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Concentrations of potentially toxic elements were determined in the soil solution of two soils (acidic sandy and slightly acidic clay loam) treated with phosphate rocks having high Cd content in a pot experiment. Relative concentrations characterizing the mobility of metals (expressed as soil solution concentrations in percentage of their “total” amounts in the phosphate rock-treated soil) decreased with increasing phosphate rock rates in the sandy soil. Mn@Sr>Cd@Co were the most, while Pb and Cr the least mobile elements. The relative concentrations in the clay loam soil were much lower than in the sandy soil and they practically remained constant with increasing phosphate rock rates. It was concluded that in the experimental time frame the environmental risk did not increase with the increase of phosphate rock rate.
nickel. In this study, we investigated the effect of nickel on the wettability of the copper substrate by tin–nickel solder. Furthermore, the microstructure and the distribution of the concentration of nickel were investigated. During the wetting test
polymer solution plays a significant role for fiber morphology and diameter in the electrospinning process. Generally, it is a common way to control the viscosity of the solution by adjusting various properties, such as solution concentration, polymer
effect of coating characteristics, e.g., different microstructures, concentrations of impurity phases, and indices of crystallinity, on the mechanical strengths properties of the plasma-sprayed Hap-coated Ti implans . The results showed that the
manifested by the formation of HA on the surface of the samples and thus by lowering the concentration of Ca 2+ and PO 4 3− ions in the SBF solution after luffing. The concentration of Ca 2+ and PO 4 3− ions is therefore determined by the inductively
environment of the human body. The simulated body fluid (SBF) is an example of an artificial solution, which should contain similar inorganic ions (Ca 2+ , Mg 2+ , K + Na + , HPO 4 2- , Cl − ) in similar concentrations to those of the human blood plasma to
time). It was found that cracks in the reflow-soldered joint propagated from the solder surface to the inner joint as a result of stress concentration deriving from the mismatch of various thermal expansion coefficients in the joint assembly. High
meteoritical cooling rates. Goldstein et al. [ 2 ] estimated this parameter using the diffusion coefficients for Ni in Fe. Another method [ 2 , 3 ] was based on a processing of Ni concentration data across kamacite band and taenite–kamacite border. Later, the
amount of oxygen in it; however, the side 2 (A″) of Figure 9 c shows a very high concentration of the silicon, nitrogen, and oxygen. This means that the dark phase (A″) is a combination of silicon oxide and silicon nitride which explains its higher
products formed during hydrolysis. The metabolism of these compounds results in the formation of alcohols, ketones, CO 2 , H 2 S and, mainly volatile organic acids, with acetic, propionic and butyric acids found in higher concentrations [ 10, 14 ]. The
