Materials Literature
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Abstract A series of liquid crystalline copolyesters, derived from 1,4‐hydroxy‐benzoic acid (HBA), 6‐hydroxy‐2‐naphthoic acid (HNA), terephthalic acid (TA), and hydroquinone (HQ), were prepared; crystallization, melting and solid‐state structure of the copolyesters were studied by using differential scanning calorimet…
In this paper we provide an overview of our current knowledge of the mapping between small molecule ligands and protein domains. We give an overview of the present data resources available on the Web, which provide information about protein-ligand interactions, as well as discussing our own PROCOGNATE database. We pre…
The magnetic structure of Sr2NiReO6 remains controversial experimentally [ferrimagnetic (FiM) versus antiferromagnetic (AFM)]. By considering electron correlation and spin-orbit coupling (SOC) effect, it was found that FiM phase is energetically lower than AFM phase by 12.4 meV. It is only the combination of electron…
On February 2, 1968, R. Fitzgerald, K. Keil, and K.F.J. Heinrich published a seminal paper in Science (159, 528-530) in which they described a solid-state Si(Li) energy dispersive spectrometer (EDS) for electron probe microanalysis (EPMA) with, initially, a resolution of 600 eV. This resolution was much improved over…
In this work, hexadecyltrimethylammonium bromide modified montmorrillonite (OMMT), 3-aminopropyltriethoxysilane-grafted montmorrillonite (γ-APS-g-MMT), and zeolite were used as thermal stabilizers in PVC compound. The thermal stabilities of PVC were then assessed in terms of decomposition temperatures by thermal gravi…
Abstract Sol–gel method under dip coating process and tetra‐ n ‐butyle orthotitanate as precursor were used to produce titanium oxide coating on steel CK45. The effect of calcination at 400 °C, after drying at 120 °C, on the morphology and corrosion performance of the coatings was investigated. Benzotriazole (BTA) as…
Structural analysis of π-extended 7,7,8,8-tetracyano- p -quinodimethane (TCNQ)-based molecules reveal molecular and packing features which may help better understand the weak electron accepting features for these molecules compared with TCNQ, in solution (cyclic voltammetry measurements), while showing varying trends…
<div class="htmlview paragraph">An advanced exhaust aftertreatment system is characterized following end-of-life catalyst aging to meet final Tier 4 off-highway emission requirements. This system consists of a fuel dosing system, mixing elements, fuel reformer, lean NOx trap (LNT), diesel particulate filter (DPF…
We calculate the spin-electron paramagnetic resonance (EPR) shift ( P s ) of Mn 2+ ion in p-type Sn 1− x Mn x Te using a theory for the quantity derived earlier. The theory includes the effect of the spin–orbit interaction from first principles. The spin–orbit interaction gives rise to the effective g -factor, apart f…
Nowadays the majority of electric drives work at variable speeds. In this kind of drives the electrical machines are supplied by inverters which generate modulated voltages. It is widely known that these non sinusoidal voltages cause additional current harmonics dealing to higher iron losses than with sinusoidal volta…
4-Hydroxybutyrate CoA-transferases (4-HB-CoAT) takes part in the fermentation of 4-aminobutyrate to ammonia, acetate, and butyrate in anaerobic bacteria such as Clostridium aminobutyricum and Porphyromonas gingivalis or facultative anaerobic bacteria such as Shewanella oneidensis. Site-directed mutagenesis of the high…
Multifunctional aminoethylglycine (aeg) derivatized [Ru(bpy)(3)](2+) complexes with pendant bipyridine (bpy) ligands coordinate Cu(2+) to form coordinative chain cross-links in a "hairpin loop" motif. In this paper, we report the synthesis and characterization of a series of Ru aeg hairpins in which the relative aeg c…
Abstract Highly exfoliated isotactic‐polypropylene/alkyl‐imidazolium modified montmorillonite (PP/IMMT) nanocomposites have been prepared via in situ intercalative polymerization. TEM and XRD results indicated that the obtained composites were highly exfoliated PP/IMMT nanocomposites and the average thickness of IMMT…
Abstract The need of new biocompatible materials with superior properties and flexibility in their surface termination and functionalization for medical applications is constantly increasing. Due to the combination of intrinsic properties, chemically deposited diamond thin films are proposed as one of the most promisi…
The viscoplastic behavior in high-temperature shape memory alloys and its interaction with the transformation behavior is investigated in this work. Standard creep tests and isobaric transformation-induced tests were conducted for a TiPdNi high-temperature shape memory alloy on a uniaxial frame fitted with a custom hi…
Abstract Poly(2,6‐dimethyl‐1,4‐phenylene oxide)/polyamide 6 (PPO/PA6) blends were reactively compatibilized by maleic anhydride (MA) grafted PPO (PPO‐ g ‐MA) and reinforced by short glass fibers (SGF) via melt extrusion. An observation of the SGF‐polymer interface by scanning electronic microscope (SEM) together with…
<div class="htmlview paragraph">An active diesel particulate filter (DPF) regeneration system is evaluated, which applies secondary fuel injection (SFI) directly within the exhaust system upstream of a diesel oxidation catalyst (DOC). Diesel fuel is oxidized in the presence of a proprietary catalyst system, incr…
Abstract The Raman spectra of the nanotube (7,0) with point defects (monovacancy, divacancy, and Stone–Wales defect) were simulated in order to derive spectroscopic signatures of defective nanotubes. First, we calculated the electronic band structure and the phonon dispersion of the defective nanotubes using supercell…
Bipolar pulsed magnetron sputtering is used to deposit Al doped ZnO (AZO) on a glass substrate for a transparent conducting oxide in a solar cell structure. A 5×25in.2 AZO target was sputtered by 50–250kHz bipolar pulsed dc power supply to deposit a 400×400mm2 area by swinging back and forth. Sheet resistance, surface…
A lamellar PbSO 4 mesophase with well-crystallized walls was synthesized using sodium dodecyl sulfate (SDS) as a template and bis[3-(triethoxysilyl)propyl]tetrasulfide (TESPTS) as a structure-stabilizing agent through hydrothermal treatment method. The obtained layered mesostructure was characterized by X-ray diffract…