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Geographical Agglomeration of chinese Manufacturing Industries

中国人口·资源与环境：英文版 2007年第2期5卷 3-11页

作者： Zhang Hua 1, 2. Zheng Wei3.1. institute of Geographical {2. and Natural Resources Research, chinese Academy of {2., Beijing 100101, china 2. Graduate School of the chinese Academy of {2., Beijing 10003., china 3. School of Geography, Beijing Normal University, Beijing 100875, china institute of Geographical sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Graduate School of the chinese Academy of sciences Beijing 100039 China School of Geography Beijing Normal University Beijing 100875 China

Based on the plant level data from the First National Census of Basic Units, the Second National Census of Basic Units, and the First National Economic Census of china, this paper ex- amines the geographical agglomeration of chinese manufacturing industries at a more disaggregated level both by industrial classi-fication and spatial unit analysis. Applying the agglomeration index proposed by Maurel and Sedillot, studies show that the most agglomerated industries are resource-intensive, and capital and technology intensive while industries demanding localized inputs or serving localized markets or favored by local governments are fairly dispersed. The more disaggregated industries are more spa- tially agglomerated. At the finer spatial scale, industries are more dispersed. Results indicate that within-county spillovers are stronger than nearby-county spillovers, and within-prefecture spillovers are stronger than nearby prefecture spillovers. Local- ized spillovers are still quite substantial at a range beyond that of counties. Comparing the agglomeration index of chinese manu- facturing industries in 1996, 2.01 and 2.04, agglomeration seems to be a general tendency. Results also indicate that some industries have experienced remarkable changes in their levels of agglom- eration in the period 1996–2.04.

关键词： industrial agglomeration manufacturing industries the MS index

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Concatenating construction of the multisymplectic schemes for 2.1-dimensional sine-Gordon equation

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science china Mathematics 2004年第1期47卷 18-30页

作者： WANG Yushun, WANG Bin & QIN MengzhaoLASG, institute of Atmospheric Physics, chinese Academy of {2., Beijing 10002.,{3. School of Mathematics and Computer science, nanjing Normal University, nanjing 2.0097,{3. School of Mathematics and System science, chinese Academy of {2., Beijing 100080,{3. 1. LASG Institute of Atmospheric Physics Chinese Academy of Sciences 100029 Beijing China 2. School of Mathematics and Computer science Nanjing Normal University 210097 Nanjing China 3. School of Mathematics and System science Chinese Academy of Sciences 100080 Beijing China

In this paper, taking the 2.1-dimensional sine-Gordon equation as an example, we present the concatenating method to construct the multisymplectic schemes. The method is to discretizee independently the PDEs in different directions with symplectic schemes, so that the multisymplectic schemes can be constructed by concatenating those symplectic schemes. By this method, we can construct multisymplectic schemes, including some widely used schemes with an accuracy of any order. The numerical simulation on the collisions of solitons are also proposed to illustrate the efficiency of the multisymplectic schemes.

关键词： 2.l-climensional sine-Gordon equation multisymplectic scheme concatenating method solitons

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Narrow line Seyfert 1 galaxies: where are the broad line regions?

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science china(Physics,Mechanics & Astronomy) 2010年第12期53卷 2307-2311,2339-2343页

作者： MAO WeiMing 1,2.3., HU Chen 2., WANG JianMin 2., BIAN WeiHao 4 , ZHANG Shu 2.& ZHAO Gang 1 1 Key Laboratory of Optical Astronomy, National Astronomical Observatories, chinese Academy of {2., Beijing 100012. china 2.Key Laboratory for Particle Astrophysics, {3. of High Energy Physics, chinese Academy of {2., Beijing 100049, china 3.Graduate University of the chinese Academy of {2., Beijing 100049, china 4 Department of Physics, {12. Normal University, {12. 2.0011, china 1. Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China2. Key Laboratory for Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China3. Graduate University of the Chinese Academy of Sciences Beijing 100049 China4. Department of Physics Nanjing Normal University Nanjing 210011 China

