Materials Literature
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A spirobenzothiapyran derivative bearing a monoaza-12-crown-4 moiety affords significant thermal stability enhancement in the UV light induced colored merocyanine form of its photochromic moiety by metal-ion complexation of its crown ether moiety, although the complexation hardly induces the isomerization without phot…
The hydrogen permeation behavior of carbon steel (CS) was investigated electrochemically in weak alkaline solutions containing hydrogen sulfide (H2S) with various cyanide ion (CN–) concentrations under open-circuit conditions. Anodic and cathodic polarization behaviors of CS also were investigated under the same envir…
Two experiments were carried out to determine the effect of poly(3-hydroxybutyrateco-3-hydroxyvalerate) (PHBV) and polycaprolactone (PCL) inclusion (Exp. 1), and of PHBV pre- treatment with sodium hydroxide (Exp. 2) on the digestibility of diets in growing pigs. In Exp. 1, eight male castrated Large White pigs (initia…
An atomic-crystallographic mechanism is proposed for the α → ω transformation during irradiation. The mechanism is based on the propagation of a localized displacement wave of the [100]α close-packed rows. From the phonon dispersion curves along (010)α, the displacement wave is decomposed into two transverse optical p…
The crystal structure and the luminescence of the complex Na[Eu(DCTA)·H2O]·4H2O (DCTA = trans-cyclohexane-1,2-diyldinitrilotetraacetate) have been determined. In the structure the EuIII is co-ordinated by two nitrogen atoms and four terminal oxygen atoms of two iminodiacetate groups, and two water oxygen atoms which b…
Photophysical studies on the photochromism of trans-10b,10c-dimethyldihydropyrene showed that several transients, including the triplet excited state of the cyclophanediene, were observed.
The dc sputtering of indium tin oxide (ITO) is a high deposition rate process yielding a low-resistivity, high-transmission thin film that is useful to the display, photovoltaics, and optoelectronics industries. However, a number of deposition variables that are not typically controlled during sputtering, such as targ…
Atomistic computer simulation techniques have been employed to generate an amorphous SrO thin film on an MgO(100) substrate, which, under dynamics simulation, recrystallises revealing misfit induced structural modifications including mixed screw–edge dislocations, lattice slip and twist boundaries.
JNFL's Rokkasyo Reprocessing Plant (RRP) is under construction in Rokkasyo village Aomori prefecture, and it is required to select appropriate materials of equipment which possess high degree of corrosion resistance to process solutions based on nitric acid. In other existing reprocessing plants, some troubles caused…
The crystal structure of 2DBTZP·H2O [DBTZP = 2,6-bis(5-butyl-1,2,4-triazol-3-yl)pyridine] has been determined and shows a dimeric structure in which two ligands, with different protonation patterns, form four hydrogen bonds with an enclosed water molecule. Several crystal structures have been determined of lanthanide…
Histological and biochemical investigations were carried out in order to evaluate the chondrocyte compatibility of a recently developed biodegradable polyesterurethane-foam (DegraPol-foam). Therefore, cell adhesion, cell growth, and the preservation of chondrocyte phenotype was measured in rat xyphoid chondrocytes see…
In order to improve their adhesion to polyurethane adhesives, three unvulcanized block styrene-butadiene-styrene (SBS) rubbers with styrene contents between 33% and 55% were surface-treated with solutions of 2 wt% trichloro-isocyanuric acid (TCI) in ethyl acetate. The joint strength was estimated using T-peel tests an…
Three modifications of the sodium hydrogen sulphate (NaHSO4·H2O, A-NaHSO4, B-NaHSO4) have been prepared. Their vibrational spectra have been measured. The results are discussed in relation to the structures of crystals. The good agreement between the crystal structure, selection rules and vibrational spectra is observ…
The interaction between K atoms and the (110) rutile surface was analyzed by performing ab initio Hartree−Fock calculations and molecular dynamics simulations, demonstrating that the interaction is mainly electrostatic. The preferential sites of adsorption were determined, and the effect of the coverage was studied. O…
The d2–d2 homobimetallic complex (Cp2V)2(3η:4η-Me3-SiCC–CC–CCSiMe3) was synthesized from Me3SiCC–CC–CCSiMe3 and Cp2V and characterized by an X-ray crystal structure; magnetic moment measurements from 300 to 2 K indicated a weak antiferromagnetic J exchange coupling of –3.7 cm–1.
(1999). Corrosion properties in weldments of stainless steels (1). Metallurgical factors affecting corrosion properties. Welding International: Vol. 13, No. 11, pp. 845-854.
The stereochemical features of the interaction between the sulfur atom of methionine residues and surrounding atoms are examined on a large set of known protein crystal structures. It appears that the minimum energy conformations observed in small molecule crystals are not observed within the protein core. This sugges…
The synthesis of a new family of 1,2-diarylethenes, helically locked 1,2-dithienylethenes, is reported, along with their photochromic properties in solution and as polymeric films.
Ferroelectric domain assemblages of bulk and thin film Pb(Zr,Ti)O3 (PZT) ceramics are characterized as a function of grain size. Specifically, domain morphologies of chemically prepared, bulk PZT 95/5 (rhombohedral symmetry) ceramics are compared to tetragonally distorted perovskite PZT thin films of composition rangi…
Carbothermal reduction of titanium dioxide is a very complex reaction. It comprises several successive or simultaneous reactions, interest being focused on the sequence: which is itself composed of two reactions: the first being a quasi-equilibrium which fixes the partial pressure of carbon dioxide for the second reac…