Materials Literature
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This article describes textile transmission lines, one of the important elements of modern textronic clothing. The paper describes the classification of these lines with regard to the application area and discusses the basic electrical parameters which determine their suitability for the transmission of signals of a w…
(2Z)-1-(4-chlorophenyl)-2-[(3E)-3-[2-(4-chlorophenyl)-2-oxoethylidene]-3,4dihydro quinoxalin- 2 (1H)-ylidene]ethanone (Q4) was tested as inhibitor for the corrosion of copper in 2M HNO3 using gravimetric method at 303 – 343 K. The inhibitor (Q4) showed about 90% inhibition efficiency (E (%)) at an optimum concentratio…
Based on a literature review this report provides a general description as well as an environmental and health profile of 7 nanomaterials. The examined nanomaterials are selected because of expected high use or specific environmental and health properties. Fullerenes, iron, silver, nanoclay and titanium-, cerium-, and…
The cost of titanium (Ti) and its alloys is still much higher than the costs of steels and aluminum alloys; this has inhibited their widespread usage. It is necessary to reduce their cost in order to make Ti and its alloys common metallic materials, namely, ubiquitous titanium and its alloys for their widespread usage…
The H5PV2Mo10O40 catalyzed the oxidation of thiols to their homodisulfides using hydrogen peroxide as the oxidant under mild conditions is reported. This system provides an efficient, convenient and practical method for the syntheses of symmetrical disulfides. In this work, comparisons of Keggin and Dawson type polyox…
The wearing behavior of coated layers on plowshares used in soil tillage was investigated. Plowshares produced from DIN EN 10 083 (30 MnB5) steel, widely used in plows, were coated with 20 \mum hard chromium by electrolysis method, 20 \mum electro-less nickel by chemical treatments, and 4 \mum titaniumnitride (TiN) by…
A microkinetic model is developed to study the reactivity of an O/O(2) gas mixture over a β-cristobalite (001) surface. The thermal rate constants for the relevant elementary processes are either inferred from quasiclassical trajectory calculations or using some statistical approaches, resting on a recently developed…
Carbon can exist in various structural forms (graphite, graphene, graphene-nanoribbon and flake) and these are technologically very important materials. On the other hand, hydrogen incorporation in these materials can significantly affect their structural and electronic properties. As it is difficult to observe hydrog…
By using computer simulations, we propose a simple route to fabricate 7–17 nm particles with controllable patch symmetry viaself-assembly of a polymer chain in one step. A single chain of polystyrene-polymethylmethacrylate (PS-PMMA) multiblock copolymer, which is intended to be a generic representative for common hydr…
The structural changes in liquid crystal (LC) polymer vesicles triggered by changes in temperature and the application of a magnetic field were investigated by SANS, cryo-TEM, SEM and high sensitivity DSC. PEG-b-PA444 and PEG-b-PMAazo444, two block copolymers with side-on nematic hydrophobic blocks, were used to form…
CuO nanobelt arrays supported on copper substrates are synthesized by a simple and one-pot low-temperature vapor oxidation method. The CuO nanobelt arrays show high electrocatalytic activity towards glucose oxidation.
Abstract—In this paper, tunable single-negative (TSNG) metamate-rials based on microstrip with varactor diodes loading are investigated. By tuning the external voltage, our structure can provide either an epsilon-negative or a mu-negative band gap, with varying gap width (the ratio of bandwidth to center frequency can…
We have prepared photovoltaic devices based on blend films of CdSe tetrapods and the donor/acceptor conjugated polymer PDTTTPD, which comprises 2,5-di(thiophen-2-yl)thieno[3,2-b]thiophene and thieno[3,4-c]pyrrole-4,6-dione units. The AM1.5 power conversion efficiency (PCE) of a photovoltaic device containing a PDTTTPD…
The aim of this paper is to present an efficient numerical method to analyze the vibration behavior of nano Timoshenko beams based on Eringen's nonlocal elasticity theory. The vibration frequencies of beams are firstly obtained using the theorem of minimum total potential energy and Chebyshev polynomial functions. The…
We successfully utilized the breath figure (BF) technique to create thin polystyrene films exhibiting, on the surface, holes of a few micrometres of diameter, arranged in hexagonal packed array. Three-dimensional CdTe microporous structures have been obtained by dipping these BF films into an aqueous solution of CdTe…
The effect of shielding gas composition on the phase transformation and the mechanism of pitting corrosion of hyper duplex stainless steel (HDSS) welds was investigated in highly concentrated chloride environments. The resistance to pitting corrosion of a HDSS tube after welding with Ar shielding gas supplemented with…
Multi-component nanocrystalline mesoporous metal oxides have attracted considerable attention recently, but their application in energy storage and catalysis has rarely been reported. Herein, nanocrystalline mesoporous NiMn2Ox materials with ordered mesostructures and high surface areas were prepared and characterized…
A new polyoxometalate-based 3D framework K(5)Na[K(2){Dy(H(2)O)(3)}(2){As(2)W(19)O(68)}{WO(2)(pic)}(2)] (1) (pic = 2-picolinate), composed of picolinate-functionalised dysprosium-containing tungstoarsenates and distorted potassium-picolinate cubane units, has been synthesised from the polyoxometalate precursor [As(2)W(…
A low-dimensional compound [C(6)-Apy][Ni(mnt)(2)] (1, where mnt(2-) = maleonitriledithiolate, C(6)-Apy(+) = 4-amino-1-hexylpyridinium) has been designed and synthesized, which has layer arrangement of anions and cations and shows two steps of magnetic transitions. The low temperature magnetic transition has an uncommo…
A homospin ladder-like chain, [Co(Hdhq)(OAc)](n) (1; H(2)dhq = 2,3-dihydroxyquinoxaline), shows a single-chain-magnet-like (SCM-like) behavior with the characteristics of frequency dependence of the out-of-phase component in alternating current (ac) magnetic susceptibilities and hysteresis loops.