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A preliminary study on fingerprinting approach in marine sediment dynamics with the rare earth elements

Acta Oceanologica Sinica 2010年第4期29卷 62-77页

作者： ZHOU Xiaojing LI Anchun JIANG Fuqing MENG Qingyong key laboratory of Marine Geology ＆ Environment Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China graduate school of the{2. Beijing 100039 China

Locating the quantitized natural sediment fingerprints is an important work for marine sediment dynamics *** total of 146 sediment samples were collected from the Shelf of the East china Sea and five rivers,including Huanghe （Yellow）,Changjiang （Yangtze）,Qiantang,Ou and Min *** sediment grain size and the contents of rare earth elements （REEs） were measured with laser particle size analyzer and ICP-MS *** results show that absolute REE content （ΣREE） and the concentration ratio of light REEs to heavy REEs （L/HREE） are different in the sediments among those *** are higher REE contents in being less than 2.m and 2.3. μm fractions in the Changjiang Estuary surface *** REE contents of bulk sediment are dominated by the corresponding values of those leading *** of sediment is higher close to the estuaries and declines seaward on the inner shelf of the East china Sea （ECS）.The L/HREE ratio has a tendency of increase southward from 2. ？ *** conditions plays a predominate role on spacial distributions of the surficial sediment’s REE *** some situations,the currents tend to remove the coarser light grains from initial populations,as well as the deposit of the finer heavy mineral *** other situations,the currents will change the ratio of sediment constituents,such as ratio between silts and clays in the *** a result,the various values of REE or L/HREE ratio in different bulk sediments are more affected by the change of size-fractions than source *** the long-term stable hydrodynamic environment,i.e.,the East china Sea Shelf,new sediment transport model based on the size and density gradation concept may help to understand the spatial distribution patterns of REE parameters.

关键词： rare earth elements fingerprints East china Sea Shelf sediment transport

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The diurnal variations, semiannual and winter anomalies of the ionospheric TEC based on GPS data in china

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Progress in Natural Science:Materials International 2005年第1期 57-61页

作者： HUO Xingliang 1,2.*, YUAN Yunbin 1, OU Jikun 1, WEN Debao 1,2.and LUO Xiaowen 1,2.1. {3. laboratory of {2. geodesy, institute of geodesy and geophysics, chinese academy of sciences, wuhan 4.0077, china 2. graduate {13. of chinese academy of sciences, beijing 10003., china) key laboratory of {2. {3.，institute of {3. and geophysics，chinese academy of sciences，wuhan 4.0077，{12. graduate school of{2.，{3. 10003.，china key laboratory of {2. {3.，institute of {3. and geophysics，chinese academy of sciences，wuhan 4.0077，{12.

With the spherical harmonic (SH) function model and the dual frequency GPS P code phase data from the Crustal Movement Observation Network of china (CMONOC) during the period from year 2.00 to 2.02. time series of total electron content (TEC) in the area of china is calculated. The diurnal variations, semiannual, and winter anomalies of the ionosphere in the area of china are analyzed and discussed, especially according to the results of year 2.01.

关键词： Global Positioning System spherical harmonic function model total electron content semiannual anomaly winter anomaly.

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Low-frequency fluctuations in the magnetosheath: Double Star TC-1 and Cluster observations

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Science china(Technological sciences) 2008年第10期51卷 1626-1638页

作者： DU Jian1,2.WANG Chi1, SONG Pu3.4 & ZHANG TieLong5 1 State key laboratory of Space Weather, Center for Space Science and Applied Research,{2., beijing 100190, china 2.graduate school,{2., beijing 10004., china 3.Earth, Environmental and Atmospheric sciences Department, University of Massachusetts, Lowell, Mas-sachusetts MA 01854, USA 4 Center for Atmospheric Research, University of Massachusetts, Lowell, Massachusetts MA 01854, USA 5 Space Research {13., Austrian {12. of sciences, Graz A-8010, Austria State key laboratory of Space Weather Center for Space Science and Applied Research Chinese Academy of Sciences Beijing 100190 China graduate school Chinese Academy of Sciences Beijing 100049 China Earth Environmental and Atmospheric Sciences Department University of Massachusetts Lowell Massachusetts MA 01854 USA Center for Atmospheric Research University of Massachusetts Lowell Massachusetts MA 01854 USA Space Research institute Austrian Academy of Sciences Graz A-8010 Austria

