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ON THE COASTAL ECONOMIC ZONE AROUND THE YELLOW SEA & BOHAI SEA——Features & Comparative Advantages in Regional Economic Cooperation

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南开经济研究 1994年第S2期 12-20页

作者： chen Yue nankai UNIVERSITY Shen Huan

Since the middle of the nineteen-eighties, there haveemerged in Northeast Asia many circles or economic zones of whichthe concept of the coastal region around the Yellow Sea and

关键词： Features

Design and implementation of a portable intelligent electrocardiograph

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Design and implementation of a portable intelligent electroc...

SYNTHESIS AND CHARACTERIZATION OF NOVEL FUNCTIONAL HOST COMPOUND 2￣[1] MONO-[6-O-(8-QUINOLYL)]-β-CYCLODEXTRIN

第26届中国控制与决策会议

作者： chen nankai Wang Yaonan Lu Xiaoqing College of Electrical and Information Engineering Hunan University

ISBN: (纸本)9781479937097

In this paper, a novel portable intelligent electrocardiograph（ ECG） is designed which is low-cost, small size and easy to popularize. With AT89S52 single chip and LCD12864 monitor as its core controller and display instrument respectively, based on an improved signal processing and waveform detection method, the ECG is able to achieve real-time display of heart waveform and heart rate on its LCD. In particular, a secondary amplifying circuit that contains the high-pass, low-pass and band-stop filter circuits is proposed, which is low-power-consuming, highly-precise, and robust against various disturbances. Moreover, the detected ECG signal data can be stored automatically on a SD card for further analysis and diagnosis.

关键词： ECG signals Active filter circuits Intelligent detection Portable

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Chinese Chemical Letters 1996年第6期7卷 523-526页

作者： Yu LIU Yi Min ZHANG Yun Ti chen(Department of Chemistry, nankai University, Tianjin 300071) Department of Chemistry Nankai University Tianjin 300071

A novel β-cyclodextrin (β-CD) derivative (2) boring a single 8-quinolyl moiety hasben Synthesized by a convenient method in 41.4% yield. and the compound was chacterized by1H-NMR. FT-IR supra-and elemental analysis, etc. The sphotometric titrations have beenperformed in buffered aqueous solution (pH=7.20) to give the complex stability constants (K) andGibbs free energy changes (-ΔG°) for the 1∶1 inclusion complexation of soing amino acids guestmolecules with host compound (2) and money6-anilino)-β-cyclodextrin (1 )

关键词： ENTHALPY-ENTROPY COMPENSATION CALORIMETRIC TITRATION INCLUSION COMPLEXATION MOLECULAR RECOGNITION ALPHA-CYCLODEXTRIN BETA-CYCLODEXTRIN THERMODYNAMICS

The Effect of Neodymia on the Activityof Hydrocarbon Synthesis Catalysts from Carbon Dioxide

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Chinese Chemical Letters 1999年第11期10卷 965-966页

作者： Xin Ying LIU Guo Cai DENG Yun Ti chen(Department of Chemistry, nankai University, Tianjin 300071) Department of Chemistry Nankai University

In this paper, neodymia was added into hydrocarbon synthesis catalysts by solid-mixing method to improve the activity of hydrocarbon synthesis catalyst from carbon dioxide. 0.1% Nd2O3 can improve the carbon dioxide co... 详细信息

关键词： neodymia hydrocarbon synthesis carbon dioxide hydrogenation

SYNTHESIS　AND　CHARACTERIZATION　OF　NOVEL　FUNCTIONAL　HOST　COMPOUNDS　***－（6－ANILINO－β－CYCLODEXTRIN）

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Chinese Chemical Letters 1996年第3期7卷 207-210页

作者： Yu LIU Yi Min ZRANG Yun Ti chen (Department of Chemistry, nankai University, Tlanjin.300071) Department of Chemistry Nankai University Tianjin 300071

A novel β-Cyclodextrin derivative bearing mono-(6-anilino-β-cyclodextrin)(6-anilino-β-CD) was synthesised by a convenient method with 45% yield, and the hostcompound was charaCterized by 1H-NMR, FT-IR spetra and elemental analysis, etc. Thespectral titrations have been performed in aqueous solution (pH=7.20) to give the stabilityconstants and thermodynamic Parameters for the supramolecular system formation of someamino acids with host compound.

