Materials Literature
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Existing experimental evidence strongly suggests that the mechanism of activity of the Antarctic AFGP molecules is the inhibition of ice growth by competitive adsorption onto the growth sites of ice. The data further suggest the blocking of the formation of large critical nuclei for ice growth. Experiments showing tha…
Dendrites of a solid growing steadily in an undercooled melt have a shape given by the solution of certain nonlinear integrodifferential equations. If one does not take account of the Gibbs‐Thomson condition, these equations have an exact solution due to Ivantsov and to Cahn and Horway. For elementary dimensional reas…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation P. Moldenaers, J. Mewis; Transient Behavior of Liquid Crystalline Solutions of Poly(benzylglutama…
Poly(organophosphazenes) have been synthesized with alkyl-ether-alkoxy groups attached to the phosphorus atoms of the skeleton. These species are water-stable and either water-soluble or hydrophilic polymers. Specific members of this series form complexes with metal salts, which are excellent solid electrolyte materia…
Diamond thin films have been formed by thermal chemical vapor deposition (thermal CVD) using the organic compounds such as CH 3 OH, C 2 H 5 OH, CH 3 COCH 3 C 2 H 5 OC 2 H 5 , and (CH 3 ) 3 N. The films are grown on the silicon substrates with high growth rate (8–10 µm/h) under the pressure ranging 1–800 Torr. This gro…
Cloned bovine aortic endothelial cells were cultured with [35S]Na2SO4 and proteolyzed extensively with papain. Radiolabeled heparan sulfate was isolated by DEAE-Sephacel chromatography. The mucopolysaccharide was then affinity fractionated into two separate populations utilizing immobilized antithrombin. The heparan s…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheoretical aspects of metal atom clustersJaroslav Koutecky and Piercarlo FantucciCite this: Chem. Rev. 1986, 86, 3, 539–587Publication Date (Print):June 1, 1986Publication History Published online1 May 2002Published inissue 1 June 1986https://pubs.acs.org/doi/10.1021/cr0007…
The fracture repair of reptilian dermal bones has not previously been reported. Moreover, repair of fractured dermal bones in birds and mammals involves secondary chondrogenesis whereas that of amphibians does not. Therefore an investigation into the repair of fractured reptilian dermal bones could reveal the stage du…
Mechanoelectrical conversion properties of dry human skin have been examined and their origin investigated in dermis, epidermis and horny layer. Shear stress piezoelectricity is observed in all three cutaneous sections. Piezoelectric properties of dermis can be ascribed to its collagen structural network, while the pi…
A M Stoneham 1985 Oxford: Oxford University Press xix + 954 pp price £19.50 (paperback) ISBN 0 19 851378 X Most solid state physicists will inevitably be concerned in their research with the various types of defect present in the materials they deal with and will need to know something of their electronic properties.…
S W S McKeever 1985 Cambridge: Cambridge University Press xiv + 376 pp price £40 ISBN 0 521 24520 6 The stated aim of this book is to unify previously fragmented specialist treatments of thermoluminescence (as in geology or radiation dosimetry, for example) under one banner. I believe this has been achieved.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpin state of cobalt(II) in five- and six-coordinate Lewis base adducts of N,N'-ethylenebis(3-carboxysalicylaldiminato)cobalt(II). New spin-crossover complexesPierre Thuery and Jacqueline ZarembowitchCite this: Inorg. Chem. 1986, 25, 12, 2001–2008Publication Date (Print):Jun…
The origin of the occurrence of induced smectic phases (ISP) in binary mixtures of liquid crystals is discussed. First the experimental evidence is reviewed, which leads to a division in strong complexing (electron–donor–acceptor complex as indicated by a charge–transfer band) and weak complexing, where only indirect…
Ultrasonic (70 W, 20 kHz) solution (2%) degradations of poly(alkyl methacrylates) have been carried out in toluene at 27°C and in tetrahydrofuran (THF) at -20°C. Mw and Mn of all polymers (before and after sonification) were computed from GPC. Irrespective of the alkyl substituent, Mw decreased rapidly at first and th…
A new modelling method for magnetic circuits is presented. The method can be used to model magnetic circuits with any number of windings. The models incorporate adequate information about the correct distribution of leakage energy, the presence of gaps throughout the core, the arrangement of the windings, and the type…
Mechanisms of the reversible photodarkening phenomenon have been studied for amorphous S and Se. These materials exhibit smaller photodarkening effects when illuminated with sub-bandgap illumination at 80 K. A configurational model is proposed for interpreting the results, and parameters characterizing the model are e…
Available mmpositional data for l27t samples of natural tetrahedrite and 295 of synthetic tetrahedrite were s1amingd. They show: compositional ranges of four to ten Cu, zero to six Ag, and a total of two (Fe, Zn, Hg) atoms, complete substitution (up to four atems) amongAs, Sb and Te, and a total of 13 atoms of S per f…
Boron nitride films have been deposited by a metal organic chemical vapor deposition (MO‐CVD). The reaction between ammonia and triethylboron is carried out in the temperature range of 750°–1200°C with the molar ratio of . Colorless and transparent films are obtained at temperatures of 950°–1100°C with the molar ratio…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResonance Raman studies of metal tetrakis(4-N-methylpyridyl)porphine: band assignments, structure-sensitive bands, and species equilibriaNils Blom, Junichi Odo, Kazuo Nakamoto, and Dennis P. StrommenCite this: J. Phys. Chem. 1986, 90, 13, 2847–2852Publication Date (Print):Ju…
Abstract Morphology, crystallinity, and melting behaviour of solution‐cast films of poly(ethylene oxide) (PEO)/poly(methyl methacrylate) (PMMA) blends were investigated as a function of composition, using optical and scanning electron microscopy, differential scanning calorimetry, and dilatometry. Up to a content of a…