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The Interaction of Cobalt (Ⅲ) Mixed-Ligand Coordination Compound Containing Dipyrido[3,2-a:2′,3′-c] phenazine With Calf Thymus DNA -

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Chinese Chemical Letters 1997年第6期8卷 551-552页

作者： Lan JIN Pin YANG (state key laboratory of Coordination Chemistry, nanjing university, nanjing 210093: Institute of Molecular Science, Shanxi university. Taiyuan 030006) state key Lab. of Coord. Chemistry Nanjing University Nanjing 210093 China Institute of Molecular Science Shanxi University Taiyuan 030006 China

The binding of Co (phen)2dppz3+ to calf thymus DNA,as investigated using absorption spectroscopy. viscosity and electrophoresis measurements,here dppz is dipyrido[3, 2-a: 2'3'-c]phenazine. The compound shows absorption hypochromicity and the specific viscosity increased upon binding to calf thymus DNA The complex is also shown to be more efficient photosensitisers for single strand breaks in plasmid DNA

关键词： phenazine With Calf Thymus DNA Figure Mixed-Ligand Coordination Compound Containing Dipyrido[3,2-a The Interaction of Cobalt

Criteria for defining and recognizing the various orders of sequences in outcrop sequence stratigraphy

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Science china Earth Sciences 2004年第7期47卷 618-629页

作者： WANG Xunlian Faculty of Earth Sciences and mineral Resources, china university of Geosciences, Beijing 100083, china state key laboratory of Palaeobiology and Stratigraphy, nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, nanjing 210008, china 1. Faculty of Earth Sciences and mineral Resources China University of Geosciences 100083 Beijing China 2. state key laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences 210008 Nanjing China

The regional distribution in different depositional facies belts is here regarded as an important criterion for defining and recognizing the various orders of sequences. The third-order sequence is possibly global in nature, which may be discerned in different depositional facies belts in one continental margin and can be correlated over long distances, sometimes even worldwide. Commonly, correlation of subsequence (fourth-order sequence with time interval of 0.51.5 Ma) is difficult in different facies belts, although some of them may also be worldwide in distribution. A subsequence should be able to discern and correlate within at least one facies belt. The higher-order sequences, including microsequence (fifth-order sequence) and minisequence (sixth-order sequence), are regional or local in distribution. They may reflect the longer and shorter Milankovitch cycles respectively. Sequence and subsequence are usually recognizable in different facies belts, while microsequence and minisequence may be distinguished only in shallow marine deposits, but not in slope and basin facies deposits. A brief discussion is made on the essential conditions for correct identification of sequences, useful methods of study, and problems meriting special attention in outcrop sequence stratigraphy.

关键词： outcrop sequence stratigraphy, facies belt, sequence, subsequence, microsequence, minisequence, meter-scale cyclothem, Milankovitch cycle.

Environmental archaeology of the Dachang region in the Daning Valley,the Three Gorges reservoir region of the Yangtze River,china

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Chinese Science Bulletin 2008年第S1期53卷 140-152页

作者： ZHANG Yun 1 &ZHU Cheng 2 1 state key laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093, china 2 School of Geographic and Oceanographic Sciences,nanjing university,nanjing 210093,china 1. state key laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China 2. School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China

Environmental archaeology of archaeological sites on both sides of the Dachang section in the Daning River,the Three Gorges of the Yangtze River,shows that riverbed evolution has a great influence on the distribution of archaeological sites during the prehistorical and historical period,and it restricts human activity and the development of ancient *** investigation,dating data,paleocurrent analysis of 100 gravels on the riverbed and archaeological excavation reveal that the riverbed of the Dachang section developed in the Shuangyantang region during the early stage,after about 30 kaBP it shifted westward gradually and reached the present *** with the westward shift,the focus of ancient culture changed for several *** the Western Zhou Dynasty's period,the east riverbank of the Daning River was the main residential *** the Han Dynasty,along with the westward shift,the living space of ancient people was no longer confined to the east riverbank and the focus of culture moved *** the Zhangjiawan site became the main dwelling *** the late Han Dynasty, the villages were flooded and the ancients had to immigrate to a high *** of the Han and the Jin Dynasties outcropped on the flood plain of the east bank because their surface sediments were eroded by several flood events and the westward shift of the riverbed.

关键词： the Daning River environmental archaeology the Shuangyantang site the Zhangjiawan site tombs of the Han and the Jin Dynasties

A New Thionine Modified Electrode by Anchorage to Bi-(2-aminoethyl)-aminodithiocarboxyl Acid Self-assembled Monolayers through Coordination with Cu^(2+#)

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Chinese Chemical Letters 1997年第11期8卷 993-996页

作者： Jing Juan XU Hong Yuan CHEN Rui Qun FANG (Department of Chemistry, the state key laboratory of Coordination Chemistry, nanjing university, nanjing, 210093) Department of Chemistry State Key Lab. of Coord. Chemistry Nanjing University Nanjing 210093 China

A new method for preparing chemically modified gold electrode by anchoring thionine to self-assembled bi - (2 -aminoethyl) -aminodithiocarboxyl acid(BANTC) monolayers through coordination with Cu2+ is described. This thionine modified electrode exhibits two-new redox *** protons were involved in the electrochemical process undergone by the couple I in the pH range of 5.0-10.0. The apparent surface electron transfer rate constant is about 0.050s-1.

