Materials Literature
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Abstract We have performed ab initio total energy calculations using the full‐potential linearized augmented plane wave (FP‐LAPW) method with the generalized gradient approximation (GGA) for the exchange–correlation potential to investigate structural, elastic, cohesive, electronic and magnetic properties of the tungs…
In this study di- and triblock copolymers of ethylene oxide (EO) and propylene oxide (PO) are analyzed by using CAP for one block and adsorption for the other block. This gives a complete picture of EO- and PO-based block copolymer with respect to the oligomers of both blocks. A full resolution of the individual oligo…
Observation of the formation and interconversion of organo-cobalt complexes ((TMP)Co-R) is used to reveal mechanistic features in the living radical polymerization (LRP) of methyl acrylate (MA) mediated by cobalt porphyrins. Both dissociative and associative exchange of radicals in solution with organo-cobalt complexe…
Abstract Zuviel Calcium im Blut? Mit Calsequestrin (CSQ) funktionalisierte Goldnanopartikel durchlaufen eine Calcium‐abhängige CSQ‐Polymerisation, die mit einem Farbwechsel (siehe Bild) und einer Niederschlagsbildung einhergeht. Dieses Sensorsystem ist spezifisch für Ca2+‐Ionen. Die Unterschiede zwischen normalen und…
Abstract Hitzeschutz: Die Totalsynthese von l,l‐DIP und l,d‐DIP (siehe Strukturen) beinhaltet als Schlüsselschritt den komplexen Fall einer doppelten asymmetrischen Induktion. Die thermoprotektive Wirkung beider Isomere auf Enzyme wurde untersucht, und beide zeigen biologische Aktivität. magnified image
Abstract [FeII(CN)5(HNO)]3−, ein Produkt der Zwei‐Elektronen‐Reduktion von Nitroprussid (siehe Schema), wurde spektroskopisch charakterisiert. Der Komplex ist in wässriger Lösung bei pH 6 stabil und zersetzt sich nur langsam zu [Fe(CN)6]4− und N2O. Bei steigendem pH‐Wert wird er unter Oxidation von NO− zu [FeII(CN)5(N…
No AccessInjection MoldingMay 2009Co-Injection Molding of PolymersA. I. Isayev, Nam Hyung KimA. I. Isayev, Nam Hyung Kimhttps://doi.org/10.3139/9783446433731.021SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitterEm…
For environmental and economical reasons, most vehicles need weight reductions. A useful method to make lighter vehicles is to increase the fatigue limits of vehicle parts. On the previous paper, to prevent the decrease in the fatigue limits of carburized or carbonitrided gears for vehicles by accidental temperature r…
Abstract By means of the wet chemical surface modification, the surface of Fe2O3 was modified by vinyltrimethoxysilane (VTMS). Infrared spectroscopy (IR) was used to investigate the structure of the modified Fe2O3, and the result showed that VTMS has been attached onto the surface of Fe2O3. Effect of VTMS concentratio…
Abstract In this report, two softwood kraft pulps, one originating from chips and the other from sawdust, and a hardwood kraft pulp originating from chips were fractionated individually with regard to fibre length using a Bauer-McNett apparatus. The fibre length, the coarseness, the 0.5% viscosity and the intrinsic vi…
Factor I-like modules (FIMs) of complement proteins C6, C7, and factor I participate in protein-protein interactions critical to the progress of a complement-mediated immune response to infections and other trauma. For instance, the carboxyl-terminal FIM pair of C7 (C7-FIMs) binds to the C345C domain of C5 and its act…
Abstract NR‐graft‐PHEMA latexes were synthesized by the use of graft emulsion polymerization. By increasing the HEMA monomer concentration, we found that the grafting percentage (GP) also increased. In addition, GP increased significantly at low initiator concentrations before it leveled off at moderate concentrations…
We perform numerical simulations, including parallel tempering, a four-state Potts glass model with binary random quenched couplings using the JANUS application-oriented computer. We find and characterize a glassy transition, estimating the critical temperature and the value of the critical exponents. Nevertheless, th…
Abstract In the present study, it was evaluated how two different culture conditions for the biotreatment of Eucalyptus grandis by Ceriporiopsis subvermispora affect a subsequent high-yield kraft pulping process. Under the varied culture conditions investigated, different extracellular enzyme activities were observed.…
The enzymes involved in the catabolism of leucine are encoded by the liu gene cluster in Pseudomonas aeruginosa PAO1. A mutant in the liuE gene (ORF PA2011) of P. aeruginosa was unable to utilize both leucine/isovalerate and acyclic terpenes as the carbon source. The liuE mutant grown in culture medium with citronello…
We report on a Si(3)N(4)-based surface-passivation technique for increasing free-carrier lifetimes in submicrometer silicon-on-insulator waveguides by up to 2 orders of magnitude. The carrier lifetime was measured by injecting free carriers into a critically coupled ring resonator through photoexcitation by short pump…
Cavitein Q4 is a template assembled synthetic protein designed for X-ray crystallographic analysis. It is based on a previous monomeric helical bundle cavitein (N1GG) that consists of four identical parallel helical peptides. Crystals that were grown in the presence of bromide ions were used to solve the initial phase…
The growth of thiophene/phenylene cooligomers is investigated on the basal surface of muscovite mica. Both the phenyl end-capped 5,5′-di-4-biphenylyl-2,2′-bithiophene (PPTTPP) and the thienyl end-capped 4,4′-di-2,2′-bithienylbiphenyl (TTPPTT) co-oligomers form fiberlike nanostructures from molecules lying on the subst…
Is it possible to increase ${T}_{c}$ by constructing cuprate heterostructures, which combine the high pairing energy of underdoped layers with the large carrier density of proximate overdoped layers? We investigate this question within a model bilayer system using an effective theory of the doped Mott insulator. Inter…
In this paper, we report on experimental and theoretical investigations of magnetic transitions in cobalt rings of size (diameter, width and thickness) comparable to the exchange length of cobalt. Magnetization measurements and calculations were performed for two sets of magnetic ring arrays: ultra-small magnetic ring…