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Modeling of Dust Flux to Oceans from Asian Continent

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Modeling of Dust Flux to Oceans from Asian Continent

东北全新世乔木种类演化的区域差异及其迁移问题(英文)

第三届中日韩气象学术会议

作者： Shen Yanbo~(1,2. Shi Guangyu~2.(1.Laboratory for climate Studies,National climate {2.,{2. for Wind and Solar Energy Resources Assessment,China Meteorological Administration,Beijing,100081 2.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG),Institute of Atmospheric Physics,Chinese Academy Sciences,Beijing,10002.)

＜正＞Plenty of dust aerosols are blown into atmosphere during the frequent Asian dust *** aerosols have not only direct and indirect climate effects through radiative processes,but also have important influences on the oceanic environment. As dust aerosols carrying nutriments like Fe fall into ocean,they will facilitate oceanic primary *** change in oceanic primary productivities will then cause the change in the flux ofradiatively active gases between ocean and atmosphere and result in the climate change *** the studying of these profound items, estimation of dust flux into oceans is an important *** this report,two schemes and relative observation data are combined to study the dust deposition flux and amount into seas near China from Asian continent during the spring of 2.06.

关键词： Dust aerosol Chinese Seas Deposition Flux Numerical simulation Aerosol Optical Depth

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微体古生物学报 2000年第2期17卷 155-163页

作者：任国玉中国气象局国家气候中心北京100081

根据花粉等时线图和代表性剖面花粉资料 ,总结了东北全新世主要乔木种类出现和发展的地区差异。三江平原和小兴安岭地区的栎属与松属的出现和发展分别比长白山地区推迟 1— 2.多年。这个时间上的差别说明它们可能有从南向北的迁移过程... 详细信息

根据花粉等时线图和代表性剖面花粉资料 ,总结了东北全新世主要乔木种类出现和发展的地区差异。三江平原和小兴安岭地区的栎属与松属的出现和发展分别比长白山地区推迟 1— 2.多年。这个时间上的差别说明它们可能有从南向北的迁移过程。不同乔木种类迁移的速率也不一样。初步估计的几种乔木迁移速率为 :栎属 2.50— 590 m/ a,松属 1 50— 580 m/ a,胡桃属2.0 0— 81 0 m/ a。这种差异可能主要与种子大小、河流和地形等因素有联系。

关键词：森林演化物种迁移全新世乔木区域差异

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Analyzing Precipitation Characters of South and North China Based on the Exponent of Scaling Law

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Analyzing Precipitation Characters of South and North China ...

A Fuzzy Logic-Based Framework for Route Choice in Vehicle Navigation Systems

中国数学力学物理学高新技术交叉研究会第11届学术研讨会

作者： Gong Zhi-qiang~1 Feng Guo-lin~2.Zhi Rong~2.Zhang Da-quan~2.1.Department of Physics Yangzhou University,Yangzhou 2.5009,China 2.Laboratory for climate Studies,National climate {2.,China Meteorological Administration,Beijing 100081,China

＜正＞In light of the recent research achievements of nonlinear science and in the context of the daily precipitation data from 1956 to 2.00 at 2. stations in south and north China compiled by the National climate {2.,we calculated the exponents of power-law tail（EPT）on the cumulative distribution of probability of finding segment with lengths larger than l for each station’s precipitation time series based on BG algorithm, try to analyze the characters of precipitation both in south and north China from a new *** results show that power-law decay（scaling law）of the distribution of the stationary period may be a common occurrence for precipitation and other nonstationary time series;The distribution of EPT for precipitation might be different from area to area,and north China（NC）is comparing lager than south China（SC）;Meanwhile,The exponents of power-law tail（EPTs）might be another effective way to study the abrupt changes contained in nonlinear and nonstationary time series.

关键词： precipitation the exponent of power-law tail abrupt precipitation change grade

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Systems Science and Systems Engineering 2000年第4期10卷 467-474页

作者： YANG Qun,\ ZHAO Ya\|nanITS research center, Northern Jiaotong University, Beijing 100044, China

Vehicle Navigation Systems (VNS) is an important component of Intelligent Transportation Systems (ITS). These Systems are designed to assist drivers in making pre trip and enroute travel choice decisions, and typically, they must provide route choice, route guidance and other related services. Although there have been a lot of existed systems in the market, and most of them used lots of contemporary technologies, they are believed short of ″true intelligence″, because they paid little attention to the subjective issues in driver′s route choice behavior, such as travel objectives and personal preferences, etc. \;However, the VNS is designed for its users, and the successful implementation of VNS is largely dependent on the driver′s acceptance. If the driver feels that the VNS can′t give him (her) a satisfactory choice, he (she) will not use it, then, the marketing value of VNS will decline. And on the whole, the transport benefit that is mainly gained by the wide use of ITS will lost. \;Supported by the research project of ″Beijing Intelligent Urban Transportation Systems″, this paper presents a conceptual model to deal with this problem. We first defined the driver′s objective as a linguistic statement that has a set of attributes. These attributes are then treated as the fuzzy sets on the universal of all the existed routes. By determining each attribute′s membership function and assign driver dependent perception to these attributes, we can change the multi criteria route choice problem into a fuzzy logic based decision making problem. Then, to meet the demands of dynamic real time route selection, we use a limited routes set for choice and can swiftly get a satisfactory solution that we think is the driver′s actually needs.

