Materials Literature
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The structure and electrical properties of two-dimensional (2D) sheets of silicon on a graphene substrate are studied using first-principles calculations. Two forms of corrugated silicon sheets are proposed to be energetically favorable structures. A shift of the Fermi energy level is found in both corrugated structur…
Using single-layer CVD graphene, a complementary field effect transistor (FET) device is fabricated on the top of separated back-gates. The local back-gate control of the transistors, which operate with low bias at room temperature, enables highly tunable device characteristics due to separate control over electrostat…
Since carbon nanotube (CNT) was first discovered in 1991, it has been considered as a viable type of conductive filler for electromagnetic wave absorption materials in the GHz range. In this paper, pearl-necklace-structure CNT/Ni nano-powders were fabricated by a polyol process as conductive fillers. Compared to synth…
Superparamagnetic iron oxide nanoparticles (SPIONs) are recognized to be an attractive platform for developing novel drug delivery approaches and thus several types of functionalized magnetic nanocarriers based on SPIONs have been synthesized and studied. The coating of the metal oxide surface was achieved in a one-po…
Single crystals of urea-oxalic acid (UOA) have been grown from aqueous solution by slow evaporation technique. Single crystal X-ray diffraction analysis confirmed that the grown crystals belong to monoclinic system having space group P21/C. The presence of functional groups was confirmed by using Fourier transform inf…
For the purpose of applying hot-dip Zn-6%Al-3%Mg alloycoated steel sheet (“Zn-Al-Mg”) to automotive parts, wecompared and investigated the corrosion resistance of Zn-Al-Mg and ordinary materials treated using a conventionalrustproofing method (“post-Zn-coated material”) exposedto accelerated corrosion test environment…
Cholesteric liquid crystals based on polymers are attractive because of their film‐forming properties. However, their optical properties (sharpness and directionality of the selective reflection) are usually lower than low molar mass compounds because of a polydomain structure and an angular distribution of the helix…
Abstract The templated borate, [C 9 H 14 N] · [B 5 O 6 (OH) 4 ], was synthesized under hydrothermal conditions. Single crystal X‐ray diffraction techonology reveals that it crystallizes in the triclinic system, space group P $\bar{1}$ (No. 2). The material was also characterized by element analysis, Fourier transform…
A hybrid system that combines a solid oxide fuel cell (SOFC) with a proton exchange membrane fuel cell (PEMFC) is presented in this paper. The SOFC stack acts as both an electricity producer and the fuel reformer for the PEMFC stack to generate additional power. A thermoeconomic model for the design optimization of a…
Elastic properties of fcc phases of soft polydisperse spheres, interacting through inverse‐power pair potentials , where r is the distance between sphere centers, have been studied by Monte Carlo (MC) simulations in the NpT ensemble with variable shape of the box. The simulations show that both the size polydispersity…
Abstract A thorough study on the thermoelectric potential of the layered compound SnBi 2 Te 4 is presented. Phase range studies on SnBi 2 Te 4 , unit cell parameters by powder X‐ray diffraction, and electronic structure calculations (both LDA and GGA functional) were performed. Physical property measurements regarding…
This paper presents a study carried out with the commonly used experimental techniques of ballistic pressure measurement. The comparison criteria were the peak chamber pressure and its standard deviation inside specific weapon/ammunition system configurations. It is impossible to determine exactly how precise either c…
A composite was obtained from cellulosic agricultural waste material ( Sorghum vulgare ) coated with conducting polypyrrole by in situ polymerization using potassium persulfate as chemical oxidant. The composite was characterized by Raman spectroscopy, FTIR spectroscopy, scanning electron microscopy (SEM), and cyclic…
Abstract A MnCu‐mixed oxide catalyst supported on a cordierite monolith was synthesized. The catalyst showed very good stability and high homogeneity and presented an excellent catalytic activity in the combustion of ethyl acetate, n‐ hexane, and its mixture. The total conversion temperature of the mixture was determi…
The structural aspects of the metastable states for K${}_{0.32}$Co[Fe(CN)${}_{6}$]${}_{0.76}\ifmmode\cdot\else\textperiodcentered\fi{}$3H${}_{2}$O have been investigated by synchrotron x-ray powder diffraction. The title compound exhibits nonequilibrium high spin (HS) states of Co${}^{\mathrm{II}}$($S=3/2$)-Fe${}^{\ma…
A new 3d–4f bimetallic coordination polymer {[Ce2Cu3(oda)6 (H2O)3]·4H2O}n (1) (H2oda = oxydiacetic acid) has been hydrothremally synthesized and structurally characterized by single-crystal X-ray diffraction, elemental analyses, magnetism, fluorescence, and EPR spectroscopies. The compound crystallizes in hexagonal cr…
Nucleoside diphosphates linked to moiety X (Nudix) hydrolase functions were investigated in hypoxic Aspergillus nidulans cells. Among three nudix hydrolase isozymes, NdxA transcription was up-regulated under oxygen (O2)-limited conditions. A gene disruptant of the NdxA-encoding gene (NdxAΔ) accumulated more NADH and A…
The water-soluble and biocompatible D-glucuronic acid coated Eu(OH)3 nanorods (average thickness x average length = 9.0 x 118.3 nm) have been prepared in one-pot synthesis. The D-glucuronic acid coated Eu(OH)3 nanorods showed a strong fluorescence at approximately 600 nm with a narrow emission band width. A cytotoxici…
The structure and electrical properties of two-dimensional (2D) sheets of silicon on a graphene substrate are studied using first-principles calculations. Two forms of corrugated silicon sheets are proposed to be energetically favorable structures. A shift of the Fermi energy level is found in both corrugated structur…
The research initially involved the decoration of silver nanoparticles on carbon nanotubes using N,N-dimethylformamide. A new heteroaromatic azo-polymer was prepared and employed as a matrix while Ag–CNTs as filler. Two techniques were exploited to prepare nanocomposites (i.e., melt compounding and solution mixing). T…