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ON THE DEVELOPMENT OF COASTAL VEGETATED WETLANDS IN china

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Journal of Geographical Sciences 1996年第3期6卷 55-65页

作者： Yang Shilun Chen Jiyu(state key Lab of Estuarine and Coastal ResearchInstitute of Estuarine and Coastal Research, East china Normal university, Shanghai 200062People’s Republic of china)

This paper discusses in detail the distributions, plant charactenstics and environmental conditions of the coastal vegetated wetlands in china. In contrast to most of fhe European and American salt marshes where Spartina is dominant, the china's ones are dominated by Suaeda in area. Given a great amount of fine sediments by rivers, china's coastal wetlands are accumulated rapidly. Ths factor combined with the human's ruthless reclaimation makes the marshes inmature. The vegetated wetlands are classified into four types, each having differential features in geomorphological background, deposits and vegetation.

关键词： coastal wetland salt marsh mangrove china

Research on crystal growth and properties of a new nonlinear optical crystal:Bismuth borate BiB_3O_6

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Chinese Science Bulletin 2001年第21期46卷 1783-1785页

作者： TENG Bing, WANG Jiyang, WANG Zhengping, JIANG Huaidong, SONG Renbo, LIU Hong, HU Xiaobo, LIU Yaogang, WEI Jingqian & SHAO Zongshustate key laboratory of Crystal Materials, Shandong university, Ji’nan 250100, china state key laboratory of Crystal Materials Shandong University Ji’nan China

BiB3O6 (BIBO) single crystals with sizes of 44 mm × 24 mm × 10 mm and weight of 24.7 g have been successfully grown by the top-seeded method. In this note, the preparation of seed, the growth of crystal and some problems encountered are reported. The lattice parameters of BIBO are a =7.1203(7)A, b = 4.9948(7)A, c = 6.5077(7)A, β= 105.586(8) ", V=222.93(5)A3, which were determined by BRUKER-P4 four-circle diffractometer. BIBO is biaxial crystal and the relative orientation of (X, Y, Z) with regard to (a, b, c) is: X|| b, (Y, c) =47.2°, (Z, a) = 31.6°, determined by the X-ray analysis combined with polarized microscopy. The second-harmonic-generation (SHG) conversion efficiency of the sample for 1.064 μm light is up to 67.7%. We have also obtained the third harmonic generation (THG) of 1.064 μm, namely, 1.064 μm + 0.532 μn →0.355 μm. BIBO crystal is free of moisture and hygroscopy.

关键词： BiB3O6 nonlinear optical crystal crystal growth trans-mittance crystal orientation.

MICROSPORE AND TAPETUM REGULATOR 1 encodes a secretory fasciclin glycoprotein required for male reproductive development in rice

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MICROSPORE AND TAPETUM REGULATOR 1 encodes a secretory fasci...

A method of video analysis in vehicle based on a single PAL camera

第十三届全国植物基因组学大会

作者： Hexin Tan~1,Wanqi Liang~(1,2),Jianping Hu~3,Dabing Zhang~(1,2*) 1 state key laboratory of Hybrid Rice,School of Life Sciences and Biotechnology,Shanghai Jiao Tong university,Shanghai 200240,china 2 Bio-X Center,key laboratory of Genetics & Development and Neuropsychiatric Diseases, Ministry of Education,Shanghai Jiao Tong university,Shanghai 200240,china 3 Michigan state university-Department of Energy Plant Research laboratory,Michigan state university,East Lansing,Michigan 48824

In flowering plants,formation of the haploid male gametophytes in anthers requires the interaction between reproductive cells and the neighboring somatic cells,yet the underlying mechanism remains poorly ***,we reveal the crucial role of a fasciclin glycoprotein,MICROSPORE AND TAPETUM REGULATOR1(MTR1),in controlling the development of sporophytic and reproductive cells in rice(Oryza

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A method of video analysis in vehicle based on a single PAL ...

The New Form of Time-Dependent Mild Slope Equation for Random Waves

2010亚洲光电子会议光学设计和检验分会场

作者： Yi Yang *a Guo Yu b Jian Bai b a School of Information and Electronic engineering Zhejiang university of Science and Technology Hangzhou 310023 china b state key laboratory of Modern Optics and Instrument Zhejiang university Hangzhou 310027 china

In this paper,we proposed a video analysis system in a vehicle using Panoramic Angular Lens（PAL） *** system consists two parts:one is using a PAL camera which is installed on the top of the vehicle to obtain obstacle position and compute the distance from the vehicle;the other is to configure a PAL camera inside the vehicle,which can provide the driver’s face pose and eye status information as well as the driver’s viewing scene,then several image algorithm are applied to analyze the status of driver and detect the object in front of the *** contribution is that the large field view of PAL camera is well used in the application of Intelligent Transportation System,and to research the vehicle and driver information at the same time with a single panoramic *** the system was very simple.

