Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDecomposition of dichlorodifluoromethane on boron phosphate (BPO4) catalystSeiichiro Imamura, Kenichiro Imakubo, Setsuo Furuyoshi, and Hitoshi JindaiCite this: Ind. Eng. Chem. Res. 1991, 30, 10, 2355–2358Publication Date (Print):October 1, 1991Publication History Published o…
Control over the structure of hybrid (colloidal + molecular) aluminosilicate gels was utilized to demonstrate that precursor chemistry has a direct and controllable effect on the ∼1000°C crystallization of spinel and mullite in molecular precursor systems. Synthesis or preparation conditions leading to the development…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResilience of all-carbon molecules C60, C70, and C84: a surface-scattering time-of-flight investigationRainer D. Beck, Pamela St. John, Marcos M. Alvarez, Francois Diederich, and Robert L. WhettenCite this: J. Phys. Chem. 1991, 95, 21, 8402–8409Publication Date (Print):Octob…
Glucose and ball-milled α-Al2O3 mixed powder was hydrothermal treated to synthesize Al2O3/C mixture, which was directly heated to 1700–1750 °C for 10 min holding in N2. Fine and single phase AlON powders were successfully fast prepared by one-step carbothermal reduction and nitridation (CRN). With aggregation of as-pu…
Low-angle X-ray diffraction profiles can provide detailed information about the multilayer periodicity and thickness of the individual layers that make up a multilayer. The effect of discrete and continuous random cumulative fluctuations of the layer thicknesses on the diffraction profiles of single films, bilayers an…
Both bookshelf and quasi-bookshelf layer structures are obtained by using naphthalene base liquid crystal mixture with a rubbed polymer orientation films panel. This panel shows a high contrast ratio reaching at 35:1 and high transmittance of 40% driven by multiplexing method.
Incorporation of dichroic dyes substantially improves the contrast of polymer dispersed liquid-crystal (PDLC) shutters. The efficiency of dichroic dyes in a PDLC shutter depends on the scattering efficiency of the film, the dichroic ratio of the dye, the order parameter of the dye in the liquid crystal, and the fracti…
An immunological investigation was conducted of soluble intra-crystalline macromolecules isolated from living and fossil brachiopod shells, which had previously been used for an immunologically based study of phylogeny (serotaxonomy). The soluble intra-crystalline macromolecules comprised 0.03% by weight of the extant…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of Hansen solubility parameters for selected cellulose ether derivativesWesley L. ArcherCite this: Ind. Eng. Chem. Res. 1991, 30, 10, 2292–2298Publication Date (Print):October 1, 1991Publication History Published online1 May 2002Published inissue 1 October 1991…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, structure, and reactivity of triplatinumgold and triplatinumdigold cluster complexesNicholas C. Payne, Ravindranath Ramachandran, Guy Schoettel, Jagadese J. Vittal, and Richard J. PuddephattCite this: Inorg. Chem. 1991, 30, 21, 4048–4053Publication Date (Print):Oc…
Hydrogen concentration depth profiles on surfaces of SiO 2 glass fractured slowly in water and rapidly in oil were determined by nuclear reaction analysis. It was found that water enters SiO 2 glass during slow crack growth in water.
Galvanic corrosion induced by plastic composite materials (graphite-epoxy-composite-materials, GECMs) coupled to metallic materials (ferrous and nonferrous) in neutral and air-saturated aqueous 3.5% NaCl solution has been investigated. Two types of composites, manufactured by Fiberite and Ciba-Geigy, were electrically…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparative effects on the surface area and pore structure of microporous heteropoly oxometalatesD. Lapham and J. B. MoffatCite this: Langmuir 1991, 7, 10, 2273–2278Publication Date (Print):October 1, 1991Publication History Published online1 May 2002Published inissue 1 Octo…
Abstract The synthesis and p‐ and n‐doping of polyacetylene, (CH) x , the prototype conducting polymer or “synthetic metal” is described together with a qualitative description of its band structure and changes in band structure on doping to yield positive and negative solitons. Other conducting polymers are briefly d…
We have measured the electric-field dependence of the reflectivity of the blue phase III (BP III) of cholesteric liquid crystals when the dielectric anisotropy ${\mathrm{\ensuremath{\epsilon}}}_{\mathit{a}}$0. We propose a model which assumes that the boundary aligns the sample to a depth L and in which L is increased…
The nucleotide and deduced amino acid sequences of the lacA and lacB genes of the Staphylococcus aureus lactose operon (lacABCDFEG) are presented. The primary translation products are polypeptides of 142 (Mr = 15,425) and 171 (Mr = 18,953) amino acids, respectively. The lacABCD loci were shown to encode enzymes of the…
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
Two new configurations for enhanced bending control of beams with in duced strain actuators are presented. In the first configuration the actuator is external to the beam and passes through selective points on the beam. Since the actuator is outside the beam, differential movement between the actuator and the beam is…
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V centers induced by ionizing irradiation at 80 or 300 K in single-crystal and polycrystalline ${\mathrm{MgAl}}_{2}$${\mathrm{O}}_{4}$ samples have been studied by use of electron paramagnetic resonance and optical absorption. ${\mathit{V}}_{\mathit{t}}^{\mathrm{\ensuremath{-}}}$ and ${\mathit{V}}_{\mathit{o}}^{2\math…