Numerical simulation of organic chemicals in a marine environment using a coupled 3D hydrodynamic and ecotoxicological model

2004 ◽  
Vol 48 (7-8) ◽  
pp. 671-678 ◽  
Author(s):  
Dong-Myung Kim ◽  
Norihide Nakada ◽  
Toshihiro Horiguchi ◽  
Hideshige Takada ◽  
Hiroaki Shiraishi ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Marine Environment ◽  
Organic Chemicals ◽  
Ecotoxicological Model

scholarly journals Numerical simulation of wind loads on an offshore PV panel: the effect of wave angle

2020 ◽  
Vol 37 ◽  
pp. 53-62
Author(s):  
Kao-Chun Su ◽  
Ping-Han Chung ◽  
Ray-Yeng Yang
Keyword(s):  
Numerical Simulation ◽  
Marine Environment ◽  
Structural Design ◽  
Lift Force ◽  
Lift Coefficient ◽  
Wind Loads ◽  
Angle Of Incidence ◽  
Initial Angle ◽  
Pv Panel ◽  
Wave Angle

ABSTRACT This numerical simulation determines the wind loads on a stand-alone solar panel in a marine environment. The initial angle of tilt is 20° and 40° and the wind is incident at an angle of 0–180° (in increments of 45°). The wave angle affects the motion of a pontoon. For a wave angle of 0–180° (in increments of 45°), the variation in the surface pressure pattern and the lift coefficient with the angle of incidence of wind and waves in a single period is determined. The lift force is determined by competing the tilt angle for the upper surface with respect to wind and variation in roll angle for a specific wave angle. The data are pertinent to structural design for photovoltaic systems in a marine environment.

scholarly journals Assessment of the tsunami hazard on Moroccan coasts using numerical modeling

2018 ◽  
Vol 149 ◽  
pp. 02079
Author(s):  
Meriem Amine ◽  
Latifa Ouadif ◽  
Khadija Baba ◽  
Lahcen Bahi
Keyword(s):  
Numerical Simulation ◽  
Numerical Modeling ◽  
Marine Environment ◽  
Tsunami Hazard ◽  
Major Event ◽  
National Network ◽  
Seismic Sensors ◽  
Source Zones ◽  
Historical Times ◽  
Preliminary Study

Caused by earthquakes in the marine environment, tsunamis are often of particular violence. Pests, their damage far exceeds those caused by earthquakes earthquakes. In Morocco, seismic sensors in the national network often detect earthquakes in the marine environment. However, specialists minimize their threat given the peculiarity of the Moroccan ocean zone. The latter is characterized by the importance of the length of the faults and the depth of the seismic focus. This work can be considered as a first approach to the study and understanding tsunamis. Although Morocco has known since historical times, earthquakes and tsunamis along its coasts. This preliminary study is mainly intended to show the contribution of the numerical simulation of tsunamis, with a concrete application of the 1755 Tsunami of Lisbon based on the four source zones involving the five potentially tsunamigenic faults that are generally mentioned in the literature for this major event.

Pesticides and Industrial Organic Chemicals

2015 ◽  
Author(s):  
Judith S. Weis
Keyword(s):  
Marine Environment ◽  
Golf Courses ◽  
Organic Chemicals ◽  
Agricultural Pests ◽  
Streams And Rivers

What are the sources of pesticides to the marine environment? Pesticides from agriculture, lawns, golf courses, and gardens wash into streams and rivers and ultimately down into estuaries. These chemicals are designed to kill agricultural pests (generally insects) on land. After being sprayed on...

A Numerical Study on Change in the Marine Environment of Tokyo Bay in the Latest 70 Years

2003 ◽  
Author(s):  
Daisuke Kitazawa ◽  
Masataka Fujino ◽  
Shigeru Tabeta
Keyword(s):  
Numerical Simulation ◽  
Marine Environment ◽  
Field Data ◽  
Numerical Study ◽  
Marine Ecosystem ◽  
Oxygen Demand ◽  
Ecosystem Model ◽  
Tokyo Bay ◽  
Marine Ecosystem Model ◽  
The Impact

A numerical study by means of a marine ecosystem model is conducted to examine the causes of change in the marine environment of Tokyo Bay in the latest 70 years. First, the marine ecosystem model is validated by comparing the predicted water quality such as water temperature, dissolved oxygen (DO), chemical oxygen demand (COD), total phosphorus (T-P) and total nitrogen (T-N) for the year of 1994 with the field data, which has been observed at 48 spots in Tokyo Bay. In addition, topography of Tokyo Bay and the discharge of chemical matters from the rivers are estimated for each year of 1935, 1979, and 1994, and the marine environment in the summer of each year is reproduced by numerical simulation. From comparing the results, it is revealed that the marine environment varies corresponding mainly to change in the discharge of chemical matters, and that the impact of reclamation is about 30% of the impact of change in the discharge of chemical matters.

Microplastics as vectors for bioaccumulation of hydrophobic organic chemicals in the marine environment: A state-of-the-science review

2016 ◽  
Vol 35 (7) ◽  
pp. 1667-1676 ◽  
Author(s):  
Linda M. Ziccardi ◽  
Aaron Edgington ◽  
Karyn Hentz ◽  
Konrad J. Kulacki ◽  
Susan Kane Driscoll
Keyword(s):  
Marine Environment ◽  
Organic Chemicals ◽  
Hydrophobic Organic Chemicals ◽  
Science Review ◽  
State Of The Science
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