关键词： Panoramic Annular Lens(PAL) Vehicle Dynamic Panoramic Map(VDPM) Object Detection

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china Ocean engineering 1995年第4期10卷 387-394页

作者： Zhang Yonggang , Li Yucheng Teng Bin Doctor Degree Candidate, The National key laboratory of Coastal and Offshore engineering, Dalian university of Technology, Dalian 116023Professor, The National,key laboratory of Coastal and Offshore engineering, Dalian university of Technology, Dalian 116023Associate Professor, The National key laboratory of Coastal and Offshore engineering, Dalian university of Technology, Dalian 116023

The mild-slope equation derived by Berkhoff (1972), has widely been used in the numerical calculation of refraction and diffraction of regular waves. However, it is well known that the random sea waves has a significant effect in the refraction and diffraction problems. In this paper, a new form of time-dependent mild slope equation for irregular waves was derived with Fade approximation and Kubo's time series concept. The equation was simplified using WKB method, and simple and practical irregular mild slope equation was obtained. Results of numerical calculations are compared with those of laboratory experiments.

关键词： random wave mild slope equation Fade approximation WKB method simulation

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干湿路径影响粉土小应变剪切模量的试验研究

岩土力学 2015年第S1期36卷 377-381页

作者：徐洁周超河海大学岩土力学与堤坝工程教育部重点实验室江苏南京210098 河海大学岩土工程研究所江苏南京210098 香港科技大学土木与环境工程学系

天然土尤其是地表浅层土常处于非饱和状态,其小应变剪切模量是预测地基变形及土工结构物动力反应的一个重要参数。通过对非饱和压实粉土三轴样进行弯曲元试验,研究了吸力和干湿路径对其小应变剪切模量的影响。试验结果表明,非饱和压实... 详细信息

天然土尤其是地表浅层土常处于非饱和状态,其小应变剪切模量是预测地基变形及土工结构物动力反应的一个重要参数。通过对非饱和压实粉土三轴样进行弯曲元试验,研究了吸力和干湿路径对其小应变剪切模量的影响。试验结果表明,非饱和压实粉土样的小应变剪切模量各向异性忽略不计;小应变剪切模量G0(vh)、G0(hh)和G0(hv)均随吸力增大而非线性增大;同一吸力下不同干湿路径上的土样,饱和度不同,其小应变剪切模量随饱和度升高而减小,主要原因是土的平均骨架应力和土中毛细水的作用。根据试验结果对非饱和土小应变剪切模量的半经验公式进行了改进,同时考虑了吸力与饱和度的作用。

关键词：非饱和土小应变剪切模量弯曲元干湿路径吸力饱和度

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升华再结晶法制备AIN晶须及其生长特性

无机材料学报 1998年第4期13卷 477-483页

作者：周和平陈浩刘耀诚吴音清华大学材料科学与工程系新型陶瓷与精细工艺国家重点实验室北京100084

以AIN粉体为原料，加入适量的CaO-B2O3矿化剂，采用升华再结晶法制备AIN晶须．初步探讨了反应器及其合成温度对产物种类的影响，研究了晶须的结构特征及其生长机理．结果表明，初期的合成产物包括AIN晶柱、晶须和非晶AIN纤维，以VLS机... 详细信息

以AIN粉体为原料，加入适量的CaO-B2O3矿化剂，采用升华再结晶法制备AIN晶须．初步探讨了反应器及其合成温度对产物种类的影响，研究了晶须的结构特征及其生长机理．结果表明，初期的合成产物包括AIN晶柱、晶须和非晶AIN纤维，以VLS机制生长：后期产物为AIN晶须，表现为VS生长机制：XRD及TEM分析表明，晶须大多呈现沿｛2110｝、｛101l｝和｛0001｝，l＝0、1、2、3的晶面生长．多数晶须宏观生长轴向平行于这些晶面的法线，而部分晶须由于发生斜生长，导致宏观生长轴向与这些晶面的法线斜交．

关键词：氮化铝晶须升华再结晶法氮化铝陶瓷

A NEW SESQUITERPENE FROM CELASTRUS ANGULATUS

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Chinese Chemical Letters 1994年第1期5卷 51-54页

作者： Yan Hong WANG Yong Qiang TU Yao Zu CHEN (state key laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou university, Lanzkou, 730000)(Department of Chemistry. Zhejiang university, Hangzhou, 310027)

One new scsquiterpene polyol esters was isolated from the leaf ofCelastrus angulatus. Its structure was elucidated on the basis of UV, IR, mass, 1H-NMR, (13)C-NMR and 1H-(13)C long-range correlation spectroscopy as 1...

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Sequential Phosphorylation of Nedd1 by Cdk1 and Plk1 is required forγTuRC targeting to centrosome

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Sequential Phosphorylation of Nedd1 by Cdk1 and Plk1 is requ...