Materials Literature
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In this paper, we established the prediction capability for uniaxial compressive strength (UCS) from micro-fabric characterization of banded amphibolite schists using fuzzy inference system (FIS) and multiple linear regression (MLR) techniques. In this study, the method of semi-automatic petrographic image analysis (P…
We have theoretically and experimentally studied the direct magnetoelectric (ME) effect in ring structures made of volume ferrite–piezoelectric composites based on lead zirconate titanate and nickel ferrite. Analytical expressions for the ME voltage coefficient are obtained by jointly solving elastodynamic and electro…
The problems concerning the vibrometric studies of the kinematic and vibrational components of mechanical structures, which are performed via the radio-wave method based on ultrashort pulses (USPs) in the field of vibrometrological diagnostics, are discussed. The principles of radio radiosensory USP probing are formul…
A diamine Acenaphtohydrazinomercaptotriazole (AHTD) was synthesized in one step from acenaphthoqinone and 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole. The diamin was characterized by FTIR, 1HNMR, 13CNMR and melting point. Diamin was used to prepare novel polyamides. The low temperature solution polycondensation of d…
International Standard IEC60034-18-41IS was issued in 2014 to qualify Type I insulation systems of inverter-fed-electrical rotating machines. In the next stage, Technical Specification IEC60034-18-42 for Type II insulation systems is currently under discussion. To perform the qualification test, it is desirable to hav…
Analysis of the phase diagrams of Cu–Pd– Me systems ( Me = Ag, Au, Ni, Pt, Ga) shows that introducing gold and palladium atoms in alloys of stoichiometric composition CuPd and Cu 3 Pd may give rise to extensive regions of homogeneity of phases with long-period structures after the appropriate heat treatment. In Ti–Al–…
Theoretical approaches to describing the energy spectrum, magnetic dynamics, and Mössbauer spectra of antiferromagnetic and ferrimagnetic nanoparticles are discussed. Many of the qualitative effects observed experimentally for almost half a century can be explained in terms of these approaches, and a qualitative descr…
Maxwell’s equations describing an electromagnetic field propagating in graphene with disorder are analyzed. The spectrum of electrons for the graphene subsystem is chosen based on the renormalization group approach. An effective equation governing the vector potential of the electromagnetic field is derived and solved…
Superoxide anion (SOA) as a member of reactive oxygen species (ROS) group is involved in various physiological and pathological states. For instance, generation of SOA is known to increase with skeletal muscle contractile activity and fatigue. It is therefore important to selectively detect and accurately quantify the…
There have been recent remarkable developments in self-healing chemistries for polymeric materials. These hold great promise for self-healing electrical insulation systems, which can confer self-healing functionality in a variety of power generation and transmission applications. A particular area of interest is under…
S B Duan, R M Wang, J Y Liu; Aberration-corrected STEM of Highly Loaded Pti/NiO Single-atom Catalysts: Structural and Catalytic Stability, Microscopy and M
In this paper, nanoporous titania thin films for PEC conversion of water were dip coated by using acetic acid as a stabiliser and poly(ethylene glycol) (PEG) as a pore former. The evolution of microstructure and morphology of the thin films at different conditions was investigated by XRD, SEM and AFM. Anatase was the…
Premature failures of stator insulation account for a large percentage of repairs of marine generator systems. The failure mechanisms of such faults have been presented in many parts of the literature. Partial discharge activity, thermal degradation, thermal cycling, harmonics and transients are some examples of such…
Influence of the AlGaN barrier thickness on polarization Coulomb field scattering in an AlGaN/AlN/GaN heterostructure field-effect transistor* , Lv, Yuan-Jie, Feng, Zhi-Hong, Gu, Guo-Dong, Yin, Jia-Yun, Fang, Yu-Long, Wang, Yuan-Gang, Tan, Xin, Zhou, Xing-Ye, Lin, Zhao-Jun, Ji, Zi-Wu, Cai, Shu-Jun
Double transmission peaks electromagnetically induced transparency induced by simultaneously exciting the electric and magnetic resonance in one unit cell* , Liu, Si-Yuan, Zheng, Bu-Sheng, Li, Hai-Ming, Liu, Xiao-Chun, Liu, Shao-Bin
Fabrication of polyvinyl alcohol (PVA) fibers loaded with evenly distributed nanosilver has been sucessfully done using electrospinner. The electrospinner is set at 15 kV DC voltage with distance between electrodes 13 cm, using a syringe hole diameter 0,5 mm. The feeding solution for the electrospinning was prepared b…
Ti-5553(Ti-5Al-5Mo-5V-3Cr-1Fe) is a new near-β Titanium alloy with some applications as structural components in aircrafts. In this paper, Ti-5553 alloy was heat treated at four different solid solution temperatures: 770°C, 790°C, 830°C and 850°C, followed by the same aging treatment. Quasi-static compressive and tens…
TiB-Ti/Ti-6Al-4V composites were fabricated by spark plasma sintering (SPS) technique under a pressure of 50MPa, with sintering temperature of 1300 °C and heating rate of 100 °C /min. The effect of the TiB content in TiB-Ti composite layer on microstructures and mechanical properties of the TiB-Ti/Ti-6Al-4V composites…
This paper reports a 3-D computational simulation of electrostatic potential uniformity which was affected by various measurement plates. The finite element analysis method has been done by COMSOL Multiphysics to model the electrostatic potential behavior. The electrostatic potential from two electrodes in the free sp…
Effective interface engineering technology in GaN-based insulated-gate heteroj unction transistors are of critical significance to enhance device stability and suppress current collapse. In this paper, we present an interface engineering approach featuring in situ low-damage remote plasma treatment prior to the dielec…