Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Experimental studies of the diamond (111) surface are presented. While no intrinsic surface states have been found on the 1×1 surface, our new results in ultraviolet photoemission spectroscopy (15 eV?hν?25 eV) show evidence of a band of surface states on the 2×2/2×1 reconstructed surface. The band of surface states (w…
XPS measurements of core-level binding energies have been used to determine the interface Fermi-level position in (100) and (110) n-and p-type GaAs samples as a function of surface treatment. A variation in interface Fermi-level position of up to 0.7 eV has been observed. The difference in interface Fermi-level positi…
A molecular dynamics simulation of crystallization by the process of spontaneous homogeneous nucleation for a model of 4000 soft spheres with periodic boundary conditions is reported. When the amorphous system in the metastable state, at a point for which classical homogeneous nucleation theory predicts a vanishing of…
Surface photovoltage spectroscopy with clean 2×1 reconstructed Si(001) surfaces revealed indirect transitions from the bulk valence band into a band of empty surface states at (0.59 ± 0.04) eV above it. Chemisorption of atomic hydrogen is known to finally produce a Si(001)− 1×1:H structure and was found to remove thes…
In addition to its known effect in suppressing the deacetylation of the nucleosomal core histones, sodium butyrate in the concentration range 0.5 to 15 mM causes a selective inhibition of [32P]phosphate incorporation into histones H1 and H2A of cultured HeLa S3 cells. No commensurate general inhibition of phosphorylat…
Abstract Seventeen well‐drained pedons were sampled in Pennsylvania and northern West Virginia. Sixteen of the pedons had well‐expressed Spodosol morphology while one had very marginal Spodosol morphology. These pedons were classified according to Soil Taxonomy and the Canadian soil classification system. The degree o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInvestigation of solutions and gels of poly(4-methyl-1-pentene) in cyclohexane and decalin by viscosimetry, calorimetry, and x-ray diffraction. A new crystalline form of poly(4-methyl-1-pentane) from gelsShaul M. Aharoni, Gerard Charlet, and Genevieve DelmasCite this: Macrom…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlame retardant viscose rayon containing a pyrophosphateRainer WolfCite this: Ind. Eng. Chem. Prod. Res. Dev. 1981, 20, 3, 413–420Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https://pubs.acs.org/do…
Abstract not Available.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystalline morphology of isothermally crystallized branched polyethyleneM. Glotin and L. MandelkernCite this: Macromolecules 1981, 14, 5, 1394–1404Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published inissue 1 September 1981https…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of the χ parameter for poly(dimethylsiloxane) solutions by the UNIFAC group contribution methodMoshe GottliebMoshe GottliebMore by Moshe Gottlieb and Mordechay HerskowitzMordechay HerskowitzMore by Mordechay HerskowitzCite this: Macromolecules 1981, 14, 5, 1468–14…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOptical activity induced in terbium(III) tris(pyridine-2,6-dicarboxylate) through association with certain chiral amino acidsHarry G. BrittainCite this: Inorg. Chem. 1981, 20, 9, 3007–3013Publication Date (Print):September 1, 1981Publication History Published online1 May 200…
A b initio calculations employing both minimal (STO–4G) and split valence (4–31G) basis sets have been used to study the conformational energy surface of N-benzylideneaniline (NBA). The former indicate that the minimum energy conformation of NBA corresponds to a rotation about the N–phenyl bond of ≊ 45° and a rotation…
This paper reviews the history of IBM contributions over the last quarter century to electronic structure theory. The two main sections of the paper deal with large-scale computations in quantum chemistry and the study of the electronic structure of solids. The paper briefly discusses the methods of ab initio quantum…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVolume dependence of the elastic equation of state. 2. Solution-cured poly(dimethylsiloxane)R. W. Brotzman and B. E. EichingerCite this: Macromolecules 1981, 14, 5, 1445–1448Publication Date (Print):September 1, 1981Publication History Published online1 May 2002Published ini…
Abstract Polarizing microscope, electron microprobe and X-ray diffraction examination of minerals in a soil profile developed on a glauconite sand indicate that destabilization of glauconite can be a progressive process which appears to be the reverse of glauconitization. Glauconite in these soils appears to be destab…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoresponsive polymers. Dynamics of conformational changes of polyamides with backbone azobenzene groupsMasahiro Irie and Wolfram SchnabelCite this: Macromolecules 1981, 14, 5, 1246–1249Publication Date (Print):September 1, 1981Publication History Published online1 May 200…
Abstract From studies of a series of accelerated sulfur vulcanizations of natural rubber, the structural basis of the reversion in macroscopic physical-mechanical properties has been determined. The amount of chemically induced trans -methine butadiene-like structure increases as the reversion process proceeds. When t…
Abstract Gas evolution and oxygen consumption in the γ‐irradiation of PVC were studied. The gas evolution and the oxidative degradation are retarded by the presence of plasticizers and stabilizers. The G (HCI) and G (H 2 ) and 8 and 0.24 for the irradiation of pure PVC under vacuum and 0.02 and 0.14 for that of plasti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of metalloporphyrin .pi. radicals. 2. Thin-layer spectroelectrochemistry of zinc tetraphenylporphyrin cation radicals and dications in the presence of nitrogenous basesK. M. Kadish and R. K. RhodesCite this: Inorg. Chem. 1981, 20, 9, 2961–2966Publication Date (Prin…