Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Graphene is perspective material for future carbon based electronics, flexible electronics and other applications. The necessary condition for the commercial use is the high quality graphene growth and semiconductor technology compatible process of whole field effect transistor (FET). One of suitable method for large…
Graphene nanoribbons (GNRs) are nowadays considered as a promising candidate for the upcoming nanoelectronics. GNRs are fabricated in laboratory by cutting a monolayer graphene into nano strip ribbon. Armchair GNR (A-GNR) which is now widely used because of its semiconducting electronic properties. Band gap energy, ve…
The aim of work was to develop precise etching process of AlGaN/GaN heterostructures. The study was focused on surface parameters evolution and etch characteristics of etched layers. The surface parameters depended on selection of composition of Cl2:BCl3:Ar gas mixture, while the amount of boron trichloride in Cl2:BCl…
Nanomaterials are defined as substances that have at least one dimension <100 nm. They have unique physicochemical properties and innovative functions compared with conventional materials of submicron size. As such, they have many applications in nanomedicine, such as in drug delivery or diagnostic and imaging systems…
The influence of the charge on the permeability of microgel particles is studied in the presence of electric fields. Electrophoresis experiments performed on pH-ionizable pNIPAM-AA microgels show that particles behave as permeable spheres when the network is ionized. However, they keep non-permeable in the absence of…
The octylcyanobiphenyl (8CB) liquid crystal was doped by ZnO nanoparticles to improve the dielectric anisotropy parameters, as the image quality of liquid crystal displays (LCDs) is strongly dependent on the dielectric anisotropy of the liquid crystal. The dielectric anisotropy parameters of the liquid crystals have b…
In the recent years, the application of nanotechnol. in the field of medicine has had a pos. impact on human health care. There have been rapid strides in the diagnosis of diseases, targeted delivery of drugs and in treatment of innumerable diseases due to the advent of nanomedicine. An increasing interest in the rese…
In order to improve the accuracy of degradation diagnosis for CV power cables, it is important to clarify the inception and propagation mechanisms of electrical tree degradation from water tree degradation. This paper presents the influence of AC voltage prestressing on the inception voltage of AC electrical-tree in t…
The paper presents a study of heating for induction machine, using the theory of the two thermal bodies. This theory gives good results for low power machines. The differential equations of heat are discussed and a simple thermal equivalent circuit is proposed for the machine. From the experimental tests, the equation…
A model of corona sheath that surrounds the \nthin core of the lightning channel has been investigated by \nusing a new space charge function. The lightning channel \nis modeled by a charged corona sheath that stretches \naround a highly conductive central core through which the \nmain current flows. The channel core…
Organic-inorganic hybrid hydrogel electrolyte with ionic conductivity and electrochemical window comparable to the corresponding electrolyte solution was used for assembling an all solid-state rechargeable Ni-Zn cell. The all solid-state rechargeable Ni-Zn cell was superior in charge-discharge performance to the conve…
In this work we are interested with the dynamic behavior and density of PDLCs films (Polymer Dispersed Liquid Crystals).constituted of the microdroplets of nematic liquid crystal E7 dispersed in two types of polymer matrix; Tripropylene glycol diacrylate (TPGDA) or Propoxylene-glyceryl-triacrylate (GPTA). These films…
The possibility of using graphene as a key element to develop low-cost terahertz sources has been considered on the basis of theoretical predictions showing non-linear effects leading to frequency multiplication phenomenon. For the integration of graphene in real devices of such kind, special attention must be paid to…
The extent of copper leaching in soil columns packed with black volcanic soils, very dark brown volcanic soils, and dark brown non-volcanic soils and in soil beakers containing copper grounding materials (copper clad steel, copper pipe, and copper plate) were examined using deionized distilled water, HNO3(pH 3.5) and…
Loss analysis of small induction motors is conducted in order to show the differences by supplying with sinusoidal and PWM voltage. In the first part of the analysis, under sinusoidal voltage supply, the motor was tested according to the Canadian CSA C390-98 standard (based on IEEE 112B). These results are the referen…
Novel triazole Schiff-bases derivatives have been synthesised from 3,5-diaryl-4-amino-1,2,4-triazole with naphthaldehyde and anthraldehyde. The emission spectrum of 3,5-diphenyl-4-(anthrylmethyleneamino)-1,2,4-triazole exhibited fluorescent quenching upon chelation to Fe 3+ ions.
The mechanical and dielectric properties change significantly when the temperature is close to the glass transition temperature (Tg) for epoxy resin, which is a dry-type insulation materials used in the high voltage direct current (HVDC) power transmission system. In order to study the effect of dynamic glass transiti…
In previous work [Phys. Plasmas 21, 032901 (2014), Q. Chen et al.], a two dimensional Eulerian finite difference code was developed for solving the non-ideal magnetohydrodynamics (MHD) equations including the effects of self-consistent magnetic field, thermal conduction, resistivity, gravity, and radiation transfer, w…
In this paper we propose the use of Support Vector Machine classifiers (SVM) and linear discriminant analysis (LDA) to determine the existence of magnetic flux leakage (MFL) in non-destructive testing (NDT for its acronym in English) performed on ferromagnetic sheets. These signals were provided by the Corporation for…
Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) is a ferroelectric polymer with applications ranging from electromechanical transducers to nonvolatile ferroelectric random-access memory (FeRAM). In this work, the reversal of electrical polarization in PVDF-TrFE was studied with both time- and depth resolution…