Materials Literature
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Kinetics of aluminium spreading on nikel for brazing condithions is studied. Wetting and flowing (spreading) of aluminium on nickel are investigated. Aluminium is wetted nickel well and flowed limitedly. Flowing of aluminium on nickel is activated process. This process includes some stages. Energy of activating and wo…
Structure of transition zone and mechanism of interaction between aluminium and nickel under brazing conditions are investigated.
The V-notch (standard ASTM D5379-93) shear test was investigated for determining the in-plane shear modulus. With purpose of lateral response exception the new scheme of test with specimen symmetrical loading is offered. For standard and modified schemes the comparative finite element analysis of state in a specimen's…
The cost of second-hand machines and equipment may be described by mathematical models of exhibitor function of probability of non-failure operating, which are received with use of the current information of the second-hand machines market.
In work on the basis of the analysis of the special literature and sociological researches the major factors influencing process of perception of advertising are revealed. The degree of influence of advertising on consumers is defined. It is proved, that the social - psychological approach to advertising activity enab…
The article describes the criteria and algorithms of the automated adjustment of the equipment of resource tests of quickwearing details of the industrial equipment.
In the article is given representation of the resolvent for generalized differential operator with generating function in the space of holomorphic functions.
The iron carbide $Fe_3C$ is studied by the first-principle density functional theory. It is shown that the crystal structure with the carbon disposition in a prismatic environment has the lowest total energy and the highest energy of magnetic anisotropy as compared to the structure with carbon in an octahedron environ…
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How to store hydrogen efficiently, economically and safely is one of the challenges to be overcome to make hydrogen an economic source of energy. This paper presents an overview of present hydrogen storage technologies, namely, high-pressure gas compression, liquefaction, metal hydride storage, and carbon nanotube ads…
Abstract The recent advance of p‐type transparent conductive oxide thin films is reviewed. The focus is on p‐type transparent oxide semiconductors CuAlO 2 , CuGaO 2 , CuInO 2 , SrCu 2 O 2 , and LaCuOCh (Ch = chalcogen). These materials and related device applications are then shown as examples. Room temperature operat…
In previous work, we demonstrated that 4-fluoroproline residues can contribute greatly to the conformational stability of the collagen triple helix, and that this stability arises from stereoelectronic effects that fix the pucker of the pyrrolidine ring and thereby preorganize the backbone properly for triple-helix fo…
We report the observation of urchin-like nanostructures consisting of high-density spherical nanotube radial arrays of vanadium oxide nanocomposite, successfully synthesized by a simple chemical route using an ethanolic solution of vanadium tri-isopropoxide and alkylamine hexadecylamine for 7 days at 180 °C. The resul…
Multiferroic Bi (1− x ) La x FeO 3 was synthesized by a modified Pechini approach. Optimal conditions for the synthesis of single‐phase Bi (1− x ) La x FeO 3 powder were reported. A conventional sintering process was used to fabricate Bi (1− x ) La x FeO 3 ceramics. Ferroelectric and magnetic loops measured at room te…
The unique and exceptional physical properties of carbon nanotubes have inspired their use as a filler within a polymeric matrix to produce carbon nanotube polymer composites with enhanced mechanical, thermal and electrical properties. A powerful method of synthesising nanofibers comprising these polymer composites is…
It has been recently shown that the memory of multiple aging stages, a phenomenon considered possible only below the glass transition of some glassy systems, appears also above that temperature range in the relaxor ferroelectric (Pb/La)(Zr/Ti)O_3 (PLZT). Doubts exist whether memory at such high temperature is intrinsi…
Diamond is studied by path integral molecular dynamics simulations of the atomic nuclei in combination with a tight-binding Hamiltonian to describe its electronic structure and total energy. This approach allows us to quantify the influence of quantum zero-point vibrations and finite temperatures on both the electroni…
Capillary waves occurring at the liquid-vapor interface of water are studied using molecular dynamics simulations. In addition, the surface tension, determined thermodynamically from the difference in the normal and tangential pressure at the liquid-vapor interface, is compared for a number of standard three- and four…
This article reviews the various theoretical approaches that have been developed for determination of the surface tension of solids, and the applications to food industrial products. The surface tension of a solid is a characteristic of surface properties and interfacial interactions such as adsorption, wetting or adh…
The preparation and characterization of nitric oxide (NO)-releasing dendrimer conjugates are reported. Generation 3 and 5 polypropylenimine dendrimers (DAB-Am-16 and DAB-Am-64) were modified at the exterior to impart different amine functionalities. The ability to store NO on a dendritic scaffold using N-diazeniumdiol…