A sample consisting of 2.1 narrow line Seyfert 1 galaxies (NLS1s) with high quality spectra from the Sloan Digital Sky Survey (SDSS) is selected to explore where broad line regions are in these objects. We find that the Hβ profile can be fitted well by three (narrow, intermediate and broad) Gaussian components, and the FWHM ratios of the broad to the intermediate components hold a constant of 3.0 roughly for the entire sample. If the broad components originate from the region scaled by the well-determined Hβ reverberation mapping relation, we find that the intermediate components originate from the inner edge of the torus, which is scaled by dust K-band reverberation. We find that the IC and the BC are strongly linked dynamically, but the relation of their covering factors is much more relaxed, implying that both regions are clumpy.

关键词： black hole physics galaxies: evolution quasars: general

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Sporopollen analysis of Core B10 in the southern Yellow Sea and the reflected characteristics of climate changes

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chinese science Bulletin 2003年第B06期48卷 42-48页

作者： FU Mingzuo~(1,2.3., LI Zhen~1, XU Xiaowei~1 & SHl Xuefa~1 1. Key Laboratory of Marine Sedimentology and Environmental Geology, First institute of Oceanography. State Oceanic Administration, Qingdao 2.6061.{2. 2. institute of Oceanology, {3. Academy of sciences, Qingdao 2.6071.{2. 3. Graduate School, {3. Academy of sciences, Beijing 10003..{2. 1. Key Laboratory of Marine Sedimentology and Environmental Geology First institute of Oceanography State Oceanic Administration 266061 Qingdao China 2. institute of Oceanology Chinese Academy of Sciences 266071 Qingdao China 3. Graduate School Chinese Academy of Sciences 100039 Beijing China

Eight sporopollen zones have been divided based on the results of high-resolution sporopollen analysis of Core B10 in the southern Yellow Sea. Based on the results along with ^14C datings and the subbottom profiling data,climatic and environmental changes since the last stage of late Pleistocene are discussed. The main conclusions are drawn as follows: (1) the vegetation evolved in the process of coniferous forest-grassland containing broad-leaved trees→coniferous and broad-leaved mixed forest→coniferons and broad-leaved mixed forest-grassland prevailed by coniferous trees→coniferous and broad-leaved mixed forest-grassland containing evergreen broad-leaved trees→coniferons and broad-leaved mixed forest-grassland prevailed by broadleaved trees→deciduous broad-leaved forest-meadow containing evergreen broad-leaved trees→coniferous and broadleaved mixed forest-grassland prevailed by broad-leaved trees→coniferous and broad-leaved mixed forest containing evergreen broad-leaved trees; (2. eight stages of climate changes are identified as the cold and dry stage, the temperate and wet stage, the cold and dry stage, the warm and dry stage, the temperate and wet stage, the hot and dry stage, the temperate and dry stage, then the warm and dry stage in turn; (3. the sedimentary environment developed from land,to littoral zone, to land again, then to shore-neritic zone; and (4) the Yellow Sea Warm Current formed during early-Holocene rather than Atlantic stage.

关键词：中国黄海气候变化碳14年代测定底基压型数据更新世沉积环境大西洋

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On-line parallel reversed phase two-dimensional liquid chromatography for high-throughput analysis of complex proteomic samples

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science china Chemistry 2006年第6期49卷 527-533页

作者： WANG Zhicong1,3. ZHANG Qinghe2. LI Tong2. ZHAO Zhongyi3.& ZHANG Weibing1 1. Dalian {2. of Chemical Physics, chinese Academy of sciences, Dalian 116011,{3. 2. Dalian Elite Analytical Instrument Co., Ltd., Dalian 116011,{3. 3. Faculty of Material science and Chemical Engineering,{3. University of Geosciences, Wuhan 43.074,{3. 1. Dalian institute of Chemical Physics Chinese Academy of Sciences Dalian 116011 China 3. Faculty of Material science and Chemical Engineering China University of Geosciences Wuhan 430074 China 2. Dalian Elite Analytical Instrument Co. Ltd. Dalian 116011 China