The magnetic field variations are analyzed in the range of time periods from 4 s to 2.0 s in the magnetosheath observed by the Double Star TC-1 and Cluster in 2.04. The characteristics of the magnetic field fluctuations are strongly controlled by the angle between the upstream interplanetary magnetic field (IMF) and the normal of the bow shock. Generally speaking, the magnetic field fluctuations in the quasi- parallel magnetosheath are more intense than those in the quasi-perpendicular ones. Almost purely compressional waves are found in the quasi-perpendicular magnetosheath. With the increase of the local plasma β, both the magnitude and direction of the magnetic field fluctuate more intensely. There exists an inverse correlation between the local temperature anisotropy T⊥/T|| and the plasma β.

关键词： low-frequency fluctuations magnetosheath MHD instabilities

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Response of Nematodes in a Hapli-Udic Argosol to Urea Amended with Urease and Nitrification Inhibitors

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Pedosphere 2006年第4期16卷 428-434页

作者： HUA Jian-Feng JIANG Yong LIANG Wen-Ju Soil Ecology laboratory Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 （China） graduate school of the{2. Beijing 100039 （China）

Effects of urea amended with urease and nitrification inhibitors on soil nematode communities were studied in a Hapli- Udic Argosol （Cambisol, FAO） in Liaoning Province of Northeast china. A completely random design with four treatments, i.e., conventional urea （CU）, slow-release urea amended with a liquid urease inhibitor （SRU1）, SRU1 ＋nitrification inhibitor dicyandiamide （SRU2., and SRU1 ＋ nitrification inhibitor 3.5-dimethylpyrazole （SRU3. and four replicates were applied. Thirty-nine genera of nematodes were identified, with Cephalobus and Aphelenchus being dominant; and in all treatments, the dominant trophic group was bacterivores. In addition, during the growth period of spring wheat （Triticum aestivum L.）, soil urease activity was lower in SRUs than in CU. The numbers of total nematodes and bacterivores at wheat heading and ripening stages, and omnivores-predators at ripening stage were higher in SUR3.than in CU, SRU1 and SRU2.（P 〈 0.05）.

关键词： Hapli-Udic Argosol nitrification inhibitor slow-release urea soil nematodes urease inhibitor

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Microcosmic analysis of ductile shearing zones of coal seams of brittle deformation domain in superficial lithosphere

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Science china Earth sciences 2004年第5期47卷 393-404页

作者： JU Yiwen1,2. WANG Guiliang2. JIANG Bo2.& HOU Quanlin1 1. {3. school,{2., beijing 10003., china 2. College of Mineral Resources and Geosciences, china University of Mining & Technology, Xuzhou 2.1008, china chinese Acad Sci Grad Sch Beijing 100039 Peoples R China china Univ Min & Technol Coll Mineral Resources & Geosci Xuzhou 221008 Peoples R China

The ductile shearing zones of coal seams in a brittle deformation domain in super-ficial lithosphere are put forward based on the study on bedding shearing and ductile rheology of coal seams. The macrocosmic and microcosmic characteristics include wrinkle fold, mymonitized zones and ductile planar structure of coal seams, etc., while the microcosmic characteristics may also include different optic-axis fabrics and the anisotropy of vitrinite reflectance as well as the change of chemical structure and organic geochemistry components. The forming mechanism is analyzed and the strain environment of ductile shearing zones of coal seams discussed. The result indicates that, in the superficial brittle deformation domain, the coal seams are easy to be deformed, resulting in not only brittle deformation but also ductile shearing deformation under the action of force. Because of simple shearing stress, the interlayer gliding or ductile rheology may take place between coal seams and wall rocks. Therefore, many ductile shearing zones come into being in superficial lithosphere (<5 km). The research on ductile shearing zone of brittle de-formation domain in superficial lithosphere is significant not only theoretically for the study of ductile shearing and ductile rheology of the lithosphere but also practically for the structural movement of coal seams, the formation and accumulation of coal-bed methane, and the preven-tion and harness of gas burst in coal mine.

