A conceptual approach to integrated coastal management

This paper focuses on the concept of Integrated Coastal Management (ICM) putting the theoretical basis of Chapter 17, Agenda 21 (UN Conference on Environment and Development, UNCED), in relation to the theoretical backgrounds on which the development of coastal area programmes have been founded. Reasoning leads us to think that the general system theory is the proper conceptual basis to stimulate ICM and that, in this theoretical context, integration is to be pursued between (i) the claiming of national maritime jurisdictional belts and the protection of the coastal ecosystem, (ii) the coastal system and its external environment, (iii) the decision making systems acting at all levels (international, regional, national and local). Integration, therefore, should be thought of as a political process.

四种海洋生物的化学成分及其生物活性研究

从海洋动植物中寻找和筛选具有药用价值的活性先导化合物是海洋药物研发极为重要的理论基础研究。基于中国东南热带和亚热带沿海海域丰富的生物资源，本工作以化学分析和生物活性筛选为导向，以黄海海域习见的绿藻束生刚毛藻、南海三亚附近海域的圆裂短足软珊瑚、海绵Pseudoceratina sp.及广西沿海滩涂的盐生植物海刀豆四种海洋生物为样品，应用现代分析和检测手段对其次生代谢产物及其生物活性进行较系统的研究。 综合利用现代色谱手段和波谱技术，从上述目标生物样品中共分离并结构鉴定化合物74个，其中新化合物10个，新天然产物1个，这一新发现原则性结果，属国内外首次报道。1.对黄海海域束生刚毛藻C. fascicularis的化学成分及其生物活性进行了首次研究，从中得到叶绿素类新化合物Porphyrinolactone 1和新天然产物 20-Chlor-(132-S)-hydroxyphaeophytin a 2，在避光条件下对叶绿素类化合物进行体外NF-κB活性抑制筛选实验, 结果表明化合物1-6对NF-κB都有显著的抑制活性；对叶绿素类化合物首次进行体外蛋白酶体ChT-L的抑制活性实验筛选,化合物2和4对蛋白酶体ChT-L表现出显著的抑制活性，在浓度为50μM时，抑制率分别为70%和73.5%，并对其立体构型和生物活性的构效关系进行探讨；首次从该属得到环阿尔廷三萜类化合物7—12；对所得化合物7—15在浓度为1μg/mL时对肿瘤细胞部分靶蛋白酶的抑制活性测定结果表明，这些化合物对不同的靶蛋白酶表现出较强的抑制活性。2. 从南海圆裂短足软珊瑚中发现孕甾及其糖苷类新化合物22—27。3. 南海海绵Pseudoceratina sp.中发现溴代酪氨酸生物碱类新化合物41—42，组胺酸生物碱类新化合物43，并对其生源关系进行探讨。4. 首次对海刀豆C. maritime的化学成分进行研究，发现紫檀素类化合物61—63，异黄酮4个64—67；对该类化合物61—67首次进行NF-κB和蛋白酶体ChT-L的抑制活性筛选，其中化合物63表现出较强的NF-κB的抑制活性。

AUV长基线系统海上应用中若干问题分析

对"CR-02"6 000 m自治水下机器人长基线声学定位系统海上试验中的若干问题从理论上进行分析和计算,并提出了解决方案。海上试验证明了方法的有效性和可靠性,为进一步的试验及应用积累工程经验。

微功耗海底地震仪的研制

Our motherland has large area of maritime space. Searching and developing ocean becomes more and more important. So Ocean Bottom Seismometer (OBS) as an absolutely necessary equipment can be used in many oceanic fields. OBS not only is an important instrument for discovering structure of lithosphere of ocean bottom, but also plays a main role of oceanic geophysical exploration. The paper introduces my relational work. The MCI micro-power broad frequency seismometer was developed independently. Its power dissipation is less than 300mW. It has some merits including miniature volumeN light mass and cheap price. It is an ideal device not only for the collection high-resolution natural seismic data, but also for the fields of seismic sounding and engineering seismology. Many new high technique were applied to develop this instrument including over-sampling A/D converter, high performance 32bit Micro Process Unit and Flash memory with smart-media interface. Base on the achievement, I have accomplished the showpiece of OBS, which is applied to the deepwater oil and gas geophysical exploration. Because of micro-power dissipation, the seismograph and the sonar releaser can be integrated into a sphere cabin. By this means, the instrument's frequency of resonance and frequency of couple are improved obviously. The data acquisition system of OBS is improved from MCI seismometer. The capacity of flash memory is enlarge from 1G bytes to 8G bytes. The advance MPU in data acquisition system is used to integrate other function modules such as sonar, GPS, compass and digital transmitter.