Materials Literature
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Spectral shifts in stochastic beam-like fields on interaction with layers of positive- and negative-phase materials are examined on the basis of the ABCD-matrix approach and generalized Huygens-Fresnel principle. It is found that boundaries between such materials may cause spectral switches. Effect of absorption of ne…
Hydrothermally prepared mesoporous silica gel (prepared under acidic condition) was calcined at different temperatures to control concentration of surface hydroxyl groups. These materials were functionalized with 3-aminopropyltrimethoxysilane (APTMS) and used for the adsorption of Cu 2+ ions. Adsorption isotherm and a…
We have studied the correlation between the structural distortion and the magnetic interaction change in the ferrimagnetic $(\text{Lu},L){\text{Fe}}_{2}{\text{O}}_{4}$ ($L=\text{Y}$ and Er) by using neutron powder diffraction and x-ray magnetic circular dichroism (XMCD). The Rietveld profile refinements revealed that…
Abstract Gas atomized 4J36 alloy powder was milled for 72 h then mixed with ZrW 2 O 8 powder and sintered at 600°C for 4 h under argon atmosphere. 4J36/ZrW 2 O 8 composites containing 10 vol.%, 20 vol.%, 30 vol.%, and 40 vol.% ZrW 2 O 8 were fabricated, the relative density of which ranged from 70% to 80%. Thermal exp…
In this paper, transformation optics is presented together with a generalization of invisibility cloaking: instead of an empty region of space, an inhomogeneous structure is transformed via Pendry's map in order to give, to any object hidden in the central hole of the cloak, a completely arbitrary appearance. Other il…
Abstract The effects of small amounts of the rare‐earth element erbium on the microstructure and the mechanical properties of AZ31 magnesium alloy via the electromagnetic stirring (EMS) process have been studied. It has been shown that AZ31‐Er alloys are mainly composed of α‐Mg solid solution and β‐Mg 17 Al 12 phases.…
The present investigation concerns plasma-keyhole welding of UNS S32760 super-duplex stainless steel. Apart from Argon, a mixture of argon with 2 vol% nitrogen was used in both plasma and shielding gas, in order to improve the austenite/ferrite balance. Keyhole welding with argon provides with a narrow fusion zone wit…
Hot compressive deformation behavior of ZK60 magnesium alloy was investigated at the temperature range from 523 to 673 K and strain rate range from 0.001 to 1 s−1 on Gleeble-1500 thermal simulator. The results show that flow stress of ZK60 magnesium alloy decreases with the increase of deformation temperature and the…
Abstract Review: 127 refs.
Abstract A series of chromophoric Lewis base adducts of methyltrioxorhenium (MTO) was examined. The ligands were pyridine derivatives with different size of the aromatic system and variable substituents, thus providing a variation of electronic and steric parameters. The complexes were fully characterised (UV/Vis, IR…
We studied the methanol adsorption behavior of Pt nanoparticles that were vacuum-deposited on a TiO(2)(110) surface at room temperature by using an ultrahigh vacuum (UHV) scanning tunneling microscope (STM). A large number of bright spots were observed on fivefold-coordinated Ti (Ti(5c)) rows of the TiO(2)(110) surfac…
We studied very large graphene/Ru systems by ab initio calculations. It is shown that the graphene monolayer on Ru is nearly flat rather than strongly corrugated. The large corrugation is found to be unfavorable and disagrees with the observed bias dependence of scanning tunnel microscope images. The C-Ru bonds are me…
We study the interplay between proximity-induced superconductivity and ferromagnetism in graphene by self-consistently solving the Bogoliubov de Gennes equations on the honeycomb lattice. We find that a strong triplet proximity effect is generated in graphene, leading to odd-frequency pairing correlations. These odd-f…
For the present work, a heat‐set microfibre polyester woven fabric was treated with five different sodium hydroxide concentrations in similar conditions. Their physical and mechanical properties were studied and discussed. Changes in eight properties due to the weight reduction, i.e. surface properties, tear strength,…
ADVERTISEMENT RETURN TO ISSUEPREVNoteCarrier System of Chemical Drugs and Isotope from Gelatin Electrospun Nanofibrous MembranesHuarong Nie†‡, Junxing Li‡, Aihua He*§, Shanshan Xu‡, Qingsong Jiang†, and Charles C. Han*‡View Author Information School of Materials Science and Engineering, Nanchang University, Nanjing Ea…
Inrush currents have undesired effects on transformers when these ones are, for example, switched into service. Theses effects have to be taken into account when designing a transformer, what leads to a constraint on its magnetic core and size definition. This paper investigates the modeling of inrush currents in a th…
A self-supported device with tunable reflective properties in the IR was elaborated from the association of a poly(ethylene oxide) (PEO) network, poly(3,4-ethylenedioxythiophene) (PEDOT), and an ionic liquid, 1-ethyl-3-methylimidazolium bis-(trifluoromethylsulfonyl)imide (EMImTFSI). First, the PEO matrix was optimized…
Photoelectron spectra and angular distributions in photodetachment of gold hydride anions AuH(-) and Au(2)H(-) have been obtained using photoelectron velocity-map imaging. Both the images exhibit vibrationally resolved ground state transitions. The adiabatic electron affinities of AuH and Au(2)H are measured to be 0.7…
The inclusion of eddy currents in electrical steel sheets in a two-dimensional (2-D) finite element analysis is studied. For the eddy-current modeling of the sheets a so-called one-dimensional (1-D) approach is applied. Two different techniques for representing the 1-D eddy-current solution within the 2-D field equati…
Two novel series of codendrimers constituted by the grafting of poly(propylene imine) PPI-(NH 2 ) 16 ( G = 3) with aromatic acids substituted with fluorinated and perhydrogenated chains in different proportions have been synthesized and their liquid crystalline properties have been investigated. Series I is generated…