Materials Literature
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The effect of microstructural refinement and intercritical annealing on the mechanical properties and work-hardening response of a low carbon St12 steel was studied. It was revealed that intercritical annealing of the ferritic-pearlitic sheet results in the formation of a coarse-grained DP microstructure with discrete…
Новые технологии, Химическая промышленность, Химическая технология, Научные журналы, Защита РѕС‚ РєРѕСЂСЂРѕР·РёРё, Технология металлов, Свойства материалов, Технические журналы, Наук…
A new class in the open unit disc of analytic p -valent functions is introduced in this paper. This subclass S^{ m,j}_{λ,p} ( a_ 1 ,b_ 1 ,α,β,A,B,γ ) is mainly defined by the generalized hypergeometric function. The majorization properties for the functions in this class are introduced. Moreover, we investigate the co…
The spectral problem of the internal mode oscillations of a spin nanocluster in an anisotropic ferromagnetic chain placed a magnetic field has been solved exactly using the discrete Takeno-Homma model. A stability diagram on the plane of exchange and magnetic field parameters is constructed for spin clusters having ar…
Glucose hydrogenation using water at solvent was happened trough two step.First, water was reduced to hydrogen and a oxygen gases by TiO 2 pillared bentonite.Second, hydrogen that produced was used to reduce glucose into sorbitol.The reaction was prepared in transparency medium for 30 days along under UV from sunlight…
The possibilities of magnetooptical sensors based on ferrite garnet films with various types of magnetic anisotropy are studied in the visualization of eddy current images of linear defects in the test object from aluminum alloys. Potentially high efficiency of sensors based on an easy-plane anisotropy films is shown.
In article number 1805606 Hu Young Jeong, Jae Sung Lee, Jong-Beom Baek, and co-workers report the preparation of iridium (Ir) nanoparticles uniformly distributed on a 3D cage-like organic network (3D CON)-structured electrocatalyst for the hydrogen evolution reaction (HER). The Ir@CON electrocatalyst outperforms comme…
We investigate the impact of electron-beam irradiation (doses of 3–18 kGy) on polyamide/polyethylene (thickness of 80 μm), a multilayer polymer film material. Irradiation is performed on a compact unit for radiation sterilization with local bioprotection. We study the changes in the physicomechanical properties and ba…
A mathematical model formulated as a system of Hamilton-Jacobi equations describes implicitly the propagation of a foam-liquid front in an oil reservoir, as the zero-level set of the solution variable. The conceptual model is based on the 'pressure-driven growth' model in Lagrangian coordinates. The Eulerian mathemati…
This work describes the synthesis of fluorescent poly(acid lactic) (PLA)‐polyethylene glycol (PEG) block copolymers by using the Ugi multicomponent reaction (MCR). Specific aldehyde end‐functionalized PLA (PLA‐COH) and carboxylic acid end functionalized PEG (PEG‐COOH) with different molecular weights were synthesized…
Effect of brittle plate-like Al5FeSi iron phases in secondary (scrap-based - recycled) AlZn10Si8Mg cast alloys with different amount of iron (0.150 wt. % and 0.559 wt. %) on microstructure, mechanical properties (UTS, YTS, ductility and Brinell hardness) and fracture surface were studied. Standard, colour and deep etc…
The crystal structure of an antimony(III) fluoride complex of the composition (C 5 H 12 NO 2 )SbF 4 ·H 2 O ( I ) involving a cation of α-amino isovaleric acid ( DL -valine, Val) is determined. Crystals are monoclinic: a = 12.2024(2) Å, b = 6.1636(1) Å, c = 15.5167(3) Å, Z = 4, space group P 2 1 / c . The structure is…
Ionic mobility in solid solutions Pb 0.9 Bi 0.1 F 2.1 , Pb 0.9 In 0.1 F 2.1 , and Pb 0.9 Bi 0.05 In 0.05 F 2.1 with the fluorite structure is studied with the 19 F NMR method at 150–470 K. Temperature regions associated with local motions in the fluoride sublattice of these solid solutions are determined. The ratio of…
Abstract The determination of material strength parameters from structural test measurements yields in general an inverse problem. The measured test values are e.g. loads and displacements applied on the specimen. The unknown material parameters are e.g. local stress values at particular strain states. Naturally, mate…
Abstract In this work, a detailed experimental study on the influence of fluid properties on the droplet behavior subjected to a shear flow and harmonic surface vibration is conducted. The experiments were executed in a rectangular channel and an acrylic channel wall was utilized to analyze the droplet wetting behavio…
Our efforts to build devices that integrate and interact intimately with biology have led to concepts such as “biofabrication” and “4D printing,” exhibiting the desire to mimic nature and indeed incorporate natural products into structures that provide enhanced function, especially in their ability to interact with, s…
Abstract Supported monometallic Fe/SiO2 and bimetallic Fe–Cu/SiO2 catalysts were synthesized by incipient wetness impregnation. The synthesized catalytic systems were studied in selective hydrogenation of phenyl-acetylene with molecular hydrogen under mild reaction conditions (H2 pressure 1.3 MPa, 80–110°C). The catal…
Abstract The adsorption properties of SO2 molecule on the surface of pyridinic nitrogen doped graphene (4NG), M/4NG and M/2NG (M = Al, Li, Si) are investigated using density functional theory. The adsorption energies have been calculated for the most stable configurations of the molecule on the surface of 4NG, M/4NG,…
Abstract The combination of plasticity theory and continuum damage mechanics facilitates the description of hardening and softening material behavior, accumulation of inelastic strains, and stiffness degradation due to damage. For regularizing softening material behavior in finite element simulations, the enrichment o…
The relativistic generalization of the linearized drift kinetic equation solver NEO-2 is presented which is used for computation of neoclassical transport coefficients and the generalized Spitzer function in 3D toroidal fusion devices (tokamaks and stellarators). This upgrade allows computations of the Spitzer functio…