Cultivation of marine sponges   总被引：3，自引：0，他引：3  

曲翊 张卫李华  虞星炬 《中国海洋湖沼学报》2005,23(2):194-198

Sponges are the most primitive of multicellular animals, and are major pharmaceutical sources of marine secondary metabolites. A wide variety of new compounds have been isolated from sponges. In order to produce sufficient amounts of the compounds of the needed, it is necessary to obtain large amount of sponges.The production of sponge biomass has become a focus of marine biotechnology.  相似文献   

土层随机地震反应的动力可靠度计算     

门玉明  黄义 《地球科学与环境学报》2002,24(1):43-45

研究了土层的随机地震反应分析方法 ,建立了基岩输入地震动加速度功率谱函数为白噪声和过滤白噪声时土层的动力可靠度计算理论  相似文献   

A Catalog of Luminous Infrared Galaxies in the IRAS Survey and Second Data Release of SDSS     

Chen Cao  Hong Wu  Jian-Ling Wang  Cai-Na Hao  Zu-Gan Deng  Xiao-Yang Xia  Zhen-Long Zou National Astronomical Observatories  Chinese Academy of Sciences  Beijing  Graduate School of Chinese Academy of Sciences  Beijing College of Physical Sciences  Graduate School of Chinese Academy of Sciences  Beijing Department of Physics  Tianjin Normal University  Tianjin 《中国天文和天体物理学报》2006,6(2):197-209

We selected a sample of luminous infrared galaxies by cross-identification of the Faint Source Catalogue (FSC) and Point Source Catalogue (PSC) of the IRAS Survey with the Second Data Release of the SDSS. The size of our sample is 1267 for FSC and 427 for PSC by using the 2σ significance level cross-section. The "likelihood ratio" method is used to estimate the individual's reliability and for defining two more reliable subsamples (908 for FSC and 356 for PSC). A catalog of infrared, optical and radio data is compiled and will be used in further work. Some statistical results show that luminous infrared galaxies are quite different from ultra-luminous infrared galaxies. The AGN fractions of galaxies at different infrared luminosities and the radio-infrared correlations are consistent with the previous studies.  相似文献   

The Relationship between the Rise Width and the Full Width of γ-ray Burst Pulses and Its Implications     

Rui-Jing Lu  Yi-Ping Qin  Ting-Feng Yi 《中国天文和天体物理学报》2006,6(1)

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REDUCED GROWTH IN HYBRID TILAPIA (OREOCHROMIS MOSSAMBICUS×O. NILOTICUS) AT INTERMEDIATE STOCKING DENSITY     

王岩  崔奕波  杨云霞  蔡发盛 《中国海洋湖沼学报》2002,20(4)

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No evidence for a different accretion mode for all 3CR FR I radio galaxies     

Xinwu Cao  Steve Rawlings 《Monthly notices of the Royal Astronomical Society》2004,349(4):1419-1427

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箭竹生长及开花的气象条件研究     

胡毅  向卫国  朱克云  林若钟  王金锡  汪万江 《成都信息工程学院学报》1997,(3)

通过对我国历史上箭竹开花及王朗自然保护区箭竹生长气象条件的研究认为，箭竹开花多在冬暖夏凉的年份；箭竹的生长量可由气象因素的变化来进行预测。研究结果可为保护大熊猫提供一定的气象依据。  相似文献   

海平面上升与中国沿海地区的可持续发展     

韩慕康  邬伦  刘岳峰  刘毅  尹晓露 《地球信息科学学报》1997,(2):51-54

本文简明地分析了海平面上升的概念,同时提出了需预测防治对策的三个问题,即在空间上要扩大海岸防灾和管理的范围;在时间上要有足够的预见性;同时纳入沿海中长期经济规划中去。  相似文献   

The Relationship between the Rise Width and the Full Width of-λ-ray Burst Pulses and Its Implications     

Rui-Jing Lu Yi-Ping Qin Ting-Feng Yi 《中国天文和天体物理学报》2006,6(1):52-60

  相似文献   

会计电算化在测绘单位管理中的组织与实施     

孙毅 《地理信息世界》2002,(2)

会计基础工作是财会工作的基本环节 ,是经济管理的重要基础。实现会计电算化对于加强会计基础工作 ,保证财会工作科学有效地进行 ,减少工作误差 ,实现会计工作现代化操作及现代化管理具有现实意义  相似文献