Materials Literature
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Integrated polypyrrole, a conductive polymer, interconnects on polymeric substrates were microfabricated for flexible sensors and actuators applications. It allows manufacturing of moving polymeric microcomponents suitable, for example, for micro-optical-electromechanical (MOEMS) systems or implanted sensors. This gen…
In this paper new software is introduced to calculate the non-uniform electric field resulting from a protrusion of the earthing shield for underground cables. The problem is simulated by hyperbolic needle-to-plane electrodes which produce a very high non-uniform electric field causing the growth of electrical tree. T…
On the basis of the electronic structures obtained by first-principles calculations, we have studied the half-metallicity of a (111) film of the Heusler compound Fe 2 CrSi, which is predicted to be a half-metallic ferromagnet in its bulk. The result shows that a film with a surface consisting of Si atoms holds a perfe…
Polarization and Depolarization Current (PDC) testing is a non-destructive dielectric testing method to determine the conductivity of insulations. It is one of the dielectric diagnostic techniques based on time domain measurement. PDC measurement technique has gained immense popularity due to its ability to assess the…
To investigate how, and to what extent, the following factors influence burn damage: (1) the angle of application of the ignition source to the sample surface, and (2) the flow rate for the ignition source, when assessing samples in accordance with ISO 8191-2:1988. Varying the ignition source flow rate and the angle o…
Abstract A series of five new conjugated polythiophene (PT) derivatives containing piperidinyl groups as a side chain were synthesized by ferric trichloride oxidization. All of the polymers were soluble in common organic solvents, and their high regioregularity were confirmed by 1H‐NMR. The weight‐average molar masses…
The Fourier-matching pseudospectral modal method (PSMM(f)) was developed to improve the original point-matching pseudospectral modal method that uses the analytic Rayleigh expansions. Granet’s new implementation of the pseudospectral modal method is interesting, but PSMM(f) remains useful for multilayer grating stacks.
Abstract Cavity expansion theory has been widely adopted by many researches in predicting penetration depth of objects under impact. The main purpose of this paper is to construct two models, each comprising different damaged zones based on the cavity expansion theory, to predict the target resistance when regarding t…
Abstract Review: 93 refs.
The flow stress of AZ41M (Mg-Al-Zn-Mn-Ca) and ZK 60 (Mg-Zn-Zr) wrought magnesium alloys under the deformation conditions of twin rolling casting and hot compression at different temperature and strain rates was studied. Deformation behavior and failure mechanism of them were discussed. Microstructure evolutions were a…
It is traditional to call a quasi-symmetric design with certain parameters an SDP design if the symmetric difference of two different blocks is either a block or a block complement. In this note, we delete the requirements on the parameters and demand just that the symmetric difference of two blocks be a block, a bloc…
Electrospinning is a commonly used and versatile method to produce scaffolds (often biodegradable) for 3D tissue engineering.1, 2, 3 Many tissues in vivo undergo biaxial distension to varying extents such as skin, bladder, pelvic floor and even the hard palate as children grow. In producing scaffolds for these purpose…
Four novel 27‐ and 29‐membered oxaazacyclophanes were synthetized via the high dilution method in moderate to good yields, employing aromatic dialdehydes and diamines as precursors to generate first the corresponding cyclic Schiff bases, which were then reduced in almost quantitatively yields to the corresponding macr…
Abstract Highly crystalline, nearly monodisperse 25 nm sized bismuth pseudocubes are prepared by a low temperature thermolysis reaction of Bi2Et4 in the presence of Na[N(SiMe3)2] and poly(1‐vinylpyrolidone)‐graft‐(1‐triacontene) (50 °C, 4 h).
U 3 Co 4 Ge 7 and U 3 Co 2 Ge 7 have been prepared as single crystals by the solution growth method from tin flux and studied by X-ray diffraction, magnetic, transport, and specific-heat measurements; ab initio electronic-structure calculations have also been performed to study magnetism theoretically. U 3 Co 4 Ge 7 h…
J. Amer. Ceram. Soc., 95 [2] 600–606, February 2012. doi: 10.1111/j.1551-2916.2011.05001.x The caption for Fig. 3 is incorrect and should read: Fig. 3. Effect of nitrogen substitution for oxygen on Glass Transition Temperature (Tg) for fluorine contents of 0, 1, and 5 equiv% (lines correspond to values calculated usin…
Abstract This study focuses on the determination of a protocol for the production of a hybrid material composed of a polymer and a macrocyclic complex, namely polystyrene and a tetra‐tert‐butyl‐copper phthalocyanine (Cu[(tBu)4Pc]), in order to obtain a layer thickness of about 100 nm and a controlled porosity in a hig…
We demonstrate periodic nanostructures emerged in homogeneously cross-linked thin gels made of strongly charged polymers. Free-energy functional of polyelectrolyte gels with density and charge inhomogeneities is developed and numerical energy minimization is performed over candidate nanostructures. The two-dimensional…
In contrast to earlier micro-electro discharge and typical carbon nanotube preparation methods, the one-pulse discharge method can be used to prepare carbon nanotubes on graphite by using a peak current ( I p = 2.5 A) and a pulse duration (τ=1400µs) under an atmospheric environment without requiring high peak current.…
Abstract In this study, we have synthesized and characterized Li4Ti5O12 (LTO)‐coated meso‐carbon micro beads (MCMB) as an anode material for Li‐batteries. The surface of MCMB powders was uniformly coated by the LTO nanoparticles to form a core‐shell structure via a sol‐gel process, followed by calcination. The average…