Materials Literature
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In this study, K shell X-ray fluorescence cross-sections (σKα, σKβ and σK), K shell fluorescence yields (ωK) and K to L shell vacancy transfer probabilities (ηKL) of ferromagnetic 3d transition metals (Fe, Co, Ni) were investigated to understand how the relationship between ferromagnetism and these values changes with…
RESUMO Revestimentos metálicos podem ser aplicados para diferentes finalidades, como exemplo, para melhorar as propriedades mecânicas, catalíticas, anticorrosivas ou simplesmente melhorar o aspecto decorativo. Neste trabalho foram obtidas ligas de Ni-Fe pelo processo de eletrodeposição utilizando um banho eletrolítico…
Electrical and mechanical properties of the blend un saturated polyester – poly methyl methacrylate (UPE – PMMA) after consolidation nanoscale zinc oxide in terms of weight percentage have been studied. Mechanical – layup Liquid mixture method to prepare polymer blend coupled with ultrasonic technique to distribution…
In recent years, hybrid nanomaterials of graphene and polyaniline have attracted extensive interest and have been considered as promising electrode materials for supercapacitor combining the advantages of both materials with synergistic effects. In contrast to the well-developed two-dimensional planar structure of gra…
The electrical conductivity of exfoliated graphite in water nanofluids has been experimentally determined, and compared with the same property when the dispersed nanosheets have been oxidized. The effect of oxidation on this property is different if compared with the case of sintered dry nanosheets. In any case, for t…
Reducibilities of wüstite and calcio-wüstite have been examined using high temperature X-ray diffraction analysis including the effect of hydrogen on the reducibility. Fe2O3 reagent powders and hematite ore powders were used for reduction of wüstite (denoted as FeO) and sintered ore powders were used for reduction of…
The optical and electrical properties of Si rich SiC (SRSC) solar cell absorber layers will strongly depend on interfacial layers between the Si and the SiC matrix and in this work, we analyze hitherto undiscovered interfacial layers. The SRSC thin films were deposited using a plasma-enhanced chemical vapor deposition…
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The photophysical properties of neutral, monocation radical, and dication of dithiadiazuliporphyrin have been examined with a particular focus on their aromaticity.
) via hydrogen bonding between Cu atoms; this coupling was also confirmed by electron spin resonance experiments. Thermochromic behavior was also observed for the complex.
The electron spin resonance (ESR) linewidth of the milled powder decreases as a function of increasing temperature. On the other hand, the intensity of the signal increases with increasing temperature from 108 K to 243 K and subsequently approaches Curie-like temperature behavior above 245 K. These behaviors were unde…
The morphology and composition of four types of two-phase alkali borosilicate glasses with magnetic atoms prepared by inductive melting have been studied. The results of scanning electron microscopy point to uniform distribution of Na, Si, and O atoms in these samples while magnetic iron atoms form ball-shaped agglome…
Unstrained carbon-carbon single bonds are ubiquitous in organic compounds, the cleavage of this bond is one of the most significant and challenging subject in organic chemistry. Oxidative cleavage of unstrained carbon-carbon single bond has become a great tendency, in particular, the transition metal-catalyzed oxidati…
In this paper we introduce and apply the method for determination of the glass transition temperature of the sub-100 nm thick freestanding and supported polymer films based on thermally assisted atomic force microscopy (AFM). In proposed approach changes of the phase of an oscillating AFM cantilever are used to determ…
In this study, we fabricated E-glass fibers and alkali-resistant (AR)-glass fibers with a 7 mass% zirconia content, and AR-glass fibers with a 7 mass% zirconia and 30–50 mass% refused coal ore content. The obtained fibers were characterized for their tensile strength and alkali-resistant properties after dipping the f…
Rare earth ions-doped hexagonal β-Na(Y,Yb)F 4 nanorods can be coated perfectly with either optically active or inert shells to improve and/or tailor the upconversion emission through a one-step epitaxial growth method from α-phased nanoparticles.
The translocation of a polymer chain through a crowded cylindrical channel is studied using the Langevin dynamics simulations. The influences of the field strength F , the chain length N , and the crowding extent ρ on the translocation time are evaluated, respectively. Scaling relation τ~F-α is observed. With the crow…
Thermal protective garment has been deemed as an important shielding against fire hazard and inflammable gas leakage. The coupling model of thermal protective garment, air-gap, and human body has been widely established, but the heat transfer in air-gap was commonly simplified, resulting in inaccurate results. This pa…
This article will discuss some of the general considerations on the complexity of Nanotoxicology (NT). The real scope of Nanotoxicology involves many processes. Nanotoxicology is an emerging discipline evolving from studies of ultrafine particles called the nano-particles (NP). The small size facilitates uptake into c…
The Fo-a subunit of the Na+-transporting FoF1 ATP synthase from Propionigenium modestum plays a key role in Na+ transport. It forms half channels that allow Na+ to enter and leave the buried carboxyl group on Fo-c subunits. The essential Arg residue R226, which faces the carboxyl group of Fo-c subunits in the middle o…