Materials Literature
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Membrane is an important part in fuel cell. It should have high proton conductivity and low ethanol permeability to ensure high performance. Nafion membrane is commonly used For Direct Ethanol Fuel Cell (DEFC) since it has highest proton conductivity compared with other membranes.
AIMS: To investigate the association between type II collagen fragments and the presence of knee osteoarthritis (OA) in the Tunisian population and to determine whether this biomarker can predict X-ray progression of this disease. METHODS: Type II collagen C-telopeptide (uCTX-II) and helical peptide (sHelix-II) were a…
In this paper, a potassium-deficient K0.66V3O8 with nanobelt morphology was synthesized by a facile and large-scale hydrothermal method and its electrochemical performance as cathode material for Li- ion battery was investigated. As indicated by the scanning electron microscopy (SEM), the nanobelts show a width of ~80…
PMMA/ In2O3 nanocomposite films for photoinduced nonlinear optics were synthesized. 50% (w/v) solution of PMMA (Mw = 100.000) was prepared in chloroform (purity >99%, from SD Fine Chemicals, Mumbai) and stirred for ca 15 h. To the viscous solution so obtained, appropriate quantity of In2O3 nanoparticles was added with…
Adv. Funct. Mater, 2014, 24, 6700–6707 Figure 3d is incorrectly given in the originally published article. This note provides a correction of the unintentional mistake in Figure 3. The authors sincerely apologize for this mistake. The corrected Figure 3 is as follows:
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Nanofluid is an emerging technology in heat transfer study. The effect of nanofluids as a cooling medium in liquid cooled Proton Exchange Membrane Fuel Cell (PEMFC) is studied. Nanofluids with 0.1% and 0.5% volume concentration of Al2O3are dispersed in base fluid of 50:50 mixture of Ethylene Glycol and water were anal…
The Timed Photon Counter 'Tipsy' detector relies on electron-emitting thin films for generation of primary electrons from a photocathode and the subsequent amplification via SiN dynodes. Both of these films represent materials challenges, and both are being investigated using synchrotrons to optimize their performance…
A new isomer, not previously detected, is the kinetic product of the octabromination (NBS, CH 2 Cl 2 , rt, 60 W Vis irradiation) of p-tert-butylcalix[8]arene octamethyl ether. On the basis of the signal pattern in the NMR spectrum, and the splitting of methoxy signals in the presence of a chiral solvating agent, the i…
The crystal structure of bis(4-benzoyl-3-methyl-1-phenyl-4,5-dihydro-1 H -pyrazol-5-onato)-(ethanol)-dioxourane(VI) ethanol solvate [UO 2 L 2 (C 2 H 5 OH)]·C 2 H 5 OH ( I ), where HL is 4-benzoyl-3-methyl-1-phenyl-4,5-dihydro-1 H -pyrazol-5-one, is determined. The asymmetric part on the unit cell of the crystal struct…
Water quality was assessed 11 sites on the Sinchun Stream, in the region of Daegu City (South Korea), from May 2007 to March 2008 using Diatom Assemblage Index to Organic Water Pollution (DAIpo) and Trophic Diatom Index (TDI). The reference sites were unaffected by effluent from a closed mine or treated sewage and had…
In a permanent magnet brushless (PMBL) motor, any special structural design in the stator lamination may induce asymmetry in the magnetic circuit to result in intrinsic imbalanced force. Likewise, an asymmetrical phase winding arrangement may also induce imbalanced force in the motor when the armature currents are flo…
The nanoscale thin film morphologies of a series of interesting miktoarm star polymers composed of a highly rigid and crystallizable poly(n-hexyl isocyanate) (PHIC) arm and one to three flexible and crystallizable poly(epsilon-caprolactone) (PCL) arms were investigated using synchrotron grazing incidence X-ray scatter…
A miniaturized triple band Artificial Magnetic Conductor (AMC) Antenna system is presented. The AMC is designed at 430MHz, 688MHz, and 1GHz featuring minimum mutual coupling between unit cell elements by incorporating guard conductors. Miniaturization is achieved using lumped element loading and a unit cell of 0.03λ,…
In order to improve the coercivity of hot-pressed magnets with hydrogenation disproportionation desorption recombination (HDDR) powders being the precursor, diffusion processing of an NdCu eutectic alloy is employed for grain boundary modification, resulting in an increase of coercivity from 15.4 to 17.8 kOe, which le…
Magnetic nanogranular FeCoTiO films have been deposited by radio frequency magnetron cosputtering. By simply adjusting the thickness of films, the imaginary permeability spectrum of FeCoTiO films changed from a single ferromagnetic resonance peak to double resonance peaks. Based on this phenomenon, multilayered [FeCoT…
Microstructural investigations of granular perpendicular recording media based on stacked CoPt-alloy layers were carried out using high-resolution transmission electron microscopy (HRTEM). In the structure investigated, a thin layer of CoPt with high Pt concentration was inserted to meet the thermal stability requirem…
Abstract In this contribution, we briefly review the results of collaborative research between crystallography groups in St. Petersburg and Kiel, and report on the synthesis and crystal structure of Tl16(SiO4)2(SO4)(OH)6 (1), a new and unusual compound obtained from highly-alkaline TlOH solution. Its structure [monocl…
In this paper, we report the intrinsic characteristics of conducting polymer for gas-sensor at high frequency region, i.e., 500 MHz to 10 GHz. To investigate the high-frequency characteristics of conducting polymer (CP), a coplanar waveguide electrode (CPW) is utilized. First, a CPW without CP, i.e., an open CPW, is s…
Presently, fission chamber technology utilizes neutron-sensitive coatings often composed of radioisotopes that are becoming increasingly difficult to obtain. Using only natural uranium and thorium, a maximized stable device lifetime in a constant neutron flux can be obtained by optimizing the regenerative fission cham…