A comprehensive two-dimensional liquid chromatographic system (2. SCX/RP) is con- structed with a 10-port-2.way valve using strong cation exchange chromatography (Hypersil SCX, 100 mm×4.6 mm I.D.) followed by reversed phase chromatography (Hypersil BDS C18, 15 mm×4.6 mm I.D.) to separate the complex peptides from globin peptic hydrolysate. After the sample was loaded on the SCX column, the phosphate buffer (pH 4.0) was used to elute the peptides. Then, elutes flowed through the interface and the peptides focused on the head of the trapping columns (Hypersil BDS C18, 15 mm×4.6 mm I.D.) but salt passed into the waste. After the valve was switched, the samples were flushed with a backward flow into the RP analytical column. The peptides on the SCX were eluted with 12.discontinuous steps linearly increasing salt concentrations. The peptides enriched on the trapping column were desalted and separated by the RP columns. The resolution and the resolved peaks of the 2. SCX/RP system were greatly increased and the total peak capacity reached as high as 2.80.

关键词： two-dimensional liquid chromatography, interface, trapping column, proteomics, globin.

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Spatial distribution of 10m firn temperature in the Antarctic Ice Sheet

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science china Earth {2. 2011年第5期54卷 655-666页

作者： WANG YeTang1,3.& HOU ShuGui2.3.1 Shandong Marine Fisheries Research {2.,Yantai 2.4006,china 2.MOE,Key Laboratory for Coast and Island Development,School of Geographic and Oceanographic sciences,{3. University,{3. 2.0093.china 3.tate Key Laboratory of Cryospheric science,Cold and Arid Regions Environmental and Engineering Research {2.,{12. Academy of sciences,Lanzhou 73.000,china 1. Shandong Marine Fisheries Research institute Yantai 264006 China3. State Key Laboratory of Cryospheric Science Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China2. MOE Key Laboratory for Coast and Island Development School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China

A database of Antarctic 10 m firn temperature was constructed using available borehole temperature measurements with data quality control to extend knowledge of Antarctic climate. Slopes from a high-resolution digital elevation model and the main ice divide were used to delineate main drainage sectors across Antarctica. In each drainage sector, a quantitative relationship between temperature and latitude, longitude and altitude was established using available tim temperature data. Quantitative relationships incorporating other factors affecting Antarctic air temperature such as atmospheric circulation and small-scale to- pography were used to derive a 10-km resolution grid map of surface temperature. The resulting temperature patterns presented a reasonable depiction of both large and small-scale variations in Antarctic 10 m firn temperature. This map is useful for many spatial variation studies, Antarctic ice sheet models, and comparison with satellite-derived temperature data and outputs of atmospheric general circulation models.

关键词： Antarctica 10 m firn temperature spatial distribution

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Determination of Surface Area of Red Mud and Beringite Using Methylene Blue Method

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Pedosphere 2002年第2期12卷 189-192页

作者： ZHANG GANGYA, LUO YONGMING and DENG XIHAIinstitute of soil {2., the {3. Academy of sciences, nanjing 2.0008 (china) bh.med.kyoto-u.ac.jp

The adsorption of methylene blue (MB) on three soil amendments,red mud from Hungary, rd mud from UK and beringite from Belgium, wasstudied to determine the surface areas of the amendments using a0.005 mol L^-1 NaCl solution and deionised water as backgroundsolutions. The surface areas determined by the methylene blue methodin the 0.005 mol L^-1 NaCl solution were 3.3.7, 2.3.0 and 5.576 m^2.^-1 for red mud (Hungary), red mud (UK) and beringite, respectively,slightly lower than those in the deionised water system.

