Materials Literature
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Nontrans has been used as a stick with which to beat sense-datum theorists as well as to cast doubt on the possibility of giving a rational reconstruction of the semantics of everyday color terms. In both cases, what is called into question is the coherence of phenomenal color predicates, or, alternatively, the concep…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBonding-state characterization of constituent elements in phyllosilicate minerals by XPS and NMRA. R. Gonzalez-Elipe, J. P. Espinos, G. Munuera, J. Sanz, and J. M. SerratosaCite this: J. Phys. Chem. 1988, 92, 12, 3471–3476Publication Date (Print):June 1, 1988Publication Hist…
Abstract When growing semiconductor crystals from the melt, the free convection induced in the liquid phase by the imposed thermal boundary conditions can become periodic in time. Recently, the onset of this oscillatory convection has been simulated directly through solution of the time‐dependent governing equations f…
We solve exactly for the polymer adsorption transition in the two- and three-dimensional directed self-avoiding walk models, by employing a novel transfer-matrix approach. The behavior of the fraction of adsorbed monomers at the threshold and in the high-coverage regime is described in detail, as is the phase diagram…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeat capacity and glass transition behavior of amorphous iceY. P. Handa and D. D. KlugCite this: J. Phys. Chem. 1988, 92, 12, 3323–3325Publication Date (Print):June 1, 1988Publication History Published online1 May 2002Published inissue 1 June 1988https://pubs.acs.org/doi/10.…
A theoretical basis for the integration method of predicting the strength of insulation subjected to impulses of nonstandard wave shapes is presented. Two theoretical approaches are developed for a general physical model of impulse breakdown applicable to gaseous, liquid, and solid insulation, and from an energy-balan…
Abstract Phase continuity has been explored as a function of composition for three two‐phase polymer blends produced by mixing in the melt: polystyrene/poly(methyl methacrylate), polystyrene/cis‐polybutadiene, and poly(methyl methacrylate)/ethylene‐propylene rubber. The condition for dual phase continuity Is the appli…
This report describes the electrochemical behavior of polyaniline prepared in aqueous solution with various acid electrolytes. Electroactive polyaniline with two different cyclic voltammograms, i.e. , with and without the additional peak at 500 mV, can be produced by controlling the current densities during the prepar…
A poly-beta-hydroxybutyrate complex extracted from the plasma membranes of genetically competent Escherichia coli contained polyhydroxybutyrate:polyphosphate:calcium in molar ratios approximating 1:1:0.5. The chain length of the polyhydroxybutyrate was estimated as 120-200 subunits, and that of the polyphosphate was e…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of naphthalene-bridged porphyrin dimers and their orientation-dependent exciton couplingAtsuhiro. Osuka and Kazuhiro. MaruyamaCite this: J. Am. Chem. Soc. 1988, 110, 13, 4454–4456Publication Date (Print):June 1, 1988Publication History Published online1 May 2002Pub…
Measurement techniques of volume charge distribution within insulating materials are developed using a pulsed electroacoustic method. The fundamental equation of the relation between the charge distribution in the insulating material and the signal voltage from the electroacoustic transducer is presented along with th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFive-fold diamond structure of adamantane-1,3,5,7-tetracarboxylic acidOtto. ErmerCite this: J. Am. Chem. Soc. 1988, 110, 12, 3747–3754Publication Date (Print):June 1, 1988Publication History Published online1 May 2002Published inissue 1 June 1988https://pubs.acs.org/doi/10.1…
Abstract Recent progress, in the quantitative analysis of the distortion of surface electron spectra, resulting from inelastic electron scattering, is reviewed. A physical model for the problem is formulated and based on this, basic deconvolution formulae are found. In the formulae, detailed information on the differe…
Passive glass waveguides made by ion-exchange technique are potential candidates for integrated optics (IO) applications. The authors review the advantages in the technology as applied to fabrication of useful single-mode structures. Progress in process, fabrication, modeling, and waveguide performance using different…
Abstract The Reference Intensity Ratio (RIR) is a general, instrument-independent constant for use in quantitative phase analysis by the X-ray powder diffraction internal standard method. When the reference standard is corundum, RIR is known as I/I c ; These constants are collected in the Powder Diffraction File (1987…
Electron energy-loss spectroscopy measurements have been made on amorphous diamond-like carbon films produced by condensing the plasma stream from a filtered vacuum arc. The results are compared with spectra from diamond, graphitized carbon and amorphous carbon. Although the energy-loss spectra reveal the presence of…
A recent nonlocal damage formulation, in which the spatially averaged quantity was the energy dissipated due to strain-softening, is extended to a more general form in which the strain remains local while any variable that controls strain-softening is nonlocal. In contrast to the original imbricate nonlocal model for…
Excitation spectra of visible luminescence in CsF (2.5-5.6 eV), CsCl (3.9-6.0 eV), CsBr (4.4-6.2 eV), and RbF (2.6-6.2 eV) have been measured at room temperature with use of synchrotron radiation for the energy range up to 40 eV. It is shown that the excitation thresholds of these luminescence bands are located at the…
The electrical conductivity and differential thermal analysis (DTA) characteristics of RECoO 3 (RE=La, Nd, Gd, Ho, Y) have been reexamined. In general, the data are quite different from those previously reported. In particular, first-order semiconductor-to-metal transitions of YCoO 3 , LaCoO 3 and HoCoO 3 are not obse…
There is no fundamental reason that fluids should not be ferroelectric. However, the only knownferroelectric fluids are chiral smectic-$C$ liquid crystals and related structures. We examine the possibility that molecules with permanent dipole moments can form a ferroelectric nematic phase, the least ordered conceivabl…