Materials Literature
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Abstract Alkyl β ‐D‐glycopyranosides composed of glucose, maltose or maltotriose attached to alkyl groups having from 4 to 18 carbon atoms were synthesized and tested for their physical and functional properties. Values are given for melting points, optical rotations, detergencies, critical micelle concentrations, sur…
In the present work, the temperature dependence of the magnetostriction constant, λs, is presented for two Co-rich amorphous alloys which have a very low magnetostriction (about 10−7). These measurements have been carried out with the help of a new sensitive method and a change of sign of λs has been found experimenta…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransfer of electronic excitation energy in the antiferromagnets rubidium trichloromanganate(II), cesium trichloromanganate(II), cesium tribromomanganate(II), and rubidium tetrachloromanganate(II)Ursula Kambli and Hans U. GuedelCite this: Inorg. Chem. 1984, 23, 22, 3479–3486…
Several methods were explored for characterizing sized yams and size films in order to establish relationships that might be useful in predicting weaving performance. A variety of natural and synthetic sizes were applied to cotton and to polyester/cotton spun yams in a laboratory sizing apparatus. Although yam tensile…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharacterization of a platinum pyrimidine blue: synthesis, structure, and physical properties of cis-diammineplatinum 1-methyluracil bluePradip K. Mascharak, Ian D. Williams, and Stephen J. LippardCite this: J. Am. Chem. Soc. 1984, 106, 21, 6428–6430Publication Date (Print):…
The effects of potential and p H on the rate of the hydrogen evolution reaction on zone‐refined titanium have been determined in acidic sulfate and chloride media over the p H range of 0 to 4.0. In all cases, the cathodic Tafel slope is equal to −120 m.V, i.e. , ( ∂ E / ∂ log | i H , ∝ | ) pH = − 2 ( 2.303 RT / F ) .…
Abstract The response of glass‐forming systems to isobaric three‐step thermal cycles involving cooling, isothermal annealing, and subsequent reheating has been investigated comprehensively using numerous combinations of the experimental and material parameters. The latter include the retardation spectrum or response f…
The results of optical rotatory dispersion (ORD) measurements in the third cholesteric blue phase (BP III) are reported for both pure compounds and mixtures. The spectra possess weak, broad, anomalous regions at short wavelength, the sign and wavelength dependence of which follows the sense and pitch of the cholesteri…
Data are presented on the electronic conductivity and molten alkali carbonate stability (Li:K binary of 62:38 mole ratio) of various materials at 923 K under a 30% atmosphere. Of the examined materials, only and satisfied both criteria sufficiently for acceptable use as molten carbonate fuel cell cathode materials.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComposition dependence of bremsstrahlung background in electron-probe x-ray microanalysisAndrzej A. Markowicz and Rene E. Van GriekenCite this: Anal. Chem. 1984, 56, 12, 2049–2051Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of measurement error variances from process dataGedeon A. Almasy and Richard S. H. MahCite this: Ind. Eng. Chem. Process Des. Dev. 1984, 23, 4, 779–784Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published inissue 1 October…
Tension-torsion tests with a computer controlled servohydraulic testing machine are reported. Yield surfaces were obtained during a load controlled path, which includes combined stress creep, as well as during a strain controlled path, which includes combined stress relaxation. These surfaces and their relation to the…
The optical and near infrared absorption of dilute Tm3+ and Yb3+ impurities in YPO4 and LuPO4 single crystals have been measured at liquid helium and nitrogen temperatures. For Tm3+, the spectral region from 5 000 to 38 000 cm−1 was examined and Zeeman spectra were obtained in the visible region. The observed transiti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvent effects in polyelectrolyte solutions. 1. Potentiometric and viscosimetric titration of poly(acrylic acid) in methanol and counterion specificityNicolaas T. M. Klooster, Frans Van der Touw, and Michel MandelCite this: Macromolecules 1984, 17, 10, 2070–2078Publication…
The stationary state of a phenomenological model of two-dimensional nucleation-controlled crystal growth is found, using an operator formalism akin to quantum field theory, and the implications for the growth of polymer crystals are briefly discussed. The method also enables a correspondence to be drawn between this p…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControl of spin state in (porphinato)iron(III) complexes. An axial ligand orientation effect on the spin state in bis(2-methylimidazole)(octaethylporphinato)iron(III) perchlorateDavid K. Geiger, Young Ja Lee, and W. Robert ScheidtCite this: J. Am. Chem. Soc. 1984, 106, 21, 6…
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
X-ray absorption spectra about the K edges of Ni, Cu and Ti have been measured at the Stanford Synchrotron Radiation Laboratory. The imaginary part of the atomic scattering factor f ′′ was determined using the optical theorem and the real part f ′ computed by the Kramers–Kronig dispersion relation. Methods for evaluat…
Abstract The ASTM E‐42 committee round robin on XPS measurements found, in a simple survey, that the intensity‐energy response of electron spectrometers was unacceptably unreliable. In this paper new, high accuracy, reference procedures are developed to define the relative intensity‐energy response function of spectro…
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