Observation of sub‐bottom sediments in the Southern Baltic by means of nonlinear acoustic method

2008 ◽  
Vol 123 (5) ◽  
pp. 3755-3755 ◽  
Author(s):  
Grazyna Grelowska ◽  
Eugeniusz Kozaczka ◽  
Ignacy Gloza
Keyword(s):  
Bottom Sediments ◽  
Acoustic Method ◽  
Nonlinear Acoustic ◽  
Southern Baltic

Nonlinear acoustic method for bubble density measurements in water

1998 ◽  
Vol 103 (5) ◽  
pp. 2377-2384 ◽  
Author(s):  
A. M. Sutin ◽  
S. W. Yoon ◽  
E. J. Kim ◽  
I. N. Didenkulov
Keyword(s):  
Acoustic Method ◽  
Density Measurements ◽  
Bubble Density ◽  
Nonlinear Acoustic

Nonlinear acoustic method for bubble density measurements.

1996 ◽  
Vol 99 (4) ◽  
pp. 2514-2529
Author(s):  
Alexander M. Sutin ◽  
Suk‐Wang Yoon ◽  
Eui‐Jun Kim ◽  
Igor N. Didenkulov
Keyword(s):  
Acoustic Method ◽  
Density Measurements ◽  
Bubble Density ◽  
Nonlinear Acoustic

scholarly journals The impact of sediment, fresh and marine water on the concentration of chemical elements in water of the ice-covered lagoon

2021 ◽  
Author(s):  
Magdalena Bełdowska ◽  
Agnieszka Jędruch ◽  
Dorota Sieńska ◽  
Wojciech Chwiałkowski ◽  
Artur Magnuszewski ◽  
...  
Keyword(s):  
Bottom Sediments ◽  
Food Chain ◽  
Chemical Elements ◽  
Vistula Lagoon ◽  
Accumulation Of Metals ◽  
Southern Baltic ◽  
Wind Mixing ◽  
Tourism Economy ◽  
The Impact

AbstractThe common use of chemical elements by man has been contributing to their extraction for centuries. As a consequence, they have been directly or indirectly introduced into the biogeochemical cycle. In the framework of many conventions, mining and processing of elements are currently subject to many restrictions. However, their large load that has already been deposited in the soil and bottom sediments can be remobilised and enter the food chain. The identification of factors favouring this process is very important, especially during the period of adopting new legal regulations on limiting the emission of pollutants. It became possible in February 2018 during the persistence of ice cover on the lagoon’s surface. This allowed observation of processes, the effect of which in the absence of ice is blurred by wind mixing water. Therefore, an investigation of sources of 25 elements in a lagoon of the southern Baltic has been undertaken, based on the example of the Vistula Lagoon. The results point to the remobilisation of chemical elements (including the toxic ones) from land and bottom sediments, where they have been deposited for decades. These processes led to the accumulation of metals in certain areas of the lagoon. It may result in their uptake and accumulation in the benthic organisms inhabiting the lagoon and further transfer in the food chain. It is of major importance as the lagoons in the southern Baltic fulfil many essential functions in the scope of tourism, economy, and fishery. Thanks to restrictions on the quality of wastewater and the emission of pollutants, it has been noticed a substantial “purifying” effect of rivers, too.

scholarly journals Metals in molluscs and associated bottom sediments of the southern baltic

1990 ◽  
Vol 44 (3-4) ◽  
pp. 411-424 ◽  
Author(s):  
Piotr Szefer ◽  
Krystyna Szefer
Keyword(s):  
Bottom Sediments ◽  
Southern Baltic

Concrete damage diagnosed using the non-classical nonlinear acoustic method

2009 ◽  
Vol 18 (5) ◽  
pp. 1898-1905 ◽  
Author(s):  
Zhou Dao ◽  
Liu Xiao-Zhou ◽  
Gong Xiu-Fen ◽  
Nazarov V E ◽  
Ma Li
Keyword(s):  
Acoustic Method ◽  
Concrete Damage ◽  
Nonlinear Acoustic
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