关键词： ENTHALPY-ENTROPY COMPENSATION CALORIMETRIC TITRATION INCLUSION COMPLEXATION MOLECULAR RECOGNITION CYCLODEXTRINS THERMODYNAMICS

Biochemical analysis of argyrophilic nonhistone proteins in chromosomes of plant Triticum aestivum

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Chinese Science Bulletin 1997年第17期42卷 1476-1481页

作者： PENG Yongkang, YU Jianchun, JIN Shaobo, ZHAO Jian, SONG Wenqin and chen RuiyangDepartment of Biology, nankai University, Tianjin 300071, China Department of Biology Nankai University Tianjin 300071 China

IN the late 1970s, biochemical analysis and electron microscopy of isolated, histone-depleted mitotic chromosomes demonstrated the existence of a central scaffold consisting mainly of nonhistone proteins (NHPs) in metaphase chromosomes. Subsequently, by using silver impregnation techniques and light microscopy, Howell et al. showed the presence of an axial chromatid core in relatively intact chromosomes of mammals; this core is believed to be

关键词： plant chromosome nonhistone chromosomal protein argyrophilic protein mitotic synchronization Triticumaestivum.

Study on the kinetics of isomerization of some unsymmetrical bis(μ-alkylthio)hexacarbonyldiiron by NMR method

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Chinese Journal of Chemistry 1988年第1期6卷 21-28页

作者： ZHANG Qi-Yan ZHU cheng-Yue SONG Li-cheng chen Rong-Ti Y.T.chen Department of Chemistry,nankai University,TianjinLU Xiu-Qing LI Guo-Wei Institute of Elemento-organie Chemistry,nankai University,Tianjin Department of Chemistry Nankai University Tianjin Institute of Elemento‐organic Chemistry Nankai University Tianjin

The kinetics of the isomerization of（μ-PhCHS）(μ-RS)Fe（CO）（R=Me,Et）and（μ-PhCHS）(μ-t-BuS)Fe（CO）has been studied by conventional and dynamic NMR methods respec-tively.A possible mechanism for the reaction h... 详细信息

关键词： Study on the kinetics of isomerization of some unsymmetrical bis alkylthio)hexacarbonyldiiron by NMR method NMR

Study on the Biomimetic Oxidation Catalyzed by the Model Compound of Cytochrome P-450（VI）——The Influence of Substituent x in T（x-p）PMn（Ⅲ）Cl on the Hydroxylation of Alkane

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Chemical Journal of Chinese Universities 1988年第4期 53-60页

作者： Zhu Shenjie and Gu chen(Department of Chemistry, nankai University,Tianjin)

The influence of monosubstitution at phonyl rings in a series of T（x-P） PMn （Ⅲ）Cl （x = o , m , p-CH3, CH3O, Cl, Br, I, NO , o-NH2, p-（CH3）3C） on the biomimetic catalytic hydroxylation and chlorizaiton of cyclohexane with PhIO was studied. The yields of cyclohexanol and chlorocyclohexane increased with the electron-withdrawing ability of the substituent in this manganese complex. The fair linear correlations between the yields of cyclohexanol and para or ortho substituent constant are presented as:logYx/YH = 0.310p+0.03, logyx/YCH3 = 0.61σ0.07Es+0.05, But there are no linear correlations between the yields of chloro-cyclohexane and either para, ortho or meta substituent constants.

关键词： T(x-P)PMn(Ⅲ)Cl Cyclohexane Hydroxylation substituenteffects

Construction of a DNA library from chromosome 4 of rice(Oryza sativa)by microdissection

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Cell Research 1998年第4期8卷 285-293页

作者： MAO YING WEI SI YUAN LIANG WEN QIN SONG XIU LAN LI RUI YANG chen (Biology Department, nankai University, Tianjin 300071,China) Biology Department Nankai University Tianjin 300071 China

A simple method to create a chromosome-specific DNA library of rice, including microdissection, amplification,characterization and cloning, is described. Rice chromosome 4 from a metaphase cell has been isolated and amplified by the Linker Adapter PCR (LA-PCR). The PCR products were labeled as probes with DIG-11-dUTP using the random priming *** blot analysis with rice genomic DNA and specific RFLP markers demonstrated that the PCR products were derived from rice chromosome 4. A large library comprising over 100,000recombinant plasmid microclones from rice chromosome 4was constructed. Colony hybridization showed that 58% of the clones contained single or low-copy sequences and 42%contained repetitive sequences. The size of inserts generated by PCR ranged from 140bp to *** method will facilitate cloning of the specific chromosome DNA markers and important genes of rice.

关键词： Rice chromosome 4 DNA library microdissection LA-PCR