Materials Literature
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We have demonstrated possibility of electrochemical preparation of metal-polymer nanocomposites on pure iron and steel electrodes in the course of electrochemically initiated polymerization of 1-vinyl-1,2,4-triazole accompanied with cathode formation of metals. Silver nanoparticles have been uniformly distributed in t…
In this work, we reported a simple and sensitive electrochemical method for nitrite detection via Griess reaction. Specifically, naphthylethylenediamine (NEA) was immobilized onto the gold electrode to form positively charged self-assembled monolayers (SAMs). The positive charges on electrode facilitated the access of…
The objective of this work is to use techniques like Raman analysis, XRD and AFM imaging to confirm that multiwall carbon nanotubes (MWCNT) based Polyvinylidene Fluoride (PVDF) composites can be used in strain sensing engineering applications. I D /I G ratio, obtained from Raman Analysis is used to predict the defect…
Abstract Grafting hyperbranched polyglycerols onto a carbon fiber surface is done in an attempt to improve the interfacial and impact properties between carbon fiber and epoxy resin. Scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and dynamic contact angle…
The Loess Plateau in China is one of the most severely eroded areas in the world. Understanding the characteristics of soil aggregation and the distribution of soil organic carbon (SOC) in aggregates on the plateau is essential for improving regional soil quality. A 2-year study was conducted in a wheat cropping syste…
Quick mast–105 is a well-known epoxy-based adhesive used in fabric reinforcement, bonding of wooden parts and variety of metals. Its mechanical and thermal properties are still limiting factors for extended technological and industrial applications. Enhancement of mechanical, wear and thermal characteristics of this e…
DC-excited flux-switching motor (DCEFSM) is increasingly considered as a candidate traction motor for electric vehicles due to its robust and magnet-free structure with relatively high torque density and extendable speed range. In this paper, an automated design tool based on nonlinear magnetic equivalent circuits (ME…
The formation of ion products upon single and dissociative electron-impact ionization of the tryptophan (C 11 H 12 N 2 O 2 ) molecule has been studied using mass-spectrometric techniques. The mass-spectrum of tryptophan has been obtained and interpreted, and the near-threshold ion yields from the initial molecule and…
The effect of lead-acid battery/supercapacitors combination on battery service life is addressed in this paper. With the help of a cycling bench, accelerated aging tests of VRLA batteries were carried out. Pulsed power and smoothed power profiles were applied to the battery under 40°C. These tests reproduce the batter…
Nanotechnology is the art and science of manipulating matter at the nanoscale (down to 1/100,000 the width of a human hair) to create new and unique materials and products. Nanotechnology has enormous potential to change society. An estimated global research and development investment of nearly $9 billion per year is…
Abstract One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows to determine the mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings…
A method of obtaining new organic-inorganic nanostructured proton-exchange membranes operating via the anhydrous proton-conduction mechanism is proposed. An oligo(ethylene oxide) component serves as a proton-conducting phase in these membranes, and the sulfo derivatives of octahedral oligosilsesquioxanes of the acidic…
We investigated the optical and the electrical properties of InAs quantum-dot solar cells (QDSCs) with various InAs deposition thicknesses ( θ ) via photoluminescence (PL), spectral response (SR), and current density-voltage (J-V) measurements. We fabricated three QDSCs with thicknesses of 2.0, 2.5, and 3.0 monolayers…
Emulsion and emulsifier-free emulsion polymerization of styrene, N -vinylformamide, and ethylene glycol dimethacrylate are investigated with the goal to form positively charged monodisperse submicron crosslinked particles. The effects of the monomer ratio, the type and concentration of the buffer salt, and the emulsif…
The trend for material and energy recovery from biomass-waste along with the need to reduce green house gases has led to an increased interest in the thermal processes applied to biomass. The thermal process applied to biomass produces either liquid fuel (bio-oil) or gaseous fuel. One of the biomass wastes that are pr…
Abstract It has been established that disagreements between different methods of particle size determination of clay minerals can be ascribed to the non-spherical shape of the clay particles. However, by having aspect ratios available, particle sizes can be harmonized. One frequently used approach to obtain aspect rat…
Nowadays aluminum stiffened plates are one of the major constituents of the marine structures, especially high-speed vessels. On one hand, these structures are subject to various forms of loading in the harsh sea environment, like hydrostatic lateral pressures and in-plane compression. On the other hand, fusion weldin…
High-quality Na2W2O7 single crystals have been grown by low temperature gradient Czochralski technique (LTG Cz). The phase purity of grown crystals has been verified by XRD analysis. A set of oxide compositions based on Na2W2O7 and doped with Ce and special additions for charge compensation has been prepared by solid…
We have newly developed a double-pulse laser-induced dot transfer technique to realize ondemand deposition of functional oxide microdots under room-temperature atmospheric conditions. In our double-pulse system, the first pulse was irradiated to preheat an oxide source film, and then the second pulse was more tightly…
Molecules of 3,3′-diethyl-5,5′-dichloro-9-ethylthiacarbocyanine form dimers in aqueous solutions, which are capable of fluorescence and intersystem crossing to the triplet state. In the presence of cucurbit[7]uril and alkali metals or ammonium cations, dye dimer complexes are formed, which exhibit phosphorescence and…