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macrobenthos monitoring in the Gulf of Suez,Egypt

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Acta Oceanologica Sinica 2008年第2期27卷 55-80页

作者： mohamed m.El-Komi National Institute of Oceanography and Fisheries

The biogeography of macrobenthic communities with large-scale differences in species distribution and abundance was studied along the eastern and western coastal regions of the Gulf of Suez to indicate biodiversity of benthos in relation to the prevailing environmental conditions. In general, benthos have a wide variety of species of mainly polychaet worms, crustaceans, bivalves, and other bottom invertebrates living in burrows in/or on the sediment surface. Coastal development clearly affects the ecosystem after the construction of coastal projects. The highest values of benthic diversity, evenness, richness and dominance are found at the Gulf of Suez （WG 1, WG 3）, Ras Gharib （WG 7, WG 8） and Ras Shukier （WG 9a） by contrast to others. The abundance of macrobenthic organsims along the coasts of Gulf of Suez can be arranged in the following sequence： other groups （34%） greater than crustaceans （25%） greater than polychaetes （22%） greater than molluscs （17%） greater than echinoderms （2%）. The biomass of benthic assemblages at different sampling sites can also be ranked as follows： echinoderms （52%） greater than molluscs （27%） greater than crustaceans （16%） greater than polychaetes （2%） greater than other groups （3%）. Some benthic groups or species indicated a distinctive correlation to pollution sources in the marine ecosystem which obviously increased in the coastal areas due to the extension of the coastal development. These activities needed regular information to establish database for the biology and distribution of marine benthic communities. The density and diversity of benthos are significantly affected by eutrophication at Ain Sukhna, whereas the benthos in the open Gulf of Suez do not seem to be adversely affected by pollution.

关键词： macrobenthos assessment impact Gulf of Suez

Thermodynamic Equilibrium Diagrams of Sulphur-Chromium System

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Rare metals 2001年第4期20卷 236-239页

作者： Ailing Du1, Heming Zhang1, m. Pourbaix 2 1) Department of Chemistry and Chemical Engineering, Shangdong University, Jinan 250061, China 2) Belgian Centre for Corrosion Study CEBELORC, Brussels, Belgium Shandong Univ Dept Chem & Chem Engn Jinan 250061 Peoples R China CEBELORC Belgian Ctr Corros Study Brussels Belgium

The chemical and electrochemical equilibria in the presence of gaseous phase were investigated. many substances, which consisted of sulphur and chromium, were considered. Various thermodynamic equilibria were calculated in different pressures. Calculation results were shown as log p-1/T and E-T diagrams. These diagrams may be used to study the corrosion of chromium in sulphur-containing circumstances. The diagrams are also used to thermodynamically determine the existence area of various substances and so on.

关键词： thermodynamic equilibrium sulphur chromium

Origin and geochemistry of Pan-African granitoid rocks in the Gabal Um Shomer area,Southwestern Sinai,Egypt

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Chinese Journal Of Geochemistry 2009年第2期28卷 125-135页

作者： E1-Tokhi m.m. musallum A. Amin B.m. Geology Department College of ScienceUnited Arab Emirates UniversityUnited Arab Emirates

Geological, petrological and geochemical studies indicated that there are two distinct types of granitoid rocks: older quartz diorites to granodiorite assemblage and younger granitoids, the latter occurring in two phases. The older granitoids have a meta-aluminous chemistry and a calc-alkaline character, with high mgO, Fe2O3, TiO2, CaO, P2O5, Sr and low SiO2, K2O, and Rb. Their major and trace elements data, together with low 87Sr/ 86Sr ratios (0.7029±0.0008) are indicative of I-type affinities. The second- and third-phase granitoids range from calc-alkaline to alkaline, respectively. The second-phase granitoids have a peraluminous chemistry and high Sr, Ba, CaO, mgO, Al2O3 and Ti2O and low SiO2, K2O, Nb, Y and Rb relative to the third-phase granitoids. The corundum normative nature and field observations suggested that it was formed by partial melting of the lower crust. The third-phase granitoids are alkaline in nature and characterized by higher SiO2, Rb, Y, Nb and lower mgO, Sr and Ba values than the younger granitoids (phase Ⅱ). They are A-type granitoids which were generated from below or within the existing continental crust.

