Materials Literature
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In the study, it is aimed to experimentally and statistically compare the results of selected three different water absorption test methods and for this purpose, terry fabrics having different physical properties and pretreated with sodium hydroxide were used as samples. Correlation and curve estimation analyses were…
Spatial variability of bias‐dependent electrochemical processes on a (La 0.5 Sr 0.5 ) 2 CoO 4± δ modified (La x Sr 1– x )CoO 3–δ surface is studied using first‐order reversal curve method in electrochemical strain microscopy (ESM). The oxygen reduction/evolution reaction (ORR/OER) is activated at voltages as low as 3–…
We show that the unstable splittings of the spaces in the Omega spectra representing BP , BP hni and E.n/ from [12] may be obtained for the real analogs of these spectra using techniques similar to those in Explicit calculations for ER.2/ are given. 55N20, 55N22; 55N91
Exchange bias has been studied in various Ni50Mn36.8Sb13.2/CrN heterostructures with different CrN thicknesses (15 nm–80 nm), grown on Si (100) substrate using magnetron sputtering. The shift in hysteresis loop up to 51 Oe from the origin was observed at 10 K for Ni-Mn-Sb film without CrN layer. On the other hand, a s…
Metal–dielectric multilayer metamaterials with extreme loss-anisotropy, in which the longitudinal component of the permittivity tensor has an ultra-large imaginary part, are proposed and designed. Diffraction-free deep subwavelength beam propagation and manipulation, due to the nearly flat iso-frequency contour, is de…
The potential of rupture-oxide mushroom phase-change memory cells is assessed through 2-D finite element analysis using electro-thermal models with temperature-dependent material parameters, coupled with a circuit model for access transistors. The mushroom cell structure used for the simulations consists of a 100-nm t…
The kinetics of the reaction of cotton linter pulp with acetic anhydride catalyzed by sulfuric acid at temperatures ranging from 30 to 45 °C have been investigated. A kinetic model considering the dissolution of the sufficiently sulfated cellulose chains on the surface of the solid fibers, and the subsequent reactions…
High-angle annular dark-field scanning transmission electron microscopy (HAADF STEM) in a scanning electron microscope facilitates the acquisition of images with high chemical sensitivity and high resolution. HAADF STEM at low electron energies is particularly suited to image nanoparticles (NPs) in thin cell sections…
The stability of a negatively charged polyethylene-structured [GaH2]n(n-) cluster ion was investigated by varying the K(+)/Rb(+) ratio in ((K(x)Rb(1-x))n[GaH2]n (0 ≤ x ≤ 1). Neutron, X-ray, and IR spectroscopies were used to characterize the new phases. Between the limiting compositions Kn[GaH2]n and Rbn[GaH2]n, the […
ABSTRACT In this study, the poly( N ‐isopropylacrylamide‐methylacrylate acid)/Fe 3 O 4 /poly( N ‐isopropylacrylamide‐methylacrylate acid) (poly(NIPAAm‐MAA)/Fe 3 O 4 /poly(NIPAAm‐MAA)) two‐shell magnetic composite hollow latex particles were synthesized by four steps. The poly(methyl methacrylate‐ co ‐methylacrylate ac…
Solutions of the quaternary ammonium salts of a set of classic polyoxometalates (POMs) (Keggin [XM12O40](n-), Dawson [P2W18O62](6-), and Lindqvist [M6O19](2-) (X = P, Si; M = W, Mo) were characterized by electrospray mass spectrometry. The gas-phase fragmentations of a series of quaternary ammonium-associated clusters…
A new homologous series of thermotropic liquid crystalline (LC) poly(arylidene−ether)s based on 4-methyl cyclohexanone moiety was synthesised by solution polycondensation of 4,4′-diformyl-α,ω-diphenoxyalkanes, Ia−f or 4,4′-diformyl−2,2′-dimethoxy-α,ω-diphenoxyalkanes IIa−f with the 4-methyl-cyclohexanone monomer. A mo…
In living systems, extracellular matrix (ECM) plays a pivotal role in controlling cell behavior [1]. One of the most significant objectives in tissue engineering is to design and obtain scaffolds with the ability of biomimicking natural ECM in chemical compositions, physical structure, and biological functions [2,3].…
The solubility of rare-earth orthoborates and LaSc 3 (BO 3 ) 4 in LiBO 2 -LiF solvents has been studied. Spontaneous crystals have been grown and the solvent used has been shown to be attractive for the growth of bulk crystals at t ≤ 1000°C. The α- and γ-phases of LaSc 3 (BO 3 ) 4 have been shown to be identical.
In this paper, we systematically discuss a novel planar metamaterial absorber (PMA) based on asymmetrical snowflake-shaped resonators, which can exhibit two distinctly different absorption states, single- and dual-band absorptions, by controlling the branch lengths of the proposed resonators. Numerical simulations and…
Protein crystallization conditions that resulted in crystal structures published by scientists at the MRC Laboratory of Molecular Biology (MRC-LMB, Cambridge, UK) have been analysed. It was observed that the more often a crystallization reagent had been used to formulate the initial conditions, the more often it was f…
Nanomaterials composed of a population of particles dispersed in a matrix represent the building block for the next generation of several technologies: energy storage and conversion, thermal management, electronics, and photovoltaics. When interfaces between particles and matrix are imperfect, the size of the particle…
ABSTRACT A series of side‐chain liquid‐crystal polymers, poly[6‐[4‐(4′‐ n ‐alkyl benzoateazo)phenoxy]‐hexylmethacrylate]s (PMAzoCOOR m , m = 1, 2, 3, 4, 5, 6, 8, 10, 14, and 18) have been prepared by two synthetic methods. The chemical structure of the monomers was confirmed by 1 H NMR and mass spectrometry. The molec…
Spatially inhomogeneous strains in graphene can simulate the effects of valley-dependent magnetic fields. As demonstrated in recent experiments [N. Levy et al., Science 329, 544 (2010) and K. K. Gomes et al., Nature (London) 483, 306 (2012)], the realizable magnetic fields are large enough to give rise to well-defined…
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