关键词： brittle deformation domain, interlayer gliding, ductile rheology, ductile shearing zones of coal seams, coal mymonite, vitrinite reflectance anisotropy.

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New synthesis of amphiphilic copolymers PE-g-PEO via esterfication

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chinese Science Bulletin 2003年第6期48卷 523-525页

作者： L?Yingying1, MA Zhi1,2. HU Youliang1, XU G. X.3.& CHUNG T. C.3.1. State key laboratory of Engineering Plastics, Center for Molecular Science, {2. of Chemistry, chinese academy of sciences, Bei-jing beijing Lab of Catalysis, key Lab of Catalysis of china Na-tional Petroleum Corporation, beijing 100080, china 2. graduate school of chinese academy of sciences, beijing 10003., china 3. Department of Material Science and Engineering, Pennsylvania State University, University Park, PA 16802. USA State key laboratory of Engineering Plastics Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing Beijing Lab of Catalysis Key Lab of Catalysis of China National Petroleum Corporation Beijing China graduate school of{2. Beijing China Department of Material Science and Engineering Pennsylvania State University PA USA

A new series of high molecular weight amphi-philic graft copolymers PE-g-PEO has been prepared. The esterifications between PE-p-MS-g-MA and PEO with OH group at the chain end are carried out under different condi-tions. The compositions of these graft copolymers are studied by NMR and FTIR. It is found to be a convenient and effi-cient way to prepare high molecular weight PE-g-PEO graft copolymers.

关键词：聚乙烯聚(乙烯氧化物) 酯化反应合成方法亲油亲水两性片断共聚物 PE-g-PEO

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Multiparty simultaneous quantum identity authentication with secret sharing

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Science china(Physics,Mechanics & Astronomy) 2008年第3期51卷 321-327页

作者： YANG YuGuang1,2.WEN QiaoYan3.& ZHANG Xing4,5 1 College of Computer Science and Technology,beijing University of Technology,beijing 10002.,{2. 2.State key laboratory of Information Security (graduate University of the chinese academy of sciences),beijing 10004.,{2. 3.{13. of Science,beijing University of Posts and Telecommunications,beijing 100876,{2. 4 institute of Electronic Technology,Information Engineering University,Zhengzhou 450004,{2. 5 Trusted Computing laboratory,beijing University of Technology,beijing 10002.,{2. College of Computer Science Technology Beijing University of Technology Beijing 100022 China State key laboratory of Information Security [graduate University of the chinese academy of sciences] Beijing 100049 China school of Science Beijing University of Posts Telecommunications Beijing 100876 China institute of Electronic Technology Information Engineering University Zhengzhou 450004 China Trusted Computing laboratory Beijing University of Technology Beijing 100022 China

Two multiparty simultaneous quantum identity authentication (MSQIA) protocols based on secret sharing are presented. All the users can be authenticated by a trusted third party (TTP) simultaneously. In the first protocol,the TTP shares a random key K with all the users using quantum secret sharing. The ith share acts as the authentication key of the ith user. When it is necessary to perform MSQIA,the TTP generates a random number R secretly and sends a sequence of single photons encoded with K and R to all the users. According to his share,each user performs the corresponding unitary operations on the single photon sequence sequentially. At last,the TTP can judge whether the impersonator exists. The sec-ond protocol is a modified version with a circular structure. The two protocols can be efficiently used for MSQIA in a network. They are feasible with current technol-ogy.

