Materials Literature
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Currently found widespread composite materials based on polymers. These composites include a variety of properties. Composite materials, which are discussed in this article are radiation-protective, they have good physical and mechanical properties, have good chemical resistance. In this paper, we study the thermal co…
Using the non-equilibrium Green’s function techniques with interatomic potentials, we study the temperature dependence and the crossover of thermal conductance from the usual behavior proportional to the cross-sectional area at room temperature to the universal quantized behavior at low temperature for carbon nanotube…
For the (2 + 1)-dimensional Broer-Kaup system, we study the corresponding Lie symmetry groups, and obtain the symmetry group theorem and the Backlund transformation formula of solutions finding. At the same time, we find some new exact solutions of the (2 + 1)-dimensional Broer-Kaup system and extend the results in th…
The three-phase shunt active power filter eliminates harmonic currents and compensates reactive power for non-linear loads. A current control scheme based on the time-domain approach for three-phase shunt active power filters is analysed in this paper. A basic outline and evaluation of the performance of existing curr…
We have developed novel microactuators which are driven by liquid crystalline (LC) materials. Because of their simple structure and the high shape adaptability of LC materials, LC actuators are able to be easily downsized and are appropriate for MEMS use [1,2]. Another advantage of LC actuators is the low-voltage driv…
Glassy carbon electrode (GCE) was modified using graphene (G), quercetin (Qu) and Nafion in this sequence to fabricate Nafion-Qu-G composite-modified GCE (Nafion/Qu/G/GCE). The as-prepared modified electrode combining the advantages of Nafion, Qu and G was employed for the selective and sensitive detection of dopamine…
In 500 MWe Prototype Fast Breeder Reactor (PFBR), the Primary Sodium Pump (PSP) contained in the primary circuit circulates sodium through the core. The PSP is supported on the roof slab. The space between the roof slab and sodium free surface is filled with argon. PSP will be lowered slowly, using a flask, into the m…
High-speed projectile usually has significantly nose blunting which may decrease performance of projectile. Since the peeling of molten surface layer is the primary cause of mass loss of projectile, the projectile made of refractory material may reduce nose blunting. Two possible schemes to distribute refractory mater…
Imaging patients with a pacemaker or AICD has always been taboo in the MRI environment. However, with current improvements in pacemaker lead and generator development along with very vigilant and knowledgeable personnel in pacemaker safety, MRI procedures can be implemented successfully. However, safe performance, not…
Cadmium selenide nanomaterials of various shapes and sizes have been synthesized in different condensed media through electron beam irradiation using a 7 MeV linear accelerator. The microstructures in different media as well as the presence of capping reagents play a crucial role in the formation of nanomaterials of d…
Abstract The title compounds are prepared by reaction of Ln (Ln: Pr, Nd, Sm, Gd, Yb), BaS, and In2S3 or Ga2S3 (evacuated silica tube, 1323 K, 48 h).
The properties of μc-Si1-xGex:H thin films and solar cells have been investigated. The results show that the μc-Si1-xGex:H solar cells, which obtain higher Jsc and infrared response than μc-Si:H solar cell, have a great potential as the bottom cell for multi-junction solar cells.
Advanced fabrication and testing techniques produce freeform optical surfaces that lack symmetry. We summarize new methods for modeling and designing with these surfaces, as well as some practical issues with their manufacture and measurement.
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Gold nanoparticles having a monolayer of azobenzene liquid crystals (LCs) were synthesized and their aggregation structures on solid surfaces were observed. The gold nanoparticles formed a single-particle layer on bare mica and mica with a polyimide layer. We demonstrated that the morphology of the gold nanoparticle a…
Carbon fiber composite materials are increasingly used in automobile, marine, and aerospace industries due to their unique properties, including high strength, high stiffness and low weight. However, due to their brittle characteristic, these structures are prone to physical damage, such as a bird strike or impact dam…
In the present work, finite element analysis-based approach has been presented to estimate the temperature in the roll and the strip. Heat generation due to plastic deformation and friction is calculated employing flow formulation-based finite element analysis. The heat generated is used as input in the thermal analys…
A monomer 4,4'-bis(β-hydroxyethyl)biphenyl (2BP) was synthesized by the Williamson reaction from 2-chloroethanol and 4,4'-biphenol. Then, the novel dendritic liquid crystal macromolecule (DLCM) containing biphenyl structure was synthesized with 2BP and 1,3,5-benzenetrimethylacylchloride as monomers by dispersion metho…
We report experimental realization of an array of broadband invisibility cloaks, which operates in the visible frequency range. Wavelength and angular dependencies of the cloak array performance have been studied.
In this article has been suggested an approach to reactor modeling of phosphine oxidation with account of phase distribution in the volume of catalyst, based on the theoretical developments of work. This method allows working out a method of calculation of devices efficiency for phosphine oxidation with account of pha…