Materials Literature
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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…
Extensive use of carbon nanotubes (CNTs) in industry and in the consumer market including drug delivery will increase the likelihood of human exposure and the contamination of the ecosystems. The aggregation state of CNTs has a strong influence on their fate and transport in the environment, as well as their bioavaila…
This paper presents an investigation into the delamination toughening and selfhealing properties of carbon-epoxy laminates using through-thickness stitches of mendable thermoplastic (poly[ethylene-co-(methacrylic acid)]). The effect of increasing stitch density on the improvement to the interlaminar fracture toughness…
Increasing the Al concentration in Al-doped ZnO (AZO) is one way of improving the conductivity of this transparent conductive oxide (TCO). Beyond a certain concentration, an unwanted secondary phase develops with a low conductivity. Its stoichiometry is Zn3Al2O6, and its crystal structure has not yet been convincingly…
Graphene is a two dimensional one atom thick allotrope of Carbon. Electrons in grapheme behave as massless relativistic particles. It is a 2 dimensional nanomaterial with many peculiar properties. In grapheme both integral and fractional quantum Hall effects are observed. Many practical application are seen from use o…
Auger-electron-emitting radioisotopes provide a unique tool that enables the targeted irradiation of a small volume in their immediate vicinity. Over the last forty years, Auger emission has been established as a promising form of molecular radiotherapy, and it has recently made the transition from the laboratory to t…
Corrosion of storage tank product side bottoms and tanks of tankers is one of the most critical problems worldwide in oil and gas industry.The protection methods currently in use include cathodic protection systems (CPS) and soluble corrosion inhibitors (SCI).Crude oils contain water and various soluble inorganic and…
CP-Ti and Ti-153 were adopted in this study to observe their electrochemical behavior in serving as the cathode for photovoltaic hydrogen production. The designed cyclic hydrogenation-solution heat treating processes were performed to increase the hydrogen uptake for both alloys. The results are as follows. (1) Both a…
Structural and relaxat ion aspects of plasticizat ion on the examp le of cellulose acetate plastics are studied. Three types of plasticizat ion are examined: the p lasticizer is miscible with the poly mer at processing and operating temperatures; the plasticizer is miscible with the poly mer at processing temperature…
The functionalized pyrrole copolymers were fabricated by electropolymerization of pyrrole (Py) and functionalized pyrrole monomers, pyrrole-3-carboxylic acid (P3C) and 4-(3-pyrrole) butyric acid (PBA). The electrochemical behavior and doping/dedoping properties of the obtained copolymer thin films were investigated by…
Abstract—This paper presents a frequency domain technique for reconstructing the constitutive parameters of inhomogeneous planar layered chiral media based on an optimization approach. The measured co- and cross-reflection and transmission coefficients are used to extract profiles of electromagnetic parameters of the…