关键词： vehicle navigation systems intelligent transportation systems fuzzy logic

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Global comparisons of beta diversity among mammals,birds,reptiles,and amphibians across spatial scales and taxonomic ranks

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Journal of Systematics and Evolution 2009年第5期47卷 509-514页

作者： Hong QIAN(research and Collections center,Illinois State Museum,Springfield,IL 62.03,USA) (research and Collections center Illinois State Museum Springfield IL 62703 USA)

Beta diversity is the change in species composition among areas in a geographic *** proportion of species shared between two areas often decreases when the distance separating them increases,leading to an increase in beta *** study compares beta diversity among four classes of terrestrial vertebrates(mammals,birds,reptiles,and amphibians) at both regional(biogeographic realm) and global extents,using the same sets of faunal sample units for all four groups in each *** diversity is lower for the two endothermic taxa(birds and mammals) than for the two ectothermic taxa(reptiles and amphibians) in all six biogeographic realms *** the four taxa in the six biogeographic realms are combined,beta diversity at the species rank is higher than that of the genus rank by a factor of 1.2.,and is higher than that of the family rank by a factor of *** ratio of beta diversity at the genus rank to that at the family rank is *** diversity is slightly higher for ecoregions of 5000-99,999 km2.than for ecoregions of 100,000-5,000,000 km2.

关键词： β-diversity dispersal limitation Jaccard index species turnover terrestrial vertebrates.

Determination of cell volume during equilibrium freezing process

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Science Bulletin 2003年第15期48卷 1551-1554页

作者： ZHAO Gang1, HE Liqun1, WANG Peitao2. DING Weiping1, XIE Xiaojian1, LIU Zhong3, ZHANG Haifeng1, SHU Zhiquan1, LUO Dawei1 & GAO Dayong1,4 1. Cryobiomedical Engineering research Institute, Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 2.002., China 2. School of Life Sciences, University of Science and Technology of China, Hefei 2.002., China 3. Red Cross and Blood center of Hefei, Hefei 2.002., China 4. Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506-0108, USA Correspondence should be addressed to Zhao Gang (e-mail: cooky@ ***) Cryobiomedical Engineering research Institute Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230027 China School of Life Sciences University of Science and Technology of China Hefei 230027 China Red Cross and Blood center of Hefei Hefei 230022 China Department of Mechanical Engineering University of Kentucky Lexington KY 40506-0108 United States

A new type electronic particle counter (EPC, MultisizerTM 3, Beckman Coulter Inc., USA) was used to determine the volumes of human red blood cells (RBCs) in NaCl solutions of different osmolalities. The thermodynamics model describing cell response during freezing process was used to simulate the volume change of RBC in 0.9% NaCl solution during equilibrium freezing process. It was assumed that the effect of temperature on cell volume can be neglected compared to that of osmolality, then by using the phase diagram for the binary system sodium chloride/water, the osmolalities of the NaCl solution under different sub-zero temperatures can be obtained (converted from mass concentration), then the calculated values of RBC volumes can be validated by the experiments.

关键词： EPC osmolality RBC Van抰 Hoff cell volume.

Highly sensitive and selective chemosensor for Cu～(2.) detection based on a N-propargyl rhodamine 6G-hydrazide derivative

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Science China Chemistry 2012年第4期55卷 626-631页

作者： MA Xing1,2.LIU Jun1,DU YuGuo1,2.WEI GuoHua1 & WEI DongBin1 1State Key Laboratory of Environmental Chemistry and Ecotoxicology research center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China 2.ollege of Chemistry and Chemical Engineering,Graduate University of Chinese Academy of Sciences,Beijing 100049,China 1. State Key Laboratory of Environmental Chemistry and Ecotoxicology research center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China2. College of Chemistry and Chemical Engineering Graduate University of Chinese Academy of Sciences Beijing 100049 China

A novel fluorescence ＂turnon＂ probe for CH^2. detection has been designed based on a Cu^2. triggered spirolactam ringopening reaction. The synthetic probe is a doubleresponsive fluorescent and colorimetric Cu^2.specific sensor. In aqueous solution, it exhibits high selectivity and excellent sensitivity. With a significant color change visible to the naked eye at the concentration of 3 *** （ca. 0.19 mg/L）, about one magnitude lower than the WHO （World Health Organization） recommended level （2.0 mg/L） for Cu^2.ions in drinking water, the probe could be used to monitor Cu^2. ions in drinking water.

