Materials Literature
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According to our former investigation on space charge properties of two layers of oil-impregnated-paper and oil, the interface charge between oil and paper showed different properties with Maxwell-Wagner theory in which macroscopic conductivity and permittivity were only taken into consideration. It is assumed that th…
In this work the effect of nanostructuring an epoxy resin by introducing POSS (Polyhedral Oligomeric Silsesquioxanes) is investigated. Dielectric spectroscopy, thermal conductivity measurements and surface erosion by electrical discharges have been conducted. Epoxy/POSS composites have shown a remarkably improved resi…
In this paper, we focus on impacts of thermal cycling ageing on supercapacitors performances at a constant voltage. We compare obtained results with those coming from simple calendar ageing at constant temperature and voltage. The comparison is based on physics modeling parameters evolution based on results from exper…
This paper presents an LTSpice model for a Phase Change Memory (PCM) cell that accurately simulate the temperature profile, the crystalline fraction and the resistance of the cell as a function of the programming pulse based on physical theories. The model is able to generate the I-V characteristics of a PCM cell, and…
nanomagnesium hydroxide (Mg (OH)2) is promising potential material for biomedical applications, such as nanomedicine. However, little is known about the hemolysis of nanostructured Mg (OH)2.In the present investigation, Mg (OH)2nanoparticles synthesized by precipitation technique using magnesium nitrate and sodium hyd…
The mechanism of charge injection, the interface charge transfer between LDPE and SC (semi-conductive) or Al electrode, was investigated by using the density function theory (DFT) of Gaussian 09. The electric dipole layer between electrode (Al or SC) and LDPE is created after contact because Fermi levels between the L…
This paper presents the results of an experimental investigation on the flashover performance of Silicone Rubber outdoor insulators. The AC flashover voltage of selected samples under dry-clean, clean fog, rain and highly-polluted conditions is measured using ramp-test procedure applied to each insulator mounted in ve…
The paper presents a theoretical model to study the growth of the carbon nanotube (CNT) on the catalyst substrate surface subjected to reactive plasma. The charging rate of the CNT, kinetics of electron, ions and neutral atoms, the growth rate of the CNT because of diffusion and accretion of ions on the catalyst nanop…
Abstract The study presents the manufacturing of nanofibrous structures as osteoconductive, osteoinductive materials for osseous tissue regeneration. The fibrous structures were obtained by electrospinning of poly(l-lactide-coglicolide) (PLGA) with addition of hydroxyapatite (HAp) and of a blend of PLGA with polyhydro…
This paper reviews the relationship between repassivation kinetics and stress corrosion cracking (SCC) susceptibility of materials in terms of cBV model developed using rapid scratch electrode technique (RSET). In this technique repassivation kinetics of the alloys was analyzed in terms of the current density flowing…
The study was carried out to explain the role of Aloe vera extract as a reducing agent for the production of Ag nanoparticles. The UV-VIS spectrophotometer showed shift peak at 400nm and scanning electron microscope (SEM) showed the rectangular morphology of as prepared Ag nanoparticles with a size of (500) nm. These…
OBJECTIVE: To compare the efficacy and safety between liposome-paclitaxel plus carboplatin (LPC) and paclitaxel plus carboplatin (PC) as first-line treatment for advanced non-small cell lung cancer (NSCLC). METHODS: Totally 54 chemotherapy-naive NSCLC patients were equally and randomly assigned into LPC group and PC g…
Abstract Nestolaite (IMA 2013-074), CaSeO3·H2O, is a new mineral species from the Little Eva mine, Grand County, Utah, USA. It is named in honour of the prominent Italian mineralogist and crystallographer Fabrizio Nestola. The new mineral was found on sandstone matrix as rounded aggregates up to 2 mm across and up to…
Excessive fibroblast adhesion and proliferation on the surface of medical implants (such as catheters, endotracheal tubes, intraocular lenses, etc) can lead to major postsurgical complications. This study showed that when coated on tissue culture polystyrene, lubricin, a nanostructured mucinous glycoprotein found in t…
In this paper, the thermal conductivity of epoxy - hexagonal boron nitride nanocomposites is investigated. The main goal is to evaluate the effect of particle dispersion and distribution on the thermal conductivity of polymer composites. Therefore, nanocomposites were produced with the use of two different synthesis t…
1. Introduction. That synthesis might be undertaken by direct manipulation of atoms was suggested by Richard Feynman in 1959, although term nano-technology (1) was not coined until 1974, by Norio Taniguchi. In 1986, K. Eric Drexler published his book Engines of creation: coming era of nanotechnology, which contained n…
A 280GHz leaky wave antenna with broadside radiation is demonstrated by 13-unit-cell periodic composite right/left handed transmission line (CRLH-T-Line) in 65nm CMOS with stacking high-resistivity dielectric layer to enhance antenna radiation efficiency. The design is fabricated in CMOS 65nm process and verified by m…
The control of Diesel engine selective catalytic reduction (SCR) systems during low temperature operation is of great challenge due to the complicated urea-to-ammonia conversion process. The existing model-based SCR controls may fail to achieve their control objectives in the situation since most of them adopted SCR m…
This paper describes the partial discharge characteristics of magnet wire under high frequency AC voltage. At first, high frequency harmonics of the inverter surges are analyzed by Fourier analysis in the pulse modulation width control system of the 5 levels and 11 levels. Analytical result shows that the higher harmo…
This paper represents the continuation of a previous study regarding the prediction of critical flashover voltage of polluted and ice-covered insulators. An improved dynamic numerical model based on the finite element method for predicting both DC and AC critical flashover voltage of polluted porcelain and glass insul…