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The effect of wave-induced radiation stress on storm surge during Typhoon Saomai(2006)

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Acta Oceanologica Sinica 2011年第3期30卷 20-26页

作者： FENG Xingru YIN Baoshu YANG Dezhou WILLIAM Perrie Institute of Oceanology China Academy of Sciences Qingdao 266071 China graduate school Chinese Academy of Sciences Beijing 100049 China Key Laboratory of Ocean Circulation and Wave Chinese Academy of Sciences Qingdao 266071 China Fisheries and Oceans Canada Bedford Institute of Oceanography Dartmouth Nova Scotia Canada

The effects of wave-induced radiation stress on storm surge were simulated during Typhoon Saomai using a wave-current coupled model based on ROMS （Regional Ocean Modeling System） ocean model and SWAN （Simulating Waves Nearshore） wave model. The results show that radiation stress can cause both set-up and set-down in the storm surge. Wave-induced set-up near the coast can be explained by decreasing significant wave heights as the waves propagate shoreward in an approximately uniform direction; wave-induced set-down far from the coast can be explained by the waves propagating in an approximately uniform direction with increasing significant wave heights. The shoreward radiation stress is the essential reason for the wave-induced set-up along the coast. The occurrence of set-down can be also explained by the divergence of the radiation stress. The maximum wave-induced set-up occurs on the right side of the Typhoon path, whereas the maximum wave induced set-down occurs on the left side.

关键词： radiation stress storm surge wave-current interactions Typhoon Saomai

A Simple X-ray Spectrometer and PC-based Data Acquisition System for Newly Developed X-ray Source Based on Laser Compton Scattering

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原子核物理评论 2009年第S1期26卷 115-118页

作者： LUO Wen1,2,XU Wang1,,PAN Qiang-yan1,XU Yi1,2,FAN Gong-tao1,2,FAN Guang-wei1,2,YANG Li-feng 1,2,LI Yong-jiang1,2,YAN Zhe1,XU Ben-ji1(1 Shanghai Institute of Applied Physics,chinese academy of sciences,Shanghai 201800,china 2 graduate school of chinese academy of sciences,beijing 100049,china) Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China graduate school of chinese academy of sciences Beijing 100049China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China graduate school of chinese academy of sciences Beijing 100049China

A simple X-ray spectrometer and a PC-Based Data Acquisition System(DAS) have been developed newly in Shanghai Institute of Applied Physics(SINAP),chinese academy of sciences(CAS) for the measurement of the X-ray source generated using laser Compton scattering. The system consists of liquid nitrogen cooled high resolution Si(Li) detector,electronics and a DAQ. The Si(Li) detector was designed and made by Center of Advanced Instruments in SINAP,CAS,it allows us to measure X-rays with the energy up to 60 keV and the energy resolution(FWHM) of 184 eV at 5.9 keV. We measured the system uncertainty was 0.2 eV and time drifting of detector was 0.05% both at 5.9 keV. The DAQ was based on Object-Oriented software LabVIEW 7.1,it has data on-line analysis and original data saved functions.

关键词： laser Compton scattering Si(Li) detector energy resolustion

Improvement of the SLP simulation in the coupled AGCM-ocean surface wave model

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chinese Science Bulletin 2005年第20期50卷 2397-2400页

作者： YU Weidong1, 2, 3, LI Zhaoxin4 & YUAN Yeli3 1. Institute of Oceanology, chinese academy of sciences, Qingdao 266071, china 2. graduate school of chinese academy of sciences, beijing 100049, china 3. Laboratory of Marine Science and Numerical Modeling, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, china 4. LMD/CNRS, Univ. Paris 6, Paris, France Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China graduate school of chinese academy of sciences Beijing 100049 China Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography State Oceanic Administration Qingdao 266061 China LMD/CNRS Univ. Paris 6 Paris France

The coupled atmosphere-ocean general circulation models (CGCM) are now becoming the indispensable tools for the climate study. However, most models still suffer from unrealistic simulations. One problem is the troublesome climate drift. It may come from some unresolved aspects. One possibility is the poor air-sea surface flux description now adopted in CGCM. The commonly used solution for this problem is the so-called flux correction[1].

