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Ultrastructure　study　of　the　diatom──Ⅱ．Synedra，Cyclophora，Plagiogramma，Opephora，Fragilaria　and　Pseudostaurosira

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Acta Oceanologica Sinica 1994年第4期13卷 579-588页

作者： Liu Shicheng (department of Biology, xiamen university,{2., China)

Six genera and thirteen species of diatoms are collected from the intertidal zone of Xisha Islands,Hainan Province, and observated under the transmitted light microscopy (LM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). of them, four new species, and one genus are newly recorded (marked).They are: Synedra cyclophoroides sp. nov., Cycolophora tenuis, Plagiogramma parva sp. nov., Plagiogramme pandurata sp. nov., P. atomus, P. reimeri, Opephora elliptica sp. nov. O. martyi, O. olsenii,O. sp. Fragilaria brevistriata v. elliptica; F. construens and Pseudostaurosira brevistriata.

关键词： Diatom Ultrastructure Synedra Cyclophora Plagiogramma Opephora Fragilaria Pseudostaurosira.

Studies on the role of marine bacteria in the upwelling ecosystem——Ⅰ.Bacterial biomass in the upwelling regions

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Acta Oceanologica Sinica 1993年第2期12卷 261-272页

作者： Zheng Tianling, Cai Lizhe and Jiang Xianquan Environmental Science Research Center, xiamen university, xiamen 361005, China {2. of Oceanography, xiamen university, xiamen 361005, China

-Six cruises were carried out off the south bank of Fujian - Taiwan during the period of December 2., 1987 to November 15, 1988 to estimate the contribution of bacterial biomass carbon (BBC) to the totai particulate organic pools using epifluorescent microscopic technique. The results show that the standing crop of bacteria fluctuated from 0. 95 to 66. 60 mg /m3 (dry weight). Upwelling phenomena appeared in the region around Nanpeng Island in summer while in the region of Waixie in all seasons. The average value of BBC was 2.. 60(±6. 08)mg/m3and 2.. 32.(±2. 34) mg/m3 respectively. The seasonal and spatial distribution is discussed in relation to environmental factors as well as upwelling phenomena. The role of bacteria in the flow of material and energy in the upwelling ecosystem is emphasized.

关键词： Marine bacteria upwelling ecosystem

An Application of VAR System for Investment Model

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厦门大学学报（自然科学版） 2002年第S1期41卷 241-242页

作者： ZHONG Song-ting, HUANG Guo-shi (department of Automation, xiamen university,{2., China)

By the reality of investment in China, a fished inv es tment model is obtained and modified by Hicks multiplicator-accelerator model. It preferable explains the status quo of investment in China. In China, The valu e of investment in period t is not only having relation to the investment of per iod t-1 and Gross Domestic Products of period t-1 (as the model of Hicks and S amuelson described) but also having some relation to the investment of period t -*** is the reason that the model of Hicks or Samuelson can’t use in China d irectly. Then the model is analyzed by VAR(Vector Autoregressive) system. The VA R is a new model of macro-economics measurement. The advantage of VAR is that i t is avoid some complex problems as measuring off the endogenous variable and ex ogenous variable and the identifiability of model. It is composed of some dynami c equations. And it regards all the variables in equations as endogenous variabl es. By using statistical data in China a model about Gross Domestic Product and Investment is obtained and a forecasting is designed. The correlation is cal culated using Matlab. The results of the correlation of Gross Domestic Products, Investment and Consumption can analyze the rationality of policy of country and forecast the trend of economics. And it is profitable for exactly understand th e circumstance of investment. The shortage of this paper is that the gross of st atistical data is too small, only the data after the year of 1978 is available.

关键词： VAR fished project investment forecast

SYNTHESIS OF POLYCATECHOL WITH ELECTROCHEMICAL ACTIVITY AND ITS PROPERTIES

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Chinese Journal of Polymer Science 2002年第6期20卷 517-524页

作者： Yong Kong Shao-lin Mu Bing-wei Mao department of Chemistry School of Sciences, Yangzhou university Yangzhou 2.5002. China State Key Laboratory of Physical Chemistry of the Solid Surface,{2.,xiamen 361005, China Yangzhou Univ Sch Sci Dept Chem Yangzhou 225002 Peoples R China xiamen Univ State Key Lab Phys Chem Solid Surface Xiamen 361005 Peoples R China

The electrochemical polymerization of catechol on platinum has been carried out using repeated potential cycling between -0.2.and 1.1 V (versus SCE). The electrolytic solution consisted of 0.2.mol dm(-3) catechol, 0.5 mol dm(-3) NaCl and 0.1 mol dm(-3) Na2.PO4 with pH 8.72. Catechol can not be polymerized at pH greater than or equal to 10.12. Polycatechol has an electrochemical lactivity at pH less than or equal to 4. The anodic and cathodic peak potentials of polycatechol shift towards more negative values as the pH of the solution increases from 1 to 4. The electrochemical activity of polycatechol hardly changes in this pH region, but it decreases slowly with time. This is caused by oxygen in air, which leads to an irreversible oxidation of polycatechol. This property is favorable for protecting metals from corrosion. Raman and FTIR spectra of polycatechol and catechol are quite different. AFM images of polycatechol films provide evidence that the image of the oxidized state of polycatechol is markedly different from that of the reduced one. This difference is caused by doping and dedoping of polycatechol.

