Materials Literature
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Abstract In our previous study (Kiuch et al., J Appl Polym Sci 2008, 107, 3823), poly(ethylene glycol) (PEG) cross‐linked chitosan hydrogel films with various PEG to chitosan ratio and PEG molecular weight have been successfully prepared and their thermal, mechanical and swelling properties at acidic pH were studied.…
Clothing pressure of knitted fabrics was estimated by two methods using an air pack. In Case 1, the pressure by shrinkage of extended fabrics was measured by an air pack put on the cylinder, in which the air pack was inserted between the knitted fabric extended to a desired strain and the cylinder as a basic substance…
Natural fibers traditionally used for cordage are proving valuable for advanced industrial applications due in part to beneficial physical and chemical properties, but also because they are a renewable and biodegradable resource. Kenaf ( Hibiscus cannabinus L., Malvaceae) produces high yields of lignocellulosic bast f…
Finding phosphotyrosine: Phosphotyrosine (either in its monomeric form or as a component of oligopeptides) was selectively detected by using luminescence in the presence of a specialized terbium(III) complex, without any signals from nonphosphorylated tyrosine, phosphoserine, phosphothreonine, nucleotides, or nucleic…
Anodic aluminum oxide (AAO) with matrix arrays of pores was obtained using nanoimprint and anodizing. Si3N4 imprint stamps were fabricated using electron-beam lithography. The Si3N4 stamps were imprinted into Al films grown on Si wafers by applying a force of 250 kg for 10 s. Two different diameters (45 and 80 nm) and…
Sr 0.5 Ba 0.5 Bi 2 Nb 2 O 9 ferroelectric ceramics exhibit a complex dielectric behavior, showing typical relaxor behavior. The relaxation processes are described by the Cole–Cole model [K. S. Cole and R. H. Cole, J. Chem. Phys. 9, 341 (1941)]. At temperatures below 490 K, the dielectric relaxation is associated to th…
Abstract (1− x )(K 0.5 Na 0.5 )NbO 3 − x BiScO 3 doped with 1 mol% CuO (KNN‐BS‐Cu‐ x ) lead‐free piezoelectric ceramics were prepared by the solid state reaction technique. With the CuO doping, all the ceramics can be well sintered at 1090–1150 °C and exhibit a perovskite structure. After the substitution of BiScO 3 ,…
Samples of Pb1−xMnxSe nanocrystals were synthesized by fusion method and characterized by optical absorption, atomic force microscopy, x-ray diffraction, and electron paramagnetic resonance (EPR) techniques. Effects of Mn2+ ion incorporation into PbSe nanocrystals are manifested by well resolved optical spectra for di…
This paper presents models of yarn cross-sectional shape in plain woven fabric. Various yarn and fabric parameters, including fiber type, yarn count, yarn twist factor, and cover factor, were used as control factors to produce fabrics with known properties. New algorithms were successfully developed from the real fabr…
Abstract Environmental stress crack resistance (ESCR) is a commonly used test to characterize cracking failure of high‐density polyethylene in applications such as wires, cables, blow molded containers, and other rigid packaging applications. From a resin design standpoint, it is important to understand the mechanism…
The substrate temperature effects on the amorphous carbon film growth were investigated, by using the deposition rates and in situ and “real-time” infrared spectroscopy in multiple internal reflection geometry. The deposition rates were decreased, in contrast with the increases of substrate temperature. The growth mod…
The H atom has a large incoherent scattering cross section and is a major source of incoherent scattering intensity, (dΣ/dΩ) inc , in small-angle neutron scattering. By taking account of multiple scattering from H atoms, a useful method (the transmission method or T method) is proposed for the estimation of (dΣ/dΩ) in…
Hexagonal WO3 nanowires were prepared on Si substrate by thermal evaporation of WO3 powder. A single WO3 nanowire was assembled on a pair of Pt electrodes by electric field assembly. The electrical transport behavior indicates that the back-to-back SBs structure is formed, which show nonlinear and asymmetric I-V prope…
Abstract A population balance model for predicting the dynamic evolution of crystal shape distribution is further developed to simulate crystallization processes in which multiple crystal morphological forms co‐exist and transitions between them can take place. The new model is applied to derive the optimal temperatur…
Specific character of the dynamics of field-driven structural defects in surface stabilized ferroelectric liquid crystals with the chevron geometry is investigated under an external alternating electric field. The nature of dynamic defect modes (relaxation, creep, slide, and switching) and transitions between them is…
The trigonal zigzag nanodisk with size $N$ has $N$ localized spins. We investigate its thermodynamical properties with and without external leads. Leads are made of zigzag graphene nanoribbons or ordinary metallic wires. There exists a quasiphase transition between the quasiferromagnet and quasiparamagnet states, as s…
A silicone-based one-transistor nonvolatile memory cell has been implemented by integration of a ferroelectric polymer gate on a standard n-type metal oxide semiconductor field effect transistor. The polarization reversal in the gate results in a stable and reproducible memory effect changing the source-drain current…
Adhesion promotion between copper-epoxy interfaces without roughening the copper substrates is critical for new generation electronic devices. This paper demonstrates a pronounced adhesion promotion of a copper-epoxy joint from 4.8 J m−2 for the untreated samples to 159 J m−2 for the interfaces prepared with a thiol-b…
A photovoltaic (PV) device based on “high-work-function metal/single-walled carbon nanotube/low-work-function metal” hybrid junction has been studied theoretically by the self-consistent nonequilibrium Green’s function approach. The PV effect and power conversion efficiency (η) of the device under light illumination a…
In this study a self-reorganization strategy is applied to prepare near-infrared Hg 1− x Cd x Te nanowire networks. CdTe nanoparticles (NPs) self-reorganized into Hg 1− x Cd x Te nanowire networks by taking advantage of the synergic effect of chemical replacement inside NPs and physical attraction between NPs. The dip…