Materials Literature
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Sr1-xBaxBi2Nb2O9 (x = 50 and 90 mol%) ferroelectric bi-layered perovskites exhibit a complex dielectric response, showing typical relaxor behavior with strong dispersion of the dielectric permittivity. The Cole-Cole model describes the relaxation processes. Two relaxation processes are analyzed considering: i) the rel…
A low-temperature atmospheric pressure plasma jet was used for chemical reduction of fused silica. For this purpose, a hydrogen-containing plasma was applied. A silicon suboxide layer was generated and hydrogen was implanted into the bulk material. Changes in stoichiometry, concentration of hydrogen and optical transm…
A theoretical study is made of the process of nanocrystallization upon the formation of shear bands created by megaplastic deformation in amorphous metallic alloys. Such nanocrystallization is shown to be caused by a considerable increase in temperature inside the shear bands, which in turn is associated with the stor…
We have developed a novel anode for microbial fuel cells (MFC) which exhibits effective direct electron transfer with Acetobacter aceti. A high surface area nickel electrode was obtained using a simple process of template electrodeposition and it significantly improved the bioelectrocatalytic activity of Acetobacter a…
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The effects of step changes in the concentration of HCO 3 − , Cl − and SO 4 2− on copper pitting propagation in simulated potable waters were investigated. HCO 3 − and Cl − additions were found to stifle propagation of previously established pits. Raising the applied potential could restart pit growth temporarily. In…
This paper presents a novel all-digital approach applied to three-phase four-wire active power filter (APF), which is made up of three-phase four-leg voltage source converters. The controller just detects the main current and DC side capacitor voltage. Calculation method of the switch duty cycle is deducted on the bas…
This communication describes a new type of alloyed Cd-In-S quantum dots (CdIS QDs) with ultra small particle size and broadly tunable fluorescence emission from 450 to 700 nm. The band gap of CdIS QDs was mainly controlled by their composition rather than their particle size. The CdIS-ZnS core-shell nanocrystals exhib…
While many studies of heterogeneous chemistry on Cr(2)O(3) surfaces have focused on its catalytic activity, less is known about chemistry on this surface under atmospheric conditions. We report here studies of the thermal and photochemical reactions of NO(2) on Cr(2)O(3) at one atm in air. In order to follow surface s…
Positive margins have been a critical issue that hinders the success of breast- conserving surgery. The incidence of positive margins is estimated to range from 20% to as high as 60%. Currently, there is no effective intraoperative method for margin assessment. It would be desirable if there is a rapid and reliable br…
This review is performed mainly to study and summarize the research scenario on carbon nanotube aluminium matrix nano-composite (CNT-AMC) prepared by powder metallurgy route for a wide variety of applications such as aerospace, automobile and sport equipment industries. Many research have been carried out in utilizing…
A series of mixed oxidation state compounds, [{Rh(2)(acam)(4)}(3)(μ(3)-X)(2)]·nH(2)O (Hacam = acetamide; X = Cl, n = 4 (1·4H(2)O); X = Br, n = 10 (2·10H(2)O); X = I, n = 10 (3·10H(2)O)) and [{Rh(2)(pram)(4)}(3)(μ(3)-X)(2)]·6H(2)O (Hpram = propionamide; X = Cl (4·6H(2)O), Br (5·6H(2)O), I (6·6H(2)O)) were synthesized a…
Among metallic biomaterials, titanium, its alloys and stainless steel AISI 316 LVM are of high importance and are widely used as surgical implants. Since these implants are designed to remain inside the body for a long time and are subjected to fluctuating high loads, it is important to consider fatigue properties. Th…
Binding of Zn(II) by the ditopic ligands L1py, L2py and L1para, composed of a cyclam unit linked to the linear polyamines 1,4,8,11-tetraazaundecane (L1py and L2para) and 1,4,7-triazaheptane (L2py) via a 2,6-dimethylpyridinyl (L1py and L2py) or a 1,4-dimethylbenzyl spacer (L2para), has been analyzed by means of potenti…
This paper gives an overview of statistical inference for disordered sphere packing processes. These processes are used extensively in physics and engineering in order to represent the internal structure of composite materials, packed bed reactors, and powders at rest, and are used as initial arrangements of grains in…
The cytotoxicity of the carbon nanotubes (CNTs) is an important factor for the manufacture of nanovaccines. The aim of this work was to evaluate the relationship of the purification method of CNTs in cellular toxicity using macrophages (MOs) from the J774 cell line. Viability test was performed with MTT assays at 24 h…
A host–guest complex, [FeIII(H3L)][FeIII(L)][CrIII(ox)3]·3H2O (1), where H3L and L3− serve as hexadentate ligands, was prepared. In 1, three properties are united: the homochiral assembly of chiral [FeIII(H3L)]3+ and [FeIII(L)] into a conglomerate structure, the chiral recognition of the host FeIII assembly to the gue…
The directed growth of precipitates proceeds in their parent phases at low transformation temperatures. The growth needs the activation energy. The activation energy is usually supplied in the form of thermal energy. However, at low transformation temperatures, the thermal energy is not enough to surmount the activati…
While flammable materials are operated in process industries, the electric equipments should be explosion-proof to reduce the possibility of a fire or an explosion. Auto-ignition temperature (AIT) of a flammable material is the primary characteristic in determining the specifications of these explosion-proof equipment…
Higher order magnetoelectric effects dominate in disordered multiferroics with broken translational symmetry such as multiglassy Sr0.98Mn0.02TiO3, antiferromagnetic quantum paraelectric EuTiO3, relaxor ferroelectric antiferromagnetic Pb(Fe0.5Nb0.5)O3, and antiferroelectric antiferromagnetic CuCr1-xInxP2S6. The E 2 H 2…