scholarly journals Silicon isotopic chemistry in the C hangjiang E stuary and coastal regions: Impacts of physical and biogeochemical processes on the transport of riverine dissolved silica

2015 ◽  
Vol 120 (10) ◽  
pp. 6943-6957 ◽  
Author(s):  
A. Y. Zhang ◽  
J. Zhang ◽  
J. Hu ◽  
R. F. Zhang ◽  
G. S. Zhang
Keyword(s):  
Biogeochemical Processes ◽  
Coastal Regions ◽  
Dissolved Silica

Spatiotemporal distribution of nitrogen biogeochemical processes in the coastal regions of northern Beibu Gulf, south China sea

Chemosphere ◽  
2020 ◽  
Vol 239 ◽  
pp. 124803
Author(s):  
Jing Guo ◽  
Yinghui Wang ◽  
Junxiang Lai ◽  
Changgui Pan ◽  
Shaopeng Wang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Spatiotemporal Distribution ◽  
Beibu Gulf ◽  
Biogeochemical Processes ◽  
Coastal Regions ◽  
China Sea

Application of EFDC to Density Stratified Flow

2012 ◽  
Vol 256-259 ◽  
pp. 2486-2489 ◽  
Author(s):  
Bing Zhang ◽  
Jing Lv ◽  
Peng Huo ◽  
Shao Xiong Zhang
Keyword(s):  
Three Dimensional ◽  
Virginia Institute ◽  
Stratified Flow ◽  
Water Systems ◽  
General Purpose ◽  
Biogeochemical Processes ◽  
Coastal Regions ◽  
Three Dimensional Flow ◽  
Flow Transport ◽  
Environmental Fluid

Environmental Fluid Dynamics Code (EFDC) was developed by Hamrick at Virginia Institute of Marine Science for estuarine and coastal applications. EFDC is a general-purpose modeling package for simulating three-dimensional flow, transport, and biogeochemical processes in surface water systems such as rivers, lakes, reservoirs, estuaries, wetlands and coastal regions. Use the 3-D numerical model EFDC simulated the density stratified flow in a slut. Compared the simulation and experimental data, the results showed that EFDC could accurately simulated the density stratified flow.

Characterization of Impressed Current Technique to Model Corrosion of Reinforcement in Concrete

2020 ◽  
Vol 11 (1) ◽  
pp. 93-99
Author(s):  
Abu Zakir Morshed ◽  
Sheikh Shakib ◽  
Tanzim Jahin
Keyword(s):  
Immersion Time ◽  
Chloride Content ◽  
Engineering Science ◽  
Coastal Regions ◽  
Faraday’S Law ◽  
Current Technique ◽  
Corrosion Cell ◽  
Impressed Current

Corrosion of reinforcement is an important durability concern for the structures exposed to coastal regions. Since corrosion of reinforcement involves long periods of time, impressed current technique is usually used to accelerate the corrosion of reinforcement in laboratories. Characterization of impressed current technique was the main focus of this research,which involved determination of optimum chloride content and minimum immersion time of specimens for which the application of Faraday’s law could be efficient. To obtain optimum chloride content, the electrolytes in the corrosion cell were prepared similar to that of concrete pore solutions. Concrete prisms of 200 mm by 200 mm by 300 mm were used to determine the minimum immersion time for saturation. It was found that the optimum chloride content was 35 gm/L and the minimum immersion time for saturation was 140 hours. Accounting the results, a modified expression based on Faraday’s law was proposed to calculate weight loss due to corrosion. Journal of Engineering Science 11(1), 2020, 93-99

Westward Palaearctic range expansion of Papilio demoleus Linnaeus, 1758 (Lepidoptera: Papilionidae) and its arrival at Mediterranean coastal regions of Turkey and Syria

2020 ◽  
Vol 71 (4) ◽  
pp. 257-272
Author(s):  
Onat Başbay ◽  
Mudar Salimeh ◽  
Eddie John
Keyword(s):  
Eastern Mediterranean ◽  
Economic Importance ◽  
Invasive Pest ◽  
Pest Species ◽  
Coastal Regions ◽  
The North ◽  
North Eastern ◽  
The World ◽  
Invasive Pest Species ◽  
Papilio Demoleus

We review the continuing and extensive spread of Papilio demoleus in south-eastern Turkey and in regions of Turkey and Syria adjacent to the north-eastern Mediterranean. Since the authors documented the arrival of this attractive but potentially destructive papilionid species at coastal areas of Syria in 2019, regular monitoring has confirmed successful overwintering there, as well as in Turkey. As previously indicated, P. demoleus is widely recognized as an invasive pest species in Citrus-growing areas of the world and hence its arrival is of potential economic importance to a region in which citrus is widely grown.

DYNAMICS OF THE ANAPA BAY-BAR SUBMERGE SLOPE

2017 ◽  
Author(s):  
Elena Fedorova ◽  
Elena Fedorova
Keyword(s):  
Economic Development ◽  
Bottom Topography ◽  
Coastal Processes ◽  
Coastal Regions ◽  
Shirshov Institute ◽  
Socio Economic Development ◽  
Southern Branch

The planning of exploration and socio-economic development of coastal regions is impossible without the knowledge of coastal processes and scientifically based forecast of the evolution not only the shoreline, but the submerge slope also. Laboratory of lithodynamic and geology of the Southern Branch of the P.P. Shirshov Institute of Oceanology RAS since 2010 surveys bottom topography within Anapa Bay-Bar. Along Anapa Bay-Bar the presence of two longshore underwater bars is clearly observed. The first underwater bar is narrower than another one. His width is up to 40 m and it is located at the depth of 1.5-2.0 m. The second underwater bar is wider (up to 150 m) and it is located at the depth of 3.5-4.0 m. The both bars have the height, approximately, of 2.0-2.5 m. Both bars are well expressed in the central part of Anapa spit. Modern dynamics of the submerge slope changes will be considered in the paper.

Interannual variability in oceanic biogeochemical processes inferred by inversion of atmospheric O2/N2and CO2data

Tellus B ◽  
2008 ◽  
Vol 60 (5) ◽  
Author(s):  
C. Rödenbeck ◽  
C. Le Quéré ◽  
M. Heimann ◽  
R. F. Keeling
Keyword(s):  
Interannual Variability ◽  
Biogeochemical Processes
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