نتایج جستجو برای: saltwater concentration
تعداد نتایج: 382117 فیلتر نتایج به سال:
The vulnerability of coastal aquifers to seawater intrusion has been largely relying on data-driven indexing approaches despite their shortcomings depict the complex processes groundwater flow and mass transport under variable velocity conditions. This paper introduces a modelling-based alternative technique normalized saltwater age index post-processed from results density simulation. distribu...
The Meliane River, the second longest and most important river in Tunisia, is one of major rivers that flow into Gulf Tunis. However, it known by its significant discharges urban industrial activities have seriously affected quality aquatic ecosystem. highest amounts Cadmium (Cd), Copper (Cu), Lead (Pb), Zinc (Zn), Nickel (Ni), Chromium (Cr) Manganese (Mn) surface sediments River indicate downs...
Copper (Cu) toxicity is an increasing concern in marine environments; however, its effects are species- and area-specific. In this study, area-specific Cu test was conducted on the sensitive early life stages (i.e., embryonic larval development) of two important fisheries species, namely, Pacific oyster (Crassostrea gigas) sea squirt (Halocynthia roretzi) using natural waters collected from thr...
Our earlier studies showed that paired photostimulation allows the detection of pollutants in an aqueous medium according to behavioral responses freshwater Crustacea. The first stimulus initiated and stabilized response. increase response second made it possible assess responsiveness zooplankton community. This paper validity this method for micro- nanoplastic contamination saltwater reservoir...
Deterioration of groundwater resources in coastal regions due to the progression of saline water in aquifers in these regions is currently one of the important issues in providing water needs in these areas. In coastal regions, saline water enters the aquifer from below in shape of wedge. Due to the difference in the density between fresh and salty water, an interface zone forms between two flu...
Abstract Anisakis is a parasite that found in many marine products and can cause anisakiasis when present fish consumed raw. The most common way to prevent freeze the fish, but this causes noticeable decrease quality of eaten as sashimi. Although no practical method killing anisakis other than freezing has been found, we have now succeeded inactivating inside meat by repeatedly instantaneously ...
Monitoring dissolved oxygen is essential to marine research, but the high redox potentials required drive sensing reactions have posed an ongoing instability issue in sensors. Here, a novel dual-gate configuration for organic electrochemical transistors that extends device stability window demonstrated. This paper presents sensor operating principle relates channel conductance on two gates. bro...
Stormwater-driven road salt is a chronic and acute issue for streams in cold, urban environments. One promising approach reducing the impact of contamination adjacent aquifers to allow “accidental wetlands” flourish areas. These wetlands form naturally as byproduct human activities. In this study, we quantified ability an accidental wetland northwestern North Carolina, USA, reduce timing peak c...
In this paper we present a parallel implementation of a 2D numerical model for the solution of a transient density driven flow in porous media. The physical processes involved are multiscale, therefore computation time are usually long, thus a special effort has been made to speed-up computations by using parallel architectures. As most of the CPU time is spent in solving large sparse linear sy...
We investigated the relationship between glucocorticoids, thyroid hormones, and outer ring and inner ring deiodinases (ORD and IRD) during embryonic development in the saltwater crocodile (Crocodylus porosus). We treated the embryos with the synthetic glucocorticoid dexamethasone (Dex), 3,3',5-triiodothyronine (T(3)), and a combination of these two hormones (Dex + T(3)). The effects of these tr...
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