نتایج جستجو برای: element concentration
تعداد نتایج: 578376 فیلتر نتایج به سال:
Stress concentration factors have been examined in a functionally graded material (FGM) plate with central holes in different shapes in this essay. The material properties change along the thickness of plate. ABAQUS software has been utilized for modeling of problem in which subroutine of ABAQUS sub-program was used for modeling of the targeted material. The considering shapes for hole in plate...
Nickel (Ni) is necessary for plants at low concentrations but excess Ni has toxic effects on plant growth. In this research, the effects of different Ni levels (0, 50, 100 and 200 µM from NiCl2) on leaf antioxidative response of two cucumber cultivars (Cucumis sativus L. cvs. Super Dominus and Negin) supplied with NH4NO3 as nitrogen source in nutrient solution was investigated. The results show...
fossil fuel power plant is one of the most important sources of environmental pollution of the vanadium toxic metal. this survey showed that the penicilium austuranium is the best microorganism for biosorption of vanadium isolated from environment of fossil fuel power plant. to determine the optimum ph and most biosorption and accumulation of vanadium by these fungi, power plants wastewater, pa...
In this paper, optimal error estimates are obtained for a method for numerically solving the so-called unipolar model (a one-dimensional simpliied version of the drift-diiusion semiconductor device equations). The numerical method combines a mixed nite element method using a continuous piecewise-linear approximation of the electric eld with an explicit upwinding nite element method using a piec...
Changes of macromineral and trace element concentration in the blood of ewes during lactation period
Changes of macromineral and trace element concentration in the blood ewes during lactation period | Zvonko Antunović, Boro Mioč, Zdenko Lončarić, Željka Klir Šalavardić, Ivan Širić, Valentino Držaić, Josip Novoselec Agricultural Journals
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