Materials Literature
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Introduction of metal oxide nanoparticles to polymer material is known to have unique dielectric behavior and significant advantages in electrical insulation performance in power apparatus. This paper presents an attempt to clarify the influence of dispersibility of nanoparticles, especially focusing on agglomerates,…
The Ca2Mn1Re1O6 double perovskite has been prepared in polycrystalline form by using the encapsulated quartz tube method. The partial oxygen pressure inside the quartz tube revealed this to be a crucial synthesis parameter for the production of a single structural phase sample. This parameter was controlled using the…
PVA and doped PVA films were prepared by solution casting. The Change in electrical conductivity of pure PVA and transition elements FeCl3 and NiCl26H2O doped PVA films with and without -irradiation in the temperature range 50-130 C has been investigated using four point probe technique. The dc electrical conductivity…
Quantum dots exhibit unique optical properties for bioimaging purposes. We have previously developed quantum dots with a paramagnetic and functionalized coating and have shown their potential for molecular imaging purposes. In the current mini-review we summarize the synthesis procedure, the in vitro testing and, impo…
Morphometric analysis of dermal collagen can provide quantitative support to dermatologic research. The authors of this article disclose a technique of digital image analysis which allows the identification of microscopic structures by color cluster segmentation regarding the estimate intensity and density of dermal c…
A brief review of research performed on ferroelectromagnetic crystals over the 50years following the discovery of these materials by G. A. Smolenskiĭ and his colleagues is given. During the first decades single crystals and solid solutions of ferrloelectromagnetic substances were synthesized and the first evidence of…
Ammonia, as the reductant to convert NOxto nitrogen molecules in a selective catalytic reduction (SCR) catalyst, plays an important role in Diesel engine SCR control. To achieve a sophisticated SCR control, the presence of ammonia in the SCR should be precisely monitored. Ammonia sensor for gaseous concentration measu…
Carbon nanotubes have a wide range of applications in various industries and their use is likely to rise in the future. Currently, a major concern is that with the increasing use and production of these materials, there may be increased health risks to exposed workers. Long (> 15 microm) straight nanotubes may undergo…
The present stage in the study of magnetoelectric (ME) composite multiferroics is analyzed. The ME effect in materials of this kind is due to the magnetostriction and piezoelectric properties of the components. The elastic mechanical interaction between the magnetostriction and piezoelectric phases engenders a giant m…
The use of low frequency (20 kHz), high energy ultrasound for the degradation of the antibiotic ofloxacin in water was investigated. Experiments were performed with a horn-type ultrasound generator at varying applied power densities (130-640 W/L), drug concentrations (5-20 mg/L), hydrogen peroxide concentrations (0-10…
The thermoelectric power generation with various thermal conditions is examined. An analysis model considered the manufacturing factors and the pellet size is presented to predict the performance characteristics of thermoelectric generators. The theoretical analysis shows that the maximum power output is produced when…
Abstract The hydrogen and carbon monoxide separation is an important step in the hydrogen production process. If H 2 can be selectively removed from the product side during hydrogen production in membrane reactors, then it would be possible to achieve complete CO conversion in a single‐step under high temperature cond…
The urea-water-solution based selective catalyst reduction(SCR) system is one of the effective device to reduce the NOxemission of diesel engines. In order to realize the SCR technology in automotive application, a model-based approach is used for controller design in this paper. NOxemission must be regulated while NH…
We demonstrate ambipolar graphene field effect transistors individually controlled by local metal side gates. The side gated field effect can have on/off ratio comparable with that of the global back gate, and can be tuned in a large range by the back gate and/or a second side gate. We also find that the side gated fi…
The chitosan/polycaprolactone (CS/PCL) vascular scaffolds were prepared by electrospinning in order to combine the advantage of CS and PCL into the vascular scaffolds. The obtained CS/PCL vascular scaffolds were dried with ethanol, and then characterized by SEM and electronic universal testing machine. The endothelial…
This paper reports the reaction of cotton cellulose with sulphamic acid using pad bake process.
Multi-walled carbon nanotubes (MWNTs) were in-situ coated with anatase TiO2 via sol-gel process followed by annealing of the composites using infrared (IR) lamp. SEM results showed that MWNTs were coated with 15-45 nm thick TiO2 layer depending on the composite ratios. Based on the XRD results, MWNTs were found to sho…
Magnetic nanoparticles (Fe 3 O 4 ) were synthesized by the solvothermal method using FeCl 3 · 6H 2 O and ethylene glycol as a reactant. Powder X-ray diffraction, FT-IR, TEM, SEM, and VSM were used to characterize the magnetic particles. The reacting factors, such as reacting time, the concentration of iron source and…
Calcium tungstate nanocrystalline was successfully synthesised via a microwave irradiation method using Ca(NO3)2 and Na2WO4 in ethylene glycol, without the requirement of any calcination. The product was analysed by X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), transmissi…
The adsorption of five different IVA group atoms on graphene is studied by using the density functional theory. The adsorption energy, geometric, and electronic structure are calculated. We find that the adsorption energy decreases when the atomic number of adsorbate increases. The interaction between the adsorbate an…