Materials Literature
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Cardanol, a renewable agro-byproduct, can be substituted for phenol in phenol–formaldehyde resin (PF). However, resins made solely from cardanol have inferior mechanical properties. In this study, we synthesised a number of phenol–cardanol–formaldehyde (PCF), phenol–formaldehyde (PF) and cardanol–formaldehyde (CF) res…
Abstract The possibility of introducing hydrolytically cleavable ester linkages onto the poly( N , N ‐dimethylaminoethyl methacrylate) for the formation of less toxic and degradable polycations is shown in this work. For achieving this aim, the copolymerization behavior of 5,6‐benzo‐2‐methylene‐1,3‐dioxepane (BMDO), w…
The electronic transport behaviors of (Ni0.36Nb0.24Zr0.40)100−yHy (0≤y≤20) glassy alloys with distorted nanostructural icosahedral Zr5Nb5Ni3 clusters have been studied as a function of hydrogen content. These alloys show semiconducting, room-temperature superior electric transport, superconducting (onset temperature o…
During the past few years, graphics processing units (GPUs) have become extremely popular in the high performance computing community. In this study, we present an implementation of an acceleration engine for the solvent-solvent interaction evaluation of molecular dynamics simulations. By careful optimization of the a…
We investigated the electronic properties of ZnO nanowire combined with the scaled high-k Al2O3 dielectrics using metal-oxide-semiconductor and field effect transistor (FET) device structures. We found that Al2O3 dielectric material can significantly reduce leakage currents when the applied voltage was restricted less…
Constitutive modeling of silicon materials is currently restricted to the very early stage of deformation. Uniaxial tensile testing of monocrystals oriented for single glide is traditionally simulated by a scalar model relying on the so-called machine equation. The present work uses a crystal plasticity framework to i…
An optimum nanomicro structure of LiFePO 4 / o -polyacene (LiFePO 4 /O-PAS) with a high proportion of ortho linkages has been constructed using special processing technologies. O-PAS produces a thin, uniform conductive network because of its unique structure with low-branching and long-range order. The nanomicro struc…
In our previous study, we experimentally studied the effects of changes in the viscosity of the displaced more-viscous liquid by instantaneous reactions on miscible viscous fingering pattern [Y. Nagatsu, K. Matsuda, Y. Kato, and Y. Tada, “Experimental study on miscible viscous fingering involving viscosity changes ind…
Abstract Hydroxyapatite (HA) is a well‐established graft material used in bone repair. Silicon‐substituted hydroxyapatite (SA; 0.8 wt% Si) has shown greater bone ingrowth and bone coverage than phase pure HA. To assess the effect of microporosity on sensitivity of cell attachment to surface physiochemistry, microporou…
New measurements show that long-wavelength (kθρs<0.5) electron temperature fluctuations can play an important role in determining electron thermal transport in low-confinement mode (L-mode) tokamak plasmas. In neutral beam-heated L-mode tokamak plasmas, electron thermal transport and the amplitude of long-wavelength e…
Thermochemical reactions occurring in various stages of structural transformations of native lignin in its thermal treatment in a wide temperature range are considered and classified. Attention is given to the initial state of lignin in its primary isolation without heating. The terminology of lignin products, used in…
Life Cycle Assessment (LCA) is a tool that can be used to identify ways to decrease the environmental impact of a product or process and to inform decision makers of the consequences of changes to the product or process. LCA encompasses all aspects of a process or product from “cradle to grave”, including material ext…
Electrostatic charging mechanism in aged oil-immersed transformers is investigated. Sulfonium ions, which are generated by sulfoxide compounds and hydrogen ions, are identified as the prime compounds that increase electrostatic charging tendency (ECT) of mineral insulating oil. Sulfoxide compounds are generated by the…
The cation disorder in stoichiometric and congruent lithium niobate crystals and also in congruent crystals doped with Y 3+ or Gd 3+ has been studied by X-ray diffraction and Raman scattering spectroscopy using vacancy models. The results indicate that the structural disordering induced by doping with Y 3+ , revealed…
In this study, the effect of swift heavy ion irradiation on the magnetic properties of the Pd nanoparticles has been investigated. Structural investigations along with superconducting quantum interface device measurements show that ferromagnetic properties of the Pd nanoparticles are due to the deviation of their elec…
Abstract. The ammonoids from the Teguentour Shales (Tournaisian, Early Carboniferous) of Oued Temertasset (Mouydir, Algeria) are described monographically. The following new ammonoid taxa are introduced: Imitoceras dimidium n. sp., Imitoceras strictum n. sp., Triimitoceras tantulum n. sp., Acrocanites disparilis n. sp…
We carried out a thorough study of the micromorphology, physicochemical properties, and photocatalytic activity of nanocrystalline anatase powders formed during the hydrothermal treatment of titanyl sulfate solutions of various compositions. A new procedure is proposed for the hydrothermal synthesis of nanocrystalline…
The promise, status and challenges of developing fusion power are outlined. The key physics and engineering principles are described and recent progress quantified. As the successful demonstration of 16 MW of fusion in 1997 in the Joint European Torus showed, fusion works. The central issue is therefore to make it wor…
The variations with temperature of the lattice parameters a(T) and c(T) and the thermal expansion coefficients of rare-earth diborides RB2(R=Tb, Dy, Ho, Er, Tm, Lu) have been investigated in the temperature range 4.2—300 K. It has been revealed that the dependences a(T) and c(T) exhibit an anomalous behavior in the vi…
Two wire tandem submerged arc welding (SAW-T) involves application of two electrode wires to form a single weld pool with one wire leading the other along the weld interface. Realisation of the influences of the lead and trail wire currents on the weld bead morphology and the weld strength are important in SAW-T. The…