Materials Literature
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Cable shovel is a primary excavation unit in many surface mines around the world. The capacities of the shovels have seen an ever increasing trend to achieve the economies of large scale operation. The modern day shovels have 100+ tons per pass production capacities. The dynamic force of 100+ ton material combined wit…
BACKGROUND: Barrett's esophagus (BE) affects up to 12 million Americans and confers an increased risk for development of esophageal adenocarcinoma (EAC). EAC is often fatal unless detected early. Given the high prevalence, high cost of surveillance and relatively low risk of most affected individuals, identification o…
The multiple applications of gold nanorods (AuNRs) are most effective if the longitudinal surface plasmon resonance (SPR) can be simultaneously excited in all the involved AuNRs. This can be achieved in well aligned ensembles of AuNRs, obtained by stretching AuNR-polymer composite films, as a possible method. One of t…
Nanoscale iron (Fe)–silica (SiO2) core–shell agglomerates were conveniently obtained via gas-phase hybridization of freshly produced Fe with SiO2 synthesized in an aqueous medium containing polyethyleneimine. Synthesized Fe–SiO2 agglomerates were employed as nanocarriers for gene transfection and magnetic cell pattern…
The effect of placing constant composition layers within a reverse graded Si 1−x Ge x virtual substrate is investigated and the dislocation dynamics are tracked throughout the heterostructure. Heterostructures are grown by reduced pressure chemical vapor deposition and are truncated at different points in the buffer t…
The paper is devoted to the analysis of the correlation effects and manifestations of general properties of 1D systems (such as spatial heterogeneity that is associated with strong density fluctuations, the lack of phase transitions, the presence of frozen disorder, confinement, and blocked movement of nuclear particl…
To determine the structure of a protein by X-ray crystallography, the protein needs to be purified and crystallized first. However, some proteins cannot be crystallized. This makes the average cost of protein structure determination much higher. Thus it is desired to predict the crystallizability of a protein by a com…
The controversy about the size dependence of the vacancy concentration in metal nanoparticles is here reconsidered in the framework of the statistical thermodynamics. The fractional concentration of vacancies in a spherically shaped metal nanoparticle is calculated by taking into account both the core and the surface…
Purpose: The purpose of the article is to examine surface properties of ceramic nanoparticles applied as fillers in composite materials of polymeric warps. Design/methodology/approach: For research there were used three types of ceramic micro and nano fillers: silver sodium hydrogen zirconium phosphate AlphaSan RC2000…
Abstract—A new design methodology for multi-band rectangular microstrip antenna using a metamaterial-inspired technique is proposed. The methodology uses the metal disk with SRR-shaped slot placed horizontally between the patch and the ground plane. With the introduction of the split ring, sub-wavelength resonance can…
We present quantum-mechanical evaluation of helium diffusion coefficient in the crystalline UO2 and ThO2. Parameters assignment of Schrodinger's equation were done using the crystal field potentials which were obtained ap- plying the density functional theory (DFT). Ab initio calculations were performed using the Wien…
Nonlinear buckling of bonded double-walled boron nitride nanotubes (DWBNNTs) under combined electro-thermo--mechanical loadings based on the nonlocal piezoelasticity theory and Euler--Bernoulli beam (EBB) model is presented in this paper. Coupled DWBNNTs are embedded in an elastic medium that is simulated as a Pastern…
Bilayer graphene nanoribbon is a promising material with outstanding physical and electrical properties that offers a wide range of opportunities for advanced applications in future nanoelectronics. In this study, the application of bilayer graphene nanoribbon in schottky‐barrier diode is explored due to its different…
Down scaling of complementary metal oxide semiconductor transistors has put limitations on silicon dioxide to be used as an effective dielectric. It is necessary to replace the SiO2with a physically thicker layer of oxides of high dielectric constant. Thus high k dielectrics are used to suppress the existing challenge…
A model consisting of short polymer segments, capable of self assembling to form a branched network through the interaction of their ends, is considered. We investigate the mechanistic origins of a shear induced isotropic–lamellar–columnar transition, reported earlier in this model for living polymers. We find that th…
Определены константы устойчивости молекулярных комплексов тетратозилатов мезо-тетракис(4метилпиридиний)порфирина кобальта и цинка с пиридином, пиперидином и креатинином
Nanoscale palladium (Pd) catalysts supported on XC-72 using a facile one-pot method with glutamate as an additive were synthesized. We found that small Pd nanoparticles with the average size of 3.2 nm dispersed on the surface of XC-72 were prepared through the addition of a certain amount of glutamate into the precurs…
Epitaxial In2O3 films with embedded Fe3O4 oriented nanocolumns were deposited by pulsed laser deposition (PLD) on Y-stabilized ZrO2 (111) substrates. The resulting films show ferromagnetism at room temperature with strong magnetic anisotropy, which can be attributed to the presence of Fe3O4 nanocolumns. Magnetotranspo…
A controversy exists among literature reports of constraints on elastic constants. In particular, it has been reported that embedded atom method (EAM) potentials generally impose three constraints on elastic constants of crystals that are inconsistent with experiments. However, it can be shown that some EAM potentials…
To implement specific guest responsivity, a hydrophobic cholesterol-based co-ligand, cholest-5-en-3-yl-4-isonicotinate (Cholpy), was incorporated into a two-dimensional Hofmann-type Co(II)Ni(II) coordination polymer. The chemically programmed structure successfully demonstrated the unique guest response with remarkabl…