Materials Literature
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Molecular dynamics calculations are reported for structural transition of a compressed Ag nanoparticle containing 2123 atoms with a crystal structure during the processes of continuously applied load at room temperature. Analytical tools are used to demonstrate the effect of the load on the packing patterns in this de…
Abstract The addition of dialkyl phosphite (methyl, ethyl and n‐butyl) to methyl linoleate (MeLin) double bonds was investigated. The reaction proved to be more challenging than the analogous reaction with methyl oleate (MeOl), due to inhibition of the radical reaction by the bis‐allylic hydrogens of MeLin and the low…
The quantum chemical study of one-, two-, and three-photon absorption (1PA, 2PA, and 3PA) properties for a set of compact fluorene derivatives (FD) with combination of different donor and acceptor moieties on both sides of fluorene ring system is presented. The main goal of the study is to pack large two-photon (2P) a…
The objective of this study was to prepare ibuprofen (IBP) microparticles by pH-change method and enhance the dissolution rate in vitro. Tween80 and Cremophor RH40 were selected as stabilizers to change the microparticles morphology. The microparticles were evaluated by dissolution profiles and characterized by differ…
We investigate the effect of isotope substitution on the electron-phonon interaction in the multiband superconductor ${\mathrm{MgB}}_{2}$ using tunable laser-based angle-resolved photoemission spectroscopy. The kink structure around 70 meV in the $\ensuremath{\sigma}$ band, which is caused by electron coupling to the…
In electric power steering (EPS), spoke type brushless ac (BLAC) motors offer distinct advantages over other electric motor types in terms of torque smoothness, reliability and efficiency. This paper deals with the shape optimization of spoke type BLAC motor, in order to minimization cogging torque. In this paper exam…
In this study, we aimed to create the nano-micro hierarchical surface structures on Ni and analyze their optical second harmonic generation (SHG) response. The hierarchical surface structures were found to significantly modify the optical nonlinearity of the metal surface. The macroscopic symmetry of the surface’s sha…
A high tolerance to oxidation of Ru nanoparticles loaded on 12CaO·7Al 2 O 3 (C12A7) was examined by in situ X-ray absorption fine structure (XAFS). Ru nanoparticles on electron-doped C12A7 (C12A7:e – ) and stoichiometric C12A7 (C12A7:O 2– ) are robust to oxidation, while those on Al 2 O 3 and on MgO with Cs promoters…
In this paper, a new method is proposed for the determination of Coulomb's friction coefficient directly from cylinder compression tests. It is based on measuring the immigrated contact area (ICA), which is defined as the lateral surface that comes into contact with the platens after deformation. Preliminary sensitivi…
The impact of metal-to-metal interface on electric-field modified magnetic anisotropy in MgO/Fe/non-magnetic metal (Ta, Pt, Au) is revealed by density functional calculations. We demonstrate that the contribution from the metal-to-metal interface can be strong enough to dominate the electric field effect on magnetic a…
BACKGROUND: In recent years, ultraviolet (UV) ageing of asphalt has attracted worldwide attention from researchers in the asphalt field. The UV radiation can result in the ageing of asphalt and thus influence its performance. So far, a variety of UV blocking materials have been investigated. AIM: In this paper, layere…
Ferrocene-terminated self-assembled monolayers (SAMs) have been widely studied in the past quarter century to reveal the electrochemical properties of chemically modified electrodes. It has been well-known that the formal potential of the system strongly depends on the local environment of the ferrocene moiety. Althou…
Nitrite reductase (NiR) activity was examined in a series of dicopper P.a. azurin variants in which a surface binding copper site was added through site-directed mutagenesis. Four variants were synthesized with copper binding motifs inspired by the catalytic type 2 copper binding sites found in the native noncoupled d…
We describe here a resonance light scattering (RLS) method for uranium (VI) detection by using phosphorylethanol-amido-salophen (PAS) as optical probe. PAS is a tetradentate–monodentate ditopic ligand in which the tetradentate and monodentate ligands are salophen moiety and phosphate group, respectively. PAS can chela…
The kinetics of the thermal chemistry of methylcyclopentadienyl manganese tricarbonyl on copper surfaces was followed by infrared absorption spectroscopy analysis of the gas surrounding the substrate. Dissociative adsorption of the MeCpMn(CO) 3 precursor was seen at low temperatures, below 400 K, and was determined to…
The pressure dependence of electrical resistance of single-crystal magnetite (Fe3O4) was measured under quasi-hydrostatic conditions to 100 GPa using low-temperature, megabar diamond-anvil cell techniques in order to gain insight into the anomalous behavior of this material that has been reported over the years in dif…
A new series of heteroleptic bismuth-transition metal β-diketonates [BiM(hfac)3(thd)2] (M = Mn (1), Co (2), and Ni (3); hfac = hexafluoroacetylacetonate, thd = tetramethylheptanedionate) with Bi:M = 1:1 ratio have been synthesized by stoichiometric reactions between homometallic reagents [Bi(III)(hfac)3] and [M(II)(th…
A mathematically rigorous framework combining diffusion map analysis techniques with simulation data from electromagnetic transient programs is proposed to characterize the collective dynamics of transient processes. The framework can be used to compress and analyze large and complex data sets obtained from transient…
We present an efficient and robust method which performs well for both strain limiting and treatment of simultaneous collisions. Our method formulates strain constraints and collision constraints as a serial of linear matrix inequalities (LMIs) and linear polynomial inequalities (LPIs), and solves an optimization prob…
In this study, we employed pressurized creep tubes to investigate the biaxial thermal creep behavior of Inconel 617 (alloy 617) and Haynes 230 (alloy 230). Both alloys are considered to be the primary candidate structural materials for very high-temperature reactors (VHTRs) due to their exceptional high-temperature me…