关键词：大气海洋循环模式气象学 SLP模拟

Nematode Faunal Response to Grassland Degradation in Horqin Sandy Land

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Pedosphere 2007年第5期17卷 611-618页

作者： LIANG Wen-Ju ZHONG Shuang HUA Jian-Feng CAO Cheng-You JIANG Yong Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 （China） College of sciences Northeastern University Shenyang 110004 （China） graduate school of the chinese academy of sciences Beijing 100049 （China）

The responses of soil nematode communities to grassland degradation were studied under undegraded grassland (UG), degraded grassland (DG),and improved grassland (IG),in Horqin Sandy Land,Inner Mongolia,Northeast *** samples were collected at depths of 0-10,10-20,and 20-30 *** organic carbon (TOC) and total nitrogen (TN) exhibited positive effects on the total number of nematodes and trophic *** treatment effects were found in the total number of nematodes,plant parasites,and *** taken in the improved grassland could improve the number of omnivore-predators,especially in the deeper soil *** richness was lower in the DG treatment than in the IG and UG *** food web structure index (SI) was significantly higher in the UG and IG treatments than in the DG treatment.A higher SI suggested a food web with more trophic linkages and relatively healthy ecosystems.

关键词： functional groups grassland degradation Horqin Sandy Land soil nematodes

Greenhouse Gas Emissions from Northeast china Rice Fields in Fallow Season

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Pedosphere 2007年第5期17卷 630-638页

作者： LIANG Wei SHI Yi ZHANG Hua YUE Jin HUANG Guo-Hong Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 （China） graduate school of the chinese academy of sciences Beijing 10005g （China） College of Resources and Environment Huazhong Agricultural University Wuhan 430070 （China）

CH4, N2O and CO2 emissions from northeast chinese rice fields were measured in the fallow season （November to March） to investigate the effects of freezing-thawing on the emissions. Both CH4 emission from and atmospheric CH4 oxidation by the soil occurred, but the flux was small. During the fallow season, rice fields acted as a minor source of atmospheric CH4, which accounted for about 1% of the CH4 emission during the rice growing period. The field was also a substantial source of atmospheric N20, which ranged between 40 to 77 mg m-2 and eu=counted for 40%-50% of the annual N20 emission. The largest N20 flux was observed in the thawing period during the fallow season. Laboratory incubation tests showed that the largest N20 flux came from the release of N20 trapped in frozen soil. Tillage and rice straw application （either mulched on the soil surface or incorporated in the soil） stimulated the CH4 and CO2 emissions during the fallow season, but only straw application stimulated N2O emission substantially.

关键词： CH4 CO2 freezing-thawing N2O rice field

Expansion of ürümqi urban area and its spatial differentiation

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Science china Earth sciences 2007年第S1期 159-168页

作者： DONG Wen1,2, ZHANG XiaoLei1, WANG Bin1,2 & DUAN ZuLiang1,2 1 Xinjiang Institute of Ecology and Geography, chinese academy of sciences, ürümqi 830011, china 2 graduate school of chinese academy of sciences, beijing 100049, china

The expanded area and structure of urban lands and landscape features in ürümqi City are analyzed using RS and GIS means based on the MSS image in 1975 and the TM images in 1990, 1999 and 2002, as well as other related maps. On which the scale, intensity and spatial differentiation of the expansion of the ürümqi urban area during different periods are lucubrated. The results reveal that urban expansion was rapid during the periods of 1949―1965 and 1975―1990, and that it was stable after the 1990s. The urban expansion pattern was significantly different during different time periods: the urban area was expanded outwards based on old districts in a spanned development pattern during the period of 1949―1965; development was stagnant during the period of 1965―1975; urban expansion developed mainly in old districts in a grouped way during the period of 1975―1990. The trend of urban expansion along the traffic lines was obvious, and the direction of urban expansion was dominated by the south-north zonal expansion and supplemented by east-west axial expansion; urban expansion reached the development stage of "multiple centers and multiple districts" after the 1990s, and urban networks were developed more precisely after this time. The sources for urban expansion were mainly cultivated lands, grasslands and unused lands; during urban expansion, the land area devoted to traffic lines, residential areas, dispersive industrial and mineral areas, and garden plots was rapidly enlarged.

