Materials Literature
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Magnetic shape memory alloy (MSMA) is a new intelligent material that can produce large stain in magnetic field, and mean while has the shape memory function. Using these characteristics of MSMA, one can fabricate intelligent actuators for vibration control of structures. At first, the mechanism of deformation of MSMA…
The concept of t-bonded sets was briefly introduced by the second author in 1976 under the name of d-connected sets, though it has not received due consideration. This concept is a generalization of the concept of Delone (r, R)-systems. In light of the developments in the local theory for crystals that occurred since…
In the present paper, some novel opportunities for the development of high-efficient Si and III-V-based solar cells are considered: energy-saving environment friendly low-temperature technology of forming p-n junctions in Si (1), elaboration of structurally perfect GaAs/Ge/Si epitaxial substrates (2) and application o…
Critical size bone defects are orthopedic defects that will not heal without intervention or that will not completely heal over the natural life time of the animal. Although bone generally has the ability to regenerate completely however, critical defects need sort of scaffold to do so. In the current study, we propos…
suggest (a) that risk management has a major influence on the material selection process, (b) that negotiations of project boundaries in the ‘fuzzy’ pre-design phase has crucial influence on the risk management aspect of the material criteria activities, and (c) a lack of awareness that design briefs usually outline m…
Deformation microstructures developed by cold-rolling in Ti-added ultra low carbon steel have been investigated by the same site analyses for dislocation substructures and crystal orientation by employing the techniques of SEM-AsB and SEM-EBSD. Particular attention has been paid on the relationship between the charact…
Pt-Ni alloy thin films with various compositions were prepared by RF-magnetron sputtering, then their activity was evaluated. By combining a circular plate and rectangular plate of Pt and Ni as the target, Pt-Ni alloy thin films with various compositions were obtained. Although the oxygen reduction current of the Pt f…
Invisible near-infrared (NIR) to visible (VIS) upconversion (UC) emission of rare-earth doped ceramics is receiving much attention for transparent display applications. In this study, a new dual-wavelength (DW) NIR excitation scheme for the VIS-UC emission of Er3+ doped NaYF4 (NaYF4:Er3+) was proposed to achieve a hig…
α-Cyperone, a sesquiterpene compound represents 25.23% of the total oil and is the most abundant compound in Cyperus rotundus oil. Endothelial cell protein C receptor (EPCR) is a main member in protein C (PC) anti-coagulation system. EPCR could be shed from cell surface, and is mediated by tumor necrosis factor-α conv…
Abstract Present work investigated the degradation of phenol based on theoretical knowledge of bubble dynamic and experimental studies. Optimum parameters of theoretical knowledge such as initial concentration of phenol: 1.1 mole/L; concentration of additive: 2 g/L; liquid medium temperature: 35°C and pressure of liqu…
We developed new oxidative electrochromic materials based on triarylamines and benzidine. These were coated onto substrates and cured by UV irradiation to obtain polymer films. These materials emitted yellow, magenta and cyan colored light. In color devices using these materials, high transmittances of the uncolored s…
3,5-Diamino-4'-ethynylbenzanilide (1) was synthesized from 4-ethynylaniline and 3,5-dinitrobenzoyl chloride. Polyimides (PI-x) having ethynyl groups on the side were prepared from 1, 4,4'-oxydianiline (ODA), and various dianhydrides (x) by the usual two-step procedure that included ring-opening polymerization leading…
СВОЙСТВА ПРЕДНАПРЯЖЕННЫХ ИЗОТРОПНЫХ МАТЕРИАЛОВ ПРИ УЧЕТЕ УПРУГИХ МОДУЛЕЙ ВЫСШИХ ПОРЯДКОВ © 2017 г.Т.И.Белянкова 1 , В.В.Калинчук 1Аннотация.В рамках линеаризованной теории наложения малых деформаций на конечную статическую в системе координат Лагранжа исследовано влияние учета упругих модулей II, III и IV порядка перв…
The failure of corroding pipeline joints may induce severe consequences. However, maintenance is expensive due to the cost of excavating and repairing a single joint and typically a significant number of joints that need repair. It is central to develop an optimal cost-effective maintenance strategy that balances cost…
Crystallographic analysis was carried out on acicular ferrites (AFs) of steel that nucleated on B1-type compounds embedded in steels during the isothermal transformation from austenite (γ) to ferrite (α), and the orientation relationship between α, γ, and the compounds and the AF formation behavior were correlated by…
Void formation in semiconductors is generally considered to be deteriorating. However, for some systems, void formation and evolution are beneficial and can be used for the fabrication of novel nanostructures. In either scenario, the understanding of void formation and evolution is of both scientific and technical hig…
Efficient and sustainable methods of clean fuel production are needed in all countries of the world in the face of depleting oil reserves and the need to reduce carbon dioxide emissions. With hydrogen technology we can significantly reduce harmful emissions in air and water. However, a key missing element is a large-s…
The fabrication of High Density Polyethylene (HDPE)/ Acrylonitrile-butadiene rubber (NBR)/ Palm Pressed Fibre (PPF) composite were investigated. The effect of γ-Aminopropyltriethoxy Silane (APS) as coupling agent on the properties of HDPE/ NBR/ PPF composite were studied. The composites were melt mixed using heated tw…
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The article considers the question of physical modeling of stresses in a compound rotation body of a complex form with a complex loading distribution. According to the similarity parameters, the stresses, deformations and displacements caused by the volume forces are reduced proportionally to the similarity scale for…