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。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVanadium-catalyzed epoxidations. 2. Highly stereoselective epoxidations of acyclic homoallylic alcohols predicted by a detailed transition-state modelEdward D. Mihelich, Karen Daniels, and David J. EickhoffCite this: J. Am. Chem. Soc. 1981, 103, 25, 7690–7692Publication Date…
The preparation of fine-grained high-density compacts of heavily doped n-type Si63.5Ge36.5 alloy and the measurement of their thermal diffusivity over the temperature range 300 to 1150 K are reported. The compacts investigated possessed grain sizes (L) in the range 10<L<25 μm, 5<L<10 μm, an…
Dislocation structures of grain boundaries whose sliding behaviour had already been studied, have been observed by transmission electron microscopy of the slid grain boundaries. The ordered (coincidence) and random boundaries exhibited quite different sliding behaviour and dislocation structures. In the case of ordere…
Not available
Not available
Not available
Not available
The distribution of iodine in polyacetylene doped under conditons typical for most published work is investigated by energy dispersive X-ray analysis under an electron microscope. The 9.1 GHz dielectric constant of a series of iodine doped (CH)x is measured as a function of temperature. From the X-ray analysis we conc…
Recent experimental results on light scattering and absorption in polyacetylene are reviewed, and interpreted in terms of the soliton model. The data indicate that injection of an electron-electron (hole-hole) pair by chemical doping or photoinjection of an electron-hole pair invariably distort the lattice leading to…
Experimental progress is reviewed with emphasis on magnetic and transport studies. The magnetic results are fully consistent with the soliton doping mechanism; the decrease in Curie-law contribution has been demonstrated; the Pauli term remains small (Y < 0.07) and is apparently zero in the limit of completely uniform…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction between nitrogen oxide (NOx) and ammonia on iron oxide-titanium oxide catalystAkira Kato, Shimpei Matsuda, Tomoichi Kamo, Fumito Nakajima, Hiroshi Kuroda, and Tsuneo NaritaCite this: J. Phys. Chem. 1981, 85, 26, 4099–4102Publication Date (Print):December 1, 1981Publ…
1. The afferent responses evoked by mechanical and thermal stimulation of the cat cornea were recorded extracellularly from strands of long and mixed ciliary nerves under deep anaesthesia. 94% of the units studied (n = 53) responded consistently to both stimuli. 2. Conduction velocities, measured by electrical stimula…
Abstract Electron microscopy and electron diffraction studies show that polyethylene crystallizes epitaxially onto crystals of homologous series of (i) condensed aromatic hydrocarbons and (ii) linear polyphenyls. The contact planes of the PE chain‐folded lamellae with the (001) faces of the substrate crystals are foun…
The paper focuses on the establishment of the damage law consistent with the adopted physical interpretation of the damage. The model is developed within the framework of the general thermodynamics theory. In addition, the model incorporates a rigorous mathematical description of the damage growth kinematics including…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLanthanide ion luminescence probes of the structure of biological macromoleculesWilliam D. Horrocks, Jr. and Daniel R. SudnickCite this: Acc. Chem. Res. 1981, 14, 12, 384–392Publication Date (Print):December 1, 1981Publication History Published online1 May 2002Published inis…
A procedure for the refinement of the crystal unit cell from a powder diffraction scan is presented. In this procedure knowledge of the crystal structure is not required, and at the end of the refinement a list of indexed intensities is produced. This list may well be usable as the starting point for the application o…
A new Lagrangian formulation is introduced. It can be used to make molecular dynamics (MD) calculations on systems under the most general, externally applied, conditions of stress. In this formulation the MD cell shape and size can change according to dynamical equations given by this Lagrangian. This new MD technique…