the dardanelles (çanakkale strait) and bosporus (istanbul strait) which have unique hydrographical characteristics were compared regarding the metabolically active bacteria, culturable heterotrophic bacteria (hpc) and their relation to the nutrients and variable environmental parameters. the samples were taken from various depths ranging from 0-30 cm to 50 meters. the halocline stratifications ...

the volume and surface area of the coast is a function of basin water levels. recognizing the factors of coastal geomorphologic changes could have a pivotal role in planning and managing the coast. effective factors in the formation and evolution of geomorphologic factors such as geological, tectonic, paleoclimatic, paleoclimatic and sea level changes have been considered in this study and the ...

background: fluoride-18 is the most widely used radioisotope for positron emission tomography (pet). [18f] 2-flouro- 2-deoxy d-glucose (fdg) has become a standard tool in the area of clinical research. the oxygen-18 enriched water is the most widely used target for the production of fluoride-18. the use of the nuclear reaction 18o (p,n)18f has been found as the most effective method for the pro...

b. Quantify the temporal variation of turbulent stresses, turbulence production, dissipation and spectra in relation to the oceanographic parameters that represent the local environment, such as waves, currents, vertical density gradient, internal waves and the nature of the water-sediment interface. The conclusions will quantify the relative importance of different mechanisms that control the ...

The interaction between currents and ocean waves is a physical process commonly occurring in coastal environments of importance for designers offshore structures, engineers concerned with sediment transport dispersion pollutants. To provide scientists summary existing knowledge on the topic, this paper presents review state art studies into water turbulent currents. progress our understanding i...

Overflows are bottom gravity currents which supply dense water masses generated in high-latitude and marginal seas into the general circulation. In light of oceanic observations which indicate that mixing of overflows with ambient water masses takes place over small spatial and time scales, and studies with ocean general circulation models, which indicate that the strength of the thermohaline c...

Electric fields and currents have been shown to be capable of disinfecting drinking water and reducing the numbers of bacteria and yeast in food. However, little research has been conducted regarding the effectiveness of electric fields and currents in the inactivation of viruses. The objective of this study was to compare the ability of bacteria and bacteriophage to survive exposure to direct ...

Fluvial flows carrying high sediment loads may plunge into reservoirs to form turbidity currents. However, the effects of tributary inflows on reservoir currents have remained poorly understood date. Here a 2D double layer-averaged model is used investigate series laboratory-scale numerical cases. By probing hydro-sediment-morphodynamic processes, we find that location and inflow conditions dis...

behaviour of the dilution characteristics of the coastal waters off tuticorin is presented in thebackground of setting up of a desalination plant. simulations of dispersion and spreading of the proposeddischarges has been carried out. scenarios of dilutions were assessed based on the results of a 2d model using the advection-dispersion theory. it is observed that under prevailing currents in th...

sea level variations in the persian gulf, the oman sea and the north of the arabian sea have been investigated. for this purpose, 365 daily satellite images provided by the topex/poseidon (t/p) and jason-1 satellites were processed. programming in matlab software environment was also carried out for some parts of image processing. the results of this research reveal that water level fluctuation...