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Acta Oceanologica Sinica 2011年第2期30卷 75-83页

作者： ZENG Ming FAN Dejiang SUN Xiaogong WANG Shuai YANG Zuosheng Key Laboratory of Ministry of Education for Submarine Geosciences and Technology OceanUniversity of China Qingdao 266100 China chinese academy of Meteorological {2. China Meteorological Adiministration Beijing100081 China

The grain-size of suspended particulate matter （SPM） in the Huanghe Estuary and its adjacent sea area was investigated with an in situ laser particle size analyzer （LISST-100） in November *** spatial distribution of the grain-size parameters was very *** results show that （1） the mean particle size of SPM ranged from 3.00Φ to 6.41Φ,with an average value of 4.66Φ;（2. the frequency distribution patterns of the SPM grain-size showed three different types,which were mono-mode,dual-mode and tri-mode,respectively;（3. C-M chart suggested that the transportation-processes of the SPM not only included suspended mode,but also the bed load transportation *** bed load transportation mode mainly occurred at the bottom *** characteristics and space distribution of SPM grain-size might be mainly controlled by sediment discharge of the Huanghe River,hydrodynamics condition,surface sediment types,and biological process within the study area.

关键词： the Huanghe Estuary grain-size of suspended particulate matter spatial distribution influence factor

Geochemistry of UHP metamorphic rocks from the CCSD-main hole （0 - 2.50 m）, Sulu orogenic belt, Eastern China

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Geochemistry of UHP metamorphic rocks from the CCSD-main hol...

Stereochemistry of the coupling step in photo-S_(RN) 1 reaction

2.04年全国岩石学与地球动力学研讨会

作者： Zhang Zeming, Xu Zhiqin and Liu Fulai~1, Xiao Yilin~2. Liou J G ( Dept. of Geological and Environmental sciences, Stanford University) and Jahn Bor-ming~3.(1. {2. of Geology, CAGS, {2. 10003. 2. Geoscience Center, Geottingen University 3. Department of Geosciences, National Taiwan University)

＜正＞ The chinese Continental Scientific Drilling （CCSD） located near Maobei village, about 17 km southwest of Donghai, is targeted to drill a 5000-meter-deep main hole penetrating a tectonic slab of UHP metamorphic rocks. This project provides an advantageous and rare chance of collecting UHP rock samples continuously from the subsurface. The 0-2.50 m of the CCSD-main hole consists of eclogite, orthogneiss, paragneiss, ultramafic rock and minor schist and quartzite. Eclogites are the principal lithological type, and mainly occur at

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chinese Journal of Chemistry 1992年第3期10卷 253-261页

作者： WU, Bi-Qi ZENG, Fan-Wen ZHAO, Yong WU, Guo-Sheng Shanghai institute of Organic Chemistry, chinese academy of sciences, Shanghai 2.00{2. Shanghai institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032

The photo-S_(RN) 1 reaction of (+)-camphor and aryl halides was investigated in order to estimate the stereochemistry of the coupling step of aryl radicals with a nucleophile. The ratio of endo to exo products determined by ~1H NMR and CD spectra was found to be 99:1. MNDO calculations of the orbital parameters showed a favorable one-sided overlap of the enolate ion with the SOMO of aryl radical. In addition, fragmentation of (ArX)^- was found to be related to the energy of SOMO of (ArX)^-.

关键词： Ph Stereochemistry of the coupling step in photo-S reaction RN

Cytological identification of an isotetrasomic in rice and its application to centromere mapping

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Cell Research 1997年第1期7卷 31-38页

作者： CHENG ZHU KUAN HENG XIU YU CHANG JIE YAN LI HUANG ZHU MING HONG GU(Department of Agronomy, Agriculture College, Yangzhou University, Yangzhou 2.5009)(institute of Genetics, chinese academy of sciences,{2. 100101) institute of Genetics Chinese Academy of Sciences Beijing 100101

The aneuploid with isochromosome or telochromosome is ideal material for exploring the position of centromere in lingkage map. FOr obtaining these aneuploids in rice, the primary trisomics from triplo-1 to triplo-12.and the aneuploids derived from a triploid of indica rice variety Zhongxian 3.3. were carefully investigated. From the offsprings of triplo-10, a primary trisomic of chromosome 10 of the variety, an isotetrasomic "triplo-10-1" was obtained. Cytological investigation revealed that a pair of extra isochromosomes of triplo-10-1 were come from the short arm of chromosome 10. In the offsprings of the isotetrasomic, a secondary trisomic "triplo-10-2. 5 in which the extra- chromosome was an isochromosome derived from the short arm of chromosome 10, was identified. With the isotetrasomic, secondary trisomic, primary trisomic and diploid of variety Zhongxian 3.3., different molecular markers were used for exploring the position of the centromere of chromosome 10. Based on the DNA dosage effect, it was verified that the molecular markers G112., G3.3.and L169 were located on the short arm, G1084 and other 16 available molecular markers were on the long arm of chromosome 10. So the centromere of chromosome 10 was located somewhere betweenG112. and G1084 according to the RFLP linkage map given by Kurata et al[1]. The distance from G112. to G1084 was about 3.2.M.

