basement of the Qamdo block is similar to that of the Yangtze landmass. By double cover we mean two covers consisting of the Upper Paleozoic and Mesozoic, respectively. The Upper Paleozoic is composed of carbonate and clastic rock which were formed from epicontinental to back\|arc basins. The Mesozoic consists of the Upper Triassic—Cretaceous concordant formations which were formed in a back\|arc foreland *** of the formations are molasse, neritic carbonate, paralic coal\|bearing rock and terrigenous red clastic rock from the bottom to the top.

关键词： East Tibet Qamdo block time\|space texture structural evol ution

^(40)Ar-^(3.)Ar ages of the Louzidian-Dachengzi ductile shear zone near Chifeng,Inner Mongolia and their tectonic significance

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Chinese Science Bulletin 2002年第15期47卷 1292-1297页

作者： ZHANG Xiaohui, LI Tiesheng, PU Zhiping & WANG HuiResearch Center for mineral resources Exploration, institute of {3. and Geophysics, Chinese Academy of Sciences, Beijing 100101, china Guangzhou institute of Geochemistry, Chinese Academy of Sciences, G Research Center for mineral resources Exploration Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou China

The Louzidian normal fault occurs as the eastern detachment fault of the Kalaqin metamorphic core complex. Field observations and microstructural analyses reveal that the Louzidian-Dachengzi ductile shear zone developed in its lower-plate was genetically related to sinistral strike-slips and extensional faulting. Two samples from this ductile shear zone yield 40Ar-3.Ar plateau ages of 13. Ma (Bi) and 126 Ma (Kp), which are concordant with their isochron ages. The plateau age of 13. Ma (Bi) records the formation age of the ductile shear zone. The inconsistent relationship between the earlier strike-slip ductile shear zone and the later normal fault makes the Kalaqin Quasi-metamorphic core complex distinctive from Cordil-leran nietamorphic core complex. These ages provide important geochronological data for putting constraints on the formation age and genesis of such ductile shear zones.

关键词： 40Ar-3.Ar age Sinistral strike-slip Louzidian-Dachengzi ductile shear zone Metamorphic core complex.

On the anomaly formula for the Cappell-Miller holomorphic torsion

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Science china Mathematics 2010年第12期53卷 3225-3241页

作者： LIU Bo & YU JianQing Chern institute of Mathematics & LPMC, Nankai University, tianjin 3.0071, china Chern institute of Mathematics & LPMC Nankai University

We present an explicit expression of the anomaly formula for the Cappell-Miller holomorphic torsion for Khler manifolds.

关键词： Cappell-Miller holomorphic torsion anomaly formula heat kernel

Information　Flow　Analysis　and　Feedforward　Neural　Network　Methodin　R＆D　Project－Selection

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Systems Science and Systems Engineering 1994年第3期4卷 218-226页

作者： HAN Wenxiu DING Ronggui institute of Systems Engineering, tianjin University, tianjin 3.0072,{3.

R&D project-selection plays a very important role in R&D *** or not a R&D project is selected scientifieally will spell its success or *** a decision making R&D project-selection is characttrized by multiple procedues,multiple conflicting and noncommensurate objectives,and these characteristics make a numer of traditional approaches invalid or *** this paper,information flow and feedforward neural network method in R&D project-selection are pmentedi Through theoretical analysis,illustrative examples and computational simulation,we show that the proposed approach is preferable to the traditonal ones in many aspects.

关键词： R&D project-selection MCDM knowledge Artificial Intelligence network

Transgenic mice designed to express human α-1,2-fucosyltransferase in combination of human DAF and CD59 to avoid xenograft rejection

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Science china(Life Sciences) 2008年第3期51卷 199-204页

作者： LIU BingQian1, CHENG ChuanYu1, WU YuDong1, WEI JinXing1, LI GuangSan2 & MA TengXiang3.1 Department of Urology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, china 2 institute of Genetics and Development Biology, Chinese Academy of Sciences, Beijing 100101, china 3.{3. institute of Urology, Second Hospital of {3. Medical University, {3. 3.0211, china Department of Urology the First Affiliated Hospital of Zhengzhou University Zhengzhou 450052 Chin

The expression of human α-1,2-fucosyltransferase (HT) or complement regulatory proteins has been proved as an strategy to overcome hypercute rejection in discordant xenogeneic organ transplantation. In this study, we examined whether peripheral blood mononuclear cells (PBMCs) from polytransgenic mice expressing the human HT, and complement regulatory proteins (DAF and CD59), can provide more effective protection against xenograft rejection. Transgenic mice were produced by co-injection of gene constructs for human HT, DAF and/or CD59. Flow Cytometry (FCM) was used to screen the positive transgenic mice. PBMCs from transgenic mice were incubated with 15% human serum to evaluate natural antibody binding, complement activation and expression of adhesion molecules. Three transgenes were strongly expressed in PBMCs of transgenic mice, and HT expression signifi- cantly reduced expression of the major xenoepitope galactose-α-1,3.galactose (α-Gal). Functional studies with PBMCs showed that co-expression of HT and DAF or CD59 markedly increased their re- sistance to human serum-mediated cytolysis when compared with single transgenic PBMCs. Moreover, the combined expression of triple transgenes in PBMCs led to the greatest protection against human serum-mediated cytolysis, avoided hyperacute rejection and reduced expression of adhesion mole- cules. Strong co-expression of triple transgenes was completely protected from xenograft hyperacute rejection and partially inhibited acute vascular rejection. The studies suggest that engineering mice to express triple molecules represents an critical step toward prolonging xenograft survival and might be more suitable for xenotransplantation.

关键词： α-1 2-fucosyltransferase complement regulatory proteins galactose-α-1 3.galactose hyperacute rejection acute vascular rejection

REE Geochemistry in the Weathered Crust of Granites, Longnan Area,Jiangxi Province

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Acta Geologica Sinica(English Edition) 1990年第2期64卷 193-209,237页

作者： Wu Chengyu Huang Dianhao Guo Zhongxun institute of mineral Deposits, Chinese Academy of Geological Sciences, Beijing Geological Survey Party of South Jiangxi, Jiangxi Bureau of geology and mineral resources, Ganzhou, Jiangxi Chinese Academy of Geological Sciences Beijing China

Warm and humid climate and gentle hilly topography have provided favourable conditions for the devel-opment of the weathering crust of the granite intrusions in the Longnan area, Jiangxi Province. REE is mostlyconcentrated in an adsorption state in clay in the wholly weathered zone. The rare-earth minerals enriched inthe parent rocks provided the source material for the REE enrichment. Exchangeable REE accounts for48-86%. Extraction experiments and stable isotopic study of clay minerals suggest that the downward infiltra-tion of meteoric water and increasing gradient of pH values have played an important role in the enrichment ofREE during the progressive weathering. Slight fractionation of individual REE can not change their distribu-tion patterns in the profiles. which are inherited from the parent rocks.

关键词： REE Geochemistry in the Weathered Crust of Granites Longnan Area,Jiangxi Province