The first-order nature of the magnetic phase transformation at 360 °C and the presence of a Bi-rich eutectic at 265 °C have inhibited the application of MnBi thin films for high density magneto-optical data storage. It is suggested that partial substitution of Cr for Mn should both lower the Curie temperature, Tc , and decouple the lattice and magnetic transitions so as to allow reversible Curi...

Relaxometric studies are still of scientific interest due to their use in medicine and biology. In this study, proton T(1) and T(2) relaxivities of Mn(II), Cu(II) and Cr(III) in water were determined in the presence and absence of various proteins (albumin, alpha-globulin, gamma-globulin, lysozyme, fibrinogen). The 1/T(1) and 1/T(2) in all solutions are linearly proportional to the concentratio...

in this paper, the hydrogen embrittlement of the high strength cr-si spring steel with after zn-12%ni electroplating, have been evaluated. slow strain rate test with 3.34 × 10 -6 sec -1 strain rate was performed, and the hydrogen embrittlement index of the different samples was calculated. the effect of shot peening before plating and the baking after plating and also the effect of applying a n...

This study features a survey of the concentrations of aluminum (Al) and heavy metals (Mn, Pb, Cd, Hg, As, Cr, Ni, Cu, and Zn) in tea leaves and the corresponding cultivation soils (0-30 cm), carried out in Puan County (Guizhou Province, China). The average concentrations of Al, Mn, Pb, Cd, Hg, As, Cr, Ni, Cu, and Zn in the soil were 106 × 10³, 214, 20.9, 0.09, 0.12, 17.5, 121, 27.8, 131.2, and ...

Magnetic resonance imaging (MRI) and (1)H magnetic resonance spectroscopy ((1)H-MRS) have been used in clinics for diagnosis of chronic liver diseases. This study was designed to investigate the relationship between MRI/MRS outcomes and the severity of liver damage. Of 50 patients examined, the MRI signal intensity in the globus pallidus as determined by pallidus index (PI) increased as the dis...

The study focused on assessment of metal accumulation in certain aquatic macrophytes and benthic organisms to be used as biomonitors. The macrophytes and benthic organisms collected during April to May (2011) from river Cauvery, one of the main fresh water aquatic systems in the south of India. Microwave digested samples of discrete organs of macrophytes and benthic organisms were analyzed for ...

Background The aim of the present study was to determine changes in serum concentrations of trace elements Cooper (Cu), Chromiun (Cr), Manganesum (Mn), Nickel (Ni) and Selenium (Se) in high-level sportsmen. Methods Eighty professional athletes of different metabolic modalities, were recruited before the start of their training period. Thirty one sedentary participants of the same geographic a...

T. Kubina, J. Kliber, L. Kunčická, M. Berková, J. Horsinka, VŠB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Czech Republic J. Bořuta, Material & Metallurgical Research, Ltd., Ostrava, Czech Republic Energy dissipation and areas of process instability were investigated in two alloys. The fi rst one was brass, the second one was the steel 9 Cr (P91). The te...

Aims: to investigate and to compare the variation of the bioaccumulation of heavy metals (Cr, Cd, Fe, Mn, Pb and Zn) by two different molluscs species and also heavy metal concentration in sea water and sediment in Timsah Lake-Suez Canal. And finally to study the correlation between metal concentrations in different size classes of each molluscan species. Study Design: Levels of the heavy metal...