Materials Literature
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Macromolecular X-ray crystallography is routinely applied to understand biological processes at a molecular level. However, significant time and effort are still required to solve and complete many of these structures because of the need for manual interpretation of complex numerical data using many software packages…
In this study, NO reduction behaviors of copper-loaded mesoporous molecular sieves (Cu/MCM-41) have been investigated. The Cu loading on MCM-41 surfaces was accomplished by a chemical reduction method with different Cu contents (5, 10, 20, and 40%). <TEX>$N_2/77$</TEX> K adsorption isotherm characteristics, including…
Polycondensations of methylmaleic anhydride (citraconic anhydride, CiAh), bromomaleic anhydride (BMaAh), and dichloromaleic anhydride (DCMaAh) with 1,6-hexanediol were conducted in bulk. For polycondensations of CiAh, the triflates of aluminum, bismuth, lanthanum, magnesium, samarium, and scandium were used as catalys…
Direct molecular orbital–molecular dynamics (MO–MD) method has been applied to diffusion processes of the Li + ion on a modified graphene surface. A graphene sheet composed of carbon, fluorine and hydrogen atoms were used as a model graphene (Li + C 150 H 3 F 27 , denoted by FH-graphene). The edges of graphene were te…
Abstract Production of polyester filament involves melt spinning into partially oriented yarn (POY), followed by drawing to enhance the bulk and mechanical properties. The industrial demand of increasing productivity is generally met by increasing POY melt spinning speeds, which is limited by increasing polymer chain…
With regards to the synthesis of L-Dopa (l-3,4-dihydroxy phenylalanine) two types of biosensors were designed by immobilizing tyrosinase on conducting polymers; polypyrrole (PPy) and poly(3,4-ethylenedioxythiophene) (PEDOT). PPy and PEDOT were synthesized electrochemically and tyrosinase immobilized by entrapment duri…
Abstract Red, green and blue optical signals were directed to an a‐SiC:H multilayered device, each one with a specific transmission rate. The combined optical signal was analyzed by reading out, under different applied voltages, the generated photocurrent. Results show that when a chromatic time dependent wavelength c…
We theoretically study possible domain-type collective dimerizations of graphite induced by interlayer charge transfer excitations in the visible region. Using the semiempirical Brenner's model, we have calculated the adiabatic energy along the path that starts from original two distant graphite layers and finally rea…
Abstract The critical loads for five non‐conservative problems are defined under the context of gradient elasticity theory of a beam. The first problem deals with the stability of a gradient elastic beam compressed by a follower force (Beck's problem) and the second deals with the stability of a gradient elastic beam…
Commercial amidine polystyrene microspheres were self-organized to obtain colloidal microclusters from water-in-oil emulsion droplets as confining geometries. For demulsification process, microwave was irradiated to remove water droplets selectively resulting in the shrinkage of water droplets which induces inward cap…
New polyphenylquinoxalines (PPQs) containing methyl substituents have been synthesized and characterized. The PPQs were prepared by the polycondensation of a newly-developed aromatic tetraketone, 4,4′ -bis(4-benzilyloxy)-3,3′,5,5′ -tetramethylbiphenyl (III) and aromatic tetraamines. Compared with the non-methyl-substi…
This paper investigates the multi-dimensional liquid crystal (LC) alignment effect of a polymer wall. The polymer wall is formed on the pixel boundary by an anisotropic phase separation method, which affects the nearby LC orientation. Vertically aligned (VA) LC cells are fabricated in order to show the effect of the p…
Periodic concaves have been fabricated on the initial aluminum surface using nanoimprint and anodization processes to obtain high order nanostructured anodic aluminum oxide (AAO) arrays. The effect of the pattern design process on the one- and two-dimensional structures is investigated. Both the experimental and simul…
The measurements and analysis of optical transmission and far-infrared (IR) reflectivity spectra of thermally evaporated Sb2Se3:Sn films are reported. The refractive index and film thickness have been determined from the upper and lower envelopes of the transmission spectra (Swanepoel's standard envelope method), meas…
Abstract The thermal behavior of three series of sugar‐derived polyamides (PA‐ n Su) made from the arabinaric, mannaric and galactaric acids, respectively, and α,ω‐alkanediamines containing from 6 to 12 methylene units was investigated by DSC supported by polarizing optical microscopy. Crystallization from the melt un…
The addition of Ag to Mg–Y–Zn alloys provides these alloys with the ability to develop a strong age-hardening response. In this work, the as-cast microstructure of an age-hardenable Mg–6Y–2Ag–1Zn–0.6Zr (wt%) alloy processed by conventional ingot metallurgy has been investigated by a transmission electron microscopy. T…
Using a tight-binding Bogoliubov--de Gennes formalism we show that nearest-neighbor spin-singlet (SB) correlations in graphene strongly enhance proximity effect and Josephson current in unconventional $d$-wave contact graphene Josephson junctions. We also establish a $1/(T\ensuremath{-}{T}_{c})$ functional dependence…
The direct electrochemical oxidation of coal gas was studied by pyrolyzing a sample of Ohio #5 coal in flowing Ar at 700, 800, 900, and 950 °C and transporting the resulting gaseous products to a Cu (Copper) anode solid oxide fuel cell (SOFC) operated at 950 °C. Pyrolysis of coal at 700 °C produced a H 2 -rich coal ga…
Most enolases are homodimers. There are a few that are octamers, with the eight subunits arranged as a tetramer of dimers. These dimers have the same basic fold and same subunit interactions as are found in the dimeric enolases. The dissociation of the octameric enolase from S. pyogenes was examined, using NaClO(4), a…
In-situ synchrotron-based photoemission spectroscopy, low-temperature scanning tunneling microscopy and Raman spectroscopy are used to investigate the interface properties of graphene on both the (0001) and (0001) 6H-SiC (Si- and C-terminated surfaces). We clearly observe the upward band-bending upon the formation of…