Materials Literature
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Transmission studies for multiple heterostructures consisting of two kinds of single-negative materials inserted with defects are presented. The results show that multiple-channeled filters can be obtained by adjusting the period number m and thicknesses of defects. These structures provide an excellent way to select…
Abstract We have performed a detailed, quantum chemical, decomposition analysis of the physical nature of key interactions in the model enzyme chorismate mutase (CM), for several active conformations produced by high level combined quantum mechanics/molecular mechanics (QM/MM) modeling. In opposition to our previous s…
Bi-functionalized dendrimers leads to highly efficient quantitative proteomics and the determination of protease activities in snake venoms.
We had proposed chemical heat pumps using a reversible calcium sulphate/water reaction system for effective waste energy utilization. However, more reaction kinetics studies are necessary for this reaction system, especially for different atmosphere condition and different materials. As a result, the reaction equilibr…
Dielectric relaxations were investigated for the solid-solution system Ce1-xSmxO2-δ(0.0≦x≦0.5), which is a typical oxide-ion conductor. The dielectric constants showed anomalously large values at low frequencies and high temperatures. Computer simulation clarified that the anomalously large dielectric constant (εr′) o…
SQUID magnetometry and transport measurements combined with crystal structure refinement have been used to examine the variation in superconducting properties (Tc and Meissner fraction) in the molecular superconductor β″-(BEDT-TTF)4[(H3O)Fe(C2O4)3]·C6H5CN on replacing the C6H5CN guest molecule with pyridine (C5H5N). U…
Polypyrrole films doped with dodecylbenzenesulfonate (PPy–DBS) were prepared for effective copper protection by galvanostatical method on an underlayer of polypyrrole doped with oxalate , because PPy–DBS could not be obtained directly on the copper surface by electrochemical methods. Their anticorrosion performance in…
Effects of Surface-Deposited Nanocrystalline Chromite Thin Films on the Performance of a Ferritic Interconnect Alloy, Belogolovsky, I., Zhou, X.-D., Kurokawa, H., Hou, P. Y., Visco, S., Anderson, H. U.
Aliphatic poly(carbonate) glycols (PC-glycols) with different methylene unit lengths were synthesized from ethylene carbonate and 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol or 1,10-decanediol. The samples were coded 3002, 4002, 5002, 6002, 7002, 80…
Mesoporous SnSBA-15 materials with different tin precursors, crystallization temperatures, and nSi/nSn ratio = 5, 10, 15, 30, 60 and 100, have been synthesized using Pluronic 123 triblock polymer [(EO)20(PO)70(EO)20] as a structure-directing agent by simply adjusting the molar ratio of water to hydrochloric acid (nH2O…
It was recently shown (1) that it is possible to achieve broadband composite right/left handed (CRLH) transmission lines by using complementary split rings resonators (CSRRs). Making use of balanced CRLH/CSRR-based metamaterial transmission lines, high pass fllters are designed. Good performance and small dimensions a…
With the precursors prepared from saccharides, such as glucose and cellulose, and boric acid, microcrystals of boron carbides were synthesized at relatively low temperatures of 1500-1600°C by 1 h treatment in an argon atmosphere. Hydrothermal treatment at the stage of precursor preparation was found to be effective to…
Nanotechnology has the potential to greatly impact the wood protection industry through the creation of nanomaterials with unique properties. Nanobiocides may find applications as co-biocides, or may alter treatability properties such as penetration and biocide distribution. Nanocarrier delivery systems may increase t…
We introduce a class of sub-linear scaling algorithms for analyzing the electronic structure of crystalline solids with isolated defects. We divide the localized orbitals of the electrons into two sets: one set associated with the atoms in the region where the deformation of the material is smooth (smooth region), and…
The electrochemistry of the Dawson-like sulfite polyoxometalate anion alpha-[Mo18O54(SO3)2]6-, derived from the TEAH6{alpha-[Mo18O54(SO3)2]} salt (TEAH+ is the triethanolammonium cation; pKa=7.8), has been investigated in aqueous media using cyclic and rotated disk voltammetry at glassy carbon electrodes and bulk elec…
The interaction of atomic oxygen and nitrogen on the (0001) surface of corundum (alpha-alumina) is investigated from first-principles by means of periodic density functional calculations within the generalized gradient approximation. A large Al(2)O(3) slab model (18 layers relaxing 10) ended with the most stable alumi…
In this letter, a left-handed artificial dielectric is proposed . Using resonating broadside coupled patches to generate a negative permeability and thin strips to generate negative permittivity, a negative index of refraction that is matched to free space can be designed. The structure is fabricated from a single die…
The paper deals with a study of tensile strength and disintegration time of compacts made from silicified microcrystalline celluloses, Prosolv SMCC 90, and Prosolv HD 90, in dependence on compression force, addition of two types of lubricants, and two active ingredients. The lubricants were magnesium stearate and sodi…
We present the first ultrahigh vacuum (UHV) surface study of single-grain icosahedral Ag–In–Yb quasicrystal by using X-ray photoelectron spectroscopy (XPS), reflection high-energy electron diffraction (RHEED), and scanning tunnelling microscopy (STM). This new quasicrystal is found to exhibit surfaces with steps and t…
Buried aluminum/polymer interfaces were studied using a spectroelectrochemical experimental setup based on simultaneous in situ attenuated total reflection Fourier transform infrared spectroscopy ͑ATR-FTIR͒ and electrical impedance spectroscopy ͑EIS͒.Transport of water and electrolyte through the polymer film to the a…