Research on the determination and algorithm of chart datum

Li, Gaixiao; Yan-chun, Liu; Shen, Kang; He, Guimin; Li, Jidong

doi:10.1109/esiat.2010.5568884

Cited by 2 publications

(1 citation statement)

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“…In practice, these can be used exclusively or conjunctively, but conjunctive utilization has better effect. The research of Li Yueyan demonstrates that Scenedesums Obliquus has good effect of removing nitrate nitrogen at the maximum material removal rate of 64.8%; Selenastrum Reinsch is the best plant to remove Ammonia-N at the maximum material removal rate of 15.4% and Anabaena Spiroides can remove nitrite effectively with the maximum material removal rate of 98.3% [14]. Yuan Mengdong finds that the bacteria-algae system can degrade all the TP, ammonia nitrogen and nitrite nitrogen in water by putting three bacteria(nitrobacteria, denitrobacteria, Bacillussubtilis) and two kinds of algae (Chlorella pyrenoidosa and Scenedesmus quadricanda) together to improve water quality of aquaculture pond [15].…”

Section: In-situ Purification Technology Of Pond Watermentioning

confidence: 99%

Advances in Water Purification for Pond Freshwater Aquaculture

Hao

Zhu

2014

AMR

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Pond freshwater aquaculture, an important production mode, provides aquatic product for people, especially in south of China. Meanwhile, with the development of aquaculture technology of higher density and intensification, the environmental problem and pollution in freshwater pond have become even more acute. In this case, the water purification technology plays an important role in maintenance of the healthy aquaculture and there are a variety of water purification technologies in production practice. This paper is divided into four parts: a) the analysis of the causes of water quality deterioration in freshwater pond, b) the summary of water purification technologies in present, c) the brief analysis of the advantages and disadvantages of the in-situ remediation and ex-situ remediation, d) the prospection of pond water purification technologies in the future.

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Section: In-situ Purification Technology Of Pond Watermentioning

confidence: 99%

Advances in Water Purification for Pond Freshwater Aquaculture

Hao

Zhu

2014

AMR

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The Assessment on the Accuracy of Chart Datum Transfer Algorithm

Sun

Xiao

Xia

et al. 2012

AMM

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Chart datum is a vertical reference of ocean depth, which can give the ocean vertical spatial information for Marine Geodesy. Due to time and resource constraints, it is a practical problem of how to determine the chart datum with high accuracy at the short-term tidal stations. In this paper, based on the least-square fitting model, the transfer algorithm for the chart datum at the short-term tidal stations is further developed. Both the accuracy of chart datum computed by this algorithm and the effect on those are presented. The findings of this paper are summarized as follows: The accuracy computed by the least-square fitting model can achieve the centimeter level. The accuracy values determined by the least-square fitting model can further be improved by using the instantaneous ratio of tidal range and selecting the short-distance permanent tidal station.

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Research on the determination and algorithm of chart datum

Cited by 2 publications

References 0 publications

Advances in Water Purification for Pond Freshwater Aquaculture

Advances in Water Purification for Pond Freshwater Aquaculture

The Assessment on the Accuracy of Chart Datum Transfer Algorithm

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