关键词： beringite methylene blue red surface area

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Gene flow from transgenic oilseed rape (Brassica napus L.) to cruciferous weeds under mentor pollen inducement

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Progress in Natural science:Materials International 2007年第11期17卷 1284-1289页

作者： Zhao Xiangxiang1,2. Luo Yuming1, Lu Weiping2. Qi Cunkou3. Pu Huiming3.and Wang Youping2.1. Biotechnology Key Laboratory of Eco-agriculture in Hongze Lake Region, Jiangsu Province, Huaiyin Normal College, Huai'an 2.3.01, china 2. Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 2.5009, china 3. institute of Industrial Crops, Jiangsu Academy of Agricultural {3., nanjing 2.0014, china) Biotechnology Key Laboratory of Eco-agriculture in Hongze Lake Region Jiangsu Province Huaiyin Normal College Huai'an 223001 China Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology Yangzhou University Yangzhou 225009 China institute of Industrial Crops Jiangsu Academy of Agricultural Sciences Nanjing 210014 China

The alien gene flow between genetically modified glyphosate-resistant rapeseed variety Q3.(Brassica napus L.) and four cruciferous weeds was studied under mentor pollen inducement. The results showed that when Thlaspi arvense L., Capsella bursa-pastoris (L.) Medic, Cardamine hirsuta L. and Rorippa palustris (L.) Besser were pollinated with mentor pollen, the mixed Q3.and the weed, pollen grains aggregated largely and germinated quickly, and the numbers of pollen tubes penetrating into the style and the ovary were greatly increased as compared with corresponding self-pollination groups. Twenty four to forty eight hours after pollination, several pollen tubes were observed to penetrate into the ovule via micropyle in each mentor combination. However, when the mentor progenies were analyzed by PCR, all of them showed negative for the Q3.herbicide-resistant gene. Collectively, these results indicated that crossing between T. arvense, C. bursa-pastoris, C. hirsuta, R. palustris (as female) and Q3.(as male) was highly incompatible and the herbicide-resistant gene could not flow from Q3.to these four weeds.

关键词： herbicide-resistant rapeseed cruciferous weeds mentor pollination aniline blue fluorescence gene flow

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Review on the study of entanglement in quantum computation speedup

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chinese science Bulletin 2007年第16期52卷 2161-2166页

作者： DING ShengChao1,3.& JIN Zhi1,2.1 institute of Computing Technology,{2. Academy of sciences,Beijing 100080,{3. 2.Academy of Mathematics and Systems science,{2. Academy of sciences,Beijing 100080,{3. 3.Graduate University of {2. Academy of sciences,Beijing 100080,{3. institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

The role the quantum entanglement plays in quantum computation speedup has been widely disputed. Some believe that quantum computation's speedup over classical computation is impossible if entan-glement is absent,while others claim that the presence of entanglement is not a necessary condition for some quantum algorithms. This paper discusses this problem systematically. Simulating quantum computation with classical resources is analyzed and entanglement in known algorithms is reviewed. It is concluded that the presence of entanglement is a necessary but not sufficient condition in the pure state or pseudo-pure state quantum computation speedup. The case with the mixed state remains open. Further work on quantum computation will benefit from the presented results.

关键词：量子论量子纠缠量子计算加速模拟

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Formal analysis and design of multi-party fair exchange protocols

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science in china(Series F) 2006年第2期49卷 155-174页

作者： QING Sihan1,2.3.& LI Gaicheng1,3.1. Engineering Research Center for Information Security Technology, {2. of Software, chinese Academy of sciences, Beijing 100080,{3. 2. Beijing Zhongke Ansheng Corporation of Information Technology, Beijing 100080,{3. 3. Graduate School of the chinese Academy of sciences, Beijing 10003.,{3. 1. Engineering Research Center for Information Security Technology Institute of Software Chinese Academy of Sciences Beijing 100080 China 2. Beijing Zhongke Ansheng Corporation of Information Technology Beijing 100080 China 3. Graduate School of the chinese Academy of {2. Beijing 100039 China

Based on the origin of message items and channel combination between transacting parties, and events and relations among events, this paper presents a concise, precise, and hierarchical model for general fair exchange protocols, formally specifies various security requirements which are able to reflect inherent requirements for fair exchange protocols more rigorously, and partition these security requirements with fine granularity. This work helps analyze, debug, and design multi-party fair exchange protocols more effectively and elaborately,

关键词： fair exchange logical protocol formal model security requirement.

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