Materials Literature
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In order to develop novel shape memory actuators, the torsional deformation of a shape memory alloy (SMA) tape and the actuator models driven by the tape were investigated. The shape memory composite (SMC) belt composed of SMA tapes and a shape memory polymer (SMP) was fabricated, and the three-way bending characteris…
The SrMgB 6 O 11 glass samples were synthesized by a solid-state reaction route. Luminescence of SrMgB 6 O 11 :Eu 2+ ,Mn 2+ shows a broad blue emission band and a red emission band, which originates from Eu 2+ occupying the Sr 2+ sites and Mn 2+ occupying the Mg 2+ sites, respectively. The obtained samples exhibit a t…
Novel red phosphors Na(Y 1− x Eu x )(Si 1− y Mo y )O 4 were developed for white light emitting diode applications and their luminescent properties were investigated in detail. The results indicated that NaY 1− x Eu x SiO 4 samples can be effectively excited by near-ultraviolet light (393 nm) and the introduction of Mo…
The emeraldine base (EB) was synthesized by chemically oxidative polymerization using ammonium persulphate as an oxidant in hydrochloride aqueous medium. The polymer was chemically deposited on mild steel specimens using tetra methyl urea (TMU) as solvent through solvent evaporation method. The coating of polypyrrole…
One of the novel technologies for vascular prosthesis design is melt electrospinning. The solvent–free approach allows to model electrospinning without the complications associated with solvent evaporation or the risk of a potential adverse, toxic reaction, both local and systemic. However, many tissue-engineers wish…
We have previously demonstrated that chitosan derivative N-octyl-O-sulfate chitosan (NOSC), which presents important pharmacological properties, can suspend single walled carbon nanotubes (SWNTs) up to 20 times more effectively than other chitosan derivatives in an aqueous environment. In an attempt to further investi…
Coal ash/polyethylene oxide (ash/PEO) composite films were prepared by the solution casting technique. Scanning electron microscopy (SEM) micrographs indicated that the ash particles were dispersed and embedded well within the polymer matrix. The size of the ash particles in the PEO matrix was less than 3 \mu m. The p…
The electrosynthesis of Rh(2)(dpf)(4)(R) where dpf is the N,N'-diphenylformamidinate anion and R = CH(3), C(2)H(5), C(3)H(7), C(4)H(9) or C(5)H(11) was carried out in THF containing 0.2 M tetra-n-butylammonium perchlorate (TBAP) and one of several alkyl iodides represented as RI. The initial step in the reaction invol…
Btzn (1), an amine-functionalized bi(1,3,5-triazine) 4,4'-(NH(2))(2)-6,6'-(NHC(6)H(5))(2)-2,2'-(1,3,5-C(3)N(3))(2), is reported, and its coordination with Co, Ni and Cu is explored. Reactions of metal salts (2 equiv) with Btzn (1 equiv) result in dimeric species [(Btzn)Co(2)(NCS)(4)(EtOH)(2)(DMF)(2)], (2), [(Btzn)Ni(2…
Pressure-composition isotherms of TiC1−x–H system were measured at 773, 873 and 973 K over a pressure range from 10−2 to 105 Pa. The obtained isotherms could be divided in three concentration regions. In the low concentration region in which [H]⁄[TiC]≤1.4×10−3, Sieverts’ law held, and the solubility of hydrogen clearl…
The glass properties and semi crystalline properties of polymers are observable by X‐ray diffraction. Some previous works 1, 2, 3 were about determination of degree of crystallinity of sPS by various technologies, like for example DSC, XRD and Raman spectroscopy. The purpose of this paper is to show importance of Rama…
Textile laminates with breathable membranes are used extensively in waterproof clothing items such as jackets, footwear and gloves. The polymer membranes act as a barrier to liquid water and soil entry from the environment, but they are sufficiently permeable to water vapour to allow significant amounts of sweat to ev…
Currently, the light has shed on the ecological-friendly products. The mulberry products, especially hand-made paper, are wildly facilitated as general wares or decoration. The research on the lamination of the mulberry paper with biodegradable films can ameliorate the usability, corresponding to the modernisation and…
We have developed a facile colorimetric glucose detection method based on an organic Fenton reaction. The color of the solution gradually turned from pale yellow to purple along with the increase of glucose concentration.
The whole plant, Pergularia daemia (Family: Asclepediaceae), was extracted with 50% alcohol and a fresh batch of the plant material was successively extracted with petroleum ether, ethyl acetate and n-butanol to determine its diuretic activity. The diuretic activity of the different extracts at a dose of 400 mg/Kg was…
We have found a new structural transition in Pb(2)MnReO(6) at 410 K. Above this temperature, Pb(2)MnReO(6) is cubic with disordered and dynamic atomic displacements manifested in the large thermal parameters of Pb and O atoms. Below 410 K, the antiferrodistortive shift of 2/3 of Pb(2+) cations away from the high-symme…
Electron field-shaping cerrobend cutouts on the linear accelerator applicator have some effects on the output and percentage depth dose. These effects which arise from the lateral scatter nonequilibrium are particularly evident in higher energies and in cutouts with smaller radius. Dose measurements for circular, squa…
Titania is a very important material for various applications and its properties are expected to be improved by controlling the crystallographic orientation. In this study, we demonstrated that the c-axes of both rutile and anatase were aligned parallel to a magnetic field and we investigated the effect of the orienta…
The dealloying of rapidly solidified Mg–Ag alloys with 50–65 at% Mg was performed in HCl solution. The precursor alloys are composed of a single MgAg phase with different vacancy content which exhibits dominant influence on the dealloying process. A vacancy-controlled dealloying mechanism is proposed based on a layer-…
The formation of Pd/Au surfaces and their catalytic performance toward oxygen dissociation were investigated using periodic density functional methods. We show that Pd can readily incorporate into the second layer of Au(100) and Au(111) substrates with the assistance of Au vacancies. Pd/Au(100) exhibits better catalyt…