Materials Literature
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SUMMARY The methods for vitrifying pure liquid water are reviewed: jet‐freezing of water/oil emulsions, vitrification of thin water layers on an electron‐microscope specimen grid, high‐pressure jet‐freezing and rapid cooling of aerosol droplets on a cryoplate. The first three need a liquid cryomedium for heat transfer…
We describe a new Thiobacillus species which is a gram-negative, motile, rod-shaped organism having polar flagella. The optimum growth temperature is 43 to 45°C, and the optimum pH range is 6.0 to 7.5. This organism is obligately chemolithotrophic and autotrophic and has ribulose bisphosphate carboxylase activity. It…
This paper is concerned with the a priori theory of the photoemission process in solids. Scattering-theoretical and response-theoretical approaches are discussed and a new demonstration of their equivalence is given. The elastic photoemission spectrum is analyzed in detail and an expression exact to all orders in inte…
Electrical conduction in amorphous In x Se 100- x films is actually n -type, although some workers have considered it to be p -type, since p -type conduction is observed in the partially-crystallized films. A fairly large upward-Fermi-level-shift appears, in particular, in films with composition near x =40. Raman meas…
Explants of muscular and adipose tissue embedded in a three-dimensional matrix of fibrin or collagen fibrils give rise to an extensive outgrowth of branching and anastomosing capillary-like tubes. This culture system provides a simple in vitro model for the study of angiogenesis.
Abstract Several hydrates can be synthesized from well-crystallized kaolinites; of importance to the present work are a 10-Å hydrate (called the QS-10 hydrate), an 8.6-Å hydrate, and two kinds of partially dehydrated mixed-layer hydrates. One kind is a series of unstable materials with d(001) varying continuously betw…
Abstract not Available.
Potentiostatic, potentiodynamic, and immersion tests were conducted on a range of alloys used in paper-machine service. It was found that thiosulfate contamination of white water can cause pitting in AISI 304 and CA-15 stainless steels (SS), and, by comparison, salts such as NaCl, Na2SO3, and Al2(SO4)3 are much less c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransparent metals preparation and characterization of light-transmitting platinum filmsA. Heller, D. E. Aspnes, J. D. Porter, T. T. Sheng, and R. G. VadimskyCite this: J. Phys. Chem. 1985, 89, 21, 4444–4452Publication Date (Print):October 1, 1985Publication History Publishe…
The measurement of volume charges within insulators has been attempted by various methods, including thermal, optical, mechanical, and electrical stimulation of the sample. A new method incorporating pulse electrical stimulation and pulsed acoustic detection is reported here. This technique is an extension of a previo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTetrakis(1,3-dithiol-2-ylidene)cyclobutane: a novel and promising electron donor for organic metalsToyonari Sugimoto, Hiroshi Awaji, Yohji Misaki, Zenichi Yoshida, Yasushi Kai, Hajime Nakagawa, and Nobutami KasaiCite this: J. Am. Chem. Soc. 1985, 107, 20, 5792–5793Publicatio…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPseudorotational mechanism for the inversion of 10-Si-5 siliconates: ligand structure and reactivityWilliam H. Stevenson III, Scott Wilson, J. C. Martin, and William B. FarnhamCite this: J. Am. Chem. Soc. 1985, 107, 22, 6340–6352Publication Date (Print):October 1, 1985Public…
PROLOGUE Computers influence our lives in more ways than we care to admit, and simulation or modeling is just one facet of a vast activity that will inevitably continue to grow even larger. Nowadays, computer simulation is used routinely in fields as diverse as econometrics and meteorology. The successes that have bee…
Abstract Cellulose fibers treated with different coupling agents based on trichloro‐ s ‐triazine have been evaluated in terms of their reinforcement effect on unsaturated polyesters. The treatment with coupling agents containing double bonds resulted in what we believe to be the formation of covalent bonds between fib…
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,…