Materials Literature
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Although numerous intron gains have been discovered, the mechanisms of intron creation have proven to be elusive. Previous study revealed that the vulcan gene of Drosophila melanogaster contained four exons in its coding region. In the current study, a newly created intron (Intron L) was identified on exon 2 of vulcan…
The most important aim of chemical pre-treatment is the removal of contaminants, corrosion products etc. from the material surface and obtaining such a basic material surface, which will provide sufficient corrosion resistance of the base material and suitable conditions for the adhesion of paints or other finish coat…
An analysis of the schemes related to centralized exhaust ventilation systems used in multi-story residential buildings with ventilation units has been made herein. Main disadvantages of such systems have been determined. An aerodynamic scheme of a system with implementation options has been suggested. Calculation met…
This paper presents theoretical analysis and comprehensive simulations about average torque and pulsation torque of vernier permanent magnet (VPM) machine. A general torque equation is proposed which is used to analyze torque features and the parameters effect on torque performance of VPM machines in this paper. Based…
This paper discusses influence of magnet shape on torque behavior in surface-mounted permanent magnet (SPM) motors. The effect of pole embrace optimization, magnet-skew and magnet shaping have been analyzed in different 8-pole, 24-slot, three phase SPM motors which having the same stator configuration. Finite-element…
Thermal conductivity of natural rubber has been studied by classic molecular dynamics simulations. These simulations are performed on natural rubber models using the adaptive intermolecular reactive empirical bond order (AIREBO) and the Green-Kubo molecular dynamics (MD) simulations. Thermal conductivity results are f…
Tellurium (Te) nanostructures have been successfully synthesized via a simple hydrothermal methodfrom the reaction of a TeCl4 aqueous solution with thioglycolic acid (TGA) as a reductant. TGA can be easily oxidized to the corresponding disulfide [SCH2CO2H]2, which in turn can reduce TeCl4 to Te. The obtained Te was ch…
The dependence of the density of energy states (N s ) on temperature in quantizing magnetic fields is studied. It is shown that, as temperature is increased, the Landau levels are blurred as a result of thermal widening and the quantities N s are transformed into the density of states as in the absence of a magnetic f…
In this paper are presented the results of experimental studies determining the dependence of the impact of an innovative welding micro-jet method on the intensity of abrasive wear of chrome-manganese 20MnCr5. The presented method is generally used for the constructions work items matrix for the production of silicate…
This paper presents a comparative study on the effects of the number of poles on the synchronous reluctance machine's magnetic and mechanical performances for automotive applications. In automotive applications the design limitations i.e., proper size, maximum speed, torque envelope, and converter rating make the desi…
We present the analysis of paramagnetic eects of magnetic eld (B) (Zeeman term) in the zero-bandwidth limit of the extended Hubbard model for arbitrary chemical potential and electron density n. The eective Hamiltonian considered consists of the on-site interaction U and the intersite charge exchange term I, determini…
Recent developments in fragment-based methods make it increasingly feasible to use high-level ab initio electronic structure techniques to molecular crystals. Such studies remain computationally demanding, however. Here, we describe a straightforward algorithm for exploiting space-group symmetry in fragment-based meth…
A novel factor for membrane protein integration, from the cytoplasmic membrane of Escherichia coli, named MPIase (membrane protein integrase), has recently been identified and characterized. MPIase was revealed to be essential for the membrane integration of a subset of membrane proteins, despite that such integration…
Cationic and anionic residues of the extracellular matrices (ECM) of bone play synergistic roles in recruiting precursor ions and templating the nucleation, growth and crystalline transformations of calcium apatite in natural biomineralization. We previously reported that zwitterionic sulfobetaine ligands can template…
Last years much attention is paid to energy efficiency and conservation in organizations. But energy saving at industrial scale starts with heat energy saving, electricity and water in each apartment and every home. The article describes the basic rules of saving heat, electricity and water at home. Also described the…
Networks-on-Chips (NoCs) are experiencing escalating susceptibility to wear-out and reduced reliability, with the risk of becoming the key point of failure in an entire multicore chip. Aiming towards seamless NoC operation in the presence of faulty communication links, in this paper we propose Hermes, a highly-robust,…
Light-emitting field effect transistors (LEFETs) are optoelectronic devices that can simultaneously execute light emission and the standard logic functions of a transistor in a single device architecture. In this article, we show that ambipolar LEFETs can be made in a bilayer structure using Super Yellow, a light-emit…
PURPOSE: To evaluate the effect of grinding and airborne-particle abrasion on the biaxial flexural strength (BFS) and phase transformation of a Y-TZP ceramic, and examine whether sintering the veneering porcelain renders the previous heat treatment recommended by the manufacturer unnecessary. MATERIALS AND METHODS: La…
This article presents the nonlinear modeling of the torque of brushless PMSMs by using symbolic regression. It is still popular to characterize the operational behavior of electrical machines by employing linear models. However, nowadays most PMSMs are highly utilized and thus a linear motor model does not give an ade…
In this study the effects of doping atoms (Al, Cu, and N) with different electro-negativities and ionic radii on resistive switching of HfO 2 -based resistive random access memory (RRAM) are systematically investigated. The results show that forming voltages and set voltages of Al/Cu-doped devices are reduced. Among a…