关键词： Rice isotetrasomic centromere mapping

水体中痕量挥发性有机物单体碳同位素组成分析

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色谱 2004年第4期22卷 439-441页

作者：刘国卿张干黄世卿彭先芝陈鸿汉中国科学院广州地球化学研究所有机地球化学国家重点实验室广东广州510640 长沙航空职业技术学院湖南长沙410014 中国地质大学(北京)环境科学院北京100083

将固相微萃取 (SPME)技术与冷阱富集系统相结合 ,对水体中痕量挥发性有机物进行了单体碳同位素分析 ,方法检测限较常规SPME提高了一个数量级。在优化的条件下 ,对 2.0 μg/L的三氯乙烯 /四氯乙烯和 10 μg/L的苯/甲苯水溶液进行了单体... 详细信息

将固相微萃取 (SPME)技术与冷阱富集系统相结合 ,对水体中痕量挥发性有机物进行了单体碳同位素分析 ,方法检测限较常规SPME提高了一个数量级。在优化的条件下 ,对 2.0 μg/L的三氯乙烯 /四氯乙烯和 10 μg/L的苯/甲苯水溶液进行了单体碳同位素分析 ,相比于纯溶剂 (液相 )碳同位素值 ,顶空 (气相 )同位素分析误差不超过0 5‰ ,而样本标准偏差为 0 3.。对某受四氯乙烯污染的北京地下水进行了同位素测定 ,近污染源点 (B4 0 8)与远污染源点 (B2.3. )四氯乙烯的碳同位素值 (δ13.C)分别为 - 3. 8‰和 - 3. 4 5‰ ,δ13.C变重表明四氯乙烯在地下水中可能发生生物降解或化学反应过程。通过比较不同厂家的苯、甲苯、三氯乙烯和四氯乙烯的δ13.C发现 ,同一试剂不同厂家的δ13.C存在明显差异。该法简单、灵敏度高 ,适用于水体中痕量挥发性有机污染物的同位素组成测定。

关键词：单体同位素分析固相微萃取冷阱挥发性有机物地下水

Applications of nonlinear optimization methods to quantifying the predictability of a numerical model for El Nino-Southern Oscillation

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Progress in Natural Science:Materials International 2005年第10期 53-59页

作者： DUAN Wansuo and MU Mu (LASG,institute of Atmospheric Physics, chinese academy of sciences, {2. 10002., China)

The nonlinear optimization methods are applied to quantify the predictability of a numerical model for El Nino-Southern Oscillation (ENSO). We establish a lower bound of maximum predictability time for the model ENSO events (i. e. ENSO events in the numerical model), an upper bound of maximum prediction error, and a lower bound of maximum allowable initial error, all of which potentially quantify the predictability of model ENSO. Numerical results reveal the phenomenon of "spring predictability barrier (SPB) for ENSO event and support the previous views on SPB. Additionally, we also explore the differences between the linear evolution of prediction error and its nonlinear counterpart. The results demonstrate the limitation of linear estimation of prediction error. All these above results suggest that the nonlinear optimization method is one of the useful tools of quantifying the predictability of the numerical model for ENSO.

关键词： ENSO model nonlinear optimization predictability.

Synthesis of(±)-Deoxyschisandrin and the Corresponding Trans-lsomer

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chinese Chemical Letters 1996年第9期7卷 801-802页

作者： Jun Biao CHANG(Henan institute of Chemistry,Zhengzhou,450003.Jing Xi XIE(institute of Materia Medica,{2. {3. of Medical sciences and Peking Union Medical College,beijing,100050)

Deoxyschisandrin 1 and the corresponding trans - isomer 2.were readily prepared by intramolecular oxidative coupling of 1.4 -diaryl-2.3.dimethylbutanes 7 and 6 with 2.3.dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in t... 详细信息