关键词： aminodithiocarboxyl Acid Self-assembled Monolayers through Coordination with Cu A New Thionine Modified Electrode by Anchorage to Bi aminoethyl

Investigation of the Buffering Function of Aluminum being in Equilibrium with the mineral Kaolinite in Acidic Natural Water

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Chinese Chemical Letters 2000年第7期11卷 655-658页

作者： Feng LIU Shu Ping BI Ning GAN(Department of Chemistry, state key laboratory of Pollution Control & Resource Reuse,nanjing university, nanjing 210093) nanjing Univ Dept Chem State Key Lab Pollut Control & Resource Reuse Nanjing 210093 Peoples R China

This paper presents a computer model to investigate the buffering function of aluminum being in equilibrium with mineral kaolinite in acidic natural water. Factors affecting the theoretical pH values are discussed. Th... 详细信息

关键词： kaolinite aluminum buffering function

A study on methane coupling to acetylene under the microwave plasma

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Science china Chemistry 2010年第1期53卷 231-237页

作者： SHEN ChangSheng1,SUN YongZhi1,SUN DeKun2 & YANG HongSheng1 1state key laboratory of Millimeter Waves School of Electronic Science and Engineering,Southeast university,nanjing 210096,china 2School of Chemistry and Chemical Engineering,nanjing university,nanjing 210093,china 1. state key laboratory of Millimeter Waves School of Electronic Science and Engineering Southeast University Nanjing 210096 China2. School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China

By optimizing the microwave chemistry reactor made of the rectangular waveguide resonator,the methane conversion(the maximum 93.7%),the C2 hydrocarbon yield(the maximum 91.0%) and the acetylene yield(the maximum 88.6%) were all greatly increased under the microwave ***,for the optimal reactor,the change of the methane conversion and the C2 hydrocarbon yield is little within the range of the pressures in the *** C2 hydrocarbon is mainly made up of acetylene,and the selectivity for acetylene is above 90%.Energy yield and space time yield of acetylene are also *** emission spectroscopy(OES) was adopted for the diagnosis of methane coupling to acetylene under microwave *** excited species(CH,C2,H2,Hα) were detected in the spectra range of 300-750 *** on the products and the excited species,the reaction mechanism of methane coupling under microwave plasma was investigated,using the thermodynamics and kinetics of the chemical reaction.

关键词： microwave plasma methane acetylene

Synthesis　and　Amphiphilic　Characteristics　of　8－Hydroxyquinoline　with　Alkyl　Chain

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Chinese Chemical Letters 1996年第9期7卷 807-808页

作者： Jian Ming OUYANG Chao Yang JIANG Zi Hou TAI Wen Xia TANG(state key laboratory of Coordination Chemisty, nanjing university,nanjing,210093) nanjing UNIV STATE KEY LAB COORDINAT CHEMNANJING 210093PEOPLES R CHINA

The amphiphilic derivatives of 8-hydroquinoline with alkyl chain have been *** derivatives can form stable monolayer on pure water and an aqueous subphase containing Metal ions.

关键词： Hydroxyquinoline Characteristics Alkyl

Loop reduction techniques for reachability analysis of linear hybrid automata

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Science china(Information Sciences) 2012年第12期55卷 2663-2674页

作者： PAN MinXue,LI You,BU Lei & LI XuanDong state key laboratory for Novel Software Technology,Department of Computer Science and Technology,nanjing university,nanjing 210093,china 1. state key laboratory for Novel Software Technology Department of Computer Science and Technology Nanjing University Nanjing 210093 China

The problem of reachability analysis of linear hybrid automata(LHA) is very *** paper considers to improve the efficiency of the reachability analysis by optimizing the structures of *** identify two types of loops called the flexible loops and the zero loops,and present the techniques to replace the repetitions of those loops in the behavior of LHA with finite sequences of locations and in the meantime simplify the associated *** techniques work not only for the polyhedral computing based algorithms but also for the bounded model checkers.

关键词： real-time and hybrid systems linear hybrid automata reachability analysis

A local spin evaluation into the active site models of [2Fe2S] ferrodoxin [Fe_2S_2(SR)_4]^(2-) (R=-H, -CH_3)

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Science china Chemistry 2007年第3期50卷 327-334页

作者： WEI JiChong1,2, WANG Yan3 & JU GuanZhi2,3 1 Department of Chemistry, Hainan Normal university, Haikou 571158, china 2 state key laboratory of Theoretical and Computational Chemistry, Jilin university, Changchun 130023, china 3 Department of Chemistry, nanjing university, nanjing 210093, china 1. Department of Chemistry Hainan Normal University Haikou 571158 China 2. state key laboratory of Theoretical and Computational Chemistry Jilin University Changchun 130023 China 3. Department of Chemistry Nanjing University Nanjing 210093 China

To test the feasibility of local spin theory of Davidson and Clark for ferrodoxin clusters, the models [Fe2S2(SR)4]2- (R=-H, -CH3) are chosen for evaluation. This purpose is realized by calculating the local spin expectation values , 2 >, and mA and discussing the connection between these expected values and the Heisenberg spin model (HSM) and the Noodleman broken-symmetry approach. In practical calculation, the spin-unrestricted Hartree-Fock (UHF) and spin-polarized density functional theory (DFT) are used and the calculational qualities of these two methods are also discussed. In addition, the theoretical magnetic coupling constants JAB of these models are calculated by various computational schemes for comparison with both theoretical and experimental results previously reported.

关键词： local spin iron-sulfur protein model density function theory magnetic coupling constant