Materials Literature
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A review of the nature of partial discharge in machine windings, how it can be measured under both off-line and on-line conditions, how it can be measured for individual form wound coils or bars, and the significance and limitations of the measured values are covered in this standard.
Combining the electronic properties of graphene and molybdenum disulphide (MoS$_2$) monolayers in two-dimensional (2D) ultrathin hybrid nanocomposites have been synthesized experimentally to create excellent electronic, electrochemical, photovoltaic, photoresponsive and memory devices. Here, first-principles calculati…
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTRotaxane CatalystsDavid A. Leigh*, Vanesa Marcos, and Miriam R. WilsonView Author Information School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom*E-mail: [email protected]Cite this: ACS Catal. 2014, 4, 12, 4490–4497Publication Dat…
In this work the electronic structure as well as magnetic and thermoelectric properties of alloy systems containing the 3d-transition metals manganese, iron and cobalt have been investigated by means of first-principles methods and Monte Carlo simulations. In addition, a new analysis of magnetic exchange interaction i…
Green polyurethane (PU), discussed in this chapter, is considered to be ‘green’ because of the foams themselves (rather than the urethane resins) which are widely used in industrial sustainable applications. PU foams can be highly cross-linked and, consequently, blown with chemical blowing agents such as water. Green…
RETURN TO ISSUEPREVAdvertisementNEXTcGMP Synthesis (USA) & Bulk Intermediates (USA or China)Cite this: Chem. Eng. News 2014, 92, 44, 45Publication Date (Print):November 3, 2014Publication History Published online31 March 2015Published inissue 3 November 2014https://doi.org/10.1021/cen-09244-ad25Copyright © 2014 Chemic…
In this study, graphene was functionalized via acid oxidation in the presence of a mixture of concentrated sulfuric acid (H2SO4) and nitric acid (HNO 3 ). Thus oxidized graphene (o-graphene) were silanized using a coupling agent, 3-aminopropyltriethoxsilane (3-APTES) resulting in functionalized graphene (f-graphene).…
The use of plant oils as starting materials to prepare polymers has attracted renewed attention in recent years to replace or augment traditional petrochemical-based polymers and resins. This is because of concerns for the environment, waste disposal, and depletion of fossil and non-renewable feedstocks. In this chapt…
The original Bi-based oxyhalide is the Sillen family expressed by [M2O2][Xm] or [M3O4+n][Xm] (m=1-3, X=halide, M=Bi) where bismuth oxide-based fluorite-like layers, [M2O2] or [M3O4+n], are intergrown with single, double, and triple halide. The band gap of BiOX is strictly dependent on the halide participated in its co…
The paper deals with a challenge in terms of ensuring an accuracy of the relative position of the conjugated surfaces that is to determine a coefficient of friction. To solve it, there is a proposal to use the surface energy, as a tool that influences the contacting parts nature. Presently, energy of the surface layer…
Powder metallurgy (P/M) is the only economic way to produce porous parts/products. P/M can produce near net shape parts hence reduces wastage of raw material and energy, avoids various machining operations. The most vital use of P/M is in production of metallic filters and self lubricating bush bearings and siding sur…
CĂlem tĂŠto prĂĄce bylo stanovenĂ konstitutivnĂ rovnice mĂĄsla vzhledem k tomu, Ĺže vÄtĹĄina publikacĂ se zabĂ˝vĂĄ chovĂĄnĂm mĂĄsla pĹi teplotĂĄch nad 25 °C a pĹi chladĂcĂch teplotĂĄch mezi 5 a 10 °C, dat pro oblast teplot leĹžĂcĂch mezi tÄmito hodnotami je minimum. V tĂŠto prĂĄci stanovenĂ˝ model je po…
Many transformers may be connected in parallel to a distribution busbar to supply the load. Restoration of power supply after a black-out is carried out by switching on the transformers one by one, producing high inrush current at the instant of switching of each transformer. It is proposed that circuit breakers conne…
Phosphorus-containing monomers and polymers have been subject of extensive research in the last decade due to the unique chemical properties of phosphorus atoms.1 Phosphorus-containing materials ca...
Amaç: Dört farklı post materyalinin radyoopasitelerinin karşılaştırılmalı olarak değerlendirilmesidir.Gereç ve Yöntem: CosmoPost (Ivoclar Vivadent, Leicester, İngiltere), Unicore (Ultradent, Salt Lake City, CA, ABD), D.T.Light-Post (Bisco Inc, Schaumburg, IL ABD), FRC Postec Post (Ivoclar Vivadent, Schaan, Liechtenste…
The problems of producing high-strength permanent joints in dissimilar nickel-based alloys are investigated. The results of investigation of the effect of the brazing and heat treatment conditions on the structure of the brazed joints in the EP975 deformed alloy and VKNA-1U intermetallic single crystal alloy are prese…
Magnitude of the impact test for spacecraft is generally required to be between 1000 g and 2000 g, moreover, the magnitude of some products is more than 3000 g. For high-magnitude impact test of large products, it is difficult for film impact test and drop impact test to meet the test requirements. In order to solve t…
Abstract In this work, the differences in nanomechanical properties, topography and morphology of carbonpalladium (C-Pd) films were studied. These films were prepared with a Physical Vapour Deposition method on various substrates with different technological parameters. We show that duration of the PVD process is a cr…
The objective of this research is improving the freeness of waste paper stock and paper quality by using the Cellulose Binding Domain (CBD) of endoglucanase Egl-II. CBD has been separated from endoglucanase Egl-II by proteolysis method. CBD has a molecular weight of approximately 21 kD. The produced CBD contained 0.04…
The continued use of fossil (petroleum-based) materials has raised environmental concerns due to their lack of bio-degradability and bio-sustainability. The coatings industry has been proactive by incorporating natural materials into its products. The recent thrust in favor of bio-based materials for coatings has led…