关键词： catechol polycatechol electrochemical activity Raman spectra FTIR spectra AFM images

TOTAL SYNTHESIS OF(+)-7-EPI-GONIDFUFURONE

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Chinese Chemical Letters 1993年第6期4卷 483-484页

作者： Zhao Hui ZHOU department of Chemistry,xiamen {2.,xiamen 361005

First total synthesis of natural styryl-furone,(+)-7-epi- goniofufurone 1,from D-glycero-D-gulo-heptono-γ-lactone in eight steps(13% overall)is *** absolute stereochemistry of 1 is confirmed.

关键词： EPI-GONIDFUFURONE TOTAL SYNTHESIS OF THF

Preliminary study on nanodiatom in the Taiwan Strait

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Acta Oceanologica Sinica 2000年第1期19卷 91-98页

作者： Guo Jian Huang Bangqin Cheng Zhaodi Hong Huasheng (1. department of Biology, xiamen university,{2., China. 2. Research Lab of SEDC on Marine Ecological Environment, Environmental Science Research Center, xiamen university,{2., China. department of Biology Xiamen University Xiamen 361005 China Res. Lab. SEDC Mar. Ecol. Environ. Environ. Science Research Center Xiamen University Xiamen 361005 China

The preliminary study on nanodiatom in the Taiwan Strait was carried out using transmission electron microscopy (TEM) in February 1995. Thirty-three species of nanodiatom (2. μm) were identified, among which, 6 were new recorders in China. The dominant species were Minidiscus comicus Takano and Thalassiosira tenera Proschdinae -- Lavrenko in the northern Taiwan Strait (NTS), Minidiscus trioculatus (F. J. R. ) Hasle and Natvicula climacospheniae both in the southern Taiwan Strait (STS). Abundance of nanodiatom was much more than that of microdiatom (>2. μm), and the abundance of nanodiatom in NTS is higher than that in STS. The highest abundance of nanodiatom was at the depth of 10 m of N33o in NTS, while at the depth of 2. m of S105 in STS. The vertical distribution of nano- and micro-diatom of NCI showed that the peak was at the depth of 30 m.

关键词： Nanediatom Taiwan Strait abundance species diversity

Simultaneous Determination of Fluorescein, Rhodamine 6G and Rhodamine B in Turbid Solution by Polarization Variable-Angle Synchronous Fluorescence Spectrometry

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Chinese Chemical Letters 2000年第7期11卷 613-614页

作者： Yao Qun LI Fang QIAN Xian Zhi HUANG(department of Chemistry and Key Laboratory of Analytical Sciences of the Ministry of Education,xiamen {2., xiamen 361005) xiamen Univ Dept Chem Xiamen 361005 Peoples R China xiamen Univ Key Lab Analyt Sci Minist Educ Xiamen 361005 Peoples R China

Polarization variable-angle synchronous fluorescence spectrometry was proposed to determine samples in turbid solution. A mixture of fluorescein, rhodamine 6G and rhodamine B was used to evaluate the technique. The background caused by scattering light was decreased remarkably. The limits of detection were 0.6 ng/ml for fluorescein, 2.3 ng/ml for rhodamine 6G and 4.1 ng/ml for rhodamine B, respectively.

关键词： variable-angle synchronous fluorescence polarization fluorescein rhodamine 6G rhodamine B

A New Chiral Synthesis of Naturally Occurring (-)-(S)-4-Hydroxy-2.pyrrolidinone

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Chinese Chemical Letters 1999年第9期10卷 735-736页

作者： Pei Qiang HUANG Xiao ZHENG Shi Li WANG Jian Liang YE Li Ren JIN(department of Chemistry, xiamen university, {2., Fujian 361005) xiamen Univ Dept Chem Fujian 361005 Peoples R China

A new and convenient chiral synthesis of naturally occurring (-)-(S)-4-hydroxy-2.pyrrolidinone from (S)-malic acid was reported.

关键词： (S)-malic acid (-)-(S)-4-hydroxy-2.pyrrolidinone ionic hydrogenation

An Analysis Pattern for Equipment Management

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厦门大学学报（自然科学版） 2002年第S1期41卷 282-283页

作者： WANG Zhou-jing, HU Hui-rong (department of Automation, xiamen university,{2., China)

In this paper, we account for this subject: how to de sign a pattern, it can track the state of the equipment of some organizations su ch as enterprise, organ, laboratory, school etc. We present an analysis pattern, which describes the whole procedure of managing the equipment and record the us ing of the equipment. It not only can track the quantity and location of the equ ipment of the whole organization, the more important is it can update the state of the equipment at real-time automatically. First,we design the static diagram(i.e. using UML class diagram to describe the basic state of the equipment). Then we consider its dynamic aspect, i.e., how th e state of the equipment to get changed according to the time. We use UML sequen ce diagram and state diagram to respectively describe the procedure of after pur chasing, transferring and discarding as useless of the equipment. Obviously, the manager can update the quantity and location of the equipment automatic ally. We character this pattern from the following five aspects: Problem: How the enterprise, organ, laboratory and school to track the quantity and location of the equipment. Circumstance: In some organizations, especially, in the manufactory or laborator y, when the number of the quantity and type is large or the distribution of the equipment is dispersed, they want to be able to track the quantity and location of the equipment. Forces: First, it is possible to the equipment be transferred or be discarded, n o matter when and where, the organization must be able to track the factual quan tity and ***, the solution must describe a basic semantic unit, that is, the solution must simple enough to apply it to various of circumstance, whi ch is the base of reusing. Third, the solution must include the interpret of the factual document. Solution: This part, we start with the basic demands, first using UML class diag ram to describe the basic pattern, which is an atomic pattern. Then using UML se que

关键词： analysis pattern SAP UML class diagram sequen ce diagram state diagram