نتایج جستجو برای: iron density
تعداد نتایج: 546577 فیلتر نتایج به سال:
We report phonon densities of states (DOS) of iron measured by nuclear resonant inelastic x-ray scattering to 153 gigapascals and calculated from ab initio theory. Qualitatively, they are in agreement, but the theory predicts density at higher energies. From the DOS, we derive elastic and thermodynamic parameters of iron, including shear modulus, compressional and shear velocities, heat capacit...
Background: Iron can causes lipid peroxidation in vivo and in vitro. Iron promotes myocardial injury in experimental animals. Low Density Lipoprotein (LDL) oxidation by oxidants including iron have a central role in atherosclerotic process. By this means, evaluation of serum iron in patients with coronary artery disease (CAD) has a significant importance. Materials and Methods: In this cross s...
We propose a method to interpret seismic tomography in terms of thermal and compositional anomalies. In addition to the tomographic model, we use gravity data, which provide information on the density expressed as a relative density-to-shear wave velocity scaling factor (ζ = ∂ ln ρ/∂ ln Vs). The inferred values of ζ are not consistent with the presence of thermal anomalies alone. However, simul...
This paper improves an analytical model for interior permanent-magnet synchronous machine (IPMSM) by a magnetic equivalent circuit (MEC) approach. The proposed MEC model consists of three major regions: the stator, the rotor, and the air gap. The conventional reluctance approach is applied to the first two regions. Since the magnetic field in air gap region is supposed to distribute unevenly, t...
A woman over 70 years of age presented with anemia and appetite loss. She had no history of blood transfusions, although she had been receiving iron infusions for anemia for seven years. She had an elevated serum ferritin level (7,951 ng/mL) one month before admission. Abdominal computed tomography showed increased hepatic density and echocardiography showed normal heart valves and heart-wall m...
The myocardium, all parts of the conduction system, and the S-A node contained iron in six patients with acquired iron-storage disease. The nerve fibers and ganglia contained negligible amounts. No correlation was demonstrated between the amount of histochemically demonstrated iron in the myocardium and conduction system, or the amount of transfused iron, or the amount of quantitatively analyze...
The equilibrium iron isotope fractionation between lower mantle minerals and metallic iron at core-mantle boundary conditions can be evaluated from the high-pressure 57Fe partial vibrational density of states determined by synchrotron inelastic nuclear resonant x-ray scattering spectroscopy using a diamond anvil. Ferropericlase [(Mg,Fe)O] and (Fe,Mg)SiO3- post-perovskite are enriched in heavy i...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید