Materials Literature
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Abstract Spodosols similar in parent material, relief, and age but different in soil climate and vegetation were studied along two transects in Quebec, Canada. Soils of the northern transect (between 50 and 52°N) were under spruce ( Picea mariana ) forest in a colder region than that of the southern transect (at 46°N)…
Abstract A new PPy composite membrane with PE was prepared by electropolymerization of py in the presence of PE. The PPy/PE film had highly tensile strength, and played a role as ‘charge-controllable membrane’. A novel idea on the immobilized polymer dopant of PPy was presented.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntrinsic reactivity of magnesium surfaces toward methyl bromideRalph G. Nuzzo and Lawrence H. DuboisCite this: J. Am. Chem. Soc. 1986, 108, 11, 2881–2886Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published inissue 1 May 1986https://pub…
The influence of molecular properties on the rotational viscosity, γ1, of nematic liquid crystals is studied. The shear viscosity under flow alignment, ηs, is determined for the same liquid crystals. A significant correlation between both quantities is found. An equation is presented which allows the calculation of γ1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConvergent functional groups. 2. Structure and selectivity in olefin epoxidation with peracidsJ. Rebek Jr., L. Marshall, J. McManis, and R. WolakCite this: J. Org. Chem. 1986, 51, 10, 1649–1653Publication Date (Print):May 1, 1986Publication History Published online1 May 2002…
Structures of the thermotropic mesophases of lead(II) decanoate are reassigned following optical and X-ray diffraction studies. These results, and those of D.S.C., Raman and 207Pb N.M.R. spectroscopy, indicate formation of a lower temperature mesophase involving mainly increased lateral disorder, and a higher temperat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMacrocyclic complexes of indium(III): novel .mu.-hydroxo- and .mu.-oxo-bridged complexes. Crystal structures of [L4In4(.mu.-OH)6](S2O6)3.4H2O and [L2In2(CH3CO2)4(.mu.-O)].2NaClO4 (L = 1,4,7-triazacyclononane)Karl Wieghardt, Michael Kleine-Boymann, Bernhard Nuber, and Johanne…
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 W. A. Swansiger; Summary Abstract: Tritium solubility in high purity beryllium. Journal of Vacuum…
Abstract Petrocalcic horizons occur in a number of soils formed from Cretaceous limestone in central and west Texas (Edwards Plateau land resource area). Microfabric and stable C isotope analyses confirmed that the indurated carbonate zones are mostly of pedogenic origin. Multiple lines of evidence indicate that the p…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanical properties of substituted polyacetylenesToshio Masuda, Ben Zhong Tang, Akira Tanaka, and Toshinobu HigashimuraCite this: Macromolecules 1986, 19, 5, 1459–1464Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published inissue 1 May…
The pyrolytic decomposition of tetraethylorthosilicate (TEOS) has been used to deposit highly doped borophosphosilicate glass (BPSG) films. The experiments were carried out in a modified low pressure chemical vapor deposition furnace in the 620–680 °C range at a deposition pressure of 0.5 Torr. Trimethylborate and pho…
The needle-shaped frustules of the diatoms Thalassionema Grunow and Thalassiothrix Cleve et Grunow are furnished with uniquely structured areolae which appear as a row of depressions along each edge of the valve. In Thalassionema the areolae open freely outwards and are surmounted by one to three simple silica branche…
The interference of scalar optical Floquet-Bloch waves in periodically stratified media is discussed in detail. Two main types of interference are identified and fully analyzed: normal and exchange interference, producing, respectively, real and virtual spatial fringes. In the paper considerable use is made of a recip…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetochemistry of copper(II): exchange interactions in catenated acetatodiamminebromocopperRichard L. Carlin, Klaas Kopinga, Olivier Kahn, and Michel VerdaguerCite this: Inorg. Chem. 1986, 25, 11, 1786–1789Publication Date (Print):May 1, 1986Publication History Published o…
Abstract Three hypotheses concerning the movement and retention of anions in forest soils were tested in a series of laboratory and field studies on two Tennessee Ultisols with mixed deciduous forest cover and two Washington Inceptisols, one with deciduous (red alder Alnus rubra Bong.) and one with coniferous [Douglas…
Chemical bonding and reaction of in situ deposited Ti on a series of polyimide surfaces have been investigated. X-ray photoelectron spectroscopy has been used to probe site specific information for bonding of various functional groups of polyimide molecules, while ultraviolet photoelectron spectroscopy has been applie…
Abstract Flexural properties of moldings made by Reaction Injection Molding (RIM), which are structural foams consisting of high density skin and low density core, were investigated by three‐point bending tests. Two failure modes were observed in bending tests of the moldings made by RIM, and they are classified as fo…
Photoelectron spectroscopy of adsorbed Xe (PAX) was used to characterize various Pt/TiO2 (100) surfaces on an atomic scale. The PAX data provide useful information on both geometrical and electronic states of various surface sites. For example, both Ar ion sputtering and high temperature annealing (850 °C) in vacuum p…
Among the first row transition metal oxides from V2O5 to ZnO, CuO was found to be the most easily reduced by hydrazine. CuO surfaces exposed to hydrazine at ∼10−6 Torr could be reduced to the metallic state at room temperature. Reduction kinetics, continuously measured at the surface using in situ x-ray photoelectron…
SUMMARY A Mg‐base Laves phase was investigated by high resolution electron microscopy (HREM). Linear defects found at terminations of stacking faults were classified into three groups. The first is a partial dislocation at a termination of a stacking fault, the second is a superposed partial dislocation which is defin…