关键词： Synthesis of Deoxyschisandrin and the Corresponding Trans-lsomer

Right prefrontal laterality of chinese boys during a chinese {2. conflict Stroop task measured by multi-channel near-infrared spectroscopy imaging

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Progress in Natural Science:Materials International 2007年第9期17卷 1023-1028页

作者： Liu Jiacheng1,Bai Jing1,Peng Miao2.Fan Xiaofei1 and Guo Qiyong3.1.Department of Biomedical Engineering,Tsinghua University,beijing 100084,China 2.Department of Electroneurophysiology,the Sixth Hospital of Peking University,beijing 100085,China 3.Department of Radiology,The Second Hospital of China Medical University,Shenyang 110003.China) Department of Biomedical Engineering Tsinghua University Beijing 100084 China 2. Department of Electroneurophysiology the Sixth Hospital of Peking University Beijing 100085 China 3. Department of Radiology The Second Hospital of China Medical University Shenyang 110003 China

Some studies have shown that native chinese speakers have different laterality in matched Stroop tasks from native English ***,many imaging data,which show left laterality of English-matched Stroop interference,have been *** a few functional imaging studies have been conducted to investigate the phenomenon of the chinese version of Stroop *** this study,functional activity in the lateral prefrontal cortex of a group of normal chinese boys with functional near-infrared imaging during a Stroop color-word task was measured to show different Stroop interferences in the prefrontal *** results show obvious fluctuation of the cerebral blood volume in the right prefrontal cortex in all boys,which agrees with the finding of previous studies,that is,chinese native boys have right laterality in their brain when the chinese version of Stroop color-word task is applied.

关键词： laterality Stroop effect prefrontal cortex near-infrared

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太湖波动特征分析

水动力学研究与进展（A辑） 2004年第5期19卷 664-670页

作者：罗潋葱秦伯强胡维平季江张发兵中国科学院南京地理与湖泊研究所

　浅水湖泊中,富营养化程度除了依赖于外源输入外,内源释放亦是举足轻重,而底泥中的内源释放主要源于风强迫作用下形成的水面波动和底层湖流产生的剪切作用,并且波浪产生的切应力远大于底层湖流产生的切应力。此外,湖岸边界处的波浪作... 详细信息

　浅水湖泊中,富营养化程度除了依赖于外源输入外,内源释放亦是举足轻重,而底泥中的内源释放主要源于风强迫作用下形成的水面波动和底层湖流产生的剪切作用,并且波浪产生的切应力远大于底层湖流产生的切应力。此外,湖岸边界处的波浪作用够侵蚀岸堤,造成泥沙堆积而由此导致航道淤积,波浪作用引起的对水体中营养盐的水平和垂直输送会造成整个湖体中不同地区的水质差异,这也是太湖蓝藻水华爆发具有季节性和区域性的原因之一。本文基于在太湖北部、中部和南部利用波浪仪所观测的数次波浪数据,分别计算了平均波、有效波和1 10大波的周期、波高和波长及其由波浪产生的切应力,并利用验证后的浅水波浪模式,对太湖中冬、夏季盛行风作用下的易悬浮区域做了计算,发现夏季东南风作用下,西北沿岸带由其水浅和风的吹程较大而易引起的底泥悬浮,而冬季受西北风影响时易悬浮区域位于太湖东南部。

关键词：波浪切应力再悬浮太湖

MULTILEVEL CORRECTION FOR COLLOCATION SOLUTIONS OF VOLTERRA NONL INEARINTEGRO-DIFFERENTIAL EQUATIONS

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Systems Science and Mathematical sciences 2000年第2期13卷 170-180页

作者： HU Qiya (institute of Computational Mathematics and Scientific/Engineering Computing, chinese academy of sciences, {2. 100080 institute for Computing Mathematics and Applied Mathematics, Xiangtan University, Hunan 411105, China) PENG Long (School of 中科院计算数学与科学工程计算所北京 100080 北京外国语大学国际商学院北京 100081

In this paper we give a complete analysis of the convergence acceleration method for collocation solutions of Volterra nonlinear integro-differential equations with smooth kernels. It will be shown that when continuous piecewise polynomials of degree m are used and collocation is based on the Lobatto points, the first derivative of this collocation approximation admits, at the knots, an error expansion in even powers of the step-size h, beginning with a term in h2.. On the basis of this expansion we show that when a correction procedure is applied to this collocation approximation for k times, the global accurary of the corresponding corrected approximation will be increased to O(h2.(k+1)).

关键词： Nonlinear integro-differential equation collocation solution error expansion multilevel correction.