关键词：花岗岩类岩石地球化学西奈半岛过铝质花岗岩起源西南埃及石英闪长岩

R & D OF HYDROGEN ABSORBING ALLOYS IN JAPAN

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Acta metallurgica Sinica(English Letters) 1997年第3期10卷 249-255页

作者： K. mii (Sumitomo metal Industries, Ltd., 1-t-3 Otemachi, Tokyo 100, Japan)m Amano (National Research Institute for metals, 1-2-1 Sengen, Tsukuba 305, Japan) Sumitomo metal Industries Ltd Otemachi Japan

The R & D of hydrogen absorbing alloys in Japan started in the early *** alloys such as Timm1.5 based alloys, Fe-Ti-O alloys (e.g. FeTi1.15 O0.024) andthe(mischmetal)Ni5 based alloys (e.g. mmNi4.5 Cr0.46 mn0.04) were developed by the early 1980s. The application of these alloys to hydrogen storage, heat storage, heat pump, hydrogen purification and motor vehicles has been tried in many iaboratories,and the various techniques for using hydrogen absorbing alloys have been *** standarkization of evaluation methods for hydrogen absorbing alloys has been promoted by the ministry of International Trade and Industry (mITI), and four of them were established as Japanese Industrial Standard (JIS).Alloys for Ni-metal Hydride batteries have been extensively investigated since 1987in Japun. mm-Ni-Co-Al-mn alloys (e.g. mmNi3.55 Co0.75Al0.9mn0.4) have been devel-oped and commereialized since 1990. The amount of production of small-size Ni-mH batteries in 1995 was about three hundred milliion in number and about one hundred billion yen. The R & D for higher enerpy-density Ni-mH batteries is intensively in *** and STA (Science and Technology Agency) have promoted the R & D of hydro-gen absorbing alloys in Japan by carrying out the national projects such as Sunshine Program (mITI: 1974-1993) and Utilization of Wind Engeray (STA 1980-1985). The New Sunshine Program (mITI 1993-2020) have started in 1993. This program con-tains the application of hydrogen absorbing alloys to Economical- Enerpy- City System and to We-NET (International Clean Energy System of Technology Utilizing Hydro-gen: World Energy Network.

关键词： hydrogen absorbing alloy alloying element Ni-mH battery capacity

The global image of the moon obtained by the Chang'E-1:Data processing and lunar cartography

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Science China Earth Sciences 2010年第8期53卷 1091-1102页

作者： LI ChunLai1, LIU JianJun1, REN Xin1, mOU LingLi1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang2, YANG JianFeng2, ZOU XiaoDuan1, WANG min1, XU Chun1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, LI JunDuo1 & OUYANG ZiYuan11 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Xi’an Institute of Optics and Precision mechanics, Chinese Academy of Sciences, Xi’an 710119, China 1. National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China2. Xi’an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi’an 710119 China

The global lunar image of the first phase of Chinese Lunar Exploration Program is the first image that covered all over the surface of the moon. It will serve as a critical foundation for succeeding exploration and scientific research. In this paper, the acquisition, characteristics, and data quality of Chang'E-1 CCD image data are described in detail. Also described are the methodology and procedure of data processing. According to rule of planetary cartography, the image data have been processed, geometrically corrected, and then mosaicked and merged in a scale of 1:2.5 million. The results of data processing and charting show that the image data of Chang'E-1 CCD and their geometric precision meet the demand of charting a map in the scale of 1:2.5 million. The relative geometric positioning precision of the global image is better than 240 m, and the absolute geometric positioning precision is slightly better than that of the ULCN2005 and Clementine lunar basemap (V2.0). The plane positioning precision is approximately 100-1500 m. This global image proves to be the best global image of the moon so far in terms of space coverage, image quality, and positioning precision.

关键词： Chang’E-1 lunar CCD data processing lunar image position lunar global image

Study on Transonic Tone in an Axisymmetric Supersonic Nozzle

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Journal of Thermal Science 2010年第5期19卷 397-401页

作者： m.Yonamine S.Jung T.Aoki Graduate School of Engineering Sciences Kyushu University

This paper describes experimental and numerical works to investigate noise phenomenon in supersonic flow discharged from a convergent-divergent *** noise phenomenon of flow is generated by an emission of 'transonic tones'.The results obtained show that the frequency of a transonic tone,that differs from the frequency of a screech tone due to the shock-cell structures in a jet and originates in the shock wave in the nozzle,increases in proportion to the nozzle pressure *** high-order transonic tone has the directivity in the direction of the *** for the transonic tone's frequency,the separated zone was calculated by using a simple flow model considering the propagating *** results of the model corresponded to the results of this experiment well.

