At present, the marine environment is faced with extremely serious eutrophication. The kelp＇s ability of taking in nitrogen and phosphorus can be fully performed so that the eutrophication problem can be effectively ...At present, the marine environment is faced with extremely serious eutrophication. The kelp＇s ability of taking in nitrogen and phosphorus can be fully performed so that the eutrophication problem can be effectively treated and solved. Based on the analysis of kelp＇s absorption of nutritive salt from aquaculture sewage, this paper further explores the bioremediation of kelp in aquaculture sea area with eutrophication in the hope of providing valuable reference for the aquaculture industry of BohaiSea.展开更多
Return period is generally adopted to calculate the design value of environmental condition in offshore structure design. However, it can not make relevant adjustment according to structure＇s, especially the mobile u...Return period is generally adopted to calculate the design value of environmental condition in offshore structure design. However, it can not make relevant adjustment according to structure＇s, especially the mobile unit＇s, life time or its operation areas and usually make the design either insufficiently safe or rather uneconomical. A formula is developed to solve this problem in the case of the design wave height, where the risk, the design life, the distributions of wave heights in operation areas and the operating durations in each area are regarded as parameters. The applications of this method and the comparisons with the general method are presented. The result of this method is considered to be proper.展开更多
文摘At present, the marine environment is faced with extremely serious eutrophication. The kelp＇s ability of taking in nitrogen and phosphorus can be fully performed so that the eutrophication problem can be effectively treated and solved. Based on the analysis of kelp＇s absorption of nutritive salt from aquaculture sewage, this paper further explores the bioremediation of kelp in aquaculture sea area with eutrophication in the hope of providing valuable reference for the aquaculture industry of BohaiSea.
基金the National Great Project of Scientific and Technical Supporting Programs Funded by Ministry of Science & Technology of China During the 11th Five-year Plan (No. 2006BAA01A25)
文摘Return period is generally adopted to calculate the design value of environmental condition in offshore structure design. However, it can not make relevant adjustment according to structure＇s, especially the mobile unit＇s, life time or its operation areas and usually make the design either insufficiently safe or rather uneconomical. A formula is developed to solve this problem in the case of the design wave height, where the risk, the design life, the distributions of wave heights in operation areas and the operating durations in each area are regarded as parameters. The applications of this method and the comparisons with the general method are presented. The result of this method is considered to be proper.
