Wyniki wyszukiwania

1

Is the pollution of the Baltic Sea increasing?

100%

Kowalewska G.

Oceanological Studies

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2000

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tom 29

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nr 1

2

Quality parameters determining the conditions of sea transportation of copper sulphide concentrates

84%

Popek M.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2015

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nr 3

3

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Calibration of backward-in-time model using drifting buoys in the East China Sea

84%

Yu F., Li J., Zhao Y., Li Q., Chen G.

Oceanologia

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2017

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tom 59

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nr 3

In the process of oil exploitation and transportation, large amounts of crude oil are often spilled, resulting in serious pollution of the marine environment. Forecasting oil spill reverse trajectories to determine the exact oil spill sources is crucial for taking proactive and effective emergency measures. In this study, the backward-in-time model (BTM) is proposed for identifying sources of oil spills in the East China Sea. The wind, current and random walk are three major factors in the simulation of oil spill sources. The wind drag coefficient varies along with the uncertainty of the wind field, and the random walk is sensitive to various traits of different regions, these factors are taken as constants in most of the state-of-the-art studies. In this paper, a self-adaptive modification mechanism for drift factors is proposed, which depends on a data set derived from the drifter buoys deployed over the East China Sea shelf. It can be well adapted to the regional characteristics of different sea areas. The correlation factor between predicted positions and actual locations of the drifters is used to estimate optimal coefficients of the BTM. A comparison between the BTM and the traditional method is also made in this study. The results presented in this paper indicate that our method can be used to predict the actual specific spillage locations.

4

On quality assurance procedures in monitoring analyses of nutrients

67%

Lysiak-Pastuszak E.

Oceanological Studies

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1996

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tom 25

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nr 3

5

How do marine bacteria produce light, why are they luminescent, and can we employ bacterial bioluminescence in aquatic biotechnology?

67%

Wegrzyn G., Czyz A.

Oceanologia

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2002

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tom 44

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nr 3

Bioluminescence, the phenomenon of light production by living organisms, occurs in forms of life as various as bacteria, fungi and animals. Nevertheless, light-emitting bacteria are the most abundant and widespread of luminescent organisms. Interestingly, most species of such bacteria live in marine environments. In this article, the biochemical mechanism of bacterial luminescence and its genetic regulation are summarized. Although the biochemistry and genetics of light emission by cells have been investigated in detail, the biological role of bacterial luminescence has remained obscure. Here, we discuss recent discoveries that shed new light on this problem. Finally, we provide examples of how bacterial luminescence can be employed in marine biotechnology, especially in the detection of toxic and mutagenic pollution in aquatic environments.

Ograniczanie wyników

2 Oceanologia

2 Oceanological Studies

1 Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

1 Chen G.

1 Czyz A.

1 Kowalewska G.

1 Li J.

1 Li Q.

1 Lysiak-Pastuszak E.

1 Popek M.

1 Wegrzyn G.

1 Yu F.

1 Zhao Y.

1 2017

1 2015

1 2002

1 2000

1 1996

Is the pollution of the Baltic Sea increasing?

Quality parameters determining the conditions of sea transportation of copper sulphide concentrates

Calibration of backward-in-time model using drifting buoys in the East China Sea

On quality assurance procedures in monitoring analyses of nutrients

How do marine bacteria produce light, why are they luminescent, and can we employ bacterial bioluminescence in aquatic biotechnology?