Materials Literature
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The compatibilization by olefin block copolymer (OBC) in the blends of polypropylene (PP)/ethylene-propylene-diene terpolymer (EPDM) and the phase morphology of the ternary blends were investigated by rheology, scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and wide-angle X-ray diffraction…
Isoenzyme c of horseradish peroxidase (HRP-C) is widely used in enzyme immunoassay combined with chemiluminescence (CL) detection. For this application, HRP-C activity measurement is usually based on luminol oxidation in the presence of hydrogen peroxide (H2O2). However, this catalysis reaction was enhancer dependent.…
A chemosensor derived from R6G was prepared and introduced to polyamide (PA). The as-prepared PA showed high sensitivity to some heavy metal ions. Both the color and the fluorescence changed immediately after the addition of heavy metal ions.
We investigate orientational nematic liquid crystal structures that form at the polymer surface due to adsorption, their stability against the schlieren texture and features of point and linear singularities in them. We demonstrate that surface disclination lines, which also occur due to molecular adsorption, can lead…
The regular hyperbranched polymers (RHPs), also known as Vicsek fractals, are an important family of hyperbranched structures which have attracted widespread attention during the past several years. In this paper, we study the first-passage properties for random walks on the RHPs. Firstly, we propose a way to label al…
It is shown in a new class of pyrochlore compound YMn2Zn20-xInx (with x = 2.36) that the spin fluctuation rate (v) is proportional to temperature (v ∝ T) below T0 ~10 K where heavy-fermion(HF)-like behavior is observed. Such a linear T dependence, commonly found in Y(Sc)Mn2 and LiV2O4, is expected for intersecting qua…
A new method is presented here for digesting irradiated low-enriched uranium foil targets in alkaline carbonate media to recover 99 Mo. This method consists of the electrolytic dissolution of uranium foil in a sodium bicarbonate solution, followed by the precipitation of carbonate, base-insoluble fission products, act…
Although stoichiometric lithium cobalt dioxide LiCoO 2 (ST-LCO) is the most common positive electrode material for Li-ion batteries, the magnetic nature of ST-LCO is still not fully understood. Therefore, we measured susceptibility (χ), electron paramagnetic resonance (EPR), and μ SR for ST-LCO, particularly above 100…
Effect of source frequency and pulsing on the SiO2 etching characteristics of dual-frequency capacitive coupled plasma, Kim, Hoe Jun, Jeon, Min Hwan, Mishra, Anurag Kumar, Kim, In Jun, Sin, Tae Ho, Yeom, Geun Young
SUMMARY Nowadays, with the growing use of atomic force microscope (AFM) nanorobots in the fabrication of nanostructures, research in this area has proliferated. A major limiting factor in the utilization of AFM nanorobots is the lack of real-time monitoring. Computer simulations have been widely used to improve the fe…
Using high-energy ball milling, we obtained nanocrystalline nonstoichiometric NbC y niobium carbide powders. The crystal structure, microstructure, and particle size distribution of the starting and milled powders were determined using X-ray diffraction, laser diffraction, and scanning electron microscopy. Experimenta…
The parallel components of static electric dipole polarizabilities have been calculated for the lowest lying spin-orbit states of the penta- and hexavalent oxidation states of the actinides (An) U, Np, and Pu, in both their atomic and molecular diyl ion forms (An(5+/6+) and AnO2 (+/2+)) using the numerical finite-fiel…
The structural, elastic and electronic properties of BaZnO2 under pressure are investigated by the plane wave pseudopotential density functional theory (DFT). The calculated lattice parameters and unit cell volume of BaZnO2 at the ground state are in good agreement with the available experimental data and other theore…
We present a detailed μ SR study of the recently synthesized compound, [NH 4 ] 2 [C 7 H 14 N][V 7 O 6 F 18 ] (DQVOF), a geometrically frustrated magnetic material, both in longitudinal and transverse configurations. The μ SR measurements in zero and longitudinal field show that there is no spin freezing down to 20 mK…
The adsorption of binary mixtures with non-additive lateral interactions has been studied through grand canonical Monte Carlo simulations in the framework of the lattice-gas model. The traditional assumption of additive lateral interactions is replaced with a more general one including non-pairwise interactions. It is…
The low-temperature microscopic magnetic properties of the quasi-2D heavy- fermion compound, CePt 2 In 7 are investigated by using a positive muon-spin rotation and relaxation ( μ + SR) technique. Clear evidence for the formation of a commensurate antiferromagnetic order below T N ≈ 5.40 K is presented. The magnetic o…
Great interest is given now to advanced nuclear reactors especially those using passive safety components. The Westinghouse AP1000 Advanced Passive pressurized water reactor (PWR) is an 1117 MWe PWR designed to achieve a high safety and performance record. The AP1000 safety system uses natural driving forces, such as…
On the basis of coupled Ginzburg-Landau equations we study nonhomogeneous states in systems with two order parameters (OPs). Superconductors with a superconducting OP $\ensuremath{\Delta}$ and a charge- or spin-density wave with amplitude $W$ are examples of such systems. When one OP, say $\ensuremath{\Delta}$, has a…
A blend of (poly[(9,9-bis((6′-(N,N,N-trimethylammonium)hexyl)-2,7-fluorene)-alt-(9,9-bis(2-(2-(2-methoxyethoxy) ethoxy)ethyl)-9-fluorene))] dibromide (WPF-6-oxy-F) and graphene oxide (GO) is investigated as a hole transporting layer for low-cost poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][…
The combination of advanced functionalization methods for surface modification and dispersion of carbon nanotubes (CNTs) and electrochemically triggered strategies for coagulation and film formation allowed efficient electrodeposition of CNTs by cathodic and anodic methods. The electrochemical methods involved the app…