关键词： copper – fluorescent chemosensor – chromogenic probe – rhodamine

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Rainfall spectrum change in North China and its possible mechanism

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Progress in Natural Science:Materials International 2004年第7期 46-52页

作者： DAI Xingang 1,2.*, WANG Ping 3, ZHANG Peiqun 4 and CHOU Jifan 1(1. College of Resources and Environmental Sciences, Lanzhou University, Lanzhou 730000, China 2. State Key Laboratory LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 10002., China 3. College of Physics, Peking University, Beijing 100871, China 4. National climate center, Beijing 100081, China) College of Resources and Environmental Sciences，Lanzhou University，Lanzhou 730000，China State Key Laboratory LASG，Institute of Atmospheric Physics，Chinese Academy of Sciences，Beijing 10002.，China College of Physics，Peking University，Beijing 100871，China National climate center，Beijing 100081，China College of Resources and Environmental Sciences，Lanzhou University，Lanzhou 730000，China

The seasonal distribution of the rainfall in North China has changed greatly since 1977, with more rainfall in spring and less in July, August, and September (JAS). Wavelet analysis showed that the JAS rainfall underwent an abrupt spectrum change in the mid-1960s. Its interannual variability has declined while the interdecadal component has become the dominant mode, associated with the dry {2.. Correlation analysis found that the JAS rainfall is negatively correlated with the departures of the 500 hPa geopotential height significantly over the northwest and southwest of China, and positively correlated with the summer monsoon over eastern China. Therefore, the interdecadal ascending of the air pressure in northwestern China and the monsoon decaying over East Asia in the past 2. years may be the two major causes of North China drought.

关键词： North China drought wavelet spectrum abruption monsoon geopotential height interdecadal change.

Carbon and Oxygen Stable Isotope Values and Microfossils at 41.4-4.5ka BP in Tai Co,Tibet,China,and Their Paleoclimatic Significance

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Acta Geologica Sinica(English Edition) 2011年第5期85卷 1036-1050+1052-1056+1051页

作者： ZHENG Mianping~(1,2.*),LIU Junying~(1,3),MA Zhibang~(1,4),WANG Hailei~(1,2. and MA Nina~(1,2. 1 MLR Key Laboratory of Saline Lake Resources and Environment,Institute of Mineral Resources,CAGS, Beijing 100037,China 2.research and Development center for Saline Lakes and Epithermal Deposits,Chinese Academy of Geological Sciences,Beijing 100037,China 3 Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China 4 Key Laboratory of Cenozoic Geology and Environment,Chinese Academy of Sciences,Beijing 10002., China MLR Key Laboratory of Saline Lake Resources and Environment Institute of Mineral Resources CAGS Beijing 100037 China research and Development center for Saline Lakes and Epithermal Deposits Chinese Academy of Geological Sciences Beijing 100037 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Key Laboratory of Cenozoic Geology and Environment Chinese Academy of Sciences Beijing 100029 China *Correspondence: Mianping ZHENG *Correspondence: Corresponding author. E-mail: zhengmp2010@***

Two sedimentary sections were measured at Tai Co(Co means lake in Tibetan) in western Tibet,*** two sections are almost all composed of clay carbonate beds except in their lower parts where there are carbonized plants at>10 cm depths and dark-colored carbonate clay and clay at 50-70 cm depths,yielding abundant gastropods,ostracods,and *** carbon and oxygen stable isotope values of carbonate,ostracods,and charophytes and ecological features of microfossil communities indicate the following climatic change in the area from 41.4 to 4.5 ka BP:at 41.4-2..2.ka BP,the climate was relatively wet;at 2..2.2..5 ka BP,it was slightly warm-dry;at 2..5-2..5 ka BP,it was warm-wet;at 2..5-2..0 ka BP,it was slightly cold-wet;at 2..5-17.5 ka BP,it became cold abruptly and slightly wet,implying the climate of the last glacial maximum;at 17.5-16.0 ka BP,it was slightly cold-dry;at 16.0-11.8 ka BP,it was slightly warm-wet;at 11.8-10.4 ka BP,it was relatively cold-dry, roughly equivalent to the climate of the Younger Dryas,and at 10.4 ka BP,the temperatures began to rise again;at 10.4-9.4 ka BP,it was slightly warm-wet;at 9.4-8.5 ka BP,there occurred short warm-wet oscillations;at 8.5-7.9 ka BP,it was slightly dry-cold,representing a strong temperature-lowering and drying event in the postglacial stage;at 7.8-6.3 ka BP,it was slightly warm-wet;at 6.3-4.5 ka BP,the climate tended to be cold-dry.4.5 ka BP recorded the maximum aridity since the late part of the late Pleistocene.

关键词： sedimentary environment index paleoclimatic changes late Pleistocene-Holocene(41.4-4.5 ka BP) Tai Co Tibet