Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMorphology and ionic conductivity of polymer complexes formed by segmented polyether poly(urethane urea) and lithium perchlorateMasayoshi Watanabe, Shinichiro Oohashi, Kohei Sanui, Naoya Ogata, Tadahiko Kobayashi, and Zentaro OhtakiCite this: Macromolecules 1985, 18, 10, 194…
Machine simulations and effective-medium theories are used to examine the influence of transverse (i.e., noncentral) forces on the elastic percolation transition in two dimensions. We consider models in which the transverse forces arise from (1) contact interactions between pairs of macroscopic particles and (2) bond-…
Thermodynamic calculations have been used to construct time temperature sensitization (TTS) diagrams for AISI 304 stainless steels (SS). The quantitative Stawstrom and Hillert model, which is based on chromium diffusion control of sensitization, was used to calculate the TTS diagrams. Electrochemical potentiokinetic r…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNovel structural modulation in the ambient-pressure sulfur-based organic superconductor .beta.-(BEDT-TTF)2I3: origin and effects on its electrical conductivityPeter C. W. Leung, Thomas J. Emge, Mark A. Beno, Hau H. Wang, Jack M. Williams, Vaclav Petricek, and Philip CoppensC…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTriangular platinum and nickel clusters: the "tinker-toy" construction of chains with high nuclearityDennis J. Underwood, Roald Hoffmann, Kazuyuki Tatsumi, Akira Nakamura, and Yasuhiro YamamotoCite this: J. Am. Chem. Soc. 1985, 107, 21, 5968–5980Publication Date (Print):Octo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRole of the intermolecular interactions in the two-dimensional ambient-pressure organic superconductors .beta.-(ET)2I3 and .beta.-(ET)2IBr2Myung Hwan Whangbo, Jack M. Williams, Peter C. W. Leung, Mark A. Beno, Thomas J. Emge, and Hau H. WangCite this: Inorg. Chem. 1985, 24,…
The coupled-cluster or exp S formalism, where the wave operator is expressed in exponential form, is treated for a general, multi-Configurational model space. It is shown that the cluster operator, S , is rigorously connected when the model space is complete or "quasi-complete" in the sense that it contains all config…
The following is a discussion of the article entitled “The Existence of Imidazoline Corrosion Inhibitors,” by J. A. Martin and F. W. Valone, published in Corrosion, Vol. 41, No. 5, p. 281, 1985.
Breakdown of SF6is of commercial interest as a result of the large amounts of SF6-insulated switchgear installed world wide and is of technical interest as a result of the excellent dielectric strength of the gas caused by its high electronegativity. Previous studies in the area of positive surge breakdown area have c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleVibrational study of the dynamics of n-alkylammonium chains in the perovskite-type layer compounds (CnH2n+1NH3)2CdCl4 (n = 8, 12, 16)L. Ricard, R. Cavagnat, and M. Rey-LafonCite this: J. Phys. Chem. 1985, 89, 22, 4887–4894Publication Date (Print):October 1, 1985Publication Histo…
Abstract Studies on the effect of nitrogen plasma on morphology and textile properties of mulberry silk fibers and fabrics have been conducted. The changes in the morphological structure have been monitored by transmission electron microscopy, X‐ray diffraction, and internal reflection infrared spectroscopy. The chang…
Single-crystal neutron diffraction has been used to observe the interactions between deuterated ethanol (CD3CD2OH) and lysozyme in triclinic crystals of hen egg white lysozyme soaked in 25% (v/v) ethanol solutions. A total of 6047 observed reflections to a resolution of 2 A were used, and 13 possible ethanol sites wer…
Abstract The complex degradation behavior of a poly(vinyl chloride) (PVC) cable jacketing material in combined radiation/temperature/air aging environments is experimentally separated into two dominant radiation dose‐rate effect mechanisms. The first, operative at high dose rates, involves diffusion‐limited oxidation,…
Ultrasonic determinations were made of facial tissue thicknesses in 50 healthy American caucasoid children, ranging in age from 4 to 15. Twenty measurements were taken at sites along the median, right sagittal, and right lateral planes. A static scanner was used in the B-mode. Three measurements significantly increase…
The first order anisotropy constants K u1 of the recently found tetragonal rare earth-iron borides R 2 Fe 14 B (P4 2 /mnm) have been measured for R=Y, Ce, Pr, Nd, Gd, Tb, Dy and Ho in a magnetic field up to 1600 kA/m from 4.2 K to about 600 K on single crystal samples.
We studied various properties of nonallophanic Andosols in Japan. Our results showed that, despite many similarities between nonallophanic and allophanic Andosols, significant dissimilarities also exist between the two groups of soils. The nonallophanic Andosols used for our study formed from rhyolitic, dacitic, or an…
Laser action at 530 nm using H3 centers in diamond was observed with an efficiency of 13.5% at room temperature. Optical double-resonance experiments on N3 centers provided direct evidence for a (2)A metastable level. Its presence results in rapid decay of the excited (2)E state and low quantum efficiency as well as s…
The first self-consistent spin-polarised band-structure calculation of the ferromagnetic compound MnBi in its low-temperature phase has been performed. The spin-orbit interaction was treated as a perturbation using scalar-relativistic wavefunctions. On the Mn atoms an effective 3d 5.5 configuration is found, with a ma…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSubstituent effects on the electronic structure of metalloporphyrins: a quantitative analysis in terms of four-orbital-model parametersJ. A. Shelnutt and V. OrtizCite this: J. Phys. Chem. 1985, 89, 22, 4733–4739Publication Date (Print):October 1, 1985Publication History Publ…
This paper gives a brief survey over some recent work on surface coatings for energy efficiency and solar applications. Specifically, it covers coatings for - selective absorption of solar energy (for solar collectors), - selective emission of infrared radiation in the 8-13 μm range (for passive cooling devices), - vi…