Materials Literature
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We briefly review some current theoretical and experimental aspects of the problem of a single spinless impurity in a 3D polarised atomic Fermi gas at zero temperature where the interactions can be tuned using a wide Feshbach resonance.We show that various few-body states in vacuum composed of the impurity and backgro…
Progressive collapse denotes a failure of a major portion of a structure that has been initiated by failure of a relatively small part of the structure such as failure of any vertical load carrying element (typically columns). Failure of large part of any structure results in to substantial loss of human lives and nat…
Nitroxides connected to indoles, tetrazoles, or 1,3,4-oxadiazoles were synthesized by conventional and microwave-assisted cyclization reactions. New approaches to pyrrole-, pyrazole-, and triazole-annulated nitroxides are described. We showed that Diels–Alder reactions of the N - tert -butoxycarbonyl derivative of (4,…
In response to develop wide-band noise absorbers with an improved low-frequency performance, this study investigates hybrid absorbers that are composed of conductive Fe3O4 thin film and magnetic composite sheets. The Fe3O4 films prepared via reactive sputtering exhibit a typical value of electrical resistivity of ≃10−…
This study evaluates the concept of developing a nondeform phase-change energy storage material possessing higher thermal conductivity and energy storage density through a pressure compaction process. The theoretical and experimental investigations have shown that the technique is able to reduce porosity and increase…
A comparison of thermal and photochemical degradation of poly (lactic acid) film materials (10 m) containing nanosilver are studied by FTIR (Fourier transform infrared) spectroscopy and DSC (differential scanning calorimetry). Rates of thermal and photochemical degradation are determined by measuring the relative chan…
The use of chitin as raw material to obtain glucosamine hydrochloride at laboratory level was investigated. Chitin was extracted from shrimp shells by deproteinization, demineralization and depigmentation. Afterwards, glucosamine hydrochloride was produced in four main stages: (1) acid hydrolysis of chitin with 12 M h…
The compositional and temperature dependence of the glass transition in AsxSe100−x chalcogenide glasses were studied using differential scanning calorimetry (DSC). The temperature dependence of the glass transition activation energy was determined using an isoconversional kinetic analysis. The compositional trend of t…
In this study, the carbon fibers were coated with polycaprolactone (PCL) through in-situ polymerization. During this process, different content (1-10 wt. %) of functional nanodiamonds (NDs) were added to form PCL-CFs-NDs. The affect of NDs on the polymerization and molecular weight of PCL was deliberated through gel-p…
An irreducible four-point vertex composed of the most-crossed diagrams involved in Bethe–Salpeter equation for an averaged two-photon propagator in a system of metal nanoparticles was calculated directly in coordinate representation without the traditional introduction of an EM-energy diffusion coefficient. These diag…
The Paton Welding Journal, 2015, №01. International Scientific-Technical and Production Journal «The Paton Welding Journal» «The Paton Welding Journal» has been published monthly since 2000 in English, ISSN 0957-798X. «The Paton Welding Journal» is a cover-to-cover English translation of the «Avtomaticheskaya Svarka»…
This research entailed development and application of an efficient indirect Monte Carlo simulation methodology for performing environmental radiation dose assessment for storage of a large number (thousands) of uranium hexafluoride (UF6) cylinders in an outdoor storage area. The primary objective was to substantially…
Novel fully conjugated push–pull dendrons were synthesized by a divergent approach to evaluate the performance of non-conventional architectures like dendritic one in charge separation processes associated with photovoltaic events. The dipole moments in excited state were estimated by the solvatochromic method, to be…
In this research, the effect of magnesium (Mg), copper (Cu) and phosphorus (P) impurities on dosimetry response of LiF:Mg,Cu,P phosphors is studied experimentally and by the simulation procedure. In the experimental procedure, LiF:Mg,Cu,P phosphors in the powder form were synthesised by chemical co-precipitation metho…
Viscosity, loop tack, peel strength, and shear strength of epoxidized natural rubber (ENR 50)/acrylonitrile‐butadiene rubber (NBR)–based pressure‐sensitive adhesive were studied in the presence of zinc oxide. The zinc oxide concentration was varied from 10 to 50 parts by weight per hundred parts of rubber (phr). Couma…
The second virial coefficient, A2, for trivial-ring polymers in dilute condition was estimated from a Metropolis Monte Carlo (MC) simulation, and the temperature dependence of A2 has been discussed with their Flory's scaling exponent, ν, in Rg ∝ N(ν), where Rg is radius of gyration of a polymer molecule. A limited but…
We investigated the dependence of the negative dispersion of birefringence of smectic liquid crystal-polymer composites on the constituent molecules and temperature. The dispersion of birefringence was significantly varied from positive dispersion to negative dispersion by the change of the relative fraction of the co…
Acanthoceras Honigmann and Urosolenia Round & Crawford emend. Rott, Kling & McGregor species were studied based on samples of 19 hydroelectric power plants reservoirs located in the State of Paraná, Southern Brazil. Autoecological informations of Urosolenia species complement the study. One Acanthoceras and four Uroso…
Electrometallurgy Today, 2015, №01. SOVREMENNAYA ELEKTROMETALLURGIYA Quarterly scientific-technical and production journal. ISSN: 2415-8445, Since 1985. Text in Russian, contents and summaries in English. The journal presents the results of theoretical and experimental research carried out at the PWI in the field of e…
Hydrodeoxygenation of 2-Methoxyphenol was investigated over 3%NiO/MAS-x and 10%MoO3-3%NiO/MAS-x, y%MoO3-3%NiO/MAS-20 (where, MAS-Mesoporous Aluminosilicate, x = 10, 20, 40 and 80 and y = 8, 10, 12 and 15 wt.%) catalysts at atmospheric pressure. MAS were synthesized with varying Si/Al ratio to impart acid characteristi…