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A distributed hydrological model with its application to the Jinghe watershed in the Yellow River Basin

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Science China(Technological Sciences) 2004年第Z1期47卷 60-71页

作者： WANG Zhonggen1, ZHENG Hongxing1, LIU Changming1, , WU Xianfeng2 2 & ZHAO Weimin3.1. Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, beijing 100101, China 2. Institute of environmental Science, beijing Normal University, beijing 100875, China 3. Water Resources Conservation Committee of Yellow River, Zhengzhou 450003. China Key Laboratory of Water Cyde & Related Land Surface Processes Institute of Geographic Science and Natural Resources Research Chinese Academy of Sciences Beijing China Institute of environmental Science Beijing Normal University Beijing China Water Resources Conservation Committee of Yellow River Zhengzhou China

For the purpose of water resources management in the Yellow River Basin with highly spatial difference, a daily distributed hydrological model was proposed, of which the determination of spatially-distributed parameters and model inputs processing were performed by means of GIS/RS. In the model, the computation of runoff yield was based on the topography index method and flow routing was modeled by Maskingum method. The operation of the model is followed by means of “command structure” technique based upon the topography of river network. A case study using the model was conducted for the Jinghe watershed, which locates at the middle Yellow River Basin. The simulation of the hydrological processes in 1996 has shown that water quantity balance errors were less than 5% and the Nash-Sutcliffe coefficient arrived at 0.7, indicating that the model structure is justifiable, and the precision of the model can satisfy the purpose of water resources management.

关键词： distributed hydrological model, structure and equation, GIS and RS, Jinghe Basin, Yellow River Basin.

Numerical study of sea waves created by tropical cyclone Jelawat

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Acta Oceanologica Sinica 2011年第5期30卷 64-70页

作者： LI Jie QIAN Hongbao LI hai LIU Yu GAO Zhiyi Key Laboratory of Research on marine Hazards forecasting National Marine Environment Forecast Center State Oceanic Administration Beijing 100081 China Administrative center for China＇s Agenda 21 Beijing 100038 China

A numerical study of sea waves generated by tropical cyclone Jelawat is carried out using the cycle 4 version of the *** model domain currently covers the latitudes 20-45 N and longitudes 115-13. E,and the model spatial resolution reaches 0.25 ×*** of the model results with buoy observations reveals that the model can fairly reproduce the temporal variation of observed ***-dimensional comparison is also made against the satellite altimeter significant wave heights derived from TOPEX/POSEIDON and ERS-2 data,showing high quality of the model performance.

关键词： wave model tropical cyclone Jelawat simulation altimeter wave height

In vivo and in vitro antiviral activity of hyperoside extracted from Abelmoschus manihot (L) medik

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Acta Pharmacologica Sinica 2007年第3期28卷 404-409页

作者： Lin-lin WU~(2,3. Xin-bo YANG~(3.6) Zheng-ming HUANG~(4,6) He-zhi LIU~5 Guang-xia WU~22 Research center for Eco-environmental Sciences,Chinese Academy of Sciences,beijing 100085,China 3.3.1 Hospital of PLA,beijing 100853.China 4 3.2 Hospital of PLA,beijing 10003.,China 5 Department of General Logistics of PLA,Institute for Drug and Instrument Control of Health,beijing 100071,China Research center for Eco-environmental Sciences Chinese Academy of Sciences Beijing China 3.1 Hospital of PLA Beijing China 3.2 Hospital of PLA Beijing China Department of General Logistics of PLA Institute for Drug and Instrument Control of Health Beijing China

Aim:To assess the anti-hepatitis B virus（HBV）effect of hyperoside extractedfrom Abelmoschus manihot（L）***:The human bepatoma HepG2.2.15 cell culture system and duck hepatitis B virus（DHBV）infection modelwere used as in vivo and in vitro models to evaluate the anti-HBV ***:In the cell model,the 50% toxic concentration of hyperoside was 0.115 g/L;themaximum nontoxic concentration was 0.05 g/L,On the maximum nontoxicconcentrations,the inhibition rates of hyperoside on HBeAg and HBsAg in-the2.2.15 cells were 86.41% and 82.27% on d 8,*** the DHBV infectionmodel,the DHBV-DNA levels decreased significantly in the treatment of ***-1·d-1and 0.10 g·kg-1dosage groups of hyperoside（P3.***:Theseresults suggested that hyperoside is a strong inhibitor of HBsAg and HBeAgsecretion in 2.2.15 cells and DHBV-DNA levels in the HBV-infected duck model.