关键词： RS & GIS urban land spatial differentiation expansion intensity and pattern

Temperature dependent kinetics of the gas-phase reaction of OH radicals with EMS

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Science Bulletin 2011年第Z1期 391-396页

作者： WANG Kun1,2,GE MaoFa1 & WANG WeiGang1 1beijing National Laboratory for Molecular sciences(BNLMS) ,State Key Laboratory for Structural Chemistry of Unstable and Stable Species,Institute of Chemistry,chinese academy of sciences,beijing 100190,china 2graduate school of chinese academy of sciences,beijing 100049,china

Using an improved smog chamber system,the temperature dependence of OH radical reaction with EMS was investigated over the temperature range of 297-346 K at 1.01×105 Pa pressure of air. The Arrhenius expression of th... 详细信息

关键词： smog chamber temperature dependence OH radicals mechanism sulfide

Influence of Fly Ash and Silica Fume on Water-resistant Property of Magnesium Oxychloride Cement

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Journal of Wuhan University of Technology(Materials Science) 2010年第4期25卷 721-724页

作者：李成栋于红发 Qinghai Institute of Salt Lakes Chinese Academy of Sciences graduate school of chinese academy of sciences Nanjing University of Aeronautics and Astronautics Department of Civil Engineering

By incorporation of fly ash or silica fume into magnesium oxychloride （MOC） cement, a high water resistance material can be formed for successful industrial applications. The influences of fly ash and silica fume on water-resistant property were investigated by SEM and EDS. It is found that the incorporation of fly ash or silica fume can improve the water-resistance of the MOC. The improvement of the water resistance of the MOC incorporated with fly ash or silica fume may be attributed to the alumino-silicate 5·1·8 gel or silicate 5·1·8 gel.

关键词： magnesium oxychloride cement fly ash silica fume water resistance

Colony development and physiological characterization of the edible blue-green alga,Nostoc sphaeroides (Nostocaceae,Cyanophyta)

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Progress in Natural Science:Materials International 2008年第12期18卷 1475-1483页

作者： Zhongyang Deng~(a,c,d,e) Qiang Hu~b Fan Lu~c Guoxiang Liu~a Zhengyu Hu~a a State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,chinese academy of sciences,Wuhan 430072,china b Department of Applied Biological sciences.Arizona State University,Polytech Campus,ISTBⅢ,Mesa,AZ 85212,USA c Algaen Corporation,925 West Northwest Boulevard,Winston Salem,NC 27101.USA d Department of Biology,Hubei Normal University,Huangshi 435002,china e graduate school of the chinese academy of sciences.beijing 100049,china State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China Algaen Corporation 925 West Northwest Boulevard Winston Salem NC 27101 USA Department of Biology Hubei Normal University Huangshi 435002 China graduate school of the chinese academy of sciences Beijing 100049 China Department of Applied Biological sciences Arizona State University Polytech Campus ISTB III Mesa AZ 85212 USA

The edible blue-green alga,Nostoc sphaeroides K(?)tzing,is able to form microcolonies and spherical *** has been used as a potent herbal medicine and dietary supplement for centuries because of its nutraceutical and pharmacological ***,lim- ited information is available on the development of the spherical macrocolonies and the environmental factors that affect their structure. This report described the morphogenesis of *** from single trichomes to *** the process,most structural features of macrocolonies of various sizes were dense maculas,rings,the compact core and the formation of liquid core;and the filaments within the macrocolonies showed different lengths and arrays depending on the sizes of *** temperature and light intensity also strongly affected the internal structure of *** microcolonies further increased in size to form 30 mm mac- rocolonies,the colonies differentiated into distinct outer,middle and inner *** filaments of the outer layer showed higher max- imum photosynthetic rates,higher light saturation point,and higher photosynthetic efficiency than those of the inner layer;whereas the filaments of the inner layer had a higher content of chlorophyll a and phycobiliproteins than those of the outer *** results obtained in this study were important for the mass cultivation of *** as a nutraceutical product.

关键词： Macrocolony Morphogenesis Nostoc sphaeroides Photosynthesis