We have carried out a theoretical study of the electronic structure and magnetic properties of both bulk and supercell slab CeCo2. The calculations are based on first-principles density functional theory with generalized gradient approximation (GGA) and also with the GGA+U scheme. Both GGA and GGA+U calculations predict bulk CeCo2 to be nonmagnetic, in agreement with experiments. However, calcu...

In the current paper, finite element method is employed for numerical simulations and the study of influential parameters on elastic modulus of polymer-matrix nano-composites. Effects of different key parameters including particle elastic modulus, interphase elastic modulus, matrix elastic modulus, interphase thickness and particle volume fraction on total elastic modulus of nano-composite mate...

Nano particles may be more useful in comparison to bulk materials because they can pass the cell membrane of crops because of their general size. Nano-silicon or SiO2 is one of the major and frequently used engineered oxide nano particles in deferent fields. Quick germination of cultivated seeds and good seedling establishment are key factors to lentil production under salinity stress soil acro...

We present a single-electron device for the manipulation of charge states via quantum interference in nanostructured electrodes. Via self-inductance effects, we induce two independent magnetic fluxes electrodes and demonstrate sensitivity to single field at variable temperature. Moreover, our approach allows us local control single-particle conductance between nano-engineered tunnel junctions f...

Surface, interface and bulk properties of artificially structured, new magnetic materials play a fundamental role in modern science and technology. From thin films to patterned magnetic nano-structures, these magnetic materials and systems can be utilized in many electrical and electronic devices. Using highly surface sensitive techniques, electron capture spectroscopy (ECS), angleand energy-re...

Tungsten carbide cobalt (WC-Co) has been recognized as a workplace inhalation hazard in the manufacturing, mining and drilling industries by the National Institute of Occupational Safety and Health. Exposure to WC-Co is known to cause "hard metal lung disease" but the relationship between exposure, toxicity and development of disease remain poorly understood. To better understand this relations...

A hydrothermal reaction of Mn(OAc)(2)·4H(2)O, Co(OAc)(2)·4H(2)O and 1,2,4 benzenetricarboxylic acid at 220 °C for 24 h gives rise to a mixed metal MOF compound, [CoMn(2){C(6)H(3)(COO)(3)}(2)], I. The structure is formed by the connectivity between octahedral CoO(6) and trigonal prism MnO(6) units connected through their vertices forming a Kagome layer, which are pillared by the trimellitate. Ma...

Background & objectives: Xylene, which can pollute the water sources, is widely used as a solvent in insecticide manufacture, dye and leather and other industries. Adsorption is one of the most common processes used to treat the contaminated aqueous solutions by xylene. Therefore, the aim of this study was to compare the xylene removal efficiency and adsorption isotherms of magnetic nanoparticl...