关键词： hyperoside hepatitis B virus duck hepatitisB virus antiviral agents

A COMPARATIVE STUDY OF 1982-1983.EL NINO EVENT

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海洋学报(英文版) 1986年第4期5卷 517-521页

作者：张启文王绍武 national marine environmental {3. center State Oceanic Administration Beijing China. China

The 1982-1983.El Nino event is examined in comparison with the other El Nino events in 1949-1983. The relationships of subtropical high to the sea surface temperature (SST) show the important influence of the atter, ... 详细信息

关键词： atter maxima equatorial characters subtropical Eastern anomaly migration instead seventy

Vertical dynamic and thermodynamic characteristics of urban lower boundary layer and its relationship with aerosol concentration over beijing

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Science China Earth Sciences 2005年第Z2期48卷 25-37页

作者： ZHOU Mingyu, YAO Wenqing, XU Xiangde & YU Haiqing State Key Laboratory on Severe Weather, Chinese Academy of Meteorological Sciences, beijing 100081, China national marine Environment {3. center, beijing 100081, China national Meteorological center, beijing 100081, China State Key Laboratory on Severe Weather Chinese Academy of Meteorological Sciences Beijing 100081 China national marine Environment forecasting {3. Beijing 100081 China State Key Laboratory on Severe Weather Chinese Academy of Meteorological Sciences Beijing 100081 China national Meteorological center Beijing 100081 China

By utilizing observational data from a 3.5 m tower of the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS) on March 19-29, 2001 and August 11-25, 2003. a comprehensive study was conducted on the vertical dynamical and thermodynamic characteristics of the urban lower boundary layer (ULBL) and its relationship with aerosol concentration over beijing. Firstly, a comparative analysis was made on the gradient data (wind, temperature and humidity), ultrasonic data (atmospheric turbulences) and air-quality observations at different tower heights (47, 120 and 280 m). Secondly, a diagnosis was made to reveal the major features of normalized variances of velocity and temperature, turbulence kinetic energy as well as their relationship with aerosol concentrations. Furthermore, the characteristics of the ULBL vertical structure and the TSP concentration/distribution variations during a sand/dust weather process were also analyzed. The outcome of the study showed that under unstable stratification, the normalized variances of velocity (σu/u*, σv/u*, σw/u*) and temperature (σT/T*) at 47 and 120 m heights fit the Monin-Obukhov similarity (MOS) framework and the fitting formulas were given out accordingly. According to the stratification parameter (z′/L), the stable ULBL could be divided into 2 zones. With z′/L0.1 and the normalized velocity variances tended to increase along with higher stability, but it remained constant for normalized temperature variances. At daytime, the near-surface layer includes two heights of 47 and 120 m, while 280 m has been above it. The ULBL analysis in conjunction with a sand/dust weather process in beijing in March 2001 indicated that the maximum concentration of Total Suspended Particulates (TSP) at 3.0 m reached 913.3.μg/m3.and the particles were transported from the upper to lower ULBL, which was apparently rela

关键词： urban boundary layer, turbulence, aerosol concentration, sand/dust weather.

Characteristics and origins of primary fluids and noble gases in mantle-derived minerals from the Yishu area,Shandong Province,China

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Science China Earth Sciences 2006年第1期49卷 77-87页

作者： MA Jinlong1,2, TAO Mingxin2,3.& YE Xianren2 1. Resources and environmental School, Lanzhou University, Lanzhou 73.000, China 2. Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 73.000, China 3. College of Resources Science & Technology, beijing Normal University, beijing 100875, China Resources and environmental School Lanzhou University Lanzhou China Key Laboratory of Gas Geochemistry Institute of Geology and Geophysics Chinese Academy of Sciences Lanzhou China College of Resources Science & Technology Beijing Normal University Beijing China

Fluids and noble gases of mantle-derived materials are important tracers forthe mantle information. Compositions of primary fluids and noble gases in mantle-derived mineralsfrom the Yishu area, Shandong Province, China, were tested by the methods of heat-bursting andheat-melting respectively. The fluids are mainly composed of CO_2, CO and H_2, which account forabout 90% of the total, and are similar to the mantle-derived rocks from other areas of easternChina; ratios of ~3.e/~4He in almost all samples range from 0.82 Ra to 2.74 Ra, whereas^(40)Ar/^(3.)Ar from 299.5 to 758.8. Both ranges are much lower than those of the typical oceanmantle-derived samples (such as MORB) and primarily reflect the influences of the atmosphericcomponents and the radiogenic isotopes. Ratios of C/~3.e range from 27.6 x 10~9 to 1050 x 10~9,N_2/Ar from 927 to 56612, and N_2/~3.e from 2.5 x 10~9 to 27 x 10~9, similar to those in westernUnited States and New Zealand which belong to the tectonic plate collision regions. The ratios fallin the intersect of mantle-crust-atmosphere in the comprehensive tracer-charts, reflecting theinfluences of the atmosphere and the crusts with organic components. Our results suggest that thecomposition of the primary fluids and the isotopic ratios of the noble gases may either reflect theevolution process of mantle-derived rocks connected with the rise and eruption of magma, or theinfluence of the ancient subduction-plate on the continental mantle of this region.

关键词： noble gases, primary fluids, mantle-derived minerals, Yishu area.

Status of study on biological and toxicological effects of nanoscale materials

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Science China Chemistry 2005年第5期48卷 385-394页

作者： WANG Bing1, FENG Weiyue1, ZHAO Yuliang1, XING Gengmei1, CHAI Zhifang1, WANG Haifang2 & JIA Guang3.1. Laboratory for Bio-environmental Health Sciences of Nanoscale Materials (Nanosafety Lab), Institute of High Energy Physics, Chi-nese Academy of Sciences, beijing 100049, China 2. College of Chemistry and Molecular Engineering, Peking University, beijing 100871, China 3. Department of Occupational and environmental Health Sciences, School of Public Health, Peking University, beijing 100083. China Laboratory for Bio-environmental Health Sciences of Nanoscale Materials (Nanosafety Lab) Institute of High Energy Physics Chinese Academy of Sciences Beijing China College of Chemistry and Molecular Engineering Peking University Beijing China Department of Occupational and environmental Health Sciences School of Public Health Peking University Beijing China

Because the physical and chemical properties of nanosized materials mostly differ from the existing microsized materials, their potential impacts on human health and the envi-ronment will be topics under the serious discussions in press and in a number of international scientific journals. We analyze and summarize the existing data of the experimental study on the biological activities and adverse effects of nanoscale materials/particles including single wall carbon nanotubes, multi wall carbon nanotubes, titanium oxide and iron powders. Though some biological behaviors of nanoscale materials observed cannot be understood on the basis of the current knowledge, as the existing data are mostly preliminary, it is too early to make some ex-clusive conclusions on biological activities (or the toxicity) of any of nanoscale materials. The experimental techniques, the current topics, and the future research directions for this new re-search field are also discussed.

关键词： nanomaterials, single wall carbon nanotubes, multi wall carbon nanotubes, titanium oxide and iron, biological activity and toxicological effect.

INTERANNUAL VARIABILITY OF KUROSHIO CURRENT AND ITS EFFECT ON THE NEARSHORE BRANCH IN JAPAN/EAST SEA

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Journal of Hydrodynamics 2010年第3期22卷 305-311页

作者： ZHENG Pei-nan WU De-xing LIN Xiao-pei LI Xiao-ting Physical Oceanography Laboratory Ocean University of China Qingdao 266100 China marine environmental Ensuring center the Headquarters of General Staff Beijing 100081 China marine environmental Ensuring center the Headquarters of General Staff Beijing 100081 China

Based on the Hybrid Coordinate Ocean Model （HYCOM）, this article presents simulations of the three-dimensional dynamic and thermal structure of the North Pacific Ocean （NPO） in the time domain from January 1991 to December 2000. The baroclinic current field and its interannual variability in Northwest Pacific Ocean （NWPO）, especially, the Kuroshio Current （KC） and the Japan/East Sea （JES） are analyzed and discussed. The results show that the HYCOM covers a complete dynamic and thermo process with adequate representations of the eddy fields and variability in main spatial and temporal scales. The model is used to simulatethe strong interanual variability of the KC, which may affect the strength of the eastern bifurcation of the Tsushima Warm Current （TSWC）, named the Nearshore Branch （NB） in the JES. When the KC is strong and its axis is close to the Japan Island, the TSWC and its bifurcations in the JES would intensify accordingly. Our results confirm once again the hypothesis of Yang et al. that the KC determines the annual mean NB in the JES via the ＂island integral constraint＂. This article further extends this hypothesis to study the KC role in the NB on a time dependent scale.

关键词： KC JES NB HYCOM interannual variability island integral constraint

Research on the multi-level intake water temperature effect of the Yalong River Jinping-I hydropower project

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Science China(Technological Sciences) 2011年第S1期54卷 125-132页

作者： WU ShiYong 1,CAO Wei 1,WANG HongMei 1,SUN ShuangKe 2 &CHEN QiuWen 3.1 Ertan Hydropower Development Company,Ltd.,Chengdu 610051,China 2 China Institute of Water Resources and Hydropower Research,beijing 10003.,China 3.Research center for Eco-environmental Sciences,Chinese Academy of Sciences,beijing 100085,China Ertan Hydropower Development Company Ltd. Chengdu China China Institute of Water Resources and Hydropower Research Beijing China Research center for Eco-environmental Sciences Chinese Academy of Sciences Beijing China

Based on the discussion of the multi-level intake application status of high dam reservoir,this paper takes the Jinping-I hydropower project reservoir in the Yalong River as an example,which is shaped by the highest 3.5 m high arch dam,and carries out the forecasting research on the reservoir temperature by numerical simulation and physical model *** paper studies the intake effect of withdrawing the surface warm water by the stoplog gates inlets and verifies the reliability of the mathematical model by comparative *** results show that for a high dam hydropower station,taking the appropriate multi-level intake measure can withdraw the surface warm water in the spawning season and provide a favorable environment for the fish *** technical ideas and implementation scheme are adopted in this *** can provide technical reference for the solutions of similar problems in the future and it also has important engineering significance on the research of water temperature in large deep reservoirs.

关键词： water temperature multi-level intake Jinping-I hydropower project