Materials Literature
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The corrosion behavior of five commercially available alloys (AISI 316L, AISI 310S, Inconel 601, Thermax 4762, and Kanthal A1) in molten carbonate under reducing gas atmospheres was investigated with cyclic voltammetry and quasi‐stationary polarization curve measurements. The reactions that proceed on these materials…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCholestanyl Substituted Quaternary Ammonium Salts as Gelators of Organic LiquidsLiangde Lu and Richard G. WeissCite this: Langmuir 1995, 11, 10, 3630–3632Publication Date (Print):October 1, 1995Publication History Published online1 May 2002Published inissue 1 October 1995htt…
Ferromagnetic exchange-coupling interactions mediated by siloxanolate ligands have been detected in the two nickel(II) nanoscale clusters Na2[(PhSiO2)6Na4Ni4(OH)2(O2SiPh)6]. 16Bu(n)OH (1) and Na2[(PhSiO2)6Ni6(O2SiPh)6Cl].12CH3OH. H2O (2), which qualify as interesting precursors for new molecule-based magnetic material…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry of Iron with Dipicolinic Acid. 2. Bridging Role of Carboxylate Groups in Solid State StructuresP. Laine, A. Gourdon, and J.-P. LaunayCite this: Inorg. Chem. 1995, 34, 21, 5138–5149Publication Date (Print):October 1, 1995Publication History Published online1 May 200…
The solid–solid phase transitions and the crystal structures of odd n-alkanes, n-C23H48, and n-C25H52, were investigated by x-ray powder diffraction. The phase transitions, I→V→RI for n-C23H48 and I→V→IV→RI for n-C25H52, were observed, where phases I, V, IV are the low-temperature ordered phases, and the phase RI is t…
The dielectric, pyroelectric, electrostrictive, optical and thermal properties of Na0.5Bi0.5TiO3, in wide temperature range, particularly in the range of 200–340[ddot]C are presented and discussed. The results of investigations show the complicated nature of phase transition occurring in this material.
The CobU protein of Salmonella typhimurium was overexpressed and purified to approximately 94% homogeneity. N-terminal sequencing of purified CobU confirmed the first 22 amino acids. In vitro assays showed that CobU has kinase and guanylyltransferase activities which catalyze the synthesis of adenosyl-cobinamide-GDP f…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplex Multinary Compounds from Molten Alkali Metal Polyselenophosphate Fluxes. Layers and Chains in A4Ti2(P2Se9)2(P2Se7) and ATiPSe5 (A = K, Rb). Isolation of [P2Se9]4-, a Flux Constituent AnionKonstantinos Chondroudis and Mercouri G. KanatzidisCite this: Inorg. Chem. 1995…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn Organic/Inorganic Single-Phase CompositeI. A. David and G. W. SchererCite this: Chem. Mater. 1995, 7, 10, 1957–1967Publication Date (Print):October 1, 1995Publication History Published online1 May 2002Published inissue 1 October 1995https://pubs.acs.org/doi/10.1021/cm0005…
The PII protein in the glutamine synthetase cascade transduces the nitrogen signal, as sensed by uridylyltransferase, both to the NRII/NRI two-component system and to adenylyltransferase, to regulate the activity of glutamine synthetase. Here we describe the amplification of a chromosomal DNA fragment from Escherichia…
Abstract An approach is developed to separate the spectral contributions of electrons that have experienced a certain number of inelastic collisions and together constitute the observable lineshape in AES/XPS. The only assumption concerning the emission process that is made in this general approach is that energy loss…
The gene coding for the 3-phosphoglycerate kinase (EC 2.7.2.3) of Pyrococcus woesei was cloned and sequenced. The gene sequence comprises 1230 bp coding for a polypeptide with the theoretical M(r) of 46,195. The deduced protein sequence exhibits a high similarity (46.1% and 46.6% identity) to the other known archaeal…
Transient photocurrents in amorphous selenium (a-Se) and nematic liquid crystal (NLC) double layers have been investigated to elucidate the charge carrier transport process in NLC. It is shown that the transient photocurrents obtained in the experiment are space-charge limited currents induced by the delayed charge in…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
Genes encoding beta-ketothiolase (phaA), acetoacetyl-CoA reductase (phaB) and PHB-synthase (phaC) from R. meliloti 41, together with a fourth gene, referred to as ORF1, presumed to be involved in PHB biosynthesis, have been cloned and sequenced. phaA, phaB and ORF1 were identified by heterologous hybridization on a co…
Dense, small‐grained BaTiO 3 ceramics, with a grain size around 1 μm and a relative sintered density >98%, were obtained at 1100°C from sol‐gel‐derived gel monoliths without using any sintering additives. The monolithic gels asprepared had a relative density of about 50% and consisted of ultrafine pseudo‐cubic BaTi…
High‐resolution transmission electron microscopy (HRTEM) and analytical electron microscopy (AEM) were used to investigate the structure and chemistry of (0001) α‐A1 2 O 3 / A1 interfaces in melt‐infiltrated polycrystalline alumina composites. HRTEM revealed an interfacial region different from both Al and α‐A1 2 O 3…
Slica‐based composite materials incorporated with a terbium bipyridyl complex, SiO 2 : Tb ( bpy ) 2 3 + , were prepared by a sol‐gel method. The thermal stability of Tb ( bpy ) 2 3 + was improved by incorporation into the silica matrix, and its green emissiom lines were intensified by heat‐treatments under appropriate…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSingle-Layered Carbon Nanotubes Synthesized by Catalytic Assistance of Rare-Earths in a Carbon ArcYahachi Saito, Kenichiro Kawabata, and Mitsumasa OkudaCite this: J. Phys. Chem. 1995, 99, 43, 16076–16079Publication Date (Print):October 1, 1995Publication History Published on…
A novel solid oxide fuel cell (SOFC) system, which does not need to separate the supply of fuel and oxidant gases and generates electric power as well as chemicals, was studied. The fuel cell consisted of Pt | BaCe 0.8 Y 0.2 O 3 − α | Au , in which two electrodes were exposed to the same mixture of CH 4 and air. Elect…