关键词： Compressible Flow Noise Supersonic Flow Shock Wave and Transonic Resonance

mB_8^(2-) (m=Be,mg,Ca,Sr,and Ba):Planar octacoordinate alkaline earth metal atoms enclosed by boron rings

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Science China Chemistry 2010年第8期53卷 1737-1745,1829-1832页

作者： PU ZhiFeng1,GE maoFa1 & LI QianShu2 1State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for molecular Sciences (BNLmS) Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China 2Center for Computational Quantum Chemistry,South China Normal University,Guangzhou 510631,China 1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for molecular Sciences (BNLmS) Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China2. Center for Computational Quantum Chemistry South China Normal University Guangzhou 510631 China

Complexes involving planar octacoordinate alkaline earth metal atoms in the centers of eight-membered boron rings have been investigated by two density functional theory (DFT) ***82-with D8h symmetry is predicted to be stable,both geometrically and electronically,since a good match is achieved between the size of the central beryllium atom and the eight-membered boron *** contrast,the other alkaline earth metal atoms cannot be stabilized in the center of a planar eight-membered boron ring because of their large *** following the out-of-plane imaginary vibrational frequency,pyramidal C8v mgB82-,CaB82-,SrB82-,and BaB82-structures are *** presence of delocalized π and σ valence molecular orbitals in D8h BeB82-gives rise to aromaticity,which is reflected by the value of the nucleus-independent chemical *** D8h BeB82-structure is confirmed to be the global minimum on the potential energy surface.

关键词： density functional theory octacoordinate alkaline earth metal aromatic molecular orbital

model calculating annual mean atmospheric dispersion factor for coastal site of nuclear power plant

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Journal of Environmental Sciences 2001年第3期13卷 280-290页

作者： HU Er bang 1, CHEN Jia yi 2, YAO Ren tai 1, ZHANG mao shuan 1, GAO Zhan rong 1, WANG Shu xian 1, JIA Pei rong 3, Liao Qi lin 4(1 China Institute for Radiation Protection, Taiyuan 030006,China. 2 Beijing University, Beijing\ 100871 China Institute for Radiation Protection Taiyuan 030006 China.

This paper describes an atmospheric dispersion field experiment performed on the coastal site of nuclear power plant in the east part of China during 1995 to 1996. The three-dimension joint frequency are obtained by hourly observation of wind and temperature on a 100m high lower; the frequency of the 'event day of land and sea breeze' are given by observation of surface wind and land and sea breezes; the diffusion parameters are got from measurements of turbulent and wind tunnel simulation test. A new model calculating the annual mean atmospheric dispersion factor for coastal site of nuclear power plant is developed and established. This model considers not only the effect from mixing release and mixed layer but also the effect from the internal boundary layer and variation of diffusion parameters due to the distance from coast. The comparison between results obtained by the new model and current model shows that the ratio of annual mean atmospheric dispersion factor gained by the new model and the current one is about 2.0.

关键词： Coastal zones Diffusion Dispersions Earth atmosphere Temperature Wind

South American SLR stations monitoring ground displacement caused by the m8.8 Chilean earthquake of 2010

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Chinese Science Bulletin 2011年第8期56卷 738-742页

作者： YIN ZhiQiang HAN YanBen PODESTA Ricardo LIU WeiDong PACHECO Ana ALONSO Ester ACTIS Eloy HUANG DongPing ZHAO Limin WANG Rui XIA JinChao National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Observatorio Astronomico Felix Aguilar San Juan University San Juan 5400 Argentina

The m8.8 Chilean earthquake of February 27,2010 caused a large surface displacement near its *** Laser Ranging(SLR) station 7405,cooperatively operated by Germany and Chile about 130 km from the epicenter was affected by the *** SLR station,No.7406,operated jointly by the National Astronomical Observatories of the Chinese Academy of Sciences and San Juan University of Argentina,was about 600 km from the *** the observations of these two SLR stations with global SLR station observations,we calculate the geocentric coordinates of the two stations based on *** results show that the coordinates of the two stations have changed by varying ***-7405 moved substantially towards the southwest with displacements of about 3.11,0.52 and 0.49 m in X,Y,Z directions;the corresponding displacements for SLR-7406 are about 0.02,0.03 and 0.02 *** solution,as an independent result derived from SLR observations,could provide an essential external check for other positioning techniques such as GPS.

关键词：地表位移 8级地震 SLR 智利 ITRF2000 GPS定位技术中国科学院国家天文台