关键词： quantum identity authentication secret sharing quantum cryptography

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Solid State Polymer Electrolytes for Dye-sensitized Solar Cell

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复旦学报（自然科学版） 2007年第5期46卷 660-661页

作者： Xiong Yin1,2. Wanchun Xiang1,2. Xurui Xiao1, Yuan Lin1, Shibi Fang1(1.key {3. of Photochemistry, {2. of Chemistry, chinese academy of sciences, beijing 100080, china 2.graduate school of chinese academy of sciences, beijing 10003., china) institute of Chemistry Chinese Academy of Sciences Key Laboratory of Photochemistry Chinese Academy of Sciences Beijing 100080

1 Introduction Over the past decade,Dye-sensitized solar cells (DSSCs) have been intensively investigated as potential alternatives to conventional inorganic photovoltaic devices due to their low production cost and high energy conversion[1-4]. This type of solar cell has achieved an impressive energy conversion efficiency of over 10%,whose electrolyte is a voltaic organic liquid solvent containing iodide/triiodide as redox ***,the use of a liquid electrolyte brings difficulties in the practi...

关键词： dye-sensitized solar cell chemically cross-linked gel polymer electrolyte quaternization reaction

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Molecular identification of species in Prunus sect. Persica (Rosaceae), with emphasis on evaluation of candidate barcodes for plants

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Journal of Systematics and Evolution 2011年第2期49卷 138-145页

作者： 1,2.Xu QUAN 1 Shi-Liang ZHOU 1 (State key laboratory of Systematic and Evolutionary Botany, {2. of Botany, chinese academy of sciences, beijing 100093. china) 2.(graduate school of the chinese academy of sciences, beijing 10004., china) (State key laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China) (graduate school of the{2. Beijing 100049 China) *Correspondence: Shi-Liang ZHOU *Correspondence: Author for correspondence. E-mail: slzhou@*** Tel.: 86-10-62.3.503 Fax: 86-10-62.90843.

Species of Prunus L. sect. Persica are not only important fruit trees, but also popular ornamental and medicinal plants. Correct identification of seedlings, barks, or fruit kernels is sometimes required, but no reliable morphological characters are available. Nowadays, the technique of DNA barcoding has the potential to meet such requirements. In this study, we evaluated the suitability of 11 DNA loci (atpB-rbcL, trnH-psbA, trnL-F, trnS-G, atpF-H, rbcL, matK, rpoB, rpoC1, nad1, and internal transcribed spacer [ITS]) as candidate DNA barcodes for peaches, using samples from 3. populations, covering all the species in sect. Persica. On the whole, the primers worked well in this group and sequencing difficulties were met only in the case of ITS locus. Five loci (rbcL, matK, rpoB, rpoC, and nad1) have very low variation rates, whereas atpB-rbcL, atpF-H, trnH-psbA, trnL-F and trnS-G show more variability. The most variable loci, atpB-rbcL and trnH-psbA, can distinguish three of the five species. Two two-locus combinations, atpB-rbcL+trnL-F and atpB-rbcL+atpF-H, can resolve all five species. We also find that identification powers of the loci are method-dependent. The NeighborNet method shows higher species identification power than maximum parsimony, neighbor joining, and unweighted pair group method with arithmetic mean methods.

关键词： atpB-rbcL DNA barcode Prunus sect. Persica trnL-F.

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A construction of hyperbent functions with polynomial trace form

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Science china Mathematics 2011年第10期54卷 2229-2234页

作者： CAO XiWang1,2.3.& HU Lei3.1Department of Mathematics,Nanjing University of Aeronautics and Astronautics,Nanjing 2.0016,china 2.MIB of Ministry of Education,beijing University of Aeronautics and Astronautics,beijing 100191,china 3.tate key laboratory of Information Security,graduate school of chinese academy of sciences,beijing {13.,china 1. Department of Mathematics Nanjing University of Aeronautics and Astronautics Nanjing 210016 China2. LMIB of Ministry of Education Beijing University of Aeronautics and Astronautics Beijing 100191 China3. State Key Laboratory of Information Security Graduate School of Chinese Academy of Sciences Beijing 100049 China

This paper presents a construction of infinite classes of binary and p-ary hyperbent functions of polynomial trace form,based on finding a zero of a Kloosterman sum.

关键词： bent function hyperbent function Kloosterman sums

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